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Add support for Samsung Flex-OneNAND devices. Flex-OneNAND combines SLC and MLC technologies into a single device. SLC area provides increased reliability and speed, suitable for storing code such as bootloader, kernel and root file system. MLC area provides high density and is suitable for storing user data. SLC and MLC regions can be configured through kernel parameter. [akpm@linux-foundation.org: export flexoand_region and onenand_addr] Signed-off-by: Rohit Hagargundgi <h.rohit@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Vishak G <vishak.g@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
218 lines
6.9 KiB
C
218 lines
6.9 KiB
C
/*
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* linux/include/linux/mtd/onenand_regs.h
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*
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* OneNAND Register header file
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*
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* Copyright (C) 2005-2007 Samsung Electronics
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* Kyungmin Park <kyungmin.park@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __ONENAND_REG_H
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#define __ONENAND_REG_H
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/* Memory Address Map Translation (Word order) */
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#define ONENAND_MEMORY_MAP(x) ((x) << 1)
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/*
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* External BufferRAM area
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*/
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#define ONENAND_BOOTRAM ONENAND_MEMORY_MAP(0x0000)
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#define ONENAND_DATARAM ONENAND_MEMORY_MAP(0x0200)
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#define ONENAND_SPARERAM ONENAND_MEMORY_MAP(0x8010)
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/*
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* OneNAND Registers
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*/
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#define ONENAND_REG_MANUFACTURER_ID ONENAND_MEMORY_MAP(0xF000)
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#define ONENAND_REG_DEVICE_ID ONENAND_MEMORY_MAP(0xF001)
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#define ONENAND_REG_VERSION_ID ONENAND_MEMORY_MAP(0xF002)
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#define ONENAND_REG_DATA_BUFFER_SIZE ONENAND_MEMORY_MAP(0xF003)
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#define ONENAND_REG_BOOT_BUFFER_SIZE ONENAND_MEMORY_MAP(0xF004)
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#define ONENAND_REG_NUM_BUFFERS ONENAND_MEMORY_MAP(0xF005)
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#define ONENAND_REG_TECHNOLOGY ONENAND_MEMORY_MAP(0xF006)
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#define ONENAND_REG_START_ADDRESS1 ONENAND_MEMORY_MAP(0xF100)
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#define ONENAND_REG_START_ADDRESS2 ONENAND_MEMORY_MAP(0xF101)
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#define ONENAND_REG_START_ADDRESS3 ONENAND_MEMORY_MAP(0xF102)
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#define ONENAND_REG_START_ADDRESS4 ONENAND_MEMORY_MAP(0xF103)
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#define ONENAND_REG_START_ADDRESS5 ONENAND_MEMORY_MAP(0xF104)
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#define ONENAND_REG_START_ADDRESS6 ONENAND_MEMORY_MAP(0xF105)
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#define ONENAND_REG_START_ADDRESS7 ONENAND_MEMORY_MAP(0xF106)
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#define ONENAND_REG_START_ADDRESS8 ONENAND_MEMORY_MAP(0xF107)
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#define ONENAND_REG_START_BUFFER ONENAND_MEMORY_MAP(0xF200)
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#define ONENAND_REG_COMMAND ONENAND_MEMORY_MAP(0xF220)
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#define ONENAND_REG_SYS_CFG1 ONENAND_MEMORY_MAP(0xF221)
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#define ONENAND_REG_SYS_CFG2 ONENAND_MEMORY_MAP(0xF222)
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#define ONENAND_REG_CTRL_STATUS ONENAND_MEMORY_MAP(0xF240)
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#define ONENAND_REG_INTERRUPT ONENAND_MEMORY_MAP(0xF241)
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#define ONENAND_REG_START_BLOCK_ADDRESS ONENAND_MEMORY_MAP(0xF24C)
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#define ONENAND_REG_END_BLOCK_ADDRESS ONENAND_MEMORY_MAP(0xF24D)
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#define ONENAND_REG_WP_STATUS ONENAND_MEMORY_MAP(0xF24E)
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#define ONENAND_REG_ECC_STATUS ONENAND_MEMORY_MAP(0xFF00)
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#define ONENAND_REG_ECC_M0 ONENAND_MEMORY_MAP(0xFF01)
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#define ONENAND_REG_ECC_S0 ONENAND_MEMORY_MAP(0xFF02)
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#define ONENAND_REG_ECC_M1 ONENAND_MEMORY_MAP(0xFF03)
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#define ONENAND_REG_ECC_S1 ONENAND_MEMORY_MAP(0xFF04)
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#define ONENAND_REG_ECC_M2 ONENAND_MEMORY_MAP(0xFF05)
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#define ONENAND_REG_ECC_S2 ONENAND_MEMORY_MAP(0xFF06)
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#define ONENAND_REG_ECC_M3 ONENAND_MEMORY_MAP(0xFF07)
