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yaml
---
r: 247225
b: refs/heads/master
c: 6e91410
h: refs/heads/master
i:
  247223: 2078295
v: v3
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Rafał Miłecki authored and John W. Linville committed Apr 28, 2011
1 parent eb73f38 commit 8c9c349
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Showing 2 changed files with 59 additions and 41 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: aac6af5534fade2b18682a0b9efad1a6c04c34c6
refs/heads/master: 6e914101d47c76e09b0568d094ef44257dd3d6e9
98 changes: 58 additions & 40 deletions trunk/drivers/ssb/driver_pcicore.c
Original file line number Diff line number Diff line change
Expand Up @@ -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)
{
Expand Down Expand Up @@ -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.
**************************************************/
Expand Down Expand Up @@ -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:
Expand Down

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