diff options
Diffstat (limited to 'arch/mips/lib/bootm.c')
| -rw-r--r-- | arch/mips/lib/bootm.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c index 692f7dc6ca..59ed632b42 100644 --- a/arch/mips/lib/bootm.c +++ b/arch/mips/lib/bootm.c @@ -27,6 +27,27 @@ static int linux_env_idx; static void linux_params_init(ulong start, char *commandline); static void linux_env_set(char *env_name, char *env_val); +static ulong arch_get_sp(void) +{ + ulong ret; + + __asm__ __volatile__("move %0, $sp" : "=r"(ret) : ); + + return ret; +} + +void arch_lmb_reserve(struct lmb *lmb) +{ + ulong sp; + + sp = arch_get_sp(); + debug("## Current stack ends at 0x%08lx\n", sp); + + /* adjust sp by 4K to be safe */ + sp -= 4096; + lmb_reserve(lmb, sp, CONFIG_SYS_SDRAM_BASE + gd->ram_size - sp); +} + static void boot_prep_linux(bootm_headers_t *images) { char *commandline = getenv("bootargs"); |
