ENGR00132617 MX53: add NAND support

Add NAND support for MX53 EVK and ARD.

Need to use kobs-ng to flash U-Boot on MX53 TO1. Because
MX51 TO1 ROM doesn't support bi swap solution and kernel
enable bi swap, Must enable "ignore bad block" option when
flashing U-Boot. The step is as following:
echo 1 > /sys/devices/platform/mxc_nandv2_flash.0/ignorebad
kobs-ng init --chip_0_device_path=/dev/mtd2 u-boot.bin
echo 0 > /sys/devices/platform/mxc_nandv2_flash.0/ignorebad

Since default configuration stores environment into SD
card and U-Boot uses get_mmc_env_devno (Read SBMR register)
to get MMC/SD slot information, you must insert SD card to
bottom SD slot to get/store environment if you are using NAND
boot on MX53 EVK.

You must config boot dip setting well when doing NAND boot.
For example, if you are using NAND 29F32G080AA NAND chip on
MX53 EVK, you can set boot dips as the following for NAND
boot: SW3: dip 7, 8 on; SW2: dip 3,5 on; SW1: dip 4,7,8 on.
Other dips are off.

Signed-off-by: Lily Zhang <r58066@freescale.com>

5 files changed, 411 insertions, 1 deletions

diff --git a/include/asm-arm/arch-mx53/mx53.h b/include/asm-arm/arch-mx53/mx53.h
index ab49a2f..a327b7f 100644
--- a/include/asm-arm/arch-mx53/mx53.h
+++ b/include/asm-arm/arch-mx53/mx53.h
@@ -418,7 +418,8 @@ enum mxc_clock {
 	MXC_ESDHC2_CLK,
 	MXC_ESDHC3_CLK,
 	MXC_ESDHC4_CLK,
-	MXC_SATA_CLK
+	MXC_SATA_CLK,
+	MXC_NFC_CLK,
 };
 
 enum mxc_peri_clocks {
diff --git a/include/asm-arm/arch-mx53/mxc_nand.h b/include/asm-arm/arch-mx53/mxc_nand.h
new file mode 100644
index 0000000..68c2dc6
--- /dev/null
+++ b/include/asm-arm/arch-mx53/mxc_nand.h
@@ -0,0 +1,379 @@
+/*
+ * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*!
+ * @file mxc_nand.h
+ *
+ * @brief This file contains the NAND Flash Controller register information.
+ *
+ *
+ * @ingroup NAND_MTD
+ */
+
+#ifndef __MXC_NAND_H__
+#define __MXC_NAND_H__
+
+#include <asm/arch/mx53.h>
+
+#define IS_2K_PAGE_NAND         ((mtd->writesize / info->num_of_intlv) \
+						== NAND_PAGESIZE_2KB)
+#define IS_4K_PAGE_NAND         ((mtd->writesize / info->num_of_intlv) \
+						== NAND_PAGESIZE_4KB)
+#define IS_LARGE_PAGE_NAND      ((mtd->writesize / info->num_of_intlv) > 512)
+
+#define GET_NAND_OOB_SIZE	(mtd->oobsize / info->num_of_intlv)
+#define GET_NAND_PAGE_SIZE      (mtd->writesize / info->num_of_intlv)
+
+/*
+ * main area for bad block marker is in the last data section
+ * the spare area for swapped bad block marker is the second
+ * byte of last spare section
+ */
+#define NAND_SECTIONS        (GET_NAND_PAGE_SIZE >> 9)
