2006-01-09 05:34:27 +08:00
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/*
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2007-06-25 06:12:35 +08:00
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* MTD SPI driver for ST M25Pxx (and similar) serial flash chips
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2006-01-09 05:34:27 +08:00
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*
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* Author: Mike Lavender, mike@steroidmicros.com
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*
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* Copyright (c) 2005, Intec Automation Inc.
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*
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* Some parts are based on lart.c by Abraham Van Der Merwe
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*
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* Cleaned up and generalized based on mtd_dataflash.c
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*
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* This code 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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*/
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2010-06-23 00:57:42 +08:00
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#include <linux/err.h>
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#include <linux/errno.h>
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2006-01-09 05:34:27 +08:00
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#include <linux/module.h>
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#include <linux/device.h>
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2007-06-25 06:09:13 +08:00
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2006-01-09 05:34:27 +08:00
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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2007-06-25 06:09:13 +08:00
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2006-01-09 05:34:27 +08:00
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#include <linux/spi/spi.h>
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#include <linux/spi/flash.h>
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2014-03-20 20:00:12 +08:00
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#include <linux/mtd/spi-nor.h>
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2006-01-09 05:34:27 +08:00
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2013-07-25 09:32:07 +08:00
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#define MAX_CMD_SIZE 6
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2006-01-09 05:34:27 +08:00
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struct m25p {
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struct spi_device *spi;
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2014-03-20 20:00:12 +08:00
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struct spi_nor spi_nor;
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2006-01-09 05:34:27 +08:00
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struct mtd_info mtd;
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2014-03-20 20:00:12 +08:00
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u8 command[MAX_CMD_SIZE];
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2006-01-09 05:34:27 +08:00
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};
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2014-03-20 20:00:12 +08:00
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static int m25p80_read_reg(struct spi_nor *nor, u8 code, u8 *val, int len)
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2013-11-06 22:35:35 +08:00
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{
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2014-03-20 20:00:12 +08:00
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struct m25p *flash = nor->priv;
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struct spi_device *spi = flash->spi;
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2013-11-06 22:35:35 +08:00
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int ret;
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2014-03-20 20:00:12 +08:00
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ret = spi_write_then_read(spi, &code, 1, val, len);
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if (ret < 0)
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dev_err(&spi->dev, "error %d reading %x\n", ret, code);
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2008-08-11 16:59:13 +08:00
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2014-03-20 20:00:12 +08:00
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return ret;
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2008-08-11 16:59:13 +08:00
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}
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2006-01-09 05:34:27 +08:00
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2014-03-20 20:00:12 +08:00
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static void m25p_addr2cmd(struct spi_nor *nor, unsigned int addr, u8 *cmd)
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mtd: m25p80: Add support for CAT25xxx serial EEPROMs
CAT25 chips (as manufactured by On Semiconductor, previously Catalyst
Semiconductor) are similar to the original M25Px0 chips, except:
- Address width can vary (1-2 bytes, in contrast to 3 bytes in M25P
chips). So, implement convenient m25p_addr2cmd() and m25p_cmdsz()
calls, and place address width information into flash_info struct;
- Page size can vary, therefore we shouldn't hardcode it, so get rid
of FLASH_PAGESIZE definition, and place the page size information
into flash_info struct;
- CAT25 EEPROMs don't need to be erased, so add NO_ERASE flag, and
propagate it to the mtd subsystem.
[dwmw2: Fix up for conflicts with DMA safety patch]
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-10-13 00:24:40 +08:00
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{
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/* opcode is in cmd[0] */
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2014-03-20 20:00:12 +08:00
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cmd[1] = addr >> (nor->addr_width * 8 - 8);
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cmd[2] = addr >> (nor->addr_width * 8 - 16);
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cmd[3] = addr >> (nor->addr_width * 8 - 24);
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cmd[4] = addr >> (nor->addr_width * 8 - 32);
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mtd: m25p80: Add support for CAT25xxx serial EEPROMs
CAT25 chips (as manufactured by On Semiconductor, previously Catalyst
Semiconductor) are similar to the original M25Px0 chips, except:
- Address width can vary (1-2 bytes, in contrast to 3 bytes in M25P
chips). So, implement convenient m25p_addr2cmd() and m25p_cmdsz()
calls, and place address width information into flash_info struct;
- Page size can vary, therefore we shouldn't hardcode it, so get rid
of FLASH_PAGESIZE definition, and place the page size information
into flash_info struct;
- CAT25 EEPROMs don't need to be erased, so add NO_ERASE flag, and
propagate it to the mtd subsystem.
