[PATCH 02/10] mtd: st_spi_fsm: Supply all register address and bit logic defines
Lee Jones
lee.jones at linaro.org
Thu Nov 14 09:22:28 EST 2013
Here we provide the FSM's register addresses, register bit names/offsets
and some commands which will prove useful as we start bulk the FMS's
driver out with functionality.
Signed-off-by: Lee Jones <lee.jones at linaro.org>
---
drivers/mtd/devices/st_spi_fsm.h | 183 +++++++++++++++++++++++++++++++++++++++
1 file changed, 183 insertions(+)
create mode 100644 drivers/mtd/devices/st_spi_fsm.h
diff --git a/drivers/mtd/devices/st_spi_fsm.h b/drivers/mtd/devices/st_spi_fsm.h
new file mode 100644
index 0000000..11ca33a
--- /dev/null
+++ b/drivers/mtd/devices/st_spi_fsm.h
@@ -0,0 +1,183 @@
+/*
+ * st_spi_fsm.c Support for ST Serial Flash Controller
+ *
+ * Author: Angus Clark <angus.clark at st.com>
+ *
+ * Copyright (C) 2010-2013 STicroelectronics Limited
+ *
+ * JEDEC probe based on drivers/mtd/devices/m25p80.c
+ *
+ * This code 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 ST_SPI_FSM_H
+#define ST_SPI_FSM_H
+
+/*
+ * FSM SPI Controller Registers
+ */
+#define SPI_CLOCKDIV 0x0010
+#define SPI_MODESELECT 0x0018
+#define SPI_CONFIGDATA 0x0020
+#define SPI_STA_MODE_CHANGE 0x0028
+#define SPI_FAST_SEQ_TRANSFER_SIZE 0x0100
+#define SPI_FAST_SEQ_ADD1 0x0104
+#define SPI_FAST_SEQ_ADD2 0x0108
+#define SPI_FAST_SEQ_ADD_CFG 0x010c
+#define SPI_FAST_SEQ_OPC1 0x0110
+#define SPI_FAST_SEQ_OPC2 0x0114
+#define SPI_FAST_SEQ_OPC3 0x0118
+#define SPI_FAST_SEQ_OPC4 0x011c
+#define SPI_FAST_SEQ_OPC5 0x0120
+#define SPI_MODE_BITS 0x0124
+#define SPI_DUMMY_BITS 0x0128
+#define SPI_FAST_SEQ_FLASH_STA_DATA 0x012c
+#define SPI_FAST_SEQ_1 0x0130
+#define SPI_FAST_SEQ_2 0x0134
+#define SPI_FAST_SEQ_3 0x0138
+#define SPI_FAST_SEQ_4 0x013c
+#define SPI_FAST_SEQ_CFG 0x0140
+#define SPI_FAST_SEQ_STA 0x0144
+#define SPI_QUAD_BOOT_SEQ_INIT_1 0x0148
+#define SPI_QUAD_BOOT_SEQ_INIT_2 0x014c
+#define SPI_QUAD_BOOT_READ_SEQ_1 0x0150
+#define SPI_QUAD_BOOT_READ_SEQ_2 0x0154
+#define SPI_PROGRAM_ERASE_TIME 0x0158
+#define SPI_MULT_PAGE_REPEAT_SEQ_1 0x015c
+#define SPI_MULT_PAGE_REPEAT_SEQ_2 0x0160
+#define SPI_STATUS_WR_TIME_REG 0x0164
+#define SPI_FAST_SEQ_DATA_REG 0x0300
+
+/*
+ * Register: SPI_MODESELECT
+ */
+#define SPI_MODESELECT_CONTIG 0x01
+#define SPI_MODESELECT_FASTREAD 0x02
+#define SPI_MODESELECT_DUALIO 0x04
+#define SPI_MODESELECT_FSM 0x08
+#define SPI_MODESELECT_QUADBOOT 0x10
+
+/*
+ * Register: SPI_CONFIGDATA
+ */
+#define SPI_CFG_DEVICE_ST 0x1
+#define SPI_CFG_DEVICE_ATMEL 0x4
+#define SPI_CFG_MIN_CS_HIGH(x) (((x) & 0xfff) << 4)
+#define SPI_CFG_CS_SETUPHOLD(x) (((x) & 0xff) << 16)
+#define SPI_CFG_DATA_HOLD(x) (((x) & 0xff) << 24)
+
+/*
+ * Register: SPI_FAST_SEQ_TRANSFER_SIZE
+ */
+#define TRANSFER_SIZE(x) ((x) * 8)
+
+/*
+ * Register: SPI_FAST_SEQ_ADD_CFG
+ */
+#define ADR_CFG_CYCLES_ADD1(x) ((x) << 0)
+#define ADR_CFG_PADS_1_ADD1 (0x0 << 6)
+#define ADR_CFG_PADS_2_ADD1 (0x1 << 6)
+#define ADR_CFG_PADS_4_ADD1 (0x3 << 6)
+#define ADR_CFG_CSDEASSERT_ADD1 (1 << 8)
+#define ADR_CFG_CYCLES_ADD2(x) ((x) << (0+16))
