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The S25HL-T/S25HS-T family is the Infineon SEMPER Flash with Quad SPI. These Infineon chips support volatile version of configuration registers and it is recommended to update volatile registers in the field application due to a risk of the non-volatile registers corruption by power interrupt. Add support for volatile QE bit. For the single-die package parts (512Mb and 1Gb), only bottom 4KB and uniform sector sizes are supported. This is due to missing or incorrect entries in SMPT. Fixup for other sector sizes configurations will be followed up as needed. Tested on Xilinx Zynq-7000 FPGA board. Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com> Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Acked-by: Michael Walle <michael@walle.cc> Link: https://lore.kernel.org/r/20220725092505.446315-8-tudor.ambarus@microchip.com
548 lines
17 KiB
C
548 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2005, Intec Automation Inc.
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* Copyright (C) 2014, Freescale Semiconductor, Inc.
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*/
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#include <linux/mtd/spi-nor.h>
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#include "core.h"
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/* flash_info mfr_flag. Used to clear sticky prorietary SR bits. */
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#define USE_CLSR BIT(0)
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#define SPINOR_OP_CLSR 0x30 /* Clear status register 1 */
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#define SPINOR_OP_RD_ANY_REG 0x65 /* Read any register */
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#define SPINOR_OP_WR_ANY_REG 0x71 /* Write any register */
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#define SPINOR_REG_CYPRESS_CFR1V 0x00800002
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#define SPINOR_REG_CYPRESS_CFR1V_QUAD_EN BIT(1) /* Quad Enable */
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#define SPINOR_REG_CYPRESS_CFR2V 0x00800003
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#define SPINOR_REG_CYPRESS_CFR2V_MEMLAT_11_24 0xb
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#define SPINOR_REG_CYPRESS_CFR3V 0x00800004
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#define SPINOR_REG_CYPRESS_CFR3V_PGSZ BIT(4) /* Page size. */
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#define SPINOR_REG_CYPRESS_CFR5V 0x00800006
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#define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN 0x3
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#define SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_DS 0
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#define SPINOR_OP_CYPRESS_RD_FAST 0xee
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/* Cypress SPI NOR flash operations. */
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#define CYPRESS_NOR_WR_ANY_REG_OP(naddr, addr, ndata, buf) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_WR_ANY_REG, 0), \
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SPI_MEM_OP_ADDR(naddr, addr, 0), \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_DATA_OUT(ndata, buf, 0))
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#define CYPRESS_NOR_RD_ANY_REG_OP(naddr, addr, buf) \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_RD_ANY_REG, 0), \
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SPI_MEM_OP_ADDR(naddr, addr, 0), \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_DATA_IN(1, buf, 0))
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#define SPANSION_CLSR_OP \
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SPI_MEM_OP(SPI_MEM_OP_CMD(SPINOR_OP_CLSR, 0), \
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SPI_MEM_OP_NO_ADDR, \
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SPI_MEM_OP_NO_DUMMY, \
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SPI_MEM_OP_NO_DATA)
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static int cypress_nor_octal_dtr_en(struct spi_nor *nor)
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{
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struct spi_mem_op op;
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u8 *buf = nor->bouncebuf;
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int ret;
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/* Use 24 dummy cycles for memory array reads. */
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*buf = SPINOR_REG_CYPRESS_CFR2V_MEMLAT_11_24;
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op = (struct spi_mem_op)
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CYPRESS_NOR_WR_ANY_REG_OP(3, SPINOR_REG_CYPRESS_CFR2V, 1, buf);
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ret = spi_nor_write_any_volatile_reg(nor, &op, nor->reg_proto);
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if (ret)
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return ret;
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nor->read_dummy = 24;
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/* Set the octal and DTR enable bits. */
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buf[0] = SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_EN;
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op = (struct spi_mem_op)
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CYPRESS_NOR_WR_ANY_REG_OP(3, SPINOR_REG_CYPRESS_CFR5V, 1, buf);
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ret = spi_nor_write_any_volatile_reg(nor, &op, nor->reg_proto);
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if (ret)
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return ret;
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/* Read flash ID to make sure the switch was successful. */
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ret = spi_nor_read_id(nor, 4, 3, buf, SNOR_PROTO_8_8_8_DTR);
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if (ret) {
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dev_dbg(nor->dev, "error %d reading JEDEC ID after enabling 8D-8D-8D mode\n", ret);
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return ret;
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}
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if (memcmp(buf, nor->info->id, nor->info->id_len))
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return -EINVAL;
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return 0;
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}
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static int cypress_nor_octal_dtr_dis(struct spi_nor *nor)
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{
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struct spi_mem_op op;
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u8 *buf = nor->bouncebuf;
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int ret;
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/*
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* The register is 1-byte wide, but 1-byte transactions are not allowed
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* in 8D-8D-8D mode. Since there is no register at the next location,
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* just initialize the value to 0 and let the transaction go on.
