diff options
Diffstat (limited to 'drivers/soc')
| -rw-r--r-- | drivers/soc/amlogic/Kconfig | 13 | ||||
| -rw-r--r-- | drivers/soc/amlogic/Makefile | 1 | ||||
| -rw-r--r-- | drivers/soc/amlogic/meson-secure-pwrc.c | 204 | ||||
| -rw-r--r-- | drivers/soc/renesas/Kconfig | 16 | ||||
| -rw-r--r-- | drivers/soc/renesas/rcar-sysc.h | 4 | ||||
| -rw-r--r-- | drivers/soc/renesas/renesas-soc.c | 2 | ||||
| -rw-r--r-- | drivers/soc/tegra/fuse/fuse-tegra30.c | 3 |
7 files changed, 231 insertions, 12 deletions
diff --git a/drivers/soc/amlogic/Kconfig b/drivers/soc/amlogic/Kconfig index bc2c912949bd..321c5e26a268 100644 --- a/drivers/soc/amlogic/Kconfig +++ b/drivers/soc/amlogic/Kconfig @@ -48,6 +48,19 @@ config MESON_EE_PM_DOMAINS Say yes to expose Amlogic Meson Everything-Else Power Domains as Generic Power Domains. +config MESON_SECURE_PM_DOMAINS + bool "Amlogic Meson Secure Power Domains driver" + depends on (ARCH_MESON || COMPILE_TEST) && MESON_SM + depends on PM && OF + depends on HAVE_ARM_SMCCC + default ARCH_MESON + select PM_GENERIC_DOMAINS + select PM_GENERIC_DOMAINS_OF + help + Support for the power controller on Amlogic A1/C1 series. + Say yes to expose Amlogic Meson Secure Power Domains as Generic + Power Domains. + config MESON_MX_SOCINFO bool "Amlogic Meson MX SoC Information driver" depends on ARCH_MESON || COMPILE_TEST diff --git a/drivers/soc/amlogic/Makefile b/drivers/soc/amlogic/Makefile index de79d044b545..7b8c5d323f5c 100644 --- a/drivers/soc/amlogic/Makefile +++ b/drivers/soc/amlogic/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_MESON_GX_SOCINFO) += meson-gx-socinfo.o obj-$(CONFIG_MESON_GX_PM_DOMAINS) += meson-gx-pwrc-vpu.o obj-$(CONFIG_MESON_MX_SOCINFO) += meson-mx-socinfo.o obj-$(CONFIG_MESON_EE_PM_DOMAINS) += meson-ee-pwrc.o +obj-$(CONFIG_MESON_SECURE_PM_DOMAINS) += meson-secure-pwrc.o diff --git a/drivers/soc/amlogic/meson-secure-pwrc.c b/drivers/soc/amlogic/meson-secure-pwrc.c new file mode 100644 index 000000000000..5fb29a475879 --- /dev/null +++ b/drivers/soc/amlogic/meson-secure-pwrc.c @@ -0,0 +1,204 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2019 Amlogic, Inc. + * Author: Jianxin Pan <jianxin.pan@amlogic.com> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/io.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/pm_domain.h> +#include <dt-bindings/power/meson-a1-power.h> +#include <linux/arm-smccc.h> +#include <linux/firmware/meson/meson_sm.h> + +#define PWRC_ON 1 +#define PWRC_OFF 0 + +struct meson_secure_pwrc_domain { + struct generic_pm_domain base; + unsigned int index; + struct meson_secure_pwrc *pwrc; +}; + +struct meson_secure_pwrc { + struct meson_secure_pwrc_domain *domains; + struct genpd_onecell_data xlate; + struct meson_sm_firmware *fw; +}; + +struct meson_secure_pwrc_domain_desc { + unsigned int index; + unsigned int flags; + char *name; + bool (*is_off)(struct meson_secure_pwrc_domain *pwrc_domain); +}; + +struct meson_secure_pwrc_domain_data { + unsigned int count; + struct meson_secure_pwrc_domain_desc *domains; +}; + +static bool pwrc_secure_is_off(struct meson_secure_pwrc_domain *pwrc_domain) +{ + int is_off = 1; + + if (meson_sm_call(pwrc_domain->pwrc->fw, SM_A1_PWRC_GET, &is_off, + pwrc_domain->index, 0, 0, 0, 0) < 