1191 lines
26 KiB
C
1191 lines
26 KiB
C
/*
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* Command for accessing SPI flash.
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*
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* Copyright (C) 2008 Atmel Corporation
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <div64.h>
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#include <dm.h>
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#include <malloc.h>
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#include <spi.h>
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#include <spi_flash.h>
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#include <asm/io.h>
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#include <dm/device-internal.h>
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static struct spi_flash *flash;
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/*
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* This function computes the length argument for the erase command.
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* The length on which the command is to operate can be given in two forms:
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* 1. <cmd> offset len - operate on <'offset', 'len')
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* 2. <cmd> offset +len - operate on <'offset', 'round_up(len)')
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* If the second form is used and the length doesn't fall on the
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* sector boundary, than it will be adjusted to the next sector boundary.
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* If it isn't in the flash, the function will fail (return -1).
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* Input:
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* arg: length specification (i.e. both command arguments)
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* Output:
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* len: computed length for operation
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* Return:
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* 1: success
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* -1: failure (bad format, bad address).
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*/
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static int sf_parse_len_arg(char *arg, ulong *len)
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{
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char *ep;
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char round_up_len; /* indicates if the "+length" form used */
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ulong len_arg;
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round_up_len = 0;
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if (*arg == '+') {
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round_up_len = 1;
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++arg;
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}
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len_arg = simple_strtoul(arg, &ep, 16);
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if (ep == arg || *ep != '\0')
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return -1;
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if (round_up_len && flash->sector_size > 0)
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*len = ROUND(len_arg, flash->sector_size);
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else
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*len = len_arg;
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return 1;
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}
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/**
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* This function takes a byte length and a delta unit of time to compute the
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* approximate bytes per second
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*
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* @param len amount of bytes currently processed
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* @param start_ms start time of processing in ms
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* @return bytes per second if OK, 0 on error
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*/
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static ulong bytes_per_second(unsigned int len, ulong start_ms)
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{
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/* less accurate but avoids overflow */
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if (len >= ((unsigned int) -1) / 1024)
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return len / (max(get_timer(start_ms) / 1024, 1UL));
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else
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return 1024 * len / max(get_timer(start_ms), 1UL);
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}
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static int do_spi_flash_probe(int argc, char * const argv[])
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{
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unsigned int bus = CONFIG_SF_DEFAULT_BUS;
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unsigned int cs = CONFIG_SF_DEFAULT_CS;
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unsigned int speed = CONFIG_SF_DEFAULT_SPEED;
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unsigned int mode = CONFIG_SF_DEFAULT_MODE;
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char *endp;
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#ifdef CONFIG_DM_SPI_FLASH
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struct udevice *new, *bus_dev;
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int ret;
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#else
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struct spi_flash *new;
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#endif
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if (argc >= 2) {
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cs = simple_strtoul(argv[1], &endp, 0);
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if (*argv[1] == 0 || (*endp != 0 && *endp != ':'))
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return -1;
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if (*endp == ':') {
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if (endp[1] == 0)
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return -1;
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bus = cs;
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cs = simple_strtoul(endp + 1, &endp, 0);
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if (*endp != 0)
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return -1;
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}
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}
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if (argc >= 3) {
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speed = simple_strtoul(argv[2], &endp, 0);
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if (*argv[2] == 0 || *endp != 0)
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return -1;
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}
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if (argc >= 4) {
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mode = simple_strtoul(argv[3], &endp, 16);
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if (*argv[3] == 0 || *endp != 0)
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return -1;
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}
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#ifdef CONFIG_DM_SPI_FLASH
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/* Remove the old device, otherwise probe will just be a nop */
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ret = spi_find_bus_and_cs(bus, cs, &bus_dev, &new);
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if (!ret) {
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device_remove(new);
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device_unbind(new);
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}
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flash = NULL;
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ret = spi_flash_probe_bus_cs(bus, cs, speed, mode, &new);
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if (ret) {
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printf("Failed to initialize SPI flash at %u:%u (error %d)\n",
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bus, cs, ret);
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return 1;
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}
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flash = new->uclass_priv;
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#else
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new = spi_flash_probe(bus, cs, speed, mode);
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if (!new) {
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printf("Failed to initialize SPI flash at %u:%u\n", bus, cs);
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return 1;
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}
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if (flash)
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spi_flash_free(flash);
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flash = new;
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#endif
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return 0;
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}
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int get_sf_size(int offset)
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{
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int ret = -1;
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if (NULL == flash)
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{
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printf("please do command:\"sf probe 0\" first!\n");
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return ret;
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}
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else
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{
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if (offset > flash->size)
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{
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printf("The offset(%d) is beyond spi flash size!\n", offset);
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return ret;
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}
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else
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{
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ret = flash->size - offset;
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return ret;
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}
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}
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}
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/**
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* Write a block of data to SPI flash, first checking if it is different from
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* what is already there.
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*
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* If the data being written is the same, then *skipped is incremented by len.
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*
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* @param flash flash context pointer
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* @param offset flash offset to write
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* @param len number of bytes to write
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* @param buf buffer to write from
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* @param cmp_buf read buffer to use to compare data
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* @param skipped Count of skipped data (incremented by this function)
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* @return NULL if OK, else a string containing the stage which failed
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*/
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static const char *spi_flash_update_block(struct spi_flash *flash, u32 offset,
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size_t len, const char *buf, char *cmp_buf, size_t *skipped)
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{
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debug("offset=%#x, sector_size=%#x, len=%#zx\n",
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offset, flash->sector_size, len);
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/* Read the entire sector so to allow for rewriting */
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if (spi_flash_read(flash, offset, flash->sector_size, cmp_buf))
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return "read";
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/* Compare only what is meaningful (len) */
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if (memcmp(cmp_buf, buf, len) == 0) {
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debug("Skip region %x size %zx: no change\n",
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offset, len);
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*skipped += len;
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return NULL;
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}
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/* Erase the entire sector */
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if (spi_flash_erase(flash, offset, flash->sector_size))
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return "erase";
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/* Write the initial part of the block from the source */
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if (spi_flash_write(flash, offset, len, buf))
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return "write";
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/* If it's a partial sector, rewrite the existing part */
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if (len != flash->sector_size) {
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/* Rewrite the original data to the end of the sector */
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if (spi_flash_write(flash, offset + len,
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flash->sector_size - len, &cmp_buf[len]))
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return "write";
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}
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return NULL;
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}
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/**
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* Update an area of SPI flash by erasing and writing any blocks which need
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* to change. Existing blocks with the correct data are left unchanged.
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*
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* @param flash flash context pointer
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* @param offset flash offset to write
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* @param len number of bytes to write
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* @param buf buffer to write from
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* @return 0 if ok, 1 on error
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*/
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static int spi_flash_update(struct spi_flash *flash, u32 offset,
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size_t len, const char *buf)
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{
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const char *err_oper = NULL;
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char *cmp_buf;
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const char *end = buf + len;
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size_t todo; /* number of bytes to do in this pass */
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size_t skipped = 0; /* statistics */
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const ulong start_time = get_timer(0);
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size_t scale = 1;
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const char *start_buf = buf;
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ulong delta;
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if (end - buf >= 200)
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scale = (end - buf) / 100;
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cmp_buf = malloc(flash->sector_size);
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if (cmp_buf) {
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ulong last_update = get_timer(0);
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for (; buf < end && !err_oper; buf += todo, offset += todo) {
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todo = min_t(size_t, end - buf, flash->sector_size);
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if (get_timer(last_update) > 100) {
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printf(" \rUpdating, %zu%% %lu B/s",
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100 - (end - buf) / scale,
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bytes_per_second(buf - start_buf,
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start_time));
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last_update = get_timer(0);
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}
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err_oper = spi_flash_update_block(flash, offset, todo,
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buf, cmp_buf, &skipped);
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}