[dwmw2: Fix up for conflicts with DMA safety patch]
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-10-13 00:24:40 +08:00
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}
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2014-03-20 20:00:12 +08:00
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static int m25p_cmdsz(struct spi_nor *nor)
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mtd: m25p80: Add support for CAT25xxx serial EEPROMs
CAT25 chips (as manufactured by On Semiconductor, previously Catalyst
Semiconductor) are similar to the original M25Px0 chips, except:
- Address width can vary (1-2 bytes, in contrast to 3 bytes in M25P
chips). So, implement convenient m25p_addr2cmd() and m25p_cmdsz()
calls, and place address width information into flash_info struct;
- Page size can vary, therefore we shouldn't hardcode it, so get rid
of FLASH_PAGESIZE definition, and place the page size information
into flash_info struct;
- CAT25 EEPROMs don't need to be erased, so add NO_ERASE flag, and
propagate it to the mtd subsystem.
[dwmw2: Fix up for conflicts with DMA safety patch]
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-10-13 00:24:40 +08:00
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{
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2014-03-20 20:00:12 +08:00
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return 1 + nor->addr_width;
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mtd: m25p80: Add support for CAT25xxx serial EEPROMs
CAT25 chips (as manufactured by On Semiconductor, previously Catalyst
Semiconductor) are similar to the original M25Px0 chips, except:
- Address width can vary (1-2 bytes, in contrast to 3 bytes in M25P
chips). So, implement convenient m25p_addr2cmd() and m25p_cmdsz()
calls, and place address width information into flash_info struct;
- Page size can vary, therefore we shouldn't hardcode it, so get rid
of FLASH_PAGESIZE definition, and place the page size information
into flash_info struct;
- CAT25 EEPROMs don't need to be erased, so add NO_ERASE flag, and
propagate it to the mtd subsystem.
[dwmw2: Fix up for conflicts with DMA safety patch]
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-10-13 00:24:40 +08:00
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}
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2014-03-20 20:00:12 +08:00
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static int m25p80_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len,
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int wr_en)
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2006-01-09 05:34:27 +08:00
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{
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2014-03-20 20:00:12 +08:00
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struct m25p *flash = nor->priv;
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struct spi_device *spi = flash->spi;
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2006-01-09 05:34:27 +08:00
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2014-03-20 20:00:12 +08:00
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flash->command[0] = opcode;
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if (buf)
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memcpy(&flash->command[1], buf, len);
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2006-01-09 05:34:27 +08:00
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2014-03-20 20:00:12 +08:00
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return spi_write(spi, flash->command, len + 1);
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2006-01-09 05:34:27 +08:00
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}
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2014-03-20 20:00:12 +08:00
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static void m25p80_write(struct spi_nor *nor, loff_t to, size_t len,
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size_t *retlen, const u_char *buf)
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2006-01-09 05:34:27 +08:00
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{
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2014-03-20 20:00:12 +08:00
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struct m25p *flash = nor->priv;
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struct spi_device *spi = flash->spi;
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struct spi_transfer t[2] = {};
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struct spi_message m;
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int cmd_sz = m25p_cmdsz(nor);
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2008-11-26 18:23:57 +08:00
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2014-03-20 20:00:12 +08:00
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spi_message_init(&m);
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2008-11-26 18:23:57 +08:00
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2014-04-09 09:15:31 +08:00
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if (nor->program_opcode == SPINOR_OP_AAI_WP && nor->sst_write_second)
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2014-03-20 20:00:12 +08:00
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cmd_sz = 1;
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2008-08-11 16:59:13 +08:00
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2014-03-20 20:00:12 +08:00
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flash->command[0] = nor->program_opcode;
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m25p_addr2cmd(nor, to, flash->command);
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2006-01-09 05:34:27 +08:00
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2014-03-20 20:00:12 +08:00
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t[0].tx_buf = flash->command;
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t[0].len = cmd_sz;
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spi_message_add_tail(&t[0], &m);
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2006-01-09 05:34:27 +08:00
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2014-03-20 20:00:12 +08:00
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t[1].tx_buf = buf;
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t[1].len = len;
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spi_message_add_tail(&t[1], &m);
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2006-01-09 05:34:27 +08:00
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2014-03-20 20:00:12 +08:00
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spi_sync(spi, &m);
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2006-01-09 05:34:27 +08:00
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2014-03-20 20:00:12 +08:00
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*retlen += m.actual_length - cmd_sz;
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2013-11-06 22:35:34 +08:00
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}
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2014-03-20 20:00:12 +08:00
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static inline unsigned int m25p80_rx_nbits(struct spi_nor *nor)
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2014-01-21 20:59:17 +08:00
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{
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2014-03-20 20:00:12 +08:00
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switch (nor->flash_read) {
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case SPI_NOR_DUAL:
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2014-01-21 20:59:18 +08:00
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return 2;
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2014-03-20 20:00:12 +08:00
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case SPI_NOR_QUAD:
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2014-01-21 20:59:17 +08:00
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return 4;
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default:
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return 0;
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}
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}
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2006-01-09 05:34:27 +08:00
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/*
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2014-03-20 20:00:12 +08:00
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* Read an address range from the nor chip. The address range
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2006-01-09 05:34:27 +08:00
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* may be any size provided it is within the physical boundaries.
