[U-Boot] [PATCH 2/3] OMAP3: am3517_evm: Replace JFFS2 with UBI/UBIFS on NAND

[Derald D. Woods <woods.technical@gmail.com>]

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
---
 configs/am3517_evm_defconfig |   2 +
 include/configs/am3517_evm.h | 102 +++++++++++++++++++++++++++----------------
 2 files changed, 66 insertions(+), 38 deletions(-)

diff --git a/configs/am3517_evm_defconfig b/configs/am3517_evm_defconfig
index cde84fe..c7699e0 100644
--- a/configs/am3517_evm_defconfig
+++ b/configs/am3517_evm_defconfig
@@ -4,9 +4,11 @@ CONFIG_TARGET_AM3517_EVM=y
 CONFIG_SPL=y
 CONFIG_FIT=y
 CONFIG_SYS_PROMPT="AM3517_EVM # "
+CONFIG_SYS_EXTRA_OPTIONS="NAND"
 # CONFIG_CMD_IMI is not set
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 # CONFIG_CMD_FPGA is not set
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_GPIO=y
 CONFIG_SYS_NS16550=y
diff --git a/include/configs/am3517_evm.h b/include/configs/am3517_evm.h
index 98a59c5..734b8ba 100644
--- a/include/configs/am3517_evm.h
+++ b/include/configs/am3517_evm.h
@@ -34,8 +34,8 @@
 /*
  * Display CPU and Board information
  */
-#define CONFIG_DISPLAY_CPUINFO		1
-#define CONFIG_DISPLAY_BOARDINFO	1
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
 
 /* Clock Defines */
 #define V_OSCK			26000000	/* Clock output from T2 */
@@ -45,16 +45,16 @@
 
 #define CONFIG_OF_LIBFDT
 
-#define CONFIG_CMDLINE_TAG		1	/* enable passing of ATAGs */
-#define CONFIG_SETUP_MEMORY_TAGS	1
-#define CONFIG_INITRD_TAG		1
-#define CONFIG_REVISION_TAG		1
+#define CONFIG_CMDLINE_TAG		/* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+#define CONFIG_REVISION_TAG
 
 /*
  * Size of malloc() pool
  */
 #define CONFIG_ENV_SIZE			(128 << 10)	/* 128 KiB sector */
-#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + (128 << 10))
+#define CONFIG_SYS_MALLOC_LEN		(16 << 20)
 /*
  * DDR related
  */
@@ -90,10 +90,10 @@
 #define CONFIG_BAUDRATE			115200
 #define CONFIG_SYS_BAUDRATE_TABLE	{4800, 9600, 19200, 38400, 57600,\
 					115200}
-#define CONFIG_MMC			1
-#define CONFIG_GENERIC_MMC		1
-#define CONFIG_OMAP_HSMMC		1
-#define CONFIG_DOS_PARTITION		1
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_OMAP_HSMMC
+#define CONFIG_DOS_PARTITION
 
 /*
  * USB configuration
@@ -129,11 +129,15 @@
 #endif /* CONFIG_USB_MUSB_AM35X */
 
 /* commands to include */
-#define CONFIG_CMD_EXT2		/* EXT2 Support			*/
+#define CONFIG_CMD_CACHE
 #define CONFIG_CMD_FAT		/* FAT support			*/
-#define CONFIG_CMD_JFFS2	/* JFFS2 Support		*/
+#define CONFIG_CMD_EXT2		/* EXT2 Support			*/
 #define CONFIG_CMD_EXT4
 #define CONFIG_CMD_EXT4_WRITE
+#define CONFIG_CMD_FS_GENERIC
+#define CONFIG_PARTITION_UUIDS
+#define CONFIG_CMD_PART
+#define CONFIG_CMD_ASKENV
 
 #define CONFIG_CMD_BOOTZ
 
@@ -141,8 +145,7 @@
 #define CONFIG_CMD_MMC		/* MMC support			*/
 #define CONFIG_CMD_NAND		/* NAND support			*/
 #define CONFIG_CMD_DHCP
-#undef CONFIG_CMD_PING
-
+#define CONFIG_CMD_PING
 
