Patchwork [U-Boot,6/7] tegra: paz00: store environment in eMMC

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Submitter Stephen Warren
Date May 24, 2012, 9:38 p.m.
Message ID <1337895519-13502-6-git-send-email-swarren@wwwdotorg.org>
Download mbox | patch
Permalink /patch/161228/
State Accepted
Commit e87c2bda9c45bcfcc8239f6052d6fa9aec7351d6
Headers show

Comments

Stephen Warren - May 24, 2012, 9:38 p.m.
From: Stephen Warren <swarren@nvidia.com>

Store the environment in eMMC, at the end of the second boot sector.
This should not conflict with any other eMMC usage: U-Boot is stored
well below this location, and the kernel only uses the general area
of the eMMC once booted, not the boot sectors.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 include/configs/paz00.h |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

Patch

diff --git a/include/configs/paz00.h b/include/configs/paz00.h
index 3edd102..0390530 100644
--- a/include/configs/paz00.h
+++ b/include/configs/paz00.h
@@ -50,8 +50,10 @@ 
 #define CONFIG_CMD_EXT2
 #define CONFIG_CMD_FAT
 
-/* Environment not stored */
-#define CONFIG_ENV_IS_NOWHERE
+/* Environment in eMMC, at the end of 2nd "boot sector" */
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_ENV_OFFSET ((2 * 1024 * 1024) - CONFIG_ENV_SIZE)
+#define CONFIG_SYS_MMC_ENV_DEV 0
 
 /* USB Host support */
 #define CONFIG_USB_EHCI