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Diffstat (limited to 'arch/mips/lib/bootm.c')
-rw-r--r--arch/mips/lib/bootm.c21
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");