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fbf368f176
Numeric return values may cause strange errors line: exit not allowed from main input shell. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Simon Glass <sjg@chromium.org>
1240 lines
31 KiB
C
1240 lines
31 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2003
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* Kyle Harris, kharris@nexus-tech.net
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*/
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#include <common.h>
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#include <blk.h>
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#include <command.h>
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#include <console.h>
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#include <display_options.h>
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#include <memalign.h>
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#include <mmc.h>
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#include <part.h>
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#include <sparse_format.h>
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#include <image-sparse.h>
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static int curr_device = -1;
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static void print_mmcinfo(struct mmc *mmc)
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{
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int i;
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printf("Device: %s\n", mmc->cfg->name);
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printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
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if (IS_SD(mmc)) {
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printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
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printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
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(mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
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(mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
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} else {
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printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xff);
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printf("Name: %c%c%c%c%c%c \n", mmc->cid[0] & 0xff,
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(mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
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(mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff,
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(mmc->cid[2] >> 24));
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}
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printf("Bus Speed: %d\n", mmc->clock);
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#if CONFIG_IS_ENABLED(MMC_VERBOSE)
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printf("Mode: %s\n", mmc_mode_name(mmc->selected_mode));
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mmc_dump_capabilities("card capabilities", mmc->card_caps);
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mmc_dump_capabilities("host capabilities", mmc->host_caps);
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#endif
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printf("Rd Block Len: %d\n", mmc->read_bl_len);
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printf("%s version %d.%d", IS_SD(mmc) ? "SD" : "MMC",
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EXTRACT_SDMMC_MAJOR_VERSION(mmc->version),
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EXTRACT_SDMMC_MINOR_VERSION(mmc->version));
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if (EXTRACT_SDMMC_CHANGE_VERSION(mmc->version) != 0)
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printf(".%d", EXTRACT_SDMMC_CHANGE_VERSION(mmc->version));
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printf("\n");
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printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
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puts("Capacity: ");
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print_size(mmc->capacity, "\n");
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printf("Bus Width: %d-bit%s\n", mmc->bus_width,
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mmc->ddr_mode ? " DDR" : "");
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#if CONFIG_IS_ENABLED(MMC_WRITE)
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puts("Erase Group Size: ");
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print_size(((u64)mmc->erase_grp_size) << 9, "\n");
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#endif
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if (!IS_SD(mmc) && mmc->version >= MMC_VERSION_4_41) {
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bool has_enh = (mmc->part_support & ENHNCD_SUPPORT) != 0;
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bool usr_enh = has_enh && (mmc->part_attr & EXT_CSD_ENH_USR);
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ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
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u8 wp;
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int ret;
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#if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
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puts("HC WP Group Size: ");
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print_size(((u64)mmc->hc_wp_grp_size) << 9, "\n");
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#endif
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puts("User Capacity: ");
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print_size(mmc->capacity_user, usr_enh ? " ENH" : "");
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if (mmc->wr_rel_set & EXT_CSD_WR_DATA_REL_USR)
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puts(" WRREL\n");
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else
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putc('\n');
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if (usr_enh) {
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puts("User Enhanced Start: ");
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print_size(mmc->enh_user_start, "\n");
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puts("User Enhanced Size: ");
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print_size(mmc->enh_user_size, "\n");
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}
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puts("Boot Capacity: ");
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print_size(mmc->capacity_boot, has_enh ? " ENH\n" : "\n");
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puts("RPMB Capacity: ");
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print_size(mmc->capacity_rpmb, has_enh ? " ENH\n" : "\n");
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for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
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bool is_enh = has_enh &&
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(mmc->part_attr & EXT_CSD_ENH_GP(i));
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if (mmc->capacity_gp[i]) {
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printf("GP%i Capacity: ", i+1);
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print_size(mmc->capacity_gp[i],
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is_enh ? " ENH" : "");
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if (mmc->wr_rel_set & EXT_CSD_WR_DATA_REL_GP(i))
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puts(" WRREL\n");
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else
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putc('\n');
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}
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}
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ret = mmc_send_ext_csd(mmc, ext_csd);
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if (ret)
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return;
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wp = ext_csd[EXT_CSD_BOOT_WP_STATUS];
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for (i = 0; i < 2; ++i) {
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printf("Boot area %d is ", i);
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switch (wp & 3) {
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case 0:
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printf("not write protected\n");
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break;
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case 1:
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printf("power on protected\n");
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break;
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case 2:
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printf("permanently protected\n");
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break;