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*/
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buf[0] = SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_DS;
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buf[1] = 0;
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op = (struct spi_mem_op)
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CYPRESS_NOR_WR_ANY_REG_OP(4, SPINOR_REG_CYPRESS_CFR5V, 2, buf);
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ret = spi_nor_write_any_volatile_reg(nor, &op, SNOR_PROTO_8_8_8_DTR);
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if (ret)
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return ret;
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/* Read flash ID to make sure the switch was successful. */
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ret = spi_nor_read_id(nor, 0, 0, buf, SNOR_PROTO_1_1_1);
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if (ret) {
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dev_dbg(nor->dev, "error %d reading JEDEC ID after disabling 8D-8D-8D mode\n", ret);
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return ret;
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}
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if (memcmp(buf, nor->info->id, nor->info->id_len))
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return -EINVAL;
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return 0;
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}
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/**
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* cypress_nor_quad_enable_volatile() - enable Quad I/O mode in volatile
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* register.
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* @nor: pointer to a 'struct spi_nor'
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*
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* It is recommended to update volatile registers in the field application due
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* to a risk of the non-volatile registers corruption by power interrupt. This
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* function sets Quad Enable bit in CFR1 volatile. If users set the Quad Enable
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* bit in the CFR1 non-volatile in advance (typically by a Flash programmer
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* before mounting Flash on PCB), the Quad Enable bit in the CFR1 volatile is
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* also set during Flash power-up.
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*
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* Return: 0 on success, -errno otherwise.
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*/
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static int cypress_nor_quad_enable_volatile(struct spi_nor *nor)
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{
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struct spi_mem_op op;
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u8 addr_mode_nbytes = nor->params->addr_mode_nbytes;
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u8 cfr1v_written;
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int ret;
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op = (struct spi_mem_op)
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CYPRESS_NOR_RD_ANY_REG_OP(addr_mode_nbytes,
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SPINOR_REG_CYPRESS_CFR1V,
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nor->bouncebuf);
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ret = spi_nor_read_any_reg(nor, &op, nor->reg_proto);
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if (ret)
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return ret;
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if (nor->bouncebuf[0] & SPINOR_REG_CYPRESS_CFR1V_QUAD_EN)
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return 0;
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/* Update the Quad Enable bit. */
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nor->bouncebuf[0] |= SPINOR_REG_CYPRESS_CFR1V_QUAD_EN;
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op = (struct spi_mem_op)
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CYPRESS_NOR_WR_ANY_REG_OP(addr_mode_nbytes,
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SPINOR_REG_CYPRESS_CFR1V, 1,
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nor->bouncebuf);
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ret = spi_nor_write_any_volatile_reg(nor, &op, nor->reg_proto);
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if (ret)
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return ret;
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cfr1v_written = nor->bouncebuf[0];
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/* Read back and check it. */
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op = (struct spi_mem_op)
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CYPRESS_NOR_RD_ANY_REG_OP(addr_mode_nbytes,
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SPINOR_REG_CYPRESS_CFR1V,
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nor->bouncebuf);
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ret = spi_nor_read_any_reg(nor, &op, nor->reg_proto);
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if (ret)
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return ret;
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if (nor->bouncebuf[0] != cfr1v_written) {
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dev_err(nor->dev, "CFR1: Read back test failed\n");
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return -EIO;
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}
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return 0;
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}
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/**
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* cypress_nor_set_page_size() - Set page size which corresponds to the flash
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* configuration.
