| /* |
| * Copyright 2009(C) Marvell International Ltd. and its affiliates |
| * Prafulla Wadaskar <prafulla@marvell.com> |
| * |
| * Based on drivers/mtd/spi/stmicro.c |
| * |
| * Copyright 2008, Network Appliance Inc. |
| * Jason McMullan <mcmullan@netapp.com> |
| * |
| * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. |
| * TsiChung Liew (Tsi-Chung.Liew@freescale.com) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <console/console.h> |
| #include <stdlib.h> |
| #include <spi_flash.h> |
| #include <spi-generic.h> |
| #include <string.h> |
| |
| #include "spi_flash_internal.h" |
| |
| /* MX25xx-specific commands */ |
| #define CMD_MX25XX_WREN 0x06 /* Write Enable */ |
| #define CMD_MX25XX_WRDI 0x04 /* Write Disable */ |
| #define CMD_MX25XX_RDSR 0x05 /* Read Status Register */ |
| #define CMD_MX25XX_WRSR 0x01 /* Write Status Register */ |
| #define CMD_MX25XX_READ 0x03 /* Read Data Bytes */ |
| #define CMD_MX25XX_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */ |
| #define CMD_MX25XX_PP 0x02 /* Page Program */ |
| #define CMD_MX25XX_SE 0x20 /* Sector Erase */ |
| #define CMD_MX25XX_BE 0xD8 /* Block Erase */ |
| #define CMD_MX25XX_CE 0xc7 /* Chip Erase */ |
| #define CMD_MX25XX_DP 0xb9 /* Deep Power-down */ |
| #define CMD_MX25XX_RES 0xab /* Release from DP, and Read Signature */ |
| |
| #define MACRONIX_SR_WIP (1 << 0) /* Write-in-Progress */ |
| |
| struct macronix_spi_flash_params { |
| u16 idcode; |
| u16 page_size; |
| u16 pages_per_sector; |
| u16 sectors_per_block; |
| u16 nr_blocks; |
| const char *name; |
| }; |
| |
| struct macronix_spi_flash { |
| struct spi_flash flash; |
| const struct macronix_spi_flash_params *params; |
| }; |
| |
| static inline |
| struct macronix_spi_flash *to_macronix_spi_flash(const struct spi_flash *flash) |
| { |
| return container_of(flash, struct macronix_spi_flash, flash); |
| } |
| |
| static const struct macronix_spi_flash_params macronix_spi_flash_table[] = { |
| { |
| .idcode = 0x2015, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_blocks = 32, |
| .name = "MX25L1605D", |
| }, |
| { |
| .idcode = 0x2016, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_blocks = 64, |
| .name = "MX25L3205D", |
| }, |
| { |
| .idcode = 0x5e16, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_blocks = 64, |
| .name = "MX25L3235D", /* MX25L3225D/MX25L3235D/MX25L3236D/MX25L3237D */ |
| }, |
| { |
| .idcode = 0x2536, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_blocks = 64, |
| .name = "MX25L3239E", |
| }, |
| { |
| .idcode = 0x2017, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_blocks = 128, |
| .name = "MX25L6405D", |
| }, |
| { |
| .idcode = 0x2018, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_blocks = 256, |
| .name = "MX25L12805D", |
| }, |
| { |
| .idcode = 0x2618, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_blocks = 256, |
| .name = "MX25L12855E", |
| }, |
| { |
| .idcode = 0x2537, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_blocks = 128, |
| .name = "MX25U6435F", |
| }, |
| { |
| .idcode = 0x2538, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_blocks = 256, |
| .name = "MX25U12835F", |
| }, |
| { |
| .idcode = 0x9517, |
| .page_size = 256, |
| .pages_per_sector = 16, |
| .sectors_per_block = 16, |
| .nr_blocks = 128, |
| .name = "MX25L6495F", |
| }, |
| }; |
| |
| static int macronix_write(const struct spi_flash *flash, u32 offset, size_t len, |
| const void *buf) |
| { |
| struct macronix_spi_flash *mcx = to_macronix_spi_flash(flash); |
| unsigned long byte_addr; |
| unsigned long page_size; |
| size_t chunk_len; |
| size_t actual; |
| int ret = 0; |
| u8 cmd[4]; |
| |
| page_size = mcx->params->page_size; |
| |
| for (actual = 0; actual < len; actual += chunk_len) { |
| byte_addr = offset % page_size; |
| chunk_len = min(len - actual, page_size - byte_addr); |
| chunk_len = spi_crop_chunk(sizeof(cmd), chunk_len); |
| |
| cmd[0] = CMD_MX25XX_PP; |
| cmd[1] = (offset >> 16) & 0xff; |
| cmd[2] = (offset >> 8) & 0xff; |
| cmd[3] = offset & 0xff; |
| #if CONFIG_DEBUG_SPI_FLASH |
| printk(BIOS_SPEW, "PP: 0x%p => cmd = { 0x%02x 0x%02x%02x%02x }" |
| " chunk_len = %zu\n", |
| buf + actual, cmd[0], cmd[1], cmd[2], cmd[3], chunk_len); |
| #endif |
| |
| ret = spi_flash_cmd(&flash->spi, CMD_MX25XX_WREN, NULL, 0); |
| if (ret < 0) { |
| printk(BIOS_WARNING, "SF: Enabling Write failed\n"); |
| break; |
| } |
| |
| ret = spi_flash_cmd_write(&flash->spi, cmd, sizeof(cmd), |
| buf + actual, chunk_len); |
| if (ret < 0) { |
| printk(BIOS_WARNING, "SF: Macronix Page Program failed\n"); |
| break; |
| } |
| |
| ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT); |
| if (ret) |
| break; |
| |
| offset += chunk_len; |
| } |
| |
| #if CONFIG_DEBUG_SPI_FLASH |
| printk(BIOS_SPEW, "SF: Macronix: Successfully programmed %zu bytes @" |
| " 0x%lx\n", len, (unsigned long)(offset - len)); |
| #endif |
| |
| return ret; |
| } |
| |
| static struct macronix_spi_flash mcx; |
| |
| struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode) |
| { |
| const struct macronix_spi_flash_params *params; |
| unsigned int i; |
| u16 id = idcode[2] | idcode[1] << 8; |
| |
| for (i = 0; i < ARRAY_SIZE(macronix_spi_flash_table); i++) { |
| params = ¯onix_spi_flash_table[i]; |
| if (params->idcode == id) |
| break; |
| } |
| |
| if (i == ARRAY_SIZE(macronix_spi_flash_table)) { |
| printk(BIOS_WARNING, "SF: Unsupported Macronix ID %04x\n", id); |
| return NULL; |
| } |
| |
| mcx.params = params; |
| memcpy(&mcx.flash.spi, spi, sizeof(*spi)); |
| mcx.flash.name = params->name; |
| |
| mcx.flash.internal_write = macronix_write; |
| mcx.flash.internal_erase = spi_flash_cmd_erase; |
| mcx.flash.internal_status = spi_flash_cmd_status; |
| #if CONFIG_SPI_FLASH_NO_FAST_READ |
| mcx.flash.internal_read = spi_flash_cmd_read_slow; |
| #else |
| mcx.flash.internal_read = spi_flash_cmd_read_fast; |
| #endif |
| mcx.flash.sector_size = params->page_size * params->pages_per_sector; |
| mcx.flash.size = mcx.flash.sector_size * params->sectors_per_block * |
| params->nr_blocks; |
| mcx.flash.erase_cmd = CMD_MX25XX_SE; |
| mcx.flash.status_cmd = CMD_MX25XX_RDSR; |
| |
| return &mcx.flash; |
| } |