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#define ONENAND_REG_ECC_S3 ONENAND_MEMORY_MAP(0xFF08)
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/*
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* Device ID Register F001h (R)
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*/
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#define DEVICE_IS_FLEXONENAND (1 << 9)
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#define FLEXONENAND_PI_MASK (0x3ff)
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#define FLEXONENAND_PI_UNLOCK_SHIFT (14)
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#define ONENAND_DEVICE_DENSITY_MASK (0xf)
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#define ONENAND_DEVICE_DENSITY_SHIFT (4)
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#define ONENAND_DEVICE_IS_DDP (1 << 3)
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#define ONENAND_DEVICE_IS_DEMUX (1 << 2)
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#define ONENAND_DEVICE_VCC_MASK (0x3)
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#define ONENAND_DEVICE_DENSITY_512Mb (0x002)
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#define ONENAND_DEVICE_DENSITY_1Gb (0x003)
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#define ONENAND_DEVICE_DENSITY_2Gb (0x004)
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#define ONENAND_DEVICE_DENSITY_4Gb (0x005)
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/*
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* Version ID Register F002h (R)
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*/
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#define ONENAND_VERSION_PROCESS_SHIFT (8)
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/*
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* Technology Register F006h (R)
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*/
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#define ONENAND_TECHNOLOGY_IS_MLC (1 << 0)
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/*
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* Start Address 1 F100h (R/W) & Start Address 2 F101h (R/W)
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*/
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#define ONENAND_DDP_SHIFT (15)
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#define ONENAND_DDP_CHIP0 (0)
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#define ONENAND_DDP_CHIP1 (1 << ONENAND_DDP_SHIFT)
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/*
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* Start Address 8 F107h (R/W)
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*/
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/* Note: It's actually 0x3f in case of SLC */
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#define ONENAND_FPA_MASK (0x7f)
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#define ONENAND_FPA_SHIFT (2)
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#define ONENAND_FSA_MASK (0x03)
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/*
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* Start Buffer Register F200h (R/W)
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*/
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#define ONENAND_BSA_MASK (0x03)
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#define ONENAND_BSA_SHIFT (8)
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#define ONENAND_BSA_BOOTRAM (0 << 2)
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#define ONENAND_BSA_DATARAM0 (2 << 2)
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#define ONENAND_BSA_DATARAM1 (3 << 2)
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/* Note: It's actually 0x03 in case of SLC */
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#define ONENAND_BSC_MASK (0x07)
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/*
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* Command Register F220h (R/W)
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*/
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#define ONENAND_CMD_READ (0x00)
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#define ONENAND_CMD_READOOB (0x13)
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#define ONENAND_CMD_PROG (0x80)
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#define ONENAND_CMD_PROGOOB (0x1A)
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#define ONENAND_CMD_2X_PROG (0x7D)
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#define ONENAND_CMD_2X_CACHE_PROG (0x7F)
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#define ONENAND_CMD_UNLOCK (0x23)
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#define ONENAND_CMD_LOCK (0x2A)
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#define ONENAND_CMD_LOCK_TIGHT (0x2C)
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#define ONENAND_CMD_UNLOCK_ALL (0x27)
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#define ONENAND_CMD_ERASE (0x94)
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#define ONENAND_CMD_RESET (0xF0)
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#define ONENAND_CMD_OTP_ACCESS (0x65)
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#define ONENAND_CMD_READID (0x90)
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#define FLEXONENAND_CMD_PI_UPDATE (0x05)
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#define FLEXONENAND_CMD_PI_ACCESS (0x66)
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#define FLEXONENAND_CMD_RECOVER_LSB (0x05)
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/* NOTE: Those are not *REAL* commands */
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#define ONENAND_CMD_BUFFERRAM (0x1978)
