diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-10 22:49:15 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-10 22:49:15 +0100 |
| commit | 9edcfaa349afff3e783884779681b957df50a36a (patch) | |
| tree | 08a1d4418fd2fc9cbbe01defb3b30399d3280da0 /drivers | |
| parent | 57b1659faad0e25acf2164f59bc78eacbd0e5d69 (diff) | |
| parent | c6455af548991ed22c89528f998fd965c052fb2e (diff) | |
| download | linux-9edcfaa349afff3e783884779681b957df50a36a.tar.bz2 | |
Merge tag 'phy-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into char-misc-next
Vinod writes:
phy-for-5.18
- New support:
- Mediatek tphy support for MT8186
- Qualcomm usb phy support for sc8180x and sc8280xp
- Qualcomm ufs phy support for sc8180x and sc8280xp
- Qualcomm usb phy support for MSM8953
- Cadence D-Phy Rx support
- Sun4i support for USB phy
- Rockchip naneng combo phy support for RK3568
- Qualcomm eDP PHY for sc7280
- Updates:
- wake on support for Synopsis XHCI controllers
- Yamilify Qualcomm USB HS phy binding
- Charger detection support for TI tusb1210
* tag 'phy-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (53 commits)
phy: qcom-qmp: add sc8280xp UFS PHY
dt-bindings: phy: qcom,qmp: add sc8180x and sc8280xp ufs compatibles
phy: qcom-snps: Add sc8280xp support
dt-bindings: phy: qcom,usb-snps-femto-v2: Add sc8180x and sc8280xp
dt-bindings: Revert "dt-bindings: soc: grf: add naneng combo phy register compatible"
phy: dt-bindings: Add Cadence D-PHY Rx bindings
phy: dt-bindings: cdns,dphy: add power-domains property
phy: dt-bindings: Convert Cadence DPHY binding to YAML
phy: cadence: Add Cadence D-PHY Rx driver
dt-bindings: phy: renesas,usb2-phy: Document RZ/V2L phy bindings
Revert "PCI: aardvark: Fix initialization with old Marvell's Arm Trusted Firmware"
Revert "usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada 3720"
Revert "ata: ahci: mvebu: Make SATA PHY optional for Armada 3720"
phy: marvell: phy-mvebu-a3700-comphy: Add native kernel implementation
phy: marvell: phy-mvebu-a3700-comphy: Remove port from driver configuration
phy: phy-brcm-usb: fixup BCM4908 support
dt-bindings: phy: mediatek,tphy: Add compatible for MT8192
phy: ti: tusb1210: Add charger detection
phy: ti: tusb1210: Add a delay between power-on and restoring the phy-parameters
phy: ti: tusb1210: Drop tusb->vendor_specific2 != 0 check from tusb1210_power_on()
...
Diffstat (limited to 'drivers')
33 files changed, 2715 insertions, 309 deletions
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h index eeac5482f1d1..a57d90dd4964 100644 --- a/drivers/ata/ahci.h +++ b/drivers/ata/ahci.h @@ -240,8 +240,6 @@ enum { as default lpm_policy */ AHCI_HFLAG_SUSPEND_PHYS = (1 << 26), /* handle PHYs during suspend/resume */ - AHCI_HFLAG_IGN_NOTSUPP_POWER_ON = (1 << 27), /* ignore -EOPNOTSUPP - from phy_power_on() */ AHCI_HFLAG_NO_SXS = (1 << 28), /* SXS not supported */ /* ap->flags bits */ diff --git a/drivers/ata/ahci_mvebu.c b/drivers/ata/ahci_mvebu.c index 3ad46d26d9d5..d4bba3ace45d 100644 --- a/drivers/ata/ahci_mvebu.c +++ b/drivers/ata/ahci_mvebu.c @@ -227,7 +227,7 @@ static const struct ahci_mvebu_plat_data ahci_mvebu_armada_380_plat_data = { static const struct ahci_mvebu_plat_data ahci_mvebu_armada_3700_plat_data = { .plat_config = ahci_mvebu_armada_3700_config, - .flags = AHCI_HFLAG_SUSPEND_PHYS | AHCI_HFLAG_IGN_NOTSUPP_POWER_ON, + .flags = AHCI_HFLAG_SUSPEND_PHYS, }; static const struct of_device_id ahci_mvebu_of_match[] = { diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c index 18296443ccba..b26755bdc9d6 100644 --- a/drivers/ata/libahci_platform.c +++ b/drivers/ata/libahci_platform.c @@ -59,7 +59,7 @@ int ahci_platform_enable_phys(struct ahci_host_priv *hpriv) } rc = phy_power_on(hpriv->phys[i]); - if (rc && !(rc == -EOPNOTSUPP && (hpriv->flags & AHCI_HFLAG_IGN_NOTSUPP_POWER_ON))) { + if (rc) { phy_exit(hpriv->phys[i]); goto disable_phys; } diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index 4f5b44827d21..6bae688852a5 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -1482,9 +1482,7 @@ static int advk_pcie_enable_phy(struct advk_pcie *pcie) } ret = phy_power_on(pcie->phy); - if (ret == -EOPNOTSUPP) { - dev_warn(&pcie->pdev->dev, "PHY unsupported by firmware\n"); - } else if (ret) { + if (ret) { phy_exit(pcie->phy); return ret; } diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c index 788dd5cdbb7d..d5f3b42eb8ce 100644 --- a/drivers/phy/allwinner/phy-sun4i-usb.c +++ b/drivers/phy/allwinner/phy-sun4i-usb.c @@ -43,7 +43,7 @@ #define REG_PHYCTL_A33 0x10 #define REG_PHY_OTGCTL 0x20 -#define REG_PMU_UNK1 0x10 +#define REG_HCI_PHY_CTL 0x10 #define PHYCTL_DATA BIT(7) @@ -82,6 +82,7 @@ /* A83T specific control bits for PHY0 */ #define PHY_CTL_VBUSVLDEXT BIT(5) #define PHY_CTL_SIDDQ BIT(3) +#define PHY_CTL_H3_SIDDQ BIT(1) /* A83T specific control bits for PHY2 HSIC */ #define SUNXI_EHCI_HS_FORCE BIT(20) @@ -115,9 +116,9 @@ struct sun4i_usb_phy_cfg { int hsic_index; enum sun4i_usb_phy_type type; u32 disc_thresh; + u32 hci_phy_ctl_clear; u8 phyctl_offset; bool dedicated_clocks; - bool enable_pmu_unk1; bool phy0_dual_route; int missing_phys; }; @@ -288,6 +289,12 @@ static int sun4i_usb_phy_init(struct phy *_phy) return ret; } + if (phy->pmu && data->cfg->hci_phy_ctl_clear) { + val = readl(phy->pmu + REG_HCI_PHY_CTL); + val &= ~data->cfg->hci_phy_ctl_clear; + writel(val, phy->pmu + REG_HCI_PHY_CTL); + } + if (data->cfg->type == sun8i_a83t_phy || data->cfg->type == sun50i_h6_phy) { if (phy->index == 0) { @@ -297,11 +304,6 @@ static int sun4i_usb_phy_init(struct phy *_phy) writel(val, data->base + data->cfg->phyctl_offset); } } else { - if (phy->pmu && data->cfg->enable_pmu_unk1) { - val = readl(phy->pmu + REG_PMU_UNK1); - writel(val & ~2, phy->pmu + REG_PMU_UNK1); - } - /* Enable USB 45 Ohm resistor calibration */ if (phy->index == 0) sun4i_usb_phy_write(phy, PHY_RES45_CAL_EN, 0x01, 1); @@ -863,7 +865,6 @@ static const struct sun4i_usb_phy_cfg sun4i_a10_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = false, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = { @@ -872,7 +873,6 @@ static const struct sun4i_usb_phy_cfg sun5i_a13_cfg = { .disc_thresh = 2, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = false, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = { @@ -881,7 +881,6 @@ static const struct sun4i_usb_phy_cfg sun6i_a31_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = true, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = { @@ -890,7 +889,6 @@ static const struct sun4i_usb_phy_cfg sun7i_a20_cfg = { .disc_thresh = 2, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = false, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = { @@ -899,7 +897,6 @@ static const struct sun4i_usb_phy_cfg sun8i_a23_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A10, .dedicated_clocks = true, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = { @@ -908,7 +905,6 @@ static const struct sun4i_usb_phy_cfg sun8i_a33_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, - .enable_pmu_unk1 = false, }; static const struct sun4i_usb_phy_cfg sun8i_a83t_cfg = { @@ -925,7 +921,7 @@ static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, - .enable_pmu_unk1 = true, + .hci_phy_ctl_clear = PHY_CTL_H3_SIDDQ, .phy0_dual_route = true, }; @@ -935,7 +931,7 @@ static const struct sun4i_usb_phy_cfg sun8i_r40_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, - .enable_pmu_unk1 = true, + .hci_phy_ctl_clear = PHY_CTL_H3_SIDDQ, .phy0_dual_route = true, }; @@ -945,7 +941,16 @@ static const struct sun4i_usb_phy_cfg sun8i_v3s_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, - .enable_pmu_unk1 = true, + .hci_phy_ctl_clear = PHY_CTL_H3_SIDDQ, + .phy0_dual_route = true, +}; + +static const struct sun4i_usb_phy_cfg sun20i_d1_cfg = { + .num_phys = 2, + .type = sun50i_h6_phy, + .phyctl_offset = REG_PHYCTL_A33, + .dedicated_clocks = true, + .hci_phy_ctl_clear = PHY_CTL_SIDDQ, .phy0_dual_route = true, }; @@ -955,14 +960,13 @@ static const struct sun4i_usb_phy_cfg sun50i_a64_cfg = { .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, - .enable_pmu_unk1 = true, + .hci_phy_ctl_clear = PHY_CTL_H3_SIDDQ, .phy0_dual_route = true, }; static const struct sun4i_usb_phy_cfg sun50i_h6_cfg = { .num_phys = 4, .type = sun50i_h6_phy, - .disc_thresh = 3, .phyctl_offset = REG_PHYCTL_A33, .dedicated_clocks = true, .phy0_dual_route = true, @@ -980,6 +984,7 @@ static const struct of_device_id sun4i_usb_phy_of_match[] = { { .compatible = "allwinner,sun8i-h3-usb-phy", .data = &sun8i_h3_cfg }, { .compatible = "allwinner,sun8i-r40-usb-phy", .data = &sun8i_r40_cfg }, { .compatible = "allwinner,sun8i-v3s-usb-phy", .data = &sun8i_v3s_cfg }, + { .compatible = "allwinner,sun20i-d1-usb-phy", .data = &sun20i_d1_cfg }, { .compatible = "allwinner,sun50i-a64-usb-phy", .data = &sun50i_a64_cfg}, { .compatible = "allwinner,sun50i-h6-usb-phy", .data = &sun50i_h6_cfg }, diff --git a/drivers/phy/amlogic/phy-meson-gxl-usb2.c b/drivers/phy/amlogic/phy-meson-gxl-usb2.c index 2b3c0d730f20..db17c3448bfe 100644 --- a/drivers/phy/amlogic/phy-meson-gxl-usb2.c +++ b/drivers/phy/amlogic/phy-meson-gxl-usb2.c @@ -114,8 +114,10 @@ static int phy_meson_gxl_usb2_init(struct phy *phy) return ret; ret = clk_prepare_enable(priv->clk); - if (ret) + if (ret) { + reset_control_rearm(priv->reset); return ret; + } return 0; } @@ -125,6 +127,7 @@ static int phy_meson_gxl_usb2_exit(struct phy *phy) struct phy_meson_gxl_usb2_priv *priv = phy_get_drvdata(phy); clk_disable_unprepare(priv->clk); + reset_control_rearm(priv->reset); return 0; } diff --git a/drivers/phy/amlogic/phy-meson8b-usb2.c b/drivers/phy/amlogic/phy-meson8b-usb2.c index cf10bed40528..dd96763911b8 100644 --- a/drivers/phy/amlogic/phy-meson8b-usb2.c +++ b/drivers/phy/amlogic/phy-meson8b-usb2.c @@ -154,6 +154,7 @@ static int phy_meson8b_usb2_power_on(struct phy *phy) ret = clk_prepare_enable(priv->clk_usb_general); if (ret) { dev_err(&phy->dev, "Failed to enable USB general clock\n"); + reset_control_rearm(priv->reset); return ret; } @@ -161,6 +162,7 @@ static int phy_meson8b_usb2_power_on(struct phy *phy) if (ret) { dev_err(&phy->dev, "Failed to enable USB DDR clock\n"); clk_disable_unprepare(priv->clk_usb_general); + reset_control_rearm(priv->reset); return ret; } @@ -199,6 +201,7 @@ static int phy_meson8b_usb2_power_on(struct phy *phy) dev_warn(&phy->dev, "USB ID detect failed!\n"); clk_disable_unprepare(priv->clk_usb); clk_disable_unprepare(priv->clk_usb_general); + reset_control_rearm(priv->reset); return -EINVAL; } } @@ -218,6 +221,7 @@ static int phy_meson8b_usb2_power_off(struct phy *phy) clk_disable_unprepare(priv->clk_usb); clk_disable_unprepare(priv->clk_usb_general); + reset_control_rearm(priv->reset); /* power off the PHY by putting it into reset mode */ regmap_update_bits(priv->regmap, REG_CTRL, REG_CTRL_POWER_ON_RESET, @@ -265,8 +269,9 @@ static int phy_meson8b_usb2_probe(struct platform_device *pdev) return PTR_ERR(priv->clk_usb); priv->reset = devm_reset_control_get_optional_shared(&pdev->dev, NULL); - if (PTR_ERR(priv->reset) == -EPROBE_DEFER) - return PTR_ERR(priv->reset); + if (IS_ERR(priv->reset)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->reset), + "Failed to get the reset line"); priv->dr_mode = of_usb_get_dr_mode_by_phy(pdev->dev.of_node, -1); if (priv->dr_mode == USB_DR_MODE_UNKNOWN) { diff --git a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c index e63457e145c7..d2524b70ea16 100644 --- a/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c +++ b/drivers/phy/broadcom/phy-brcm-usb-init-synopsys.c @@ -47,6 +47,8 @@ #define USB_CTRL_USB_PM_SOFT_RESET_MASK 0x40000000 #define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK 0x00800000 #define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK 0x00400000 +#define USB_CTRL_USB_PM_XHC_PME_EN_MASK 0x00000010 +#define USB_CTRL_USB_PM_XHC_S2_CLK_SWITCH_EN_MASK 0x00000008 #define USB_CTRL_USB_PM_STATUS 0x08 #define USB_CTRL_USB_DEVICE_CTL1 0x10 #define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK 0x00000003 @@ -190,10 +192,6 @@ static void usb_init_common(struct brcm_usb_init_params *params) pr_debug("%s\n", __func__); - USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN); - /* 1 millisecond - for USB clocks to settle down */ - usleep_range(1000, 2000); - if (USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE)) { reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE); @@ -222,6 +220,17 @@ static void usb_wake_enable_7211b0(struct brcm_usb_init_params *params, USB_CTRL_UNSET(ctrl, CTLR_CSHCR, ctl_pme_en); } +static void usb_wake_enable_7216(struct brcm_usb_init_params *params, + bool enable) +{ + void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; + + if (enable) + USB_CTRL_SET(ctrl, USB_PM, XHC_PME_EN); + else + USB_CTRL_UNSET(ctrl, USB_PM, XHC_PME_EN); +} + static void usb_init_common_7211b0(struct brcm_usb_init_params *params) { void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; @@ -295,6 +304,20 @@ static void usb_init_common_7211b0(struct brcm_usb_init_params *params) usb2_eye_fix_7211b0(params); } +static void usb_init_common_7216(struct brcm_usb_init_params *params) +{ + void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; + + USB_CTRL_UNSET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN); + USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN); + + /* 1 millisecond - for USB clocks to settle down */ + usleep_range(1000, 2000); + + usb_wake_enable_7216(params, false); + usb_init_common(params); +} + static void usb_init_xhci(struct brcm_usb_init_params *params) { pr_debug("%s\n", __func__); @@ -302,14 +325,20 @@ static void usb_init_xhci(struct brcm_usb_init_params *params) xhci_soft_reset(params, 0); } -static void usb_uninit_common(struct brcm_usb_init_params *params) +static void usb_uninit_common_7216(struct brcm_usb_init_params *params) { void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; pr_debug("%s\n", __func__); - USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN); + if (!params->wake_enabled) { + USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN); + /* Switch to using slower clock during suspend to save power */ + USB_CTRL_SET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN); + } else { + usb_wake_enable_7216(params, true); + } } static void usb_uninit_common_7211b0(struct brcm_usb_init_params *params) @@ -371,9 +400,9 @@ static void usb_set_dual_select(struct brcm_usb_init_params *params, int mode) static const struct brcm_usb_init_ops bcm7216_ops = { .init_ipp = usb_init_ipp, - .init_common = usb_init_common, + .init_common = usb_init_common_7216, .init_xhci = usb_init_xhci, - .uninit_common = usb_uninit_common, + .uninit_common = usb_uninit_common_7216, .uninit_xhci = usb_uninit_xhci, .get_dual_select = usb_get_dual_select, .set_dual_select = usb_set_dual_select, @@ -396,6 +425,7 @@ void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params) params->family_name = "7216"; params->ops = &bcm7216_ops; + params->suspend_with_clocks = true; } void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params) diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.c b/drivers/phy/broadcom/phy-brcm-usb-init.c index 9391ab42a12b..dd0f66288fbd 100644 --- a/drivers/phy/broadcom/phy-brcm-usb-init.c +++ b/drivers/phy/broadcom/phy-brcm-usb-init.c @@ -79,6 +79,7 @@ enum brcm_family_type { BRCM_FAMILY_3390A0, + BRCM_FAMILY_4908, BRCM_FAMILY_7250B0, BRCM_FAMILY_7271A0, BRCM_FAMILY_7364A0, @@ -96,6 +97,7 @@ enum brcm_family_type { static const char *family_names[BRCM_FAMILY_COUNT] = { USB_BRCM_FAMILY(3390A0), + USB_BRCM_FAMILY(4908), USB_BRCM_FAMILY(7250B0), USB_BRCM_FAMILY(7271A0), USB_BRCM_FAMILY(7364A0), @@ -203,6 +205,27 @@ usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = { USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK, ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */ }, + /* 4908 */ + [BRCM_FAMILY_4908] = { + 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */ + 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */ + 0, /* USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */ + 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */ + 0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */ + 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */ + 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */ + USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK, + USB_CTRL_USB_PM_USB_PWRDN_MASK, + 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */ + 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */ + 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */ + 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */ + 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */ + 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */ + 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */ + 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK */ + 0, /* USB_CTRL_SETUP ENDIAN bits */ + }, /* 7250b0 */ [BRCM_FAMILY_7250B0] = { USB_CTRL_SETUP_SCB1_EN_MASK, @@ -559,6 +582,7 @@ static void brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params *params) */ switch (params->selected_family) { case BRCM_FAMILY_3390A0: + case BRCM_FAMILY_4908: case BRCM_FAMILY_7250B0: case BRCM_FAMILY_7366C0: case BRCM_FAMILY_74371A0: @@ -1004,6 +1028,18 @@ static const struct brcm_usb_init_ops bcm7445_ops = { .set_dual_select = usb_set_dual_select, }; +void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params) +{ + int fam; + + fam = BRCM_FAMILY_4908; + params->selected_family = fam; + params->usb_reg_bits_map = + &usb_reg_bits_map_table[fam][0]; + params->family_name = family_names[fam]; + params->ops = &bcm7445_ops; +} + void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params) { int fam; diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.h b/drivers/phy/broadcom/phy-brcm-usb-init.h index a39f30fa2e99..1ccb5ddab865 100644 --- a/drivers/phy/broadcom/phy-brcm-usb-init.h +++ b/drivers/phy/broadcom/phy-brcm-usb-init.h @@ -64,6 +64,7 @@ struct brcm_usb_init_params { bool suspend_with_clocks; }; +void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params); void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params); void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params); void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params); diff --git a/drivers/phy/broadcom/phy-brcm-usb.c b/drivers/phy/broadcom/phy-brcm-usb.c index 0f1deb6e0eab..2cb3779fcdf8 100644 --- a/drivers/phy/broadcom/phy-brcm-usb.c +++ b/drivers/phy/broadcom/phy-brcm-usb.c @@ -283,6 +283,15 @@ static const struct attribute_group brcm_usb_phy_group = { .attrs = brcm_usb_phy_attrs, }; +static const struct match_chip_info chip_info_4908 = { + .init_func = &brcm_usb_dvr_init_4908, + .required_regs = { + BRCM_REGS_CTRL, + BRCM_REGS_XHCI_EC, + -1, + }, +}; + static const struct match_chip_info chip_info_7216 = { .init_func = &brcm_usb_dvr_init_7216, .required_regs = { @@ -318,7 +327,7 @@ static const struct match_chip_info chip_info_7445 = { static const struct of_device_id brcm_usb_dt_ids[] = { { .compatible = "brcm,bcm4908-usb-phy", - .data = &chip_info_7445, + .data = &chip_info_4908, }, { .compatible = "brcm,bcm7216-usb-phy", diff --git a/drivers/phy/cadence/Kconfig b/drivers/phy/cadence/Kconfig index a62910ff5591..1adde2d99ae7 100644 --- a/drivers/phy/cadence/Kconfig +++ b/drivers/phy/cadence/Kconfig @@ -22,6 +22,14 @@ config PHY_CADENCE_DPHY system. If M is selected, the module will be called cdns-dphy. +config PHY_CADENCE_DPHY_RX + tristate "Cadence D-PHY Rx Support" + depends on HAS_IOMEM && OF + select GENERIC_PHY + select GENERIC_PHY_MIPI_DPHY + help + Support for Cadence D-PHY in Rx configuration. + config PHY_CADENCE_SIERRA tristate "Cadence Sierra PHY Driver" depends on OF && HAS_IOMEM && RESET_CONTROLLER diff --git a/drivers/phy/cadence/Makefile b/drivers/phy/cadence/Makefile index 26e16bd34efe..e17f035ddece 100644 --- a/drivers/phy/cadence/Makefile +++ b/drivers/phy/cadence/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_PHY_CADENCE_TORRENT) += phy-cadence-torrent.o obj-$(CONFIG_PHY_CADENCE_DPHY) += cdns-dphy.o +obj-$(CONFIG_PHY_CADENCE_DPHY_RX) += cdns-dphy-rx.o obj-$(CONFIG_PHY_CADENCE_SIERRA) += phy-cadence-sierra.o obj-$(CONFIG_PHY_CADENCE_SALVO) += phy-cadence-salvo.o diff --git a/drivers/phy/cadence/cdns-dphy-rx.c b/drivers/phy/cadence/cdns-dphy-rx.c new file mode 100644 index 000000000000..572c70089a94 --- /dev/null +++ b/drivers/phy/cadence/cdns-dphy-rx.c @@ -0,0 +1,255 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/ + */ + +#include <linux/bitfield.h> +#include <linux/bitops.h> +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/module.h> +#include <linux/phy/phy.h> +#include <linux/phy/phy-mipi-dphy.h> +#include <linux/platform_device.h> + +#define DPHY_PMA_CMN(reg) (reg) +#define DPHY_PCS(reg) (0xb00 + (reg)) +#define DPHY_ISO(reg) (0xc00 + (reg)) + +#define DPHY_CMN_SSM DPHY_PMA_CMN(0x20) +#define DPHY_CMN_RX_MODE_EN BIT(10) +#define DPHY_CMN_RX_BANDGAP_TIMER_MASK GENMASK(8, 1) +#define DPHY_CMN_SSM_EN BIT(0) + +#define DPHY_CMN_RX_BANDGAP_TIMER 0x14 + +#define DPHY_BAND_CFG DPHY_PCS(0x0) +#define DPHY_BAND_CFG_RIGHT_BAND GENMASK(9, 5) +#define DPHY_BAND_CFG_LEFT_BAND GENMASK(4, 0) + +#define DPHY_POWER_ISLAND_EN_DATA DPHY_PCS(0x8) +#define DPHY_POWER_ISLAND_EN_DATA_VAL 0xaaaaaaaa + +#define DPHY_POWER_ISLAND_EN_CLK DPHY_PCS(0xc) +#define DPHY_POWER_ISLAND_EN_CLK_VAL 0xaa + +#define DPHY_ISO_CL_CTRL_L DPHY_ISO(0x10) +#define DPHY_ISO_DL_CTRL_L0 DPHY_ISO(0x14) +#define DPHY_ISO_DL_CTRL_L1 DPHY_ISO(0x20) +#define DPHY_ISO_DL_CTRL_L2 DPHY_ISO(0x30) +#define DPHY_ISO_DL_CTRL_L3 DPHY_ISO(0x3c) + +#define DPHY_ISO_LANE_READY_BIT 0 +#define DPHY_ISO_LANE_READY_TIMEOUT_MS 100UL + +#define DPHY_LANES_MIN 1 +#define DPHY_LANES_MAX 4 + +struct cdns_dphy_rx { + void __iomem *regs; + struct device *dev; + struct phy *phy; +}; + +struct cdns_dphy_rx_band { + /* Rates are in Mbps. */ + unsigned int min_rate; + unsigned int max_rate; +}; + +/* Order of bands is important since the index is the band number. */ +static const struct cdns_dphy_rx_band bands[] = { + { 80, 100 }, { 100, 120 }, { 120, 160 }, { 160, 200 }, { 200, 240 }, + { 240, 280 }, { 280, 320 }, { 320, 360 }, { 360, 400 }, { 400, 480 }, + { 480, 560 }, { 560, 640 }, { 640, 720 }, { 720, 800 }, { 800, 880 }, + { 880, 1040 }, { 1040, 1200 }, { 1200, 1350 }, { 1350, 1500 }, + { 1500, 1750 }, { 1750, 2000 }, { 2000, 2250 }, { 2250, 2500 } +}; + +static int cdns_dphy_rx_power_on(struct phy *phy) +{ + struct cdns_dphy_rx *dphy = phy_get_drvdata(phy); + + /* Start RX state machine. */ + writel(DPHY_CMN_SSM_EN | DPHY_CMN_RX_MODE_EN | + FIELD_PREP(DPHY_CMN_RX_BANDGAP_TIMER_MASK, + DPHY_CMN_RX_BANDGAP_TIMER), + dphy->regs + DPHY_CMN_SSM); + + return 0; +} + +static int cdns_dphy_rx_power_off(struct phy *phy) +{ + struct cdns_dphy_rx *dphy = phy_get_drvdata(phy); + + writel(0, dphy->regs + DPHY_CMN_SSM); + + return 0; +} + +static int cdns_dphy_rx_get_band_ctrl(unsigned long hs_clk_rate) +{ + unsigned int rate, i; + + rate = hs_clk_rate / 1000000UL; + /* Since CSI-2 clock is DDR, the bit rate is twice the clock rate. */ + rate *= 2; + + if (rate < bands[0].min_rate) + return -EOPNOTSUPP; + + for (i = 0; i < ARRAY_SIZE(bands); i++) + if (rate < bands[i].max_rate) + return i; + + return -EOPNOTSUPP; +} + +static inline int cdns_dphy_rx_wait_for_bit(void __iomem *addr, + unsigned int bit) +{ + u32 val; + + return readl_relaxed_poll_timeout(addr, val, val & BIT(bit), 10, + DPHY_ISO_LANE_READY_TIMEOUT_MS * 1000); +} + +static int cdns_dphy_rx_wait_lane_ready(struct cdns_dphy_rx *dphy, + unsigned int lanes) +{ + static const u32 data_lane_ctrl[] = {DPHY_ISO_DL_CTRL_L0, + DPHY_ISO_DL_CTRL_L1, + DPHY_ISO_DL_CTRL_L2, + DPHY_ISO_DL_CTRL_L3}; + void __iomem *reg = dphy->regs; + unsigned int i; + int ret; + + /* Clock lane */ + ret = cdns_dphy_rx_wait_for_bit(reg + DPHY_ISO_CL_CTRL_L, + DPHY_ISO_LANE_READY_BIT); + if (ret) + return ret; + + for (i = 0; i < lanes; i++) { + ret = cdns_dphy_rx_wait_for_bit(reg + data_lane_ctrl[i], + DPHY_ISO_LANE_READY_BIT); + if (ret) + return ret; + } + + return 0; +} + +static int cdns_dphy_rx_configure(struct phy *phy, + union phy_configure_opts *opts) +{ + struct cdns_dphy_rx *dphy = phy_get_drvdata(phy); + unsigned int reg, lanes = opts->mipi_dphy.lanes; + int band_ctrl, ret; + + /* Data lanes. Minimum one lane is mandatory. */ + if (lanes < DPHY_LANES_MIN || lanes > DPHY_LANES_MAX) + return -EINVAL; + + band_ctrl = cdns_dphy_rx_get_band_ctrl(opts->mipi_dphy.hs_clk_rate); + if (band_ctrl < 0) + return band_ctrl; + + reg = FIELD_PREP(DPHY_BAND_CFG_LEFT_BAND, band_ctrl) | + FIELD_PREP(DPHY_BAND_CFG_RIGHT_BAND, band_ctrl); + writel(reg, dphy->regs + DPHY_BAND_CFG); + + /* + * Set the required power island phase 2 time. This is mandated by DPHY + * specs. + */ + reg = DPHY_POWER_ISLAND_EN_DATA_VAL; + writel(reg, dphy->regs + DPHY_POWER_ISLAND_EN_DATA); + reg = DPHY_POWER_ISLAND_EN_CLK_VAL; + writel(reg, dphy->regs + DPHY_POWER_ISLAND_EN_CLK); + + ret = cdns_dphy_rx_wait_lane_ready(dphy, lanes); + if (ret) { + dev_err(dphy->dev, "DPHY wait for lane ready timeout\n"); + return ret; + } + + return 0; +} + +static int cdns_dphy_rx_validate(struct phy *phy, enum phy_mode mode, + int submode, union phy_configure_opts *opts) +{ + int ret; + + if (mode != PHY_MODE_MIPI_DPHY) + return -EINVAL; + + ret = cdns_dphy_rx_get_band_ctrl(opts->mipi_dphy.hs_clk_rate); + if (ret < 0) + return ret; + + return phy_mipi_dphy_config_validate(&opts->mipi_dphy); +} + +static const struct phy_ops cdns_dphy_rx_ops = { + .power_on = cdns_dphy_rx_power_on, + .power_off = cdns_dphy_rx_power_off, + .configure = cdns_dphy_rx_configure, + .validate = cdns_dphy_rx_validate, +}; + +static int cdns_dphy_rx_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct phy_provider *provider; + struct cdns_dphy_rx *dphy; + + dphy = devm_kzalloc(dev, sizeof(*dphy), GFP_KERNEL); + if (!dphy) + return -ENOMEM; + + dev_set_drvdata(dev, dphy); + dphy->dev = dev; + + dphy->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(dphy->regs)) + return PTR_ERR(dphy->regs); + + dphy->phy = devm_phy_create(dev, NULL, &cdns_dphy_rx_ops); + if (IS_ERR(dphy->phy)) { + dev_err(dev, "Failed to create PHY: %ld\n", PTR_ERR(dphy->phy)); + return PTR_ERR(dphy->phy); + } + + phy_set_drvdata(dphy->phy, dphy); + provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + if (IS_ERR(provider)) { + dev_err(dev, "Failed to register PHY provider: %ld\n", + PTR_ERR(provider)); + return PTR_ERR(provider); + } + + return 0; +} + +static const struct of_device_id cdns_dphy_rx_of_match[] = { + { .compatible = "cdns,dphy-rx" }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, cdns_dphy_rx_of_match); + +static struct platform_driver cdns_dphy_rx_platform_driver = { + .probe = cdns_dphy_rx_probe, + .driver = { + .name = "cdns-mipi-dphy-rx", + .of_match_table = cdns_dphy_rx_of_match, + }, +}; +module_platform_driver(cdns_dphy_rx_platform_driver); + +MODULE_AUTHOR("Pratyush Yadav <p.yadav@ti.com>"); +MODULE_DESCRIPTION("Cadence D-PHY Rx Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/phy/cadence/phy-cadence-salvo.c b/drivers/phy/cadence/phy-cadence-salvo.c index 51c0b98f5fd7..e569f5f67578 100644 --- a/drivers/phy/cadence/phy-cadence-salvo.c +++ b/drivers/phy/cadence/phy-cadence-salvo.c @@ -263,14 +263,9 @@ static int cdns_salvo_phy_probe(struct platform_device *pdev) struct phy_provider *phy_provider; struct device *dev = &pdev->dev; struct cdns_salvo_phy *salvo_phy; - const struct of_device_id *match; struct cdns_salvo_data *data; - match = of_match_device(cdns_salvo_phy_of_match, dev); - if (!match) - return -EINVAL; - - data = (struct cdns_salvo_data *)match->data; + data = (struct cdns_salvo_data *)of_device_get_match_data(dev); salvo_phy = devm_kzalloc(dev, sizeof(*salvo_phy), GFP_KERNEL); if (!salvo_phy) return -ENOMEM; diff --git a/drivers/phy/cadence/phy-cadence-sierra.c b/drivers/phy/cadence/phy-cadence-sierra.c index e265647e29a2..6b917f7bddbe 100644 --- a/drivers/phy/cadence/phy-cadence-sierra.c +++ b/drivers/phy/cadence/phy-cadence-sierra.c @@ -370,6 +370,7 @@ struct cdns_sierra_phy { int nsubnodes; u32 num_lanes; bool autoconf; + int already_configured; struct clk_onecell_data clk_data; struct clk *output_clks[CDNS_SIERRA_OUTPUT_CLOCKS]; }; @@ -517,7 +518,7 @@ static int cdns_sierra_phy_init(struct phy *gphy) int i, j; /* Initialise the PHY registers, unless auto configured */ - if (phy->autoconf || phy->nsubnodes > 1) + if (phy->autoconf || phy->already_configured || phy->nsubnodes > 1) return 0; clk_set_rate(phy->input_clks[CMN_REFCLK_DIG_DIV], 25000000); @@ -646,6 +647,18 @@ static const struct phy_ops ops = { .owner = THIS_MODULE, }; +static int cdns_sierra_noop_phy_on(struct phy *gphy) +{ + usleep_range(5000, 10000); + + return 0; +} + +static const struct phy_ops noop_ops = { + .power_on = cdns_sierra_noop_phy_on, + .owner = THIS_MODULE, +}; + static u8 cdns_sierra_pll_mux_get_parent(struct clk_hw *hw) { struct cdns_sierra_pll_mux *mux = to_cdns_sierra_pll_mux(hw); @@ -1118,13 +1131,6 @@ static int cdns_sierra_phy_get_clocks(struct cdns_sierra_phy *sp, struct clk *clk; int ret; - clk = devm_clk_get_optional(dev, "phy_clk"); - if (IS_ERR(clk)) { - dev_err(dev, "failed to get clock phy_clk\n"); - return PTR_ERR(clk); - } - sp->input_clks[PHY_CLK] = clk; - clk = devm_clk_get_optional(dev, "cmn_refclk_dig_div"); if (IS_ERR(clk)) { dev_err(dev, "cmn_refclk_dig_div clock not found\n"); @@ -1160,17 +1166,33 @@ static int cdns_sierra_phy_get_clocks(struct cdns_sierra_phy *sp, return 0; } -static int cdns_sierra_phy_enable_clocks(struct cdns_sierra_phy *sp) +static int cdns_sierra_phy_clk(struct cdns_sierra_phy *sp) { + struct device *dev = sp->dev; + struct clk *clk; int ret; + clk = devm_clk_get_optional(dev, "phy_clk"); + if (IS_ERR(clk)) { + dev_err(dev, "failed to get clock phy_clk\n"); + return PTR_ERR(clk); + } + sp->input_clks[PHY_CLK] = clk; + ret = clk_prepare_enable(sp->input_clks[PHY_CLK]); if (ret) return ret; + return 0; +} + +static int cdns_sierra_phy_enable_clocks(struct cdns_sierra_phy *sp) +{ + int ret; + ret = clk_prepare_enable(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]); if (ret) - goto err_pll_cmnlc; + return ret; ret = clk_prepare_enable(sp->output_clks[CDNS_SIERRA_PLL_CMNLC1]); if (ret) @@ -1181,9 +1203,6 @@ static int cdns_sierra_phy_enable_clocks(struct cdns_sierra_phy *sp) err_pll_cmnlc1: clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]); -err_pll_cmnlc: - clk_disable_unprepare(sp->input_clks[PHY_CLK]); - return ret; } @@ -1191,7 +1210,8 @@ static void cdns_sierra_phy_disable_clocks(struct cdns_sierra_phy *sp) { clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC1]); clk_disable_unprepare(sp->output_clks[CDNS_SIERRA_PLL_CMNLC]); - clk_disable_unprepare(sp->input_clks[PHY_CLK]); + if (!sp->already_configured) + clk_disable_unprepare(sp->input_clks[PHY_CLK]); } static int cdns_sierra_phy_get_resets(struct cdns_sierra_phy *sp, @@ -1382,22 +1402,30 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev) if (ret) return ret; - ret = cdns_sierra_phy_get_resets(sp, dev); - if (ret) - goto unregister_clk; - ret = cdns_sierra_phy_enable_clocks(sp); if (ret) goto unregister_clk; - /* Enable APB */ - reset_control_deassert(sp->apb_rst); + regmap_field_read(sp->pma_cmn_ready, &sp->already_configured); + + if (!sp->already_configured) { + ret = cdns_sierra_phy_clk(sp); + if (ret) + goto clk_disable; + + ret = cdns_sierra_phy_get_resets(sp, dev); + if (ret) + goto clk_disable; + + /* Enable APB */ + reset_control_deassert(sp->apb_rst); + } /* Check that PHY is present */ regmap_field_read(sp->macro_id_type, &id_value); if (sp->init_data->id_value != id_value) { ret = -EINVAL; - goto clk_disable; + goto ctrl_assert; } sp->autoconf = of_property_read_bool(dn, "cdns,autoconf"); @@ -1433,8 +1461,10 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev) sp->num_lanes += sp->phys[node].num_lanes; - gphy = devm_phy_create(dev, child, &ops); - + if (!sp->already_configured) + gphy = devm_phy_create(dev, child, &ops); + else + gphy = devm_phy_create(dev, child, &noop_ops); if (IS_ERR(gphy)) { ret = PTR_ERR(gphy); of_node_put(child); @@ -1455,7 +1485,7 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev) } /* If more than one subnode, configure the PHY as multilink */ - if (!sp->autoconf && sp->nsubnodes > 1) { + if (!sp->already_configured && !sp->autoconf && sp->nsubnodes > 1) { ret = cdns_sierra_phy_configure_multilink(sp); if (ret) goto put_control; @@ -1473,9 +1503,11 @@ static int cdns_sierra_phy_probe(struct platform_device *pdev) put_control: while (--node >= 0) reset_control_put(sp->phys[node].lnk_rst); +ctrl_assert: + if (!sp->already_configured) + reset_control_assert(sp->apb_rst); clk_disable: cdns_sierra_phy_disable_clocks(sp); - reset_control_assert(sp->apb_rst); unregister_clk: cdns_sierra_clk_unregister(sp); return ret; diff --git a/drivers/phy/freescale/Kconfig b/drivers/phy/freescale/Kconfig index c3669c28ea9f..856cbec7057d 100644 --- a/drivers/phy/freescale/Kconfig +++ b/drivers/phy/freescale/Kconfig @@ -1,4 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only + +if (ARCH_MXC && ARM64) || COMPILE_TEST + config PHY_FSL_IMX8MQ_USB tristate "Freescale i.MX8M USB3 PHY" depends on OF && HAS_IOMEM @@ -22,3 +25,5 @@ config PHY_FSL_IMX8M_PCIE help Enable this to add support for the PCIE PHY as found on i.MX8M family of SOCs. + +endif diff --git a/drivers/phy/freescale/phy-fsl-imx8m-pcie.c b/drivers/phy/freescale/phy-fsl-imx8m-pcie.c index 04b1aafb29f4..f1eb03ba25d6 100644 --- a/drivers/phy/freescale/phy-fsl-imx8m-pcie.c +++ b/drivers/phy/freescale/phy-fsl-imx8m-pcie.c @@ -5,9 +5,9 @@ #include <linux/bitfield.h> #include <linux/clk.h> +#include <linux/delay.h> #include <linux/io.h> #include <linux/iopoll.h> -#include <linux/delay.h> #include <linux/mfd/syscon.h> #include <linux/mfd/syscon/imx7-iomuxc-gpr.h> #include <linux/module.h> @@ -15,6 +15,7 @@ #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/reset.h> + #include <dt-bindings/phy/phy-imx8-pcie.h> #define IMX8MM_PCIE_PHY_CMN_REG061 0x184 diff --git a/drivers/phy/marvell/phy-mvebu-a3700-comphy.c b/drivers/phy/marvell/phy-mvebu-a3700-comphy.c index 6781488cfc58..a4d7d9bd100d 100644 --- a/drivers/phy/marvell/phy-mvebu-a3700-comphy.c +++ b/drivers/phy/marvell/phy-mvebu-a3700-comphy.c @@ -5,12 +5,16 @@ * Authors: * Evan Wang <xswang@marvell.com> * Miquèl Raynal <miquel.raynal@bootlin.com> + * Pali Rohár <pali@kernel.org> + * Marek Behún <kabel@kernel.org> * * Structure inspired from phy-mvebu-cp110-comphy.c written by Antoine Tenart. - * SMC call initial support done by Grzegorz Jaszczyk. + * Comphy code from ARM Trusted Firmware ported by Pali Rohár <pali@kernel.org> + * and Marek Behún <kabel@kernel.org>. */ -#include <linux/arm-smccc.h> +#include <linux/bitfield.h> +#include <linux/clk.h> #include <linux/io.h> #include <linux/iopoll.h> #include <linux/mfd/syscon.h> @@ -18,109 +22,1118 @@ #include <linux/phy.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> +#include <linux/spinlock.h> -#define MVEBU_A3700_COMPHY_LANES 3 -#define MVEBU_A3700_COMPHY_PORTS 2 - -/* COMPHY Fast SMC function identifiers */ -#define COMPHY_SIP_POWER_ON 0x82000001 -#define COMPHY_SIP_POWER_OFF 0x82000002 -#define COMPHY_SIP_PLL_LOCK 0x82000003 - -#define COMPHY_FW_MODE_SATA 0x1 -#define COMPHY_FW_MODE_SGMII 0x2 -#define COMPHY_FW_MODE_2500BASEX 0x3 -#define COMPHY_FW_MODE_USB3H 0x4 -#define COMPHY_FW_MODE_USB3D 0x5 -#define COMPHY_FW_MODE_PCIE 0x6 -#define COMPHY_FW_MODE_USB3 0xa - -#define COMPHY_FW_SPEED_1_25G 0 /* SGMII 1G */ -#define COMPHY_FW_SPEED_2_5G 1 -#define COMPHY_FW_SPEED_3_125G 2 /* 2500BASE-X */ -#define COMPHY_FW_SPEED_5G 3 -#define COMPHY_FW_SPEED_MAX 0x3F - -#define COMPHY_FW_MODE(mode) ((mode) << 12) -#define COMPHY_FW_NET(mode, idx, speed) (COMPHY_FW_MODE(mode) | \ - ((idx) << 8) | \ - ((speed) << 2)) -#define COMPHY_FW_PCIE(mode, idx, speed, width) (COMPHY_FW_NET(mode, idx, speed) | \ - ((width) << 18)) +#define PLL_SET_DELAY_US 600 +#define COMPHY_PLL_SLEEP 1000 +#define COMPHY_PLL_TIMEOUT 150000 + +/* Comphy lane2 indirect access register offset */ +#define COMPHY_LANE2_INDIR_ADDR 0x0 +#define COMPHY_LANE2_INDIR_DATA 0x4 + +/* SATA and USB3 PHY offset compared to SATA PHY */ +#define COMPHY_LANE2_REGS_BASE 0x200 + +/* + * When accessing common PHY lane registers directly, we need to shift by 1, + * since the registers are 16-bit. + */ +#define COMPHY_LANE_REG_DIRECT(reg) (((reg) & 0x7FF) << 1) + +/* COMPHY registers */ +#define COMPHY_POWER_PLL_CTRL 0x01 +#define PU_IVREF_BIT BIT(15) +#define PU_PLL_BIT BIT(14) +#define PU_RX_BIT BIT(13) +#define PU_TX_BIT BIT(12) +#define PU_TX_INTP_BIT BIT(11) +#define PU_DFE_BIT BIT(10) +#define RESET_DTL_RX_BIT BIT(9) +#define PLL_LOCK_BIT BIT(8) +#define REF_FREF_SEL_MASK GENMASK(4, 0) +#define REF_FREF_SEL_SERDES_25MHZ FIELD_PREP(REF_FREF_SEL_MASK, 0x1) +#define REF_FREF_SEL_SERDES_40MHZ FIELD_PREP(REF_FREF_SEL_MASK, 0x3) +#define REF_FREF_SEL_SERDES_50MHZ FIELD_PREP(REF_FREF_SEL_MASK, 0x4) +#define REF_FREF_SEL_PCIE_USB3_25MHZ FIELD_PREP(REF_FREF_SEL_MASK, 0x2) +#define REF_FREF_SEL_PCIE_USB3_40MHZ FIELD_PREP(REF_FREF_SEL_MASK, 0x3) +#define COMPHY_MODE_MASK GENMASK(7, 5) +#define COMPHY_MODE_SATA FIELD_PREP(COMPHY_MODE_MASK, 0x0) +#define COMPHY_MODE_PCIE FIELD_PREP(COMPHY_MODE_MASK, 0x3) +#define COMPHY_MODE_SERDES FIELD_PREP(COMPHY_MODE_MASK, 0x4) +#define COMPHY_MODE_USB3 FIELD_PREP(COMPHY_MODE_MASK, 0x5) + +#define COMPHY_KVCO_CAL_CTRL 0x02 +#define USE_MAX_PLL_RATE_BIT BIT(12) +#define SPEED_PLL_MASK GENMASK(7, 2) +#define SPEED_PLL_VALUE_16 FIELD_PREP(SPEED_PLL_MASK, 0x10) + +#define COMPHY_DIG_LOOPBACK_EN 0x23 +#define SEL_DATA_WIDTH_MASK GENMASK(11, 10) +#define DATA_WIDTH_10BIT FIELD_PREP(SEL_DATA_WIDTH_MASK, 0x0) +#define DATA_WIDTH_20BIT FIELD_PREP(SEL_DATA_WIDTH_MASK, 0x1) +#define DATA_WIDTH_40BIT FIELD_PREP(SEL_DATA_WIDTH_MASK, 0x2) +#define PLL_READY_TX_BIT BIT(4) + +#define COMPHY_SYNC_PATTERN 0x24 +#define TXD_INVERT_BIT BIT(10) +#define RXD_INVERT_BIT BIT(11) + +#define COMPHY_SYNC_MASK_GEN 0x25 +#define PHY_GEN_MAX_MASK GENMASK(11, 10) +#define PHY_GEN_MAX_USB3_5G FIELD_PREP(PHY_GEN_MAX_MASK, 0x1) + +#define COMPHY_ISOLATION_CTRL 0x26 +#define PHY_ISOLATE_MODE BIT(15) + +#define COMPHY_GEN2_SET2 0x3e +#define GS2_TX_SSC_AMP_MASK GENMASK(15, 9) +#define GS2_TX_SSC_AMP_4128 FIELD_PREP(GS2_TX_SSC_AMP_MASK, 0x20) +#define GS2_VREG_RXTX_MAS_ISET_MASK GENMASK(8, 7) +#define GS2_VREG_RXTX_MAS_ISET_60U FIELD_PREP(GS2_VREG_RXTX_MAS_ISET_MASK,\ + 0x0) +#define GS2_VREG_RXTX_MAS_ISET_80U FIELD_PREP(GS2_VREG_RXTX_MAS_ISET_MASK,\ + 0x1) +#define GS2_VREG_RXTX_MAS_ISET_100U FIELD_PREP(GS2_VREG_RXTX_MAS_ISET_MASK,\ + 0x2) +#define GS2_VREG_RXTX_MAS_ISET_120U FIELD_PREP(GS2_VREG_RXTX_MAS_ISET_MASK,\ + 0x3) +#define GS2_RSVD_6_0_MASK GENMASK(6, 0) + +#define COMPHY_GEN3_SET2 0x3f + +#define COMPHY_IDLE_SYNC_EN 0x48 +#define IDLE_SYNC_EN BIT(12) + +#define COMPHY_MISC_CTRL0 0x4F +#define CLK100M_125M_EN BIT(4) +#define TXDCLK_2X_SEL BIT(6) +#define CLK500M_EN BIT(7) +#define PHY_REF_CLK_SEL BIT(10) + +#define COMPHY_SFT_RESET 0x52 +#define SFT_RST BIT(9) +#define SFT_RST_NO_REG BIT(10) + +#define COMPHY_MISC_CTRL1 0x73 +#define SEL_BITS_PCIE_FORCE BIT(15) + +#define COMPHY_GEN2_SET3 0x112 +#define GS3_FFE_CAP_SEL_MASK GENMASK(3, 0) +#define GS3_FFE_CAP_SEL_VALUE FIELD_PREP(GS3_FFE_CAP_SEL_MASK, 0xF) + +/* PIPE registers */ +#define COMPHY_PIPE_LANE_CFG0 0x180 +#define PRD_TXDEEMPH0_MASK BIT(0) +#define PRD_TXMARGIN_MASK GENMASK(3, 1) +#define PRD_TXSWING_MASK BIT(4) +#define CFG_TX_ALIGN_POS_MASK GENMASK(8, 5) + +#define COMPHY_PIPE_LANE_CFG1 0x181 +#define PRD_TXDEEMPH1_MASK BIT(15) +#define USE_MAX_PLL_RATE_EN BIT(9) +#define TX_DET_RX_MODE BIT(6) +#define GEN2_TX_DATA_DLY_MASK GENMASK(4, 3) +#define GEN2_TX_DATA_DLY_DEFT FIELD_PREP(GEN2_TX_DATA_DLY_MASK, 2) +#define TX_ELEC_IDLE_MODE_EN BIT(0) + +#define COMPHY_PIPE_LANE_STAT1 0x183 +#define TXDCLK_PCLK_EN BIT(0) + +#define COMPHY_PIPE_LANE_CFG4 0x188 +#define SPREAD_SPECTRUM_CLK_EN BIT(7) + +#define COMPHY_PIPE_RST_CLK_CTRL 0x1C1 +#define PIPE_SOFT_RESET BIT(0) +#define PIPE_REG_RESET BIT(1) +#define MODE_CORE_CLK_FREQ_SEL BIT(9) +#define MODE_PIPE_WIDTH_32 BIT(3) +#define MODE_REFDIV_MASK GENMASK(5, 4) +#define MODE_REFDIV_BY_4 FIELD_PREP(MODE_REFDIV_MASK, 0x2) + +#define COMPHY_PIPE_TEST_MODE_CTRL 0x1C2 +#define MODE_MARGIN_OVERRIDE BIT(2) + +#define COMPHY_PIPE_CLK_SRC_LO 0x1C3 +#define MODE_CLK_SRC BIT(0) +#define BUNDLE_PERIOD_SEL BIT(1) +#define BUNDLE_PERIOD_SCALE_MASK GENMASK(3, 2) +#define BUNDLE_SAMPLE_CTRL BIT(4) +#define PLL_READY_DLY_MASK GENMASK(7, 5) +#define CFG_SEL_20B BIT(15) + +#define COMPHY_PIPE_PWR_MGM_TIM1 0x1D0 +#define CFG_PM_OSCCLK_WAIT_MASK GENMASK(15, 12) +#define CFG_PM_RXDEN_WAIT_MASK GENMASK(11, 8) +#define CFG_PM_RXDEN_WAIT_1_UNIT FIELD_PREP(CFG_PM_RXDEN_WAIT_MASK, 0x1) +#define CFG_PM_RXDLOZ_WAIT_MASK GENMASK(7, 0) +#define CFG_PM_RXDLOZ_WAIT_7_UNIT FIELD_PREP(CFG_PM_RXDLOZ_WAIT_MASK, 0x7) +#define CFG_PM_RXDLOZ_WAIT_12_UNIT FIELD_PREP(CFG_PM_RXDLOZ_WAIT_MASK, 0xC) + +/* + * This register is not from PHY lane register space. It only exists in the + * indirect register space, before the actual PHY lane 2 registers. So the + * offset is absolute, not relative to COMPHY_LANE2_REGS_BASE. + * It is used only for SATA PHY initialization. + */ +#define COMPHY_RESERVED_REG 0x0E +#define PHYCTRL_FRM_PIN_BIT BIT(13) + +/* South Bridge PHY Configuration Registers */ +#define COMPHY_PHY_REG(lane, reg) (((1 - (lane)) * 0x28) + ((reg) & 0x3f)) + +/* + * lane0: USB3/GbE1 PHY Configuration 1 + * lane1: PCIe/GbE0 PHY Configuration 1 + * (used only by SGMII code) + */ +#define COMPHY_PHY_CFG1 0x0 +#define PIN_PU_IVREF_BIT BIT(1) +#define PIN_RESET_CORE_BIT BIT(11) +#define PIN_RESET_COMPHY_BIT BIT(12) +#define PIN_PU_PLL_BIT BIT(16) +#define PIN_PU_RX_BIT BIT(17) +#define PIN_PU_TX_BIT BIT(18) +#define PIN_TX_IDLE_BIT BIT(19) +#define GEN_RX_SEL_MASK GENMASK(25, 22) +#define GEN_RX_SEL_VALUE(val) FIELD_PREP(GEN_RX_SEL_MASK, (val)) +#define GEN_TX_SEL_MASK GENMASK(29, 26) +#define GEN_TX_SEL_VALUE(val) FIELD_PREP(GEN_TX_SEL_MASK, (val)) +#define SERDES_SPEED_1_25_G 0x6 +#define SERDES_SPEED_3_125_G 0x8 +#define PHY_RX_INIT_BIT BIT(30) + +/* + * lane0: USB3/GbE1 PHY Status 1 + * lane1: PCIe/GbE0 PHY Status 1 + * (used only by SGMII code) + */ +#define COMPHY_PHY_STAT1 0x18 +#define PHY_RX_INIT_DONE_BIT BIT(0) +#define PHY_PLL_READY_RX_BIT BIT(2) +#define PHY_PLL_READY_TX_BIT BIT(3) + +/* PHY Selector */ +#define COMPHY_SELECTOR_PHY_REG 0xFC +/* bit0: 0: Lane1 is GbE0; 1: Lane1 is PCIe */ +#define COMPHY_SELECTOR_PCIE_GBE0_SEL_BIT BIT(0) +/* bit4: 0: Lane0 is GbE1; 1: Lane0 is USB3 */ +#define COMPHY_SELECTOR_USB3_GBE1_SEL_BIT BIT(4) +/* bit8: 0: Lane0 is USB3 instead of GbE1, Lane2 is SATA; 1: Lane2 is USB3 */ +#define COMPHY_SELECTOR_USB3_PHY_SEL_BIT BIT(8) struct mvebu_a3700_comphy_conf { unsigned int lane; enum phy_mode mode; int submode; - unsigned int port; - u32 fw_mode; }; -#define MVEBU_A3700_COMPHY_CONF(_lane, _mode, _smode, _port, _fw) \ +#define MVEBU_A3700_COMPHY_CONF(_lane, _mode, _smode) \ { \ .lane = _lane, \ .mode = _mode, \ .submode = _smode, \ - .port = _port, \ - .fw_mode = _fw, \ } -#define MVEBU_A3700_COMPHY_CONF_GEN(_lane, _mode, _port, _fw) \ - MVEBU_A3700_COMPHY_CONF(_lane, _mode, PHY_INTERFACE_MODE_NA, _port, _fw) +#define MVEBU_A3700_COMPHY_CONF_GEN(_lane, _mode) \ + MVEBU_A3700_COMPHY_CONF(_lane, _mode, PHY_INTERFACE_MODE_NA) -#define MVEBU_A3700_COMPHY_CONF_ETH(_lane, _smode, _port, _fw) \ - MVEBU_A3700_COMPHY_CONF(_lane, PHY_MODE_ETHERNET, _smode, _port, _fw) +#define MVEBU_A3700_COMPHY_CONF_ETH(_lane, _smode) \ + MVEBU_A3700_COMPHY_CONF(_lane, PHY_MODE_ETHERNET, _smode) static const struct mvebu_a3700_comphy_conf mvebu_a3700_comphy_modes[] = { /* lane 0 */ - MVEBU_A3700_COMPHY_CONF_GEN(0, PHY_MODE_USB_HOST_SS, 0, - COMPHY_FW_MODE_USB3H), - MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_SGMII, 1, - COMPHY_FW_MODE_SGMII), - MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_2500BASEX, 1, - COMPHY_FW_MODE_2500BASEX), + MVEBU_A3700_COMPHY_CONF_GEN(0, PHY_MODE_USB_HOST_SS), + MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_SGMII), + MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_1000BASEX), + MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_2500BASEX), /* lane 1 */ - MVEBU_A3700_COMPHY_CONF_GEN(1, PHY_MODE_PCIE, 0, - COMPHY_FW_MODE_PCIE), - MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_SGMII, 0, - COMPHY_FW_MODE_SGMII), - MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_2500BASEX, 0, - COMPHY_FW_MODE_2500BASEX), + MVEBU_A3700_COMPHY_CONF_GEN(1, PHY_MODE_PCIE), + MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_SGMII), + MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_1000BASEX), + MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_2500BASEX), /* lane 2 */ - MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_SATA, 0, - COMPHY_FW_MODE_SATA), - MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_USB_HOST_SS, 0, - COMPHY_FW_MODE_USB3H), + MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_SATA), + MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_USB_HOST_SS), +}; + +struct mvebu_a3700_comphy_priv { + void __iomem *comphy_regs; + void __iomem *lane0_phy_regs; /* USB3 and GbE1 */ + void __iomem *lane1_phy_regs; /* PCIe and GbE0 */ + void __iomem *lane2_phy_indirect; /* SATA and USB3 */ + spinlock_t lock; /* for PHY selector access */ + bool xtal_is_40m; }; struct mvebu_a3700_comphy_lane { + struct mvebu_a3700_comphy_priv *priv; struct device *dev; unsigned int id; enum phy_mode mode; int submode; - int port; + bool invert_tx; + bool invert_rx; + bool needs_reset; +}; + +struct gbe_phy_init_data_fix { + u16 addr; + u16 value; }; -static int mvebu_a3700_comphy_smc(unsigned long function, unsigned long lane, - unsigned long mode) +/* Changes to 40M1G25 mode data required for running 40M3G125 init mode */ +static struct gbe_phy_init_data_fix gbe_phy_init_fix[] = { + { 0x005, 0x07CC }, { 0x015, 0x0000 }, { 0x01B, 0x0000 }, + { 0x01D, 0x0000 }, { 0x01E, 0x0000 }, { 0x01F, 0x0000 }, + { 0x020, 0x0000 }, { 0x021, 0x0030 }, { 0x026, 0x0888 }, + { 0x04D, 0x0152 }, { 0x04F, 0xA020 }, { 0x050, 0x07CC }, + { 0x053, 0xE9CA }, { 0x055, 0xBD97 }, { 0x071, 0x3015 }, + { 0x076, 0x03AA }, { 0x07C, 0x0FDF }, { 0x0C2, 0x3030 }, + { 0x0C3, 0x8000 }, { 0x0E2, 0x5550 }, { 0x0E3, 0x12A4 }, + { 0x0E4, 0x7D00 }, { 0x0E6, 0x0C83 }, { 0x101, 0xFCC0 }, + { 0x104, 0x0C10 } +}; + +/* 40M1G25 mode init data */ +static u16 gbe_phy_init[512] = { + /* 0 1 2 3 4 5 6 7 */ + /*-----------------------------------------------------------*/ + /* 8 9 A B C D E F */ + 0x3110, 0xFD83, 0x6430, 0x412F, 0x82C0, 0x06FA, 0x4500, 0x6D26, /* 00 */ + 0xAFC0, 0x8000, 0xC000, 0x0000, 0x2000, 0x49CC, 0x0BC9, 0x2A52, /* 08 */ + 0x0BD2, 0x0CDE, 0x13D2, 0x0CE8, 0x1149, 0x10E0, 0x0000, 0x0000, /* 10 */ + 0x0000, 0x0000, 0x0000, 0x0001, 0x0000, 0x4134, 0x0D2D, 0xFFFF, /* 18 */ + 0xFFE0, 0x4030, 0x1016, 0x0030, 0x0000, 0x0800, 0x0866, 0x0000, /* 20 */ + 0x0000, 0x0000, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, /* 28 */ + 0xFFFF, 0xFFFF, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /* 30 */ + 0x0000, 0x0000, 0x000F, 0x6A62, 0x1988, 0x3100, 0x3100, 