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default:
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printf("in reserved protection state\n");
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break;
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}
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wp >>= 2;
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}
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}
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}
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static struct mmc *__init_mmc_device(int dev, bool force_init,
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enum bus_mode speed_mode)
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{
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struct mmc *mmc;
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mmc = find_mmc_device(dev);
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if (!mmc) {
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printf("no mmc device at slot %x\n", dev);
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return NULL;
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}
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if (!mmc_getcd(mmc))
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force_init = true;
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if (force_init)
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mmc->has_init = 0;
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if (IS_ENABLED(CONFIG_MMC_SPEED_MODE_SET))
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mmc->user_speed_mode = speed_mode;
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if (mmc_init(mmc))
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return NULL;
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#ifdef CONFIG_BLOCK_CACHE
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struct blk_desc *bd = mmc_get_blk_desc(mmc);
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blkcache_invalidate(bd->uclass_id, bd->devnum);
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#endif
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return mmc;
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}
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static struct mmc *init_mmc_device(int dev, bool force_init)
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{
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return __init_mmc_device(dev, force_init, MMC_MODES_END);
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}
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static int do_mmcinfo(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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struct mmc *mmc;
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if (curr_device < 0) {
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if (get_mmc_num() > 0)
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curr_device = 0;
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else {
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puts("No MMC device available\n");
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return CMD_RET_FAILURE;
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}
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}
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mmc = init_mmc_device(curr_device, false);
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if (!mmc)
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return CMD_RET_FAILURE;
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print_mmcinfo(mmc);
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return CMD_RET_SUCCESS;
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}
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#if CONFIG_IS_ENABLED(CMD_MMC_RPMB)
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static int confirm_key_prog(void)
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{
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puts("Warning: Programming authentication key can be done only once !\n"
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" Use this command only if you are sure of what you are doing,\n"
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"Really perform the key programming? <y/N> ");
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if (confirm_yesno())
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return 1;
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puts("Authentication key programming aborted\n");
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return 0;
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}
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static int do_mmcrpmb_key(struct cmd_tbl *cmdtp, int flag,
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int argc, char *const argv[])
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{
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void *key_addr;
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struct mmc *mmc = find_mmc_device(curr_device);
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if (argc != 2)
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return CMD_RET_USAGE;
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key_addr = (void *)hextoul(argv[1], NULL);
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if (!confirm_key_prog())
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return CMD_RET_FAILURE;
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if (mmc_rpmb_set_key(mmc, key_addr)) {
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printf("ERROR - Key already programmed ?\n");
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return CMD_RET_FAILURE;
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}
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return CMD_RET_SUCCESS;
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}
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static int do_mmcrpmb_read(struct cmd_tbl *cmdtp, int flag,
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int argc, char *const argv[])
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{
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u16 blk, cnt;
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void *addr;
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int n;
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void *key_addr = NULL;
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struct mmc *mmc = find_mmc_device(curr_device);
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if (argc < 4)
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return CMD_RET_USAGE;
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addr = (void *)hextoul(argv[1], NULL);
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blk = hextoul(argv[2], NULL);
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cnt = hextoul(argv[3], NULL);
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if (argc == 5)
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key_addr = (void *)hextoul(argv[4], NULL);
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printf("\nMMC RPMB read: dev # %d, block # %d, count %d ... ",
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curr_device, blk, cnt);
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n = mmc_rpmb_read(mmc, addr, blk, cnt, key_addr);
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printf("%d RPMB blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
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if (n != cnt)
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return CMD_RET_FAILURE;
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return CMD_RET_SUCCESS;
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}
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static int do_mmcrpmb_write(struct cmd_tbl *cmdtp, int flag,
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int argc, char *const argv[])
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{
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u16 blk, cnt;
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void *addr;
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int n;
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void *key_addr;
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struct mmc *mmc = find_mmc_device(curr_device);
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if (argc != 5)
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return CMD_RET_USAGE;
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addr = (void *)hextoul(argv[1], NULL);
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blk = hextoul(argv[2], NULL);
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cnt = hextoul(argv[3], NULL);
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key_addr = (void *)hextoul(argv[4], NULL);
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printf("\nMMC RPMB write: dev # %d, block # %d, count %d ... ",
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curr_device, blk, cnt);
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n = mmc_rpmb_write(mmc, addr, blk, cnt, key_addr);
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printf("%d RPMB blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
