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Diffstat (limited to 'qemu/roms/u-boot/drivers/mtd/cfi_mtd.c')
-rw-r--r--qemu/roms/u-boot/drivers/mtd/cfi_mtd.c263
1 files changed, 0 insertions, 263 deletions
diff --git a/qemu/roms/u-boot/drivers/mtd/cfi_mtd.c b/qemu/roms/u-boot/drivers/mtd/cfi_mtd.c
deleted file mode 100644
index ac805ff1e..000000000
--- a/qemu/roms/u-boot/drivers/mtd/cfi_mtd.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/*
- * (C) Copyright 2008 Semihalf
- *
- * Written by: Piotr Ziecik <kosmo@semihalf.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <flash.h>
-#include <malloc.h>
-
-#include <asm/errno.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/concat.h>
-#include <mtd/cfi_flash.h>
-
-static struct mtd_info cfi_mtd_info[CFI_MAX_FLASH_BANKS];
-static char cfi_mtd_names[CFI_MAX_FLASH_BANKS][16];
-#ifdef CONFIG_MTD_CONCAT
-static char c_mtd_name[16];
-#endif
-
-static int cfi_mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
-{
- flash_info_t *fi = mtd->priv;
- size_t a_start = fi->start[0] + instr->addr;
- size_t a_end = a_start + instr->len;
- int s_first = -1;
- int s_last = -1;
- int error, sect;
-
- for (sect = 0; sect < fi->sector_count; sect++) {
- if (a_start == fi->start[sect])
- s_first = sect;
-
- if (sect < fi->sector_count - 1) {
- if (a_end == fi->start[sect + 1]) {
- s_last = sect;
- break;
- }
- } else {
- s_last = sect;
- break;
- }
- }
-
- if (s_first >= 0 && s_first <= s_last) {
- instr->state = MTD_ERASING;
-
- flash_set_verbose(0);
- error = flash_erase(fi, s_first, s_last);
- flash_set_verbose(1);
-
- if (error) {
- instr->state = MTD_ERASE_FAILED;
- return -EIO;
- }
-
- instr->state = MTD_ERASE_DONE;
- mtd_erase_callback(instr);
- return 0;
- }
-
- return -EINVAL;
-}
-
-static int cfi_mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf)
-{
- flash_info_t *fi = mtd->priv;
- u_char *f = (u_char*)(fi->start[0]) + from;
-
- memcpy(buf, f, len);
- *retlen = len;
-
- return 0;
-}
-
-static int cfi_mtd_write(struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf)
-{
- flash_info_t *fi = mtd->priv;
- u_long t = fi->start[0] + to;
- int error;
-
- flash_set_verbose(0);
- error = write_buff(fi, (u_char*)buf, t, len);
- flash_set_verbose(1);
-
- if (!error) {
- *retlen = len;
- return 0;
- }
-
- return -EIO;
-}
-
-static void cfi_mtd_sync(struct mtd_info *mtd)
-{
- /*
- * This function should wait until all pending operations
- * finish. However this driver is fully synchronous, so
- * this function returns immediately
- */
-}
-
-static int cfi_mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
-{
- flash_info_t *fi = mtd->priv;
-
- flash_set_verbose(0);
- flash_protect(FLAG_PROTECT_SET, fi->start[0] + ofs,
- fi->start[0] + ofs + len - 1, fi);
- flash_set_verbose(1);
-
- return 0;
-}
-
-static int cfi_mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
-{
- flash_info_t *fi = mtd->priv;
-
- flash_set_verbose(0);
- flash_protect(FLAG_PROTECT_CLEAR, fi->start[0] + ofs,
- fi->start[0] + ofs + len - 1, fi);
- flash_set_verbose(1);
-
- return 0;
-}
-
