*
* The processor starts at 0x00000100 and the code is executed
* from flash. The code is organized to be at an other address
- * in memory, but as long we don't jump around before relocating.
+ * in memory, but as long we don't jump around before relocating,
* board_init lies at a quite high address and when the cpu has
* jumped there, everything is ok.
* This works because the cpu gives the FLASH (CS0) the whole
* address space at startup, and board_init lies as a echo of
- * the flash somewhere up there in the memorymap.
+ * the flash somewhere up there in the memory map.
*
* board_init will change CS0 to be positioned at the correct
* address and (s)dram will be positioned at address 0
*/
#include <config.h>
#include <mpc8xx.h>
+#include <timestamp.h>
#include <version.h>
#define CONFIG_8xx 1 /* needed for Linux kernel header files */
GOT_ENTRY(__init_end)
GOT_ENTRY(_end)
GOT_ENTRY(__bss_start)
-#if defined(CONFIG_FADS) || defined(CONFIG_ICU862)
- GOT_ENTRY(environment)
-#endif
END_GOT
/*
.globl version_string
version_string:
.ascii U_BOOT_VERSION
- .ascii " (", __DATE__, " - ", __TIME__, ")"
+ .ascii " (", U_BOOT_DATE, " - ", U_BOOT_TIME, ")"
.ascii CONFIG_IDENT_STRING, "\0"
. = EXC_OFF_SYS_RESET
.globl _start
_start:
- lis r3, CFG_IMMR@h /* position IMMR */
+ lis r3, CONFIG_SYS_IMMR@h /* position IMMR */
mtspr 638, r3
li r21, BOOTFLAG_COLD /* Normal Power-On: Boot from FLASH */
b boot_cold
lis r3, IDC_DISABLE@h /* Disable data cache */
mtspr DC_CST, r3
-#if !(defined(CONFIG_IP860) || defined(CONFIG_PCU_E) || defined (CONFIG_FLAGADM))
+#if !defined(CONFIG_SYS_DELAYED_ICACHE)
/* On IP860 and PCU E,
* we cannot enable IC yet
*/
* Calculate absolute address in FLASH and jump there
*----------------------------------------------------------------------*/
- lis r3, CFG_MONITOR_BASE@h
- ori r3, r3, CFG_MONITOR_BASE@l
+ lis r3, CONFIG_SYS_MONITOR_BASE@h
+ ori r3, r3, CONFIG_SYS_MONITOR_BASE@l
addi r3, r3, in_flash - _start + EXC_OFF_SYS_RESET
mtlr r3
blr
/* initialize some SPRs that are hard to access from C */
/*----------------------------------------------------------------------*/
- lis r3, CFG_IMMR@h /* pass IMMR as arg1 to C routine */
- ori r1, r3, CFG_INIT_SP_OFFSET /* set up the stack in internal DPRAM */
+ lis r3, CONFIG_SYS_IMMR@h /* pass IMMR as arg1 to C routine */
+ ori r1, r3, CONFIG_SYS_INIT_SP_OFFSET /* set up the stack in internal DPRAM */
/* Note: R0 is still 0 here */
stwu r0, -4(r1) /* clear final stack frame so that */
stwu r0, -4(r1) /* stack backtraces terminate cleanly */
/* Set up debug mode entry */
- lis r2, CFG_DER@h
- ori r2, r2, CFG_DER@l
+ lis r2, CONFIG_SYS_DER@h
+ ori r2, r2, CONFIG_SYS_DER@l
mtspr DER, r2
/* let the C-code set up the rest */
bl board_init_f /* run 1st part of board init code (from Flash) */
-
.globl _start_of_vectors
_start_of_vectors:
/* Alignment exception. */
. = 0x600
Alignment:
- EXCEPTION_PROLOG
+ EXCEPTION_PROLOG(SRR0, SRR1)
mfspr r4,DAR
stw r4,_DAR(r21)
mfspr r5,DSISR
/* Program check exception */
. = 0x700
ProgramCheck:
- EXCEPTION_PROLOG
+ EXCEPTION_PROLOG(SRR0, SRR1)
addi r3,r1,STACK_FRAME_OVERHEAD
li r20,MSR_KERNEL
rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