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if (n != cnt)
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return CMD_RET_FAILURE;
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return CMD_RET_SUCCESS;
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}
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static int do_mmcrpmb_counter(struct cmd_tbl *cmdtp, int flag,
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int argc, char *const argv[])
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{
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unsigned long counter;
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struct mmc *mmc = find_mmc_device(curr_device);
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if (mmc_rpmb_get_counter(mmc, &counter))
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return CMD_RET_FAILURE;
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printf("RPMB Write counter= %lx\n", counter);
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return CMD_RET_SUCCESS;
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}
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static struct cmd_tbl cmd_rpmb[] = {
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U_BOOT_CMD_MKENT(key, 2, 0, do_mmcrpmb_key, "", ""),
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U_BOOT_CMD_MKENT(read, 5, 1, do_mmcrpmb_read, "", ""),
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U_BOOT_CMD_MKENT(write, 5, 0, do_mmcrpmb_write, "", ""),
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U_BOOT_CMD_MKENT(counter, 1, 1, do_mmcrpmb_counter, "", ""),
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};
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static int do_mmcrpmb(struct cmd_tbl *cmdtp, int flag,
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int argc, char *const argv[])
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{
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struct cmd_tbl *cp;
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struct mmc *mmc;
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char original_part;
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int ret;
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cp = find_cmd_tbl(argv[1], cmd_rpmb, ARRAY_SIZE(cmd_rpmb));
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/* Drop the rpmb subcommand */
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argc--;
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argv++;
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if (cp == NULL || argc > cp->maxargs)
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return CMD_RET_USAGE;
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if (flag == CMD_FLAG_REPEAT && !cmd_is_repeatable(cp))
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return CMD_RET_SUCCESS;
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mmc = init_mmc_device(curr_device, false);
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if (!mmc)
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return CMD_RET_FAILURE;
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if (!(mmc->version & MMC_VERSION_MMC)) {
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printf("It is not an eMMC device\n");
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return CMD_RET_FAILURE;
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}
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if (mmc->version < MMC_VERSION_4_41) {
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printf("RPMB not supported before version 4.41\n");
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return CMD_RET_FAILURE;
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}
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/* Switch to the RPMB partition */
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#ifndef CONFIG_BLK
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original_part = mmc->block_dev.hwpart;
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#else
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original_part = mmc_get_blk_desc(mmc)->hwpart;
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#endif
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if (blk_select_hwpart_devnum(UCLASS_MMC, curr_device, MMC_PART_RPMB) !=
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0)
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return CMD_RET_FAILURE;
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ret = cp->cmd(cmdtp, flag, argc, argv);
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/* Return to original partition */
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if (blk_select_hwpart_devnum(UCLASS_MMC, curr_device, original_part) !=
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0)
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return CMD_RET_FAILURE;
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return ret;
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}
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#endif
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static int do_mmc_read(struct cmd_tbl *cmdtp, int flag,
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int argc, char *const argv[])
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{
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struct mmc *mmc;
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u32 blk, cnt, n;
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void *addr;
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if (argc != 4)
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return CMD_RET_USAGE;
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addr = (void *)hextoul(argv[1], NULL);
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blk = hextoul(argv[2], NULL);
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cnt = hextoul(argv[3], NULL);
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mmc = init_mmc_device(curr_device, false);
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if (!mmc)
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return CMD_RET_FAILURE;
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printf("\nMMC read: dev # %d, block # %d, count %d ... ",
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curr_device, blk, cnt);
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n = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, addr);
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printf("%d blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
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return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
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}
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#if CONFIG_IS_ENABLED(CMD_MMC_SWRITE)
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static lbaint_t mmc_sparse_write(struct sparse_storage *info, lbaint_t blk,
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lbaint_t blkcnt, const void *buffer)
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{
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struct blk_desc *dev_desc = info->priv;
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return blk_dwrite(dev_desc, blk, blkcnt, buffer);
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}
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static lbaint_t mmc_sparse_reserve(struct sparse_storage *info,
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lbaint_t blk, lbaint_t blkcnt)
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{
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return blkcnt;
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}
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static int do_mmc_sparse_write(struct cmd_tbl *cmdtp, int flag,
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int argc, char *const argv[])
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{
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struct sparse_storage sparse;
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struct blk_desc *dev_desc;
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struct mmc *mmc;
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char dest[11];
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void *addr;
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u32 blk;
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if (argc != 3)
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return CMD_RET_USAGE;
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addr = (void *)hextoul(argv[1], NULL);
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blk = hextoul(argv[2], NULL);
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if (!is_sparse_image(addr)) {
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printf("Not a sparse image\n");
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return CMD_RET_FAILURE;
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}
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mmc = init_mmc_device(curr_device, false);
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if (!mmc)
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return CMD_RET_FAILURE;