0) + pr_err("failed to get power domain status\n"); + + return is_off; +} + +static int meson_secure_pwrc_off(struct generic_pm_domain *domain) +{ + int ret = 0; + struct meson_secure_pwrc_domain *pwrc_domain = + container_of(domain, struct meson_secure_pwrc_domain, base); + + if (meson_sm_call(pwrc_domain->pwrc->fw, SM_A1_PWRC_SET, NULL, + pwrc_domain->index, PWRC_OFF, 0, 0, 0) < 0) { + pr_err("failed to set power domain off\n"); + ret = -EINVAL; + } + + return ret; +} + +static int meson_secure_pwrc_on(struct generic_pm_domain *domain) +{ + int ret = 0; + struct meson_secure_pwrc_domain *pwrc_domain = + container_of(domain, struct meson_secure_pwrc_domain, base); + + if (meson_sm_call(pwrc_domain->pwrc->fw, SM_A1_PWRC_SET, NULL, + pwrc_domain->index, PWRC_ON, 0, 0, 0) < 0) { + pr_err("failed to set power domain on\n"); + ret = -EINVAL; + } + + return ret; +} + +#define SEC_PD(__name, __flag) \ +[PWRC_##__name##_ID] = \ +{ \ + .name = #__name, \ + .index = PWRC_##__name##_ID, \ + .is_off = pwrc_secure_is_off, \ + .flags = __flag, \ +} + +static struct meson_secure_pwrc_domain_desc a1_pwrc_domains[] = { + SEC_PD(DSPA, 0), + SEC_PD(DSPB, 0), + /* UART should keep working in ATF after suspend and before resume */ + SEC_PD(UART, GENPD_FLAG_ALWAYS_ON), + /* DMC is for DDR PHY ana/dig and DMC, and should be always on */ + SEC_PD(DMC, GENPD_FLAG_ALWAYS_ON), + SEC_PD(I2C, 0), + SEC_PD(PSRAM, 0), + SEC_PD(ACODEC, 0), + SEC_PD(AUDIO, 0), + SEC_PD(OTP, 0), + SEC_PD(DMA, 0), + SEC_PD(SD_EMMC, 0), + SEC_PD(RAMA, 0), + /* SRAMB is used as ATF runtime memory, and should be always on */ + SEC_PD(RAMB, GENPD_FLAG_ALWAYS_ON), + SEC_PD(IR, 0), + SEC_PD(SPICC, 0), + SEC_PD(SPIFC, 0), + SEC_PD(USB, 0), + /* NIC is for the Arm NIC-400 interconnect, and should be always on */ + SEC_PD(NIC, GENPD_FLAG_ALWAYS_ON), + SEC_PD(PDMIN, 0), + SEC_PD(RSA, 0), +}; + +static int meson_secure_pwrc_probe(struct platform_device *pdev) +{ + int i; + struct device_node *sm_np; + struct meson_secure_pwrc *pwrc; + const struct meson_secure_pwrc_domain_data *match; + + match = of_device_get_match_data(&pdev->dev); + if (!match) { + dev_err(&pdev->dev, "failed to get match data\n"); + return -ENODEV; + } + + sm_np = of_find_compatible_node(NULL, NULL, "amlogic,meson-gxbb-sm"); + if (!sm_np) { + dev_err(&pdev->dev, "no secure-monitor node\n"); + return -ENODEV; + } + + pwrc = devm_kzalloc(&pdev->dev, sizeof(*pwrc), GFP_KERNEL); + if (!pwrc) + return -ENOMEM; + + pwrc->fw = meson_sm_get(sm_np); + of_node_put(sm_np); + if (!pwrc->fw) + return -EPROBE_DEFER; + + pwrc->xlate.domains = devm_kcalloc(&pdev->dev, match->count, + sizeof(*pwrc->xlate.domains), + GFP_KERNEL); + if (!pwrc->xlate.domains) + return -ENOMEM; + + pwrc->domains = devm_kcalloc(&pdev->dev, match->count, + sizeof(*pwrc->domains), GFP_KERNEL); + if (!pwrc->domains) + return -ENOMEM; + + pwrc->xlate.num_domains = match->count; + platform_set_drvdata(pdev, pwrc); + + for (i = 0 ; i < match->count ; ++i) { + struct meson_secure_pwrc_domain *dom = &pwrc->domains[i]; + + if (!match->domains[i].index) + continue; + + dom->pwrc = pwrc; + dom->index = match->domains[i].index; + dom->base.name = match->domains[i].name; + dom->base.flags = match->domains[i].flags; + dom->base.power_on = meson_secure_pwrc_on; + dom->base.power_off = meson_secure_pwrc_off; + + pm_genpd_init(&dom->base, NULL, match->domains[i].is_off(dom)); + + pwrc->xlate.domains[i] = &dom->base; + } + + return of_genpd_add_provider_onecell(pdev->dev.of_node, &pwrc->xlate); +} + +static struct meson_secure_pwrc_domain_data meson_secure_a1_pwrc_data = { + .domains = a1_pwrc_domains, + .count = ARRAY_SIZE(a1_pwrc_domains), +}; + +static const struct of_device_id meson_secure_pwrc_match_table[] = { + { + .compatible = "amlogic,meson-a1-pwrc", + .data = &meson_secure_a1_pwrc_data, + }, + { /* sentinel */ } +}; + +static struct platform_driver meson_secure_pwrc_driver = { + .probe = meson_secure_pwrc_probe, + .driver = { + .name = "meson_secure_pwrc", + .of_match_table = meson_secure_pwrc_match_table, + }, +}; +builtin_platform_driver(meson_secure_pwrc_driver); diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig index ba2b8b51d2d9..7f154517b91c 100644 --- a/drivers/soc/renesas/Kconfig +++ b/drivers/soc/renesas/Kconfig @@ -193,19 +193,19 @@ config ARCH_R8A774C0 This enables support for the Renesas RZ/G2E SoC. config ARCH_R8A77950 - bool + bool "Renesas R-Car H3 ES1.x SoC Platform" + select ARCH_RCAR_GEN3 + select SYSC_R8A7795 + help + This enables support for the Renesas R-Car H3 SoC (revision 1.x). config ARCH_R8A77951 - bool - -config ARCH_R8A7795 - bool "Renesas R-Car H3 SoC Platform" - select ARCH_R8A77950 - select ARCH_R8A77951 + bool "Renesas R-Car H3 ES2.0+ SoC Platform" select ARCH_RCAR_GEN3 select SYSC_R8A7795 help - This enables support for the Renesas R-Car H3 SoC. + This enables support for the Renesas R-Car H3 SoC (revisions 2.0 and + later). config ARCH_R8A77960 bool "Renesas R-Car M3-W SoC Platform" diff --git a/drivers/soc/renesas/rcar-sysc.h b/drivers/soc/renesas/rcar-sysc.h index 8d074489fba9..0fc3b119930a 100644 --- a/drivers/soc/renesas/rcar-sysc.h +++ b/drivers/soc/renesas/rcar-sysc.h @@ -1,5 +1,5 @@ -/* SPDX-License-Identifier: GPL-2.0 - * +/* SPDX-License-Identifier: GPL-2.0 */ +/* * Renesas R-Car System Controller * * Copyright (C) 2016 Glider bvba diff --git a/drivers/soc/renesas/renesas-soc.c b/drivers/soc/renesas/renesas-soc.c index 850f5733dc88..35dba8b8814e 100644 --- a/drivers/soc/renesas/renesas-soc.c +++ b/drivers/soc/renesas/renesas-soc.c @@ -259,7 +259,7 @@ static const struct of_device_id renesas_socs[] __initconst = { #ifdef CONFIG_ARCH_R8A7794 { .compatible = "renesas,r8a7794", .data = &soc_rcar_e2 }, #endif -#ifdef CONFIG_ARCH_R8A7795 +#if defined(CONFIG_ARCH_R8A77950) || defined(CONFIG_ARCH_R8A77951) { .compatible = "renesas,r8a7795", .data = &soc_rcar_h3 }, #endif #ifdef CONFIG_ARCH_R8A77960 diff --git a/drivers/soc/tegra/fuse/fuse-tegra30.c b/drivers/soc/tegra/fuse/fuse-tegra30.c index f68f4e1c215d..e6037f900fb7 100644 --- a/drivers/soc/tegra/fuse/fuse-tegra30.c +++ b/drivers/soc/tegra/fuse/fuse-tegra30.c @@ -36,7 +36,8 @@ defined(CONFIG_ARCH_TEGRA_124_SOC) || \ defined(CONFIG_ARCH_TEGRA_132_SOC) || \ defined(CONFIG_ARCH_TEGRA_210_SOC) || \ - defined(CONFIG_ARCH_TEGRA_186_SOC) + defined(CONFIG_ARCH_TEGRA_186_SOC) || \ + defined(CONFIG_ARCH_TEGRA_194_SOC) static u32 tegra30_fuse_read_early(struct tegra_fuse *fuse, unsigned int offset) { if (WARN_ON(!fuse->base)) |