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} else {
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err_oper = "malloc";
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}
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free(cmp_buf);
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putc('\r');
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if (err_oper) {
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printf("SPI flash failed in %s step\n", err_oper);
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return 1;
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}
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delta = get_timer(start_time);
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printf("%zu bytes written, %zu bytes skipped", len - skipped,
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skipped);
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printf(" in %ld.%lds, speed %ld B/s\n",
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delta / 1000, delta % 1000, bytes_per_second(len, start_time));
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return 0;
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}
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static int do_spi_flash_read_write(int argc, char * const argv[])
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{
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unsigned long addr;
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unsigned long offset;
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unsigned long len;
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void *buf;
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char *endp;
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int ret = 1;
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if (argc < 4)
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return -1;
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addr = simple_strtoul(argv[1], &endp, 16);
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if (*argv[1] == 0 || *endp != 0)
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return -1;
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offset = simple_strtoul(argv[2], &endp, 16);
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if (*argv[2] == 0 || *endp != 0)
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return -1;
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len = simple_strtoul(argv[3], &endp, 16);
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if (*argv[3] == 0 || *endp != 0)
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return -1;
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/* Consistency checking */
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if (offset + len > flash->size) {
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printf("ERROR: attempting %s past flash size (%#x)\n",
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argv[0], flash->size);
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return 1;
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}
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buf = map_physmem(addr, len, MAP_WRBACK);
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if (!buf) {
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puts("Failed to map physical memory\n");
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return 1;
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}
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if (strcmp(argv[0], "update") == 0) {
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ret = spi_flash_update(flash, offset, len, buf);
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} else if (strncmp(argv[0], "read", 4) == 0 ||
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strncmp(argv[0], "write", 5) == 0) {
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int read;
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read = strncmp(argv[0], "read", 4) == 0;
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if (read)
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ret = spi_flash_read(flash, offset, len, buf);
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else
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ret = spi_flash_write(flash, offset, len, buf);
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printf("SF: %zu bytes @ %#x %s: %s\n", (size_t)len, (u32)offset,
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read ? "Read" : "Written", ret ? "ERROR" : "OK");
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}
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unmap_physmem(buf, len);
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return ret == 0 ? 0 : 1;
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}
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static int do_spi_flash_erase(int argc, char * const argv[])
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{
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unsigned long offset;
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unsigned long len;
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char *endp;
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int ret;
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if (argc < 3)
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return -1;
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offset = simple_strtoul(argv[1], &endp, 16);
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if (*argv[1] == 0 || *endp != 0)
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return -1;
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ret = sf_parse_len_arg(argv[2], &len);
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if (ret != 1)
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return -1;
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/* Consistency checking */
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if (offset + len > flash->size) {
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printf("ERROR: attempting %s past flash size (%#x)\n",
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argv[0], flash->size);
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return 1;
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}
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ret = spi_flash_erase(flash, offset, len);
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printf("SF: %zu bytes @ %#x Erased: %s\n", (size_t)len, (u32)offset,
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ret ? "ERROR" : "OK");
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return ret == 0 ? 0 : 1;
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}
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#ifdef CONFIG_CMD_SF_TEST
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enum {
