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| author | Paul Mundt <lethal@linux-sh.org> | 2010-08-20 13:39:22 +0200 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-08-20 13:39:22 +0200 |
| commit | 144c7494239f12d554806439a17ad8203c7b2d3a (patch) | |
| tree | def630d167f5e25ca926faf462653075a69c7566 /arch/sh/drivers/pci/pcie-sh7786.c | |
| parent | sh: sh2007/sh7757lcr defconfig reduction. (diff) | |
| parent | sh: Relax devfn constraints for SH7786 PCIe. (diff) | |
| download | linux-144c7494239f12d554806439a17ad8203c7b2d3a.tar.xz linux-144c7494239f12d554806439a17ad8203c7b2d3a.zip | |
Merge branch 'sh/pci-express-integration'
Diffstat (limited to 'arch/sh/drivers/pci/pcie-sh7786.c')
| -rw-r--r-- | arch/sh/drivers/pci/pcie-sh7786.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/arch/sh/drivers/pci/pcie-sh7786.c b/arch/sh/drivers/pci/pcie-sh7786.c index 78f378731858..d053ffca8196 100644 --- a/arch/sh/drivers/pci/pcie-sh7786.c +++ b/arch/sh/drivers/pci/pcie-sh7786.c @@ -148,16 +148,11 @@ static int pci_wait_for_irq(struct pci_channel *chan, unsigned int mask) static void phy_write_reg(struct pci_channel *chan, unsigned int addr, unsigned int lane, unsigned int data) { - unsigned long phyaddr, ctrl; + unsigned long phyaddr; phyaddr = (1 << BITS_CMD) + ((lane & 0xf) << BITS_LANE) + ((addr & 0xff) << BITS_ADR); - /* Enable clock */ - ctrl = pci_read_reg(chan, SH4A_PCIEPHYCTLR); - ctrl |= (1 << BITS_CKE); - pci_write_reg(chan, ctrl, SH4A_PCIEPHYCTLR); - /* Set write data */ pci_write_reg(chan, data, SH4A_PCIEPHYDOUTR); pci_write_reg(chan, phyaddr, SH4A_PCIEPHYADRR); @@ -165,20 +160,22 @@ static void phy_write_reg(struct pci_channel *chan, unsigned int addr, phy_wait_for_ack(chan); /* Clear command */ + pci_write_reg(chan, 0, SH4A_PCIEPHYDOUTR); pci_write_reg(chan, 0, SH4A_PCIEPHYADRR); phy_wait_for_ack(chan); - - /* Disable clock */ - ctrl = pci_read_reg(chan, SH4A_PCIEPHYCTLR); - ctrl &= ~(1 << BITS_CKE); - pci_write_reg(chan, ctrl, SH4A_PCIEPHYCTLR); } static int phy_init(struct pci_channel *chan) { + unsigned long ctrl; unsigned int timeout = 100; + /* Enable clock */ + ctrl = pci_read_reg(chan, SH4A_PCIEPHYCTLR); + ctrl |= (1 << BITS_CKE); + pci_write_reg(chan, ctrl, SH4A_PCIEPHYCTLR); + /* Initialize the phy */ phy_write_reg(chan, 0x60, 0xf, 0x004b008b); phy_write_reg(chan, 0x61, 0xf, 0x00007b41); @@ -187,9 +184,15 @@ static int phy_init(struct pci_channel *chan) phy_write_reg(chan, 0x66, 0xf, 0x00000010); phy_write_reg(chan, 0x74, 0xf, 0x0007001c); phy_write_reg(chan, 0x79, 0xf, 0x01fc000d); + phy_write_reg(chan, 0xb0, 0xf, 0x00000610); /* Deassert Standby */ - phy_write_reg(chan, 0x67, 0xf, 0x00000400); + phy_write_reg(chan, 0x67, 0x1, 0x00000400); + + /* Disable clock */ + ctrl = pci_read_reg(chan, SH4A_PCIEPHYCTLR); + ctrl &= ~(1 << BITS_CKE); + pci_write_reg(chan, ctrl, SH4A_PCIEPHYCTLR); while (timeout--) { if (pci_read_reg(chan, SH4A_PCIEPHYSR)) @@ -287,6 +290,9 @@ static int pcie_init(struct sh7786_pcie_port *port) __raw_writel(memphys, chan->reg_base + SH4A_PCIELAR0); __raw_writel((memsize - SZ_256) | 1, chan->reg_base + SH4A_PCIELAMR0); + __raw_writel(memphys, chan->reg_base + SH4A_PCIEPCICONF4); + __raw_writel(0, chan->reg_base + SH4A_PCIEPCICONF5); + /* Finish initialization */ data = pci_read_reg(chan, SH4A_PCIETCTLR); data |= 0x1; |