+#define NAND_OOB_PER_SECTION (((GET_NAND_OOB_SIZE / NAND_SECTIONS) >> 1) << 1)
+#define NAND_CHUNKS          (GET_NAND_PAGE_SIZE / (512 + NAND_OOB_PER_SECTION))
+
+#define BAD_BLK_MARKER_MAIN_OFFS \
+	(GET_NAND_PAGE_SIZE - NAND_CHUNKS * NAND_OOB_PER_SECTION)
+
+#define BAD_BLK_MARKER_SP_OFFS (NAND_CHUNKS * SPARE_LEN)
+
+#define BAD_BLK_MARKER_OOB_OFFS (NAND_CHUNKS * NAND_OOB_PER_SECTION)
+
+#define BAD_BLK_MARKER_MAIN  \
+	((u32)MAIN_AREA0 + BAD_BLK_MARKER_MAIN_OFFS)
+
+#define BAD_BLK_MARKER_SP  \
+	((u32)SPARE_AREA0 + BAD_BLK_MARKER_SP_OFFS)
+
+#define NAND_PAGESIZE_2KB	2048
+#define NAND_PAGESIZE_4KB	4096
+
+#define NFC_AXI_BASE_ADDR		NFC_BASE_ADDR_AXI
+#define NFC_IP_BASE_ADDR		NFC_BASE_ADDR
+#define MXC_INT_NANDFC			MXC_INT_NFC
+#define CONFIG_MXC_NFC_SP_AUTO
+#define NFC_FLASH_CMD			(NFC_AXI_BASE_ADDR + 0x1E00)
+#define NFC_FLASH_ADDR0			(NFC_AXI_BASE_ADDR + 0x1E04)
+#define NFC_FLASH_ADDR8			(NFC_AXI_BASE_ADDR + 0x1E24)
+#define NFC_CONFIG1			(NFC_AXI_BASE_ADDR + 0x1E34)
+#define NFC_ECC_STATUS_RESULT		(NFC_AXI_BASE_ADDR + 0x1E38)
+#define NFC_ECC_STATUS_SUM		(NFC_AXI_BASE_ADDR + 0x1E3C)
+#define LAUNCH_NFC			(NFC_AXI_BASE_ADDR + 0x1E40)
+#define NFC_WRPROT			(NFC_IP_BASE_ADDR + 0x00)
+#define NFC_WRPROT_UNLOCK_BLK_ADD0	(NFC_IP_BASE_ADDR + 0x04)
+#define NFC_CONFIG2			(NFC_IP_BASE_ADDR + 0x24)
+#define NFC_CONFIG3			(NFC_IP_BASE_ADDR + 0x28)
+#define NFC_IPC				(NFC_IP_BASE_ADDR + 0x2C)
+/*!
+ * Addresses for NFC RAM BUFFER Main area 0
+ */
+#define MAIN_AREA0			((u16 *)(NFC_AXI_BASE_ADDR + 0x000))
+#define MAIN_AREA1			((u16 *)(NFC_AXI_BASE_ADDR + 0x200))
+
+/*!
+ * Addresses for NFC SPARE BUFFER Spare area 0
+ */
+#define SPARE_AREA0			((u16 *)(NFC_AXI_BASE_ADDR + 0x1000))
+#define SPARE_LEN			64
+#define SPARE_COUNT			8
+#define SPARE_SIZE			(SPARE_LEN * SPARE_COUNT)
+
+#define NFC_SPAS_WIDTH 8
+#define NFC_SPAS_SHIFT 16
+
+#define NFC_SET_SPAS(v)			\
+	raw_write((((raw_read(NFC_CONFIG2) & \
+	NFC_FIELD_RESET(NFC_SPAS_WIDTH, NFC_SPAS_SHIFT)) | ((v) << 16))), \
+	NFC_CONFIG2)
+
+#define NFC_SET_ECC_MODE(v)		\
+do { \
+	if ((v) == NFC_SPAS_218 || (v) == NFC_SPAS_112) \
+		raw_write(((raw_read(NFC_CONFIG2) & \
+				~(3 << 6)) | \
+				NFC_ECC_MODE_16), NFC_CONFIG2); \
+	else \
+		raw_write(((raw_read(NFC_CONFIG2) & \
+				~(3 << 6)) | \
+				NFC_ECC_MODE_4), NFC_CONFIG2); \
+} while (0)
+
+#define WRITE_NFC_IP_REG(val, reg)			\
+	do {						\
+		raw_write(NFC_IPC_CREQ, NFC_IPC);	\
+		while (!((raw_read(NFC_IPC) & NFC_IPC_ACK)>>1)) \
+			; \
+		raw_write(val, reg);			\
+		raw_write(0, NFC_IPC);			\
+	} while (0)
+
+#define GET_NFC_ECC_STATUS() raw_read(REG_NFC_ECC_STATUS_RESULT);
+
+/*!
