diff options
| -rw-r--r-- | target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch (renamed from target/linux/linux-2.4/patches/brcm/004-bcm94710_mmu.patch) | 238 | ||||
| -rw-r--r-- | target/linux/linux-2.4/patches/brcm/003-bcm47xx_workarounds.patch | 122 |
2 files changed, 238 insertions, 122 deletions
diff --git a/target/linux/linux-2.4/patches/brcm/004-bcm94710_mmu.patch b/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch index 5151092379..737571b942 100644 --- a/target/linux/linux-2.4/patches/brcm/004-bcm94710_mmu.patch +++ b/target/linux/linux-2.4/patches/brcm/003-bcm47xx_cache_fixes.patch @@ -1,3 +1,125 @@ +diff -urN linux.old/arch/mips/mm/tlbex-mips32.S linux.dev/arch/mips/mm/tlbex-mips32.S +--- linux.old/arch/mips/mm/tlbex-mips32.S 2005-05-28 17:42:03.000000000 +0200 ++++ linux.dev/arch/mips/mm/tlbex-mips32.S 2005-05-28 21:48:55.000000000 +0200 +@@ -90,6 +90,9 @@ + .set noat + LEAF(except_vec0_r4000) + .set mips3 ++#ifdef CONFIG_BCM4704 ++ nop ++#endif + #ifdef CONFIG_SMP + mfc0 k1, CP0_CONTEXT + la k0, pgd_current +diff -urN linux.old/arch/mips/mm/pg-r4k.c linux.dev/arch/mips/mm/pg-r4k.c +--- linux.old/arch/mips/mm/pg-r4k.c 2005-01-19 15:09:29.000000000 +0100 ++++ linux.dev/arch/mips/mm/pg-r4k.c 2005-05-28 21:57:52.000000000 +0200 +@@ -180,6 +180,7 @@ + + static inline void build_cdex_s(void) + { ++#if !defined(CONFIG_BCM4704) && !defined(CONFIG_BCM4710) + union mips_instruction mi; + + if ((store_offset & (cpu_scache_line_size() - 1))) +@@ -192,10 +193,12 @@ + mi.c_format.simmediate = store_offset; + + emit_instruction(mi); ++#endif + } + + static inline void build_cdex_p(void) + { ++#if !defined(CONFIG_BCM4704) && !defined(CONFIG_BCM4710) + union mips_instruction mi; + + if (store_offset & (cpu_dcache_line_size() - 1)) +@@ -218,6 +221,7 @@ + mi.c_format.simmediate = store_offset; + + emit_instruction(mi); ++#endif + } + + static void __build_store_reg(int reg) +diff -urN linux.old/include/asm-mips/stackframe.h linux.dev/include/asm-mips/stackframe.h +--- linux.old/include/asm-mips/stackframe.h 2002-11-29 00:53:15.000000000 +0100 ++++ linux.dev/include/asm-mips/stackframe.h 2005-05-28 21:53:03.000000000 +0200 +@@ -172,6 +172,46 @@ + rfe; \ + .set pop + ++#elif defined(CONFIG_BCM4710) || defined(CONFIG_BCM4704) ++ ++#define RESTORE_SOME \ ++ .set push; \ ++ .set reorder; \ ++ mfc0 t0, CP0_STATUS; \ ++ .set pop; \ ++ ori t0, 0x1f; \ ++ xori t0, 0x1f; \ ++ mtc0 t0, CP0_STATUS; \ ++ li v1, 0xff00; \ ++ and t0, v1; \ ++ lw v0, PT_STATUS(sp); \ ++ nor v1, $0, v1; \ ++ and v0, v1; \ ++ or v0, t0; \ ++ ori v1, v0, ST0_IE; \ ++ xori v1, v1, ST0_IE; \ ++ mtc0 v1, CP0_STATUS; \ ++ mtc0 v0, CP0_STATUS; \ ++ lw v1, PT_EPC(sp); \ ++ mtc0 v1, CP0_EPC; \ ++ lw $31, PT_R31(sp); \ ++ lw $28, PT_R28(sp); \ ++ lw $25, PT_R25(sp); \ ++ lw $7, PT_R7(sp); \ ++ lw $6, PT_R6(sp); \ ++ lw $5, PT_R5(sp); \ ++ lw $4, PT_R4(sp); \ ++ lw $3, PT_R3(sp); \ ++ lw $2, PT_R2(sp) ++ ++#define RESTORE_SP_AND_RET \ ++ lw sp, PT_R29(sp); \ ++ nop; \ ++ nop; \ ++ .set mips3; \ ++ eret; \ ++ .set mips0 ++ + #else + + #define RESTORE_SOME \ +diff -urN linux.old/arch/mips/mm/tlbex-r4k.S linux.dev/arch/mips/mm/tlbex-r4k.S +--- linux.old/arch/mips/mm/tlbex-r4k.S 2005-05-28 17:42:03.000000000 +0200 ++++ linux.dev/arch/mips/mm/tlbex-r4k.S 2005-05-29 15:04:43.000000000 +0200 +@@ -168,6 +168,9 @@ + .set noat + LEAF(except_vec0_r4000) + .set mips3 ++#ifdef CONFIG_BCM4704 ++ nop ++#endif + GET_PGD(k0, k1) # get pgd pointer + mfc0 k0, CP0_BADVADDR # Get faulting address + srl k0, k0, _PGDIR_SHIFT # get pgd only bits +diff -urN linux.old/arch/mips/kernel/entry.S linux.dev/arch/mips/kernel/entry.S +--- linux.old/arch/mips/kernel/entry.S 2003-08-25 13:44:40.000000000 +0200 ++++ linux.dev/arch/mips/kernel/entry.S 2005-06-01 20:10:36.000000000 +0200 +@@ -100,6 +100,10 @@ + * and R4400 SC and MC versions. + */ + NESTED(except_vec3_generic, 0, sp) ++#ifdef CONFIG_BCM4710 ++ nop ++ nop ++#endif + #if R5432_CP0_INTERRUPT_WAR + mfc0 k0, CP0_INDEX + #endif diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c --- linux.old/arch/mips/mm/c-r4k.c 2005-06-01 18:42:44.000000000 +0200 +++ linux.dev/arch/mips/mm/c-r4k.c 2005-06-01 18:49:07.000000000 +0200 @@ -280,3 +402,119 @@ diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c while (1) { flush_dcache_line(a); /* Hit_Writeback_Inv_D */ if (a == end) +diff -urN linux.old/arch/mips/mm/c-r4k.c linux.dev/arch/mips/mm/c-r4k.c +--- linux.old/arch/mips/mm/c-r4k.c 2005-06-11 19:39:17.000000000 +0200 ++++ linux.dev/arch/mips/mm/c-r4k.c 2005-06-11 19:54:48.000000000 +0200 +@@ -1083,6 +1083,19 @@ + static inline void coherency_setup(void) + { + change_c0_config(CONF_CM_CMASK, CONF_CM_DEFAULT); ++ ++#if defined(CONFIG_BCM4310) || defined(CONFIG_BCM4704) || defined(CONFIG_BCM5365) ++ if (BCM330X(current_cpu_data.processor_id)) { ++ uint32 cm; ++ ++ cm = read_c0_diag(); ++ /* Enable icache */ ++ cm |= (1 << 31); ++ /* Enable dcache */ ++ cm |= (1 << 30); ++ write_c0_diag(cm); ++ } ++#endif + + /* + * c0_status.cu=0 specifies that updates by the sc instruction use +@@ -1104,6 +1117,42 @@ + + } + ++#ifdef CONFIG_BCM4704 ++static void __init mips32_icache_fill(unsigned long addr, uint nbytes) ++{ ++ unsigned long ic_lsize = current_cpu_data.icache.linesz; ++ int i; ++ for (i = 0; i < nbytes; i += ic_lsize) ++ fill_icache_line((addr + i)); ++} ++ ++/* ++ * This must be run from the cache on 4704A0 ++ * so there are no mips core BIU ops in progress ++ * when the PFC is enabled. ++ */ ++#define PFC_CR0 0xff400000 /* control reg 0 */ ++#define PFC_CR1 0xff400004 /* control reg 1 */ ++static void __init enable_pfc(u32 mode) ++{ ++ /* write range */ ++ *(volatile u32 *)PFC_CR1 = 0xffff0000; ++ ++ /* enable */ ++ *(volatile u32 *)PFC_CR0 = mode; ++} ++ ++void check_enable_mips_pfc(int val) ++{ ++ /* enable prefetch cache */ ++ if (BCM330X(current_cpu_data.processor_id) ++ && (read_c0_diag() & (1 << 29))) { ++ mips32_icache_fill((unsigned long) &enable_pfc, 64); ++ enable_pfc(val); ++ } ++} ++#endif ++ + void __init ld_mmu_r4xx0(void) + { + extern void build_clear_page(void); +@@ -1159,47 +1208,9 @@ + + build_clear_page(); + build_copy_page(); +-} +- +-#ifdef CONFIG_BCM4704 +-static void __init mips32_icache_fill(unsigned long addr, uint nbytes) +-{ +- unsigned long ic_lsize = current_cpu_data.icache.linesz; +- int i; +- for (i = 0; i < nbytes; i += ic_lsize) +- fill_icache_line((addr + i)); +-} +- +-/* +- * This must be run from the cache on 4704A0 +- * so there are no mips core BIU ops in progress +- * when the PFC is enabled. +- */ +-#define PFC_CR0 0xff400000 /* control reg 0 */ +-#define PFC_CR1 0xff400004 /* control reg 1 */ +-static void __init enable_pfc(u32 mode) +-{ +- /* write range */ +- *(volatile u32 *)PFC_CR1 = 0xffff0000; +- +- /* enable */ +- *(volatile u32 *)PFC_CR0 = mode; +-} +-#endif +- +- +-void check_enable_mips_pfc(int val) +-{ +- ++ + #ifdef CONFIG_BCM4704 +- struct cpuinfo_mips *c = ¤t_cpu_data; +- +- /* enable prefetch cache */ +- if (((c->processor_id & (PRID_COMP_MASK | PRID_IMP_MASK)) == PRID_IMP_BCM3302) +- && (read_c0_diag() & (1 << 29))) { +- mips32_icache_fill((unsigned long) &enable_pfc, 64); +- enable_pfc(val); +- } ++ check_enable_mips_pfc(0x15); + #endif + } + diff --git a/target/linux/linux-2.4/patches/brcm/003-bcm47xx_workarounds.patch b/target/linux/linux-2.4/patches/brcm/003-bcm47xx_workarounds.patch deleted file mode 100644 index 73afd60c1e..0000000000 --- a/target/linux/linux-2.4/patches/brcm/003-bcm47xx_workarounds.patch +++ /dev/null @@ -1,122 +0,0 @@ -diff -urN linux.old/arch/mips/mm/tlbex-mips32.S linux.dev/arch/mips/mm/tlbex-mips32.S ---- linux.old/arch/mips/mm/tlbex-mips32.S 2005-05-28 17:42:03.000000000 +0200 -+++ linux.dev/arch/mips/mm/tlbex-mips32.S 2005-05-28 21:48:55.000000000 +0200 -@@ -90,6 +90,9 @@ - .set noat - LEAF(except_vec0_r4000) - .set mips3 -+#ifdef CONFIG_BCM4704 -+ nop -+#endif - #ifdef CONFIG_SMP - mfc0 k1, CP0_CONTEXT - la k0, pgd_current -diff -urN linux.old/arch/mips/mm/pg-r4k.c linux.dev/arch/mips/mm/pg-r4k.c ---- linux.old/arch/mips/mm/pg-r4k.c 2005-01-19 15:09:29.000000000 +0100 -+++ linux.dev/arch/mips/mm/pg-r4k.c 2005-05-28 21:57:52.000000000 +0200 -@@ -180,6 +180,7 @@ - - static inline void build_cdex_s(void) - { -+#if !defined(CONFIG_BCM4704) && !defined(CONFIG_BCM4710) - union mips_instruction mi; - - if ((store_offset & (cpu_scache_line_size() - 1))) -@@ -192,10 +193,12 @@ - mi.c_format.simmediate = store_offset; - - emit_instruction(mi); -+#endif - } - - static inline void build_cdex_p(void) - { -+#if !defined(CONFIG_BCM4704) && !defined(CONFIG_BCM4710) - union mips_instruction mi; - - if (store_offset & (cpu_dcache_line_size() - 1)) -@@ -218,6 +221,7 @@ - mi.c_format.simmediate = store_offset; - - emit_instruction(mi); -+#endif - } - - static void __build_store_reg(int reg) -diff -urN linux.old/include/asm-mips/stackframe.h linux.dev/include/asm-mips/stackframe.h ---- linux.old/include/asm-mips/stackframe.h 2002-11-29 00:53:15.000000000 +0100 -+++ linux.dev/include/asm-mips/stackframe.h 2005-05-28 21:53:03.000000000 +0200 -@@ -172,6 +172,46 @@ - rfe; \ - .set pop - -+#elif defined(CONFIG_BCM4710) || defined(CONFIG_BCM4704) -+ -+#define RESTORE_SOME \ -+ .set push; \ -+ .set reorder; \ -+ mfc0 t0, CP0_STATUS; \ -+ .set pop; \ -+ ori t0, 0x1f; \ -+ xori t0, 0x1f; \ -+ mtc0 t0, CP0_STATUS; \ -+ li v1, 0xff00; \ -+ and t0, v1; \ -+ lw v0, PT_STATUS(sp); \ -+ nor v1, $0, v1; \ -+ and v0, v1; \ -+ or v0, t0; \ -+ ori v1, v0, ST0_IE; \ -+ xori v1, v1, ST0_IE; \ -+ mtc0 v1, CP0_STATUS; \ -+ mtc0 v0, CP0_STATUS; \ -+ lw v1, PT_EPC(sp); \ -+ mtc0 v1, CP0_EPC; \ -+ lw $31, PT_R31(sp); \ -+ lw $28, PT_R28(sp); \ -+ lw $25, PT_R25(sp); \ -+ lw $7, PT_R7(sp); \ -+ lw $6, PT_R6(sp); \ -+ lw $5, PT_R5(sp); \ -+ lw $4, PT_R4(sp); \ -+ lw $3, PT_R3(sp); \ -+ lw $2, PT_R2(sp) -+ -+#define RESTORE_SP_AND_RET \ -+ lw sp, PT_R29(sp); \ -+ nop; \ -+ nop; \ -+ .set mips3; \ -+ eret; \ -+ .set mips0 -+ - #else - - #define RESTORE_SOME \ -diff -urN linux.old/arch/mips/mm/tlbex-r4k.S linux.dev/arch/mips/mm/tlbex-r4k.S ---- linux.old/arch/mips/mm/tlbex-r4k.S 2005-05-28 17:42:03.000000000 +0200 -+++ linux.dev/arch/mips/mm/tlbex-r4k.S 2005-05-29 15:04:43.000000000 +0200 -@@ -168,6 +168,9 @@ - .set noat - LEAF(except_vec0_r4000) - .set mips3 -+#ifdef CONFIG_BCM4704 -+ nop -+#endif - GET_PGD(k0, k1) # get pgd pointer - mfc0 k0, CP0_BADVADDR # Get faulting address - srl k0, k0, _PGDIR_SHIFT # get pgd only bits -diff -urN linux.old/arch/mips/kernel/entry.S linux.dev/arch/mips/kernel/entry.S ---- linux.old/arch/mips/kernel/entry.S 2003-08-25 13:44:40.000000000 +0200 -+++ linux.dev/arch/mips/kernel/entry.S 2005-06-01 20:10:36.000000000 +0200 -@@ -100,6 +100,10 @@ - * and R4400 SC and MC versions. - */ - NESTED(except_vec3_generic, 0, sp) -+#ifdef CONFIG_BCM4710 -+ nop -+ nop -+#endif - #if R5432_CP0_INTERRUPT_WAR - mfc0 k0, CP0_INDEX - #endif |