diff options
Diffstat (limited to 'target/linux/coldfire/patches/060-m547x_8x_move_memmap.patch')
| -rw-r--r-- | target/linux/coldfire/patches/060-m547x_8x_move_memmap.patch | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/target/linux/coldfire/patches/060-m547x_8x_move_memmap.patch b/target/linux/coldfire/patches/060-m547x_8x_move_memmap.patch deleted file mode 100644 index 01d7a6ea99..0000000000 --- a/target/linux/coldfire/patches/060-m547x_8x_move_memmap.patch +++ /dev/null @@ -1,152 +0,0 @@ -From 961a1f1ccbb2121a4e650cd64ca1f5c15b232e18 Mon Sep 17 00:00:00 2001 -From: Kurt Mahan <kmahan@freescale.com> -Date: Thu, 29 May 2008 22:03:08 -0600 -Subject: [PATCH] Update M547x/M548x memory map. - -- Move internal memory - 0xF0000000 MBAR - 0xF1000000 MMUBAR - 0xF3000000 RAMBAR0 - 0xF3001000 RAMBAR1 - -- Move KMAP area - 0xD0000000 -> 0xDFFFFFFF - -- Update pagefault code for KMAP area - -LTIBName: m547x-8x-move-memmap -Signed-off-by: Kurt Mahan <kmahan@freescale.com> ---- - arch/m68k/coldfire/head.S | 2 +- - arch/m68k/mm/cf-mmu.c | 20 ++++++++++---------- - arch/m68k/mm/kmap.c | 18 +++++++++++++++--- - include/asm-m68k/coldfire.h | 8 ++++---- - include/asm-m68k/pgtable.h | 4 ++-- - 5 files changed, 32 insertions(+), 20 deletions(-) - ---- a/arch/m68k/coldfire/head.S -+++ b/arch/m68k/coldfire/head.S -@@ -87,7 +87,7 @@ - #else - #if defined(CONFIG_M54455) - #elif defined(CONFIG_M547X_8X) --#define ACR0_DEFAULT #0xE000C040 /* ACR0 default value */ -+#define ACR0_DEFAULT #0xF00FC040 /* ACR0 default value */ - #define ACR1_DEFAULT #0x000FA008 /* ACR1 default value */ - #define ACR2_DEFAULT #0x00000000 /* ACR2 default value */ - #define ACR3_DEFAULT #0x000FA008 /* ACR3 default value */ ---- a/arch/m68k/mm/cf-mmu.c -+++ b/arch/m68k/mm/cf-mmu.c -@@ -35,11 +35,9 @@ - #include <asm/coldfire.h> - #include <asm/tlbflush.h> - --#if PAGE_OFFSET == CONFIG_SDRAM_BASE --#define KERNRAM(x) ((x >= PAGE_OFFSET) && (x < (PAGE_OFFSET + CONFIG_SDRAM_SIZE))) --#else --#define KERNRAM(x) (x >= PAGE_OFFSET) --#endif -+#define KMAPAREA(x) ((x >= KMAP_START) && ( x < KMAP_END)) -+ -+#undef DEBUG - - mm_context_t next_mmu_context; - unsigned long context_map[LAST_CONTEXT / BITS_PER_LONG + 1]; -@@ -162,7 +160,7 @@ int cf_tlb_miss(struct pt_regs *regs, in - mmuar = ( dtlb ) ? regs->mmuar - : regs->pc + (extension_word * sizeof(long)); - -- mm = (!user_mode(regs) && KERNRAM(mmuar)) ? &init_mm : current->mm; -+ mm = (!user_mode(regs) && KMAPAREA(mmuar)) ? &init_mm : current->mm; - - if (!mm) { - local_irq_restore(flags); -@@ -181,7 +179,7 @@ int cf_tlb_miss(struct pt_regs *regs, in - return (-1); - } - -- pte = (KERNRAM(mmuar)) ? pte_offset_kernel(pmd, mmuar) -+ pte = (KMAPAREA(mmuar)) ? pte_offset_kernel(pmd, mmuar) - : pte_offset_map(pmd, mmuar); - if (pte_none(*pte) || !pte_present(*pte)) { - local_irq_restore(flags); -@@ -198,7 +196,7 @@ int cf_tlb_miss(struct pt_regs *regs, in - - set_pte(pte, pte_mkyoung(*pte)); - asid = mm->context & 0xff; -- if (!pte_dirty(*pte) && !KERNRAM(mmuar)) -+ if (!pte_dirty(*pte) && !KMAPAREA(mmuar)) - set_pte(pte, pte_wrprotect(*pte)); - - *MMUTR = (mmuar & PAGE_MASK) | (asid << CF_ASID_MMU_SHIFT) -@@ -216,8 +214,10 @@ int cf_tlb_miss(struct pt_regs *regs, in - - asm("nop"); - -- /*printk("cf_tlb_miss: va=%lx, pa=%lx\n", (mmuar & PAGE_MASK), -- (pte_val(*pte) & PAGE_MASK));*/ -+#ifdef DEBUG -+ printk("cf_tlb_miss: va=%lx, pa=%lx\n", (mmuar & PAGE_MASK), -+ (pte_val(*pte) & PAGE_MASK)); -+#endif - local_irq_restore(flags); - return (0); - } ---- a/arch/m68k/mm/kmap.c -+++ b/arch/m68k/mm/kmap.c -@@ -135,10 +135,22 @@ void __iomem *__ioremap(unsigned long ph - - #ifdef CONFIG_M54455 - if (physaddr >= 0xf0000000) { -- /* short circuit mappings for xf0000000 */ --#ifdef DEBUG -- printk(KERN_INFO "ioremap: short circuiting 0x%lx mapping\n", physaddr); -+ /* -+ * On the M5445x processors an ACR is setup to map -+ * the 0xF0000000 range into kernel memory as -+ * non-cacheable. -+ */ -+ return (void __iomem *)physaddr; -+ } - #endif -+ -+#ifdef CONFIG_M547X_8X -+ if (physaddr >= 0xf0000000) { -+ /* -+ * On the M547x/M548x processors an ACR is setup to map -+ * the 0xF0000000 range into kernel memory as -+ * non-cacheable. -+ */ - return (void __iomem *)physaddr; - } - #endif ---- a/include/asm-m68k/coldfire.h -+++ b/include/asm-m68k/coldfire.h -@@ -6,10 +6,10 @@ - #define MCF_RAMBAR1 0x40000000 - #define MCF_SRAM 0x80000000 - #elif defined(CONFIG_M547X_8X) --#define MCF_MBAR 0xE0000000 --#define MCF_MMUBAR 0xE1000000 --#define MCF_RAMBAR0 0xE3000000 --#define MCF_RAMBAR1 0xE3001000 -+#define MCF_MBAR 0xF0000000 -+#define MCF_MMUBAR 0xF1000000 -+#define MCF_RAMBAR0 0xF3000000 -+#define MCF_RAMBAR1 0xF3001000 - #endif - - #define MCF_CLK CONFIG_MCFCLK ---- a/include/asm-m68k/pgtable.h -+++ b/include/asm-m68k/pgtable.h -@@ -73,8 +73,8 @@ - #define KMAP_START 0x0DC00000 - #define KMAP_END 0x0E000000 - #elif defined(CONFIG_COLDFIRE) --#define KMAP_START 0xe0000000 --#define KMAP_END 0xf0000000 -+#define KMAP_START 0xd0000000 -+#define KMAP_END 0xe0000000 - #else - #define KMAP_START 0xd0000000 - #define KMAP_END 0xf0000000 |