0x3100, /* 38 */ + 0x3100, 0xA708, 0x2430, 0x0830, 0x1030, 0x4610, 0xFF00, 0xFF00, /* 40 */ + 0x0060, 0x1000, 0x0400, 0x0040, 0x00F0, 0x0155, 0x1100, 0xA02A, /* 48 */ + 0x06FA, 0x0080, 0xB008, 0xE3ED, 0x5002, 0xB592, 0x7A80, 0x0001, /* 50 */ + 0x020A, 0x8820, 0x6014, 0x8054, 0xACAA, 0xFC88, 0x2A02, 0x45CF, /* 58 */ + 0x000F, 0x1817, 0x2860, 0x064F, 0x0000, 0x0204, 0x1800, 0x6000, /* 60 */ + 0x810F, 0x4F23, 0x4000, 0x4498, 0x0850, 0x0000, 0x000E, 0x1002, /* 68 */ + 0x9D3A, 0x3009, 0xD066, 0x0491, 0x0001, 0x6AB0, 0x0399, 0x3780, /* 70 */ + 0x0040, 0x5AC0, 0x4A80, 0x0000, 0x01DF, 0x0000, 0x0007, 0x0000, /* 78 */ + 0x2D54, 0x00A1, 0x4000, 0x0100, 0xA20A, 0x0000, 0x0000, 0x0000, /* 80 */ + 0x0000, 0x0000, 0x0000, 0x7400, 0x0E81, 0x1000, 0x1242, 0x0210, /* 88 */ + 0x80DF, 0x0F1F, 0x2F3F, 0x4F5F, 0x6F7F, 0x0F1F, 0x2F3F, 0x4F5F, /* 90 */ + 0x6F7F, 0x4BAD, 0x0000, 0x0000, 0x0800, 0x0000, 0x2400, 0xB651, /* 98 */ + 0xC9E0, 0x4247, 0x0A24, 0x0000, 0xAF19, 0x1004, 0x0000, 0x0000, /* A0 */ + 0x0000, 0x0013, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /* A8 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /* B0 */ + 0x0000, 0x0000, 0x0000, 0x0060, 0x0000, 0x0000, 0x0000, 0x0000, /* B8 */ + 0x0000, 0x0000, 0x3010, 0xFA00, 0x0000, 0x0000, 0x0000, 0x0003, /* C0 */ + 0x1618, 0x8200, 0x8000, 0x0400, 0x050F, 0x0000, 0x0000, 0x0000, /* C8 */ + 0x4C93, 0x0000, 0x1000, 0x1120, 0x0010, 0x1242, 0x1242, 0x1E00, /* D0 */ + 0x0000, 0x0000, 0x0000, 0x00F8, 0x0000, 0x0041, 0x0800, 0x0000, /* D8 */ + 0x82A0, 0x572E, 0x2490, 0x14A9, 0x4E00, 0x0000, 0x0803, 0x0541, /* E0 */ + 0x0C15, 0x0000, 0x0000, 0x0400, 0x2626, 0x0000, 0x0000, 0x4200, /* E8 */ + 0x0000, 0xAA55, 0x1020, 0x0000, 0x0000, 0x5010, 0x0000, 0x0000, /* F0 */ + 0x0000, 0x0000, 0x5000, 0x0000, 0x0000, 0x0000, 0x02F2, 0x0000, /* F8 */ + 0x101F, 0xFDC0, 0x4000, 0x8010, 0x0110, 0x0006, 0x0000, 0x0000, /*100 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*108 */ + 0x04CF, 0x0000, 0x04CF, 0x0000, 0x04CF, 0x0000, 0x04C6, 0x0000, /*110 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*118 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*120 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*128 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*130 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*138 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*140 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*148 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*150 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*158 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*160 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*168 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*170 */ + 0x0000, 0x0000, 0x0000, 0x00F0, 0x08A2, 0x3112, 0x0A14, 0x0000, /*178 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*180 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*188 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*190 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*198 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1A0 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1A8 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1B0 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1B8 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1C0 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1C8 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1D0 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1D8 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1E0 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1E8 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, /*1F0 */ + 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000 /*1F8 */ +}; + +static inline void comphy_reg_set(void __iomem *addr, u32 data, u32 mask) { - struct arm_smccc_res res; - s32 ret; + u32 val; - arm_smccc_smc(function, lane, mode, 0, 0, 0, 0, 0, &res); - ret = res.a0; + val = readl(addr); + val = (val & ~mask) | (data & mask); + writel(val, addr); +} + +static inline void comphy_reg_set16(void __iomem *addr, u16 data, u16 mask) +{ + u16 val; + + val = readw(addr); + val = (val & ~mask) | (data & mask); + writew(val, addr); +} + +/* Used for accessing lane 2 registers (SATA/USB3 PHY) */ +static void comphy_set_indirect(struct mvebu_a3700_comphy_priv *priv, + u32 offset, u16 data, u16 mask) +{ + writel(offset, + priv->lane2_phy_indirect + COMPHY_LANE2_INDIR_ADDR); + comphy_reg_set(priv->lane2_phy_indirect + COMPHY_LANE2_INDIR_DATA, + data, mask); +} + +static void comphy_lane_reg_set(struct mvebu_a3700_comphy_lane *lane, + u16 reg, u16 data, u16 mask) +{ + if (lane->id == 2) { + /* lane 2 PHY registers are accessed indirectly */ + comphy_set_indirect(lane->priv, + reg + COMPHY_LANE2_REGS_BASE, + data, mask); + } else { + void __iomem *base = lane->id == 1 ? + lane->priv->lane1_phy_regs : + lane->priv->lane0_phy_regs; + + comphy_reg_set16(base + COMPHY_LANE_REG_DIRECT(reg), + data, mask); + } +} + +static int comphy_lane_reg_poll(struct mvebu_a3700_comphy_lane *lane, + u16 reg, u16 bits, + ulong sleep_us, ulong timeout_us) +{ + int ret; + + if (lane->id == 2) { + u32 data; + + /* lane 2 PHY registers are accessed indirectly */ + writel(reg + COMPHY_LANE2_REGS_BASE, + lane->priv->lane2_phy_indirect + + COMPHY_LANE2_INDIR_ADDR); + + ret = readl_poll_timeout(lane->priv->lane2_phy_indirect + + COMPHY_LANE2_INDIR_DATA, + data, (data & bits) == bits, + sleep_us, timeout_us); + } else { + void __iomem *base = lane->id == 1 ? + lane->priv->lane1_phy_regs : + lane->priv->lane0_phy_regs; + u16 data; + + ret = readw_poll_timeout(base + COMPHY_LANE_REG_DIRECT(reg), + data, (data & bits) == bits, + sleep_us, timeout_us); + } + + return ret; +} + +static void comphy_periph_reg_set(struct mvebu_a3700_comphy_lane *lane, + u8 reg, u32 data, u32 mask) +{ + comphy_reg_set(lane->priv->comphy_regs + COMPHY_PHY_REG(lane->id, reg), + data, mask); +} + +static int comphy_periph_reg_poll(struct mvebu_a3700_comphy_lane *lane, + u8 reg, u32 bits, + ulong sleep_us, ulong timeout_us) +{ + u32 data; + + return readl_poll_timeout(lane->priv->comphy_regs + + COMPHY_PHY_REG(lane->id, reg), + data, (data & bits) == bits, + sleep_us, timeout_us); +} + +/* PHY selector configures with corresponding modes */ +static int +mvebu_a3700_comphy_set_phy_selector(struct mvebu_a3700_comphy_lane *lane) +{ + u32 old, new, clr = 0, set = 0; + unsigned long flags; + + switch (lane->mode) { + case PHY_MODE_SATA: + /* SATA must be in Lane2 */ + if (lane->id == 2) + clr = COMPHY_SELECTOR_USB3_PHY_SEL_BIT; + else + goto error; + break; + + case PHY_MODE_ETHERNET: + if (lane->id == 0) + clr = COMPHY_SELECTOR_USB3_GBE1_SEL_BIT; + else if (lane->id == 1) + clr = COMPHY_SELECTOR_PCIE_GBE0_SEL_BIT; + else + goto error; + break; + + case PHY_MODE_USB_HOST_SS: + if (lane->id == 2) + set = COMPHY_SELECTOR_USB3_PHY_SEL_BIT; + else if (lane->id == 0) + set = COMPHY_SELECTOR_USB3_GBE1_SEL_BIT; + else + goto error; + break; + + case PHY_MODE_PCIE: + /* PCIE must be in Lane1 */ + if (lane->id == 1) + set = COMPHY_SELECTOR_PCIE_GBE0_SEL_BIT; + else + goto error; + break; - switch (ret) { - case SMCCC_RET_SUCCESS: - return 0; - case SMCCC_RET_NOT_SUPPORTED: - return -EOPNOTSUPP; default: + goto error; + } + + spin_lock_irqsave(&lane->priv->lock, flags); + + old = readl(lane->priv->comphy_regs + COMPHY_SELECTOR_PHY_REG); + new = (old & ~clr) | set; + writel(new, lane->priv->comphy_regs + COMPHY_SELECTOR_PHY_REG); + + spin_unlock_irqrestore(&lane->priv->lock, flags); + + dev_dbg(lane->dev, + "COMPHY[%d] mode[%d] changed PHY selector 0x%08x -> 0x%08x\n", + lane->id, lane->mode, old, new); + + return 0; +error: + dev_err(lane->dev, "COMPHY[%d] mode[%d] is invalid\n", lane->id, + lane->mode); + return -EINVAL; +} + +static int +mvebu_a3700_comphy_sata_power_on(struct mvebu_a3700_comphy_lane *lane) +{ + u32 mask, data, ref_clk; + int ret; + + /* Configure phy selector for SATA */ + ret = mvebu_a3700_comphy_set_phy_selector(lane); + if (ret) + return ret; + + /* Clear phy isolation mode to make it work in normal mode */ + comphy_lane_reg_set(lane, COMPHY_ISOLATION_CTRL, + 0x0, PHY_ISOLATE_MODE); + + /* 0. Check the Polarity invert bits */ + data = 0x0; + if (lane->invert_tx) + data |= TXD_INVERT_BIT; + if (lane->invert_rx) + data |= RXD_INVERT_BIT; + mask = TXD_INVERT_BIT | RXD_INVERT_BIT; + comphy_lane_reg_set(lane, COMPHY_SYNC_PATTERN, data, mask); + + /* 1. Select 40-bit data width */ + comphy_lane_reg_set(lane, COMPHY_DIG_LOOPBACK_EN, + DATA_WIDTH_40BIT, SEL_DATA_WIDTH_MASK); + + /* 2. Select reference clock(25M) and PHY mode (SATA) */ + if (lane->priv->xtal_is_40m) + ref_clk = REF_FREF_SEL_SERDES_40MHZ; + else + ref_clk = REF_FREF_SEL_SERDES_25MHZ; + + data = ref_clk | COMPHY_MODE_SATA; + mask = REF_FREF_SEL_MASK | COMPHY_MODE_MASK; + comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, data, mask); + + /* 3. Use maximum PLL rate (no power save) */ + comphy_lane_reg_set(lane, COMPHY_KVCO_CAL_CTRL, + USE_MAX_PLL_RATE_BIT, USE_MAX_PLL_RATE_BIT); + + /* 4. Reset reserved bit */ + comphy_set_indirect(lane->priv, COMPHY_RESERVED_REG, + 0x0, PHYCTRL_FRM_PIN_BIT); + + /* 5. Set vendor-specific configuration (It is done in sata driver) */ + /* XXX: in U-Boot below sequence was executed in this place, in Linux + * not. Now it is done only in U-Boot before this comphy + * initialization - tests shows that it works ok, but in case of any + * future problem it is left for reference. + * reg_set(MVEBU_REGS_BASE + 0xe00a0, 0, 0xffffffff); + * reg_set(MVEBU_REGS_BASE + 0xe00a4, BIT(6), BIT(6)); + */ + + /* Wait for > 55 us to allow PLL be enabled */ + udelay(PLL_SET_DELAY_US); + + /* Polling status */ + ret = comphy_lane_reg_poll(lane, COMPHY_DIG_LOOPBACK_EN, + PLL_READY_TX_BIT, COMPHY_PLL_SLEEP, + COMPHY_PLL_TIMEOUT); + if (ret) + dev_err(lane->dev, "Failed to lock SATA PLL\n"); + + return ret; +} + +static void comphy_gbe_phy_init(struct mvebu_a3700_comphy_lane *lane, + bool is_1gbps) +{ + int addr, fix_idx; + u16 val; + + fix_idx = 0; + for (addr = 0; addr < 512; addr++) { + /* + * All PHY register values are defined in full for 3.125Gbps + * SERDES speed. The values required for 1.25 Gbps are almost + * the same and only few registers should be "fixed" in + * comparison to 3.125 Gbps values. These register values are + * stored in "gbe_phy_init_fix" array. + */ + if (!is_1gbps && gbe_phy_init_fix[fix_idx].addr == addr) { + /* Use new value */ + val = gbe_phy_init_fix[fix_idx].value; + if (fix_idx < ARRAY_SIZE(gbe_phy_init_fix)) + fix_idx++; + } else { + val = gbe_phy_init[addr]; + } + + comphy_lane_reg_set(lane, addr, val, 0xFFFF); + } +} + +static int +mvebu_a3700_comphy_ethernet_power_on(struct mvebu_a3700_comphy_lane *lane) +{ + u32 mask, data, speed_sel; + int ret; + + /* Set selector */ + ret = mvebu_a3700_comphy_set_phy_selector(lane); + if (ret) + return ret; + + /* + * 1. Reset PHY by setting PHY input port PIN_RESET=1. + * 2. Set PHY input port PIN_TX_IDLE=1, PIN_PU_IVREF=1 to keep + * PHY TXP/TXN output to idle state during PHY initialization + * 3. Set PHY input port PIN_PU_PLL=0, PIN_PU_RX=0, PIN_PU_TX=0. + */ + data = PIN_PU_IVREF_BIT | PIN_TX_IDLE_BIT | PIN_RESET_COMPHY_BIT; + mask = data | PIN_RESET_CORE_BIT | PIN_PU_PLL_BIT | PIN_PU_RX_BIT | + PIN_PU_TX_BIT | PHY_RX_INIT_BIT; + comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask); + + /* 4. Release reset to the PHY by setting PIN_RESET=0. */ + data = 0x0; + mask = PIN_RESET_COMPHY_BIT; + comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask); + + /* + * 5. Set PIN_PHY_GEN_TX[3:0] and PIN_PHY_GEN_RX[3:0] to decide COMPHY + * bit rate + */ + switch (lane->submode) { + case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_1000BASEX: + /* SGMII 1G, SerDes speed 1.25G */ + speed_sel = SERDES_SPEED_1_25_G; + break; + case PHY_INTERFACE_MODE_2500BASEX: + /* 2500Base-X, SerDes speed 3.125G */ + speed_sel = SERDES_SPEED_3_125_G; + break; + default: + /* Other rates are not supported */ + dev_err(lane->dev, + "unsupported phy speed %d on comphy lane%d\n", + lane->submode, lane->id); return -EINVAL; } + data = GEN_RX_SEL_VALUE(speed_sel) | GEN_TX_SEL_VALUE(speed_sel); + mask = GEN_RX_SEL_MASK | GEN_TX_SEL_MASK; + comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask); + + /* + * 6. Wait 10mS for bandgap and reference clocks to stabilize; then + * start SW programming. + */ + mdelay(10); + + /* 7. Program COMPHY register PHY_MODE */ + data = COMPHY_MODE_SERDES; + mask = COMPHY_MODE_MASK; + comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, data, mask); + + /* + * 8. Set COMPHY register REFCLK_SEL to select the correct REFCLK + * source + */ + data = 0x0; + mask = PHY_REF_CLK_SEL; + comphy_lane_reg_set(lane, COMPHY_MISC_CTRL0, data, mask); + + /* + * 9. Set correct reference clock frequency in COMPHY register + * REF_FREF_SEL. + */ + if (lane->priv->xtal_is_40m) + data = REF_FREF_SEL_SERDES_50MHZ; + else + data = REF_FREF_SEL_SERDES_25MHZ; + + mask = REF_FREF_SEL_MASK; + comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, data, mask); + + /* + * 10. Program COMPHY register PHY_GEN_MAX[1:0] + * This step is mentioned in the flow received from verification team. + * However the PHY_GEN_MAX value is only meaningful for other interfaces + * (not SERDES). For instance, it selects SATA speed 1.5/3/6 Gbps or + * PCIe speed 2.5/5 Gbps + */ + + /* + * 11. Program COMPHY register SEL_BITS to set correct parallel data + * bus width + */ + data = DATA_WIDTH_10BIT; + mask = SEL_DATA_WIDTH_MASK; + comphy_lane_reg_set(lane, COMPHY_DIG_LOOPBACK_EN, data, mask); + + /* + * 12. As long as DFE function needs to be enabled in any mode, + * COMPHY register DFE_UPDATE_EN[5:0] shall be programmed to 0x3F + * for real chip during COMPHY power on. + * The value of the DFE_UPDATE_EN already is 0x3F, because it is the + * default value after reset of the PHY. + */ + + /* + * 13. Program COMPHY GEN registers. + * These registers should be programmed based on the lab testing result + * to achieve optimal performance. Please contact the CEA group to get + * the related GEN table during real chip bring-up. We only required to + * run though the entire registers programming flow defined by + * "comphy_gbe_phy_init" when the REF clock is 40 MHz. For REF clock + * 25 MHz the default values stored in PHY registers are OK. + */ + dev_dbg(lane->dev, "Running C-DPI phy init %s mode\n", + lane->submode == PHY_INTERFACE_MODE_2500BASEX ? "2G5" : "1G"); + if (lane->priv->xtal_is_40m) + comphy_gbe_phy_init(lane, + lane->submode != PHY_INTERFACE_MODE_2500BASEX); + + /* + * 14. Check the PHY Polarity invert bit + */ + data = 0x0; + if (lane->invert_tx) + data |= TXD_INVERT_BIT; + if (lane->invert_rx) + data |= RXD_INVERT_BIT; + mask = TXD_INVERT_BIT | RXD_INVERT_BIT; + comphy_lane_reg_set(lane, COMPHY_SYNC_PATTERN, data, mask); + + /* + * 15. Set PHY input ports PIN_PU_PLL, PIN_PU_TX and PIN_PU_RX to 1 to + * start PHY power up sequence. All the PHY register programming should + * be done before PIN_PU_PLL=1. There should be no register programming + * for normal PHY operation from this point. + */ + data = PIN_PU_PLL_BIT | PIN_PU_RX_BIT | PIN_PU_TX_BIT; + mask = data; + comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask); + + /* + * 16. Wait for PHY power up sequence to finish by checking output ports + * PIN_PLL_READY_TX=1 and PIN_PLL_READY_RX=1. + */ + ret = comphy_periph_reg_poll(lane, COMPHY_PHY_STAT1, + PHY_PLL_READY_TX_BIT | + PHY_PLL_READY_RX_BIT, + COMPHY_PLL_SLEEP, COMPHY_PLL_TIMEOUT); + if (ret) { + dev_err(lane->dev, "Failed to lock PLL for SERDES PHY %d\n", + lane->id); + return ret; + } + + /* + * 17. Set COMPHY input port PIN_TX_IDLE=0 + */ + comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, 