ARM: uniphier: add sdscript, sdboot, sdupdate environment variables
Add handy macros:
- sdscript: source boot.scr in the file system of the SD media
- sdboot : boot the kernel using the images in the file system
of the SD media
- sdscript: update the boot firmware in the SD media
(in raw block sectors)
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/mach-uniphier/mmc-first-dev.c b/arch/arm/mach-uniphier/mmc-first-dev.c
index 149e662..e2f4f4e 100644
--- a/arch/arm/mach-uniphier/mmc-first-dev.c
+++ b/arch/arm/mach-uniphier/mmc-first-dev.c
@@ -9,13 +9,14 @@
#include <mmc.h>
#include <linux/errno.h>
-static int find_first_mmc_device(void)
+static int find_first_mmc_device(bool is_sd)
{
struct mmc *mmc;
int i;
for (i = 0; (mmc = find_mmc_device(i)); i++) {
- if (!mmc_init(mmc) && IS_MMC(mmc))
+ if (!mmc_init(mmc) &&
+ ((is_sd && IS_SD(mmc)) || (!is_sd && IS_MMC(mmc))))
return i;
}
@@ -24,14 +25,14 @@
int mmc_get_env_dev(void)
{
- return find_first_mmc_device();
+ return find_first_mmc_device(false);
}
static int do_mmcsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int dev;
- dev = find_first_mmc_device();
+ dev = find_first_mmc_device(false);
if (dev < 0)
return CMD_RET_FAILURE;
@@ -44,3 +45,21 @@
"Set the first MMC (not SD) dev number to \"mmc_first_dev\" environment",
""
);
+
+static int do_sdsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ int dev;
+
+ dev = find_first_mmc_device(true);
+ if (dev < 0)
+ return CMD_RET_FAILURE;
+
+ env_set_ulong("sd_first_dev", dev);
+ return CMD_RET_SUCCESS;
+}
+
+U_BOOT_CMD(
+ sdsetn, 1, 1, do_sdsetn,
+ "Set the first SD dev number to \"sd_first_dev\" environment",
+ ""
+);