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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-10-09 21:31:56 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-10-09 21:31:56 +0100
commit6a4690c22f5da1eb1c898b61b6a80da52fbd976f (patch)
treea03891a32abe0da191fb765fe669a597e07423c6 /arch/arm/mach-ixp2000
parent90bb28b0644f7324f8bd1feb27b35146e6785ba2 (diff)
parent8ec53663d2698076468b3e1edc4e1b418bd54de3 (diff)
downloadop-kernel-dev-6a4690c22f5da1eb1c898b61b6a80da52fbd976f.zip
op-kernel-dev-6a4690c22f5da1eb1c898b61b6a80da52fbd976f.tar.gz
Merge branch 'ptebits' into devel
Conflicts: arch/arm/Kconfig
Diffstat (limited to 'arch/arm/mach-ixp2000')
-rw-r--r--arch/arm/mach-ixp2000/core.c27
-rw-r--r--arch/arm/mach-ixp2000/enp2611.c6
-rw-r--r--arch/arm/mach-ixp2000/include/mach/ixp2000-regs.h8
3 files changed, 14 insertions, 27 deletions
diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c
index a6a4f93..628063c 100644
--- a/arch/arm/mach-ixp2000/core.c
+++ b/arch/arm/mach-ixp2000/core.c
@@ -84,64 +84,57 @@ static struct map_desc ixp2000_io_desc[] __initdata = {
.virtual = IXP2000_CAP_VIRT_BASE,
.pfn = __phys_to_pfn(IXP2000_CAP_PHYS_BASE),
.length = IXP2000_CAP_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = IXP2000_INTCTL_VIRT_BASE,
.pfn = __phys_to_pfn(IXP2000_INTCTL_PHYS_BASE),
.length = IXP2000_INTCTL_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = IXP2000_PCI_CREG_VIRT_BASE,
.pfn = __phys_to_pfn(IXP2000_PCI_CREG_PHYS_BASE),
.length = IXP2000_PCI_CREG_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = IXP2000_PCI_CSR_VIRT_BASE,
.pfn = __phys_to_pfn(IXP2000_PCI_CSR_PHYS_BASE),
.length = IXP2000_PCI_CSR_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = IXP2000_MSF_VIRT_BASE,
.pfn = __phys_to_pfn(IXP2000_MSF_PHYS_BASE),
.length = IXP2000_MSF_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = IXP2000_SCRATCH_RING_VIRT_BASE,
.pfn = __phys_to_pfn(IXP2000_SCRATCH_RING_PHYS_BASE),
.length = IXP2000_SCRATCH_RING_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = IXP2000_SRAM0_VIRT_BASE,
.pfn = __phys_to_pfn(IXP2000_SRAM0_PHYS_BASE),
.length = IXP2000_SRAM0_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = IXP2000_PCI_IO_VIRT_BASE,
.pfn = __phys_to_pfn(IXP2000_PCI_IO_PHYS_BASE),
.length = IXP2000_PCI_IO_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = IXP2000_PCI_CFG0_VIRT_BASE,
.pfn = __phys_to_pfn(IXP2000_PCI_CFG0_PHYS_BASE),
.length = IXP2000_PCI_CFG0_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = IXP2000_PCI_CFG1_VIRT_BASE,
.pfn = __phys_to_pfn(IXP2000_PCI_CFG1_PHYS_BASE),
.length = IXP2000_PCI_CFG1_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}
};
void __init ixp2000_map_io(void)
{
- /*
- * On IXP2400 CPUs we need to use MT_DEVICE_IXP2000 so that
- * XCB=101 (to avoid triggering erratum #66), and given that
- * this mode speeds up I/O accesses and we have write buffer
- * flushes in the right places anyway, it doesn't hurt to use
- * XCB=101 for all IXP2000s.
- */
iotable_init(ixp2000_io_desc, ARRAY_SIZE(ixp2000_io_desc));
/* Set slowport to 8-bit mode. */
diff --git a/arch/arm/mach-ixp2000/enp2611.c b/arch/arm/mach-ixp2000/enp2611.c
index 279e431..c84dfac 100644
--- a/arch/arm/mach-ixp2000/enp2611.c
+++ b/arch/arm/mach-ixp2000/enp2611.c
@@ -70,17 +70,17 @@ static struct map_desc enp2611_io_desc[] __initdata = {
.virtual = ENP2611_CALEB_VIRT_BASE,
.pfn = __phys_to_pfn(ENP2611_CALEB_PHYS_BASE),
.length = ENP2611_CALEB_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = ENP2611_PM3386_0_VIRT_BASE,
.pfn = __phys_to_pfn(ENP2611_PM3386_0_PHYS_BASE),
.length = ENP2611_PM3386_0_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}, {
.virtual = ENP2611_PM3386_1_VIRT_BASE,
.pfn = __phys_to_pfn(ENP2611_PM3386_1_PHYS_BASE),
.length = ENP2611_PM3386_1_SIZE,
- .type = MT_DEVICE_IXP2000,
+ .type = MT_DEVICE,
}
};
diff --git a/arch/arm/mach-ixp2000/include/mach/ixp2000-regs.h b/arch/arm/mach-ixp2000/include/mach/ixp2000-regs.h
index 19d8037..822f63f 100644
--- a/arch/arm/mach-ixp2000/include/mach/ixp2000-regs.h
+++ b/arch/arm/mach-ixp2000/include/mach/ixp2000-regs.h
@@ -41,13 +41,7 @@
* Most of the registers are clumped in 4K regions spread throughout
* the 0xc0000000 -> 0xc0100000 address range, but we just map in
* the whole range using a single 1 MB section instead of small
- * 4K pages. This has two advantages for us:
- *
- * 1) We use only one TLB entry for large number of on-chip I/O devices.
- *
- * 2) We can easily set the Section attributes to XCB=101 on the IXP2400
- * as required per erratum #66. We accomplish this by using a
- * new MT_IXP2000_DEVICE memory type with the bits set as required.
+ * 4K pages.
*
* CAP stands for CSR Access Proxy.
*
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