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Diffstat (limited to 'drivers/mtd/spi/spi_flash_probe_legacy.c')
-rw-r--r--drivers/mtd/spi/spi_flash_probe_legacy.c276
1 files changed, 0 insertions, 276 deletions
diff --git a/drivers/mtd/spi/spi_flash_probe_legacy.c b/drivers/mtd/spi/spi_flash_probe_legacy.c
deleted file mode 100644
index 32ec578d0d..0000000000
--- a/drivers/mtd/spi/spi_flash_probe_legacy.c
+++ /dev/null
@@ -1,276 +0,0 @@
-/*
- * SPI flash probing
- *
- * Copyright (C) 2008 Atmel Corporation
- * Copyright (C) 2010 Reinhard Meyer, EMK Elektronik
- * Copyright (C) 2013 Jagannadha Sutradharudu Teki, Xilinx Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <common.h>
-#include <fdtdec.h>
-#include <malloc.h>
-#include <spi.h>
-#include <spi_flash.h>
-
-#include "spi_flash_internal.h"
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#ifdef CONFIG_SPI_FLASH_BAR
-int spi_flash_bank_config(struct spi_flash *flash, u8 idcode0)
-{
- u8 cmd;
- u8 curr_bank = 0;
-
- /* discover bank cmds */
- switch (idcode0) {
- case SPI_FLASH_SPANSION_IDCODE0:
- flash->bank_read_cmd = CMD_BANKADDR_BRRD;
- flash->bank_write_cmd = CMD_BANKADDR_BRWR;
- break;
- case SPI_FLASH_STMICRO_IDCODE0:
- case SPI_FLASH_WINBOND_IDCODE0:
- flash->bank_read_cmd = CMD_EXTNADDR_RDEAR;
- flash->bank_write_cmd = CMD_EXTNADDR_WREAR;
- break;
- default:
- printf("SF: Unsupported bank commands %02x\n", idcode0);
- return -1;
- }
-
- /* read the bank reg - on which bank the flash is in currently */
- cmd = flash->bank_read_cmd;
- if (flash->size > SPI_FLASH_16MB_BOUN) {
- if (spi_flash_read_common(flash, &cmd, 1, &curr_bank, 1)) {
- debug("SF: fail to read bank addr register\n");
- return -1;
- }
- flash->bank_curr = curr_bank;
- } else {
- flash->bank_curr = curr_bank;
- }
-
- return 0;
-}
-#endif
-
-#ifdef CONFIG_OF_CONTROL
-int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
-{
- fdt_addr_t addr;
- fdt_size_t size;
- int node;
-
- /* If there is no node, do nothing */
- node = fdtdec_next_compatible(blob, 0, COMPAT_GENERIC_SPI_FLASH);
- if (node < 0)
- return 0;
-
- addr = fdtdec_get_addr_size(blob, node, "memory-map", &size);
- if (addr == FDT_ADDR_T_NONE) {
- debug("%s: Cannot decode address\n", __func__);
- return 0;
- }
-
- if (flash->size != size) {
- debug("%s: Memory map must cover entire device\n", __func__);
- return -1;
- }
- flash->memory_map = (void *)addr;
-
- return 0;
-}
-#endif /* CONFIG_OF_CONTROL */
-
-/*
- * The following table holds all device probe functions
- *
- * shift: number of continuation bytes before the ID
- * idcode: the expected IDCODE or 0xff for non JEDEC devices
- * probe: the function to call
- *
- * Non JEDEC devices should be ordered in the table such that
- * the probe functions with best detection algorithms come first.
- *
- * Several matching entries are permitted, they will be tried
- * in sequence until a probe function returns non NULL.
- *
- * IDCODE_CONT_LEN may be redefined if a device needs to declare a
- * larger "shift" value. IDCODE_PART_LEN generally shouldn't be
- * changed. This is the max number of bytes probe functions may
- * examine when looking up part-specific identification info.
- *
- * Probe functions will be given the idcode buffer starting at their
- * manu id byte (the "idcode" in the table below). In other words,
- * all of the continuation bytes will be skipped (the "shift" below).
