/*
* U-Boot - Startup Code for MPC5xxx CPUs
*/
+#include <asm-offsets.h>
#include <config.h>
#include <mpc5xxx.h>
-#include <timestamp.h>
#include <version.h>
#define CONFIG_MPC5xxx 1 /* needed for Linux kernel header files */
#include <asm/cache.h>
#include <asm/mmu.h>
-
-#ifndef CONFIG_IDENT_STRING
-#define CONFIG_IDENT_STRING ""
-#endif
+#include <asm/u-boot.h>
/* We don't want the MMU yet.
*/
#define MSR_KERNEL (MSR_FP|MSR_ME|MSR_RI)
#endif
+#ifndef CONFIG_SPL_BUILD
/*
* Set up GOT: Global Offset Table
*
GOT_ENTRY(transfer_to_handler)
GOT_ENTRY(__init_end)
- GOT_ENTRY(_end)
+ GOT_ENTRY(__bss_end__)
GOT_ENTRY(__bss_start)
END_GOT
+#endif
/*
* Version string
.data
.globl version_string
version_string:
- .ascii U_BOOT_VERSION
- .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
- .ascii CONFIG_IDENT_STRING, "\0"
+ .ascii U_BOOT_VERSION_STRING, "\0"
/*
* Exception vectors
. = EXC_OFF_SYS_RESET
.globl _start
_start:
- li r21, BOOTFLAG_COLD /* Normal Power-On */
- nop
- b boot_cold
-
- . = EXC_OFF_SYS_RESET + 0x10
- .globl _start_warm
-_start_warm:
- li r21, BOOTFLAG_WARM /* Software reboot */
- b boot_warm
-
-boot_cold:
-boot_warm:
+#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
+ /*
+ * This is the entry of the real U-Boot from a board port
+ * that supports SPL booting on the MPC5200. We only need
+ * to call board_init_f() here. Everything else has already
+ * been done in the SPL u-boot version.
+ */
+ GET_GOT /* initialize GOT access */
+ bl board_init_f /* run 1st part of board init code (in Flash)*/
+ /* NOTREACHED - board_init_f() does not return */
+#else
mfmsr r5 /* save msr contents */
/* Move CSBoot and adjust instruction pointer */
/* Be careful to keep code relocatable ! */
/*--------------------------------------------------------------*/
+#ifndef CONFIG_SPL_BUILD
GET_GOT /* initialize GOT access */
+#endif
/* r3: IMMR */
bl cpu_init_f /* run low-level CPU init code (in Flash)*/
- mr r3, r21
- /* r3: BOOTFLAG */
bl board_init_f /* run 1st part of board init code (in Flash)*/
+ /* NOTREACHED - board_init_f() does not return */
+#endif
+
+#ifndef CONFIG_SPL_BUILD
/*
* Vector Table
*/
lwz r1,GPR1(r1)
SYNC
rfi
+#endif /* CONFIG_SPL_BUILD */
/*
* This code initialises the MPC5xxx processor core
mfspr r3, PVR
blr
+#ifndef CONFIG_SPL_BUILD
/*------------------------------------------------------------------------------*/
/*
beq 4f
3: lwzu r4,4(r3)
lwzux r0,r4,r11
+ cmpwi r0,0
add r0,r0,r11
- stw r10,0(r3)
+ stw r4,0(r3)
+ beq- 5f
stw r0,0(r4)
- bdnz 3b
+5: bdnz 3b
4:
clear_bss:
/*
* Now clear BSS segment
*/
lwz r3,GOT(__bss_start)
- lwz r4,GOT(_end)
+ lwz r4,GOT(__bss_end__)
cmplw 0, r3, r4
beq 6f
mtlr r4 /* restore link register */
blr
+
+#endif /* CONFIG_SPL_BUILD */