[U-Boot,v2,5/6] am335x_evm: Add support for eMMC environment

Submitted by Justin Waters on July 11, 2013, 1:55 p.m.

Details

Message ID 1373550903-474-6-git-send-email-justin.waters@timesys.com
State Accepted
Delegated to: Tom Rini
Headers show

Commit Message

Justin Waters July 11, 2013, 1:55 p.m.
Some boards, such as the BeagleBone Black, have an eMMC chip intstead
of NAND. We can use the eMMC boot partition to store the environment,
since it isn't used for anything else. This allows us to have a
configurable environment on those boards.

Signed-off-by: Justin Waters <justin.waters@timesys.com>
---
 include/configs/am335x_evm.h |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

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diff --git a/include/configs/am335x_evm.h b/include/configs/am335x_evm.h
index 0df0e7a..e3f75cd 100644
--- a/include/configs/am335x_evm.h
+++ b/include/configs/am335x_evm.h
@@ -486,7 +486,12 @@ 
 # define CONFIG_ENV_SPI_MAX_HZ		CONFIG_SF_DEFAULT_SPEED
 # define CONFIG_ENV_OFFSET		(892 << 10) /* 892 KiB in */
 # define CONFIG_ENV_SECT_SIZE		(4 << 10) /* 4 KB sectors */
-#endif /* SPI support */
+#elif defined(CONFIG_EMMC_BOOT)
+# undef CONFIG_ENV_IS_NOWHERE
+# define CONFIG_ENV_IS_IN_MMC
+# define CONFIG_SYS_MMC_ENV_DEV		1
+# define CONFIG_SYS_MMC_ENV_PART	2
+#endif
 
 /* Unsupported features */
 #undef CONFIG_USE_IRQ