Patchwork [U-Boot] arm/km: add addbootcount environment variable

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Submitter Valentin Longchamp
Date April 8, 2011, 12:47 p.m.
Message ID <ab89ca576a2ad8bcde3b08039a71a9a7695a7eef.1302266367.git.valentin.longchamp@keymile.com>
Download mbox | patch
Permalink /patch/90332/
State Superseded
Headers show

Comments

Valentin Longchamp - April 8, 2011, 12:47 p.m.
From: Holger Brunck <holger.brunck@keymile.com>

This environment variable is used to set the bootcount address
for the kernel.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Heiko Schocher <hs@denx.de>
cc: Wolfgang Denk <wd@denx.de>
cc: Detlev Zundel <dzu@denx.de>
cc: Valentin Longchamp <valentin.longchamp@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
---
 board/keymile/common/common.c |    7 +++++++
 include/configs/km_arm.h      |    3 +++
 2 files changed, 10 insertions(+), 0 deletions(-)

Patch

diff --git a/board/keymile/common/common.c b/board/keymile/common/common.c
index 3a7980d..9ec0022 100644
--- a/board/keymile/common/common.c
+++ b/board/keymile/common/common.c
@@ -106,6 +106,13 @@  int set_km_env(void)
 	varaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM - CONFIG_KM_PHRAM;
 	sprintf((char *)buf, "0x%x", varaddr);
 	setenv("varaddr", (char *)buf);
+
+#ifdef BOOTCOUNT_ADDR
+	unsigned int bootcountaddr;
+	bootcountaddr = gd->ram_size - CONFIG_KM_RESERVED_PRAM;
+	sprintf((char *)buf, "0x%x", bootcountaddr);
+	setenv("bootcountaddr", (char *)buf);
+#endif
 	return 0;
 }
 
diff --git a/include/configs/km_arm.h b/include/configs/km_arm.h
index 70113d4..89f9d35 100644
--- a/include/configs/km_arm.h
+++ b/include/configs/km_arm.h
@@ -64,6 +64,9 @@ 
 #define CONFIG_KM_KERNEL_ADDR	0x2000000	/* 4096KBytes */
 
 #define CONFIG_KM_DEF_ENV_CPU						\
+	"addbootcount="							\
+		"setenv bootargs ${bootargs} "				\
+		"bootcountaddr=${bootcountaddr}\0"			\
 	"addmtdparts=setenv bootargs ${bootargs} ${mtdparts}\0"		\
 	"boot=bootm ${actual_kernel_addr} - -\0"			\
 	"cramfsloadfdt=echo \\\\c\0"					\