0001-at91sam9x5ek-uEnv.txt-bootz-n-fixes.patch

From bfb9c467c98313b04ddc69e11e27abedb6ea6617 Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Fri, 15 Mar 2013 10:15:16 -0500
Subject: [PATCH] at91sam9x5ek: uEnv.txt, bootz, n fixes

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
---
 include/configs/at91sam9x5ek.h |   67 ++++++++++++++++++++++++++++++++--------
 1 file changed, 54 insertions(+), 13 deletions(-)

diff --git a/include/configs/at91sam9x5ek.h b/include/configs/at91sam9x5ek.h
index 5dd2295..7f8980c 100644
--- a/include/configs/at91sam9x5ek.h
+++ b/include/configs/at91sam9x5ek.h
@@ -74,7 +74,7 @@
 #define CONFIG_ATMEL_LCD_RGB565
 #define CONFIG_SYS_CONSOLE_IS_IN_ENV
 
-#define CONFIG_BOOTDELAY	3
+#define CONFIG_BOOTDELAY	1
 
 /*
  * BOOTP options
@@ -160,6 +160,14 @@
 #define CONFIG_MMC
 #define CONFIG_GENERIC_MMC
 #define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_CMD_FAT
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_EXT4
+#define CONFIG_CMD_FS_GENERIC
+
+/* bootz: zImage/initrd.img support */
+#define CONFIG_CMD_BOOTZ
+#define CONFIG_SUPPORT_RAW_INITRD
 #endif
 
 /* FAT */
@@ -233,18 +241,51 @@
 #endif
 
 #ifdef CONFIG_SYS_USE_MMC
-#define CONFIG_BOOTARGS		"mem=128M console=ttyS0,115200 " \
-				"mtdparts=atmel_nand:" \
-				"8M(bootstrap/uboot/kernel)ro,-(rootfs) " \
-				"root=/dev/mmcblk0p2 " \
-				"rw rootfstype=ext4 rootwait"
-#else
-#define CONFIG_BOOTARGS							\
-	"console=ttyS0,115200 earlyprintk "				\
-	"mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro,"		\
-	"256k(env),256k(env_redundant),256k(spare),"			\
-	"512k(dtb),6M(kernel)ro,-(rootfs) "				\
-	"rootfstype=ubifs ubi.mtd=7 root=ubi0:rootfs rw"
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"initrd_high=0xffffffff\0" \
+	"fdt_high=0xffffffff\0" \
+	"loadaddr=0x22000000\0" \
+	"fdtaddr=0x27FF0000\0" \
+	"fdtfile=/dtbs/at91sam9g25ek.dtb\0" \
+	"console=ttyS0,115200n8\0" \
+	"optargs=\0" \
+	"video=\0" \
+	"mmcdev=0\0" \
+	"mmcpart=1\0" \
+	"mmcroot=/dev/mmcblk0p2 ro\0" \
+	"mmcrootfstype=ext4 rootwait\0" \
+	"mmcargs=setenv bootargs console=${console} " \
+		"${optargs} " \
+		"root=${mmcroot} " \
+		"rootfstype=${mmcrootfstype} " \
+		"video=${video}\0" \
+	"loadbootenv=load mmc ${mmcdev}:${mmcpart} ${loadaddr} uEnv.txt\0" \
+	"importbootenv=echo Importing environment from mmc (uEnv.txt)...; " \
+		"env import -t ${loadaddr} ${filesize}\0" \
+	"loadzimage=load mmc ${mmcdev}:${mmcpart} ${loadaddr} zImage\0" \
+	"loadfdt=load mmc ${mmcdev}:${mmcpart} ${fdtaddr} ${fdtfile}\0" \
+	"mmcboot=echo Booting from mmc ...; " \
+		"run mmcargs; " \
+		"bootz ${loadaddr} - ${fdtaddr}\0"
+
+#define CONFIG_BOOTCOMMAND \
+	"mmc dev ${mmcdev};" \
+	"if mmc rescan; then " \
+		"echo SD/MMC found on device ${mmcdev};" \
+		"if run loadbootenv; then " \
+			"run importbootenv;" \
+		"fi;" \
+		"echo Checking if uenvcmd is set ...;" \
+		"if test -n $uenvcmd; then " \
+			"echo Running uenvcmd ...;" \
+			"run uenvcmd;" \
+		"fi;" \
+		"echo Running default loadzimage ...;" \
+		"if run loadzimage; then " \
+			"run loadfdt;" \
+			"run mmcboot;" \
+		"fi;" \
+	"fi;"
 #endif
 
 #define CONFIG_BAUDRATE		115200
-- 
1.7.10.4