RT75957. kinetis nand: import an existing NAND driver

Import the existing NAND Flash Controller driver for MCF5441x from
http://repository.timesys.com/buildsources/u/u-boot/u-boot-2009.08/u-boot-2009.08-mfc5441x.patch

The NAND Flash Controllers on MCF5441x and Kinetis are compatible, we
will use this driver for Kinetis.

drivers/mtd/nand/Makefile

@@ -50,6 +50,7 @@ COBJS-$(CONFIG_NAND_S3C64XX) += s3c64xx.o
 COBJS-$(CONFIG_NAND_SPEAR) += spr_nand.o
 COBJS-$(CONFIG_NAND_OMAP_GPMC) += omap_gpmc.o
 COBJS-$(CONFIG_NAND_PLAT) += nand_plat.o
+COBJS-$(CONFIG_NAND_FSL_NFC) += fsl_nfc.o
 endif
 
 COBJS	:= $(COBJS-y)

include/mtd/fsl_nfc.h

+/*
+ * Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Shaohui Xie <b21989@freescale.com>
+ *
+ * Description:
+ * MPC5125/M54418TWR Nand driver.
+ *
+ * This 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.
+ */
+
+#ifndef MPC5125_NFC_H
+#define MPC5125_NFC_H
+
+
+/* NFC PAD Define */
+#define PAD_NFC_IO                	PAD_FUNC0
+#define PAD_NFC_ALE               	PAD_FUNC0
+#define PAD_NFC_CLE               	PAD_FUNC0
+#define PAD_NFC_WE                	PAD_FUNC0
+#define PAD_NFC_RE                	PAD_FUNC0
+#define PAD_NFC_CE0               	PAD_FUNC0
+#define PAD_NFC_CE1               	PAD_FUNC1
+#define PAD_NFC_CE2               	PAD_FUNC2
+#define PAD_NFC_CE3               	PAD_FUNC2
+#define PAD_NFC_RB0               	PAD_FUNC0
+#define PAD_NFC_RB1               	PAD_FUNC2
+#define PAD_NFC_RB2               	PAD_FUNC2
+#define PAD_NFC_RB3               	PAD_FUNC2
+
+/* NFC Control PAD Define */
+#define BALL_NFC_CE0			IOCTL_NFC_CE0_B
+#define BALL_NFC_CE1			IOCTL_SDHC1_CLK
+#define BALL_NFC_CE2			IOCTL_PSC1_4
+#define BALL_NFC_CE3			IOCTL_J1850_TX
+#define BALL_NFC_RB0			IOCTL_NFC_RB
+#define BALL_NFC_RB1			IOCTL_FEC1_TXD_0
+#define BALL_NFC_RB2			IOCTL_PSC1_3
+#define BALL_NFC_RB3			IOCTL_J1850_RX
+#define BALL_NFC_ALE			IOCTL_EMB_AD19
+#define BALL_NFC_CLE			IOCTL_EMB_AD18
+#define BALL_NFC_WE			IOCTL_EMB_AD16
+#define BALL_NFC_RE			IOCTL_EMB_AD17
+
+/* NFC IO Pad Define */
+#define BALL_NFC_IO0			IOCTL_EMB_AD00
+#define BALL_NFC_IO1			IOCTL_EMB_AD01
+#define BALL_NFC_IO2			IOCTL_EMB_AD02
+#define BALL_NFC_IO3			IOCTL_EMB_AD03
+#define BALL_NFC_IO4			IOCTL_EMB_AD04
+#define BALL_NFC_IO5			IOCTL_EMB_AD05
+#define BALL_NFC_IO6			IOCTL_EMB_AD06
+#define BALL_NFC_IO7			IOCTL_EMB_AD07