- */
-#define IDCODE_CONT_LEN 0
-#define IDCODE_PART_LEN 5
-static const struct {
- const u8 shift;
- const u8 idcode;
- struct spi_flash *(*probe) (struct spi_slave *spi, u8 *idcode);
-} flashes[] = {
- /* Keep it sorted by define name */
-#ifdef CONFIG_SPI_FLASH_ATMEL
- { 0, 0x1f, spi_flash_probe_atmel, },
-#endif
-#ifdef CONFIG_SPI_FLASH_EON
- { 0, 0x1c, spi_flash_probe_eon, },
-#endif
-#ifdef CONFIG_SPI_FLASH_GIGADEVICE
- { 0, 0xc8, spi_flash_probe_gigadevice, },
-#endif
-#ifdef CONFIG_SPI_FLASH_MACRONIX
- { 0, 0xc2, spi_flash_probe_macronix, },
-#endif
-#ifdef CONFIG_SPI_FLASH_SPANSION
- { 0, 0x01, spi_flash_probe_spansion, },
-#endif
-#ifdef CONFIG_SPI_FLASH_SST
- { 0, 0xbf, spi_flash_probe_sst, },
-#endif
-#ifdef CONFIG_SPI_FLASH_STMICRO
- { 0, 0x20, spi_flash_probe_stmicro, },
-#endif
-#ifdef CONFIG_SPI_FLASH_WINBOND
- { 0, 0xef, spi_flash_probe_winbond, },
-#endif
-#ifdef CONFIG_SPI_FRAM_RAMTRON
- { 6, 0xc2, spi_fram_probe_ramtron, },
-# undef IDCODE_CONT_LEN
-# define IDCODE_CONT_LEN 6
-#endif
- /* Keep it sorted by best detection */
-#ifdef CONFIG_SPI_FLASH_STMICRO
- { 0, 0xff, spi_flash_probe_stmicro, },
-#endif
-#ifdef CONFIG_SPI_FRAM_RAMTRON_NON_JEDEC
- { 0, 0xff, spi_fram_probe_ramtron, },
-#endif
-};
-#define IDCODE_LEN (IDCODE_CONT_LEN + IDCODE_PART_LEN)
-
-struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs,
- unsigned int max_hz, unsigned int spi_mode)
-{
- struct spi_slave *spi;
- struct spi_flash *flash = NULL;
- int ret, i, shift;
- u8 idcode[IDCODE_LEN], *idp;
-
- spi = spi_setup_slave(bus, cs, max_hz, spi_mode);
- if (!spi) {
- printf("SF: Failed to set up slave\n");
- return NULL;
- }
-
- ret = spi_claim_bus(spi);
- if (ret) {
- debug("SF: Failed to claim SPI bus: %d\n", ret);
- goto err_claim_bus;
- }
-
- /* Read the ID codes */
- ret = spi_flash_cmd(spi, CMD_READ_ID, idcode, sizeof(idcode));
- if (ret)
- goto err_read_id;
-
-#ifdef DEBUG
- printf("SF: Got idcodes\n");
- print_buffer(0, idcode, 1, sizeof(idcode), 0);
-#endif
-
- /* count the number of continuation bytes */
- for (shift = 0, idp = idcode;
- shift < IDCODE_CONT_LEN && *idp == 0x7f;
- ++shift, ++idp)
- continue;
-
- /* search the table for matches in shift and id */
- for (i = 0; i < ARRAY_SIZE(flashes); ++i)
- if (flashes[i].shift == shift && flashes[i].idcode == *idp) {
- /* we have a match, call probe */
- flash = flashes[i].probe(spi, idp);
- if (flash)
- break;
- }
-
- if (!flash) {
- printf("SF: Unsupported manufacturer %02x\n", *idp);
- goto err_manufacturer_probe;
- }
-
-#ifdef CONFIG_SPI_FLASH_BAR
- /* Configure the BAR - disover bank cmds and read current bank */
- ret = spi_flash_bank_config(flash, *idp);
- if (ret < 0)
- goto err_manufacturer_probe;
-#endif
-
-#ifdef CONFIG_OF_CONTROL
- if (spi_flash_decode_fdt(gd->fdt_blob, flash)) {
- debug("SF: FDT decode error\n");
- goto err_manufacturer_probe;
- }
-#endif
-#ifndef CONFIG_SPL_BUILD
- printf("SF: Detected %s with page size ", flash->name);
- print_size(flash->sector_size, ", total ");
- print_size(flash->size, "");
- if (flash->memory_map)
- printf(", mapped at %p", flash->memory_map);
- puts("\n");
-#endif
-#ifndef CONFIG_SPI_FLASH_BAR
- if (flash->size > SPI_FLASH_16MB_BOUN) {
- puts("SF: Warning - Only lower 16MiB accessible,");
- puts(" Full access #define CONFIG_SPI_FLASH_BAR\n");
- }
-#endif
-
- spi_release_bus(spi);
-
- return flash;
-
-err_manufacturer_probe:
-err_read_id:
- spi_release_bus(spi);
-err_claim_bus:
- spi_free_slave(spi);
- return NULL;
-}
-
-void *spi_flash_do_alloc(int offset, int size, struct spi_slave *spi,
- const char *name)
-{
- struct spi_flash *flash;
- void *ptr;
-
- ptr = malloc(size);
- if (!ptr) {
- debug("SF: Failed to allocate memory\n");
- return NULL;
- }
- memset(ptr, '\0', size);
- flash = (struct spi_flash *)(ptr + offset);
-
- /* Set up some basic fields - caller will sort out sizes */
- flash->spi = spi;
- flash->name = name;
- flash->poll_cmd = CMD_READ_STATUS;
-
- flash->read = spi_flash_cmd_read_fast;
- flash->write = spi_flash_cmd_write_multi;
- flash->erase = spi_flash_cmd_erase;
-
- return flash;
-}
-
-void spi_flash_free(struct spi_flash *flash)
-{
- spi_free_slave(flash->spi);
- free(flash);
-}
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