mirror of
https://github.com/brain-hackers/u-boot-brain
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c4e932ce73
Analysis of the flash drivers shows that they all use 0x20 if the erase size is 4KiB, or 0xd8 if it's larger. So with this info in hand, we can unify all the erase functionality in one place. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
103 lines
1.9 KiB
C
103 lines
1.9 KiB
C
/*
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* Copyright 2008, Network Appliance Inc.
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* Author: Jason McMullan <mcmullan <at> netapp.com>
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* Licensed under the GPL-2 or later.
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*/
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#include <common.h>
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#include <malloc.h>
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#include <spi_flash.h>
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#include "spi_flash_internal.h"
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struct winbond_spi_flash_params {
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uint16_t id;
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uint16_t nr_blocks;
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const char *name;
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};
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static const struct winbond_spi_flash_params winbond_spi_flash_table[] = {
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{
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.id = 0x3013,
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.nr_blocks = 8,
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.name = "W25X40",
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},
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{
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.id = 0x3015,
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.nr_blocks = 32,
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.name = "W25X16",
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},
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{
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.id = 0x3016,
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.nr_blocks = 64,
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.name = "W25X32",
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},
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{
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.id = 0x3017,
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.nr_blocks = 128,
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.name = "W25X64",
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},
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{
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.id = 0x4014,
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.nr_blocks = 16,
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.name = "W25Q80BL",
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},
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{
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.id = 0x4015,
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.nr_blocks = 32,
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.name = "W25Q16",
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},
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{
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.id = 0x4016,
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.nr_blocks = 64,
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.name = "W25Q32",
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},
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{
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.id = 0x4017,
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.nr_blocks = 128,
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.name = "W25Q64",
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},
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{
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.id = 0x4018,
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.nr_blocks = 256,
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.name = "W25Q128",
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},
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};
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struct spi_flash *spi_flash_probe_winbond(struct spi_slave *spi, u8 *idcode)
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{
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const struct winbond_spi_flash_params *params;
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struct spi_flash *flash;
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(winbond_spi_flash_table); i++) {
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params = &winbond_spi_flash_table[i];
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if (params->id == ((idcode[1] << 8) | idcode[2]))
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break;
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}
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if (i == ARRAY_SIZE(winbond_spi_flash_table)) {
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debug("SF: Unsupported Winbond ID %02x%02x\n",
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idcode[1], idcode[2]);
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return NULL;
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}
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flash = malloc(sizeof(*flash));
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if (!flash) {
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debug("SF: Failed to allocate memory\n");
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return NULL;
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}
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flash->spi = spi;
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flash->name = params->name;
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flash->write = spi_flash_cmd_write_multi;
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flash->erase = spi_flash_cmd_erase;
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flash->read = spi_flash_cmd_read_fast;
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flash->page_size = 4096;
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flash->sector_size = 4096;
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flash->size = 4096 * 16 * params->nr_blocks;
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return flash;
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}
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