diff options
Diffstat (limited to 'cpu/ppc4xx/start.S')
| -rw-r--r-- | cpu/ppc4xx/start.S | 24 |
1 files changed, 8 insertions, 16 deletions
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S index 003c5b6..48b430d 100644 --- a/cpu/ppc4xx/start.S +++ b/cpu/ppc4xx/start.S @@ -42,7 +42,7 @@ /* LICENSED MATERIAL - PROGRAM PROPERTY OF I B M */ /*------------------------------------------------------------------------------- */ -/* U-Boot - Startup Code for IBM 4xx PowerPC based Embedded Boards +/* U-Boot - Startup Code for AMCC 4xx PowerPC based Embedded Boards * * * The processor starts at 0xfffffffc and the code is executed @@ -166,7 +166,7 @@ _start_440: mtspr srr1,r0 mtspr csrr0,r0 mtspr csrr1,r0 -#if defined (CONFIG_440GX) /* NOTE: 440GX adds machine check status regs */ +#if defined(CONFIG_440GX) || defined(CONFIG_440SP) /* NOTE: 440GX adds machine check status regs */ mtspr mcsrr0,r0 mtspr mcsrr1,r0 mfspr r1, mcsr @@ -394,7 +394,7 @@ __440gx_msr_continue: addi r3,r3,32 bdnz ..d_ag #else -#if defined (CONFIG_440GX) +#if defined (CONFIG_440GX) || defined(CONFIG_440SP) mtdcr l2_cache_cfg,r0 /* Ensure L2 Cache is off */ #endif mtdcr isram0_sb1cr,r0 /* Disable bank 1 */ @@ -409,7 +409,7 @@ __440gx_msr_continue: mtdcr isram0_pmeg,r1 lis r1,0x8000 /* BAS = 8000_0000 */ -#if defined(CONFIG_440GX) +#if defined(CONFIG_440GX) || defined(CONFIG_440SP) ori r1,r1,0x0980 /* first 64k */ mtdcr isram0_sb0cr,r1 lis r1,0x8001 @@ -432,7 +432,6 @@ __440gx_msr_continue: /*----------------------------------------------------------------*/ lis r1,CFG_INIT_RAM_ADDR@h ori r1,r1,CFG_INIT_SP_OFFSET@l - li r0,0 stwu r0,-4(r1) stwu r0,-4(r1) /* Terminate call chain */ @@ -444,6 +443,8 @@ __440gx_msr_continue: stw r0,+12(r1) /* Save return addr (underflow vect) */ GET_GOT + + bl cpu_init_f /* run low-level CPU init code (from Flash) */ bl board_init_f #endif /* CONFIG_440 */ @@ -975,12 +976,8 @@ invalidate_icache: invalidate_dcache: addi r6,0,0x0000 /* clear GPR 6 */ /* Do loop for # of dcache congruence classes. */ -#if defined(CONFIG_440GX) || defined(CONFIG_440EP) || defined(CONFIG_440GR) lis r7, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@ha /* TBS for large sized cache */ ori r7, r7, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@l -#else - addi r7,r0, (CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2) -#endif /* NOTE: dccci invalidates both */ mtctr r7 /* ways in the D cache */ ..dcloop: @@ -1001,15 +998,10 @@ flush_dcache: mtdccr r10 /* do loop for # of congruence classes. */ -#if defined(CONFIG_440GX) || defined(CONFIG_440EP) || defined(CONFIG_440GR) lis r10,(CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@ha /* TBS: for large cache sizes */ ori r10,r10,(CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2)@l lis r11,(CFG_DCACHE_SIZE / 2)@ha /* D cache set size - 2 way sets */ ori r11,r11,(CFG_DCACHE_SIZE / 2)@l /* D cache set size - 2 way sets */ -#else - addi r10,r0,(CFG_DCACHE_SIZE / CFG_CACHELINE_SIZE / 2) - addi r11,r0,(CFG_DCACHE_SIZE / 2) /* D cache set size - 2 way sets */ -#endif mtctr r10 addi r10,r0,(0xE000-0x10000) /* start at 0xFFFFE000 */ add r11,r10,r11 /* add to get to other side of cache line */ @@ -1231,9 +1223,9 @@ relocate_code: #if defined(CONFIG_440EP) || defined(CONFIG_440GR) dccci 0,0 /* Invalidate data cache, now no longer our stack */ sync - addi r1,r0,0x0000 /* Tlb entry #0 */ + addi r1,r0,0x0000 /* TLB entry #0 */ tlbre r0,r1,0x0002 /* Read contents */ - ori r0,r0,0x0c00 /* Or in the inhibit, write through bit */ + ori r0,r0,0x0c00 /* Or in the inhibit, write through bit */ tlbwe r0,r1,0x0002 /* Save it out */ isync #endif |