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printf("\nMMC Sparse write: dev # %d, block # %d ... ",
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curr_device, blk);
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if (mmc_getwp(mmc) == 1) {
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printf("Error: card is write protected!\n");
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return CMD_RET_FAILURE;
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}
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dev_desc = mmc_get_blk_desc(mmc);
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sparse.priv = dev_desc;
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sparse.blksz = 512;
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sparse.start = blk;
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sparse.size = dev_desc->lba - blk;
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sparse.write = mmc_sparse_write;
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sparse.reserve = mmc_sparse_reserve;
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sparse.mssg = NULL;
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sprintf(dest, "0x" LBAF, sparse.start * sparse.blksz);
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if (write_sparse_image(&sparse, dest, addr, NULL))
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return CMD_RET_FAILURE;
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else
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return CMD_RET_SUCCESS;
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}
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#endif
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#if CONFIG_IS_ENABLED(MMC_WRITE)
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static int do_mmc_write(struct cmd_tbl *cmdtp, int flag,
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int argc, char *const argv[])
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{
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struct mmc *mmc;
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u32 blk, cnt, n;
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void *addr;
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if (argc != 4)
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return CMD_RET_USAGE;
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addr = (void *)hextoul(argv[1], NULL);
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blk = hextoul(argv[2], NULL);
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cnt = hextoul(argv[3], NULL);
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mmc = init_mmc_device(curr_device, false);
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if (!mmc)
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return CMD_RET_FAILURE;
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printf("\nMMC write: dev # %d, block # %d, count %d ... ",
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curr_device, blk, cnt);
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if (mmc_getwp(mmc) == 1) {
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printf("Error: card is write protected!\n");
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return CMD_RET_FAILURE;
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}
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n = blk_dwrite(mmc_get_blk_desc(mmc), blk, cnt, addr);
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printf("%d blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
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return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
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}
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static int do_mmc_erase(struct cmd_tbl *cmdtp, int flag,
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int argc, char *const argv[])
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{
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struct mmc *mmc;
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u32 blk, cnt, n;
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if (argc != 3)
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return CMD_RET_USAGE;
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blk = hextoul(argv[1], NULL);
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cnt = hextoul(argv[2], NULL);
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mmc = init_mmc_device(curr_device, false);
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if (!mmc)
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return CMD_RET_FAILURE;
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printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
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curr_device, blk, cnt);
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|
|
if (mmc_getwp(mmc) == 1) {
|
|
printf("Error: card is write protected!\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
n = blk_derase(mmc_get_blk_desc(mmc), blk, cnt);
|
|
printf("%d blocks erased: %s\n", n, (n == cnt) ? "OK" : "ERROR");
|
|
|
|
return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
|
|
}
|
|
#endif
|
|
|
|
static int do_mmc_rescan(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char *const argv[])
|
|
{
|
|
struct mmc *mmc;
|
|
|
|
if (argc == 1) {
|
|
mmc = init_mmc_device(curr_device, true);
|
|
} else if (argc == 2) {
|
|
enum bus_mode speed_mode;
|
|
|
|
speed_mode = (int)dectoul(argv[1], NULL);
|
|
mmc = __init_mmc_device(curr_device, true, speed_mode);
|
|
} else {
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
if (!mmc)
|
|
return CMD_RET_FAILURE;
|
|
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
static int do_mmc_part(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char *const argv[])
|
|
{
|
|
struct blk_desc *mmc_dev;
|
|
struct mmc *mmc;
|
|
|
|
mmc = init_mmc_device(curr_device, false);
|
|
if (!mmc)
|
|
return CMD_RET_FAILURE;
|
|
|
|
mmc_dev = blk_get_devnum_by_uclass_id(UCLASS_MMC, curr_device);
|
|
if (mmc_dev != NULL && mmc_dev->type != DEV_TYPE_UNKNOWN) {
|
|
part_print(mmc_dev);
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
puts("get mmc type error!\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
static int do_mmc_dev(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char *const argv[])
|
|
{
|
|
int dev, part = 0, ret;
|
|
struct mmc *mmc;
|
|
|
|
if (argc == 1) {
|
|
dev = curr_device;
|
|
mmc = init_mmc_device(dev, true);
|
|
} else if (argc == 2) {
|
|
dev = (int)dectoul(argv[1], NULL);
|
|
mmc = init_mmc_device(dev, true);
|
|
} else if (argc == 3) {
|
|
dev = (int)dectoul(argv[1], NULL);
|
|
part = (int)dectoul(argv[2], NULL);
|
|
if (part > PART_ACCESS_MASK) {
|
|
printf("#part_num shouldn't be larger than %d\n",
|
|
PART_ACCESS_MASK);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
mmc = init_mmc_device(dev, true);
|
|
} else if (argc == 4) {
|
|
enum bus_mode speed_mode;
|
|
|
|
dev = (int)dectoul(argv[1], NULL);
|
|
part = (int)dectoul(argv[2], NULL);
|
|
if (part > PART_ACCESS_MASK) {
|
|
printf("#part_num shouldn't be larger than %d\n",
|
|
PART_ACCESS_MASK);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
speed_mode = (int)dectoul(argv[3], NULL);
|
|
mmc = __init_mmc_device(dev, true, speed_mode);
|
|
} else {
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
if (!mmc)
|
|
return CMD_RET_FAILURE;
|
|
|
|
ret = blk_select_hwpart_devnum(UCLASS_MMC, dev, part);
|
|
printf("switch to partitions #%d, %s\n",
|
|
part, (!ret) ? "OK" : "ERROR");
|
|
if (ret)
|
|
return 1;
|
|
|
|
curr_device = dev;
|
|
if (mmc->part_config == MMCPART_NOAVAILABLE)
|
|
printf("mmc%d is current device\n", curr_device);
|
|
else
|
|
printf("mmc%d(part %d) is current device\n",
|
|
curr_device, mmc_get_blk_desc(mmc)->hwpart);
|
|
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
static int do_mmc_list(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char *const argv[])
|
|
{
|
|
print_mmc_devices('\n');
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
#if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
|
|
static void parse_hwpart_user_enh_size(struct mmc *mmc,
|
|
struct mmc_hwpart_conf *pconf,
|
|
char *argv)
|
|
{
|
|
int i, ret;
|
|
|
|
pconf->user.enh_size = 0;
|
|
|
|
if (!strcmp(argv, "-")) { /* The rest of eMMC */
|
|
ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
|
|
ret = mmc_send_ext_csd(mmc, ext_csd);
|
|
if (ret)
|
|
return;
|
|
/* The enh_size value is in 512B block units */
|
|
pconf->user.enh_size =
|
|
((ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT + 2] << 16) +
|
|
(ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT + 1] << 8) +
|
|
ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT]) * 1024 *
|
|
ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] *
|
|
ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
|
|
pconf->user.enh_size -= pconf->user.enh_start;
|
|
for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
|
|
/*
|
|
* If the eMMC already has GP partitions set,
|
|
* subtract their size from the maximum USER
|
|
* partition size.
|
|
*
|
|
* Else, if the command was used to configure new
|
|
* GP partitions, subtract their size from maximum
|
|
* USER partition size.