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* @nor: pointer to a 'struct spi_nor'
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*
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* The BFPT table advertises a 512B or 256B page size depending on part but the
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* page size is actually configurable (with the default being 256B). Read from
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* CFR3V[4] and set the correct size.
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*
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* Return: 0 on success, -errno otherwise.
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*/
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static int cypress_nor_set_page_size(struct spi_nor *nor)
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{
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struct spi_mem_op op =
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CYPRESS_NOR_RD_ANY_REG_OP(3, SPINOR_REG_CYPRESS_CFR3V,
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nor->bouncebuf);
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int ret;
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ret = spi_nor_read_any_reg(nor, &op, nor->reg_proto);
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if (ret)
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return ret;
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if (nor->bouncebuf[0] & SPINOR_REG_CYPRESS_CFR3V_PGSZ)
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nor->params->page_size = 512;
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else
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nor->params->page_size = 256;
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return 0;
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}
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static int
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s25hx_t_post_bfpt_fixup(struct spi_nor *nor,
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const struct sfdp_parameter_header *bfpt_header,
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const struct sfdp_bfpt *bfpt)
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{
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/* Replace Quad Enable with volatile version */
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nor->params->quad_enable = cypress_nor_quad_enable_volatile;
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return cypress_nor_set_page_size(nor);
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}
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static void s25hx_t_post_sfdp_fixup(struct spi_nor *nor)
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{
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struct spi_nor_erase_type *erase_type =
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nor->params->erase_map.erase_type;
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unsigned int i;
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/*
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* In some parts, 3byte erase opcodes are advertised by 4BAIT.
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* Convert them to 4byte erase opcodes.
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*/
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for (i = 0; i < SNOR_ERASE_TYPE_MAX; i++) {
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switch (erase_type[i].opcode) {
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case SPINOR_OP_SE:
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erase_type[i].opcode = SPINOR_OP_SE_4B;
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break;
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case SPINOR_OP_BE_4K:
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erase_type[i].opcode = SPINOR_OP_BE_4K_4B;
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break;
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default:
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break;
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}
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}
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}
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static void s25hx_t_late_init(struct spi_nor *nor)
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{
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struct spi_nor_flash_parameter *params = nor->params;
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/* Fast Read 4B requires mode cycles */
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params->reads[SNOR_CMD_READ_FAST].num_mode_clocks = 8;
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/* The writesize should be ECC data unit size */
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params->writesize = 16;
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}
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static struct spi_nor_fixups s25hx_t_fixups = {
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.post_bfpt = s25hx_t_post_bfpt_fixup,
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.post_sfdp = s25hx_t_post_sfdp_fixup,
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.late_init = s25hx_t_late_init,
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};
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/**
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* cypress_nor_octal_dtr_enable() - Enable octal DTR on Cypress flashes.
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* @nor: pointer to a 'struct spi_nor'
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* @enable: whether to enable or disable Octal DTR
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*
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* This also sets the memory access latency cycles to 24 to allow the flash to
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* run at up to 200MHz.
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*
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* Return: 0 on success, -errno otherwise.
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*/
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static int cypress_nor_octal_dtr_enable(struct spi_nor *nor, bool enable)
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{
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return enable ? cypress_nor_octal_dtr_en(nor) :
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cypress_nor_octal_dtr_dis(nor);
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}
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static void s28hs512t_default_init(struct spi_nor *nor)
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{
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nor->params->octal_dtr_enable = cypress_nor_octal_dtr_enable;
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nor->params->writesize = 16;
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}
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static void s28hs512t_post_sfdp_fixup(struct spi_nor *nor)
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{
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/*
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* On older versions of the flash the xSPI Profile 1.0 table has the
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* 8D-8D-8D Fast Read opcode as 0x00. But it actually should be 0xEE.