+ * Set 1 to specific operation bit, rest to 0 in LAUNCH_NFC Register for
+ * Specific operation
+ */
+#define NFC_CMD				0x1
+#define NFC_ADDR			0x2
+#define NFC_INPUT			0x4
+#define NFC_OUTPUT			0x8
+#define NFC_ID				0x10
+#define NFC_STATUS			0x20
+#define NFC_AUTO_PROG			0x40
+#define NFC_AUTO_READ			0x80
+#define NFC_AUTO_ERASE			0x200
+#define NFC_COPY_BACK_0			0x400
+#define NFC_COPY_BACK_1			0x800
+#define NFC_AUTO_STATE			0x1000
+
+/* Bit Definitions for NFC_IPC*/
+#define NFC_OPS_STAT			(1 << 31)
+#define NFC_OP_DONE			(1 << 30)
+#define NFC_RB				(1 << 28)
+#define NFC_PS_WIDTH			2
+#define NFC_PS_SHIFT			0
+#define NFC_PS_512			0
+#define NFC_PS_2K			1
+#define NFC_PS_4K			2
+
+
+#define NFC_ONE_CYCLE			(1 << 2)
+#define NFC_INT_MSK			(1 << 15)
+#define NFC_AUTO_PROG_DONE_MSK		(1 << 14)
+#define NFC_NUM_ADDR_PHASE1_WIDTH	2
+#define NFC_NUM_ADDR_PHASE1_SHIFT	12
+#define NFC_NUM_ADDR_PHASE0_WIDTH	1
+#define NFC_NUM_ADDR_PHASE0_SHIFT	5
+#define NFC_ONE_LESS_PHASE1		0
+#define NFC_TWO_LESS_PHASE1		1
+#define NFC_FLASH_ADDR_SHIFT		0
+#define NFC_UNLOCK_END_ADDR_SHIFT	16
+
+/* Bit definition for NFC_CONFIGRATION_1 */
+#define NFC_SP_EN			(1 << 0)
+#define NFC_CE				(1 << 1)
+#define NFC_RST				(1 << 2)
+#define NFC_ECC_EN			(1 << 3)
+
+#define NFC_FIELD_RESET(width, shift) (~(((1 << (width)) - 1) << (shift)))
+
+#define NFC_RBA_SHIFT			4
+#define NFC_RBA_WIDTH			3
+
+#define NFC_ITERATION_SHIFT 8
+#define NFC_ITERATION_WIDTH 4
+#define NFC_ACTIVE_CS_SHIFT 12
+#define NFC_ACTIVE_CS_WIDTH 3
+/* bit definition for CONFIGRATION3 */
+#define NFC_NO_SDMA			(1 << 20)
+#define NFC_FMP_SHIFT			16
+#define NFC_FMP_WIDTH			4
+#define NFC_RBB_MODE			(1 << 15)
+#define NFC_NUM_OF_DEVICES_SHIFT	12
+#define NFC_NUM_OF_DEVICES_WIDTH	4
+#define NFC_DMA_MODE_SHIFT		11
+#define NFC_DMA_MODE_WIDTH		1
+#define NFC_SBB_SHIFT			8
+#define NFC_SBB_WIDTH			3
+#define NFC_BIG				(1 << 7)
+#define NFC_SB2R_SHIFT			4
+#define NFC_SB2R_WIDTH			3
+#define NFC_FW_SHIFT			3
+#define NFC_FW_WIDTH			1
+#define NFC_TOO				(1 << 2)
+#define NFC_ADD_OP_SHIFT		0
+#define NFC_ADD_OP_WIDTH		2
+#define NFC_FW_8			1
+#define NFC_FW_16			0
+#define NFC_ST_CMD_SHITF		24
+#define NFC_ST_CMD_WIDTH		8
+
+#define NFC_PPB_32			(0 << 7)
+#define NFC_PPB_64			(1 << 7)
+#define NFC_PPB_128			(2 << 7)
+#define NFC_PPB_256			(3 << 7)
+#define NFC_PPB_RESET			(~(3 << 7))
+
+#define NFC_BLS_LOCKED			(0 << 6)
+#define NFC_BLS_LOCKED_DEFAULT		(1 << 6)
+#define NFC_BLS_UNLCOKED		(2 << 6)