|
|
*/
|
|
if (mmc->capacity_gp[i]) {
|
|
/* The capacity_gp is in 1B units */
|
|
pconf->user.enh_size -= mmc->capacity_gp[i] >> 9;
|
|
} else if (pconf->gp_part[i].size) {
|
|
/* The gp_part[].size is in 512B units */
|
|
pconf->user.enh_size -= pconf->gp_part[i].size;
|
|
}
|
|
}
|
|
} else {
|
|
pconf->user.enh_size = dectoul(argv, NULL);
|
|
}
|
|
}
|
|
|
|
static int parse_hwpart_user(struct mmc *mmc, struct mmc_hwpart_conf *pconf,
|
|
int argc, char *const argv[])
|
|
{
|
|
int i = 0;
|
|
|
|
memset(&pconf->user, 0, sizeof(pconf->user));
|
|
|
|
while (i < argc) {
|
|
if (!strcmp(argv[i], "enh")) {
|
|
if (i + 2 >= argc)
|
|
return -1;
|
|
pconf->user.enh_start =
|
|
dectoul(argv[i + 1], NULL);
|
|
parse_hwpart_user_enh_size(mmc, pconf, argv[i + 2]);
|
|
i += 3;
|
|
} else if (!strcmp(argv[i], "wrrel")) {
|
|
if (i + 1 >= argc)
|
|
return -1;
|
|
pconf->user.wr_rel_change = 1;
|
|
if (!strcmp(argv[i+1], "on"))
|
|
pconf->user.wr_rel_set = 1;
|
|
else if (!strcmp(argv[i+1], "off"))
|
|
pconf->user.wr_rel_set = 0;
|
|
else
|
|
return -1;
|
|
i += 2;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static int parse_hwpart_gp(struct mmc_hwpart_conf *pconf, int pidx,
|
|
int argc, char *const argv[])
|
|
{
|
|
int i;
|
|
|
|
memset(&pconf->gp_part[pidx], 0, sizeof(pconf->gp_part[pidx]));
|
|
|
|
if (1 >= argc)
|
|
return -1;
|
|
pconf->gp_part[pidx].size = dectoul(argv[0], NULL);
|
|
|
|
i = 1;
|
|
while (i < argc) {
|
|
if (!strcmp(argv[i], "enh")) {
|
|
pconf->gp_part[pidx].enhanced = 1;
|
|
i += 1;
|
|
} else if (!strcmp(argv[i], "wrrel")) {
|
|
if (i + 1 >= argc)
|
|
return -1;
|
|
pconf->gp_part[pidx].wr_rel_change = 1;
|
|
if (!strcmp(argv[i+1], "on"))
|
|
pconf->gp_part[pidx].wr_rel_set = 1;
|
|
else if (!strcmp(argv[i+1], "off"))
|
|
pconf->gp_part[pidx].wr_rel_set = 0;
|
|
else
|
|
return -1;
|
|
i += 2;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static int do_mmc_hwpartition(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char *const argv[])
|
|
{
|
|
struct mmc *mmc;
|
|
struct mmc_hwpart_conf pconf = { };
|
|
enum mmc_hwpart_conf_mode mode = MMC_HWPART_CONF_CHECK;
|
|
int i, r, pidx;
|
|
|
|
mmc = init_mmc_device(curr_device, false);
|
|
if (!mmc)
|
|
return CMD_RET_FAILURE;
|
|
|
|
if (IS_SD(mmc)) {
|
|
puts("SD doesn't support partitioning\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
if (argc < 1)
|
|
return CMD_RET_USAGE;
|
|
i = 1;
|
|
while (i < argc) {
|
|
if (!strcmp(argv[i], "user")) {
|
|
i++;
|
|
r = parse_hwpart_user(mmc, &pconf, argc - i, &argv[i]);
|
|
if (r < 0)
|
|
return CMD_RET_USAGE;
|
|
i += r;
|
|
} else if (!strncmp(argv[i], "gp", 2) &&
|
|
strlen(argv[i]) == 3 &&
|
|
argv[i][2] >= '1' && argv[i][2] <= '4') {
|
|
pidx = argv[i][2] - '1';
|
|
i++;
|
|
r = parse_hwpart_gp(&pconf, pidx, argc-i, &argv[i]);
|
|
if (r < 0)
|
|
return CMD_RET_USAGE;
|
|
i += r;
|
|
} else if (!strcmp(argv[i], "check")) {
|
|
mode = MMC_HWPART_CONF_CHECK;
|
|
i++;
|
|
} else if (!strcmp(argv[i], "set")) {
|
|
mode = MMC_HWPART_CONF_SET;
|
|
i++;
|
|
} else if (!strcmp(argv[i], "complete")) {
|
|
mode = MMC_HWPART_CONF_COMPLETE;
|
|
i++;
|
|
} else {
|
|
return CMD_RET_USAGE;
|
|
}
|
|
}
|
|
|
|
puts("Partition configuration:\n");
|
|
if (pconf.user.enh_size) {
|
|
puts("\tUser Enhanced Start: ");
|
|
print_size(((u64)pconf.user.enh_start) << 9, "\n");
|
|
puts("\tUser Enhanced Size: ");
|
|
print_size(((u64)pconf.user.enh_size) << 9, "\n");
|
|
} else {
|
|
puts("\tNo enhanced user data area\n");
|
|
}
|
|
if (pconf.user.wr_rel_change)
|
|
printf("\tUser partition write reliability: %s\n",
|
|
pconf.user.wr_rel_set ? "on" : "off");
|
|
for (pidx = 0; pidx < 4; pidx++) {
|
|
if (pconf.gp_part[pidx].size) {
|
|
printf("\tGP%i Capacity: ", pidx+1);
|
|
print_size(((u64)pconf.gp_part[pidx].size) << 9,
|
|
pconf.gp_part[pidx].enhanced ?