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STAGE_ERASE,
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STAGE_CHECK,
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STAGE_WRITE,
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STAGE_READ,
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STAGE_COUNT,
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};
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static char *stage_name[STAGE_COUNT] = {
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"erase",
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"check",
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"write",
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"read",
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};
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struct test_info {
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int stage;
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int bytes;
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unsigned base_ms;
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unsigned time_ms[STAGE_COUNT];
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};
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static void show_time(struct test_info *test, int stage)
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{
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uint64_t speed; /* KiB/s */
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int bps; /* Bits per second */
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speed = (long long)test->bytes * 1000;
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if (test->time_ms[stage])
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do_div(speed, test->time_ms[stage] * 1024);
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bps = speed * 8;
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printf("%d %s: %d ticks, %d KiB/s %d.%03d Mbps\n", stage,
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stage_name[stage], test->time_ms[stage],
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(int)speed, bps / 1000, bps % 1000);
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}
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static void spi_test_next_stage(struct test_info *test)
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{
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test->time_ms[test->stage] = get_timer(test->base_ms);
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show_time(test, test->stage);
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test->base_ms = get_timer(0);
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test->stage++;
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}
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/**
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* Run a test on the SPI flash
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*
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* @param flash SPI flash to use
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* @param buf Source buffer for data to write
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* @param len Size of data to read/write
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* @param offset Offset within flash to check
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* @param vbuf Verification buffer
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* @return 0 if ok, -1 on error
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*/
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static int spi_flash_test(struct spi_flash *flash, uint8_t *buf, ulong len,
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ulong offset, uint8_t *vbuf)
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{
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struct test_info test;
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int i;
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printf("SPI flash test:\n");
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memset(&test, '\0', sizeof(test));
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test.base_ms = get_timer(0);
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test.bytes = len;
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if (spi_flash_erase(flash, offset, len)) {
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printf("Erase failed\n");
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return -1;
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}
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spi_test_next_stage(&test);
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if (spi_flash_read(flash, offset, len, vbuf)) {
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printf("Check read failed\n");
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return -1;
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}
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for (i = 0; i < len; i++) {
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if (vbuf[i] != 0xff) {
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printf("Check failed at %d\n", i);
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print_buffer(i, vbuf + i, 1,
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min_t(uint, len - i, 0x40), 0);
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return -1;
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}
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}
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spi_test_next_stage(&test);
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if (spi_flash_write(flash, offset, len, buf)) {
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printf("Write failed\n");
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return -1;
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}
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memset(vbuf, '\0', len);
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spi_test_next_stage(&test);
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|
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if (spi_flash_read(flash, offset, len, vbuf)) {
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printf("Read failed\n");
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return -1;
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}
|
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spi_test_next_stage(&test);
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|
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for (i = 0; i < len; i++) {
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if (buf[i] != vbuf[i]) {
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printf("Verify failed at %d, good data:\n", i);
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print_buffer(i, buf + i, 1,
