From c9b2feafaaf0a7998347589f9a29f7169873af6e Mon Sep 17 00:00:00 2001
From: Shaohui Xie <Shaohui.Xie@freescale.com>
Date: Tue, 28 Feb 2012 23:28:07 +0000
Subject: [PATCH] powerpc/p2041rdb: add NAND and NAND boot support

New P2041RDB board will add a NAND chip, so add support for NAND and
NAND boot.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
---
 boards.cfg                 |  1 +
 include/configs/P2041RDB.h | 54 +++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 52 insertions(+), 3 deletions(-)

diff --git a/boards.cfg b/boards.cfg
index 3cf75c3..1986da9 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -742,6 +742,7 @@ P2020RDB-PC_SPIFLASH         powerpc     mpc85xx     p1_p2_rdb_pc        freesca
 P2020RDB_SDCARD              powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P2020RDB,SDCARD
 P2020RDB_SPIFLASH            powerpc     mpc85xx     p1_p2_rdb           freescale      -           P1_P2_RDB:P2020RDB,SPIFLASH
 P2041RDB                     powerpc     mpc85xx     p2041rdb            freescale
+P2041RDB_NAND	             powerpc     mpc85xx     p2041rdb            freescale      -           P2041RDB:RAMBOOT_PBL,NAND,SYS_TEXT_BASE=0xFFF80000
 P2041RDB_SDCARD              powerpc     mpc85xx     p2041rdb            freescale      -           P2041RDB:RAMBOOT_PBL,SDCARD,SYS_TEXT_BASE=0xFFF80000
 P2041RDB_SECURE_BOOT         powerpc     mpc85xx     p2041rdb            freescale      -           P2041RDB:SECURE_BOOT
 P2041RDB_SPIFLASH            powerpc     mpc85xx     p2041rdb            freescale      -           P2041RDB:RAMBOOT_PBL,SPIFLASH,SYS_TEXT_BASE=0xFFF80000
diff --git a/include/configs/P2041RDB.h b/include/configs/P2041RDB.h
index da98f8f..501726c 100644
--- a/include/configs/P2041RDB.h
+++ b/include/configs/P2041RDB.h
@@ -186,10 +186,11 @@ unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_FLASH_BASE_PHYS	CONFIG_SYS_FLASH_BASE
 #endif
 
-#define CONFIG_SYS_BR0_PRELIM \
+#define CONFIG_SYS_FLASH_BR_PRELIM \
 		(BR_PHYS_ADDR(CONFIG_SYS_FLASH_BASE_PHYS) | BR_PS_16 | BR_V)
-#define CONFIG_SYS_OR0_PRELIM ((0xf8000ff7 & ~OR_GPCM_SCY & ~OR_GPCM_EHTR) \
-				| OR_GPCM_SCY_8 | OR_GPCM_EHTR_CLEAR)
+#define CONFIG_SYS_FLASH_OR_PRELIM \
+		((0xf8000ff7 & ~OR_GPCM_SCY & ~OR_GPCM_EHTR) \
+		 | OR_GPCM_SCY_8 | OR_GPCM_EHTR_CLEAR)
 
 #define CONFIG_FSL_CPLD
 #define CPLD_BASE		0xffdf0000	/* CPLD registers */
@@ -221,6 +222,53 @@ unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_RAMBOOT
 #endif
 
+#define CONFIG_NAND_FSL_ELBC
+/* Nand Flash */
+#ifdef CONFIG_NAND_FSL_ELBC
+#define CONFIG_SYS_NAND_BASE		0xffa00000
+#ifdef CONFIG_PHYS_64BIT
+#define CONFIG_SYS_NAND_BASE_PHYS	0xfffa00000ull
+#else
+#define CONFIG_SYS_NAND_BASE_PHYS	CONFIG_SYS_NAND_BASE
+#endif
+
+#define CONFIG_SYS_NAND_BASE_LIST     {CONFIG_SYS_NAND_BASE}
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+#define CONFIG_MTD_NAND_VERIFY_WRITE
+#define CONFIG_CMD_NAND
+#define CONFIG_SYS_NAND_BLOCK_SIZE    (128 * 1024)
+
+/* NAND flash config */
+#define CONFIG_SYS_NAND_BR_PRELIM  (BR_PHYS_ADDR(CONFIG_SYS_NAND_BASE_PHYS) \
+			       | (2<<BR_DECC_SHIFT)    /* Use HW ECC */ \
+			       | BR_PS_8	       /* Port Size = 8 bit */ \
+			       | BR_MS_FCM	       /* MSEL = FCM */ \
+			       | BR_V)		       /* valid */
+#define CONFIG_SYS_NAND_OR_PRELIM  (0xFFFC0000	      /* length 256K */ \
+			       | OR_FCM_PGS	       /* Large Page*/ \
+			       | OR_FCM_CSCT \
+			       | OR_FCM_CST \
+			       | OR_FCM_CHT \
+			       | OR_FCM_SCY_1 \
+			       | OR_FCM_TRLX \
+			       | OR_FCM_EHTR)
+
+#ifdef CONFIG_NAND
+#define CONFIG_SYS_BR0_PRELIM  CONFIG_SYS_NAND_BR_PRELIM /* NAND Base Address */
+#define CONFIG_SYS_OR0_PRELIM  CONFIG_SYS_NAND_OR_PRELIM /* NAND Options */
+#define CONFIG_SYS_BR1_PRELIM  CONFIG_SYS_FLASH_BR_PRELIM /* NOR Base Address */
+#define CONFIG_SYS_OR1_PRELIM  CONFIG_SYS_FLASH_OR_PRELIM /* NOR Options */
+#else
+#define CONFIG_SYS_BR0_PRELIM  CONFIG_SYS_FLASH_BR_PRELIM /* NOR Base Address */
+#define CONFIG_SYS_OR0_PRELIM  CONFIG_SYS_FLASH_OR_PRELIM /* NOR Options */
+#define CONFIG_SYS_BR1_PRELIM  CONFIG_SYS_NAND_BR_PRELIM /* NAND Base Address */
+#define CONFIG_SYS_OR1_PRELIM  CONFIG_SYS_NAND_OR_PRELIM /* NAND Options */
+#endif
+#else
+#define CONFIG_SYS_BR0_PRELIM  CONFIG_SYS_FLASH_BR_PRELIM /* NOR Base Address */
+#define CONFIG_SYS_OR0_PRELIM  CONFIG_SYS_FLASH_OR_PRELIM /* NOR Options */
+#endif /* CONFIG_NAND_FSL_ELBC */
+
 #define CONFIG_SYS_FLASH_EMPTY_INFO
 #define CONFIG_SYS_FLASH_AMD_CHECK_DQ7
 #define CONFIG_SYS_FLASH_BANKS_LIST	{CONFIG_SYS_FLASH_BASE_PHYS}
-- 
2.7.4