diff options
Diffstat (limited to 'arch/powerpc/cpu/ppc4xx/start.S')
| -rw-r--r-- | arch/powerpc/cpu/ppc4xx/start.S | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/arch/powerpc/cpu/ppc4xx/start.S b/arch/powerpc/cpu/ppc4xx/start.S index c739deb..5296dad 100644 --- a/arch/powerpc/cpu/ppc4xx/start.S +++ b/arch/powerpc/cpu/ppc4xx/start.S @@ -207,6 +207,10 @@ (0x00000000) #endif /* !defined(CONFIG_SYS_DCACHE_SACR_VALUE) */ +#if !defined(CONFIG_SYS_TLB_FOR_BOOT_FLASH) +#define CONFIG_SYS_TLB_FOR_BOOT_FLASH 0 /* use TLB 0 as default */ +#endif + #define function_prolog(func_name) .text; \ .align 2; \ .globl func_name; \ @@ -1457,34 +1461,21 @@ relocate_code: isync #endif /* CONFIG_SYS_INIT_RAM_DCACHE */ -#if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ - defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ - defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \ - defined(CONFIG_460EX) || defined(CONFIG_460GT) || \ - defined(CONFIG_460SX) /* * On some 440er platforms the cache is enabled in the first TLB (Boot-CS) * to speed up the boot process. Now this cache needs to be disabled. */ - iccci 0,0 /* Invalidate inst cache */ - dccci 0,0 /* Invalidate data cache, now no longer our stack */ - sync - isync - +#if defined(CONFIG_440) /* Clear all potential pending exceptions */ mfspr r1,SPRN_MCSR mtspr SPRN_MCSR,r1 -#ifdef CONFIG_SYS_TLB_FOR_BOOT_FLASH addi r1,r0,CONFIG_SYS_TLB_FOR_BOOT_FLASH /* Use defined TLB */ -#else - addi r1,r0,0x0000 /* Default TLB entry is #0 */ -#endif /* CONFIG_SYS_TLB_FOR_BOOT_FLASH */ tlbre r0,r1,0x0002 /* Read contents */ ori r0,r0,0x0c00 /* Or in the inhibit, write through bit */ tlbwe r0,r1,0x0002 /* Save it out */ sync isync -#endif /* defined(CONFIG_440EP) || ... || defined(CONFIG_460GT) */ +#endif /* defined(CONFIG_440) */ mr r1, r3 /* Set new stack pointer */ mr r9, r4 /* Save copy of Init Data pointer */ mr r10, r5 /* Save copy of Destination Address */ |