0x0, PIN_TX_IDLE_BIT); + + /* + * 18. After valid data appear on PIN_RXDATA bus, set PIN_RX_INIT=1. To + * start RX initialization. PIN_RX_INIT_DONE will be cleared to 0 by the + * PHY After RX initialization is done, PIN_RX_INIT_DONE will be set to + * 1 by COMPHY Set PIN_RX_INIT=0 after PIN_RX_INIT_DONE= 1. Please + * refer to RX initialization part for details. + */ + comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, + PHY_RX_INIT_BIT, PHY_RX_INIT_BIT); + + ret = comphy_periph_reg_poll(lane, COMPHY_PHY_STAT1, + PHY_PLL_READY_TX_BIT | + PHY_PLL_READY_RX_BIT, + COMPHY_PLL_SLEEP, COMPHY_PLL_TIMEOUT); + if (ret) { + dev_err(lane->dev, "Failed to lock PLL for SERDES PHY %d\n", + lane->id); + return ret; + } + + ret = comphy_periph_reg_poll(lane, COMPHY_PHY_STAT1, + PHY_RX_INIT_DONE_BIT, + COMPHY_PLL_SLEEP, COMPHY_PLL_TIMEOUT); + if (ret) + dev_err(lane->dev, "Failed to init RX of SERDES PHY %d\n", + lane->id); + + return ret; +} + +static int +mvebu_a3700_comphy_usb3_power_on(struct mvebu_a3700_comphy_lane *lane) +{ + u32 mask, data, cfg, ref_clk; + int ret; + + /* Set phy seclector */ + ret = mvebu_a3700_comphy_set_phy_selector(lane); + if (ret) + return ret; + + /* + * 0. Set PHY OTG Control(0x5d034), bit 4, Power up OTG module The + * register belong to UTMI module, so it is set in UTMI phy driver. + */ + + /* + * 1. Set PRD_TXDEEMPH (3.5db de-emph) + */ + data = PRD_TXDEEMPH0_MASK; + mask = PRD_TXDEEMPH0_MASK | PRD_TXMARGIN_MASK | PRD_TXSWING_MASK | + CFG_TX_ALIGN_POS_MASK; + comphy_lane_reg_set(lane, COMPHY_PIPE_LANE_CFG0, data, mask); + + /* + * 2. Set BIT0: enable transmitter in high impedance mode + * Set BIT[3:4]: delay 2 clock cycles for HiZ off latency + * Set BIT6: Tx detect Rx at HiZ mode + * Unset BIT15: set to 0 to set USB3 De-emphasize level to -3.5db + * together with bit 0 of COMPHY_PIPE_LANE_CFG0 register + */ + data = TX_DET_RX_MODE | GEN2_TX_DATA_DLY_DEFT | TX_ELEC_IDLE_MODE_EN; + mask = PRD_TXDEEMPH1_MASK | TX_DET_RX_MODE | GEN2_TX_DATA_DLY_MASK | + TX_ELEC_IDLE_MODE_EN; + comphy_lane_reg_set(lane, COMPHY_PIPE_LANE_CFG1, data, mask); + + /* + * 3. Set Spread Spectrum Clock Enabled + */ + comphy_lane_reg_set(lane, COMPHY_PIPE_LANE_CFG4, + SPREAD_SPECTRUM_CLK_EN, SPREAD_SPECTRUM_CLK_EN); + + /* + * 4. Set Override Margining Controls From the MAC: + * Use margining signals from lane configuration + */ + comphy_lane_reg_set(lane, COMPHY_PIPE_TEST_MODE_CTRL, + MODE_MARGIN_OVERRIDE, 0xFFFF); + + /* + * 5. Set Lane-to-Lane Bundle Clock Sampling Period = per PCLK cycles + * set Mode Clock Source = PCLK is generated from REFCLK + */ + data = 0x0; + mask = MODE_CLK_SRC | BUNDLE_PERIOD_SEL | BUNDLE_PERIOD_SCALE_MASK | + BUNDLE_SAMPLE_CTRL | PLL_READY_DLY_MASK; + comphy_lane_reg_set(lane, COMPHY_PIPE_CLK_SRC_LO, data, mask); + + /* + * 6. Set G2 Spread Spectrum Clock Amplitude at 4K + */ + comphy_lane_reg_set(lane, COMPHY_GEN2_SET2, + GS2_TX_SSC_AMP_4128, GS2_TX_SSC_AMP_MASK); + + /* + * 7. Unset G3 Spread Spectrum Clock Amplitude + * set G3 TX and RX Register Master Current Select + */ + data = GS2_VREG_RXTX_MAS_ISET_60U; + mask = GS2_TX_SSC_AMP_MASK | GS2_VREG_RXTX_MAS_ISET_MASK | + GS2_RSVD_6_0_MASK; + comphy_lane_reg_set(lane, COMPHY_GEN3_SET2, data, mask); + + /* + * 8. Check crystal jumper setting and program the Power and PLL Control + * accordingly Change RX wait + */ + if (lane->priv->xtal_is_40m) { + ref_clk = REF_FREF_SEL_PCIE_USB3_40MHZ; + cfg = CFG_PM_RXDLOZ_WAIT_12_UNIT; + } else { + ref_clk = REF_FREF_SEL_PCIE_USB3_25MHZ; + cfg = CFG_PM_RXDLOZ_WAIT_7_UNIT; + } + + data = PU_IVREF_BIT | PU_PLL_BIT | PU_RX_BIT | PU_TX_BIT | + PU_TX_INTP_BIT | PU_DFE_BIT | COMPHY_MODE_USB3 | ref_clk; + mask = PU_IVREF_BIT | PU_PLL_BIT | PU_RX_BIT | PU_TX_BIT | + PU_TX_INTP_BIT | PU_DFE_BIT | PLL_LOCK_BIT | COMPHY_MODE_MASK | + REF_FREF_SEL_MASK; + comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, data, mask); + + data = CFG_PM_RXDEN_WAIT_1_UNIT | cfg; + mask = CFG_PM_OSCCLK_WAIT_MASK | CFG_PM_RXDEN_WAIT_MASK | + CFG_PM_RXDLOZ_WAIT_MASK; + comphy_lane_reg_set(lane, COMPHY_PIPE_PWR_MGM_TIM1, data, mask); + + /* + * 9. Enable idle sync + */ + comphy_lane_reg_set(lane, COMPHY_IDLE_SYNC_EN, + IDLE_SYNC_EN, IDLE_SYNC_EN); + + /* + * 10. Enable the output of 500M clock + */ + comphy_lane_reg_set(lane, COMPHY_MISC_CTRL0, CLK500M_EN, CLK500M_EN); + + /* + * 11. Set 20-bit data width + */ + comphy_lane_reg_set(lane, COMPHY_DIG_LOOPBACK_EN, + DATA_WIDTH_20BIT, 0xFFFF); + + /* + * 12. Override Speed_PLL value and use MAC PLL + */ + data = SPEED_PLL_VALUE_16 | USE_MAX_PLL_RATE_BIT; + mask = 0xFFFF; + comphy_lane_reg_set(lane, COMPHY_KVCO_CAL_CTRL, data, mask); + + /* + * 13. Check the Polarity invert bit + */ + data = 0x0; + if (lane->invert_tx) + data |= TXD_INVERT_BIT; + if (lane->invert_rx) + data |= RXD_INVERT_BIT; + mask = TXD_INVERT_BIT | RXD_INVERT_BIT; + comphy_lane_reg_set(lane, COMPHY_SYNC_PATTERN, data, mask); + + /* + * 14. Set max speed generation to USB3.0 5Gbps + */ + comphy_lane_reg_set(lane, COMPHY_SYNC_MASK_GEN, + PHY_GEN_MAX_USB3_5G, PHY_GEN_MAX_MASK); + + /* + * 15. Set capacitor value for FFE gain peaking to 0xF + */ + comphy_lane_reg_set(lane, COMPHY_GEN2_SET3, + GS3_FFE_CAP_SEL_VALUE, GS3_FFE_CAP_SEL_MASK); + + /* + * 16. Release SW reset + */ + data = MODE_CORE_CLK_FREQ_SEL | MODE_PIPE_WIDTH_32 | MODE_REFDIV_BY_4; + mask = 0xFFFF; + comphy_lane_reg_set(lane, COMPHY_PIPE_RST_CLK_CTRL, data, mask); + + /* Wait for > 55 us to allow PCLK be enabled */ + udelay(PLL_SET_DELAY_US); + + ret = comphy_lane_reg_poll(lane, COMPHY_PIPE_LANE_STAT1, TXDCLK_PCLK_EN, + COMPHY_PLL_SLEEP, COMPHY_PLL_TIMEOUT); + if (ret) + dev_err(lane->dev, "Failed to lock USB3 PLL\n"); + + return ret; +} + +static int +mvebu_a3700_comphy_pcie_power_on(struct mvebu_a3700_comphy_lane *lane) +{ + u32 mask, data, ref_clk; + int ret; + + /* Configure phy selector for PCIe */ + ret = mvebu_a3700_comphy_set_phy_selector(lane); + if (ret) + return ret; + + /* 1. Enable max PLL. */ + comphy_lane_reg_set(lane, COMPHY_PIPE_LANE_CFG1, + USE_MAX_PLL_RATE_EN, USE_MAX_PLL_RATE_EN); + + /* 2. Select 20 bit SERDES interface. */ + comphy_lane_reg_set(lane, COMPHY_PIPE_CLK_SRC_LO, + CFG_SEL_20B, CFG_SEL_20B); + + /* 3. Force to use reg setting for PCIe mode */ + comphy_lane_reg_set(lane, COMPHY_MISC_CTRL1, + SEL_BITS_PCIE_FORCE, SEL_BITS_PCIE_FORCE); + + /* 4. Change RX wait */ + data = CFG_PM_RXDEN_WAIT_1_UNIT | CFG_PM_RXDLOZ_WAIT_12_UNIT; + mask = CFG_PM_OSCCLK_WAIT_MASK | CFG_PM_RXDEN_WAIT_MASK | + CFG_PM_RXDLOZ_WAIT_MASK; + comphy_lane_reg_set(lane, COMPHY_PIPE_PWR_MGM_TIM1, data, mask); + + /* 5. Enable idle sync */ + comphy_lane_reg_set(lane, COMPHY_IDLE_SYNC_EN, + IDLE_SYNC_EN, IDLE_SYNC_EN); + + /* 6. Enable the output of 100M/125M/500M clock */ + data = CLK500M_EN | TXDCLK_2X_SEL | CLK100M_125M_EN; + mask = data; + comphy_lane_reg_set(lane, COMPHY_MISC_CTRL0, data, mask); + + /* + * 7. Enable TX, PCIE global register, 0xd0074814, it is done in + * PCI-E driver + */ + + /* + * 8. Check crystal jumper setting and program the Power and PLL + * Control accordingly + */ + + if (lane->priv->xtal_is_40m) + ref_clk = REF_FREF_SEL_PCIE_USB3_40MHZ; + else + ref_clk = REF_FREF_SEL_PCIE_USB3_25MHZ; + + data = PU_IVREF_BIT | PU_PLL_BIT | PU_RX_BIT | PU_TX_BIT | + PU_TX_INTP_BIT | PU_DFE_BIT | COMPHY_MODE_PCIE | ref_clk; + mask = 0xFFFF; + comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, data, mask); + + /* 9. Override Speed_PLL value and use MAC PLL */ + comphy_lane_reg_set(lane, COMPHY_KVCO_CAL_CTRL, + SPEED_PLL_VALUE_16 | USE_MAX_PLL_RATE_BIT, + 0xFFFF); + + /* 10. Check the Polarity invert bit */ + data = 0x0; + if (lane->invert_tx) + data |= TXD_INVERT_BIT; + if (lane->invert_rx) + data |= RXD_INVERT_BIT; + mask = TXD_INVERT_BIT | RXD_INVERT_BIT; + comphy_lane_reg_set(lane, COMPHY_SYNC_PATTERN, data, mask); + + /* 11. Release SW reset */ + data = MODE_CORE_CLK_FREQ_SEL | MODE_PIPE_WIDTH_32; + mask = data | PIPE_SOFT_RESET | MODE_REFDIV_MASK; + comphy_lane_reg_set(lane, COMPHY_PIPE_RST_CLK_CTRL, data, mask); + + /* Wait for > 55 us to allow PCLK be enabled */ + udelay(PLL_SET_DELAY_US); + + ret = comphy_lane_reg_poll(lane, COMPHY_PIPE_LANE_STAT1, TXDCLK_PCLK_EN, + COMPHY_PLL_SLEEP, COMPHY_PLL_TIMEOUT); + if (ret) + dev_err(lane->dev, "Failed to lock PCIE PLL\n"); + + return ret; +} + +static void +mvebu_a3700_comphy_sata_power_off(struct mvebu_a3700_comphy_lane *lane) +{ + /* Set phy isolation mode */ + comphy_lane_reg_set(lane, COMPHY_ISOLATION_CTRL, + PHY_ISOLATE_MODE, PHY_ISOLATE_MODE); + + /* Power off PLL, Tx, Rx */ + comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, + 0x0, PU_PLL_BIT | PU_RX_BIT | PU_TX_BIT); +} + +static void +mvebu_a3700_comphy_ethernet_power_off(struct mvebu_a3700_comphy_lane *lane) +{ + u32 mask, data; + + data = PIN_RESET_CORE_BIT | PIN_RESET_COMPHY_BIT | PIN_PU_IVREF_BIT | + PHY_RX_INIT_BIT; + mask = data; + comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask); +} + +static void +mvebu_a3700_comphy_pcie_power_off(struct mvebu_a3700_comphy_lane *lane) +{ + /* Power off PLL, Tx, Rx */ + comphy_lane_reg_set(lane, COMPHY_POWER_PLL_CTRL, + 0x0, PU_PLL_BIT | PU_RX_BIT | PU_TX_BIT); +} + +static int mvebu_a3700_comphy_reset(struct phy *phy) +{ + struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy); + u16 mask, data; + + dev_dbg(lane->dev, "resetting lane %d\n", lane->id); + + /* COMPHY reset for internal logic */ + comphy_lane_reg_set(lane, COMPHY_SFT_RESET, + SFT_RST_NO_REG, SFT_RST_NO_REG); + + /* COMPHY register reset (cleared automatically) */ + comphy_lane_reg_set(lane, COMPHY_SFT_RESET, SFT_RST, SFT_RST); + + /* PIPE soft and register reset */ + data = PIPE_SOFT_RESET | PIPE_REG_RESET; + mask = data; + comphy_lane_reg_set(lane, COMPHY_PIPE_RST_CLK_CTRL, data, mask); + + /* Release PIPE register reset */ + comphy_lane_reg_set(lane, COMPHY_PIPE_RST_CLK_CTRL, + 0x0, PIPE_REG_RESET); + + /* Reset SB configuration register (only for lanes 0 and 1) */ + if (lane->id == 0 || lane->id == 1) { + u32 mask, data; + + data = PIN_RESET_CORE_BIT | PIN_RESET_COMPHY_BIT | + PIN_PU_PLL_BIT | PIN_PU_RX_BIT | PIN_PU_TX_BIT; + mask = data | PIN_PU_IVREF_BIT | PIN_TX_IDLE_BIT; + comphy_periph_reg_set(lane, COMPHY_PHY_CFG1, data, mask); + } + + return 0; } -static int mvebu_a3700_comphy_get_fw_mode(int lane, int port, +static bool mvebu_a3700_comphy_check_mode(int lane, enum phy_mode mode, int submode) { @@ -128,38 +1141,40 @@ static int mvebu_a3700_comphy_get_fw_mode(int lane, int port, /* Unused PHY mux value is 0x0 */ if (mode == PHY_MODE_INVALID) - return -EINVAL; + return false; for (i = 0; i < n; i++) { if (mvebu_a3700_comphy_modes[i].lane == lane && - mvebu_a3700_comphy_modes[i].port == port && mvebu_a3700_comphy_modes[i].mode == mode && mvebu_a3700_comphy_modes[i].submode == submode) break; } if (i == n) - return -EINVAL; + return false; - return mvebu_a3700_comphy_modes[i].fw_mode; + return true; } static int mvebu_a3700_comphy_set_mode(struct phy *phy, enum phy_mode mode, int submode) { struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy); - int fw_mode; - - if (submode == PHY_INTERFACE_MODE_1000BASEX) - submode = PHY_INTERFACE_MODE_SGMII; - fw_mode = mvebu_a3700_comphy_get_fw_mode(lane->id, lane->port, mode, - submode); - if (fw_mode < 0) { + if (!mvebu_a3700_comphy_check_mode(lane->id, mode, submode)) { dev_err(lane->dev, "invalid COMPHY mode\n"); - return fw_mode; + return -EINVAL; } + /* Mode cannot be changed while the PHY is powered on */ + if (phy->power_count && + (lane->mode != mode || lane->submode != submode)) + return -EBUSY; + + /* If changing mode, ensure reset is called */ + if (lane->mode != PHY_MODE_INVALID && lane->mode != mode) + lane->needs_reset = true; + /* Just remember the mode, ->power_on() will do the real setup */ lane->mode = mode; lane->submode = submode; @@ -170,75 +1185,77 @@ static int mvebu_a3700_comphy_set_mode(struct phy *phy, enum phy_mode mode, static int mvebu_a3700_comphy_power_on(struct phy *phy) { struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy); - u32 fw_param; - int fw_mode; int ret; - fw_mode = mvebu_a3700_comphy_get_fw_mode(lane->id, lane->port, - lane->mode, lane->submode); - if (fw_mode < 0) { + if (!mvebu_a3700_comphy_check_mode(lane->id, lane->mode, + lane->submode)) { dev_err(lane->dev, "invalid COMPHY mode\n"); - return fw_mode; + return -EINVAL; + } + + if (lane->needs_reset) { + ret = mvebu_a3700_comphy_reset(phy); + if (ret) + return ret; + + lane->needs_reset = false; } switch (lane->mode) { case PHY_MODE_USB_HOST_SS: dev_dbg(lane->dev, "set lane %d to USB3 host mode\n", lane->id); - fw_param = COMPHY_FW_MODE(fw_mode); - break; + return mvebu_a3700_comphy_usb3_power_on(lane); case PHY_MODE_SATA: dev_dbg(lane->dev, "set lane %d to SATA mode\n", lane->id); - fw_param = COMPHY_FW_MODE(fw_mode); - break; + return mvebu_a3700_comphy_sata_power_on(lane); case PHY_MODE_ETHERNET: - switch (lane->submode) { - case PHY_INTERFACE_MODE_SGMII: - dev_dbg(lane->dev, "set lane %d to SGMII mode\n", - lane->id); - fw_param = COMPHY_FW_NET(fw_mode, lane->port, - COMPHY_FW_SPEED_1_25G); - break; - case PHY_INTERFACE_MODE_2500BASEX: - dev_dbg(lane->dev, "set lane %d to 2500BASEX mode\n", - lane->id); - fw_param = COMPHY_FW_NET(fw_mode, lane->port, - COMPHY_FW_SPEED_3_125G); - break; - default: - dev_err(lane->dev, "unsupported PHY submode (%d)\n", - lane->submode); - return -ENOTSUPP; - } - break; + dev_dbg(lane->dev, "set lane %d to Ethernet mode\n", lane->id); + return mvebu_a3700_comphy_ethernet_power_on(lane); case PHY_MODE_PCIE: dev_dbg(lane->dev, "set lane %d to PCIe mode\n", lane->id); - fw_param = COMPHY_FW_PCIE(fw_mode, lane->port, - COMPHY_FW_SPEED_5G, - phy->attrs.bus_width); - break; + return mvebu_a3700_comphy_pcie_power_on(lane); default: dev_err(lane->dev, "unsupported PHY mode (%d)\n", lane->mode); - return -ENOTSUPP; + return -EOPNOTSUPP; } - - ret = mvebu_a3700_comphy_smc(COMPHY_SIP_POWER_ON, lane->id, fw_param); - if (ret == -EOPNOTSUPP) - dev_err(lane->dev, - "unsupported SMC call, try updating your firmware\n"); - - return ret; } static int mvebu_a3700_comphy_power_off(struct phy *phy) { struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy); - return mvebu_a3700_comphy_smc(COMPHY_SIP_POWER_OFF, lane->id, 0); + switch (lane->mode) { + case PHY_MODE_USB_HOST_SS: + /* + * The USB3 MAC sets the USB3 PHY to low state, so we do not + * need to power off USB3 PHY again. + */ + break; + + case PHY_MODE_SATA: + mvebu_a3700_comphy_sata_power_off(lane); + break; + + case PHY_MODE_ETHERNET: + mvebu_a3700_comphy_ethernet_power_off(lane); + break; + + case PHY_MODE_PCIE: + mvebu_a3700_comphy_pcie_power_off(lane); + break; + + default: + dev_err(lane->dev, "invalid COMPHY mode\n"); + return -EINVAL; + } + + return 0; } static const struct phy_ops mvebu_a3700_comphy_ops = { .power_on = mvebu_a3700_comphy_power_on, .power_off = mvebu_a3700_comphy_power_off, + .reset = mvebu_a3700_comphy_reset, .set_mode = mvebu_a3700_comphy_set_mode, .owner = THIS_MODULE, }; @@ -247,25 +1264,90 @@ static struct phy *mvebu_a3700_comphy_xlate(struct device *dev, struct of_phandle_args *args) { struct mvebu_a3700_comphy_lane *lane; + unsigned int port; struct phy *phy; - if (WARN_ON(args->args[0] >= MVEBU_A3700_COMPHY_PORTS)) - return ERR_PTR(-EINVAL); - phy = of_phy_simple_xlate(dev, args); if (IS_ERR(phy)) return phy; lane = phy_get_drvdata(phy); - lane->port = args->args[0]; + + port = args->args[0]; + if (port != 0 && (port != 1 || lane->id != 0)) { + dev_err(lane->dev, "invalid port number %u\n", port); + return ERR_PTR(-EINVAL); + } + + lane->invert_tx = args->args[1] & BIT(0); + lane->invert_rx = args->args[1] & BIT(1); return phy; } static int mvebu_a3700_comphy_probe(struct platform_device *pdev) { + struct