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Diffstat (limited to 'cpu/mcf52x2/start.S')
-rw-r--r--cpu/mcf52x2/start.S54
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