mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
2a91c91346
This patch adds commands to access(open/close) and resize boot partitions on EMMC. Signed-off-by: Amar <amarendra.xt@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
443 lines
10 KiB
C
443 lines
10 KiB
C
/*
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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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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <mmc.h>
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static int curr_device = -1;
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#ifndef CONFIG_GENERIC_MMC
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int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int dev;
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if (argc < 2)
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return CMD_RET_USAGE;
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if (strcmp(argv[1], "init") == 0) {
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if (argc == 2) {
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if (curr_device < 0)
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dev = 1;
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else
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dev = curr_device;
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} else if (argc == 3) {
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dev = (int)simple_strtoul(argv[2], NULL, 10);
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} else {
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return CMD_RET_USAGE;
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}
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if (mmc_legacy_init(dev) != 0) {
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puts("No MMC card found\n");
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return 1;
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}
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curr_device = dev;
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printf("mmc%d is available\n", curr_device);
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} else if (strcmp(argv[1], "device") == 0) {
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if (argc == 2) {
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if (curr_device < 0) {
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puts("No MMC device available\n");
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return 1;
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}
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} else if (argc == 3) {
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dev = (int)simple_strtoul(argv[2], NULL, 10);
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#ifdef CONFIG_SYS_MMC_SET_DEV
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if (mmc_set_dev(dev) != 0)
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return 1;
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#endif
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curr_device = dev;
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} else {
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return CMD_RET_USAGE;
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}
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printf("mmc%d is current device\n", curr_device);
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} else {
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return CMD_RET_USAGE;
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}
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return 0;
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}
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U_BOOT_CMD(
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mmc, 3, 1, do_mmc,
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"MMC sub-system",
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"init [dev] - init MMC sub system\n"
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"mmc device [dev] - show or set current device"
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);
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#else /* !CONFIG_GENERIC_MMC */
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enum mmc_state {
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MMC_INVALID,
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MMC_READ,
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MMC_WRITE,
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MMC_ERASE,
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};
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static void print_mmcinfo(struct mmc *mmc)
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{
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printf("Device: %s\n", mmc->name);
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printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
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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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printf("Tran Speed: %d\n", mmc->tran_speed);
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printf("Rd Block Len: %d\n", mmc->read_bl_len);
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printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
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(mmc->version >> 8) & 0xf, mmc->version & 0xff);
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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\n", mmc->bus_width);
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}
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static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, 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 1;
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}
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}
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mmc = find_mmc_device(curr_device);
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if (mmc) {
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mmc_init(mmc);
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print_mmcinfo(mmc);
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return 0;
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} else {
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printf("no mmc device at slot %x\n", curr_device);
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return 1;
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}
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}
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U_BOOT_CMD(
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mmcinfo, 1, 0, do_mmcinfo,
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"display MMC info",
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"- display info of the current MMC device"
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);
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#ifdef CONFIG_SUPPORT_EMMC_BOOT
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static int boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access)
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{
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int err;
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err = mmc_boot_part_access(mmc, ack, part_num, access);
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if ((err == 0) && (access != 0)) {
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printf("\t\t\t!!!Notice!!!\n");
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printf("!You must close EMMC boot Partition");
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printf("after all images are written\n");
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printf("!EMMC boot partition has continuity");
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printf("at image writing time.\n");
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printf("!So, do not close the boot partition");
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printf("before all images are written.\n");
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return 0;
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} else if ((err == 0) && (access == 0))
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return 0;
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else if ((err != 0) && (access != 0)) {
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printf("EMMC boot partition-%d OPEN Failed.\n", part_num);
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return 1;
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} else {
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printf("EMMC boot partition-%d CLOSE Failed.\n", part_num);
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return 1;
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}
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}
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#endif
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static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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enum mmc_state state;
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if (argc < 2)
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return CMD_RET_USAGE;
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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 1;
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}
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}
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if (strcmp(argv[1], "rescan") == 0) {
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struct mmc *mmc;
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if (argc != 2)
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return CMD_RET_USAGE;
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mmc = find_mmc_device(curr_device);
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if (!mmc) {
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printf("no mmc device at slot %x\n", curr_device);
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return 1;
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}
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mmc->has_init = 0;
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if (mmc_init(mmc))
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return 1;
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else
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return 0;
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} else if (strncmp(argv[1], "part", 4) == 0) {
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block_dev_desc_t *mmc_dev;
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struct mmc *mmc;
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if (argc != 2)
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return CMD_RET_USAGE;
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mmc = find_mmc_device(curr_device);
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if (!mmc) {
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printf("no mmc device at slot %x\n", curr_device);
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return 1;
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}
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mmc_init(mmc);
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mmc_dev = mmc_get_dev(curr_device);
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if (mmc_dev != NULL &&
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mmc_dev->type != DEV_TYPE_UNKNOWN) {
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print_part(mmc_dev);
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return 0;
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}
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puts("get mmc type error!\n");
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return 1;
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} else if (strcmp(argv[1], "list") == 0) {
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if (argc != 2)
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return CMD_RET_USAGE;
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print_mmc_devices('\n');
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return 0;
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} else if (strcmp(argv[1], "dev") == 0) {
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int dev, part = -1;
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struct mmc *mmc;
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if (argc == 2)
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dev = curr_device;
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else if (argc == 3)