|
|
" ENH\n" : "\n");
|
|
} else {
|
|
printf("\tNo GP%i partition\n", pidx+1);
|
|
}
|
|
if (pconf.gp_part[pidx].wr_rel_change)
|
|
printf("\tGP%i write reliability: %s\n", pidx+1,
|
|
pconf.gp_part[pidx].wr_rel_set ? "on" : "off");
|
|
}
|
|
|
|
if (!mmc_hwpart_config(mmc, &pconf, mode)) {
|
|
if (mode == MMC_HWPART_CONF_COMPLETE)
|
|
puts("Partitioning successful, "
|
|
"power-cycle to make effective\n");
|
|
return CMD_RET_SUCCESS;
|
|
} else {
|
|
puts("Failed!\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_SUPPORT_EMMC_BOOT
|
|
static int do_mmc_bootbus(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char *const argv[])
|
|
{
|
|
int dev;
|
|
struct mmc *mmc;
|
|
u8 width, reset, mode;
|
|
|
|
if (argc != 5)
|
|
return CMD_RET_USAGE;
|
|
dev = dectoul(argv[1], NULL);
|
|
width = dectoul(argv[2], NULL);
|
|
reset = dectoul(argv[3], NULL);
|
|
mode = dectoul(argv[4], NULL);
|
|
|
|
mmc = init_mmc_device(dev, false);
|
|
if (!mmc)
|
|
return CMD_RET_FAILURE;
|
|
|
|
if (IS_SD(mmc)) {
|
|
puts("BOOT_BUS_WIDTH only exists on eMMC\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
/*
|
|
* BOOT_BUS_CONDITIONS[177]
|
|
* BOOT_MODE[4:3]
|
|
* 0x0 : Use SDR + Backward compatible timing in boot operation
|
|
* 0x1 : Use SDR + High Speed Timing in boot operation mode
|
|
* 0x2 : Use DDR in boot operation
|
|
* RESET_BOOT_BUS_CONDITIONS
|
|
* 0x0 : Reset bus width to x1, SDR, Backward compatible
|
|
* 0x1 : Retain BOOT_BUS_WIDTH and BOOT_MODE
|
|
* BOOT_BUS_WIDTH
|
|
* 0x0 : x1(sdr) or x4 (ddr) buswidth
|
|
* 0x1 : x4(sdr/ddr) buswith
|
|
* 0x2 : x8(sdr/ddr) buswith
|
|
*
|
|
*/
|
|
if (width >= 0x3) {
|
|
printf("boot_bus_width %d is invalid\n", width);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
if (reset >= 0x2) {
|
|
printf("reset_boot_bus_width %d is invalid\n", reset);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
if (mode >= 0x3) {
|
|
printf("reset_boot_bus_width %d is invalid\n", mode);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
/* acknowledge to be sent during boot operation */
|
|
if (mmc_set_boot_bus_width(mmc, width, reset, mode)) {
|
|
puts("BOOT_BUS_WIDTH is failed to change.\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
printf("Set to BOOT_BUS_WIDTH = 0x%x, RESET = 0x%x, BOOT_MODE = 0x%x\n",
|
|
width, reset, mode);
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
static int do_mmc_boot_resize(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char *const argv[])
|
|
{
|
|
int dev;
|
|
struct mmc *mmc;
|
|
u32 bootsize, rpmbsize;
|
|
|
|
if (argc != 4)
|
|
return CMD_RET_USAGE;
|
|
dev = dectoul(argv[1], NULL);
|
|
bootsize = dectoul(argv[2], NULL);
|
|
rpmbsize = dectoul(argv[3], NULL);
|
|
|
|
mmc = init_mmc_device(dev, false);
|
|
if (!mmc)
|
|
return CMD_RET_FAILURE;
|
|
|
|
if (IS_SD(mmc)) {
|
|
printf("It is not an eMMC device\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
if (mmc_boot_partition_size_change(mmc, bootsize, rpmbsize)) {
|
|
printf("EMMC boot partition Size change Failed.\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
printf("EMMC boot partition Size %d MB\n", bootsize);
|
|
printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
static int mmc_partconf_print(struct mmc *mmc, const char *varname)
|
|
{
|
|
u8 ack, access, part;
|
|
|
|
if (mmc->part_config == MMCPART_NOAVAILABLE) {
|
|
printf("No part_config info for ver. 0x%x\n", mmc->version);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
access = EXT_CSD_EXTRACT_PARTITION_ACCESS(mmc->part_config);
|
|
ack = EXT_CSD_EXTRACT_BOOT_ACK(mmc->part_config);
|
|
part = EXT_CSD_EXTRACT_BOOT_PART(mmc->part_config);
|
|
|
|
if(varname)
|
|
env_set_hex(varname, part);
|
|
|
|
printf("EXT_CSD[179], PARTITION_CONFIG:\n"
|
|
"BOOT_ACK: 0x%x\n"
|
|
"BOOT_PARTITION_ENABLE: 0x%x\n"
|
|
"PARTITION_ACCESS: 0x%x\n", ack, part, access);
|
|
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
static int do_mmc_partconf(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char *const argv[])
|
|
{
|
|
int ret, dev;
|
|
struct mmc *mmc;
|
|
u8 ack, part_num, access;
|
|
|
|
if (argc != 2 && argc != 3 && argc != 5)
|
|
return CMD_RET_USAGE;
|
|
|
|
dev = dectoul(argv[1], NULL);
|
|
|
|
mmc = init_mmc_device(dev, false);
|
|
if (!mmc)
|
|
return CMD_RET_FAILURE;
|
|
|
|
if (IS_SD(mmc)) {
|
|
puts("PARTITION_CONFIG only exists on eMMC\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
if (argc == 2 || argc == 3)
|
|
return mmc_partconf_print(mmc, argc == 3 ? argv[2] : NULL);
|
|
|
|
ack = dectoul(argv[2], NULL);
|
|
part_num = dectoul(argv[3], NULL);
|
|
access = dectoul(argv[4], NULL);
|
|
|
|
/* acknowledge to be sent during boot operation */
|
|
ret = mmc_set_part_conf(mmc, ack, part_num, access);
|
|
if (ret != 0)
|
|
return CMD_RET_FAILURE;
|
|
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
static int do_mmc_rst_func(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char *const argv[])
|
|
{
|
|
int ret, dev;
|
|
struct mmc *mmc;
|
|
u8 enable;
|
|
|
|
/*
|
|
* Set the RST_n_ENABLE bit of RST_n_FUNCTION
|
|
* The only valid values are 0x0, 0x1 and 0x2 and writing
|
|
* a value of 0x1 or 0x2 sets the value permanently.
