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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>
73 lines
1.4 KiB
C
73 lines
1.4 KiB
C
/*
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* (C) Copyright 2010, ucRobotics Inc.
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* Author: Chong Huang <chuang@ucrobotics.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 eon_spi_flash_params {
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u8 idcode1;
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u16 nr_sectors;
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const char *name;
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};
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static const struct eon_spi_flash_params eon_spi_flash_table[] = {
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{
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.idcode1 = 0x16,
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.nr_sectors = 1024,
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.name = "EN25Q32B",
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},
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{
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.idcode1 = 0x18,
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.nr_sectors = 4096,
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.name = "EN25Q128",
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},
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{
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.idcode1 = 0x16,
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.nr_sectors = 1024,
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.name = "EN25Q32B",
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},
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};
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struct spi_flash *spi_flash_probe_eon(struct spi_slave *spi, u8 *idcode)
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{
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const struct eon_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(eon_spi_flash_table); ++i) {
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params = &eon_spi_flash_table[i];
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if (params->idcode1 == idcode[2])
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break;
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}
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if (i == ARRAY_SIZE(eon_spi_flash_table)) {
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debug("SF: Unsupported EON ID %02x\n", idcode[1]);
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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 = 256;
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flash->sector_size = 256 * 16 * 16;
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flash->size = 256 * 16
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* params->nr_sectors;
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return flash;
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}
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