kernel.git - Linux vanilla kernels for Fedora – https://fedoraproject.org/wiki/Kernel_Vanilla

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Diffstat (limited to 'configs/fedora/debug/CONFIG_DEBUG_OBJECTS_TIMERS')

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/* * Driver for SST serial flashes * * (C) Copyright 2000-2002 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * Copyright 2008, Network Appliance Inc. * Jason McMullan <mcmullan@netapp.com> * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. * TsiChung Liew (Tsi-Chung.Liew@freescale.com) * Copyright (c) 2008-2009 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ #include <common.h> #include <malloc.h> #include <spi_flash.h> #include "spi_flash_internal.h" #define CMD_SST_BP 0x02 /* Byte Program */ #define CMD_SST_AAI_WP 0xAD /* Auto Address Increment Word Program */ #define SST_SR_WIP (1 << 0) /* Write-in-Progress */ #define SST_SR_WEL (1 << 1) /* Write enable */ #define SST_SR_BP0 (1 << 2) /* Block Protection 0 */ #define SST_SR_BP1 (1 << 3) /* Block Protection 1 */ #define SST_SR_BP2 (1 << 4) /* Block Protection 2 */ #define SST_SR_AAI (1 << 6) /* Addressing mode */ #define SST_SR_BPL (1 << 7) /* BP bits lock */ #define SST_FEAT_WP (1 << 0) /* Supports AAI word program */ #define SST_FEAT_MBP (1 << 1) /* Supports multibyte program */ struct sst_spi_flash_params { u8 idcode1; u8 flags; u16 nr_sectors; const char *name; }; struct sst_spi_flash { struct spi_flash flash; const struct sst_spi_flash_params *params; }; static const struct sst_spi_flash_params sst_spi_flash_table[] = { { .idcode1 = 0x8d, .flags = SST_FEAT_WP, .nr_sectors = 128, .name = "SST25VF040B", },{ .idcode1 = 0x8e, .flags = SST_FEAT_WP, .nr_sectors = 256, .name = "SST25VF080B", },{ .idcode1 = 0x41, .flags = SST_FEAT_WP, .nr_sectors = 512, .name = "SST25VF016B", },{ .idcode1 = 0x4a, .flags = SST_FEAT_WP, .nr_sectors = 1024, .name = "SST25VF032B", },{ .idcode1 = 0x4b, .flags = SST_FEAT_MBP, .nr_sectors = 2048, .name = "SST25VF064C", },{ .idcode1 = 0x01, .flags = SST_FEAT_WP, .nr_sectors = 16, .name = "SST25WF512", },{ .idcode1 = 0x02, .flags = SST_FEAT_WP, .nr_sectors = 32, .name = "SST25WF010", },{ .idcode1 = 0x03, .flags = SST_FEAT_WP, .nr_sectors = 64, .name = "SST25WF020", },{ .idcode1 = 0x04, .flags = SST_FEAT_WP, .nr_sectors = 128, .name = "SST25WF040", }, }; static int sst_byte_write(struct spi_flash *flash, u32 offset, const void *buf) { int ret; u8 cmd[4] = { CMD_SST_BP, offset >> 16, offset >> 8, offset, }; debug("BP[%02x]: 0x%p => cmd = { 0x%02x 0x%06x }\n", spi_w8r8(flash->spi, CMD_READ_STATUS), buf, cmd[0], offset); ret = spi_flash_cmd_write_enable(flash); if (ret) return ret; ret = spi_flash_cmd_write(flash->spi, cmd, sizeof(cmd), buf, 1); if (ret) return ret; return spi_flash_cmd_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);


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