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*/
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2014-03-20 20:00:12 +08:00
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static int m25p80_read(struct spi_nor *nor, loff_t from, size_t len,
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size_t *retlen, u_char *buf)
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2006-01-09 05:34:27 +08:00
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{
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2014-03-20 20:00:12 +08:00
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struct m25p *flash = nor->priv;
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struct spi_device *spi = flash->spi;
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2006-01-09 05:34:27 +08:00
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struct spi_transfer t[2];
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struct spi_message m;
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2014-04-28 11:53:38 +08:00
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unsigned int dummy = nor->read_dummy;
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2006-01-09 05:34:27 +08:00
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2014-04-28 11:53:38 +08:00
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/* convert the dummy cycles to the number of bytes */
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dummy /= 8;
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2006-01-09 05:34:28 +08:00
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spi_message_init(&m);
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memset(t, 0, (sizeof t));
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2014-03-20 20:00:12 +08:00
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flash->command[0] = nor->read_opcode;
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m25p_addr2cmd(nor, from, flash->command);
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2013-11-06 22:35:34 +08:00
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2006-01-09 05:34:28 +08:00
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t[0].tx_buf = flash->command;
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2014-03-20 20:00:12 +08:00
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t[0].len = m25p_cmdsz(nor) + dummy;
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2006-01-09 05:34:28 +08:00
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spi_message_add_tail(&t[0], &m);
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t[1].rx_buf = buf;
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2014-03-20 20:00:12 +08:00
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t[1].rx_nbits = m25p80_rx_nbits(nor);
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2006-01-09 05:34:28 +08:00
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t[1].len = len;
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spi_message_add_tail(&t[1], &m);
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2014-03-20 20:00:12 +08:00
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spi_sync(spi, &m);
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2006-01-09 05:34:27 +08:00
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2014-03-20 20:00:12 +08:00
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*retlen = m.actual_length - m25p_cmdsz(nor) - dummy;
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2006-01-09 05:34:27 +08:00
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return 0;
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}
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2014-03-20 20:00:12 +08:00
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static int m25p80_erase(struct spi_nor *nor, loff_t offset)
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2006-01-09 05:34:27 +08:00
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{
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2014-03-20 20:00:12 +08:00
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struct m25p *flash = nor->priv;
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2009-06-15 16:23:41 +08:00
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2014-03-20 20:00:12 +08:00
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dev_dbg(nor->dev, "%dKiB at 0x%08x\n",
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flash->mtd.erasesize / 1024, (u32)offset);
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2009-06-15 16:23:41 +08:00
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2014-03-20 20:00:12 +08:00
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/* Set up command buffer. */
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flash->command[0] = nor->erase_opcode;
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m25p_addr2cmd(nor, offset, flash->command);
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2007-06-25 06:12:35 +08:00
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2014-03-20 20:00:12 +08:00
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spi_write(flash->spi, flash->command, m25p_cmdsz(nor));
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2008-08-11 16:59:15 +08:00
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2014-03-20 20:00:12 +08:00
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return 0;
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2007-06-25 06:12:35 +08:00
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}
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2006-01-09 05:34:27 +08:00
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/*
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* board specific setup should have ensured the SPI clock used here
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* matches what the READ command supports, at least until this driver
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* understands FAST_READ (for clocks over 25 MHz).