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dev = simple_strtoul(argv[2], NULL, 10);
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else if (argc == 4) {
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dev = (int)simple_strtoul(argv[2], NULL, 10);
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part = (int)simple_strtoul(argv[3], NULL, 10);
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if (part > PART_ACCESS_MASK) {
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printf("#part_num shouldn't be larger"
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" than %d\n", PART_ACCESS_MASK);
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return 1;
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}
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} else
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return CMD_RET_USAGE;
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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 1;
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}
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mmc_init(mmc);
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if (part != -1) {
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int ret;
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if (mmc->part_config == MMCPART_NOAVAILABLE) {
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printf("Card doesn't support part_switch\n");
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return 1;
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}
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if (part != mmc->part_num) {
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ret = mmc_switch_part(dev, part);
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if (!ret)
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mmc->part_num = part;
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printf("switch to partions #%d, %s\n",
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part, (!ret) ? "OK" : "ERROR");
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}
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}
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curr_device = dev;
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if (mmc->part_config == MMCPART_NOAVAILABLE)
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printf("mmc%d is current device\n", curr_device);
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else
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printf("mmc%d(part %d) is current device\n",
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curr_device, mmc->part_num);
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return 0;
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#ifdef CONFIG_SUPPORT_EMMC_BOOT
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} else if ((strcmp(argv[1], "open") == 0) ||
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(strcmp(argv[1], "close") == 0)) {
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int dev;
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struct mmc *mmc;
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u8 part_num, access = 0;
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if (argc == 4) {
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dev = simple_strtoul(argv[2], NULL, 10);
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part_num = simple_strtoul(argv[3], NULL, 10);
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} else {
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return CMD_RET_USAGE;
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}
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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 1;
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}
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if (IS_SD(mmc)) {
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printf("SD device cannot be opened/closed\n");
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return 1;
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}
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if ((part_num <= 0) || (part_num > MMC_NUM_BOOT_PARTITION)) {
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printf("Invalid boot partition number:\n");
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printf("Boot partition number cannot be <= 0\n");
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printf("EMMC44 supports only 2 boot partitions\n");
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return 1;
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}
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if (strcmp(argv[1], "open") == 0)
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access = part_num; /* enable R/W access to boot part*/
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else
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access = 0; /* No access to boot partition */
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/* acknowledge to be sent during boot operation */
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return boot_part_access(mmc, 1, part_num, access);
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} else if (strcmp(argv[1], "bootpart") == 0) {
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int dev;
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dev = simple_strtoul(argv[2], NULL, 10);
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u32 bootsize = simple_strtoul(argv[3], NULL, 10);
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u32 rpmbsize = simple_strtoul(argv[4], NULL, 10);
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struct mmc *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 1;
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}
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if (IS_SD(mmc)) {
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printf("It is not a EMMC device\n");
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return 1;
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}
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if (0 == mmc_boot_partition_size_change(mmc,
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bootsize, rpmbsize)) {
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printf("EMMC boot partition Size %d MB\n", bootsize);
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printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
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return 0;
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} else {
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printf("EMMC boot partition Size change Failed.\n");
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return 1;
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}
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#endif /* CONFIG_SUPPORT_EMMC_BOOT */
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}
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state = MMC_INVALID;
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if (argc == 5 && strcmp(argv[1], "read") == 0)
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state = MMC_READ;
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else if (argc == 5 && strcmp(argv[1], "write") == 0)
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state = MMC_WRITE;
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else if (argc == 4 && strcmp(argv[1], "erase") == 0)
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state = MMC_ERASE;
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if (state != MMC_INVALID) {
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struct mmc *mmc = find_mmc_device(curr_device);
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int idx = 2;
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u32 blk, cnt, n;
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void *addr;
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if (state != MMC_ERASE) {
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addr = (void *)simple_strtoul(argv[idx], NULL, 16);
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++idx;
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} else
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addr = NULL;
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blk = simple_strtoul(argv[idx], NULL, 16);
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cnt = simple_strtoul(argv[idx + 1], NULL, 16);
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if (!mmc) {
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printf("no mmc device at slot %x\n", curr_device);
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return 1;
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}
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printf("\nMMC %s: dev # %d, block # %d, count %d ... ",
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argv[1], curr_device, blk, cnt);
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mmc_init(mmc);
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if ((state == MMC_WRITE || state == MMC_ERASE)) {
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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 1;
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}
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}
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switch (state) {
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case MMC_READ:
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n = mmc->block_dev.block_read(curr_device, blk,
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cnt, addr);
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/* flush cache after read */
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flush_cache((ulong)addr, cnt * 512); /* FIXME */
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break;
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case MMC_WRITE:
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n = mmc->block_dev.block_write(curr_device, blk,
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cnt, addr);
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break;
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case MMC_ERASE:
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n = mmc->block_dev.block_erase(curr_device, blk, cnt);
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break;
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default:
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BUG();
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}
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printf("%d blocks %s: %s\n",
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n, argv[1], (n == cnt) ? "OK" : "ERROR");
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return (n == cnt) ? 0 : 1;
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}
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return CMD_RET_USAGE;
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}
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U_BOOT_CMD(
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mmc, 6, 1, do_mmcops,
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"MMC sub system",
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"read addr blk# cnt\n"
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"mmc write addr blk# cnt\n"
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"mmc erase blk# cnt\n"
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"mmc rescan\n"
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"mmc part - lists available partition on current mmc device\n"
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"mmc dev [dev] [part] - show or set current mmc device [partition]\n"
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"mmc list - lists available devices\n"
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#ifdef CONFIG_SUPPORT_EMMC_BOOT
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"mmc open <dev> <boot_partition>\n"
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" - Enable boot_part for booting and enable R/W access of boot_part\n"
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"mmc close <dev> <boot_partition>\n"
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" - Enable boot_part for booting and disable access to boot_part\n"
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"mmc bootpart <device num> <boot part size MB> <RPMB part size MB>\n"
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" - change sizes of boot and RPMB partions of specified device\n"
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#endif
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);
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#endif /* !CONFIG_GENERIC_MMC */
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