From 1a43dc11a33de29712e5c5a0877d21bd6f6550c1 Mon Sep 17 00:00:00 2001
From: Soeren Moch <smoch@web.de>
Date: Thu, 4 Feb 2016 14:41:15 +0100
Subject: [PATCH] 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>
---
arch/arm/cpu/armv7/mx6/soc.c | 36 +++++++++++++++++++++++++++++++++---
1 file changed, 33 insertions(+), 3 deletions(-)
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index 8aeeaecfd2..db6eabf548 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)
--
2.39.5