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

From 109d44956988f3121d264e451f677df8647411a5 Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Wed, 28 Sep 2016 09:58:30 -0500
Subject: [PATCH] at91sam9x5ek: uEnv.txt, bootz, n fixes

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
---
 configs/at91sam9x5ek_mmc_defconfig |  3 ++
 include/configs/at91sam9x5ek.h     | 58 ++++++++++++++++++++++++++++++--------
 2 files changed, 49 insertions(+), 12 deletions(-)

diff --git a/configs/at91sam9x5ek_mmc_defconfig b/configs/at91sam9x5ek_mmc_defconfig
index eb88bbb..ad9e442 100644
--- a/configs/at91sam9x5ek_mmc_defconfig
+++ b/configs/at91sam9x5ek_mmc_defconfig
@@ -16,7 +16,10 @@ CONFIG_CMD_USB=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_DHCP=y
 CONFIG_CMD_PING=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
 CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
 CONFIG_CMD_UBI=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_ATMEL=y
diff --git a/include/configs/at91sam9x5ek.h b/include/configs/at91sam9x5ek.h
index edad1dd..3c6aab2 100644
--- a/include/configs/at91sam9x5ek.h
+++ b/include/configs/at91sam9x5ek.h
@@ -117,6 +117,7 @@
 #define CONFIG_MMC
 #define CONFIG_GENERIC_MMC
 #define CONFIG_GENERIC_ATMEL_MCI
+#define CONFIG_SUPPORT_RAW_INITRD
 #endif
 
 /* FAT */
@@ -191,18 +192,51 @@
 #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
-- 
2.9.3