mvebu_a3700_comphy_priv *priv; struct phy_provider *provider; struct device_node *child; + struct resource *res; + struct clk *clk; + int ret; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + spin_lock_init(&priv->lock); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "comphy"); + priv->comphy_regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->comphy_regs)) + return PTR_ERR(priv->comphy_regs); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "lane1_pcie_gbe"); + priv->lane1_phy_regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->lane1_phy_regs)) + return PTR_ERR(priv->lane1_phy_regs); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "lane0_usb3_gbe"); + priv->lane0_phy_regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->lane0_phy_regs)) + return PTR_ERR(priv->lane0_phy_regs); + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, + "lane2_sata_usb3"); + priv->lane2_phy_indirect = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(priv->lane2_phy_indirect)) + return PTR_ERR(priv->lane2_phy_indirect); + + /* + * Driver needs to know if reference xtal clock is 40MHz or 25MHz. + * Old DT bindings do not have xtal clk present. So do not fail here + * and expects that default 25MHz reference clock is used. + */ + clk = clk_get(&pdev->dev, "xtal"); + if (IS_ERR(clk)) { + if (PTR_ERR(clk) == -EPROBE_DEFER) + return -EPROBE_DEFER; + dev_warn(&pdev->dev, "missing 'xtal' clk (%ld)\n", + PTR_ERR(clk)); + } else { + ret = clk_prepare_enable(clk); + if (ret) { + dev_warn(&pdev->dev, "enabling xtal clk failed (%d)\n", + ret); + } else { + if (clk_get_rate(clk) == 40000000) + priv->xtal_is_40m = true; + clk_disable_unprepare(clk); + } + clk_put(clk); + } + + dev_set_drvdata(&pdev->dev, priv); for_each_available_child_of_node(pdev->dev.of_node, child) { struct mvebu_a3700_comphy_lane *lane; @@ -280,7 +1362,7 @@ static int mvebu_a3700_comphy_probe(struct platform_device *pdev) continue; } - if (lane_id >= MVEBU_A3700_COMPHY_LANES) { + if (lane_id >= 3) { dev_err(&pdev->dev, "invalid 'reg' property\n"); continue; } @@ -298,16 +1380,26 @@ static int mvebu_a3700_comphy_probe(struct platform_device *pdev) return PTR_ERR(phy); } + lane->priv = priv; lane->dev = &pdev->dev; lane->mode = PHY_MODE_INVALID; lane->submode = PHY_INTERFACE_MODE_NA; lane->id = lane_id; - lane->port = -1; + lane->invert_tx = false; + lane->invert_rx = false; phy_set_drvdata(phy, lane); + + /* + * To avoid relying on the bootloader/firmware configuration, + * power off all comphys. + */ + mvebu_a3700_comphy_reset(phy); + lane->needs_reset = false; } provider = devm_of_phy_provider_register(&pdev->dev, mvebu_a3700_comphy_xlate); + return PTR_ERR_OR_ZERO(provider); } @@ -327,5 +1419,7 @@ static struct platform_driver mvebu_a3700_comphy_driver = { module_platform_driver(mvebu_a3700_comphy_driver); MODULE_AUTHOR("Miquèl Raynal <miquel.raynal@bootlin.com>"); +MODULE_AUTHOR("Pali Rohár <pali@kernel.org>"); +MODULE_AUTHOR("Marek Behún <kabel@kernel.org>"); MODULE_DESCRIPTION("Common PHY driver for A3700"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/phy-core-mipi-dphy.c b/drivers/phy/phy-core-mipi-dphy.c index ccb4045685cd..929e86d6558e 100644 --- a/drivers/phy/phy-core-mipi-dphy.c +++ b/drivers/phy/phy-core-mipi-dphy.c @@ -64,10 +64,10 @@ int phy_mipi_dphy_get_default_config(unsigned long pixel_clock, cfg->hs_trail = max(4 * 8 * ui, 60000 + 4 * 4 * ui); cfg->init = 100; - cfg->lpx = 60000; + cfg->lpx = 50000; cfg->ta_get = 5 * cfg->lpx; cfg->ta_go = 4 * cfg->lpx; - cfg->ta_sure = 2 * cfg->lpx; + cfg->ta_sure = cfg->lpx; cfg->wakeup = 1000; cfg->hs_clk_rate = hs_clk_rate; diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c index a8ecd2e8442d..cacd32f6e0cc 100644 --- a/drivers/phy/qualcomm/phy-qcom-edp.c +++ b/drivers/phy/qualcomm/phy-qcom-edp.c @@ -335,9 +335,11 @@ static int qcom_edp_phy_power_on(struct phy *phy) writel(0x00, edp->tx0 + TXn_LANE_MODE_1); writel(0x00, edp->tx1 + TXn_LANE_MODE_1); - ret = qcom_edp_configure_ssc(edp); - if (ret) - return ret; + if (edp->dp_opts.ssc) { + ret = qcom_edp_configure_ssc(edp); + if (ret) + return ret; + } ret = qcom_edp_configure_pll(edp); if (ret) @@ -654,6 +656,7 @@ static int qcom_edp_phy_probe(struct platform_device *pdev) } static const struct of_device_id qcom_edp_phy_match_table[] = { + { .compatible = "qcom,sc7280-edp-phy" }, { .compatible = "qcom,sc8180x-edp-phy" }, { } }; diff --git a/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c b/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c index fec1da470d26..7bacc527fbad 100644 --- a/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c +++ b/drivers/phy/qualcomm/phy-qcom-ipq806x-usb.c @@ -10,6 +10,7 @@ #include <linux/delay.h> #include <linux/regmap.h> #include <linux/mfd/syscon.h> +#include <linux/bitfield.h> /* USB QSCRATCH Hardware registers */ #define QSCRATCH_GENERAL_CFG (0x08) @@ -74,20 +75,20 @@ PHY_PARAM_CTRL1_LOS_BIAS_MASK) #define PHY_PARAM_CTRL1_TX_FULL_SWING(x) \ - (((x) << 20) & PHY_PARAM_CTRL1_TX_FULL_SWING_MASK) + FIELD_PREP(PHY_PARAM_CTRL1_TX_FULL_SWING_MASK, (x)) #define PHY_PARAM_CTRL1_TX_DEEMPH_6DB(x) \ - (((x) << 14) & PHY_PARAM_CTRL1_TX_DEEMPH_6DB_MASK) + FIELD_PREP(PHY_PARAM_CTRL1_TX_DEEMPH_6DB_MASK, (x)) #define PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB(x) \ - (((x) << 8) & PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB_MASK) + FIELD_PREP(PHY_PARAM_CTRL1_TX_DEEMPH_3_5DB_MASK, x) #define PHY_PARAM_CTRL1_LOS_BIAS(x) \ - (((x) << 3) & PHY_PARAM_CTRL1_LOS_BIAS_MASK) + FIELD_PREP(PHY_PARAM_CTRL1_LOS_BIAS_MASK, (x)) /* RX OVRD IN HI bits */ #define RX_OVRD_IN_HI_RX_RESET_OVRD BIT(13) #define RX_OVRD_IN_HI_RX_RX_RESET BIT(12) #define RX_OVRD_IN_HI_RX_EQ_OVRD BIT(11) #define RX_OVRD_IN_HI_RX_EQ_MASK GENMASK(10, 7) -#define RX_OVRD_IN_HI_RX_EQ(x) ((x) << 8) +#define RX_OVRD_IN_HI_RX_EQ(x) FIELD_PREP(RX_OVRD_IN_HI_RX_EQ_MASK, (x)) #define RX_OVRD_IN_HI_RX_EQ_EN_OVRD BIT(7) #define RX_OVRD_IN_HI_RX_EQ_EN BIT(6) #define RX_OVRD_IN_HI_RX_LOS_FILTER_OVRD BIT(5) @@ -111,6 +112,9 @@ #define SS_CR_READ_REG BIT(0) #define SS_CR_WRITE_REG BIT(0) +#define LATCH_SLEEP 40 +#define LATCH_TIMEOUT 100 + struct usb_phy { void __iomem *base; struct device *dev; @@ -156,19 +160,9 @@ static inline void usb_phy_write_readback(struct usb_phy *phy_dwc3, static int wait_for_latch(void __iomem *addr) { - u32 retry = 10; - - while (true) { - if (!readl(addr)) - break; - - if (--retry == 0) - return -ETIMEDOUT; - - usleep_range(10, 20); - } + u32 val; - return 0; + return readl_poll_timeout(addr, val, !val, LATCH_SLEEP, LATCH_TIMEOUT); } /** diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c index 8ea87c69f463..b144ae1f729a 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c @@ -5978,6 +5978,9 @@ static const struct of_device_id qcom_qmp_phy_of_match_table[] = { .compatible = "qcom,sc8180x-qmp-ufs-phy", .data = &sm8150_ufsphy_cfg, }, { + .compatible = "qcom,sc8280xp-qmp-ufs-phy", + .data = &sm8350_ufsphy_cfg, + }, { .compatible = "qcom,sc8180x-qmp-usb3-phy", .data = &sm8150_usb3phy_cfg, }, { diff --git a/drivers/phy/qualcomm/phy-qcom-qusb2.c b/drivers/phy/qualcomm/phy-qcom-qusb2.c index 032d02bf50c5..7529a7e6e5df 100644 --- a/drivers/phy/qualcomm/phy-qcom-qusb2.c +++ b/drivers/phy/qualcomm/phy-qcom-qusb2.c @@ -912,6 +912,9 @@ static const struct of_device_id qusb2_phy_of_match_table[] = { .compatible = "qcom,ipq8074-qusb2-phy", .data = &msm8996_phy_cfg, }, { + .compatible = "qcom,msm8953-qusb2-phy", + .data = &msm8996_phy_cfg, + }, { .compatible = "qcom,msm8996-qusb2-phy", .data = &msm8996_phy_cfg, }, { diff --git a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c index 7e61202aa234..5d203784f75d 100644 --- a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c +++ b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c @@ -32,6 +32,7 @@ #define POR BIT(1) #define USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0 (0x54) +#define SIDDQ BIT(2) #define RETENABLEN BIT(3) #define FSEL_MASK GENMASK(6, 4) #define FSEL_DEFAULT (0x3 << 4) @@ -233,6 +234,9 @@ static int qcom_snps_hsphy_init(struct phy *phy) qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_UTMI_CTRL0, SLEEPM, SLEEPM); + qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0, + SIDDQ, 0); + qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_UTMI_CTRL5, POR, 0); @@ -275,6 +279,7 @@ static const struct phy_ops qcom_snps_hsphy_gen_ops = { static const struct of_device_id qcom_snps_hsphy_of_match_table[] = { { .compatible = "qcom,sm8150-usb-hs-phy", }, + { .compatible = "qcom,usb-snps-hs-5nm-phy", }, { .compatible = "qcom,usb-snps-hs-7nm-phy", }, { .compatible = "qcom,usb-snps-femto-v2-phy", }, { } diff --git a/drivers/phy/rockchip/Kconfig b/drivers/phy/rockchip/Kconfig index e812adad7242..9022e395c056 100644 --- a/drivers/phy/rockchip/Kconfig +++ b/drivers/phy/rockchip/Kconfig @@ -66,6 +66,14 @@ config PHY_ROCKCHIP_INNO_DSIDPHY Enable this to support the Rockchip MIPI/LVDS/TTL PHY with Innosilicon IP block. +config PHY_ROCKCHIP_NANENG_COMBO_PHY + tristate "Rockchip NANENG COMBO PHY Driver" + depends on ARCH_ROCKCHIP && OF + select GENERIC_PHY + help + Enable this to support the Rockchip PCIe/USB3.0/SATA/QSGMII + combo PHY with NaNeng IP block. + config PHY_ROCKCHIP_PCIE tristate "Rockchip PCIe PHY Driver" depends on (ARCH_ROCKCHIP && OF) || COMPILE_TEST diff --git a/drivers/phy/rockchip/Makefile b/drivers/phy/rockchip/Makefile index f0eec212b2aa..a5041efb5b8f 100644 --- a/drivers/phy/rockchip/Makefile +++ b/drivers/phy/rockchip/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_PHY_ROCKCHIP_INNO_CSIDPHY) += phy-rockchip-inno-csidphy.o obj-$(CONFIG_PHY_ROCKCHIP_INNO_DSIDPHY) += phy-rockchip-inno-dsidphy.o obj-$(CONFIG_PHY_ROCKCHIP_INNO_HDMI) += phy-rockchip-inno-hdmi.o obj-$(CONFIG_PHY_ROCKCHIP_INNO_USB2) += phy-rockchip-inno-usb2.o +obj-$(CONFIG_PHY_ROCKCHIP_NANENG_COMBO_PHY) += phy-rockchip-naneng-combphy.o obj-$(CONFIG_PHY_ROCKCHIP_PCIE) += phy-rockchip-pcie.o obj-$(CONFIG_PHY_ROCKCHIP_TYPEC) += phy-rockchip-typec.o obj-$(CONFIG_PHY_ROCKCHIP_USB) += phy-rockchip-usb.o diff --git a/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c b/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c new file mode 100644 index 000000000000..7b213825fb5d --- /dev/null +++ b/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c @@ -0,0 +1,581 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Rockchip PIPE USB3.0 PCIE SATA Combo Phy driver + * + * Copyright (C) 2021 Rockchip Electronics Co., Ltd. + */ + +#include <dt-bindings/phy/phy.h> +#include <linux/clk.h> +#include <linux/mfd/syscon.h> +#include <linux/of_device.h> +#include <linux/phy/phy.h> +#include <linux/regmap.h> +#include <linux/reset.h> +#include <linux/units.h> + +#define BIT_WRITEABLE_SHIFT 16 +#define REF_CLOCK_24MHz (24 * HZ_PER_MHZ) +#define REF_CLOCK_25MHz (25 * HZ_PER_MHZ) +#define REF_CLOCK_100MHz (100 * HZ_PER_MHZ) + +/* COMBO PHY REG */ +#define PHYREG6 0x14 +#define PHYREG6_PLL_DIV_MASK GENMASK(7, 6) +#define PHYREG6_PLL_DIV_SHIFT 6 +#define PHYREG6_PLL_DIV_2 1 + +#define PHYREG7 0x18 +#define PHYREG7_TX_RTERM_MASK GENMASK(7, 4) +#define PHYREG7_TX_RTERM_SHIFT 4 +#define PHYREG7_TX_RTERM_50OHM 8 +#define PHYREG7_RX_RTERM_MASK GENMASK(3, 0) +#define PHYREG7_RX_RTERM_SHIFT 0 +#define PHYREG7_RX_RTERM_44OHM 15 + +#define PHYREG8 0x1C +#define PHYREG8_SSC_EN BIT(4) + +#define PHYREG11 0x28 +#define PHYREG11_SU_TRIM_0_7 0xF0 + +#define PHYREG12 0x2C +#define PHYREG12_PLL_LPF_ADJ_VALUE 4 + +#define PHYREG13 0x30 +#define PHYREG13_RESISTER_MASK GENMASK(5, 4) +#define PHYREG13_RESISTER_SHIFT 0x4 +#define PHYREG13_RESISTER_HIGH_Z 3 +#define PHYREG13_CKRCV_AMP0 BIT(7) + +#define PHYREG14 0x34 +#define PHYREG14_CKRCV_AMP1 BIT(0) + +#define PHYREG15 0x38 +#define PHYREG15_CTLE_EN BIT(0) +#define PHYREG15_SSC_CNT_MASK GENMASK(7, 6) +#define PHYREG15_SSC_CNT_SHIFT 6 +#define PHYREG15_SSC_CNT_VALUE 1 + +#define PHYREG16 0x3C +#define PHYREG16_SSC_CNT_VALUE 0x5f + +#define PHYREG18 0x44 +#define PHYREG18_PLL_LOOP 0x32 + +#define PHYREG32 0x7C +#define PHYREG32_SSC_MASK GENMASK(7, 4) +#define PHYREG32_SSC_DIR_SHIFT 4 +#define PHYREG32_SSC_UPWARD 0 +#define PHYREG32_SSC_DOWNWARD 1 +#define PHYREG32_SSC_OFFSET_SHIFT 6 +#define PHYREG32_SSC_OFFSET_500PPM 1 + +#define PHYREG33 0x80 +#define PHYREG33_PLL_KVCO_MASK GENMASK(4, 2) +#define PHYREG33_PLL_KVCO_SHIFT 2 +#define PHYREG33_PLL_KVCO_VALUE 2 + +struct rockchip_combphy_priv; + +struct combphy_reg { + u16 offset; + u16 bitend; + u16 bitstart; + u16 disable; + u16 enable; +}; + +struct rockchip_combphy_grfcfg { + struct combphy_reg pcie_mode_set; + struct combphy_reg usb_mode_set; + struct combphy_reg sgmii_mode_set; + struct combphy_reg qsgmii_mode_set; + struct combphy_reg pipe_rxterm_set; + struct combphy_reg pipe_txelec_set; + struct combphy_reg pipe_txcomp_set; + struct combphy_reg pipe_clk_25m; + struct combphy_reg pipe_clk_100m; + struct combphy_reg pipe_phymode_sel; + struct combphy_reg pipe_rate_sel; + struct combphy_reg pipe_rxterm_sel; + struct combphy_reg pipe_txelec_sel; + struct combphy_reg pipe_txcomp_sel; + struct combphy_reg pipe_clk_ext; + struct combphy_reg pipe_sel_usb; + struct combphy_reg pipe_sel_qsgmii; + struct combphy_reg pipe_phy_status; + struct combphy_reg con0_for_pcie; + struct combphy_reg con1_for_pcie; + struct combphy_reg con2_for_pcie; + struct combphy_reg con3_for_pcie; + struct combphy_reg con0_for_sata; + struct combphy_reg con1_for_sata; + struct combphy_reg con2_for_sata; + struct combphy_reg con3_for_sata; + struct combphy_reg pipe_con0_for_sata; + struct combphy_reg pipe_xpcs_phy_ready; +}; + +struct rockchip_combphy_cfg { + const struct rockchip_combphy_grfcfg *grfcfg; + int (*combphy_cfg)(struct rockchip_combphy_priv *priv); +}; + +struct rockchip_combphy_priv { + u8 type; + void __iomem *mmio; + int num_clks; + struct clk_bulk_data *clks; + struct device *dev; + struct regmap *pipe_grf; + struct regmap *phy_grf; + struct phy *phy; + struct reset_control *phy_rst; + const struct rockchip_combphy_cfg *cfg; + bool enable_ssc; + bool ext_refclk; + struct clk *refclk; +}; + +static void rockchip_combphy_updatel(struct rockchip_combphy_priv *priv, + int mask, int val, int reg) +{ + unsigned int temp; + + temp = readl(priv->mmio + reg); + temp = (temp & ~(mask)) | val; + writel(temp, priv->mmio + reg); +} + +static int rockchip_combphy_param_write(struct regmap *base, + const struct combphy_reg *reg, bool en) +{ + u32 val, mask, tmp; + + tmp = en ? reg->enable : reg->disable; + mask = GENMASK(reg->bitend, reg->bitstart); + val = (tmp << reg->bitstart) | (mask << BIT_WRITEABLE_SHIFT); + + return regmap_write(base, reg->offset, val); +} + +static u32 rockchip_combphy_is_ready(struct rockchip_combphy_priv *priv) +{ + const struct rockchip_combphy_grfcfg *cfg = priv->cfg->grfcfg; + u32 mask, val; + + mask = GENMASK(cfg->pipe_phy_status.bitend, + cfg->pipe_phy_status.bitstart); + + regmap_read(priv->phy_grf, cfg->pipe_phy_status.offset, &val); + val = (val & mask) >> cfg->pipe_phy_status.bitstart; + + return val; +} + +static int rockchip_combphy_init(struct phy *phy) +{ + struct rockchip_combphy_priv *priv = phy_get_drvdata(phy); + const struct rockchip_combphy_grfcfg *cfg = priv->cfg->grfcfg; + u32 val; + int ret; + + ret = clk_bulk_prepare_enable(priv->num_clks, priv->clks); + if (ret) { + dev_err(priv->dev, "failed to enable clks\n"); + return ret; + } + + switch (priv->type) { + case PHY_TYPE_PCIE: + case PHY_TYPE_USB3: + case PHY_TYPE_SATA: + case PHY_TYPE_SGMII: + case PHY_TYPE_QSGMII: + if (priv->cfg->combphy_cfg) + ret = priv->cfg->combphy_cfg(priv); + break; + default: + dev_err(priv->dev, "incompatible PHY type\n"); + ret = -EINVAL; + break; + } + + if (ret) { + dev_err(priv->dev, "failed to init phy for phy type %x\n", priv->type); + goto