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*/
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if (nor->params->reads[SNOR_CMD_READ_8_8_8_DTR].opcode == 0)
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nor->params->reads[SNOR_CMD_READ_8_8_8_DTR].opcode =
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SPINOR_OP_CYPRESS_RD_FAST;
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/* This flash is also missing the 4-byte Page Program opcode bit. */
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spi_nor_set_pp_settings(&nor->params->page_programs[SNOR_CMD_PP],
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SPINOR_OP_PP_4B, SNOR_PROTO_1_1_1);
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/*
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* Since xSPI Page Program opcode is backward compatible with
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* Legacy SPI, use Legacy SPI opcode there as well.
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*/
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spi_nor_set_pp_settings(&nor->params->page_programs[SNOR_CMD_PP_8_8_8_DTR],
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SPINOR_OP_PP_4B, SNOR_PROTO_8_8_8_DTR);
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/*
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* The xSPI Profile 1.0 table advertises the number of additional
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* address bytes needed for Read Status Register command as 0 but the
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* actual value for that is 4.
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*/
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nor->params->rdsr_addr_nbytes = 4;
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}
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static int s28hs512t_post_bfpt_fixup(struct spi_nor *nor,
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const struct sfdp_parameter_header *bfpt_header,
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const struct sfdp_bfpt *bfpt)
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{
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return cypress_nor_set_page_size(nor);
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}
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static const struct spi_nor_fixups s28hs512t_fixups = {
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.default_init = s28hs512t_default_init,
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.post_sfdp = s28hs512t_post_sfdp_fixup,
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.post_bfpt = s28hs512t_post_bfpt_fixup,
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};
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static int
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s25fs_s_nor_post_bfpt_fixups(struct spi_nor *nor,
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const struct sfdp_parameter_header *bfpt_header,
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const struct sfdp_bfpt *bfpt)
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{
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/*
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* The S25FS-S chip family reports 512-byte pages in BFPT but
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* in reality the write buffer still wraps at the safe default
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* of 256 bytes. Overwrite the page size advertised by BFPT
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* to get the writes working.
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*/
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nor->params->page_size = 256;
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return 0;
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}
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static const struct spi_nor_fixups s25fs_s_nor_fixups = {
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.post_bfpt = s25fs_s_nor_post_bfpt_fixups,
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};
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static const struct flash_info spansion_nor_parts[] = {
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/* Spansion/Cypress -- single (large) sector size only, at least
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* for the chips listed here (without boot sectors).
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*/
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{ "s25sl032p", INFO(0x010215, 0x4d00, 64 * 1024, 64)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
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{ "s25sl064p", INFO(0x010216, 0x4d00, 64 * 1024, 128)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
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{ "s25fl128s0", INFO6(0x012018, 0x4d0080, 256 * 1024, 64)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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},
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{ "s25fl128s1", INFO6(0x012018, 0x4d0180, 64 * 1024, 256)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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},
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{ "s25fl256s0", INFO6(0x010219, 0x4d0080, 256 * 1024, 128)
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NO_SFDP_FLAGS(SPI_NOR_SKIP_SFDP | SPI_NOR_DUAL_READ |
