omap3: implement boot parameter saving

Implements the saving of boot params passed by OMAP3 ROM code.

Signed-off-by: Simon Schwarz <simonschwarzcor@gmail.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

diff --git a/arch/arm/cpu/armv7/omap-common/spl.c b/arch/arm/cpu/armv7/omap-common/spl.c
index 53d10bf..3dd8e0d 100644 (file)
--- a/arch/arm/cpu/armv7/omap-common/spl.c
+++ b/arch/arm/cpu/armv7/omap-common/spl.c
@@ -194,8 +194,12 @@ static void mmc_load_image(void)
                printf("spl: mmc init failed: err - %d\n", err);
                hang();
        }
-
+/* For OMAP3 there is no automatic boot mode detection */
+#ifdef CONFIG_OMAP34XX
+       boot_mode = CONFIG_SYS_MMC_SD_BOOTMODE;
+#else
        boot_mode = omap_boot_mode();
+#endif
        if (boot_mode == MMCSD_MODE_RAW) {
                debug("boot mode - RAW\n");
                mmc_load_image_raw(mmc);

diff --git a/arch/arm/cpu/armv7/omap3/lowlevel_init.S b/arch/arm/cpu/armv7/omap3/lowlevel_init.S
index 48a7ec6..a308ebd 100644 (file)
--- a/arch/arm/cpu/armv7/omap3/lowlevel_init.S
+++ b/arch/arm/cpu/armv7/omap3/lowlevel_init.S
@@ -37,8 +37,13 @@ _TEXT_BASE:
 
 .global save_boot_params
 save_boot_params:
-       #warning "Please implement save_boot_params for OMAP3"
-       bx lr
+#ifdef CONFIG_SPL_BUILD
+       ldr     r4, =omap3_boot_device
+       ldr     r5, [r0, #0x4]
+       and     r5, r5, #0xff
+       str     r5, [r4]
+#endif
+       bx      lr
 
 .global omap3_gp_romcode_call
 omap3_gp_romcode_call: