new file mode 100644
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+/*
+ * drivers/mtd/nand/stm_nand_regs.h
+ *
+ * STMicroelectronics NAND Controller register definitions
+ *
+ * Copyright (c) 2008-2014 STMicroelectronics Limited
+ * Author: Angus Clark <Angus.Clark@st.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#ifndef STM_NANDC_REGS_H
+#define STM_NANDC_REGS_H
+
+/* Hamming Controller Registers (Offsets from EMINAND_BASE) */
+#define NANDHAM_BOOTBANK_CFG 0x000
+#define NANDHAM_RBN_STA 0x004
+#define NANDHAM_INT_EN 0x010
+#define NANDHAM_INT_STA 0x014
+#define NANDHAM_INT_CLR 0x018
+#define NANDHAM_INT_EDGE_CFG 0x01C
+#define NANDHAM_CTL_TIMING 0x040
+#define NANDHAM_WEN_TIMING 0x044
+#define NANDHAM_REN_TIMING 0x048
+#define NANDHAM_BLOCK_ZERO_REMAP_REG 0x04C
+#define NANDHAM_FLEXMODE_CFG 0x100
+#define NANDHAM_FLEX_MUXCTRL 0x104
+#define NANDHAM_FLEX_DATAWRITE_CONFIG 0x10C
+#define NANDHAM_FLEX_DATAREAD_CONFIG 0x110
+#define NANDHAM_FLEX_CMD 0x114
+#define NANDHAM_FLEX_ADD 0x118
+#define NANDHAM_FLEX_DATA 0x120
+#define NANDHAM_VERSION_REG 0x144
+#define NANDHAM_MULTI_CS_CONFIG_REG 0x1EC
+#define NANDHAM_AFM_SEQ_REG_1 0x200
+#define NANDHAM_AFM_SEQ_REG_2 0x204
+#define NANDHAM_AFM_SEQ_REG_3 0x208
+#define NANDHAM_AFM_SEQ_REG_4 0x20C
+#define NANDHAM_AFM_ADD 0x210
+#define NANDHAM_AFM_EXTRA 0x214
+#define NANDHAM_AFM_CMD 0x218
+#define NANDHAM_AFM_SEQ_CFG 0x21C
+#define NANDHAM_AFM_GEN_CFG 0x220
+#define NANDHAM_AFM_SEQ_STA 0x240
+#define NANDHAM_AFM_ECC_REG_0 0x280
+#define NANDHAM_AFM_ECC_REG_1 0x284
+#define NANDHAM_AFM_ECC_REG_2 0x288
+#define NANDHAM_AFM_ECC_REG_3 0x28C
+#define NANDHAM_AFM_DATA_FIFO 0x300
+
+/* BCH Controller Registers (Offsets from EMI_NAND) */
+#define NANDBCH_BOOTBANK_CFG 0x000
+#define NANDBCH_RBN_STA 0x004
+#define NANDBCH_INT_EN 0x010
+#define NANDBCH_INT_STA 0x014
+#define NANDBCH_INT_CLR 0x018
+#define NANDBCH_INT_EDGE_CFG 0x01C
+#define NANDBCH_CTL_TIMING 0x040
+#define NANDBCH_WEN_TIMING 0x044
+#define NANDBCH_REN_TIMING 0x048
+#define NANDBCH_BLOCK_ZERO_REMAP_REG 0x04C
+#define NANDBCH_BOOT_STATUS 0x050
+#define NANDBCH_FALSE_BOOT_REG 0x054
+#define NANDBCH_FALSE_BOOT_STATUS 0x058
+#define NANDBCH_CONTROLLER_CFG 0x100
+#define NANDBCH_FLEX_MUXCTRL 0x104
+#define NANDBCH_FLEX_DATAWRITE_CONFIG 0x10C
+#define NANDBCH_FLEX_DATAREAD_CONFIG 0x110
+#define NANDBCH_VERSION_REG 0x144
+#define NANDBCH_ADDRESS_REG_1 0x1F0
+#define NANDBCH_ADDRESS_REG_2 0x1F4
+#define NANDBCH_ADDRESS_REG_3 0x1F8
+#define NANDBCH_MULTI_CS_CONFIG_REG 0x1FC
+#define NANDBCH_SEQ_REG_1 0x200
+#define NANDBCH_SEQ_REG_2 0x204
+#define NANDBCH_SEQ_REG_3 0x208
+#define NANDBCH_SEQ_REG_4 0x20C
+#define NANDBCH_ADD 0x210
+#define NANDBCH_EXTRA_REG 0x214
+#define NANDBCH_CMD 0x218
+#define NANDBCH_GEN_CFG 0x220
+#define NANDBCH_DELAY_REG 0x224
+#define NANDBCH_SEQ_CFG 0x22C
+#define NANDBCH_SEQ_STA 0x270
+#define NANDBCH_DATA_BUFFER_ENTRY_0 0x280
+#define NANDBCH_DATA_BUFFER_ENTRY_1 0x284
+#define NANDBCH_DATA_BUFFER_ENTRY_2 0x288
+#define NANDBCH_DATA_BUFFER_ENTRY_3 0x28C
+#define NANDBCH_DATA_BUFFER_ENTRY_4 0x290
+#define NANDBCH_DATA_BUFFER_ENTRY_5 0x294
+#define NANDBCH_DATA_BUFFER_ENTRY_6 0x298
+#define NANDBCH_DATA_BUFFER_ENTRY_7 0x29C
+#define NANDBCH_ECC_SCORE_REG_A 0x2A0
+#define NANDBCH_ECC_SCORE_REG_B 0x2A4
+#define NANDBCH_CHECK_STATUS_REG_A 0x2A8
+#define NANDBCH_CHECK_STATUS_REG_B 0x2AC
+#define NANDBCH_BUFFER_LIST_PTR 0x300
+#define NANDBCH_SEQ_PTR_REG 0x304
+#define NANDBCH_ERROR_THRESHOLD_REG 0x308
+
+/* EMISS NAND BCH STPLUG Registers (Offsets from EMISS_NAND_DMA) */
+#define EMISS_NAND_RD_DMA_PAGE_SIZE 0x000
+#define EMISS_NAND_RD_DMA_MAX_OPCODE_SIZE 0x004
+#define EMISS_NAND_RD_DMA_MIN_OPCODE_SIZE 0x008
+#define EMISS_NAND_RD_DMA_MAX_CHUNK_SIZE 0x00C
+#define EMISS_NAND_RD_DMA_MAX_MESSAGE_SIZE 0x010
+
+#define EMISS_NAND_WR_DMA_PAGE_SIZE 0x100
+#define EMISS_NAND_WR_DMA_MAX_OPCODE_SIZE 0x104
+#define EMISS_NAND_WR_DMA_MIN_OPCODE_SIZE 0x108
+#define EMISS_NAND_WR_DMA_MAX_CHUNK_SIZE 0x10C
+#define EMISS_NAND_WR_DMA_MAX_MESSAGE_SIZE 0x110
+
+
+/*
+ * Hamming/BCH controller interrupts
+ */
+
+/* NANDxxx_INT_EN/NANDxxx_INT_STA */
+/* Common */
+#define NAND_INT_ENABLE (0x1 << 0)
+#define NAND_INT_RBN (0x1 << 2)
+#define NAND_INT_SEQCHECK (0x1 << 5)
+/* Hamming only */
+#define NANDHAM_INT_DATA_DREQ (0x1 << 3)
+#define NANDHAM_INT_SEQ_DREQ (0x1 << 4)
+#define NANDHAM_INT_ECC_FIX_REQ (0x1 << 6)
+/* BCH only */
+#define NANDBCH_INT_SEQNODESOVER (0x1 << 7)
+#define NANDBCH_INT_ECCTHRESHOLD (0x1 << 8)
+
+/* NANDxxx_INT_CLR */
+/* Common */
+#define NAND_INT_CLR_RBN (0x1 << 2)
+#define NAND_INT_CLR_SEQCHECK (0x1 << 3)
+/* Hamming only */
+#define NANDHAM_INT_CLR_ECC_FIX_REQ (0x1 << 4)
+#define NANDHAM_INT_CLR_DATA_DREQ (0x1 << 5)
+#define NANDHAM_INT_CLR_SEQ_DREQ (0x1 << 6)
+/* BCH only */
+#define NANDBCH_INT_CLR_SEQNODESOVER (0x1 << 5)
+#define NANDBCH_INT_CLR_ECCTHRESHOLD (0x1 << 6)
+
+/* NANDxxx_INT_EDGE_CFG */
+#define NAND_EDGE_CFG_RBN_RISING 0x1
+#define NAND_EDGE_CFG_RBN_FALLING 0x2
+#define NAND_EDGE_CFG_RBN_ANY 0x3
+
+/* NANDBCH_CONTROLLER_CFG/NANDHAM_FLEXMODE_CFG */
+#define CFG_ENABLE_FLEX 0x1
+#define CFG_ENABLE_AFM 0x2
+#define CFG_RESET (0x1 << 3)
+#define CFG_RESET_ECC(x) (0x1 << (7 + (x)))
+#define CFG_RESET_ECC_ALL (0xff << 7)
+
+
