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![Minkyu Kang](/assets/img/avatar_default.png)
This patch improves device command for selecting mmc device Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
226 lines
5.1 KiB
C
226 lines
5.1 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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#ifndef CONFIG_GENERIC_MMC
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int curr_device = -1;
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int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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int dev;
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if (argc < 2) {
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cmd_usage(cmdtp);
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return 1;
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}
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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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cmd_usage(cmdtp);
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return 1;
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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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cmd_usage(cmdtp);
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return 1;
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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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cmd_usage(cmdtp);
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return 1;
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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\n"
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);
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#else /* !CONFIG_GENERIC_MMC */
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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 >> 4) & 0xf, mmc->version & 0xf);
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printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
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printf("Capacity: %lld\n", mmc->capacity);
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printf("Bus Width: %d-bit\n", mmc->bus_width);
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}
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int do_mmcinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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struct mmc *mmc;
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int dev_num;
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if (argc < 2)
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dev_num = 0;
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else
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dev_num = simple_strtoul(argv[1], NULL, 0);
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mmc = find_mmc_device(dev_num);
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if (mmc) {
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mmc_init(mmc);
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print_mmcinfo(mmc);
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}
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return 0;
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}
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U_BOOT_CMD(mmcinfo, 2, 0, do_mmcinfo, "mmcinfo <dev num>-- display MMC info\n",
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NULL);
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int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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int rc = 0;
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switch (argc) {
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case 3:
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if (strcmp(argv[1], "rescan") == 0) {
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int dev = simple_strtoul(argv[2], NULL, 10);
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struct mmc *mmc = find_mmc_device(dev);
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mmc_init(mmc);
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return 0;
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}
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case 0:
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case 1:
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case 4:
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printf("Usage:\n%s\n", cmdtp->usage);
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return 1;
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case 2:
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if (!strcmp(argv[1], "list")) {
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print_mmc_devices('\n');
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return 0;
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}
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return 1;
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default: /* at least 5 args */
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if (strcmp(argv[1], "read") == 0) {
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int dev = simple_strtoul(argv[2], NULL, 10);
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void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
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u32 cnt = simple_strtoul(argv[5], NULL, 16);
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u32 n;
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u32 blk = simple_strtoul(argv[4], NULL, 16);
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struct mmc *mmc = find_mmc_device(dev);
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printf("\nMMC read: dev # %d, block # %d, count %d ... ",
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dev, blk, cnt);
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mmc_init(mmc);
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n = mmc->block_dev.block_read(dev, blk, 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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printf("%d blocks read: %s\n",
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n, (n==cnt) ? "OK" : "ERROR");
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return (n == cnt) ? 0 : 1;
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} else if (strcmp(argv[1], "write") == 0) {
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int dev = simple_strtoul(argv[2], NULL, 10);
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void *addr = (void *)simple_strtoul(argv[3], NULL, 16);
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u32 cnt = simple_strtoul(argv[5], NULL, 16);
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u32 n;
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struct mmc *mmc = find_mmc_device(dev);
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int blk = simple_strtoul(argv[4], NULL, 16);
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printf("\nMMC write: dev # %d, block # %d, count %d ... ",
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dev, blk, cnt);
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mmc_init(mmc);
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n = mmc->block_dev.block_write(dev, blk, cnt, addr);
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printf("%d blocks written: %s\n",
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n, (n == cnt) ? "OK" : "ERROR");
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return (n == cnt) ? 0 : 1;
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} else {
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printf("Usage:\n%s\n", cmdtp->usage);
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rc = 1;
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}
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return rc;
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}
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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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"mmc read <device num> addr blk# cnt\n"
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"mmc write <device num> addr blk# cnt\n"
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"mmc rescan <device num>\n"
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"mmc list - lists available devices\n");
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#endif
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