+#define NFC_BLS_RESET			(~(3 << 16))
+#define NFC_WPC_LOCK_TIGHT		1
+#define NFC_WPC_LOCK			(1 << 1)
+#define NFC_WPC_UNLOCK			(1 << 2)
+#define NFC_WPC_RESET			(~(7))
+#define NFC_ECC_MODE_4			(0x0 << 6)
+#define NFC_ECC_MODE_8			(0x1 << 6)
+#define NFC_ECC_MODE_16                 (0x3 << 6)
+#define NFC_SPAS_16			8
+#define NFC_SPAS_64			32
+#define NFC_SPAS_128			64
+#define NFC_SPAS_112			56
+#define NFC_SPAS_218			109
+#define NFC_IPC_CREQ			(1 << 0)
+#define NFC_IPC_ACK			(1 << 1)
+
+#define REG_NFC_OPS_STAT		NFC_IPC
+#define REG_NFC_INTRRUPT		NFC_CONFIG2
+#define REG_NFC_FLASH_ADDR		NFC_FLASH_ADDR0
+#define REG_NFC_FLASH_CMD		NFC_FLASH_CMD
+#define REG_NFC_OPS			LAUNCH_NFC
+#define REG_NFC_SET_RBA			NFC_CONFIG1
+#define REG_NFC_RB			NFC_IPC
+#define REG_NFC_ECC_EN			NFC_CONFIG2
+#define REG_NFC_ECC_STATUS_RESULT	NFC_ECC_STATUS_RESULT
+#define REG_NFC_CE			NFC_CONFIG1
+#define REG_NFC_RST			NFC_CONFIG1
+#define REG_NFC_PPB			NFC_CONFIG2
+#define REG_NFC_SP_EN			NFC_CONFIG1
+#define REG_NFC_BLS			NFC_WRPROT
+#define REG_UNLOCK_BLK_ADD0		NFC_WRPROT_UNLOCK_BLK_ADD0
+#define REG_UNLOCK_BLK_ADD1		NFC_WRPROT_UNLOCK_BLK_ADD1
+#define REG_UNLOCK_BLK_ADD2		NFC_WRPROT_UNLOCK_BLK_ADD2
+#define REG_UNLOCK_BLK_ADD3		NFC_WRPROT_UNLOCK_BLK_ADD3
+#define REG_NFC_WPC			NFC_WRPROT
+#define REG_NFC_ONE_CYCLE		NFC_CONFIG2
+
+/* NFC V3 Specific MACRO functions definitions */
+#define raw_write(v, a)		__raw_writel(v, a)
+#define raw_read(a)		__raw_readl(a)
+
+/* Explcit ack ops status (if any), before issue of any command  */
+#define ACK_OPS	\
+	raw_write((raw_read(REG_NFC_OPS_STAT) & ~NFC_OPS_STAT), \
+	REG_NFC_OPS_STAT);
+
+/* Set RBA buffer id*/
+#define NFC_SET_RBA(val)       \
+	raw_write((raw_read(REG_NFC_SET_RBA) & \
+	(NFC_FIELD_RESET(NFC_RBA_WIDTH, NFC_RBA_SHIFT))) | \
+	((val) << NFC_RBA_SHIFT), REG_NFC_SET_RBA);
+
+#define NFC_SET_PS(val)       \
+	raw_write((raw_read(NFC_CONFIG2) & \
+	(NFC_FIELD_RESET(NFC_PS_WIDTH, NFC_PS_SHIFT))) | \
+	((val) << NFC_PS_SHIFT), NFC_CONFIG2);
+
+#define UNLOCK_ADDR(start_addr, end_addr)     \
+{ \
+	int i = 0; \
+	for (; i < NAND_MAX_CHIPS; i++)  \
+		raw_write(start_addr | \
+		(end_addr << NFC_UNLOCK_END_ADDR_SHIFT), \
+		REG_UNLOCK_BLK_ADD0 + (i << 2)); \
+}
+
+#define NFC_SET_NFC_ACTIVE_CS(val) \
+	raw_write((raw_read(NFC_CONFIG1) & \
+	(NFC_FIELD_RESET(NFC_ACTIVE_CS_WIDTH, NFC_ACTIVE_CS_SHIFT))) | \
+	((val) << NFC_ACTIVE_CS_SHIFT), NFC_CONFIG1);
+
+#define NFC_GET_MAXCHIP_SP()		8
+
+#define NFC_SET_BLS(val) ((raw_read(REG_NFC_BLS) & NFC_BLS_RESET) | val)