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*/
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2012-11-20 02:23:07 +08:00
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static int m25p_probe(struct spi_device *spi)
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2006-01-09 05:34:27 +08:00
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{
|
2011-05-30 05:02:20 +08:00
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struct mtd_part_parser_data ppdata;
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2014-03-20 20:00:12 +08:00
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struct flash_platform_data *data;
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struct m25p *flash;
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struct spi_nor *nor;
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enum read_mode mode = SPI_NOR_NORMAL;
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2014-09-29 17:47:53 +08:00
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char *flash_name = NULL;
|
2013-11-06 22:35:35 +08:00
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int ret;
|
2011-10-14 15:49:00 +08:00
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2014-09-29 04:36:54 +08:00
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data = dev_get_platdata(&spi->dev);
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2013-07-25 09:32:07 +08:00
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flash = devm_kzalloc(&spi->dev, sizeof(*flash), GFP_KERNEL);
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2006-01-09 05:34:27 +08:00
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if (!flash)
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return -ENOMEM;
|
2013-07-25 09:32:07 +08:00
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2014-03-20 20:00:12 +08:00
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nor = &flash->spi_nor;
|
2008-07-04 14:54:42 +08:00
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|
2014-03-20 20:00:12 +08:00
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/* install the hooks */
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nor->read = m25p80_read;
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nor->write = m25p80_write;
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nor->erase = m25p80_erase;
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nor->write_reg = m25p80_write_reg;
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nor->read_reg = m25p80_read_reg;
|
2013-01-04 08:02:28 +08:00
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|
2014-03-20 20:00:12 +08:00
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nor->dev = &spi->dev;
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nor->mtd = &flash->mtd;
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nor->priv = flash;
|
2006-01-09 05:34:27 +08:00
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|
2014-03-20 20:00:12 +08:00
|
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|
spi_set_drvdata(spi, flash);
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flash->mtd.priv = nor;
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flash->spi = spi;
|
2007-06-25 06:12:35 +08:00
|
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|
2014-03-20 20:00:12 +08:00
|
|
|
if (spi->mode & SPI_RX_QUAD)
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|
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mode = SPI_NOR_QUAD;
|
2014-04-22 20:45:31 +08:00
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|
else if (spi->mode & SPI_RX_DUAL)
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|
mode = SPI_NOR_DUAL;
|
2014-09-29 04:36:54 +08:00
|
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|
if (data && data->name)
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flash->mtd.name = data->name;
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|
/* For some (historical?) reason many platforms provide two different
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|
* names in flash_platform_data: "name" and "type". Quite often name is
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|
* set to "m25p80" and then "type" provides a real chip name.
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|
* If that's the case, respect "type" and ignore a "name".
|
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|
|
*/
|
|
|
|
if (data && data->type)
|
2014-09-29 17:47:53 +08:00
|
|
|
flash_name = data->type;
|
2015-05-15 01:32:53 +08:00
|
|
|
else if (!strcmp(spi->modalias, "spi-nor"))
|
2015-03-28 01:29:50 +08:00
|
|
|
flash_name = NULL; /* auto-detect */
|
2014-09-29 17:47:53 +08:00
|
|
|
else
|
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|
flash_name = spi->modalias;
|
2014-09-29 04:36:54 +08:00
|
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|
2014-09-29 17:47:54 +08:00
|
|
|
ret = spi_nor_scan(nor, flash_name, mode);
|
2014-03-20 20:00:12 +08:00
|
|
|
if (ret)
|
|
|
|
return ret;
|
mtd: m25p80: Add support for CAT25xxx serial EEPROMs
CAT25 chips (as manufactured by On Semiconductor, previously Catalyst
Semiconductor) are similar to the original M25Px0 chips, except:
- Address width can vary (1-2 bytes, in contrast to 3 bytes in M25P
chips). So, implement convenient m25p_addr2cmd() and m25p_cmdsz()
calls, and place address width information into flash_info struct;
- Page size can vary, therefore we shouldn't hardcode it, so get rid
of FLASH_PAGESIZE definition, and place the page size information
into flash_info struct;
- CAT25 EEPROMs don't need to be erased, so add NO_ERASE flag, and
propagate it to the mtd subsystem.
