mirror of
https://github.com/AsahiLinux/u-boot
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93bfd61677
The way that struct mmc was implemented was a bit of a mess; configuration and internal state all jumbled up in a single structure. On top of that the way initialization is done with mmc_register leads to a lot of duplicated code in drivers. Typically the initialization got something like this in every driver. struct mmc *mmc = malloc(sizeof(struct mmc)); memset(mmc, 0, sizeof(struct mmc); /* fill in fields of mmc struct */ /* store private data pointer */ mmc_register(mmc); By using the new mmc_create call one just passes an mmc config struct and an optional private data pointer like this: struct mmc = mmc_create(&cfg, priv); All in tree drivers have been updated to the new form, and expect mmc_register to go away before long. Changes since v1: * Use calloc instead of manually calling memset. * Mark mmc_register as deprecated. Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
442 lines
9.8 KiB
C
442 lines
9.8 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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* SPDX-License-Identifier: GPL-2.0+
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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->cfg->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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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 (strcmp(argv[1], "part") == 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 partitions #%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], "partconf") == 0) {
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int dev;
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struct mmc *mmc;
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u8 ack, part_num, access;
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if (argc == 6) {
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dev = simple_strtoul(argv[2], NULL, 10);
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ack = simple_strtoul(argv[3], NULL, 10);
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part_num = simple_strtoul(argv[4], NULL, 10);
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access = simple_strtoul(argv[5], 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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puts("PARTITION_CONFIG only exists on eMMC\n");
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return 1;
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}
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/* acknowledge to be sent during boot operation */
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return mmc_set_part_conf(mmc, ack, part_num, access);
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} else if (strcmp(argv[1], "bootbus") == 0) {
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int dev;
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struct mmc *mmc;
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u8 width, reset, mode;
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if (argc == 6) {
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dev = simple_strtoul(argv[2], NULL, 10);
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width = simple_strtoul(argv[3], NULL, 10);
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reset = simple_strtoul(argv[4], NULL, 10);
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mode = simple_strtoul(argv[5], 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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puts("BOOT_BUS_WIDTH only exists on eMMC\n");
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return 1;
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}
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/* acknowledge to be sent during boot operation */
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return mmc_set_boot_bus_width(mmc, width, reset, mode);
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} else if (strcmp(argv[1], "bootpart-resize") == 0) {
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int dev;
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struct mmc *mmc;
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u32 bootsize, rpmbsize;
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if (argc == 5) {
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dev = simple_strtoul(argv[2], NULL, 10);
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bootsize = simple_strtoul(argv[3], NULL, 10);
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rpmbsize = simple_strtoul(argv[4], 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("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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else if (argc == 3 && strcmp(argv[1], "setdsr") == 0) {
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struct mmc *mmc = find_mmc_device(curr_device);
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u32 val = simple_strtoul(argv[2], NULL, 16);
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int ret;
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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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ret = mmc_set_dsr(mmc, val);
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printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
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if (!ret) {
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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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}
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return ret;
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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 bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
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" - Set the BOOT_BUS_WIDTH field of the specified device\n"
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"mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
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" - Change sizes of boot and RPMB partitions of specified device\n"
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"mmc partconf dev boot_ack boot_partition partition_access\n"
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" - Change the bits of the PARTITION_CONFIG field of the specified device\n"
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#endif
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"mmc setdsr - set DSR register value\n"
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);
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#endif /* !CONFIG_GENERIC_MMC */
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