 #define CONFIG_SYS_NO_FLASH
 #define CONFIG_SYS_I2C
@@ -162,9 +165,33 @@
 #define CONFIG_BOOTP_SEND_HOSTNAME
 #define CONFIG_NET_RETRY_COUNT		10
 
-/*
- * Board NAND Info.
+/* UBI and NAND partitioning */
+#define CONFIG_CMD_UBI		/* UBI-formated MTD partition support */
+#define CONFIG_CMD_UBIFS	/* Read-only UBI volume operations */
+#define CONFIG_RBTREE		/* required by CONFIG_CMD_UBI */
+#define CONFIG_LZO		/* required by CONFIG_CMD_UBIFS */
+#define CONFIG_MTD_PARTITIONS	/* required for UBI partition support */
+#define CONFIG_MTD_DEVICE
+#define CONFIG_CMD_MTDPARTS
+/* NAND block size is 128 KiB.  Synchronize these values with
+ * corresponding Device Tree entries in Linux:
+ *  MLO(SPL)             4 * NAND_BLOCK_SIZE = 512 KiB  @ 0x000000
+ *  U-Boot              15 * NAND_BLOCK_SIZE = 1920 KiB @ 0x080000
+ *  U-Boot environment   2 * NAND_BLOCK_SIZE = 256 KiB  @ 0x260000
+ *  Kernel              64 * NAND_BLOCK_SIZE = 8 MiB    @ 0x2A0000
+ *  DTB                  4 * NAND_BLOCK_SIZE = 512 KiB  @ 0xAA0000
+ *  RootFS              Remaining Flash Space           @ 0xB20000
  */
+#define MTDIDS_DEFAULT "nand0=omap2-nand.0"
+#define MTDPARTS_DEFAULT "mtdparts=omap2-nand.0:"	\
+	"512k(MLO),"					\
+	"1920k(u-boot),"				\
+	"256k(u-boot-env),"				\
+	"8m(kernel),"					\
+	"512k(dtb),"					\
+	"-(rootfs)"
+
+/* Board NAND Info. */
 #define CONFIG_SYS_NAND_ADDR		NAND_BASE	/* physical address */
 							/* to access nand */
 #define CONFIG_SYS_NAND_BASE		NAND_BASE	/* physical address */
@@ -173,13 +200,6 @@
 
 #define CONFIG_SYS_MAX_NAND_DEVICE	1		/* Max number of */
 							/* NAND devices */
-#define CONFIG_JFFS2_NAND
-/* nand device jffs2 lives on */
-#define CONFIG_JFFS2_DEV		"nand0"
-/* start of jffs2 partition */
-#define CONFIG_JFFS2_PART_OFFSET	0x680000
-#define CONFIG_JFFS2_PART_SIZE		0xf980000	/* sz of jffs2 part */
-
 /* Environment information */
 #define CONFIG_BOOTDELAY	10
 
@@ -194,18 +214,24 @@
 	"bootenv=uEnv.txt\0" \
 	"cmdline=\0" \
 	"optargs=\0" \
+	"mtdids=" MTDIDS_DEFAULT "\0" \
+	"mtdparts=" MTDPARTS_DEFAULT "\0" \
 	"mmcdev=0\0" \
 	"mmcpart=1\0" \
 	"mmcroot=/dev/mmcblk0p2 rw\0" \
 	"mmcrootfstype=ext4 rootwait fixrtc\0" \
 	"mmcargs=setenv bootargs console=${console} " \
+		"${mtdparts} " \
 		"${optargs} " \
 		"root=${mmcroot} " \
 		"rootfstype=${mmcrootfstype} " \
 		"${cmdline}\0" \
 	"nandargs=setenv bootargs console=${console} " \
-		"root=/dev/mtdblock4 rw " \
-		"rootfstype=jffs2\0" \
+		"${mtdparts} " \
+		"${optargs} " \
+		"root=ubi0:rootfs rw ubi.mtd=rootfs " \
+		"rootfstype=ubifs rootwait " \
+		"${cmdline}\0" \
 	"loadbootenv=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${bootenv}\0"\
 	"importbootenv=echo Importing environment from mmc ...; " \
 		"env import -t ${loadaddr} ${filesize}\0" \
@@ -218,8 +244,9 @@
 		"bootz ${loadaddr} - ${fdtaddr}\0" \
 	"nandboot=echo Booting from nand ...; " \
 		"run nandargs; " \
-		"nand read ${loadaddr} 280000 400000; " \
-		"bootm ${loadaddr}\0" \
+		"nand read ${loadaddr} 2a0000 800000; " \
+		"nand read ${fdtaddr} aa0000 80000; " \
+		"bootm ${loadaddr} - ${fdtaddr}\0" \
 
