[U-Boot] [PATCH 3/3] ARM: tegra: make use of negative ENV_OFFSET on NVIDIA boards

[Stephen Warren]

From: Stephen Warren <swarren at nvidia.com>

Use a negative value of CONFIG_ENV_OFFSET for all NVIDIA reference boards
that store the U-Boot environment in the 2nd eMMC boot partition. This
makes U-Boot agnostic to the size of the eMMC boot partition, which can
vary depending on which eMMC device was actually stuffed into the board.

Signed-off-by: Stephen Warren <swarren at nvidia.com>
---
 include/configs/beaver.h   |    2 +-
 include/configs/cardhu.h   |    2 +-
 include/configs/dalmore.h  |    2 +-
 include/configs/paz00.h    |    2 +-
 include/configs/seaboard.h |    2 +-
 include/configs/ventana.h  |    2 +-
 include/configs/whistler.h |    4 ++--
 7 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/configs/beaver.h b/include/configs/beaver.h
index 058da4f..d51f5f8 100644
--- a/include/configs/beaver.h
+++ b/include/configs/beaver.h
@@ -56,7 +56,7 @@
 
 /* Environment in eMMC, at the end of 2nd "boot sector" */
 #define CONFIG_ENV_IS_IN_MMC
-#define CONFIG_ENV_OFFSET		((1024 * 1024) - CONFIG_ENV_SIZE)
+#define CONFIG_ENV_OFFSET		(-CONFIG_ENV_SIZE)
 #define CONFIG_SYS_MMC_ENV_DEV		0
 #define CONFIG_SYS_MMC_ENV_PART		2
 
diff --git a/include/configs/cardhu.h b/include/configs/cardhu.h
index fd46083..142d20b 100644
--- a/include/configs/cardhu.h
+++ b/include/configs/cardhu.h
@@ -55,7 +55,7 @@
 
 /* Environment in eMMC, at the end of 2nd "boot sector" */
 #define CONFIG_ENV_IS_IN_MMC
-#define CONFIG_ENV_OFFSET		((512 * 1024) - CONFIG_ENV_SIZE)
+#define CONFIG_ENV_OFFSET		(-CONFIG_ENV_SIZE)
 #define CONFIG_SYS_MMC_ENV_DEV		0
 #define CONFIG_SYS_MMC_ENV_PART		2
 
diff --git a/include/configs/dalmore.h b/include/configs/dalmore.h
index 2723843..b6e0161 100644
--- a/include/configs/dalmore.h
+++ b/include/configs/dalmore.h
@@ -60,7 +60,7 @@
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_SYS_MMC_ENV_DEV		0
 #define CONFIG_SYS_MMC_ENV_PART		2
-#define CONFIG_ENV_OFFSET		((4096 * 1024) - CONFIG_ENV_SIZE)
+#define CONFIG_ENV_OFFSET		(-CONFIG_ENV_SIZE)
 
 #define MACH_TYPE_DALMORE	4304	/* not yet in mach-types.h */
 
diff --git a/include/configs/paz00.h b/include/configs/paz00.h
index eac1ef9..9e2686a 100644
--- a/include/configs/paz00.h
+++ b/include/configs/paz00.h
@@ -46,7 +46,7 @@
 
 /* Environment in eMMC, at the end of 2nd "boot sector" */
 #define CONFIG_ENV_IS_IN_MMC
-#define CONFIG_ENV_OFFSET ((1024 * 1024) - CONFIG_ENV_SIZE)
+#define CONFIG_ENV_OFFSET (-CONFIG_ENV_SIZE)
 #define CONFIG_SYS_MMC_ENV_DEV 0
 #define CONFIG_SYS_MMC_ENV_PART 2
 
diff --git a/include/configs/seaboard.h b/include/configs/seaboard.h
index f66173e..f0da1fc 100644
--- a/include/configs/seaboard.h
+++ b/include/configs/seaboard.h
@@ -72,7 +72,7 @@
 
 /* Environment in eMMC, at the end of 2nd "boot sector" */
 #define CONFIG_ENV_IS_IN_MMC
-#define CONFIG_ENV_OFFSET ((512 * 1024) - CONFIG_ENV_SIZE)
+#define CONFIG_ENV_OFFSET (-CONFIG_ENV_SIZE)
 #define CONFIG_SYS_MMC_ENV_DEV 0
 #define CONFIG_SYS_MMC_ENV_PART 2
 
diff --git a/include/configs/ventana.h b/include/configs/ventana.h
index 5755f11..41a7176 100644
--- a/include/configs/ventana.h
+++ b/include/configs/ventana.h
@@ -52,7 +52,7 @@
 
 /* Environment in eMMC, at the end of 2nd "boot sector" */
 #define CONFIG_ENV_IS_IN_MMC
-#define CONFIG_ENV_OFFSET ((1024 * 1024) - CONFIG_ENV_SIZE)
+#define CONFIG_ENV_OFFSET (-CONFIG_ENV_SIZE)
 #define CONFIG_SYS_MMC_ENV_DEV 0
 #define CONFIG_SYS_MMC_ENV_PART 2
 
diff --git a/include/configs/whistler.h b/include/configs/whistler.h
index 9542c7e..994edec 100644
--- a/include/configs/whistler.h
+++ b/include/configs/whistler.h
@@ -61,12 +61,12 @@
 
 /*
  * Environment in eMMC, at the end of 2nd "boot sector". Note: This assumes
- * the user plugged the standard 8MB MoviNAND card into J29/HSMMC/POP. If
+ * the user plugged the standard 8GB MoviNAND card into J29/HSMMC/POP. If
  * they didn't, the boot sector layout may be different. However, use of that
  * particular card is standard practice as far as I know.
  */
 #define CONFIG_ENV_IS_IN_MMC
-#define CONFIG_ENV_OFFSET ((512 * 1024) - CONFIG_ENV_SIZE)
+#define CONFIG_ENV_OFFSET (-CONFIG_ENV_SIZE)
 #define CONFIG_SYS_MMC_ENV_DEV 0
 #define CONFIG_SYS_MMC_ENV_PART 2
 
-- 
1.7.10.4