+#define ADR_CFG_PADS_1_ADD2 (0x0 << (6+16))
+#define ADR_CFG_PADS_2_ADD2 (0x1 << (6+16))
+#define ADR_CFG_PADS_4_ADD2 (0x3 << (6+16))
+#define ADR_CFG_CSDEASSERT_ADD2 (1 << (8+16))
+
+/*
+ * Register: SPI_FAST_SEQ_n
+ */
+#define SEQ_OPC_OPCODE(x) ((x) << 0)
+#define SEQ_OPC_CYCLES(x) ((x) << 8)
+#define SEQ_OPC_PADS_1 (0x0 << 14)
+#define SEQ_OPC_PADS_2 (0x1 << 14)
+#define SEQ_OPC_PADS_4 (0x3 << 14)
+#define SEQ_OPC_CSDEASSERT (1 << 16)
+
+/*
+ * Register: SPI_FAST_SEQ_CFG
+ */
+#define SEQ_CFG_STARTSEQ (1 << 0)
+#define SEQ_CFG_SWRESET (1 << 5)
+#define SEQ_CFG_CSDEASSERT (1 << 6)
+#define SEQ_CFG_READNOTWRITE (1 << 7)
+#define SEQ_CFG_ERASE (1 << 8)
+#define SEQ_CFG_PADS_1 (0x0 << 16)
+#define SEQ_CFG_PADS_2 (0x1 << 16)
+#define SEQ_CFG_PADS_4 (0x3 << 16)
+
+/*
+ * Register: SPI_MODE_BITS
+ */
+#define MODE_DATA(x) (x & 0xff)
+#define MODE_CYCLES(x) ((x & 0x3f) << 16)
+#define MODE_PADS_1 (0x0 << 22)
+#define MODE_PADS_2 (0x1 << 22)
+#define MODE_PADS_4 (0x3 << 22)
+#define DUMMY_CSDEASSERT (1 << 24)
+
+/*
+ * Register: SPI_DUMMY_BITS
+ */
+#define DUMMY_CYCLES(x) ((x & 0x3f) << 16)
+#define DUMMY_PADS_1 (0x0 << 22)
+#define DUMMY_PADS_2 (0x1 << 22)
+#define DUMMY_PADS_4 (0x3 << 22)
+#define DUMMY_CSDEASSERT (1 << 24)
+
+/*
+ * Register: SPI_FAST_SEQ_FLASH_STA_DATA
+ */
+#define STA_DATA_BYTE1(x) ((x & 0xff) << 0)
+#define STA_DATA_BYTE2(x) ((x & 0xff) << 8)
+#define STA_PADS_1 (0x0 << 16)
+#define STA_PADS_2 (0x1 << 16)
+#define STA_PADS_4 (0x3 << 16)
+#define STA_CSDEASSERT (0x1 << 20)
+#define STA_RDNOTWR (0x1 << 21)
+
+/*
+ * FSM SPI Instruction Opcodes
+ */
+#define STFSM_OPC_CMD 0x1
+#define STFSM_OPC_ADD 0x2
+#define STFSM_OPC_STA 0x3
+#define STFSM_OPC_MODE 0x4
+#define STFSM_OPC_DUMMY 0x5
+#define STFSM_OPC_DATA 0x6
+#define STFSM_OPC_WAIT 0x7
+#define STFSM_OPC_JUMP 0x8
+#define STFSM_OPC_GOTO 0x9
+#define STFSM_OPC_STOP 0xF
+
+/*
+ * FSM SPI Instructions (== opcode + operand).
+ */
+#define STFSM_INSTR(cmd, op) ((cmd) | ((op) << 4))
+
+#define STFSM_INST_CMD1 STFSM_INSTR(STFSM_OPC_CMD, 1)
+#define STFSM_INST_CMD2 STFSM_INSTR(STFSM_OPC_CMD, 2)
+#define STFSM_INST_CMD3 STFSM_INSTR(STFSM_OPC_CMD, 3)
+#define STFSM_INST_CMD4 STFSM_INSTR(STFSM_OPC_CMD, 4)
+#define STFSM_INST_CMD5 STFSM_INSTR(STFSM_OPC_CMD, 5)
+#define STFSM_INST_ADD1 STFSM_INSTR(STFSM_OPC_ADD, 1)
+#define STFSM_INST_ADD2 STFSM_INSTR(STFSM_OPC_ADD, 2)
+
+#define STFSM_INST_DATA_WRITE STFSM_INSTR(STFSM_OPC_DATA, 1)
+#define STFSM_INST_DATA_READ STFSM_INSTR(STFSM_OPC_DATA, 2)
+
+#define STFSM_INST_STA_RD1 STFSM_INSTR(STFSM_OPC_STA, 0x1)
+#define STFSM_INST_STA_WR1 STFSM_INSTR(STFSM_OPC_STA, 0x1)
+#define STFSM_INST_STA_RD2 STFSM_INSTR(STFSM_OPC_STA, 0x2)
+#define STFSM_INST_STA_WR1_2 STFSM_INSTR(STFSM_OPC_STA, 0x3)
+
+#define STFSM_INST_MODE STFSM_INSTR(STFSM_OPC_MODE, 0)
+#define STFSM_INST_DUMMY STFSM_INSTR(STFSM_OPC_DUMMY, 0)
+#define STFSM_INST_WAIT STFSM_INSTR(STFSM_OPC_WAIT, 0)
+#define STFSM_INST_STOP STFSM_INSTR(STFSM_OPC_STOP, 0)
+
+#endif /* ST_SPI_FSM_H */
--
1.8.1.2
More information about the linux-arm-kernel
mailing list