diff options
Diffstat (limited to 'arch/arm/cpu/arm926ejs/mxs/start.S')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/mxs/start.S | 36 |
1 files changed, 9 insertions, 27 deletions
diff --git a/arch/arm/cpu/arm926ejs/mxs/start.S b/arch/arm/cpu/arm926ejs/mxs/start.S index 3e454ae1bc..34a0fcb462 100644 --- a/arch/arm/cpu/arm926ejs/mxs/start.S +++ b/arch/arm/cpu/arm926ejs/mxs/start.S @@ -101,32 +101,6 @@ fiq: ************************************************************************* */ -.globl _TEXT_BASE -_TEXT_BASE: -#ifdef CONFIG_SPL_TEXT_BASE - .word CONFIG_SPL_TEXT_BASE -#else - .word CONFIG_SYS_TEXT_BASE -#endif - -/* - * These are defined in the board-specific linker script. - * Subtracting _start from them lets the linker put their - * relative position in the executable instead of leaving - * them null. - */ -.globl _bss_start_ofs -_bss_start_ofs: - .word __bss_start - _start - -.globl _bss_end_ofs -_bss_end_ofs: - .word __bss_end - _start - -.globl _end_ofs -_end_ofs: - .word _end - _start - #ifdef CONFIG_USE_IRQ /* IRQ stack memory (calculated at run-time) */ .globl IRQ_STACK_START @@ -150,6 +124,15 @@ IRQ_STACK_START_IN: _reset: /* + * If the CPU is configured in "Wait JTAG connection mode", the stack + * pointer is not configured and is zero. This will cause crash when + * trying to push data onto stack right below here. Load the SP and make + * it point to the end of OCRAM if the SP is zero. + */ + cmp sp, #0x00000000 + ldreq sp, =CONFIG_SYS_INIT_SP_ADDR + + /* * Store all registers on old stack pointer, this will allow us later to * return to the BootROM and let the BootROM load U-Boot into RAM. * @@ -198,6 +181,5 @@ _reset: bx lr _hang: - ldr sp, _TEXT_BASE /* switch to abort stack */ 1: bl 1b /* hang and never return */ |