+/*
+ * BCH Controller
+ */
+
+/* NANDBCH_BOOTBANK_CFG */
+#define BOOT_CFG_RESET (0x1 << 3)
+
+/* NANDBCH_CTL_TIMING */
+#define NANDBCH_CTL_SETUP(x) ((x) & 0xff)
+#define NANDBCH_CTL_HOLD(x) (((x) & 0xff) << 8)
+#define NANDBCH_CTL_WERBN(x) (((x) & 0xff) << 24)
+
+/* NANDBCH_WEN_TIMING */
+#define NANDBCH_WEN_ONTIME(x) ((x) & 0xff)
+#define NANDBCH_WEN_OFFTIME(x) (((x) & 0xff) << 8)
+#define NANDBCH_WEN_ONHALFCYCLE (0x1 << 16)
+#define NANDBCH_WEN_OFFHALFCYCLE (0x1 << 17)
+
+/* NANDBCH_REN_TIMING */
+#define NANDBCH_REN_ONTIME(x) ((x) & 0xff)
+#define NANDBCH_REN_OFFTIME(x) (((x) & 0xff) << 8)
+#define NANDBCH_REN_ONHALFCYCLE (0x1 << 16)
+#define NANDBCH_REN_OFFHALFCYCLE (0x1 << 17)
+#define NANDBCH_REN_TELQV(x) (((x) & 0xff) << 24)
+
+/* NANDBCH_BLOCK_ZERO_REMAP_REG */
+#define NANDBCH_BACKUP_COPY_FOUND (0x1 << 0)
+#define NANDBCH_ORIG_CODE_CORRUPTED (0x1 << 1)
+#define NANDBCH_BLK_ZERO_REMAP(x) ((x) >> 14)
+
+/* NANDBCH_BOOT_STATUS */
+#define NANDBCH_BOOT_MAX_ERRORS(x) ((x) & 0x1f)
+
+/* NANDBCH_GEN_CFG */
+#define GEN_CFG_DATA_8_NOT_16 (0x1 << 16)
+#define GEN_CFG_EXTRA_ADD_CYCLE (0x1 << 18)
+#define GEN_CFG_2X8_MODE (0x1 << 19)
+#define GEN_CFG_ECC_SHIFT 20
+#define GEN_CFG_18BIT_ECC (BCH_18BIT_ECC << \
+ GEN_CFG_ECC_SHIFT)
+#define GEN_CFG_30BIT_ECC (BCH_30BIT_ECC << \
+ GEN_CFG_ECC_SHIFT)
+#define GEN_CFG_NO_ECC (BCH_NO_ECC << \
+ GEN_CFG_ECC_SHIFT)
+#define GEN_CFG_LAST_SEQ_NODE (0x1 << 22)
+
+/* NANDBCH_SEQ_CFG */
+#define SEQ_CFG_REPEAT_COUNTER(x) ((x) & 0xffff)
+#define SEQ_CFG_SEQ_IDENT(x) (((x) & 0xff) << 16)
+#define SEQ_CFG_DATA_WRITE (0x1 << 24)
+#define SEQ_CFG_ERASE (0x1 << 25)
+#define SEQ_CFG_GO_STOP (0x1 << 26)
+
+/* NANDBCH_SEQ_STA */
+#define SEQ_STA_RUN (0x1 << 4)
+
+/*
+ * BCH Commands
+ */
+#define BCH_OPC_STOP 0x0
+#define BCH_OPC_CMD 0x1
+#define BCH_OPC_INC 0x2
+#define BCH_OPC_DEC_JUMP 0x3
+#define BCH_OPC_DATA 0x4
+#define BCH_OPC_DELAY 0x5
+#define BCH_OPC_CHECK 0x6
+#define BCH_OPC_ADDR 0x7
+#define BCH_OPC_NEXT_CHIP_ON 0x8
+#define BCH_OPC_DEC_JMP_MCS 0x9
+#define BCH_OPC_ECC_SCORE 0xA
+
+#define BCH_INSTR(opc, opr) ((opc) | ((opr) << 4))
+
+#define BCH_CMD_ADDR BCH_INSTR(BCH_OPC_CMD, 0)
+#define BCH_CL_CMD_1 BCH_INSTR(BCH_OPC_CMD, 1)
+#define BCH_CL_CMD_2 BCH_INSTR(BCH_OPC_CMD, 2)
+#define BCH_CL_CMD_3 BCH_INSTR(BCH_OPC_CMD, 3)
+#define BCH_CL_EX_0 BCH_INSTR(BCH_OPC_CMD, 4)
+#define BCH_CL_EX_1 BCH_INSTR(BCH_OPC_CMD, 5)
+#define BCH_CL_EX_2 BCH_INSTR(BCH_OPC_CMD, 6)
+#define BCH_CL_EX_3 BCH_INSTR(BCH_OPC_CMD, 7)
+#define BCH_INC(x) BCH_INSTR(BCH_OPC_INC, (x))
+#define BCH_DEC_JUMP(x) BCH_INSTR(BCH_OPC_DEC_JUMP, (x))
+#define BCH_STOP BCH_INSTR(BCH_OPC_STOP, 0)