+
+/* Addresses for NFC MAIN RAM BUFFER areas */
+#define NFC_MAIN_AREA(n)		((n) *  0x1000)
+
+/* Addresses for NFC SPARE BUFFER areas */
+#define NFC_SPARE_BUFFERS		8
+#define NFC_SPARE_LEN			0x10
+#define NFC_SPARE_AREA(n)		(0x800 + ((n) * NFC_SPARE_LEN))
+
+#define PAGE_2K                   	0x0800
+#define PAGE_64                   	0x0040
+
+/* MPC5125 NFC registers */
+/* Typical Flash Commands */
+#define READ_PAGE_CMD_CODE		0x7EE0
+#define PROGRAM_PAGE_CMD_CODE		0x7FC0
+#define ERASE_CMD_CODE			0x4EC0
+#define READ_ID_CMD_CODE		0x4804
+#define RESET_CMD_CODE			0x4040
+#define DMA_PROGRAM_PAGE_CMD_CODE	0xFFC8
+#define RANDOM_IN_CMD_CODE		0x7140
+#define RANDOM_OUT_CMD_CODE		0x70E0
+#define STATUS_READ_CMD_CODE		0x4068
+
+#define PAGE_READ_CMD_BYTE1		0x00
+#define PAGE_READ_CMD_BYTE2		0x30
+#define PROGRAM_PAGE_CMD_BYTE1		0x80
+#define PROGRAM_PAGE_CMD_BYTE2		0x10
+#define READ_STATUS_CMD_BYTE		0x70
+#define ERASE_CMD_BYTE1			0x60
+#define ERASE_CMD_BYTE2			0xD0
+#define READ_ID_CMD_BYTE		0x90
+#define RESET_CMD_BYTE			0xFF
+#define RANDOM_OUT_CMD_BYTE1		0x05
+#define RANDOM_OUT_CMD_BYTE2		0xE0
+
+/* NFC ECC mode define */
+#define ECC_BYPASS			0x0
+#define ECC_8_BYTE			0x1
+#define ECC_12_BYTE			0x2
+#define ECC_15_BYTE			0x3
+#define ECC_23_BYTE			0x4
+#define ECC_30_BYTE			0x5
+#define ECC_45_BYTE			0x6
+#define ECC_60_BYTE			0x7
+#define ECC_ERROR			1
+#define ECC_RIGHT			0
+
+/***************** Module-Relative Register Offsets *************************/
+#define NFC_SRAM_BUFFER			0x0000
+#define NFC_FLASH_CMD1 			0x3F00
+#define NFC_FLASH_CMD2			0x3F04
+#define NFC_COL_ADDR			0x3F08
+#define NFC_ROW_ADDR			0x3F0c
+#define NFC_FLASH_COMMAND_REPEAT	0x3F10
+#define NFC_ROW_ADDR_INC		0x3F14
+#define NFC_FLASH_STATUS1		0x3F18
+#define NFC_FLASH_STATUS2		0x3F1c
+#define NFC_DMA1_ADDR			0x3F20
+#define NFC_DMA2_ADDR			0x3F34
+#define NFC_DMA_CONFIG			0x3F24
+#define NFC_CACHE_SWAP			0x3F28
+#define NFC_SECTOR_SIZE			0x3F2c
+#define NFC_FLASH_CONFIG		0x3F30
+#define NFC_IRQ_STATUS			0x3F38
+
+/***************** Module-Relative Register Reset Value *********************/
+#define NFC_SRAM_BUFFER_RSTVAL                	0x00000000
+#define NFC_FLASH_CMD1_RSTVAL 			0x30FF0000
+#define NFC_FLASH_CMD2_RSTVAL			0x007EE000
+#define NFC_COL_ADDR_RSTVAL			0x00000000
+#define NFC_ROW_ADDR_RSTVAL			0x11000000