|
|
*/
|
|
if (argc != 3)
|
|
return CMD_RET_USAGE;
|
|
|
|
dev = dectoul(argv[1], NULL);
|
|
enable = dectoul(argv[2], NULL);
|
|
|
|
if (enable > 2) {
|
|
puts("Invalid RST_n_ENABLE value\n");
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
mmc = init_mmc_device(dev, false);
|
|
if (!mmc)
|
|
return CMD_RET_FAILURE;
|
|
|
|
if (IS_SD(mmc)) {
|
|
puts("RST_n_FUNCTION only exists on eMMC\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
ret = mmc_set_rst_n_function(mmc, enable);
|
|
if (ret != 0)
|
|
return CMD_RET_FAILURE;
|
|
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
#endif
|
|
static int do_mmc_setdsr(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char *const argv[])
|
|
{
|
|
struct mmc *mmc;
|
|
u32 val;
|
|
int ret;
|
|
|
|
if (argc != 2)
|
|
return CMD_RET_USAGE;
|
|
val = hextoul(argv[1], NULL);
|
|
|
|
mmc = find_mmc_device(curr_device);
|
|
if (!mmc) {
|
|
printf("no mmc device at slot %x\n", curr_device);
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
ret = mmc_set_dsr(mmc, val);
|
|
printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
|
|
if (!ret) {
|
|
mmc->has_init = 0;
|
|
if (mmc_init(mmc))
|
|
return CMD_RET_FAILURE;
|
|
else
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#ifdef CONFIG_CMD_BKOPS_ENABLE
|
|
static int mmc_bkops_common(char *device, bool autobkops, bool enable)
|
|
{
|
|
struct mmc *mmc;
|
|
int dev;
|
|
|
|
dev = dectoul(device, NULL);
|
|
|
|
mmc = init_mmc_device(dev, false);
|
|
if (!mmc)
|
|
return CMD_RET_FAILURE;
|
|
|
|
if (IS_SD(mmc)) {
|
|
puts("BKOPS_EN only exists on eMMC\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
return mmc_set_bkops_enable(mmc, autobkops, enable);
|
|
}
|
|
|
|
static int do_mmc_bkops(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
bool autobkops, enable;
|
|
|
|
if (argc != 4)
|
|
return CMD_RET_USAGE;
|
|
|
|
if (!strcmp(argv[2], "manual"))
|
|
autobkops = false;
|
|
else if (!strcmp(argv[2], "auto"))
|
|
autobkops = true;
|
|
else
|
|
return CMD_RET_FAILURE;
|
|
|
|
if (!strcmp(argv[3], "disable"))
|
|
enable = false;
|
|
else if (!strcmp(argv[3], "enable"))
|
|
enable = true;
|
|
else
|
|
return CMD_RET_FAILURE;
|
|
|
|
return mmc_bkops_common(argv[1], autobkops, enable);
|
|
}
|
|
|
|
static int do_mmc_bkops_enable(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
if (argc != 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
return mmc_bkops_common(argv[1], false, true);
|
|
}
|
|
#endif
|
|
|
|
static int do_mmc_boot_wp(struct cmd_tbl *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
int err;
|
|
struct mmc *mmc;
|
|
int part;
|
|
|
|
mmc = init_mmc_device(curr_device, false);
|
|
if (!mmc)
|
|
return CMD_RET_FAILURE;
|
|
if (IS_SD(mmc)) {
|
|
printf("It is not an eMMC device\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
|
|
if (argc == 2) {
|
|
part = dectoul(argv[1], NULL);
|
|
err = mmc_boot_wp_single_partition(mmc, part);
|
|
} else {
|
|
err = mmc_boot_wp(mmc);
|
|
}
|
|
|
|
if (err)
|
|
return CMD_RET_FAILURE;
|
|
printf("boot areas protected\n");
|
|
return CMD_RET_SUCCESS;
|
|
}
|
|
|
|
static struct cmd_tbl cmd_mmc[] = {
|
|
U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
|
|
U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
|
|
U_BOOT_CMD_MKENT(wp, 2, 0, do_mmc_boot_wp, "", ""),
|
|
#if CONFIG_IS_ENABLED(MMC_WRITE)
|
|
U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""),
|
|
U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""),
|
|
#endif
|
|
#if CONFIG_IS_ENABLED(CMD_MMC_SWRITE)
|
|
U_BOOT_CMD_MKENT(swrite, 3, 0, do_mmc_sparse_write, "", ""),
|
|
#endif
|
|
U_BOOT_CMD_MKENT(rescan, 2, 1, do_mmc_rescan, "", ""),
|
|
U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
|
|
U_BOOT_CMD_MKENT(dev, 4, 0, do_mmc_dev, "", ""),
|
|
U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
|
|
#if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
|
|
U_BOOT_CMD_MKENT(hwpartition, 28, 0, do_mmc_hwpartition, "", ""),
|
|
#endif
|
|
#ifdef CONFIG_SUPPORT_EMMC_BOOT
|
|
U_BOOT_CMD_MKENT(bootbus, 5, 0, do_mmc_bootbus, "", ""),
|
|
U_BOOT_CMD_MKENT(bootpart-resize, 4, 0, do_mmc_boot_resize, "", ""),
|
|
U_BOOT_CMD_MKENT(partconf, 5, 0, do_mmc_partconf, "", ""),
|
|
U_BOOT_CMD_MKENT(rst-function, 3, 0, do_mmc_rst_func, "", ""),
|
|
#endif
|