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min_t(uint, len - i, 0x40), 0);
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printf("Bad data:\n");
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print_buffer(i, vbuf + i, 1,
|
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min_t(uint, len - i, 0x40), 0);
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return -1;
|
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}
|
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}
|
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printf("Test passed\n");
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for (i = 0; i < STAGE_COUNT; i++)
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show_time(&test, i);
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|
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return 0;
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}
|
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|
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static int do_spi_flash_test(int argc, char * const argv[])
|
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{
|
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unsigned long offset;
|
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unsigned long len;
|
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uint8_t *buf, *from;
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char *endp;
|
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uint8_t *vbuf;
|
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int ret;
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|
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if (argc < 3)
|
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return -1;
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offset = simple_strtoul(argv[1], &endp, 16);
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if (*argv[1] == 0 || *endp != 0)
|
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return -1;
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len = simple_strtoul(argv[2], &endp, 16);
|
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if (*argv[2] == 0 || *endp != 0)
|
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return -1;
|
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|
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vbuf = malloc(len);
|
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if (!vbuf) {
|
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printf("Cannot allocate memory (%lu bytes)\n", len);
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return 1;
|
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}
|
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buf = malloc(len);
|
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if (!buf) {
|
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free(vbuf);
|
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printf("Cannot allocate memory (%lu bytes)\n", len);
|
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return 1;
|
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}
|
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|
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from = map_sysmem(CONFIG_SYS_TEXT_BASE, 0);
|
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memcpy(buf, from, len);
|
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ret = spi_flash_test(flash, buf, len, offset, vbuf);
|
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free(vbuf);
|
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free(buf);
|
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if (ret) {
|
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printf("Test failed\n");
|
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return 1;
|
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}
|
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|
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return 0;
|
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}
|
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#endif /* CONFIG_CMD_SF_TEST */
|
|
|
|
static int do_spi_flash(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[])
|
|
{
|
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const char *cmd;
|
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int ret;
|
|
|
|
/* need at least two arguments */
|
|
if (argc < 2)
|
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goto usage;
|
|
|
|
cmd = argv[1];
|
|
--argc;
|
|
++argv;
|
|
|
|
if (strcmp(cmd, "probe") == 0) {
|
|
ret = do_spi_flash_probe(argc, argv);
|
|
goto done;
|
|
}
|
|
|
|
/* The remaining commands require a selected device */
|
|
if (!flash) {
|
|
puts("No SPI flash selected. Please run `sf probe'\n");
|
|
return 1;
|
|
}
|
|
|
|
if (strcmp(cmd, "read") == 0 || strcmp(cmd, "write") == 0 ||
|
|
strcmp(cmd, "update") == 0)
|
|
ret = do_spi_flash_read_write(argc, argv);
|
|
else if (strcmp(cmd, "erase") == 0)
|
|
ret = do_spi_flash_erase(argc, argv);
|
|
#ifdef CONFIG_CMD_SF_TEST
|
|
else if (!strcmp(cmd, "test"))
|
|
ret = do_spi_flash_test(argc, argv);
|
|
#endif
|
|
else
|
|
ret = -1;
|
|
|
|
done:
|
|
if (ret != -1)
|
|
return ret;
|
|
|
|
usage:
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
#ifdef CONFIG_CMD_SF_TEST
|
|
#define SF_TEST_HELP "\nsf test offset len " \
|
|
"- run a very basic destructive test"
|
|
#else
|
|
#define SF_TEST_HELP
|
|
#endif
|
|
|
|
U_BOOT_CMD(
|
|
sf, 5, 1, do_spi_flash,
|
|
"SPI flash sub-system",
|
|
"probe [[bus:]cs] [hz] [mode] - init flash device on given SPI bus\n"
|
|
" and chip select\n"
|
|
"sf read addr offset len - read `len' bytes starting at\n"
|
|
" `offset' to memory at `addr'\n"
|
|
"sf write addr offset len - write `len' bytes from memory\n"
|
|
" at `addr' to flash at `offset'\n"
|
|
"sf erase offset [+]len - erase `len' bytes from `offset'\n"
|
|
" `+len' round up `len' to block size\n"
|
|
"sf update addr offset len - erase and write `len' bytes from memory\n"
|
|
" at `addr' to flash at `offset'"
|
|
SF_TEST_HELP
|
|
);
|
|
|
|
#ifdef CONFIG_CMD_MSTAR_SF
|
|
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#include <linux/list.h>
|
|
|
|
#define MTDIDS_MAXLEN 128
|
|
#define MTDPARTS_MAXLEN 512
|
|
|
|
|
|
/* special size referring to all the remaining space in a partition */
|
|
#define SIZE_REMAINING (~0llu)
|
|
|
|
/* special offset value, it is used when not provided by user
|
|
*
|
|
* this value is used temporarily during parsing, later such offests
|
|
* are recalculated */
|
|
#define OFFSET_NOT_SPECIFIED (~0llu)
|
|
|
|
/* minimum partition size */
|
|
#define MIN_PART_SIZE 4096
|
|
|
|
/* this flag needs to be set in part_info struct mask_flags
|
|
* field for read-only partitions */
|
|
#define MTD_WRITEABLE_CMD 1
|
|
|
|
#define SF_MTD_ID "nor0"
|
|
#define SF_BOOT "BOOT"
|
|
|
|
LIST_HEAD(sf_part_list);
