aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/include/asm/io.h5
-rw-r--r--arch/arm/include/asm/mach/map.h15
-rw-r--r--arch/arm/include/asm/pgtable.h1
-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
-rw-r--r--arch/arm/mm/mmu.c7
-rw-r--r--arch/arm/mm/proc-macros.S2
-rw-r--r--arch/arm/mm/proc-xsc3.S2
-rw-r--r--arch/arm/mm/proc-xscale.S2
10 files changed, 26 insertions, 49 deletions
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 71934856fc2..a8094451be5 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -60,10 +60,9 @@ extern void __raw_readsl(const void __iomem *addr, void *data, int longlen);
#define MT_DEVICE 0
#define MT_DEVICE_NONSHARED 1
#define MT_DEVICE_CACHED 2
-#define MT_DEVICE_IXP2000 3
-#define MT_DEVICE_WC 4
+#define MT_DEVICE_WC 3
/*
- * types 5 onwards can be found in asm/mach/map.h and are undefined
+ * types 4 onwards can be found in asm/mach/map.h and are undefined
* for ioremap
*/
diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
index 9eb936e49cc..72586cd4372 100644
--- a/arch/arm/include/asm/mach/map.h
+++ b/arch/arm/include/asm/mach/map.h
@@ -18,16 +18,15 @@ struct map_desc {
unsigned int type;
};
-/* types 0-4 are defined in asm/io.h */
-#define MT_CACHECLEAN 5
-#define MT_MINICLEAN 6
-#define MT_LOW_VECTORS 7
-#define MT_HIGH_VECTORS 8
-#define MT_MEMORY 9
-#define MT_ROM 10
+/* types 0-3 are defined in asm/io.h */
+#define MT_CACHECLEAN 4
+#define MT_MINICLEAN 5
+#define MT_LOW_VECTORS 6
+#define MT_HIGH_VECTORS 7
+#define MT_MEMORY 8
+#define MT_ROM 9
#define MT_NONSHARED_DEVICE MT_DEVICE_NONSHARED
-#define MT_IXP2000_DEVICE MT_DEVICE_IXP2000
#ifdef CONFIG_MMU
extern void iotable_init(struct map_desc *, int);
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index dfeff814a94..e5054b026c2 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -184,7 +184,6 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
#define L_PTE_MT_WRITEALLOC (0x07 << 2) /* 0111 */
#define L_PTE_MT_DEV_SHARED (0x04 << 2) /* 0100 */
#define L_PTE_MT_DEV_NONSHARED (0x0c << 2) /* 1100 */
-#define L_PTE_MT_DEV_IXP2000 (0x0d << 2) /* 1101 */
#define L_PTE_MT_DEV_WC (0x09 << 2) /* 1001 */
#define L_PTE_MT_DEV_CACHED (0x0b << 2) /* 1011 */
#define L_PTE_MT_MASK (0x0f << 2)
diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c
index a6a4f93085f..628063ca31e 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 c62ed655c1a..8bb184dbc18 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 19d80379a3e..822f63f2f4a 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.
*
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 685dc1bf008..06ad914928c 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -204,13 +204,6 @@ static struct mem_type mem_types[] = {
.prot_sect = PROT_SECT_DEVICE | PMD_SECT_WB,
.domain = DOMAIN_IO,
},
- [MT_DEVICE_IXP2000] = { /* IXP2400 requires XCB=101 for on-chip I/O */
- .prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_IXP2000,
- .prot_l1 = PMD_TYPE_TABLE,
- .prot_sect = PROT_SECT_DEVICE | PMD_SECT_BUFFERABLE |
- PMD_SECT_TEX(1),
- .domain = DOMAIN_IO,
- },
[MT_DEVICE_WC] = { /* ioremap_wc */
.prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_WC,
.prot_l1 = PMD_TYPE_TABLE,
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
index 64e59302085..54b1f721dec 100644
--- a/arch/arm/mm/proc-macros.S
+++ b/arch/arm/mm/proc-macros.S
@@ -119,7 +119,7 @@
.long 0x00 @ unused
.long PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_DEV_CACHED
.long PTE_EXT_TEX(2) @ L_PTE_MT_DEV_NONSHARED
- .long 0x00 @ L_PTE_MT_DEV_IXP2000
+ .long 0x00 @ unused
.long 0x00 @ unused
.long 0x00 @ unused
.endm
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index 22ecef533a8..ecdd944bc2b 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -360,7 +360,7 @@ cpu_xsc3_mt_table:
.long 0x00 @ unused
.long PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_DEV_CACHED
.long PTE_EXT_TEX(2) @ L_PTE_MT_DEV_NONSHARED
- .long 0x00 @ L_PTE_MT_DEV_IXP2000 (not present)
+ .long 0x00 @ unused
.long 0x00 @ unused
.long 0x00 @ unused
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index 534b4be86ae..01adbd9462f 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -443,7 +443,7 @@ cpu_xscale_mt_table:
.long 0x00 @ unused
.long PTE_CACHEABLE | PTE_BUFFERABLE @ L_PTE_MT_DEV_CACHED
.long 0x00 @ L_PTE_MT_DEV_NONSHARED
- .long PTE_EXT_TEX(1) | PTE_BUFFERABLE @ L_PTE_MT_DEV_IXP2000
+ .long 0x00 @ unused
.long 0x00 @ unused
.long 0x00 @ unused
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 18:54:32 +0000