 #define CONFIG_BOOTCOMMAND \
 	"mmc dev ${mmcdev}; if mmc rescan; then " \
@@ -240,17 +267,19 @@
 		"fi; " \
 	"else run nandboot; fi"
 
-#define CONFIG_AUTO_COMPLETE	1
 /*
  * Miscellaneous configurable options
  */
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_CMDLINE_EDITING
+#define CONFIG_VERSION_VARIABLE
 #define CONFIG_SYS_LONGHELP		/* undef to save memory */
 #define CONFIG_SYS_HUSH_PARSER		/* use "hush" command parser */
 #define CONFIG_SYS_CBSIZE		512	/* Console I/O Buffer Size */
 /* Print Buffer Size */
 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
 					sizeof(CONFIG_SYS_PROMPT) + 16)
-#define CONFIG_SYS_MAXARGS		32	/* max number of command */
+#define CONFIG_SYS_MAXARGS		64	/* max number of command */
 						/* args */
 /* Boot Argument Buffer Size */
 #define CONFIG_SYS_BARGSIZE		(CONFIG_SYS_CBSIZE)
@@ -287,7 +316,7 @@
 #define CONFIG_SYS_MAX_FLASH_BANKS	2	/* max number of flash banks */
 #define CONFIG_SYS_MONITOR_LEN		(256 << 10)	/* Reserve 2 sectors */
 
-#if defined(CONFIG_CMD_NAND)
+#if defined(CONFIG_NAND)
 #define CONFIG_SYS_FLASH_BASE		NAND_BASE
 #endif
 
@@ -295,7 +324,7 @@
 #define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_FLASH_BASE
 
 #define CONFIG_NAND_OMAP_GPMC
-#define CONFIG_ENV_IS_IN_NAND		1
+#define CONFIG_ENV_IS_IN_NAND
 #define SMNAND_ENV_OFFSET		0x260000 /* environment starts here */
 
 #define CONFIG_SYS_ENV_SECT_SIZE	(128 << 10)	/* 128 KiB */
@@ -309,13 +338,9 @@
 #define CONFIG_SYS_FLASH_ERASE_TOUT	(100 * CONFIG_SYS_HZ)
 #define CONFIG_SYS_FLASH_WRITE_TOUT	(100 * CONFIG_SYS_HZ)
 
-/* Flash banks JFFS2 should use */
+/* Flash banks available */
 #define CONFIG_SYS_MAX_MTD_BANKS	(CONFIG_SYS_MAX_FLASH_BANKS + \
 					CONFIG_SYS_MAX_NAND_DEVICE)
-#define CONFIG_SYS_JFFS2_MEM_NAND
-/* use flash_info[2] */
-#define CONFIG_SYS_JFFS2_FIRST_BANK	CONFIG_SYS_MAX_FLASH_BANKS
-#define CONFIG_SYS_JFFS2_NUM_BANKS	1
 
 #define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
 #define CONFIG_SYS_INIT_RAM_ADDR	0x4020f800
@@ -337,7 +362,7 @@
 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR	0x300 /* address 0x60000 */
 #define CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS	0x200 /* 256 KB */
 #define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION	1
-#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME	"u-boot.img"
+#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME		"u-boot.img"
 
 #define CONFIG_SPL_LIBCOMMON_SUPPORT
 #define CONFIG_SPL_LIBDISK_SUPPORT
@@ -350,6 +375,7 @@
 #define CONFIG_SPL_NAND_BASE
 #define CONFIG_SPL_NAND_DRIVERS
 #define CONFIG_SPL_NAND_ECC
+#define CONFIG_SPL_MTD_SUPPORT
 #define CONFIG_SPL_POWER_SUPPORT
 #define CONFIG_SPL_LDSCRIPT		"$(CPUDIR)/omap-common/u-boot-spl.lds"
 
-- 
2.7.2