|
|
|
|
//struct mtd_device {
|
|
// struct list_head link;
|
|
// struct mtdids *id; /* parent mtd id entry */
|
|
// u16 num_parts; /* number of partitions on this device */
|
|
// struct list_head parts; /* partitions */
|
|
//};
|
|
|
|
struct part_info {
|
|
struct list_head link;
|
|
char *name; /* partition name */
|
|
u8 auto_name; /* set to 1 for generated name */
|
|
u64 size; /* total size of the partition */
|
|
u64 offset; /* offset within device */
|
|
void *jffs2_priv; /* used internaly by jffs2 */
|
|
u32 mask_flags; /* kernel MTD mask flags */
|
|
u32 sector_size; /* size of sector */
|
|
struct mtd_device *dev; /* parent device */
|
|
};
|
|
|
|
struct mtdids {
|
|
struct list_head link;
|
|
u8 type; /* device type */
|
|
u8 num; /* device number */
|
|
u64 size; /* device size */
|
|
char *mtd_id; /* linux kernel device id */
|
|
};
|
|
|
|
|
|
/**
|
|
* Parses a string into a number. The number stored at ptr is
|
|
* potentially suffixed with K (for kilobytes, or 1024 bytes),
|
|
* M (for megabytes, or 1048576 bytes), or G (for gigabytes, or
|
|
* 1073741824). If the number is suffixed with K, M, or G, then
|
|
* the return value is the number multiplied by one kilobyte, one
|
|
* megabyte, or one gigabyte, respectively.
|
|
*
|
|
* @param ptr where parse begins
|
|
* @param retptr output pointer to next char after parse completes (output)
|
|
* @return resulting unsigned int
|
|
*/
|
|
static u64 memsize_parse (const char *const ptr, const char **retptr)
|
|
{
|
|
u64 ret = simple_strtoull(ptr, (char **)retptr, 0);
|
|
|
|
switch (**retptr) {
|
|
case 'G':
|
|
case 'g':
|
|
ret <<= 10;
|
|
case 'M':
|
|
case 'm':
|
|
ret <<= 10;
|
|
case 'K':
|
|
case 'k':
|
|
ret <<= 10;
|
|
(*retptr)++;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* Parse one partition definition, allocate memory and return pointer to this
|
|
* location in retpart.
|
|
*
|
|
* @param partdef pointer to the partition definition string i.e. <part-def>
|
|
* @param ret output pointer to next char after parse completes (output)
|
|
* @param retpart pointer to the allocated partition (output)
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int part_parse(const char *const partdef, const char **ret, struct part_info **retpart)
|
|
{
|
|
struct part_info *part;
|
|
u64 size;
|
|
u64 offset;
|
|
const char *name;
|
|
int name_len;
|
|
unsigned int mask_flags;
|
|
const char *p;
|
|
|
|
p = partdef;
|
|
*retpart = NULL;
|
|
*ret = NULL;
|
|
|
|
/* fetch the partition size */
|
|
if (*p == '-') {
|
|
/* assign all remaining space to this partition */
|
|
debug("'-': remaining size assigned\n");
|
|
size = SIZE_REMAINING;
|
|
p++;
|
|
} else {
|
|
size = memsize_parse(p, &p);
|
|
if (size < MIN_PART_SIZE) {
|
|
printf("partition size too small (%llx)\n", size);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/* check for offset */
|
|
offset = OFFSET_NOT_SPECIFIED;
|
|
if (*p == '@') {
|
|
p++;
|
|
offset = memsize_parse(p, &p);
|
|
}
|
|
|
|
/* now look for the name */
|
|
if (*p == '(') {
|
|
name = ++p;
|
|
if ((p = strchr(name, ')')) == NULL) {
|
|
printf("no closing ) found in partition name\n");
|
|
return 1;
|
|
}
|
|
name_len = p - name + 1;
|
|
if ((name_len - 1) == 0) {
|
|
printf("empty partition name\n");
|
|
return 1;
|
|
}
|
|
p++;
|
|
} else {
|
|
/* 0x00000000@0x00000000 */
|
|
name_len = 22;
|
|
name = NULL;
|
|
}
|
|
|
|
/* test for options */
|
|
mask_flags = 0;
|
|
if (strncmp(p, "ro", 2) == 0) {
|
|
mask_flags |= MTD_WRITEABLE_CMD;
|
|
p += 2;
|
|
}
|
|
|
|
/* check for next partition definition */
|
|
if (*p == ',') {
|
|
if (size == SIZE_REMAINING) {
|
|
*ret = NULL;
|
|
printf("no partitions allowed after a fill-up partition\n");
|
|
return 1;
|
|
}
|
|
*ret = ++p;
|
|
} else if ((*p == ';') || (*p == '\0')) {
|
|
*ret = p;
|
|
} else {
|
|
printf("unexpected character '%c' at the end of partition\n", *p);
|
|
*ret = NULL;
|
|
return 1;
|
|
}
|
|
|
|
/* allocate memory */
|
|
part = (struct part_info *)malloc(sizeof(struct part_info) + name_len);
|
|
if (!part) {
|
|
printf("out of memory\n");
|
|
return 1;
|
|
}
|
|
memset(part, 0, sizeof(struct part_info) + name_len);
|
|
part->size = size;
|
|
part->offset = offset;
|
|
part->mask_flags = mask_flags;
|
|
part->name = (char *)(part + 1);
|
|
|
|
if (name) {
|
|
/* copy user provided name */
|
|
strncpy(part->name, name, name_len - 1);
|
|
part->auto_name = 0;
|
|
} else {
|
|
/* auto generated name in form of size@offset */
|
|
sprintf(part->name, "0x%08llx@0x%08llx", size, offset);
|
|
part->auto_name = 1;
|
|
}
|
|
|
|
part->name[name_len - 1] = '\0';
|
|
INIT_LIST_HEAD(&part->link);
|
|
|
|
|
|
*retpart = part;
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* Delete all partitions from parts head list, free memory.
|
|
*
|
|
* @param head list of partitions to delete
|
|
*/
|
|
static void part_delall(struct list_head *head)
|
|
{
|
|
struct list_head *entry, *n;
|
|
struct part_info *part_tmp;
|
|
|
|
/* clean tmp_list and free allocated memory */
|
|
list_for_each_safe(entry, n, head) {
|
|
part_tmp = list_entry(entry, struct part_info, link);
|
|
|
|
list_del(entry);
|
|
free(part_tmp);
|
|
}
|
|
}
|
|
|
|
|
|
extern int ms_get_spi_env_offset(void);
|
|
/**
|
|
* Performs sanity check for supplied partition. Offset and size are
|
|
* verified to be within valid range. Partition type is checked and
|
|
* part_validate_eraseblock() is called with the argument of part.
|
|
*
|
|
* @param id of the parent device
|
|
* @param part partition to validate
|
|
* @return 0 if partition is valid, 1 otherwise
|
|
*/
|
|
static int part_validate(struct part_info *part)
|
|
{
|
|
|
|
#ifdef CONFIG_ENV_IS_IN_SPI_FLASH
|
|
int env_offset=0;
|
|
|
|
if (part->size == SIZE_REMAINING)
|
|
part->size = flash->size - part->offset;
|
|
|
|
env_offset=ms_get_spi_env_offset();
|
|
|
|
if(0!=strncmp(SF_BOOT,part->name,sizeof(SF_BOOT)-1))
|
|
{
|
|
//Not a reserved region
|
|
if(part->offset < (env_offset+CONFIG_ENV_SIZE))
|
|
{
|
|
printf("partition (%s) offset: 0x%08llx before RESERVED region\n",
|
|
part->name, part->offset);
|
|
return 1;
|
|
}
|
|
|
|
}
|
|
#endif
|
|
if (part->offset > flash->size) {
|
|
printf("partition (%s) offset: 0x%08llx beyond flash size: 0x%08llx\n",
|
|
part->name, part->offset, (long long unsigned)flash->size);
|
|
return 1;
|
|
}
|
|
|
|
if ((part->offset + part->size) <= part->offset) {
|
|
printf("partition (%s) size too big\n", part->name);
|
|
return 1;
|
|
}
|
|
|
|
if (part->offset + part->size > flash->size) {
|
|
printf("partition (%s) offset: 0x%08llx size: 0x%08llx exceeds flash size: 0x%08llx\n", part->name,part->offset,(long long unsigned)part->size,(long long unsigned)flash->size);
|
|
return 1;
|
|
}
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* Parse device type, name and mtd-id. If syntax is ok allocate memory and
|
|
* return pointer to the device structure.