+#define NFC_FLASH_COMMAND_REPEAT_RSTVAL		0x00000000
+#define NFC_ROW_ADDR_INC_RSTVAL			0x00000001
+#define NFC_FLASH_STATUS1_RSTVAL		0x00000000
+#define NFC_FLASH_STATUS2_RSTVAL		0x00000000
+#define NFC_DMA1_ADDR_RSTVAL			0x00000000
+#define NFC_DMA2_ADDR_RSTVAL			0x00000000
+#define NFC_DMA_CONFIG_RSTVAL			0x00000000
+#define NFC_CACHE_SWAP_RSTVAL			0x0FFE0FFE
+#define NFC_SECTOR_SIZE_RSTVAL			0x00000420
+#define NFC_FLASH_CONFIG_RSTVAL			0x000EA631
+#define NFC_IRQ_STATUS_RSTVAL			0x04000000
+
+/***************** Module-Relative Register Mask *************************/
+
+/* NFC_FLASH_CMD1 Field */
+#define CMD1_MASK				0xFFFF0000
+#define CMD1_SHIFT				0
+#define CMD_BYTE2_MASK    			0xFF000000
+#define CMD_BYTE2_SHIFT   			24
+#define CMD_BYTE3_MASK    			0x00FF0000
+#define CMD_BYTE3_SHIFT   			16
+
+/* NFC_FLASH_CM2 Field */
+#define CMD2_MASK				0xFFFFFF07
+#define CMD2_SHIFT				0
+#define CMD_BYTE1_MASK			    	0xFF000000
+#define CMD_BYTE1_SHIFT   			24
+#define CMD_CODE_MASK				0x00FFFF00
+#define CMD_CODE_SHIFT				8
+#define BUFNO_MASK				0x00000006
+#define BUFNO_SHIFT				1
+#define BUSY_MASK				0x00000001
+#define BUSY_SHIFT				0
+#define START_MASK				0x00000001
+#define START_SHIFT				0
+
+/* NFC_COL_ADDR Field */
+#define COL_ADDR_MASK				0x0000FFFF
+#define COL_ADDR_SHIFT				0
+#define COL_ADDR_COL_ADDR2_MASK			0x0000FF00
+#define COL_ADDR_COL_ADDR2_SHIFT		8
+#define COL_ADDR_COL_ADDR1_MASK			0x000000FF
+#define COL_ADDR_COL_ADDR1_SHIFT		0
+
+/* NFC_ROW_ADDR Field */
+#define ROW_ADDR_MASK				0x00FFFFFF
+#define ROW_ADDR_SHIFT				0
+#define ROW_ADDR_CHIP_SEL_RB_MASK		0xF0000000
+#define ROW_ADDR_CHIP_SEL_RB_SHIFT		28
+#define ROW_ADDR_CHIP_SEL_MASK			0x0F000000
+#define ROW_ADDR_CHIP_SEL_SHIFT			24
+#define ROW_ADDR_ROW_ADDR3_MASK			0x00FF0000
+#define ROW_ADDR_ROW_ADDR3_SHIFT		16
+#define ROW_ADDR_ROW_ADDR2_MASK			0x0000FF00
+#define ROW_ADDR_ROW_ADDR2_SHIFT		8
+#define ROW_ADDR_ROW_ADDR1_MASK			0x000000FF
+#define ROW_ADDR_ROW_ADDR1_SHIFT		0
+
+/* NFC_FLASH_COMMAND_REPEAT Field */
+#define COMMAND_REPEAT_MASK			0x0000FFFF
+#define COMMAND_REPEAT_SHIFT			0
+#define COMMAND_REPEAT_REPEAT_COUNT_MASK	0x0000FFFF
+#define COMMAND_REPEAT_REPEAT_COUNT_SHIFT	0
+
+/* NFC_ROW_ADDR_INC Field */
+#define ROW_ADDR_INC_MASK			0x00FFFFFF
+#define ROW_ADDR_INC_SHIFT			0
+#define ROW_ADDR_INC_ROW_ADDR3_INC_MASK		0x00FF0000