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SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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},
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{ "s25fl256s1", INFO6(0x010219, 0x4d0180, 64 * 1024, 512)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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},
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{ "s25fl512s", INFO6(0x010220, 0x4d0080, 256 * 1024, 256)
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FLAGS(SPI_NOR_HAS_LOCK)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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},
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{ "s25fs128s1", INFO6(0x012018, 0x4d0181, 64 * 1024, 256)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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.fixups = &s25fs_s_nor_fixups, },
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{ "s25fs256s0", INFO6(0x010219, 0x4d0081, 256 * 1024, 128)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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},
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{ "s25fs256s1", INFO6(0x010219, 0x4d0181, 64 * 1024, 512)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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},
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{ "s25fs512s", INFO6(0x010220, 0x4d0081, 256 * 1024, 256)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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.fixups = &s25fs_s_nor_fixups, },
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{ "s25sl12800", INFO(0x012018, 0x0300, 256 * 1024, 64) },
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{ "s25sl12801", INFO(0x012018, 0x0301, 64 * 1024, 256) },
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{ "s25fl129p0", INFO(0x012018, 0x4d00, 256 * 1024, 64)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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},
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{ "s25fl129p1", INFO(0x012018, 0x4d01, 64 * 1024, 256)
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NO_SFDP_FLAGS(SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
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MFR_FLAGS(USE_CLSR)
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},
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{ "s25sl004a", INFO(0x010212, 0, 64 * 1024, 8) },
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{ "s25sl008a", INFO(0x010213, 0, 64 * 1024, 16) },
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{ "s25sl016a", INFO(0x010214, 0, 64 * 1024, 32) },
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{ "s25sl032a", INFO(0x010215, 0, 64 * 1024, 64) },
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{ "s25sl064a", INFO(0x010216, 0, 64 * 1024, 128) },
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{ "s25fl004k", INFO(0xef4013, 0, 64 * 1024, 8)
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NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
|
|
SPI_NOR_QUAD_READ) },
|
|
{ "s25fl008k", INFO(0xef4014, 0, 64 * 1024, 16)
|
|
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
|
|
SPI_NOR_QUAD_READ) },
|
|
{ "s25fl016k", INFO(0xef4015, 0, 64 * 1024, 32)
|
|
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
|
|
SPI_NOR_QUAD_READ) },
|
|
{ "s25fl064k", INFO(0xef4017, 0, 64 * 1024, 128)
|
|
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
|
|
SPI_NOR_QUAD_READ) },
|
|
{ "s25fl116k", INFO(0x014015, 0, 64 * 1024, 32)
|
|
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
|
|
SPI_NOR_QUAD_READ) },
|
|
{ "s25fl132k", INFO(0x014016, 0, 64 * 1024, 64)
|
|
NO_SFDP_FLAGS(SECT_4K) },
|
|
{ "s25fl164k", INFO(0x014017, 0, 64 * 1024, 128)
|
|
NO_SFDP_FLAGS(SECT_4K) },
|
|
{ "s25fl204k", INFO(0x014013, 0, 64 * 1024, 8)
|
|
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
|
|
{ "s25fl208k", INFO(0x014014, 0, 64 * 1024, 16)
|
|
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ) },
|
|
{ "s25fl064l", INFO(0x016017, 0, 64 * 1024, 128)
|
|
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
|
|
FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
|
|
{ "s25fl128l", INFO(0x016018, 0, 64 * 1024, 256)
|
|
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
|
|
FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
|
|
{ "s25fl256l", INFO(0x016019, 0, 64 * 1024, 512)
|
|
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
|
|
FIXUP_FLAGS(SPI_NOR_4B_OPCODES) },
|
|
{ "s25hl512t", INFO6(0x342a1a, 0x0f0390, 256 * 1024, 256)
|
|
PARSE_SFDP
|
|
MFR_FLAGS(USE_CLSR)
|
|
.fixups = &s25hx_t_fixups },
|
|
{ "s25hl01gt", INFO6(0x342a1b, 0x0f0390, 256 * 1024, 512)
|
|
PARSE_SFDP
|
|
MFR_FLAGS(USE_CLSR)
|
|
.fixups = &s25hx_t_fixups },
|
|
{ "s25hs512t", INFO6(0x342b1a, 0x0f0390, 256 * 1024, 256)
|
|
PARSE_SFDP
|
|
MFR_FLAGS(USE_CLSR)
|
|
.fixups = &s25hx_t_fixups },
|
|
{ "s25hs01gt", INFO6(0x342b1b, 0x0f0390, 256 * 1024, 512)
|
|
PARSE_SFDP
|
|
MFR_FLAGS(USE_CLSR)
|
|
.fixups = &s25hx_t_fixups },
|
|
{ "cy15x104q", INFO6(0x042cc2, 0x7f7f7f, 512 * 1024, 1)
|
|
FLAGS(SPI_NOR_NO_ERASE) },
|
|
{ "s28hs512t", INFO(0x345b1a, 0, 256 * 1024, 256)
|
|
NO_SFDP_FLAGS(SECT_4K | SPI_NOR_OCTAL_DTR_READ |
|
|
SPI_NOR_OCTAL_DTR_PP)
|
|
.fixups = &s28hs512t_fixups,
|
|
},
|
|
};
|
|
|
|
/**
|
|
* spansion_nor_clear_sr() - Clear the Status Register.
