diff options
Diffstat (limited to 'arch/arm/boards/a9m2410/lowlevel_init.S')
| -rw-r--r-- | arch/arm/boards/a9m2410/lowlevel_init.S | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/boards/a9m2410/lowlevel_init.S b/arch/arm/boards/a9m2410/lowlevel_init.S new file mode 100644 index 0000000000..461b93c3f1 --- /dev/null +++ b/arch/arm/boards/a9m2410/lowlevel_init.S @@ -0,0 +1,37 @@ +/* + * + */ + +#include <config.h> +#include <mach/s3c24x0-iomap.h> + + .section ".text_bare_init.board_init_lowlevel","ax" + +.globl board_init_lowlevel +board_init_lowlevel: + + mov r10, lr /* save the link register */ + + bl s3c24x0_disable_wd + + /* skip everything here if we are already running from SDRAM */ + cmp pc, #S3C24X0_SDRAM_BASE + blo 1f + cmp pc, #S3C24X0_SDRAM_END + bhs 1f + + mov pc, r10 + +/* we are running from NOR or NAND/SRAM memory. Do further initialisation */ +1: + bl s3c24x0_pll_init + + bl s3c24x0_sdram_init + +#ifdef CONFIG_S3C24XX_NAND_BOOT + mov lr, r10 /* restore the link register */ +/* up to here we are running from the internal SRAM area */ + b s3c24x0_nand_boot /* does return directly to our caller into SDRAM */ +#else + mov pc, r10 +#endif |