+#define ROW_ADDR_INC_ROW_ADDR3_INC_SHIFT	16
+#define ROW_ADDR_INC_ROW_ADDR2_INC_MASK		0x0000FF00
+#define ROW_ADDR_INC_ROW_ADDR2_INC_SHIFT	8
+#define ROW_ADDR_INC_ROW_ADDR1_INC_MASK		0x000000FF
+#define ROW_ADDR_INC_ROW_ADDR1_INC_SHIFT	0
+
+/* NFC_FLASH_STATUS1 Field */
+#define STATUS1_MASK				0xFFFFFFFF
+#define STATUS1_SHIFT				0
+#define STATUS1_ID_BYTE1_MASK			0xFF000000
+#define STATUS1_ID_BYTE1_SHIFT			24
+#define STATUS1_ID_BYTE2_MASK			0x00FF0000
+#define STATUS1_ID_BYTE2_SHIFT			16
+#define STATUS1_ID_BYTE3_MASK			0x0000FF00
+#define STATUS1_ID_BYTE3_SHIFT			8
+#define STATUS1_ID_BYTE4_MASK			0x000000FF
+#define STATUS1_ID_BYTE4_SHIFT			0
+
+/* NFC_FLASH_STATUS2 Field */
+#define STATUS2_MASK				0xFF0000FF
+#define STATUS2_SHIFT				0
+#define STATUS2_ID_BYTE5_MASK			0xFF000000
+#define STATUS2_ID_BYTE5_SHIFT			24
+#define STATUS_BYTE1_MASK			0x000000FF
+#define STATUS2_STATUS_BYTE1_SHIFT		0
+
+/* NFC_DMA1_ADDR Field */
+#define DMA1_ADDR_MASK				0xFFFFFFFF
+#define DMA1_ADDR_SHIFT				0
+#define DMA1_ADDR_DMA1_ADDR_MASK		0xFFFFFFFF
+#define DMA1_ADDR_DMA1_ADDR_SHIFT		0
+
+/* DMA2_ADDR Field */
+#define DMA2_ADDR_MASK				0xFFFFFFFF
+#define DMA2_ADDR_SHIFT				0
+#define DMA2_ADDR_DMA2_ADDR_MASK		0xFFFFFFFF
+#define DMA2_ADDR_DMA2_ADDR_SHIFT		0
+
+/* DMA_CONFIG Field */
+#define DMA_CONFIG_MASK				0xFFFFFFFF
+#define DMA_CONFIG_SHIFT			0
+#define DMA_CONFIG_DMA1_CNT_MASK		0xFFF00000
+#define DMA_CONFIG_DMA1_CNT_SHIFT		20
+#define DMA_CONFIG_DMA2_CNT_MASK		0x000FE000
+#define DMA_CONFIG_DMA2_CNT_SHIFT		13
+#define DMA_CONFIG_DMA2_OFFSET_MASK		0x00001FC0
+#define DMA_CONFIG_DMA2_OFFSET_SHIFT		2
+#define DMA_CONFIG_DMA1_ACT_MASK		0x00000002
+#define DMA_CONFIG_DMA1_ACT_SHIFT		1
+#define DMA_CONFIG_DMA2_ACT_MASK		0x00000001
+#define DMA_CONFIG_DMA2_ACT_SHIFT		0
+
+/* NFC_CACHE_SWAP Field */
+#define CACHE_SWAP_MASK				0x0FFE0FFE
+#define CACHE_SWAP_SHIFT			1
+#define CACHE_SWAP_CACHE_SWAP_ADDR2_MASK	0x0FFE0000
+#define CACHE_SWAP_CACHE_SWAP_ADDR2_SHIFT	17
+#define CACHE_SWAP_CACHE_SWAP_ADDR1_MASK	0x00000FFE
+#define CACHE_SWAP_CACHE_SWAP_ADDR1_SHIFT	1
+
+/* NFC_SECTOR_SIZE Field */
+#define SECTOR_SIZE_MASK			0x00001FFF
+#define SECTOR_SIZE_SHIFT			0
+#define SECTOR_SIZE_SECTOR_SIZE_MASK		0x00001FFF
+#define SECTOR_SIZE_SECTOR_SIZE_SHIFT		0
+
+/* NFC_FLASH_CONFIG Field */
+#define CONFIG_MASK				0xFFFFFFFF
