#include <config.h>
#include <timestamp.h>
#include "version.h"
+#include <asm/cache.h>
#ifndef CONFIG_IDENT_STRING
#define CONFIG_IDENT_STRING ""
#endif
-/* last three long word reserved for cache status */
-#define CACR_STATUS (CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END-12)
-#define ICACHE_STATUS (CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END- 8)
-#define DCACHE_STATUS (CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END- 4)
-
#define _START _start
#define _FAULT _fault
.long TEXT_BASE /* image to be relocated at */
asm_dram_init:
+ move.w #0x2700,%sr /* Mask off Interrupt */
+
+ move.l #CONFIG_SYS_INIT_RAM_ADDR, %d0
+ movec %d0, %VBR
+
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_CTRL), %d0
- movec %d0, %RAMBAR1 /* init Rambar */
+ movec %d0, %RAMBAR1
+
+ /* initialize general use internal ram */
+ move.l #0, %d0
+ move.l #(ICACHE_STATUS), %a1 /* icache */
+ move.l #(DCACHE_STATUS), %a2 /* dcache */
+ move.l %d0, (%a1)
+ move.l %d0, (%a2)
+
+ /* invalidate and disable cache */
+ move.l #(CONFIG_SYS_ICACHE_INV + CONFIG_SYS_DCACHE_INV), %d0
+ movec %d0, %CACR /* Invalidate cache */
+ move.l #0, %d0
+ movec %d0, %ACR0
+ movec %d0, %ACR1
+ movec %d0, %ACR2
+ movec %d0, %ACR3
+
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
clr.l %sp@-
move.l #0xFC008004, %a1
move.l #(CONFIG_SYS_CS0_MASK), (%a1)
- /*
- * Dram Initialization
- * a1, a2, and d0
- */
+ /* Dram Initialization a1, a2, and d0 */
/* mscr sdram */
move.l #0xFC0A4074, %a1
move.b #(CONFIG_SYS_SDRAM_DRV_STRENGTH), (%a1)
move.l #0xFC0B8000, %a1 /* Mode */
move.l #0xFC0B8004, %a2 /* Ctrl */
-#ifdef CONFIG_M54455EVB
/* Issue PALL */
move.l #(CONFIG_SYS_SDRAM_CTRL + 2), (%a2)
nop
+#ifdef CONFIG_M54455EVB
/* Issue LEMR */
move.l #(CONFIG_SYS_SDRAM_EMOD + 0x408), (%a1)
nop
move.l #(CONFIG_SYS_SDRAM_MODE + 0x300), (%a1)
nop
-
- move.l #1000, %d0
-wait1000:
- nop
- subq.l #1, %d0
- bne wait1000
#endif
+ move.l #1000, %d1
+ jsr asm_delay
+
/* Issue PALL */
move.l #(CONFIG_SYS_SDRAM_CTRL + 2), (%a2)
nop
nop
#elif defined(CONFIG_M54451EVB)
/* Issue LEMR */
- move.l #(CONFIG_SYS_SDRAM_MODE), (%a2)
- nop
- move.l #(CONFIG_SYS_SDRAM_EMOD), (%a2)
+ move.l #(CONFIG_SYS_SDRAM_MODE), (%a1)
nop
+ move.l #(CONFIG_SYS_SDRAM_EMOD), (%a1)
#endif
- move.l #500, %d0
-wait500:
- nop
- subq.l #1, %d0
- bne wait500
+ move.l #500, %d1
+ jsr asm_delay
- move.l #(CONFIG_SYS_SDRAM_CTRL), %d0
- and.l #0x7FFFFFFF, %d0
+ move.l #(CONFIG_SYS_SDRAM_CTRL), %d1
+ and.l #0x7FFFFFFF, %d1
#ifdef CONFIG_M54455EVB
- or.l #0x10000c00, %d0
+ or.l #0x10000C00, %d1
#elif defined(CONFIG_M54451EVB)
- or.l #0x10000000, %d0
+ or.l #0x10000C00, %d1
#endif
- move.l %d0, (%a2)
+ move.l %d1, (%a2)
nop
+ move.l #2000, %d1
+ jsr asm_delay
+
/*
* DSPI Initialization
* a0 - general, sram - 0x80008000 - 32, see M54455EVB.h
* a4 - Dst addr
*/
/* Enable pins for DSPI mode - chip-selects are enabled later */
+asm_dspi_init:
move.l #0xFC0A4063, %a0
move.b #0x7F, (%a0)
move.b (%a3), %d1
rts
+
+asm_delay:
+ nop
+ subq.l #1, %d1
+ bne asm_delay
+ rts
#endif /* CONFIG_CF_SBF */
.text
. = 0x400
.globl _start
_start:
+#if !defined(CONFIG_CF_SBF)
nop
nop
move.w #0x2700,%sr /* Mask off Interrupt */
/* Set vector base register at the beginning of the Flash */
-#if defined(CONFIG_CF_SBF)
- move.l #TEXT_BASE, %d0