|
|
* @nor: pointer to 'struct spi_nor'.
|
|
*/
|
|
static void spansion_nor_clear_sr(struct spi_nor *nor)
|
|
{
|
|
int ret;
|
|
|
|
if (nor->spimem) {
|
|
struct spi_mem_op op = SPANSION_CLSR_OP;
|
|
|
|
spi_nor_spimem_setup_op(nor, &op, nor->reg_proto);
|
|
|
|
ret = spi_mem_exec_op(nor->spimem, &op);
|
|
} else {
|
|
ret = spi_nor_controller_ops_write_reg(nor, SPINOR_OP_CLSR,
|
|
NULL, 0);
|
|
}
|
|
|
|
if (ret)
|
|
dev_dbg(nor->dev, "error %d clearing SR\n", ret);
|
|
}
|
|
|
|
/**
|
|
* spansion_nor_sr_ready_and_clear() - Query the Status Register to see if the
|
|
* flash is ready for new commands and clear it if there are any errors.
|
|
* @nor: pointer to 'struct spi_nor'.
|
|
*
|
|
* Return: 1 if ready, 0 if not ready, -errno on errors.
|
|
*/
|
|
static int spansion_nor_sr_ready_and_clear(struct spi_nor *nor)
|
|
{
|
|
int ret;
|
|
|
|
ret = spi_nor_read_sr(nor, nor->bouncebuf);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (nor->bouncebuf[0] & (SR_E_ERR | SR_P_ERR)) {
|
|
if (nor->bouncebuf[0] & SR_E_ERR)
|
|
dev_err(nor->dev, "Erase Error occurred\n");
|
|
else
|
|
dev_err(nor->dev, "Programming Error occurred\n");
|
|
|
|
spansion_nor_clear_sr(nor);
|
|
|
|
/*
|
|
* WEL bit remains set to one when an erase or page program
|
|
* error occurs. Issue a Write Disable command to protect
|
|
* against inadvertent writes that can possibly corrupt the
|
|
* contents of the memory.
|
|
*/
|
|
ret = spi_nor_write_disable(nor);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return -EIO;
|
|
}
|
|
|
|
return !(nor->bouncebuf[0] & SR_WIP);
|
|
}
|
|
|
|
static void spansion_nor_late_init(struct spi_nor *nor)
|
|
{
|
|
if (nor->params->size > SZ_16M) {
|
|
nor->flags |= SNOR_F_4B_OPCODES;
|
|
/* No small sector erase for 4-byte command set */
|
|
nor->erase_opcode = SPINOR_OP_SE;
|
|
nor->mtd.erasesize = nor->info->sector_size;
|
|
}
|
|
|
|
if (nor->info->mfr_flags & USE_CLSR)
|
|
nor->params->ready = spansion_nor_sr_ready_and_clear;
|
|
}
|
|
|
|
static const struct spi_nor_fixups spansion_nor_fixups = {
|
|
.late_init = spansion_nor_late_init,
|
|
};
|
|
|
|
const struct spi_nor_manufacturer spi_nor_spansion = {
|
|
.name = "spansion",
|
|
.parts = spansion_nor_parts,
|
|
.nparts = ARRAY_SIZE(spansion_nor_parts),
|
|
.fixups = &spansion_nor_fixups,
|
|
};
|