+#define NFC_SET_WPC(val) ((raw_read(REG_NFC_WPC) & NFC_WPC_RESET) | val)
+#define CHECK_NFC_RB    (raw_read(REG_NFC_RB) & NFC_RB)
+
+#define NFC_SET_NFC_NUM_ADDR_PHASE1(val) \
+	raw_write((raw_read(NFC_CONFIG2) & \
+	(NFC_FIELD_RESET(NFC_NUM_ADDR_PHASE1_WIDTH, \
+	NFC_NUM_ADDR_PHASE1_SHIFT))) | \
+	((val) << NFC_NUM_ADDR_PHASE1_SHIFT), NFC_CONFIG2);
+
+#define NFC_SET_NFC_NUM_ADDR_PHASE0(val) \
+	raw_write((raw_read(NFC_CONFIG2) & \
+	(NFC_FIELD_RESET(NFC_NUM_ADDR_PHASE0_WIDTH, \
+	NFC_NUM_ADDR_PHASE0_SHIFT))) | \
+	((val) << NFC_NUM_ADDR_PHASE0_SHIFT), NFC_CONFIG2);
+
+#define NFC_SET_NFC_ITERATION(val) \
+	raw_write((raw_read(NFC_CONFIG1) & \
+	(NFC_FIELD_RESET(NFC_ITERATION_WIDTH, NFC_ITERATION_SHIFT))) | \
+	((val) << NFC_ITERATION_SHIFT), NFC_CONFIG1);
+
+#define NFC_SET_FW(val) \
+	raw_write((raw_read(NFC_CONFIG3) & \
+	(NFC_FIELD_RESET(NFC_FW_WIDTH, NFC_FW_SHIFT))) | \
+	((val) << NFC_FW_SHIFT), NFC_CONFIG3);
+
+#define NFC_SET_NUM_OF_DEVICE(val) \
+	raw_write((raw_read(NFC_CONFIG3) & \
+	(NFC_FIELD_RESET(NFC_NUM_OF_DEVICES_WIDTH, \
+	NFC_NUM_OF_DEVICES_SHIFT))) | \
+	((val) << NFC_NUM_OF_DEVICES_SHIFT), NFC_CONFIG3);
+
+#define NFC_SET_ADD_OP_MODE(val) \
+	 raw_write((raw_read(NFC_CONFIG3) & \
+	(NFC_FIELD_RESET(NFC_ADD_OP_WIDTH, NFC_ADD_OP_SHIFT))) | \
+	((val) << NFC_ADD_OP_SHIFT), NFC_CONFIG3);
+
+#define NFC_SET_ADD_CS_MODE(val) \
+{ \
+	NFC_SET_ADD_OP_MODE(val); \
+	NFC_SET_NUM_OF_DEVICE(this->numchips - 1); \
+}
+
+#define NFC_SET_ST_CMD(val) \
+	raw_write((raw_read(NFC_CONFIG2) & \
+	(NFC_FIELD_RESET(NFC_ST_CMD_WIDTH, \
+	NFC_ST_CMD_SHITF))) | \
+	((val) << NFC_ST_CMD_SHITF), NFC_CONFIG2);
+
+#define NFMS_NF_DWIDTH 0
+#define NFMS_NF_PG_SZ  1
+#define NFC_CMD_1_SHIFT 8
+
+#define NUM_OF_ADDR_CYCLE ((ffs(~(info->page_mask)) - 1) >> 3)
+
+/*should set the fw,ps,spas,ppb*/
+#define NFC_SET_NFMS(v)	\
+do {	\
+	if (!(v)) \
+		NFC_SET_FW(NFC_FW_8);   \
+	if (((v) & (1 << NFMS_NF_DWIDTH)))	\
+		NFC_SET_FW(NFC_FW_16);	\
+	if (((v) & (1 << NFMS_NF_PG_SZ))) {	\
+		if (IS_2K_PAGE_NAND) {	\
+			NFC_SET_PS(NFC_PS_2K);	\
+			NFC_SET_NFC_NUM_ADDR_PHASE1(NUM_OF_ADDR_CYCLE); \
+			NFC_SET_NFC_NUM_ADDR_PHASE0(NFC_TWO_LESS_PHASE1); \
+		} else if (IS_4K_PAGE_NAND) {       \
+			NFC_SET_PS(NFC_PS_4K);	\
+			NFC_SET_NFC_NUM_ADDR_PHASE1(NUM_OF_ADDR_CYCLE); \
+			NFC_SET_NFC_NUM_ADDR_PHASE0(NFC_TWO_LESS_PHASE1); \
+		} else {	\
+			NFC_SET_PS(NFC_PS_512);	\
+			NFC_SET_NFC_NUM_ADDR_PHASE1(NUM_OF_ADDR_CYCLE - 1); \