- movec %d0, %VBR
-#else
move.l #CONFIG_SYS_FLASH_BASE, %d0
movec %d0, %VBR
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_CTRL), %d0
movec %d0, %RAMBAR1
-#endif
/* initialize general use internal ram */
move.l #0, %d0
- move.l #(CACR_STATUS), %a1 /* CACR */
- move.l #(ICACHE_STATUS), %a2 /* icache */
- move.l #(DCACHE_STATUS), %a3 /* dcache */
+ move.l #(ICACHE_STATUS), %a1 /* icache */
+ move.l #(DCACHE_STATUS), %a2 /* dcache */
move.l %d0, (%a1)
move.l %d0, (%a2)
- move.l %d0, (%a3)
/* invalidate and disable cache */
- move.l #0x01004100, %d0 /* Invalidate cache cmd */
+ move.l #(CONFIG_SYS_ICACHE_INV + CONFIG_SYS_DCACHE_INV), %d0
movec %d0, %CACR /* Invalidate cache */
move.l #0, %d0
movec %d0, %ACR0
the first c-code */
move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp
clr.l %sp@-
+#endif
move.l #__got_start, %a5 /* put relocation table address to a5 */
addql #4,%sp
RESTORE_ALL
-/*------------------------------------------------------------------------------*/
-/* cache functions */
- .globl icache_enable
-icache_enable:
- move.l #(CACR_STATUS), %a1 /* read CACR Status */
- move.l (%a1), %d1
-
- move.l #0x00040100, %d0 /* Invalidate icache */
- movec %d0, %CACR
-
- move.l #(CONFIG_SYS_SDRAM_BASE + 0x1c000), %d0 /* Setup icache */
- movec %d0, %ACR2
-
- move.l #0x04088020, %d0 /* Enable bcache and icache */
- movec %d0, %CACR
-
- move.l #(ICACHE_STATUS), %a1
- moveq #1, %d0
- move.l %d0, (%a1)
- rts
-
- .globl icache_disable
-icache_disable:
- move.l #(CACR_STATUS), %a1 /* read CACR Status */
- move.l (%a1), %d0
-
- move.l #0xFFF77BFF, %d0
- or.l #0x00040100, %d0 /* Setup cache mask */
- movec %d0, %CACR /* Invalidate icache */
- clr.l %d0
- movec %d0, %ACR2
- movec %d0, %ACR3
-
- move.l #(ICACHE_STATUS), %a1
- moveq #0, %d0
- move.l %d0, (%a1)
- rts
-
- .globl icache_status
-icache_status:
- move.l #(ICACHE_STATUS), %a1
- move.l (%a1), %d0
- rts
-
- .globl icache_invalid
-icache_invalid:
- move.l #(CACR_STATUS), %a1 /* read CACR Status */
- move.l (%a1), %d0
-
- move.l #0x00040100, %d0 /* Invalidate icache */
- movec %d0, %CACR /* Enable and invalidate cache */
- rts
-
- .globl dcache_enable
-dcache_enable:
- move.l #(CACR_STATUS), %a1 /* read CACR Status */
- move.l (%a1), %d1
-
- move.l #0x01040100, %d0
- movec %d0, %CACR /* Invalidate dcache */
-
- move.l #0x80088020, %d0 /* Enable bcache and icache */
- movec %d0, %CACR
-
- move.l #(DCACHE_STATUS), %a1
- moveq #1, %d0
- move.l %d0, (%a1)
- rts
-
- .globl dcache_disable
-dcache_disable:
- move.l #(CACR_STATUS), %a1 /* read CACR Status */
- move.l (%a1), %d0
-
- and.l #0x7FFFFFFF, %d0
- or.l #0x01000000, %d0 /* Setup cache mask */
- movec %d0, %CACR /* Disable dcache */
- clr.l %d0
- movec %d0, %ACR0
- movec %d0, %ACR1
-
- move.l #(DCACHE_STATUS), %a1
- moveq #0, %d0
- move.l %d0, (%a1)
- rts
-
- .globl dcache_invalid
-dcache_invalid:
- move.l #(CACR_STATUS), %a1 /* read CACR Status */
- move.l (%a1), %d0
-
- move.l #0x81088020, %d0 /* Setup cache mask */
- movec %d0, %CACR /* Enable and invalidate cache */
- rts
-
- .globl dcache_status
-dcache_status:
- move.l #(DCACHE_STATUS), %a1
- move.l (%a1), %d0
- rts
-
/*------------------------------------------------------------------------------*/
.globl version_string
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