err_clk; + } + + ret = reset_control_deassert(priv->phy_rst); + if (ret) + goto err_clk; + + if (priv->type == PHY_TYPE_USB3) { + ret = readx_poll_timeout_atomic(rockchip_combphy_is_ready, + priv, val, + val == cfg->pipe_phy_status.enable, + 10, 1000); + if (ret) + dev_warn(priv->dev, "wait phy status ready timeout\n"); + } + + return 0; + +err_clk: + clk_bulk_disable_unprepare(priv->num_clks, priv->clks); + + return ret; +} + +static int rockchip_combphy_exit(struct phy *phy) +{ + struct rockchip_combphy_priv *priv = phy_get_drvdata(phy); + + clk_bulk_disable_unprepare(priv->num_clks, priv->clks); + reset_control_assert(priv->phy_rst); + + return 0; +} + +static const struct phy_ops rochchip_combphy_ops = { + .init = rockchip_combphy_init, + .exit = rockchip_combphy_exit, + .owner = THIS_MODULE, +}; + +static struct phy *rockchip_combphy_xlate(struct device *dev, struct of_phandle_args *args) +{ + struct rockchip_combphy_priv *priv = dev_get_drvdata(dev); + + if (args->args_count != 1) { + dev_err(dev, "invalid number of arguments\n"); + return ERR_PTR(-EINVAL); + } + + if (priv->type != PHY_NONE && priv->type != args->args[0]) + dev_warn(dev, "phy type select %d overwriting type %d\n", + args->args[0], priv->type); + + priv->type = args->args[0]; + + return priv->phy; +} + +static int rockchip_combphy_parse_dt(struct device *dev, struct rockchip_combphy_priv *priv) +{ + int i; + + priv->num_clks = devm_clk_bulk_get_all(dev, &priv->clks); + if (priv->num_clks < 1) + return -EINVAL; + + priv->refclk = NULL; + for (i = 0; i < priv->num_clks; i++) { + if (!strncmp(priv->clks[i].id, "ref", 3)) { + priv->refclk = priv->clks[i].clk; + break; + } + } + + if (!priv->refclk) { + dev_err(dev, "no refclk found\n"); + return -EINVAL; + } + + priv->pipe_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,pipe-grf"); + if (IS_ERR(priv->pipe_grf)) { + dev_err(dev, "failed to find peri_ctrl pipe-grf regmap\n"); + return PTR_ERR(priv->pipe_grf); + } + + priv->phy_grf = syscon_regmap_lookup_by_phandle(dev->of_node, "rockchip,pipe-phy-grf"); + if (IS_ERR(priv->phy_grf)) { + dev_err(dev, "failed to find peri_ctrl pipe-phy-grf regmap\n"); + return PTR_ERR(priv->phy_grf); + } + + priv->enable_ssc = device_property_present(dev, "rockchip,enable-ssc"); + + priv->ext_refclk = device_property_present(dev, "rockchip,ext-refclk"); + + priv->phy_rst = devm_reset_control_array_get_exclusive(dev); + if (IS_ERR(priv->phy_rst)) + return dev_err_probe(dev, PTR_ERR(priv->phy_rst), "failed to get phy reset\n"); + + return 0; +} + +static int rockchip_combphy_probe(struct platform_device *pdev) +{ + struct phy_provider *phy_provider; + struct device *dev = &pdev->dev; + struct rockchip_combphy_priv *priv; + const struct rockchip_combphy_cfg *phy_cfg; + struct resource *res; + int ret; + + phy_cfg = of_device_get_match_data(dev); + if (!phy_cfg) { + dev_err(dev, "no OF match data provided\n"); + return -EINVAL; + } + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->mmio = devm_platform_get_and_ioremap_resource(pdev, 0, &res); + if (IS_ERR(priv->mmio)) { + ret = PTR_ERR(priv->mmio); + return ret; + } + + priv->dev = dev; + priv->type = PHY_NONE; + priv->cfg = phy_cfg; + + ret = rockchip_combphy_parse_dt(dev, priv); + if (ret) + return ret; + + ret = reset_control_assert(priv->phy_rst); + if (ret) { + dev_err(dev, "failed to reset phy\n"); + return ret; + } + + priv->phy = devm_phy_create(dev, NULL, &rochchip_combphy_ops); + if (IS_ERR(priv->phy)) { + dev_err(dev, "failed to create combphy\n"); + return PTR_ERR(priv->phy); + } + + dev_set_drvdata(dev, priv); + phy_set_drvdata(priv->phy, priv); + + phy_provider = devm_of_phy_provider_register(dev, rockchip_combphy_xlate); + + return PTR_ERR_OR_ZERO(phy_provider); +} + +static int rk3568_combphy_cfg(struct rockchip_combphy_priv *priv) +{ + const struct rockchip_combphy_grfcfg *cfg = priv->cfg->grfcfg; + unsigned long rate; + u32 val; + + switch (priv->type) { + case PHY_TYPE_PCIE: + /* Set SSC downward spread spectrum. */ + rockchip_combphy_updatel(priv, PHYREG32_SSC_MASK, + PHYREG32_SSC_DOWNWARD << PHYREG32_SSC_DIR_SHIFT, + PHYREG32); + + rockchip_combphy_param_write(priv->phy_grf, &cfg->con0_for_pcie, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->con1_for_pcie, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->con2_for_pcie, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->con3_for_pcie, true); + break; + + case PHY_TYPE_USB3: + /* Set SSC downward spread spectrum. */ + rockchip_combphy_updatel(priv, PHYREG32_SSC_MASK, + PHYREG32_SSC_DOWNWARD << PHYREG32_SSC_DIR_SHIFT, + PHYREG32); + + /* Enable adaptive CTLE for USB3.0 Rx. */ + val = readl(priv->mmio + PHYREG15); + val |= PHYREG15_CTLE_EN; + writel(val, priv->mmio + PHYREG15); + + /* Set PLL KVCO fine tuning signals. */ + rockchip_combphy_updatel(priv, PHYREG33_PLL_KVCO_MASK, + PHYREG33_PLL_KVCO_VALUE << PHYREG33_PLL_KVCO_SHIFT, + PHYREG33); + + /* Enable controlling random jitter. */ + writel(PHYREG12_PLL_LPF_ADJ_VALUE, priv->mmio + PHYREG12); + + /* Set PLL input clock divider 1/2. */ + rockchip_combphy_updatel(priv, PHYREG6_PLL_DIV_MASK, + PHYREG6_PLL_DIV_2 << PHYREG6_PLL_DIV_SHIFT, + PHYREG6); + + writel(PHYREG18_PLL_LOOP, priv->mmio + PHYREG18); + writel(PHYREG11_SU_TRIM_0_7, priv->mmio + PHYREG11); + + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_sel_usb, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_txcomp_sel, false); + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_txelec_sel, false); + rockchip_combphy_param_write(priv->phy_grf, &cfg->usb_mode_set, true); + break; + + case PHY_TYPE_SATA: + /* Enable adaptive CTLE for SATA Rx. */ + val = readl(priv->mmio + PHYREG15); + val |= PHYREG15_CTLE_EN; + writel(val, priv->mmio + PHYREG15); + /* + * Set tx_rterm=50ohm and rx_rterm=44ohm for SATA. + * 0: 60ohm, 8: 50ohm 15: 44ohm (by step abort 1ohm) + */ + val = PHYREG7_TX_RTERM_50OHM << PHYREG7_TX_RTERM_SHIFT; + val |= PHYREG7_RX_RTERM_44OHM << PHYREG7_RX_RTERM_SHIFT; + writel(val, priv->mmio + PHYREG7); + + rockchip_combphy_param_write(priv->phy_grf, &cfg->con0_for_sata, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->con1_for_sata, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->con2_for_sata, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->con3_for_sata, true); + rockchip_combphy_param_write(priv->pipe_grf, &cfg->pipe_con0_for_sata, true); + break; + + case PHY_TYPE_SGMII: + rockchip_combphy_param_write(priv->pipe_grf, &cfg->pipe_xpcs_phy_ready, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_phymode_sel, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_sel_qsgmii, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->sgmii_mode_set, true); + break; + + case PHY_TYPE_QSGMII: + rockchip_combphy_param_write(priv->pipe_grf, &cfg->pipe_xpcs_phy_ready, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_phymode_sel, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_rate_sel, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_sel_qsgmii, true); + rockchip_combphy_param_write(priv->phy_grf, &cfg->qsgmii_mode_set, true); + break; + + default: + dev_err(priv->dev, "incompatible PHY type\n"); + return -EINVAL; + } + + rate = clk_get_rate(priv->refclk); + + switch (rate) { + case REF_CLOCK_24MHz: + if (priv->type == PHY_TYPE_USB3 || priv->type == PHY_TYPE_SATA) { + /* Set ssc_cnt[9:0]=0101111101 & 31.5KHz. */ + val = PHYREG15_SSC_CNT_VALUE << PHYREG15_SSC_CNT_SHIFT; + rockchip_combphy_updatel(priv, PHYREG15_SSC_CNT_MASK, + val, PHYREG15); + + writel(PHYREG16_SSC_CNT_VALUE, priv->mmio + PHYREG16); + } + break; + + case REF_CLOCK_25MHz: + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_clk_25m, true); + break; + + case REF_CLOCK_100MHz: + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_clk_100m, true); + if (priv->type == PHY_TYPE_PCIE) { + /* PLL KVCO fine tuning. */ + val = PHYREG33_PLL_KVCO_VALUE << PHYREG33_PLL_KVCO_SHIFT; + rockchip_combphy_updatel(priv, PHYREG33_PLL_KVCO_MASK, + val, PHYREG33); + + /* Enable controlling random jitter. */ + writel(PHYREG12_PLL_LPF_ADJ_VALUE, priv->mmio + PHYREG12); + + val = PHYREG6_PLL_DIV_2 << PHYREG6_PLL_DIV_SHIFT; + rockchip_combphy_updatel(priv, PHYREG6_PLL_DIV_MASK, + val, PHYREG6); + + writel(PHYREG18_PLL_LOOP, priv->mmio + PHYREG18); + writel(PHYREG11_SU_TRIM_0_7, priv->mmio + PHYREG11); + } else if (priv->type == PHY_TYPE_SATA) { + /* downward spread spectrum +500ppm */ + val = PHYREG32_SSC_DOWNWARD << PHYREG32_SSC_DIR_SHIFT; + val |= PHYREG32_SSC_OFFSET_500PPM << PHYREG32_SSC_OFFSET_SHIFT; + rockchip_combphy_updatel(priv, PHYREG32_SSC_MASK, val, PHYREG32); + } + break; + + default: + dev_err(priv->dev, "unsupported rate: %lu\n", rate); + return -EINVAL; + } + + if (priv->ext_refclk) { + rockchip_combphy_param_write(priv->phy_grf, &cfg->pipe_clk_ext, true); + if (priv->type == PHY_TYPE_PCIE && rate == REF_CLOCK_100MHz) { + val = PHYREG13_RESISTER_HIGH_Z << PHYREG13_RESISTER_SHIFT; + val |= PHYREG13_CKRCV_AMP0; + rockchip_combphy_updatel(priv, PHYREG13_RESISTER_MASK, val, PHYREG13); + + val = readl(priv->mmio + PHYREG14); + val |= PHYREG14_CKRCV_AMP1; + writel(val, priv->mmio + PHYREG14); + } + } + + if (priv->enable_ssc) { + val = readl(priv->mmio + PHYREG8); + val |= PHYREG8_SSC_EN; + writel(val, priv->mmio + PHYREG8); + } + + return 0; +} + +static const struct rockchip_combphy_grfcfg rk3568_combphy_grfcfgs = { + /* pipe-phy-grf */ + .pcie_mode_set = { 0x0000, 5, 0, 0x00, 0x11 }, + .usb_mode_set = { 0x0000, 5, 0, 0x00, 0x04 }, + .sgmii_mode_set = { 0x0000, 5, 0, 0x00, 0x01 }, + .qsgmii_mode_set = { 0x0000, 5, 0, 0x00, 0x21 }, + .pipe_rxterm_set = { 0x0000, 12, 12, 0x00, 0x01 }, + .pipe_txelec_set = { 0x0004, 1, 1, 0x00, 0x01 }, + .pipe_txcomp_set = { 0x0004, 4, 4, 0x00, 0x01 }, + .pipe_clk_25m = { 0x0004, 14, 13, 0x00, 0x01 }, + .pipe_clk_100m = { 0x0004, 14, 13, 0x00, 0x02 }, + .pipe_phymode_sel = { 0x0008, 1, 1, 0x00, 0x01 }, + .pipe_rate_sel = { 0x0008, 2, 2, 0x00, 0x01 }, + .pipe_rxterm_sel = { 0x0008, 8, 8, 0x00, 0x01 }, + .pipe_txelec_sel = { 0x0008, 12, 12, 0x00, 0x01 }, + .pipe_txcomp_sel = { 0x0008, 15, 15, 0x00, 0x01 }, + .pipe_clk_ext = { 0x000c, 9, 8, 0x02, 0x01 }, + .pipe_sel_usb = { 0x000c, 14, 13, 0x00, 0x01 }, + .pipe_sel_qsgmii = { 0x000c, 15, 13, 0x00, 0x07 }, + .pipe_phy_status = { 0x0034, 6, 6, 0x01, 0x00 }, + .con0_for_pcie = { 0x0000, 15, 0, 0x00, 0x1000 }, + .con1_for_pcie = { 0x0004, 15, 0, 0x00, 0x0000 }, + .con2_for_pcie = { 0x0008, 15, 0, 0x00, 0x0101 }, + .con3_for_pcie = { 0x000c, 15, 0, 0x00, 0x0200 }, + .con0_for_sata = { 0x0000, 15, 0, 0x00, 0x0119 }, + .con1_for_sata = { 0x0004, 15, 0, 0x00, 0x0040 }, + .con2_for_sata = { 0x0008, 15, 0, 0x00, 0x80c3 }, + .con3_for_sata = { 0x000c, 15, 0, 0x00, 0x4407 }, + /* pipe-grf */ + .pipe_con0_for_sata = { 0x0000, 15, 0, 0x00, 0x2220 }, + .pipe_xpcs_phy_ready = { 0x0040, 2, 2, 0x00, 0x01 }, +}; + +static const struct rockchip_combphy_cfg rk3568_combphy_cfgs = { + .grfcfg = &rk3568_combphy_grfcfgs, + .combphy_cfg = rk3568_combphy_cfg, +}; + +static const struct of_device_id rockchip_combphy_of_match[] = { + { + .compatible = "rockchip,rk3568-naneng-combphy", + .data = &rk3568_combphy_cfgs, + }, + { }, +}; +MODULE_DEVICE_TABLE(of, rockchip_combphy_of_match); + +static struct platform_driver rockchip_combphy_driver = { + .probe = rockchip_combphy_probe, + .driver = { + .name = "rockchip-naneng-combphy", + .of_match_table = rockchip_combphy_of_match, + }, +}; +module_platform_driver(rockchip_combphy_driver); + +MODULE_DESCRIPTION("Rockchip NANENG COMBPHY driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/ti/phy-tusb1210.c b/drivers/phy/ti/phy-tusb1210.c index 15c1c79e5c29..a0cdbcadf09e 100644 --- a/drivers/phy/ti/phy-tusb1210.c +++ b/drivers/phy/ti/phy-tusb1210.c @@ -8,24 +8,93 @@ */ #include <linux/module.h> #include <linux/bitfield.h> +#include <linux/delay.h> #include <linux/ulpi/driver.h> #include <linux/ulpi/regs.h> #include <linux/gpio/consumer.h> #include <linux/phy/ulpi_phy.h> - -#define TUSB1210_VENDOR_SPECIFIC2 0x80 -#define TUSB1210_VENDOR_SPECIFIC2_IHSTX_MASK GENMASK(3, 0) -#define TUSB1210_VENDOR_SPECIFIC2_ZHSDRV_MASK GENMASK(5, 4) -#define TUSB1210_VENDOR_SPECIFIC2_DP_MASK BIT(6) +#include <linux/power_supply.h> +#include <linux/workqueue.h> + +#define TUSB1211_POWER_CONTROL 0x3d +#define TUSB1211_POWER_CONTROL_SET 0x3e +#define TUSB1211_POWER_CONTROL_CLEAR 0x3f +#define TUSB1211_POWER_CONTROL_SW_CONTROL BIT(0) +#define TUSB1211_POWER_CONTROL_DET_COMP BIT(1) +#define TUSB1211_POWER_CONTROL_DP_VSRC_EN BIT(6) + +#define TUSB1210_VENDOR_SPECIFIC2 0x80 +#define TUSB1210_VENDOR_SPECIFIC2_IHSTX_MASK GENMASK(3, 0) +#define TUSB1210_VENDOR_SPECIFIC2_ZHSDRV_MASK GENMASK(5, 4) +#define TUSB1210_VENDOR_SPECIFIC2_DP_MASK BIT(6) + +#define TUSB1211_VENDOR_SPECIFIC3 0x85 +#define TUSB1211_VENDOR_SPECIFIC3_SET 0x86 +#define TUSB1211_VENDOR_SPECIFIC3_CLEAR 0x87 +#define TUSB1211_VENDOR_SPECIFIC3_SW_USB_DET BIT(4) +#define TUSB1211_VENDOR_SPECIFIC3_CHGD_IDP_SRC_EN BIT(6) + +#define TUSB1210_RESET_TIME_MS 50 + +#define TUSB1210_CHG_DET_MAX_RETRIES 5 + +/* TUSB1210 charger detection work states */ +enum tusb1210_chg_det_state { + TUSB1210_CHG_DET_CONNECTING, + TUSB1210_CHG_DET_START_DET, + TUSB1210_CHG_DET_READ_DET, + TUSB1210_CHG_DET_FINISH_DET, + TUSB1210_CHG_DET_CONNECTED, + TUSB1210_CHG_DET_DISCONNECTING, + TUSB1210_CHG_DET_DISCONNECTING_DONE, + TUSB1210_CHG_DET_DISCONNECTED, +}; struct tusb1210 { struct ulpi *ulpi; struct phy *phy; struct gpio_desc *gpio_reset; struct gpio_desc *gpio_cs; + u8 otg_ctrl; u8 vendor_specific2; +#ifdef CONFIG_POWER_SUPPLY + enum power_supply_usb_type chg_type; + enum tusb1210_chg_det_state chg_det_state; + int chg_det_retries; + struct delayed_work chg_det_work; + struct notifier_block psy_nb; + struct power_supply *psy; + struct power_supply *charger; +#endif }; +static int tusb1210_ulpi_write(struct tusb1210 *tusb, u8 reg, u8 val) +{ + int ret; + + ret = ulpi_write(tusb->ulpi, reg, val); + if (ret) + dev_err(&tusb->ulpi->dev, "error %d writing val 0x%02x to reg 0x%02x\n", + ret, val, reg); + + return ret; +} + +static int tusb1210_ulpi_read(struct tusb1210 *tusb, u8 reg, u8 *val) +{ + int ret; + + ret = ulpi_read(tusb->ulpi, reg); + if (ret >= 0) { + *val = ret; + ret = 0; + } else { + dev_err(&tusb->ulpi->dev, "error %d reading reg 0x%02x\n", ret, reg); + } + + return ret; +} + static int tusb1210_power_on(struct phy *phy) { struct tusb1210 *tusb = phy_get_drvdata(phy); @@ -33,12 +102,11 @@ static int tusb1210_power_on(struct phy *phy) gpiod_set_value_cansleep(tusb->gpio_reset, 1); gpiod_set_value_cansleep(tusb->gpio_cs, 1); - /* Restore the optional eye diagram optimization value */ - if (tusb->vendor_specific2) - ulpi_write(tusb->ulpi, TUSB1210_VENDOR_SPECIFIC2, - tusb->vendor_specific2); + msleep(TUSB1210_RESET_TIME_MS); - return 0; + /* Restore the optional eye diagram optimization value */ + return tusb1210_ulpi_write(tusb, TUSB1210_VENDOR_SPECIFIC2, + tusb->vendor_specific2); } static int tusb1210_power_off(struct phy *phy) @@ -55,35 +123,357 @@ static int tusb1210_set_mode(struct phy *phy, enum phy_mode mode, int submode) { struct tusb1210 *tusb = phy_get_drvdata(phy); int ret; + u8 reg; - ret = ulpi_read(tusb->ulpi, ULPI_OTG_CTRL); + ret = tusb1210_ulpi_read(tusb, ULPI_OTG_CTRL, ®); if (ret < 0) return ret; switch (mode) { case PHY_MODE_USB_HOST: - ret |= (ULPI_OTG_CTRL_DRVVBUS_EXT + reg |= (ULPI_OTG_CTRL_DRVVBUS_EXT | ULPI_OTG_CTRL_ID_PULLUP | ULPI_OTG_CTRL_DP_PULLDOWN | ULPI_OTG_CTRL_DM_PULLDOWN); - ulpi_write(tusb->ulpi, ULPI_OTG_CTRL, ret); - ret |= ULPI_OTG_CTRL_DRVVBUS; + tusb1210_ulpi_write(tusb, ULPI_OTG_CTRL, reg); + reg |= ULPI_OTG_CTRL_DRVVBUS; break; case PHY_MODE_USB_DEVICE: - ret &= ~(ULPI_OTG_CTRL_DRVVBUS + reg &= ~(ULPI_OTG_CTRL_DRVVBUS | ULPI_OTG_CTRL_DP_PULLDOWN | ULPI_OTG_CTRL_DM_PULLDOWN); - ulpi_write(tusb->ulpi, ULPI_OTG_CTRL, ret); - ret &= ~ULPI_OTG_CTRL_DRVVBUS_EXT; + tusb1210_ulpi_write(tusb, ULPI_OTG_CTRL, reg); + reg &= ~ULPI_OTG_CTRL_DRVVBUS_EXT; break; default: /* nothing */ return 0; } - return ulpi_write(tusb->ulpi, ULPI_OTG_CTRL, ret); + tusb->otg_ctrl = reg; + return tusb1210_ulpi_write(tusb, ULPI_OTG_CTRL, reg); } +#ifdef CONFIG_POWER_SUPPLY +const char * const tusb1210_chg_det_states[] = { + "CHG_DET_CONNECTING", + "CHG_DET_START_DET", + "CHG_DET_READ_DET", + "CHG_DET_FINISH_DET", + "CHG_DET_CONNECTED", + "CHG_DET_DISCONNECTING", + "CHG_DET_DISCONNECTING_DONE", + "CHG_DET_DISCONNECTED", +}; + +static void tusb1210_reset(struct tusb1210 *tusb) +{ + gpiod_set_value_cansleep(tusb->gpio_reset, 0); + usleep_range(200, 500); + gpiod_set_value_cansleep(tusb->gpio_reset, 1); +} + +static void tusb1210_chg_det_set_type(struct tusb1210 *tusb, + enum power_supply_usb_type type) +{ + dev_dbg(&tusb->ulpi->dev, "charger type: %d\n", type); + tusb->chg_type = type; + tusb->chg_det_retries = 0; + power_supply_changed(tusb->psy); +} + +static void tusb1210_chg_det_set_state(struct tusb1210 *tusb, + enum tusb1210_chg_det_state new_state, + int delay_ms) +{ + if (delay_ms) + dev_dbg(&tusb->ulpi->dev, "chg_det new state %s in %d ms\n", + tusb1210_chg_det_states[new_state], delay_ms); + + tusb->chg_det_state = new_state; + mod_delayed_work(system_long_wq, &tusb->chg_det_work, + msecs_to_jiffies(delay_ms)); +} + +static void tusb1210_chg_det_handle_ulpi_error(struct tusb1210 *tusb) +{ + tusb1210_reset(tusb); + if (tusb->chg_det_retries < TUSB1210_CHG_DET_MAX_RETRIES) { + tusb->chg_det_retries++; + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_START_DET, + TUSB1210_RESET_TIME_MS); + } else { + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_FINISH_DET, + TUSB1210_RESET_TIME_MS); + } +} + +/* + * Boards using a TUSB121x for charger-detection have 3 power_supply class devs: + * + * tusb1211-charger-detect(1) -> charger -> fuel-gauge + * + * To determine if an USB charger is connected to the board, the online prop of + * the charger psy needs to be read. Since the tusb1211-charger-detect psy is + * the start of the supplier -> supplied-to chain, power_supply_am_i_supplied() + * cannot be used here. + * + * Instead, below is a list of the power_supply names of known chargers for + * these boards and the charger psy is looked up by name from this list. + * + * (1) modelling the external USB charger + */ +static const char * const tusb1210_chargers[] = { + "bq24190-charger", +}; + +static bool tusb1210_get_online(struct tusb1210 *tusb) +{ + union power_supply_propval val; + int i; + + for (i = 0; i < ARRAY_SIZE(tusb1210_chargers) && !tusb->charger; i++) + tusb->charger = power_supply_get_by_name(tusb1210_chargers[i]); + + if (!tusb->charger) + return false; + + if (power_supply_get_property(tusb->charger, POWER_SUPPLY_PROP_ONLINE, &val)) + return false; + + return val.intval; +} + +static void tusb1210_chg_det_work(struct work_struct *work) +{ + struct tusb1210 *tusb = container_of(work, struct tusb1210, chg_det_work.work); + bool vbus_present = tusb1210_get_online(tusb); + int ret; + u8 val; + + dev_dbg(&tusb->ulpi->dev, "chg_det state %s vbus_present %d\n", + tusb1210_chg_det_states[tusb->chg_det_state], vbus_present); + + switch (tusb->chg_det_state) { + case TUSB1210_CHG_DET_CONNECTING: + tusb->chg_type = POWER_SUPPLY_USB_TYPE_UNKNOWN; + tusb->chg_det_retries = 0; + /* Power on USB controller for ulpi_read()/_write() */ + ret = pm_runtime_resume_and_get(tusb->ulpi->dev.parent); + if (ret < 0) { + dev_err(&tusb->ulpi->dev, "error %d runtime-resuming\n", ret); + /* Should never happen, skip charger detection */ + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_CONNECTED, 0); + return; + } + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_START_DET, 0); + break; + case TUSB1210_CHG_DET_START_DET: + /* + * Use the builtin charger detection FSM to keep things simple. + * This only detects DCP / SDP. This is good enough for the few + * boards which actually rely on the phy for charger detection. + */ + mutex_lock(&tusb->phy->mutex); + ret = tusb1210_ulpi_write(tusb, TUSB1211_VENDOR_SPECIFIC3_SET, + TUSB1211_VENDOR_SPECIFIC3_SW_USB_DET); + mutex_unlock(&tusb->phy->mutex); + if (ret) { + tusb1210_chg_det_handle_ulpi_error(tusb); + break; + } + + /* Wait 400 ms for the charger detection FSM to finish */ + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_READ_DET, 400); + break; + case TUSB1210_CHG_DET_READ_DET: + mutex_lock(&tusb->phy->mutex); + ret = tusb1210_ulpi_read(tusb, TUSB1211_POWER_CONTROL, &val); + mutex_unlock(&tusb->phy->mutex); + if (ret) { + tusb1210_chg_det_handle_ulpi_error(tusb); + break; + } + + if (val & TUSB1211_POWER_CONTROL_DET_COMP) + tusb1210_chg_det_set_type(tusb, POWER_SUPPLY_USB_TYPE_DCP); + else + tusb1210_chg_det_set_type(tusb, POWER_SUPPLY_USB_TYPE_SDP); + + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_FINISH_DET, 0); + break; + case TUSB1210_CHG_DET_FINISH_DET: + mutex_lock(&tusb->phy->mutex); + + /* Set SW_CONTROL to stop the charger-det FSM */ + ret = tusb1210_ulpi_write(tusb, TUSB1211_POWER_CONTROL_SET, + TUSB1211_POWER_CONTROL_SW_CONTROL); + + /* Clear DP_VSRC_EN which may have been enabled by the charger-det FSM */ + ret |= tusb1210_ulpi_write(tusb, TUSB1211_POWER_CONTROL_CLEAR, + TUSB1211_POWER_CONTROL_DP_VSRC_EN); + + /* Clear CHGD_IDP_SRC_EN (may have been enabled by the charger-det FSM) */ + ret |= tusb1210_ulpi_write(tusb, TUSB1211_VENDOR_SPECIFIC3_CLEAR, + TUSB1211_VENDOR_SPECIFIC3_CHGD_IDP_SRC_EN); + + /* If any of the above fails reset the phy */ + if (ret) { + tusb1210_reset(tusb); + msleep(TUSB1210_RESET_TIME_MS); + } + + /* Restore phy-parameters and OTG_CTRL register */ + tusb1210_ulpi_write(tusb, ULPI_OTG_CTRL, tusb->otg_ctrl); + tusb1210_ulpi_write(tusb, TUSB1210_VENDOR_SPECIFIC2, + tusb->vendor_specific2); + + mutex_unlock(&tusb->phy->mutex); + + pm_runtime_put(tusb->ulpi->dev.parent); + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_CONNECTED, 0); + break; + case TUSB1210_CHG_DET_CONNECTED: + if (!vbus_present) + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_DISCONNECTING, 0); + break; + case TUSB1210_CHG_DET_DISCONNECTING: + /* + * The phy seems to take approx. 600ms longer then the charger + * chip (which is used to get vbus_present) to determine Vbus + * session end. Wait 800ms to ensure the phy has detected and + * signalled Vbus session end. + */ + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_DISCONNECTING_DONE, 800); + break; + case TUSB1210_CHG_DET_DISCONNECTING_DONE: + /* + * The phy often stops reacting to ulpi_read()/_write requests + * after a Vbus-session end. Reset it to work around this. + */ + tusb1210_reset(tusb); + tusb1210_chg_det_set_type(tusb, POWER_SUPPLY_USB_TYPE_UNKNOWN); + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_DISCONNECTED, 0); + break; + case TUSB1210_CHG_DET_DISCONNECTED: + if (vbus_present) + tusb1210_chg_det_set_state(tusb, TUSB1210_CHG_DET_CONNECTING, 0); + break; + } +} + +static int tusb1210_psy_notifier(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct tusb1210 *tusb = container_of(nb, struct tusb1210, psy_nb); + struct power_supply *psy = ptr; + + if (psy != tusb->psy && psy->desc->type == POWER_SUPPLY_TYPE_USB) + queue_delayed_work(system_long_wq, &tusb->chg_det_work, 0); + + return NOTIFY_OK; +} + +static int tusb1210_psy_get_prop(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct tusb1210 *tusb = power_supply_get_drvdata(psy); + + switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + val->intval = tusb1210_get_online(tusb); + break; + case POWER_SUPPLY_PROP_USB_TYPE: + val->intval = tusb->chg_type; + break; + case POWER_SUPPLY_PROP_CURRENT_MAX: + if (tusb->chg_type == POWER_SUPPLY_USB_TYPE_DCP) + val->intval = 2000000; + else + val->intval = 500000; + break; + default: + return -EINVAL; + } + + return 0; +} + +static const enum power_supply_usb_type tusb1210_psy_usb_types[] = { + POWER_SUPPLY_USB_TYPE_SDP, + POWER_SUPPLY_USB_TYPE_DCP, + POWER_SUPPLY_USB_TYPE_UNKNOWN, +}; + +static const enum power_supply_property tusb1210_psy_props[] = { + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_USB_TYPE, + POWER_SUPPLY_PROP_CURRENT_MAX, +}; + +static const struct power_supply_desc tusb1210_psy_desc = { + .name = "tusb1211-charger-detect", + .type = POWER_SUPPLY_TYPE_USB, + .usb_types = tusb1210_psy_usb_types, + .num_usb_types = ARRAY_SIZE(tusb1210_psy_usb_types), + .properties = tusb1210_psy_props, + .num_properties = ARRAY_SIZE(tusb1210_psy_props), + .get_property = tusb1210_psy_get_prop, +}; + +/* Setup charger detection if requested, on errors continue without chg-det */ +static void tusb1210_probe_charger_detect(struct tusb1210 *tusb) +{ + struct power_supply_config psy_cfg = { .drv_data = tusb }; + struct device *dev = &tusb->ulpi->dev; + int ret; + + if (!device_property_read_bool(dev->parent, "linux,phy_charger_detect")) + return; + + if (tusb->ulpi->id.product != 0x1508) { + dev_err(dev, "error charger detection is only supported on the TUSB1211\n"); + return; + } + + ret = tusb1210_ulpi_read(tusb, ULPI_OTG_CTRL, &tusb->otg_ctrl); + if (ret) + return; + + tusb->psy = power_supply_register(dev, &tusb1210_psy_desc, &psy_cfg); + if (IS_ERR(tusb->psy)) + return; + + /* + * Delay initial run by 2 seconds to allow the charger driver, + * which is used to determine vbus_present, to load. + */ + tusb->chg_det_state = TUSB1210_CHG_DET_DISCONNECTED; + INIT_DELAYED_WORK(&tusb->chg_det_work, tusb1210_chg_det_work); + queue_delayed_work(system_long_wq, &tusb->chg_det_work, 2 * HZ); + + tusb->psy_nb.notifier_call = tusb1210_psy_notifier; + power_supply_reg_notifier(&tusb->psy_nb); +} + +static void tusb1210_remove_charger_detect(struct tusb1210 *tusb) +{ + + if (!IS_ERR_OR_NULL(tusb->psy)) { + power_supply_unreg_notifier(&tusb->psy_nb); + cancel_delayed_work_sync(&tusb->chg_det_work); + power_supply_unregister(tusb->psy); + } + + if (tusb->charger) + power_supply_put(tusb->charger); +} +#else +static void tusb1210_probe_charger_detect(struct tusb1210 *tusb) { } +static void tusb1210_remove_charger_detect(struct tusb1210 *tusb) { } +#endif + static const struct phy_ops phy_ops = { .power_on = tusb1210_power_on, .power_off = tusb1210_power_off, @@ -95,11 +485,14 @@ static int tusb1210_probe(struct ulpi *ulpi) { struct tusb1210 *tusb; u8 val, reg; + int ret; tusb = devm_kzalloc(&ulpi->dev, sizeof(*tusb), GFP_KERNEL); if (!tusb) return -ENOMEM; + tusb->ulpi = ulpi; + tusb->gpio_reset = devm_gpiod_get_optional(&ulpi->dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(tusb->gpio_reset)) @@ -119,7 +512,9 @@ static int tusb1210_probe(struct ulpi *ulpi) * diagram optimization and DP/DM swap. */ - reg = ulpi_read(ulpi, TUSB1210_VENDOR_SPECIFIC2); + ret = tusb1210_ulpi_read(tusb, TUSB1210_VENDOR_SPECIFIC2, ®); + if (ret) + return ret; /* High speed output drive strength configuration */ if (!device_property_read_u8(&ulpi->dev, "ihstx", &val)) @@ -133,15 +528,18 @@ static int tusb1210_probe(struct ulpi *ulpi) if (!device_property_read_u8(&ulpi->dev, "datapolarity", &val)) u8p_replace_bits(®, val, (u8)TUSB1210_VENDOR_SPECIFIC2_DP_MASK); - ulpi_write(ulpi, TUSB1210_VENDOR_SPECIFIC2, reg); + ret = tusb1210_ulpi_write(tusb, TUSB1210_VENDOR_SPECIFIC2, reg); + if (ret) + return ret; + tusb->vendor_specific2 = reg; + tusb1210_probe_charger_detect(tusb); + tusb->phy = ulpi_phy_create(ulpi, &phy_ops); if (IS_ERR(tusb->phy)) return PTR_ERR(tusb->phy); - tusb->ulpi = ulpi; - phy_set_drvdata(tusb->phy, tusb); ulpi_set_drvdata(ulpi, tusb); return 0; @@ -152,6 +550,7 @@ static void tusb1210_remove(struct ulpi *ulpi) struct tusb1210 *tusb = ulpi_get_drvdata(ulpi); ulpi_phy_destroy(ulpi, tusb->phy); + tusb1210_remove_charger_detect(tusb); } #define TI_VENDOR_ID 0x0451 diff --git a/drivers/usb/host/xhci-mvebu.c b/drivers/usb/host/xhci-mvebu.c index 8ca1a235d164..60651a50770f 100644 --- a/drivers/usb/host/xhci-mvebu.c +++ b/drivers/usb/host/xhci-mvebu.c @@ -8,7 +8,6 @@ #include <linux/mbus.h> #include <linux/of.h> #include <linux/platform_device.h> -#include <linux/phy/phy.h> #include <linux/usb.h> #include <linux/usb/hcd.h> @@ -75,47 +74,6 @@ int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd) return 0; } -int xhci_mvebu_a3700_plat_setup(struct usb_hcd *hcd) -{ - struct xhci_hcd *xhci = hcd_to_xhci(hcd); - struct device *dev = hcd->self.controller; - struct phy *phy; - int ret; - - /* Old bindings miss the PHY handle */ - phy = of_phy_get(dev->of_node, "usb3-phy"); - if (IS_ERR(phy) && PTR_ERR(phy) == -EPROBE_DEFER) - return -EPROBE_DEFER; - else if (IS_ERR(phy)) - goto phy_out; - - ret = phy_init(phy); - if (ret) - goto phy_put; - - ret = phy_set_mode(phy, PHY_MODE_USB_HOST_SS); - if (ret) - goto phy_exit; - - ret = phy_power_on(phy); - if (ret == -EOPNOTSUPP) { - /* Skip initializatin of XHCI PHY when it is unsupported by firmware */ - dev_warn(dev, "PHY unsupported by firmware\n"); - xhci->quirks |= XHCI_SKIP_PHY_INIT; - } - if (ret) - goto phy_exit; - - phy_power_off(phy); -phy_exit: - phy_exit(phy); -phy_put: - of_phy_put(phy); -phy_out: - - return 0; -} - int xhci_mvebu_a3700_init_quirk(struct usb_hcd *hcd) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); diff --git a/drivers/usb/host/xhci-mvebu.h b/drivers/usb/host/xhci-mvebu.h index 01bf3fcb3eca..3be021793cc8 100644 --- a/drivers/usb/host/xhci-mvebu.h +++ b/drivers/usb/host/xhci-mvebu.h @@ -12,7 +12,6 @@ struct usb_hcd; #if IS_ENABLED(CONFIG_USB_XHCI_MVEBU) int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd); -int xhci_mvebu_a3700_plat_setup(struct usb_hcd *hcd); int xhci_mvebu_a3700_init_quirk(struct usb_hcd *hcd); #else static inline int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd) @@ -20,11 +19,6 @@ static inline int xhci_mvebu_mbus_init_quirk(struct usb_hcd *hcd) return 0; } -static inline int xhci_mvebu_a3700_plat_setup(struct usb_hcd *hcd) -{ - return 0; -} - static inline int xhci_mvebu_a3700_init_quirk(struct usb_hcd *hcd) { return 0; diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index dc570ce4e831..5810036ff363 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -44,16 +44,6 @@ static void xhci_priv_plat_start(struct usb_hcd *hcd) priv->plat_start(hcd); } -static int xhci_priv_plat_setup(struct usb_hcd *hcd) -{ - struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd); - - if (!priv->plat_setup) - return 0; - - return priv->plat_setup(hcd); -} - static int xhci_priv_init_quirk(struct usb_hcd *hcd) { struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd); @@ -121,7 +111,6 @@ static const struct xhci_plat_priv xhci_plat_marvell_armada = { }; static const struct xhci_plat_priv xhci_plat_marvell_armada3700 = { - .plat_setup = xhci_mvebu_a3700_plat_setup, .init_quirk = xhci_mvebu_a3700_init_quirk, }; @@ -341,14 +330,7 @@ static int xhci_plat_probe(struct platform_device *pdev) hcd->tpl_support = of_usb_host_tpl_support(sysdev->of_node); xhci->shared_hcd->tpl_support = hcd->tpl_support; - - if (priv) { - ret = xhci_priv_plat_setup(hcd); - if (ret) - goto disable_usb_phy; - } - - if ((xhci->quirks & XHCI_SKIP_PHY_INIT) || (priv && (priv->quirks & XHCI_SKIP_PHY_INIT))) + if (priv && (priv->quirks & XHCI_SKIP_PHY_INIT)) hcd->skip_phy_initialization = 1; if (priv && (priv->quirks & XHCI_SG_TRB_CACHE_SIZE_QUIRK)) diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h index 561d0b7bce09..1fb149d1fbce 100644 --- a/drivers/usb/host/xhci-plat.h +++ b/drivers/usb/host/xhci-plat.h @@ -13,7 +13,6 @@ struct xhci_plat_priv { const char *firmware_name; unsigned long long quirks; - int (*plat_setup)(struct usb_hcd *); void (*plat_start)(struct usb_hcd *); int (*init_quirk)(struct usb_hcd *); int (*suspend_quirk)(struct usb_hcd *); |