+			NFC_SET_NFC_NUM_ADDR_PHASE0(NFC_ONE_LESS_PHASE1); \
+		}	\
+		NFC_SET_ADD_CS_MODE(1); \
+		NFC_SET_SPAS(GET_NAND_OOB_SIZE >> 1);	\
+		NFC_SET_ECC_MODE(GET_NAND_OOB_SIZE >> 1); \
+		NFC_SET_ST_CMD(0x70); \
+		raw_write(raw_read(NFC_CONFIG3) | NFC_NO_SDMA, NFC_CONFIG3); \
+		raw_write(raw_read(NFC_CONFIG3) | NFC_RBB_MODE, NFC_CONFIG3); \
+	} \
+} while (0)
+
+#define READ_PAGE()	send_read_page(0)
+#define PROG_PAGE()	send_prog_page(0)
+
+#endif				/* __MXC_NAND_H__ */
diff --git a/include/configs/mx53_ard.h b/include/configs/mx53_ard.h
index 17a1ba3..dfff7ad 100644
--- a/include/configs/mx53_ard.h
+++ b/include/configs/mx53_ard.h
@@ -93,6 +93,16 @@
 #define CONFIG_BOOTP_SUBNETMASK
 #define CONFIG_BOOTP_GATEWAY
 #define CONFIG_BOOTP_DNS
+
+/* Enable below configure when supporting nand */
+#define CONFIG_CMD_NAND
+#define CONFIG_MXC_NAND
+/* NAND FLASH driver setup */
+#define NAND_MAX_CHIPS         8
+#define CONFIG_SYS_MAX_NAND_DEVICE    1
+#define CONFIG_SYS_NAND_BASE          0x40000000
+#define CONFIG_NAND_FW_16BIT    0 /* 1: 16bit 0: 8bit */
+
 #define CONFIG_CMD_IIM
 #define CONFIG_CMD_MMC
 #define CONFIG_CMD_ENV
diff --git a/include/configs/mx53_evk.h b/include/configs/mx53_evk.h
index da0ac7f..8b9a1df 100644
--- a/include/configs/mx53_evk.h
+++ b/include/configs/mx53_evk.h
@@ -93,6 +93,16 @@
 #define CONFIG_BOOTP_SUBNETMASK
 #define CONFIG_BOOTP_GATEWAY
 #define CONFIG_BOOTP_DNS
+
+/* Enable below configure when supporting nand */
+#define CONFIG_CMD_NAND
+#define CONFIG_MXC_NAND
+/* NAND FLASH driver setup */
+#define NAND_MAX_CHIPS         8
+#define CONFIG_SYS_MAX_NAND_DEVICE    1
+#define CONFIG_SYS_NAND_BASE          0x40000000
+#define CONFIG_NAND_FW_16BIT    0 /* 1: 16bit 0: 8bit */
+
 #define CONFIG_CMD_IIM
 #define CONFIG_CMD_MMC
 #define CONFIG_CMD_ENV
diff --git a/include/configs/mx53_evk_android.h b/include/configs/mx53_evk_android.h
index d97a186..1dc2818 100644
--- a/include/configs/mx53_evk_android.h
+++ b/include/configs/mx53_evk_android.h
@@ -110,6 +110,16 @@
 #define CONFIG_BOOTP_SUBNETMASK
 #define CONFIG_BOOTP_GATEWAY
 #define CONFIG_BOOTP_DNS
+
+/* Enable below configure when supporting nand */
+#define CONFIG_CMD_NAND
+#define CONFIG_MXC_NAND
+/* NAND FLASH driver setup */
+#define NAND_MAX_CHIPS         8
+#define CONFIG_SYS_MAX_NAND_DEVICE    1
+#define CONFIG_SYS_NAND_BASE          0x40000000
+#define CONFIG_NAND_FW_16BIT    0 /* 1: 16bit 0: 8bit */
+
 #define CONFIG_CMD_IIM
 #define CONFIG_CMD_MMC
 #define CONFIG_CMD_ENV