diff options
author | Wolfgang Denk <wd@denx.de> | 2010-12-16 23:00:53 +0100 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2010-12-16 23:00:53 +0100 |
commit | 006915fbb0e3c1c9927fe32c4e92cb011f8499e7 (patch) | |
tree | b477df920f7d638a0472aa1d6bfa5ff71243448c /arch/arm/cpu/arm925t/start.S | |
parent | 98e69567022eb2138dd99554b3a2e80522a1b153 (diff) | |
parent | b5d58d8500bfb918c7fec56f241e6ee1078c2be0 (diff) | |
download | u-boot-imx-006915fbb0e3c1c9927fe32c4e92cb011f8499e7.zip u-boot-imx-006915fbb0e3c1c9927fe32c4e92cb011f8499e7.tar.gz u-boot-imx-006915fbb0e3c1c9927fe32c4e92cb011f8499e7.tar.bz2 |
Merge branch 'master' of ../master into next
Diffstat (limited to 'arch/arm/cpu/arm925t/start.S')
-rw-r--r-- | arch/arm/cpu/arm925t/start.S | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/arch/arm/cpu/arm925t/start.S b/arch/arm/cpu/arm925t/start.S index ce590a7..2c0c869 100644 --- a/arch/arm/cpu/arm925t/start.S +++ b/arch/arm/cpu/arm925t/start.S @@ -175,6 +175,7 @@ poll1: /* Set stackpointer in internal RAM to call board_init_f */ call_board_init_f: ldr sp, =(CONFIG_SYS_INIT_SP_ADDR) + bic sp, sp, #7 /* 8-byte alignment for ABI compliance */ ldr r0,=0x00000000 bl board_init_f @@ -192,22 +193,22 @@ relocate_code: mov r4, r0 /* save addr_sp */ mov r5, r1 /* save addr of gd */ mov r6, r2 /* save addr of destination */ - mov r7, r2 /* save addr of destination */ /* Set up the stack */ stack_setup: mov sp, r4 adr r0, _start + cmp r0, r6 + beq clear_bss /* skip relocation */ + mov r1, r6 /* r1 <- scratch for copy_loop */ ldr r2, _TEXT_BASE ldr r3, _bss_start_ofs add r2, r0, r3 /* r2 <- source end address */ - cmp r0, r6 - beq clear_bss copy_loop: ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r6!, {r9-r10} /* copy to target address [r1] */ + stmia r1!, {r9-r10} /* copy to target address [r1] */ cmp r0, r2 /* until source end address [r2] */ blo copy_loop @@ -216,7 +217,7 @@ copy_loop: * fix .rel.dyn relocations */ ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r7, r0 /* r9 <- relocation offset */ + sub r9, r6, r0 /* r9 <- relocation offset */ ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ add r10, r10, r0 /* r10 <- sym table in FLASH */ ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ @@ -227,10 +228,10 @@ fixloop: ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */ add r0, r0, r9 /* r0 <- location to fix up in RAM */ ldr r1, [r2, #4] - and r8, r1, #0xff - cmp r8, #23 /* relative fixup? */ + and r7, r1, #0xff + cmp r7, #23 /* relative fixup? */ beq fixrel - cmp r8, #2 /* absolute fixup? */ + cmp r7, #2 /* absolute fixup? */ beq fixabs /* ignore unknown type of fixup */ b fixnext @@ -239,7 +240,7 @@ fixabs: mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */ add r1, r10, r1 /* r1 <- address of symbol in table */ ldr r1, [r1, #4] /* r1 <- symbol value */ - add r1, r9 /* r1 <- relocated sym addr */ + add r1, r1, r9 /* r1 <- relocated sym addr */ b fixnext fixrel: /* relative fix: increase location by offset */ @@ -257,7 +258,7 @@ clear_bss: ldr r0, _bss_start_ofs ldr r1, _bss_end_ofs ldr r3, _TEXT_BASE /* Text base */ - mov r4, r7 /* reloc addr */ + mov r4, r6 /* reloc addr */ add r0, r0, r4 add r1, r1, r4 mov r2, #0x00000000 /* clear */ @@ -288,7 +289,7 @@ _nand_boot_ofs: add lr, lr, r9 /* setup parameters for board_init_r */ mov r0, r5 /* gd_t */ - mov r1, r7 /* dest_addr */ + mov r1, r6 /* dest_addr */ /* jump to it ... */ mov pc, lr |