[dwmw2: Fix up for conflicts with DMA safety patch]
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-10-13 00:24:40 +08:00
|
|
|
|
2011-05-30 05:02:20 +08:00
|
|
|
ppdata.of_node = spi->dev.of_node;
|
2013-11-06 22:35:35 +08:00
|
|
|
|
2011-06-02 21:59:16 +08:00
|
|
|
return mtd_device_parse_register(&flash->mtd, NULL, &ppdata,
|
|
|
|
data ? data->parts : NULL,
|
|
|
|
data ? data->nr_parts : 0);
|
2006-01-09 05:34:27 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2012-11-20 02:26:04 +08:00
|
|
|
static int m25p_remove(struct spi_device *spi)
|
2006-01-09 05:34:27 +08:00
|
|
|
{
|
2013-04-06 14:41:32 +08:00
|
|
|
struct m25p *flash = spi_get_drvdata(spi);
|
2006-01-09 05:34:27 +08:00
|
|
|
|
|
|
|
/* Clean up MTD stuff. */
|
2013-10-28 06:42:12 +08:00
|
|
|
return mtd_device_unregister(&flash->mtd);
|
2006-01-09 05:34:27 +08:00
|
|
|
}
|
|
|
|
|
2014-09-30 10:14:55 +08:00
|
|
|
/*
|
2015-03-28 01:29:50 +08:00
|
|
|
* Do NOT add to this array without reading the following:
|
|
|
|
*
|
|
|
|
* Historically, many flash devices are bound to this driver by their name. But
|
|
|
|
* since most of these flash are compatible to some extent, and their
|
|
|
|
* differences can often be differentiated by the JEDEC read-ID command, we
|
|
|
|
* encourage new users to add support to the spi-nor library, and simply bind
|
2015-05-15 01:32:53 +08:00
|
|
|
* against a generic string here (e.g., "jedec,spi-nor").
|
2015-03-28 01:29:50 +08:00
|
|
|
*
|
|
|
|
* Many flash names are kept here in this list (as well as in spi-nor.c) to
|
|
|
|
* keep them available as module aliases for existing platforms.
|
2014-09-30 10:14:55 +08:00
|
|
|
*/
|
|
|
|
static const struct spi_device_id m25p_ids[] = {
|
|
|
|
{"at25fs010"}, {"at25fs040"}, {"at25df041a"}, {"at25df321a"},
|
|
|
|
{"at25df641"}, {"at26f004"}, {"at26df081a"}, {"at26df161a"},
|
|
|
|
{"at26df321"}, {"at45db081d"},
|
|
|
|
{"en25f32"}, {"en25p32"}, {"en25q32b"}, {"en25p64"},
|
|
|
|
{"en25q64"}, {"en25qh128"}, {"en25qh256"},
|
|
|
|
{"f25l32pa"},
|
|
|
|
{"mr25h256"}, {"mr25h10"},
|
|
|
|
{"gd25q32"}, {"gd25q64"},
|
|
|
|
{"160s33b"}, {"320s33b"}, {"640s33b"},
|
|
|
|
{"mx25l2005a"}, {"mx25l4005a"}, {"mx25l8005"}, {"mx25l1606e"},
|
|
|
|
{"mx25l3205d"}, {"mx25l3255e"}, {"mx25l6405d"}, {"mx25l12805d"},
|
|
|
|
{"mx25l12855e"},{"mx25l25635e"},{"mx25l25655e"},{"mx66l51235l"},
|
|
|
|
{"mx66l1g55g"},
|
|
|
|
{"n25q064"}, {"n25q128a11"}, {"n25q128a13"}, {"n25q256a"},
|
|
|
|
{"n25q512a"}, {"n25q512ax3"}, {"n25q00"},
|
|
|
|
{"pm25lv512"}, {"pm25lv010"}, {"pm25lq032"},
|
|
|
|
{"s25sl032p"}, {"s25sl064p"}, {"s25fl256s0"}, {"s25fl256s1"},
|
|
|
|
