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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-03 14:31:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-03 14:31:24 -0700
commitbe82ae0238b0453afcf4a76f0512b7dde34ba500 (patch)
treeaaa3f5f11fd51fd73365ee1a2164aad9a03de060 /arch/arm/mach-kirkwood/common.c
parent4b4fd27c0b5ec638a1f06ced9226fd95229dbbf0 (diff)
parent7b70c4275f28702b76b273c8534c38f8313812e9 (diff)
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Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (291 commits) ARM: AMBA: Add pclk support to AMBA bus infrastructure ARM: 6278/2: fix regression in RealView after the introduction of pclk ARM: 6277/1: mach-shmobile: Allow users to select HZ, default to 128 ARM: 6276/1: mach-shmobile: remove duplicate NR_IRQS_LEGACY ARM: 6246/1: mmci: support larger MMCIDATALENGTH register ARM: 6245/1: mmci: enable hardware flow control on Ux500 variants ARM: 6244/1: mmci: add variant data and default MCICLOCK support ARM: 6243/1: mmci: pass power_mode to the translate_vdd callback ARM: 6274/1: add global control registers definition header file for nuc900 mx2_camera: fix type of dma buffer virtual address pointer mx2_camera: Add soc_camera support for i.MX25/i.MX27 arm/imx/gpio: add spinlock protection ARM: Add support for the LPC32XX arch ARM: LPC32XX: Arch config menu supoport and makefiles ARM: LPC32XX: Phytec 3250 platform support ARM: LPC32XX: Misc support functions ARM: LPC32XX: Serial support code ARM: LPC32XX: System suspend support ARM: LPC32XX: GPIO, timer, and IRQ drivers ARM: LPC32XX: Clock driver ...
Diffstat (limited to 'arch/arm/mach-kirkwood/common.c')
-rw-r--r--arch/arm/mach-kirkwood/common.c38
1 files changed, 34 insertions, 4 deletions
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 6072eaa5e66a..9dd67c7b4459 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -44,6 +44,11 @@ static struct map_desc kirkwood_io_desc[] __initdata = {
.length = KIRKWOOD_PCIE_IO_SIZE,
.type = MT_DEVICE,
}, {
+ .virtual = KIRKWOOD_PCIE1_IO_VIRT_BASE,
+ .pfn = __phys_to_pfn(KIRKWOOD_PCIE1_IO_PHYS_BASE),
+ .length = KIRKWOOD_PCIE1_IO_SIZE,
+ .type = MT_DEVICE,
+ }, {
.virtual = KIRKWOOD_REGS_VIRT_BASE,
.pfn = __phys_to_pfn(KIRKWOOD_REGS_PHYS_BASE),
.length = KIRKWOOD_REGS_SIZE,
@@ -402,7 +407,7 @@ void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data)
u32 dev, rev;
kirkwood_pcie_id(&dev, &rev);
- if (rev == 0) /* catch all Kirkwood Z0's */
+ if (rev == 0 && dev != MV88F6282_DEV_ID) /* catch all Kirkwood Z0's */
mvsdio_data->clock = 100000000;
else
mvsdio_data->clock = 200000000;
@@ -847,8 +852,10 @@ int __init kirkwood_find_tclk(void)
u32 dev, rev;
kirkwood_pcie_id(&dev, &rev);
- if (dev == MV88F6281_DEV_ID && (rev == MV88F6281_REV_A0 ||
- rev == MV88F6281_REV_A1))
+
+ if ((dev == MV88F6281_DEV_ID && (rev == MV88F6281_REV_A0 ||
+ rev == MV88F6281_REV_A1)) ||
+ (dev == MV88F6282_DEV_ID))
return 200000000;
return 166666667;
@@ -891,13 +898,22 @@ static char * __init kirkwood_id(void)
return "MV88F6192-Z0";
else if (rev == MV88F6192_REV_A0)
return "MV88F6192-A0";
+ else if (rev == MV88F6192_REV_A1)
+ return "MV88F6192-A1";
else
return "MV88F6192-Rev-Unsupported";
} else if (dev == MV88F6180_DEV_ID) {
if (rev == MV88F6180_REV_A0)
return "MV88F6180-Rev-A0";
+ else if (rev == MV88F6180_REV_A1)
+ return "MV88F6180-Rev-A1";
else
return "MV88F6180-Rev-Unsupported";
+ } else if (dev == MV88F6282_DEV_ID) {
+ if (rev == MV88F6282_REV_A0)
+ return "MV88F6282-Rev-A0";
+ else
+ return "MV88F6282-Rev-Unsupported";
} else {
return "Device-Unknown";
}
@@ -949,12 +965,14 @@ void __init kirkwood_init(void)
static int __init kirkwood_clock_gate(void)
{
unsigned int curr = readl(CLOCK_GATING_CTRL);
+ u32 dev, rev;
+ kirkwood_pcie_id(&dev, &rev);
printk(KERN_DEBUG "Gating clock of unused units\n");
printk(KERN_DEBUG "before: 0x%08x\n", curr);
/* Make sure those units are accessible */
- writel(curr | CGC_SATA0 | CGC_SATA1 | CGC_PEX0, CLOCK_GATING_CTRL);
+ writel(curr | CGC_SATA0 | CGC_SATA1 | CGC_PEX0 | CGC_PEX1, CLOCK_GATING_CTRL);
/* For SATA: first shutdown the phy */
if (!(kirkwood_clk_ctrl & CGC_SATA0)) {
@@ -979,6 +997,18 @@ static int __init kirkwood_clock_gate(void)
writel(readl(PCIE_LINK_CTRL) & ~0x10, PCIE_LINK_CTRL);
}
+ /* For PCIe 1: first shutdown the phy */
+ if (dev == MV88F6282_DEV_ID) {
+ if (!(kirkwood_clk_ctrl & CGC_PEX1)) {
+ writel(readl(PCIE1_LINK_CTRL) | 0x10, PCIE1_LINK_CTRL);
+ while (1)
+ if (readl(PCIE1_STATUS) & 0x1)
+ break;
+ writel(readl(PCIE1_LINK_CTRL) & ~0x10, PCIE1_LINK_CTRL);
+ }
+ } else /* keep this bit set for devices that don't have PCIe1 */
+ kirkwood_clk_ctrl |= CGC_PEX1;
+
/* Now gate clock the required units */
writel(kirkwood_clk_ctrl, CLOCK_GATING_CTRL);
printk(KERN_DEBUG " after: 0x%08x\n", readl(CLOCK_GATING_CTRL));