|
|
*
|
|
* @param mtd_dev pointer to the device definition string i.e. <mtd-dev>
|
|
* @param ret output pointer to next char after parse completes (output)
|
|
* @param retdev pointer to the allocated device (output)
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int device_parse(const char *const mtd_dev, const char **ret /*,struct mtd_device **retdev*/)
|
|
{
|
|
// struct mtd_device *dev;
|
|
struct part_info *part;
|
|
const char *mtd_id;
|
|
unsigned int mtd_id_len;
|
|
const char *p;
|
|
// const char *pend;
|
|
|
|
// struct list_head *entry, *n;
|
|
u16 num_parts;
|
|
u64 offset;
|
|
int err = 1;
|
|
|
|
printf("===device_parse===\n");
|
|
|
|
if (ret)
|
|
*ret = NULL;
|
|
|
|
/* fetch <mtd-id> */
|
|
mtd_id = p = mtd_dev;
|
|
if (!(p = strchr(mtd_id, ':'))) {
|
|
printf("no <mtd-id> identifier\n");
|
|
return 1;
|
|
}
|
|
mtd_id_len = p - mtd_id ;
|
|
if(0!=memcmp(mtd_id,flash->name,mtd_id_len))
|
|
{
|
|
printf("Can not found SF: %s\n",flash->name);
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
p++;
|
|
|
|
/* parse partitions */
|
|
num_parts = 0;
|
|
offset = 0;
|
|
|
|
|
|
while (p && (*p != '\0') && (*p != ';')) {
|
|
err = 1;
|
|
if ((part_parse(p, &p, &part) != 0) || (!part))
|
|
break;
|
|
|
|
/* calculate offset when not specified */
|
|
if (part->offset == OFFSET_NOT_SPECIFIED)
|
|
part->offset = offset;
|
|
else
|
|
offset = part->offset;
|
|
|
|
/* verify alignment and size */
|
|
if (part_validate(part) != 0)
|
|
break;
|
|
|
|
offset += part->size;
|
|
|
|
debug("+ partition: name %-22s size 0x%08llx offset 0x%08llx\n",
|
|
part->name, part->size,
|
|
part->offset);
|
|
|
|
|
|
/* partition is ok, add it to the list */
|
|
list_add_tail(&part->link, &sf_part_list);
|
|
num_parts++;
|
|
err = 0;
|
|
}
|
|
if (err == 1) {
|
|
part_delall(&sf_part_list);
|
|
return 1;
|
|
}
|
|
|
|
if (num_parts == 0) {
|
|
printf("no partitions for device %s\n",flash->name);
|
|
return 1;
|
|
}
|
|
|
|
printf("\ntotal partitions: %d\n", num_parts);
|
|
|
|
|
|
printf("===\n\n");
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Accept character string describing mtd partitions and call device_parse()
|
|
* for each entry. Add created devices to the global devices list.
|
|
*
|
|
* @param mtdparts string specifing mtd partitions
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int parse_mtdparts(const char *const mtdparts)
|
|
{
|
|
const char *p = mtdparts;
|
|
int err = 1;
|
|
char tmp_parts[MTDPARTS_MAXLEN];
|
|
|
|
// debug("\n---parse_mtdparts---\nmtdparts = %s\n\n", p);
|
|
//
|
|
// /* delete all devices and partitions */
|
|
// if (mtd_devices_init() != 0) {
|
|
// printf("could not initialise device list\n");
|
|
// return err;
|
|
// }
|
|
|
|
/* re-read 'mtdparts' variable, mtd_devices_init may be updating env */
|
|
if (gd->flags & GD_FLG_ENV_READY) {
|
|
p = getenv("mtdparts");
|
|
} else {
|
|
p = tmp_parts;
|
|
getenv_f("mtdparts", tmp_parts, MTDPARTS_MAXLEN);
|
|
}
|
|
|
|
if (strncmp(p, "mtdparts=", 9) != 0) {
|
|
printf("mtdparts variable doesn't start with 'mtdparts='\n");
|
|
return err;
|
|
}
|
|
p += 9;
|
|
|
|
while (p && (*p != '\0')) {
|
|
err = 1;
|
|
if (device_parse(p, &p) != 0)
|
|
break;
|
|
|
|
err = 0;
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int do_mstar_spi_flash(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
const char *cmd;
|
|
int ret=1;
|
|
char *p, *endp;
|