{"s25fl512s"}, {"s70fl01gs"}, {"s25sl12800"}, {"s25sl12801"},
|
|
|
|
{"s25fl129p0"}, {"s25fl129p1"}, {"s25sl004a"}, {"s25sl008a"},
|
|
|
|
{"s25sl016a"}, {"s25sl032a"}, {"s25sl064a"}, {"s25fl008k"},
|
2014-11-10 23:54:53 +08:00
|
|
|
{"s25fl016k"}, {"s25fl064k"}, {"s25fl132k"},
|
2014-09-30 10:14:55 +08:00
|
|
|
{"sst25vf040b"},{"sst25vf080b"},{"sst25vf016b"},{"sst25vf032b"},
|
|
|
|
{"sst25vf064c"},{"sst25wf512"}, {"sst25wf010"}, {"sst25wf020"},
|
|
|
|
{"sst25wf040"},
|
|
|
|
{"m25p05"}, {"m25p10"}, {"m25p20"}, {"m25p40"},
|
|
|
|
{"m25p80"}, {"m25p16"}, {"m25p32"}, {"m25p64"},
|
|
|
|
{"m25p128"}, {"n25q032"},
|
|
|
|
{"m25p05-nonjedec"}, {"m25p10-nonjedec"}, {"m25p20-nonjedec"},
|
|
|
|
{"m25p40-nonjedec"}, {"m25p80-nonjedec"}, {"m25p16-nonjedec"},
|
|
|
|
{"m25p32-nonjedec"}, {"m25p64-nonjedec"}, {"m25p128-nonjedec"},
|
|
|
|
{"m45pe10"}, {"m45pe80"}, {"m45pe16"},
|
|
|
|
{"m25pe20"}, {"m25pe80"}, {"m25pe16"},
|
|
|
|
{"m25px16"}, {"m25px32"}, {"m25px32-s0"}, {"m25px32-s1"},
|
2014-11-10 23:54:54 +08:00
|
|
|
{"m25px64"}, {"m25px80"},
|
2014-09-30 10:14:55 +08:00
|
|
|
{"w25x10"}, {"w25x20"}, {"w25x40"}, {"w25x80"},
|
|
|
|
{"w25x16"}, {"w25x32"}, {"w25q32"}, {"w25q32dw"},
|
2014-11-10 23:54:54 +08:00
|
|
|
{"w25x64"}, {"w25q64"}, {"w25q80"}, {"w25q80bl"},
|
|
|
|
{"w25q128"}, {"w25q256"}, {"cat25c11"},
|
2014-09-30 10:14:55 +08:00
|
|
|
{"cat25c03"}, {"cat25c09"}, {"cat25c17"}, {"cat25128"},
|
2015-03-28 01:29:50 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Generic support for SPI NOR that can be identified by the JEDEC READ
|
|
|
|
* ID opcode (0x9F). Use this, if possible.
|
|
|
|
*/
|
2015-05-15 01:32:53 +08:00
|
|
|
{"spi-nor"},
|
2014-09-30 10:14:55 +08:00
|
|
|
{ },
|
|
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(spi, m25p_ids);
|
|
|
|
|
2006-01-09 05:34:27 +08:00
|
|
|
static struct spi_driver m25p80_driver = {
|
|
|
|
.driver = {
|
|
|
|
.name = "m25p80",
|
|
|
|
.owner = THIS_MODULE,
|
|
|
|
},
|
2014-09-30 10:14:55 +08:00
|
|
|
.id_table = m25p_ids,
|
2006-01-09 05:34:27 +08:00
|
|
|
.probe = m25p_probe,
|
2012-11-20 02:21:24 +08:00
|
|
|
.remove = m25p_remove,
|
2007-06-25 06:12:35 +08:00
|
|
|
|
|
|
|
/* REVISIT: many of these chips have deep power-down modes, which
|
|
|
|
* should clearly be entered on suspend() to minimize power use.
|
|
|
|
* And also when they're otherwise idle...
|
|
|
|
*/
|
2006-01-09 05:34:27 +08:00
|
|
|
};
|
|
|
|
|
2012-01-27 15:45:20 +08:00
|
|
|
module_spi_driver(m25p80_driver);
|
2006-01-09 05:34:27 +08:00
|
|
|
|
|
|
|
MODULE_LICENSE("GPL");
|
|
|
|
MODULE_AUTHOR("Mike Lavender");
|
|
|
|
MODULE_DESCRIPTION("MTD SPI driver for ST M25Pxx flash chips");
|