STD_EXCEPTION(0x900, Decrementer, timer_interrupt)
STD_EXCEPTION(0xa00, Trap_0a, UnknownException)
STD_EXCEPTION(0xb00, Trap_0b, UnknownException)
-
- . = 0xc00
-/*
- * r0 - SYSCALL number
- * r3-... arguments
- */
-SystemCall:
- addis r11,r0,0 /* get functions table addr */
- ori r11,r11,0 /* Note: this code is patched in trap_init */
- addis r12,r0,0 /* get number of functions */
- ori r12,r12,0
-
- cmplw 0, r0, r12
- bge 1f
-
- rlwinm r0,r0,2,0,31 /* fn_addr = fn_tbl[r0] */
- add r11,r11,r0
- lwz r11,0(r11)
-
- li r20,0xd00-4 /* Get stack pointer */
- lwz r12,0(r20)
- subi r12,r12,12 /* Adjust stack pointer */
- li r0,0xc00+_end_back-SystemCall
- cmplw 0, r0, r12 /* Check stack overflow */
- bgt 1f
- stw r12,0(r20)
-
- mflr r0
- stw r0,0(r12)
- mfspr r0,SRR0
- stw r0,4(r12)
- mfspr r0,SRR1
- stw r0,8(r12)
-
- li r12,0xc00+_back-SystemCall
- mtlr r12
- mtspr SRR0,r11
-
-1: SYNC
- rfi
-
-_back:
-
- mfmsr r11 /* Disable interrupts */
- li r12,0
- ori r12,r12,MSR_EE
- andc r11,r11,r12
- SYNC /* Some chip revs need this... */
- mtmsr r11
- SYNC
-
- li r12,0xd00-4 /* restore regs */
- lwz r12,0(r12)
-
- lwz r11,0(r12)
- mtlr r11
- lwz r11,4(r12)
- mtspr SRR0,r11
- lwz r11,8(r12)
- mtspr SRR1,r11
-
- addi r12,r12,12 /* Adjust stack pointer */
- li r20,0xd00-4
- stw r12,0(r20)
-
- SYNC
- rfi
-_end_back:
-
+ STD_EXCEPTION(0xc00, SystemCall, UnknownException)
STD_EXCEPTION(0xd00, SingleStep, UnknownException)
STD_EXCEPTION(0xe00, Trap_0e, UnknownException)
mr r10, r5 /* Save copy of Destination Address */
mr r3, r5 /* Destination Address */
- lis r4, CFG_MONITOR_BASE@h /* Source Address */
- ori r4, r4, CFG_MONITOR_BASE@l
+ lis r4, CONFIG_SYS_MONITOR_BASE@h /* Source Address */
+ ori r4, r4, CONFIG_SYS_MONITOR_BASE@l
lwz r5, GOT(__init_end)
sub r5, r5, r4
- li r6, CFG_CACHELINE_SIZE /* Cache Line Size */
+ li r6, CONFIG_SYS_CACHELINE_SIZE /* Cache Line Size */
/*
* Fix GOT pointer:
*
- * New GOT-PTR = (old GOT-PTR - CFG_MONITOR_BASE) + Destination Address
+ * New GOT-PTR = (old GOT-PTR - CONFIG_SYS_MONITOR_BASE) + Destination Address
*
* Offset:
*/
/*
* Relocation Function, r14 point to got2+0x8000
*
- * Adjust got2 pointers, no need to check for 0, this code
- * already puts a few entries in the table.
+ * Adjust got2 pointers, no need to check for 0, this code
+ * already puts a few entries in the table.
*/
li r0,__got2_entries@sectoff@l
la r3,GOT(_GOT2_TABLE_)
sub r11,r3,r11
addi r3,r3,-4
1: lwzu r0,4(r3)
+ cmpwi r0,0
+ beq- 2f
add r0,r0,r11
stw r0,0(r3)
- bdnz 1b
+2: bdnz 1b
/*
- * Now adjust the fixups and the pointers to the fixups
+ * Now adjust the fixups and the pointers to the fixups
* in case we need to move ourselves again.
*/
-2: li r0,__fixup_entries@sectoff@l
+ li r0,__fixup_entries@sectoff@l
lwz r3,GOT(_FIXUP_TABLE_)
cmpwi r0,0
mtctr r0
* Now clear BSS segment
*/
lwz r3,GOT(__bss_start)
-#if defined(CONFIG_FADS) || defined(CONFIG_ICU862)
- /*
- * For the FADS - the environment is the very last item in flash.
- * The real .bss stops just before environment starts, so only
- * clear up to that point.
- */
- lwz r4,GOT(environment)
-#else
lwz r4,GOT(_end)
-#endif
cmplw 0, r3, r4
beq 6f
projects / u-boot / blobdiff