|
#if CONFIG_IS_ENABLED(CMD_MMC_RPMB)
|
|
U_BOOT_CMD_MKENT(rpmb, CONFIG_SYS_MAXARGS, 1, do_mmcrpmb, "", ""),
|
|
#endif
|
|
U_BOOT_CMD_MKENT(setdsr, 2, 0, do_mmc_setdsr, "", ""),
|
|
#ifdef CONFIG_CMD_BKOPS_ENABLE
|
|
U_BOOT_CMD_MKENT(bkops-enable, 2, 0, do_mmc_bkops_enable, "", ""),
|
|
U_BOOT_CMD_MKENT(bkops, 4, 0, do_mmc_bkops, "", ""),
|
|
#endif
|
|
};
|
|
|
|
static int do_mmcops(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
struct cmd_tbl *cp;
|
|
|
|
cp = find_cmd_tbl(argv[1], cmd_mmc, ARRAY_SIZE(cmd_mmc));
|
|
|
|
/* Drop the mmc command */
|
|
argc--;
|
|
argv++;
|
|
|
|
if (cp == NULL || argc > cp->maxargs)
|
|
return CMD_RET_USAGE;
|
|
if (flag == CMD_FLAG_REPEAT && !cmd_is_repeatable(cp))
|
|
return CMD_RET_SUCCESS;
|
|
|
|
if (curr_device < 0) {
|
|
if (get_mmc_num() > 0) {
|
|
curr_device = 0;
|
|
} else {
|
|
puts("No MMC device available\n");
|
|
return CMD_RET_FAILURE;
|
|
}
|
|
}
|
|
return cp->cmd(cmdtp, flag, argc, argv);
|
|
}
|
|
|
|
U_BOOT_CMD(
|
|
mmc, 29, 1, do_mmcops,
|
|
"MMC sub system",
|
|
"info - display info of the current MMC device\n"
|
|
"mmc read addr blk# cnt\n"
|
|
"mmc write addr blk# cnt\n"
|
|
#if CONFIG_IS_ENABLED(CMD_MMC_SWRITE)
|
|
"mmc swrite addr blk#\n"
|
|
#endif
|
|
"mmc erase blk# cnt\n"
|
|
"mmc rescan [mode]\n"
|
|
"mmc part - lists available partition on current mmc device\n"
|
|
"mmc dev [dev] [part] [mode] - show or set current mmc device [partition] and set mode\n"
|
|
" - the required speed mode is passed as the index from the following list\n"
|
|
" [MMC_LEGACY, MMC_HS, SD_HS, MMC_HS_52, MMC_DDR_52, UHS_SDR12, UHS_SDR25,\n"
|
|
" UHS_SDR50, UHS_DDR50, UHS_SDR104, MMC_HS_200, MMC_HS_400, MMC_HS_400_ES]\n"
|
|
"mmc list - lists available devices\n"
|
|
"mmc wp [PART] - power on write protect boot partitions\n"
|
|
" arguments:\n"
|
|
" PART - [0|1]\n"
|
|
" : 0 - first boot partition, 1 - second boot partition\n"
|
|
" if not assigned, write protect all boot partitions\n"
|
|
#if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
|
|
"mmc hwpartition <USER> <GP> <MODE> - does hardware partitioning\n"
|
|
" arguments (sizes in 512-byte blocks):\n"
|
|
" USER - <user> <enh> <start> <cnt> <wrrel> <{on|off}>\n"
|
|
" : sets user data area attributes\n"
|
|
" GP - <{gp1|gp2|gp3|gp4}> <cnt> <enh> <wrrel> <{on|off}>\n"
|
|
" : general purpose partition\n"
|
|
" MODE - <{check|set|complete}>\n"
|
|
" : mode, complete set partitioning completed\n"
|
|
" WARNING: Partitioning is a write-once setting once it is set to complete.\n"
|
|
" Power cycling is required to initialize partitions after set to complete.\n"
|
|
#endif
|
|
#ifdef CONFIG_SUPPORT_EMMC_BOOT
|
|
"mmc bootbus <dev> <boot_bus_width> <reset_boot_bus_width> <boot_mode>\n"
|
|
" - Set the BOOT_BUS_WIDTH field of the specified device\n"
|
|
"mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
|
|
" - Change sizes of boot and RPMB partitions of specified device\n"
|
|
"mmc partconf <dev> [[varname] | [<boot_ack> <boot_partition> <partition_access>]]\n"
|
|
" - Show or change the bits of the PARTITION_CONFIG field of the specified device\n"
|
|
" If showing the bits, optionally store the boot_partition field into varname\n"
|
|
"mmc rst-function <dev> <value>\n"
|
|
" - Change the RST_n_FUNCTION field of the specified device\n"
|
|
" WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
|
|
#endif
|
|
#if CONFIG_IS_ENABLED(CMD_MMC_RPMB)
|
|
"mmc rpmb read addr blk# cnt [address of auth-key] - block size is 256 bytes\n"
|
|
"mmc rpmb write addr blk# cnt <address of auth-key> - block size is 256 bytes\n"
|
|
"mmc rpmb key <address of auth-key> - program the RPMB authentication key.\n"
|
|
"mmc rpmb counter - read the value of the write counter\n"
|
|
#endif
|
|
"mmc setdsr <value> - set DSR register value\n"
|
|
#ifdef CONFIG_CMD_BKOPS_ENABLE
|
|
"mmc bkops-enable <dev> - enable background operations handshake on device\n"
|
|
" WARNING: This is a write-once setting.\n"
|
|
"mmc bkops <dev> [auto|manual] [enable|disable]\n"
|
|
" - configure background operations handshake on device\n"
|
|
#endif
|
|
);
|
|
|
|
/* Old command kept for compatibility. Same as 'mmc info' */
|
|
U_BOOT_CMD(
|
|
mmcinfo, 1, 0, do_mmcinfo,
|
|
"display MMC info",
|
|
"- display info of the current MMC device"
|
|
);
|