+#define BCH_DATA_1_SECTOR BCH_INSTR(BCH_OPC_DATA, 0)
+#define BCH_DATA_2_SECTOR BCH_INSTR(BCH_OPC_DATA, 1)
+#define BCH_DATA_4_SECTOR BCH_INSTR(BCH_OPC_DATA, 2)
+#define BCH_DATA_8_SECTOR BCH_INSTR(BCH_OPC_DATA, 3)
+#define BCH_DATA_16_SECTOR BCH_INSTR(BCH_OPC_DATA, 4)
+#define BCH_DATA_32_SECTOR BCH_INSTR(BCH_OPC_DATA, 5)
+#define BCH_DELAY_0 BCH_INSTR(BCH_OPC_DELAY, 0)
+#define BCH_DELAY_1 BCH_INSTR(BCH_OPC_DELAY, 1)
+#define BCH_OP_ERR BCH_INSTR(BCH_OPC_CHECK, 0)
+#define BCH_CACHE_ERR BCH_INSTR(BCH_OPC_CHECK, 1)
+#define BCH_ERROR BCH_INSTR(BCH_OPC_CHECK, 2)
+#define BCH_AL_EX_0 BCH_INSTR(BCH_OPC_ADDR, 0)
+#define BCH_AL_EX_1 BCH_INSTR(BCH_OPC_ADDR, 1)
+#define BCH_AL_EX_2 BCH_INSTR(BCH_OPC_ADDR, 2)
+#define BCH_AL_EX_3 BCH_INSTR(BCH_OPC_ADDR, 3)
+#define BCH_AL_AD_0 BCH_INSTR(BCH_OPC_ADDR, 4)
+#define BCH_AL_AD_1 BCH_INSTR(BCH_OPC_ADDR, 5)
+#define BCH_AL_AD_2 BCH_INSTR(BCH_OPC_ADDR, 6)
+#define BCH_AL_AD_3 BCH_INSTR(BCH_OPC_ADDR, 7)
+#define BCH_NEXT_CHIP_ON BCH_INSTR(BCH_OPC_NEXT_CHIP_ON, 0)
+#define BCH_DEC_JMP_MCS(x) BCH_INSTR(BCH_OPC_DEC_JMP_MCS, (x))
+#define BCH_ECC_SCORE(x) BCH_INSTR(BCH_OPC_ECC_SCORE, (x))
+
+
+/*
+ * Hamming-FLEX register fields
+ */
+
+/* NANDHAM_FLEX_DATAREAD/WRITE_CONFIG */
+#define FLEX_DATA_CFG_WAIT_RBN (0x1 << 27)
+#define FLEX_DATA_CFG_BEATS_1 (0x1 << 28)
+#define FLEX_DATA_CFG_BEATS_2 (0x2 << 28)
+#define FLEX_DATA_CFG_BEATS_3 (0x3 << 28)
+#define FLEX_DATA_CFG_BEATS_4 (0x0 << 28)
+#define FLEX_DATA_CFG_BYTES_1 (0x0 << 30)
+#define FLEX_DATA_CFG_BYTES_2 (0x1 << 30)
+#define FLEX_DATA_CFG_CSN (0x1 << 31)
+
+/* NANDHAM_FLEX_CMD */
+#define FLEX_CMD_RBN (0x1 << 27)
+#define FLEX_CMD_BEATS_1 (0x1 << 28)
+#define FLEX_CMD_BEATS_2 (0x2 << 28)
+#define FLEX_CMD_BEATS_3 (0x3 << 28)
+#define FLEX_CMD_BEATS_4 (0x0 << 28)
+#define FLEX_CMD_CSN (0x1 << 31)
+#define FLEX_CMD(x) (((x) & 0xff) | \
+ FLEX_CMD_RBN | \
+ FLEX_CMD_BEATS_1 | \
+ FLEX_CMD_CSN)
+/* NANDHAM_FLEX_ADD */
+#define FLEX_ADDR_RBN (0x1 << 27)
+#define FLEX_ADDR_BEATS_1 (0x1 << 28)
+#define FLEX_ADDR_BEATS_2 (0x2 << 28)
+#define FLEX_ADDR_BEATS_3 (0x3 << 28)
+#define FLEX_ADDR_BEATS_4 (0x0 << 28)
+#define FLEX_ADDR_ADD8_VALID (0x1 << 30)
+#define FLEX_ADDR_CSN (0x1 << 31)
+
+#endif /* STM_NANDC_REGS_H */
Provide register and bit definitions used by STM's BCH Controller driver. We place these into a shared location as they will be used by other STM NAND Controllers as they appear. Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/mtd/nand/stm_nand_regs.h | 302 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 302 insertions(+) create mode 100644 drivers/mtd/nand/stm_nand_regs.h