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#define FLEXONENAND_CMD_READ_PI (0x1985)
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/*
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* System Configuration 1 Register F221h (R, R/W)
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*/
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#define ONENAND_SYS_CFG1_SYNC_READ (1 << 15)
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#define ONENAND_SYS_CFG1_BRL_7 (7 << 12)
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#define ONENAND_SYS_CFG1_BRL_6 (6 << 12)
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#define ONENAND_SYS_CFG1_BRL_5 (5 << 12)
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#define ONENAND_SYS_CFG1_BRL_4 (4 << 12)
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#define ONENAND_SYS_CFG1_BRL_3 (3 << 12)
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#define ONENAND_SYS_CFG1_BRL_10 (2 << 12)
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#define ONENAND_SYS_CFG1_BRL_9 (1 << 12)
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#define ONENAND_SYS_CFG1_BRL_8 (0 << 12)
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#define ONENAND_SYS_CFG1_BRL_SHIFT (12)
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#define ONENAND_SYS_CFG1_BL_32 (4 << 9)
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#define ONENAND_SYS_CFG1_BL_16 (3 << 9)
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#define ONENAND_SYS_CFG1_BL_8 (2 << 9)
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#define ONENAND_SYS_CFG1_BL_4 (1 << 9)
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#define ONENAND_SYS_CFG1_BL_CONT (0 << 9)
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#define ONENAND_SYS_CFG1_BL_SHIFT (9)
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#define ONENAND_SYS_CFG1_NO_ECC (1 << 8)
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#define ONENAND_SYS_CFG1_RDY (1 << 7)
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#define ONENAND_SYS_CFG1_INT (1 << 6)
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#define ONENAND_SYS_CFG1_IOBE (1 << 5)
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#define ONENAND_SYS_CFG1_RDY_CONF (1 << 4)
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#define ONENAND_SYS_CFG1_HF (1 << 2)
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#define ONENAND_SYS_CFG1_SYNC_WRITE (1 << 1)
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/*
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* Controller Status Register F240h (R)
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*/
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#define ONENAND_CTRL_ONGO (1 << 15)
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#define ONENAND_CTRL_LOCK (1 << 14)
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#define ONENAND_CTRL_LOAD (1 << 13)
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#define ONENAND_CTRL_PROGRAM (1 << 12)
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#define ONENAND_CTRL_ERASE (1 << 11)
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#define ONENAND_CTRL_ERROR (1 << 10)
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#define ONENAND_CTRL_RSTB (1 << 7)
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#define ONENAND_CTRL_OTP_L (1 << 6)
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#define ONENAND_CTRL_OTP_BL (1 << 5)
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/*
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* Interrupt Status Register F241h (R)
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*/
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#define ONENAND_INT_MASTER (1 << 15)
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#define ONENAND_INT_READ (1 << 7)
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#define ONENAND_INT_WRITE (1 << 6)
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#define ONENAND_INT_ERASE (1 << 5)
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#define ONENAND_INT_RESET (1 << 4)
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#define ONENAND_INT_CLEAR (0 << 0)
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/*
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* NAND Flash Write Protection Status Register F24Eh (R)
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*/
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#define ONENAND_WP_US (1 << 2)
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#define ONENAND_WP_LS (1 << 1)
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#define ONENAND_WP_LTS (1 << 0)
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/*
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* ECC Status Reigser FF00h (R)
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*/
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#define ONENAND_ECC_1BIT (1 << 0)
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#define ONENAND_ECC_1BIT_ALL (0x5555)
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#define ONENAND_ECC_2BIT (1 << 1)
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#define ONENAND_ECC_2BIT_ALL (0xAAAA)
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#define FLEXONENAND_UNCORRECTABLE_ERROR (0x1010)
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/*
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* One-Time Programmable (OTP)
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*/
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#define FLEXONENAND_OTP_LOCK_OFFSET (2048)
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#define ONENAND_OTP_LOCK_OFFSET (14)
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#endif /* __ONENAND_REG_H */
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