+#define CONFIG_SHIFT				0
+#define CONFIG_STOP_ON_WERR_MASK		0x80000000
+#define CONFIG_STOP_ON_WERR_SHIFT		31
+#define CONFIG_ECC_SRAM_ADDR_MASK		0x7FC00000
+#define CONFIG_ECC_SRAM_ADDR_SHIFT		22
+#define CONFIG_ECC_SRAM_REQ_MASK		0x00200000
+#define CONFIG_ECC_SRAM_REQ_SHIFT		21
+#define CONFIG_DMA_REQ_MASK			0x00100000
+#define CONFIG_DMA_REQ_SHIFT			20
+#define CONFIG_ECC_MODE_MASK			0x000E0000
+#define CONFIG_ECC_MODE_SHIFT			17
+#define CONFIG_FAST_FLASH_MASK			0x00010000
+#define CONFIG_FAST_FLASH_SHIFT			16
+#define CONFIG_ID_COUNT_MASK			0x0000E000
+#define CONFIG_ID_COUNT_SHIFT			13
+#define CONFIG_CMD_TIMEOUT_MASK			0x00001F00
+#define CONFIG_CMD_TIMEOUT_SHIFT		8
+#define CONFIG_16BIT_MASK			0x00000080
+#define CONFIG_16BIT_SHIFT			7
+#define CONFIG_BOOT_MODE_MASK			0x00000040
+#define CONFIG_BOOT_MODE_SHIFT			6
+#define CONFIG_ADDR_AUTO_INCR_MASK		0x00000020
+#define CONFIG_ADDR_AUTO_INCR_SHIFT		5
+#define CONFIG_BUFNO_AUTO_INCR_MASK		0x00000010
+#define CONFIG_BUFNO_AUTO_INCR_SHIFT		4
+#define CONFIG_PAGE_CNT_MASK			0x0000000F
+#define CONFIG_PAGE_CNT_SHIFT			0
+
+/* NFC_IRQ_STATUS Field */
+#define MASK					0xEFFC003F
+#define SHIFT					0
+#define WERR_IRQ_MASK				0x80000000
+#define WERR_IRQ_SHIFT				31
+#define CMD_DONE_IRQ_MASK			0x40000000
+#define CMD_DONE_IRQ_SHIFT			30
+#define IDLE_IRQ_MASK				0x20000000
+#define IDLE_IRQ_SHIFT				29
+#define WERR_STATUS_MASK			0x08000000
+#define WERR_STATUS_SHIFT			27
+#define FLASH_CMD_BUSY_MASK			0x04000000
+#define FLASH_CMD_BUSY_SHIFT			26
+#define RESIDUE_BUSY_MASK			0x02000000
+#define RESIDUE_BUSY_SHIFT			25
+#define ECC_BUSY_MASK				0x01000000
+#define ECC_BUSY_SHIFT				24
+#define DMA_BUSY_MASK				0x00800000
+#define DMA_BUSY_SHIFT				23
+#define WERR_EN_MASK				0x00400000
+#define WERR_EN_SHIFT				22
+#define CMD_DONE_EN_MASK			0x00200000
+#define CMD_DONE_EN_SHIFT			21
+#define IDLE_EN_MASK				0x00100000
+#define IDLE_EN_SHIFT				20
+#define WERR_CLEAR_MASK				0x00080000
+#define WERR_CLEAR_SHIFT			19
+#define CMD_DONE_CLEAR_MASK			0x00040000
+#define CMD_DONE_CLEAR_SHIFT			18
+#define IDLE_CLEAR_MASK				0x00020000
+#define IDLE_CLEAR_SHIFT			17
+#define RESIDUE_BUFF_NO_MASK			0x00000030
+#define RESIDUE_BUFF_NO_SHIFT			4
+#define ECC_BUFF_NO_MASK			0x000000C0
+#define ECC_BUFF_NO_SHIFT			2
+#define DMA_BUFF_NO_MASK			0x00000003
+
+#endif /* MPC5125_NFC_H */