-static int cfi_mtd_set_erasesize(struct mtd_info *mtd, flash_info_t *fi)
-{
- int sect_size = 0;
- int sect_size_old = 0;
- int sect;
- int regions = 0;
- int numblocks = 0;
- ulong offset;
- ulong base_addr;
-
- /*
- * First detect the number of eraseregions so that we can allocate
- * the array of eraseregions correctly
- */
- for (sect = 0; sect < fi->sector_count; sect++) {
- if (sect_size_old != flash_sector_size(fi, sect))
- regions++;
- sect_size_old = flash_sector_size(fi, sect);
- }
-
- switch (regions) {
- case 0:
- return 1;
- case 1: /* flash has uniform erase size */
- mtd->numeraseregions = 0;
- mtd->erasesize = sect_size_old;
- return 0;
- }
-
- mtd->numeraseregions = regions;
- mtd->eraseregions = malloc(sizeof(struct mtd_erase_region_info) * regions);
-
- /*
- * Now detect the largest sector and fill the eraseregions
- */
- regions = 0;
- base_addr = offset = fi->start[0];
- sect_size_old = flash_sector_size(fi, 0);
- for (sect = 0; sect < fi->sector_count; sect++) {
- if (sect_size_old != flash_sector_size(fi, sect)) {
- mtd->eraseregions[regions].offset = offset - base_addr;
- mtd->eraseregions[regions].erasesize = sect_size_old;
- mtd->eraseregions[regions].numblocks = numblocks;
- /* Now start counting the next eraseregions */
- numblocks = 0;
- regions++;
- offset = fi->start[sect];
- }
- numblocks++;
-
- /*
- * Select the largest sector size as erasesize (e.g. for UBI)
- */
- if (flash_sector_size(fi, sect) > sect_size)
- sect_size = flash_sector_size(fi, sect);
-
- sect_size_old = flash_sector_size(fi, sect);
- }
-
- /*
- * Set the last region
- */
- mtd->eraseregions[regions].offset = offset - base_addr;
- mtd->eraseregions[regions].erasesize = sect_size_old;
- mtd->eraseregions[regions].numblocks = numblocks;
-
- mtd->erasesize = sect_size;
-
- return 0;
-}
-
-int cfi_mtd_init(void)
-{
- struct mtd_info *mtd;
- flash_info_t *fi;
- int error, i;
-#ifdef CONFIG_MTD_CONCAT
- int devices_found = 0;
- struct mtd_info *mtd_list[CONFIG_SYS_MAX_FLASH_BANKS];
-#endif
-
- for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
- fi = &flash_info[i];
- mtd = &cfi_mtd_info[i];
-
- memset(mtd, 0, sizeof(struct mtd_info));
-
- error = cfi_mtd_set_erasesize(mtd, fi);
- if (error)
- continue;
-
- sprintf(cfi_mtd_names[i], "nor%d", i);
- mtd->name = cfi_mtd_names[i];
- mtd->type = MTD_NORFLASH;
- mtd->flags = MTD_CAP_NORFLASH;
- mtd->size = fi->size;
- mtd->writesize = 1;
-
- mtd->_erase = cfi_mtd_erase;
- mtd->_read = cfi_mtd_read;
- mtd->_write = cfi_mtd_write;
- mtd->_sync = cfi_mtd_sync;
- mtd->_lock = cfi_mtd_lock;
- mtd->_unlock = cfi_mtd_unlock;
- mtd->priv = fi;
-
- if (add_mtd_device(mtd))
- return -ENOMEM;
-
-#ifdef CONFIG_MTD_CONCAT
- mtd_list[devices_found++] = mtd;
-#endif
- }
-
-#ifdef CONFIG_MTD_CONCAT
- if (devices_found > 1) {
- /*
- * We detected multiple devices. Concatenate them together.
- */
- sprintf(c_mtd_name, "nor%d", devices_found);
- mtd = mtd_concat_create(mtd_list, devices_found, c_mtd_name);
-
- if (mtd == NULL)
- return -ENXIO;
-
- if (add_mtd_device(mtd))
- return -ENOMEM;
- }
-#endif /* CONFIG_MTD_CONCAT */
-
- return 0;
-}