diff options
| author | Rafał Miłecki <zajec5@gmail.com> | 2011-04-27 17:39:47 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-04-28 14:53:21 -0400 |
| commit | 6e914101d47c76e09b0568d094ef44257dd3d6e9 (patch) | |
| tree | 0a768dbe25013a26ae0ad7a62efb56b673e88a7b /drivers | |
| parent | aac6af5534fade2b18682a0b9efad1a6c04c34c6 (diff) | |
| download | linux-6e914101d47c76e09b0568d094ef44257dd3d6e9.tar.bz2 | |
ssb: pci: separate workarounds
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ssb/driver_pcicore.c | 98 |
1 files changed, 58 insertions, 40 deletions
diff --git a/drivers/ssb/driver_pcicore.c b/drivers/ssb/driver_pcicore.c index dbda168e501b..adde4f060fd8 100644 --- a/drivers/ssb/driver_pcicore.c +++ b/drivers/ssb/driver_pcicore.c @@ -21,6 +21,8 @@ static u16 ssb_pcie_mdio_read(struct ssb_pcicore *pc, u8 device, u8 address); static void ssb_pcie_mdio_write(struct ssb_pcicore *pc, u8 device, u8 address, u16 data); +static void ssb_commit_settings(struct ssb_bus *bus); + static inline u32 pcicore_read32(struct ssb_pcicore *pc, u16 offset) { @@ -430,6 +432,60 @@ static void ssb_pcicore_serdes_workaround(struct ssb_pcicore *pc) ssb_pcie_mdio_write(pc, serdes_pll_device, 1, tmp & ~0x4000); } +static void ssb_pcicore_pci_setup_workarounds(struct ssb_pcicore *pc) +{ + struct ssb_device *pdev = pc->dev; + struct ssb_bus *bus = pdev->bus; + u32 tmp; + + tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); + tmp |= SSB_PCICORE_SBTOPCI_PREF; + tmp |= SSB_PCICORE_SBTOPCI_BURST; + pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); + + if (pdev->id.revision < 5) { + tmp = ssb_read32(pdev, SSB_IMCFGLO); + tmp &= ~SSB_IMCFGLO_SERTO; + tmp |= 2; + tmp &= ~SSB_IMCFGLO_REQTO; + tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT; + ssb_write32(pdev, SSB_IMCFGLO, tmp); + ssb_commit_settings(bus); + } else if (pdev->id.revision >= 11) { + tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); + tmp |= SSB_PCICORE_SBTOPCI_MRM; + pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); + } +} + +static void ssb_pcicore_pcie_setup_workarounds(struct ssb_pcicore *pc) +{ + struct ssb_device *pdev = pc->dev; + u32 tmp; + + if ((pdev->id.revision == 0) || (pdev->id.revision == 1)) { + /* TLP Workaround register. */ + tmp = ssb_pcie_read(pc, 0x4); + tmp |= 0x8; + ssb_pcie_write(pc, 0x4, tmp); + } + if (pdev->id.revision == 0) { + const u8 serdes_rx_device = 0x1F; + + ssb_pcie_mdio_write(pc, serdes_rx_device, + 2 /* Timer */, 0x8128); + ssb_pcie_mdio_write(pc, serdes_rx_device, + 6 /* CDR */, 0x0100); + ssb_pcie_mdio_write(pc, serdes_rx_device, + 7 /* CDR BW */, 0x1466); + } else if (pdev->id.revision == 1) { + /* DLLP Link Control register. */ + tmp = ssb_pcie_read(pc, 0x100); + tmp |= 0x40; + ssb_pcie_write(pc, 0x100, tmp); + } +} + /************************************************** * Generic and Clientmode operation code. **************************************************/ @@ -646,48 +702,10 @@ int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc, if (pc->setup_done) goto out; if (pdev->id.coreid == SSB_DEV_PCI) { - tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); - tmp |= SSB_PCICORE_SBTOPCI_PREF; - tmp |= SSB_PCICORE_SBTOPCI_BURST; - pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); - - if (pdev->id.revision < 5) { - tmp = ssb_read32(pdev, SSB_IMCFGLO); - tmp &= ~SSB_IMCFGLO_SERTO; - tmp |= 2; - tmp &= ~SSB_IMCFGLO_REQTO; - tmp |= 3 << SSB_IMCFGLO_REQTO_SHIFT; - ssb_write32(pdev, SSB_IMCFGLO, tmp); - ssb_commit_settings(bus); - } else if (pdev->id.revision >= 11) { - tmp = pcicore_read32(pc, SSB_PCICORE_SBTOPCI2); - tmp |= SSB_PCICORE_SBTOPCI_MRM; - pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, tmp); - } + ssb_pcicore_pci_setup_workarounds(pc); } else { WARN_ON(pdev->id.coreid != SSB_DEV_PCIE); - //TODO: Better make defines for all these magic PCIE values. - if ((pdev->id.revision == 0) || (pdev->id.revision == 1)) { - /* TLP Workaround register. */ - tmp = ssb_pcie_read(pc, 0x4); - tmp |= 0x8; - ssb_pcie_write(pc, 0x4, tmp); - } - if (pdev->id.revision == 0) { - const u8 serdes_rx_device = 0x1F; - - ssb_pcie_mdio_write(pc, serdes_rx_device, - 2 /* Timer */, 0x8128); - ssb_pcie_mdio_write(pc, serdes_rx_device, - 6 /* CDR */, 0x0100); - ssb_pcie_mdio_write(pc, serdes_rx_device, - 7 /* CDR BW */, 0x1466); - } else if (pdev->id.revision == 1) { - /* DLLP Link Control register. */ - tmp = ssb_pcie_read(pc, 0x100); - tmp |= 0x40; - ssb_pcie_write(pc, 0x100, tmp); - } + ssb_pcicore_pcie_setup_workarounds(pc); } pc->setup_done = 1; out: |