mx28evk: Introduce a new target for saving env vars to NAND
Introduce 'mx28evk_nand' target for saving environment variables into NAND.
The mx28evk board does not come with a NAND flash populated from the
factory. It comes with an empty slot (U23), which allows the insertion of a
48-pin TSOP flash device.
Tested with a K9LBG08U0D.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Otavio Salvador <otavio@ossystems.com.br>
diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h
index 428fe86..d470b47 100644
--- a/include/configs/mx28evk.h
+++ b/include/configs/mx28evk.h
@@ -62,6 +62,7 @@
#define CONFIG_CMD_SPI
#define CONFIG_CMD_USB
#define CONFIG_CMD_BOOTZ
+#define CONFIG_CMD_NAND
/* Memory configurations */
#define CONFIG_NR_DRAM_BANKS 1 /* 1 bank of DRAM */
@@ -115,7 +116,6 @@
#define CONFIG_APBH_DMA
/* MMC Driver */
-#define CONFIG_ENV_IS_IN_MMC
#ifdef CONFIG_ENV_IS_IN_MMC
#define CONFIG_ENV_OFFSET (256 * 1024)
#define CONFIG_ENV_SIZE (16 * 1024)
@@ -130,11 +130,40 @@
#endif
/* NAND Driver */
+#define CONFIG_ENV_SIZE (16 * 1024)
#ifdef CONFIG_CMD_NAND
#define CONFIG_NAND_MXS
#define CONFIG_SYS_MAX_NAND_DEVICE 1
#define CONFIG_SYS_NAND_BASE 0x60000000
#define CONFIG_SYS_NAND_5_ADDR_CYCLE
+
+/* Environment is in NAND */
+#define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
+#define CONFIG_ENV_SECT_SIZE (128 * 1024)
+#define CONFIG_ENV_RANGE (512 * 1024)
+#ifndef CONFIG_ENV_OFFSET
+#define CONFIG_ENV_OFFSET 0x300000
+#endif
+#define CONFIG_ENV_OFFSET_REDUND \
+ (CONFIG_ENV_OFFSET + CONFIG_ENV_RANGE)
+
+#define CONFIG_CMD_UBI
+#define CONFIG_CMD_UBIFS
+#define CONFIG_CMD_MTDPARTS
+#define CONFIG_RBTREE
+#define CONFIG_LZO
+#define CONFIG_MTD_DEVICE
+#define CONFIG_MTD_PARTITIONS
+#define MTDIDS_DEFAULT "nand0=gpmi-nand"
+#define MTDPARTS_DEFAULT \
+ "mtdparts=gpmi-nand:" \
+ "3m(bootloader)ro," \
+ "512k(environment)," \
+ "512k(redundant-environment)," \
+ "4m(kernel)," \
+ "128k(fdt)," \
+ "8m(ramdisk)," \
+ "-(filesystem)"
#endif
/* Ethernet on SOC (FEC) */