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| author | TsiChungLiew <Tsi-Chung.Liew@freescale.com> | 2007-08-15 19:21:21 -0500 |
|---|---|---|
| committer | John Rigby <jrigby@freescale.com> | 2007-08-16 17:43:20 -0600 |
| commit | 83ec20bc4380eebddfde45da6e3a69a92d4db21d (patch) | |
| tree | 57cbcef9eb99d47da3812cc43b34a97c9c27edd1 /cpu/mcf52x2/start.S | |
| parent | f52e78304dcc0ac459c0ea1fa5be275c7d1642cf (diff) | |
| download | u-boot-imx-83ec20bc4380eebddfde45da6e3a69a92d4db21d.zip u-boot-imx-83ec20bc4380eebddfde45da6e3a69a92d4db21d.tar.gz u-boot-imx-83ec20bc4380eebddfde45da6e3a69a92d4db21d.tar.bz2 | |
ColdFire: MCF52x2 update
Signed-off-by: TsiChungLiew <Tsi-Chung.Liew@freescale.com>
Diffstat (limited to 'cpu/mcf52x2/start.S')
| -rw-r--r-- | cpu/mcf52x2/start.S | 48 |
1 files changed, 41 insertions, 7 deletions
diff --git a/cpu/mcf52x2/start.S b/cpu/mcf52x2/start.S index 7c9a7d2..6783d4d 100644 --- a/cpu/mcf52x2/start.S +++ b/cpu/mcf52x2/start.S @@ -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: @@ -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 |