From: Albert ARIBAUD Date: Sun, 19 May 2013 01:48:12 +0000 (+0000) Subject: mx31pdk: copy SPL directly, not using relocate_code. X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=3acb324ff1597d7e2ac6597d18cdb96d49ec8d93;p=u-boot.git mx31pdk: copy SPL directly, not using relocate_code. Signed-off-by: Albert ARIBAUD Reviewed-by: Benoît Thébaudeau Tested-by: Simon Glass --- diff --git a/board/freescale/mx31pdk/mx31pdk.c b/board/freescale/mx31pdk/mx31pdk.c index 49158bd90d..4f6cfeeaa3 100644 --- a/board/freescale/mx31pdk/mx31pdk.c +++ b/board/freescale/mx31pdk/mx31pdk.c @@ -39,7 +39,21 @@ DECLARE_GLOBAL_DATA_PTR; #ifdef CONFIG_SPL_BUILD void board_init_f(ulong bootflag) { - relocate_code(CONFIG_SPL_TEXT_BASE); + /* + * copy ourselves from where we are running to where we were + * linked at. Use ulong pointers as all addresses involved + * are 4-byte-aligned. + */ + ulong *start_ptr, *end_ptr, *link_ptr, *run_ptr, *dst; + asm volatile ("ldr %0, =_start" : "=r"(start_ptr)); + asm volatile ("ldr %0, =_end" : "=r"(end_ptr)); + asm volatile ("ldr %0, =board_init_f" : "=r"(link_ptr)); + asm volatile ("adr %0, board_init_f" : "=r"(run_ptr)); + for (dst = start_ptr; dst < end_ptr; dst++) + *dst = *(dst+(run_ptr-link_ptr)); + /* + * branch to nand_boot's link-time address. + */ asm volatile("ldr pc, =nand_boot"); } #endif