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authorSoeren Moch <smoch@web.de>2016-02-04 14:41:15 +0100
committerStefano Babic <sbabic@denx.de>2016-02-21 11:31:44 +0100
commit1a43dc11a33de29712e5c5a0877d21bd6f6550c1 (patch)
tree0f88009af6f5b92f17b4df1505476a6968f3d953 /arch/arm/cpu
parentc4068dfb31e16f5a27f7177a156cd7a4271ececb (diff)
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imx: mx6: Implement mmc_get_env_part
commit 216d286c7e3d3d83d4d8ccaf0415192e1b1040c0 [imx: mx6: implement mmc_get_env_dev] introduced selection of the environment device according to the boot device when booting from SD/MMC. Extend this functionality for also selecting the device partition. Signed-off-by: Soeren Moch <smoch@web.de>
Diffstat (limited to 'arch/arm/cpu')
-rw-r--r--arch/arm/cpu/armv7/mx6/soc.c36
1 files changed, 33 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index 8aeeaec..db6eabf 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -21,6 +21,7 @@
#include <asm/arch/crm_regs.h>
#include <dm.h>
#include <imx_thermal.h>
+#include <mmc.h>
enum ldo_reg {
LDO_ARM,
@@ -355,7 +356,7 @@ __weak int board_mmc_get_env_dev(int devno)
return CONFIG_SYS_MMC_ENV_DEV;
}
-int mmc_get_env_dev(void)
+static int mmc_get_boot_dev(void)
{
struct src *src_regs = (struct src *)SRC_BASE_ADDR;
u32 soc_sbmr = readl(&src_regs->sbmr1);
@@ -370,15 +371,44 @@ int mmc_get_env_dev(void)
*/
bootsel = (soc_sbmr & 0x000000FF) >> 6;
- /* If not boot from sd/mmc, use default value */
+ /* No boot from sd/mmc */
if (bootsel != 1)
- return CONFIG_SYS_MMC_ENV_DEV;
+ return -1;
/* BOOT_CFG2[3] and BOOT_CFG2[4] */
devno = (soc_sbmr & 0x00001800) >> 11;
+ return devno;
+}
+
+int mmc_get_env_dev(void)
+{
+ int devno = mmc_get_boot_dev();
+
+ /* If not boot from sd/mmc, use default value */
+ if (devno < 0)
+ return CONFIG_SYS_MMC_ENV_DEV;
+
return board_mmc_get_env_dev(devno);
}
+
+#ifdef CONFIG_SYS_MMC_ENV_PART
+__weak int board_mmc_get_env_part(int devno)
+{
+ return CONFIG_SYS_MMC_ENV_PART;
+}
+
+uint mmc_get_env_part(struct mmc *mmc)
+{
+ int devno = mmc_get_boot_dev();
+
+ /* If not boot from sd/mmc, use default value */
+ if (devno < 0)
+ return CONFIG_SYS_MMC_ENV_PART;
+
+ return board_mmc_get_env_part(devno);
+}
+#endif
#endif
int board_postclk_init(void)