|
char tmp_parts[MTDPARTS_MAXLEN];
|
|
|
|
unsigned long addr;
|
|
unsigned long offset=0xFFFF0000;
|
|
unsigned long len=0;
|
|
|
|
void *buf;
|
|
|
|
/* need at least two arguments */
|
|
if (argc < 2)
|
|
goto usage;
|
|
|
|
cmd = argv[1];
|
|
|
|
// if (strcmp(cmd, "probe") == 0) {
|
|
// ret = do_spi_flash_probe(argc, argv);
|
|
// goto done;
|
|
// }
|
|
|
|
/* The remaining commands require a selected device */
|
|
if (!flash) {
|
|
puts("No SPI flash selected. Please run `sf probe'\n");
|
|
return 1;
|
|
}
|
|
|
|
{
|
|
struct list_head *pentry;
|
|
char *argv_name=argv[3];
|
|
int printp=0;
|
|
if (strcmp(cmd, "erase") == 0)
|
|
{
|
|
argv_name=argv[2];
|
|
}
|
|
else if (strcmp(cmd, "print") == 0)
|
|
{
|
|
printp=1;
|
|
}
|
|
|
|
|
|
/* re-read 'mtdparts' variable, mtd_devices_init may be updating env */
|
|
if (gd->flags & GD_FLG_ENV_READY) {
|
|
p = getenv("mtdparts");
|
|
} else {
|
|
p = tmp_parts;
|
|
getenv_f("mtdparts", tmp_parts, MTDPARTS_MAXLEN);
|
|
}
|
|
|
|
if (strncmp(p, "mtdparts=", 9) != 0) {
|
|
printf("mtdparts variable doesn't start with 'mtdparts='\n");
|
|
return 1;
|
|
}
|
|
p += 9;
|
|
|
|
if(0!=parse_mtdparts((const char*)p))
|
|
{
|
|
printf("parse mtdparts string error!! string=%s\n",p);
|
|
return 1;
|
|
}
|
|
|
|
list_for_each(pentry, &sf_part_list) {
|
|
struct part_info *part = list_entry(pentry, struct part_info, link);
|
|
// printf("cmp=%s, %s\n",part->name,argv[2]);
|
|
if(printp)
|
|
{
|
|
printf("+ partition: name %-22s size 0x%08llx offset 0x%08llx\n",
|
|
part->name, part->size,
|
|
part->offset);
|
|
|
|
}
|
|
else if (strcmp(part->name, argv_name) == 0)
|
|
{
|
|
offset=part->offset;
|
|
len=part->size;
|
|
goto PART_FOUND;
|
|
}
|
|
|
|
}
|
|
part_delall(&sf_part_list);
|
|
if(printp)
|
|
{
|
|
//done
|
|
return 0;
|
|
}
|
|
printf("unable to found part %s\n",argv[2]);
|
|
return 1;
|
|
|
|
|
|
}
|
|
|
|
PART_FOUND:
|
|
part_delall(&sf_part_list);
|
|
|
|
// void *buf;
|
|
|
|
|
|
|
|
|
|
if (strcmp(cmd, "read") == 0 || strcmp(cmd, "write") == 0) {
|
|
int read;
|
|
int argv_len;
|
|
|
|
addr=simple_strtoul(argv[2], &endp, 16);
|
|
|
|
if(argc>4)
|
|
{
|
|
argv_len = simple_strtoul(argv[4], &endp, 16);
|
|
len= (len > argv_len )? argv_len : len;
|
|
}
|
|
|
|
buf = map_physmem(addr, len, MAP_WRBACK);
|
|
if (!buf) {
|
|
puts("Failed to map physical memory\n");
|
|
return 1;
|
|
}
|
|
|
|
read = (strcmp(cmd, "read") == 0);
|
|
if (read)
|
|
ret = spi_flash_read(flash, offset, len, buf);
|
|
else
|
|
ret = spi_flash_write(flash, offset, len, buf);
|
|
|
|
unmap_physmem(buf, len);
|
|
printf("SF: %zu bytes @ %#x %s: %s\n", (size_t)len, (u32)offset,
|
|
read ? "Read" : "Written", ret ? "ERROR" : "OK");
|
|
}
|
|
else if (strcmp(cmd, "erase") == 0)
|
|
{
|
|
ret = spi_flash_erase(flash, offset, len);
|
|
}
|
|
else
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
|
|
|
|
|
|
return ret == 0 ? 0 : 1;
|
|
|
|
usage:
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
|
|
|
|
U_BOOT_CMD(
|
|
msf, 5, 1, do_mstar_spi_flash,
|
|
"SPI flash mtdparts sub-system",
|
|
"msf read addr partition len - read `len' bytes starting at\n"
|
|
" `partition' to memory at `addr'\n"
|
|
"msf write addr partition len - write `len' bytes from memory\n"
|
|
" at `addr' to flash at `offset'\n"
|
|
"msf erase partition - erase ` partition'\n"
|
|
"msf print - print parsed ` partition'\n"
|
|
);
|
|
|
|
|
|
#endif
|