diff options
Diffstat (limited to 'cpu/mcf52x2/start.S')
| -rw-r--r-- | cpu/mcf52x2/start.S | 54 |
1 files changed, 44 insertions, 10 deletions
diff --git a/cpu/mcf52x2/start.S b/cpu/mcf52x2/start.S index 7c9a7d2..686e2a5 100644 --- a/cpu/mcf52x2/start.S +++ b/cpu/mcf52x2/start.S @@ -121,7 +121,7 @@ _start: nop move.w #0x2700,%sr -#if defined(CONFIG_M5272) || defined(CONFIG_M5249) +#if defined(CONFIG_M5272) || defined(CONFIG_M5249) || defined(CONFIG_M5253) move.l #(CFG_MBAR + 1), %d0 /* set MBAR address + valid flag */ move.c %d0, %MBAR @@ -133,7 +133,7 @@ _start: move.l #(CFG_INIT_RAM_ADDR + 1), %d0 movec %d0, %RAMBAR0 -#endif /* #if defined(CONFIG_M5272) || defined(CONFIG_M5249) */ +#endif /* CONFIG_M5272 || CONFIG_M5249 || CONFIG_M5253 */ #if defined(CONFIG_M5282) || defined(CONFIG_M5271) /* Initialize IPSBAR */ @@ -159,7 +159,7 @@ _copy_flash: _flashbar_setup: /* Initialize FLASHBAR: locate internal Flash and validate it */ - move.l #(CFG_INT_FLASH_BASE + 0x21), %d0 + move.l #(CFG_INT_FLASH_BASE + CFG_INT_FLASH_ENABLE), %d0 movec %d0, %RAMBAR0 jmp _after_flashbar_copy.L /* Force jump to absolute address */ _flashbar_setup_end: @@ -167,7 +167,7 @@ _flashbar_setup_end: _after_flashbar_copy: #else /* Setup code to initialize FLASHBAR, if start from external Memory */ - move.l #(CFG_INT_FLASH_BASE + 0x21), %d0 + move.l #(CFG_INT_FLASH_BASE + CFG_INT_FLASH_ENABLE), %d0 movec %d0, %RAMBAR0 #endif /* (TEXT_BASE == CFG_INT_FLASH_BASE) */ @@ -326,10 +326,10 @@ clear_bss: /* set parameters for board_init_r */ move.l %a0,-(%sp) /* dest_addr */ move.l %d0,-(%sp) /* gd */ - #if defined(DEBUG) && (TEXT_BASE != CFG_INT_FLASH_BASE) && \ - defined(CFG_HALT_BEFOR_RAM_JUMP) - halt - #endif +#if defined(DEBUG) && (TEXT_BASE != CFG_INT_FLASH_BASE) && \ + defined(CFG_HALT_BEFOR_RAM_JUMP) + halt +#endif jsr (%a1) /*------------------------------------------------------------------------------*/ @@ -356,6 +356,24 @@ _int_handler: /*------------------------------------------------------------------------------*/ /* cache functions */ +#ifdef CONFIG_M5271 + .globl icache_enable +icache_enable: + move.l #0x01000000, %d0 /* Invalidate cache cmd */ + movec %d0, %CACR /* Invalidate cache */ + move.l #(CFG_SDRAM_BASE + 0xc000), %d0 /* Setup cache mask */ + movec %d0, %ACR0 /* Enable cache */ + + move.l #0x80000200, %d0 /* Setup cache mask */ + movec %d0, %CACR /* Enable cache */ + nop + + move.l #(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-8), %a1 + moveq #1, %d0 + move.l %d0, (%a1) + rts +#endif + #ifdef CONFIG_M5272 .globl icache_enable icache_enable: @@ -389,7 +407,7 @@ icache_state_access_1: rts #endif -#ifdef CONFIG_M5249 +#if defined(CONFIG_M5249) || defined(CONFIG_M5253) .globl icache_enable icache_enable: /* @@ -426,13 +444,29 @@ icache_state_access_2: .globl icache_status icache_status: icache_state_access_3: - move.l icache_state, %d0 + move.l #(icache_state), %a0 + move.l (%a0), %d0 rts .data icache_state: .long 0 /* cache is diabled on inirialization */ + .globl dcache_enable +dcache_enable: + /* dummy function */ + rts + + .globl dcache_disable +dcache_disable: + /* dummy function */ + rts + + .globl dcache_status +dcache_status: + /* dummy function */ + rts + /*------------------------------------------------------------------------------*/ .globl version_string |