diff options
Diffstat (limited to 'cpu/mcf532x/start.S')
| -rw-r--r-- | cpu/mcf532x/start.S | 52 |
1 files changed, 32 insertions, 20 deletions
diff --git a/cpu/mcf532x/start.S b/cpu/mcf532x/start.S index c806f7a96..a46c47adc 100644 --- a/cpu/mcf532x/start.S +++ b/cpu/mcf532x/start.S @@ -2,6 +2,9 @@ * Copyright (C) 2003 Josef Baumgartner <josef.baumgartner@telex.de> * Based on code from Bernhard Kuhn <bkuhn@metrowerks.com> * + * (C) Copyright 2004-2008 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.com) + * * See file CREDITS for list of people who contributed to this * project. * @@ -22,6 +25,7 @@ */ #include <config.h> +#include <timestamp.h> #include "version.h" #ifndef CONFIG_IDENT_STRING @@ -127,10 +131,10 @@ _start: move.w #0x2700,%sr /* Mask off Interrupt */ /* Set vector base register at the beginning of the Flash */ - move.l #CFG_FLASH_BASE, %d0 + move.l #CONFIG_SYS_FLASH_BASE, %d0 movec %d0, %VBR - move.l #(CFG_INIT_RAM_ADDR + CFG_INIT_RAM_CTRL), %d0 + move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_CTRL), %d0 movec %d0, %RAMBAR1 /* invalidate and disable cache */ @@ -140,16 +144,24 @@ _start: movec %d0, %ACR0 movec %d0, %ACR1 +#ifdef CONFIG_MCF5301x + move.l #(0xFC0a0010), %a0 + move.w (%a0), %d0 + and.l %d0, 0xEFFF + + move.w %d0, (%a0) +#endif + /* initialize general use internal ram */ move.l #0, %d0 - move.l #(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-8), %a1 - move.l #(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-4), %a2 + move.l #(CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END-8), %a1 + move.l #(CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END-4), %a2 move.l %d0, (%a1) move.l %d0, (%a2) /* set stackpointer to end of internal ram to get some stackspace for the first c-code */ - move.l #(CFG_INIT_RAM_ADDR + CFG_INIT_SP_OFFSET), %sp + move.l #(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET), %sp clr.l %sp@- move.l #__got_start, %a5 /* put relocation table address to a5 */ @@ -180,7 +192,7 @@ relocate_code: move.l 12(%a6), %d0 /* Save copy of Global Data pointer */ move.l 16(%a6), %a0 /* Save copy of Destination Address */ - move.l #CFG_MONITOR_BASE, %a1 + move.l #CONFIG_SYS_MONITOR_BASE, %a1 move.l #__init_end, %a2 move.l %a0, %a3 @@ -195,7 +207,7 @@ relocate_code: * initialization, now running from RAM. */ move.l %a0, %a1 - add.l #(in_ram - CFG_MONITOR_BASE), %a1 + add.l #(in_ram - CONFIG_SYS_MONITOR_BASE), %a1 jmp (%a1) in_ram: @@ -205,9 +217,9 @@ clear_bss: * Now clear BSS segment */ move.l %a0, %a1 - add.l #(_sbss - CFG_MONITOR_BASE),%a1 + add.l #(_sbss - CONFIG_SYS_MONITOR_BASE),%a1 move.l %a0, %d1 - add.l #(_ebss - CFG_MONITOR_BASE),%d1 + add.l #(_ebss - CONFIG_SYS_MONITOR_BASE),%d1 6: clr.l (%a1)+ cmp.l %a1,%d1 @@ -217,11 +229,11 @@ clear_bss: * fix got table in RAM */ move.l %a0, %a1 - add.l #(__got_start - CFG_MONITOR_BASE),%a1 + add.l #(__got_start - CONFIG_SYS_MONITOR_BASE),%a1 move.l %a1,%a5 /* * fix got pointer register a5 */ move.l %a0, %a2 - add.l #(__got_end - CFG_MONITOR_BASE),%a2 + add.l #(__got_end - CONFIG_SYS_MONITOR_BASE),%a2 7: move.l (%a1),%d1 @@ -233,7 +245,7 @@ clear_bss: /* calculate relative jump to board_init_r in ram */ move.l %a0, %a1 - add.l #(board_init_r - CFG_MONITOR_BASE), %a1 + add.l #(board_init_r - CONFIG_SYS_MONITOR_BASE), %a1 /* set parameters for board_init_r */ move.l %a0,-(%sp) /* dest_addr */ @@ -268,14 +280,14 @@ _int_handler: icache_enable: move.l #0x01000000, %d0 /* Invalidate cache cmd */ movec %d0, %CACR /* Invalidate cache */ - move.l #(CFG_SDRAM_BASE + 0x1c000), %d0 + move.l #(CONFIG_SYS_SDRAM_BASE + 0x1c000), %d0 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 + move.l #(CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END-8), %a1 moveq #1, %d0 move.l %d0, (%a1) rts @@ -288,14 +300,14 @@ icache_disable: movec %d0, %ACR0 movec %d0, %ACR1 - move.l #(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-8), %a1 + move.l #(CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END-8), %a1 moveq #0, %d0 move.l %d0, (%a1) rts .globl icache_status icache_status: - move.l #(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-8), %a1 + move.l #(CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END-8), %a1 move.l (%a1), %d0 rts @@ -307,7 +319,7 @@ icache_invalid: .globl dcache_enable dcache_enable: - move.l #(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-4), %a1 + move.l #(CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END-4), %a1 moveq #1, %d0 move.l %d0, (%a1) rts @@ -315,14 +327,14 @@ dcache_enable: /* No dcache, just a dummy function */ .globl dcache_disable dcache_disable: - move.l #(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-4), %a1 + move.l #(CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END-4), %a1 moveq #0, %d0 move.l %d0, (%a1) rts .globl dcache_status dcache_status: - move.l #(CFG_INIT_RAM_ADDR+CFG_INIT_RAM_END-4), %a1 + move.l #(CONFIG_SYS_INIT_RAM_ADDR+CONFIG_SYS_INIT_RAM_END-4), %a1 move.l (%a1), %d0 rts @@ -331,6 +343,6 @@ dcache_status: .globl version_string version_string: .ascii U_BOOT_VERSION - .ascii " (", __DATE__, " - ", __TIME__, ")" + .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")" .ascii CONFIG_IDENT_STRING, "\0" .align 4 |