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mmc: add mmc hwpartition sub-command to do eMMC hardware partitioning

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Adds the mmc hwpartition sub-command to perform eMMC hardware
partitioning on an mmc device. The number of arguments can be
large for a complex partitioning, but as the partitioning has
to be done in one go it is difficult to make it simpler.

Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com>
This commit is contained in:
Diego Santa Cruz 2014-12-23 10:50:30 +01:00 committed by Pantelis Antoniou
parent ac9da0e08c
commit c599f53b57
1 changed files with 92 additions and 1 deletions
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93
common/cmd_mmc.c
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@ -480,6 +480,91 @@ static int do_mmc_list(cmd_tbl_t *cmdtp, int flag,
print_mmc_devices('\n');
return CMD_RET_SUCCESS;
}
static int do_mmc_hwpartition(cmd_tbl_t *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, pidx;
mmc = init_mmc_device(curr_device, false);
if (!mmc)
return CMD_RET_FAILURE;
if (argc < 1)
return CMD_RET_USAGE;
i = 1;
while (i < argc) {
if (!strcmp(argv[i], "userenh")) {
if (i + 2 >= argc)
return CMD_RET_USAGE;
memset(&pconf.user, 0, sizeof(pconf.user));
pconf.user.enh_start =
simple_strtoul(argv[i+1], NULL, 10);
pconf.user.enh_size =
simple_strtoul(argv[i+2], NULL, 10);
i += 3;
} else if (!strncmp(argv[i], "gp", 2) &&
strlen(argv[i]) == 3 &&
argv[i][2] >= '1' && argv[i][2] <= '4') {
if (i + 1 >= argc)
return CMD_RET_USAGE;
pidx = argv[i][2] - '1';
memset(&pconf.gp_part[pidx], 0,
sizeof(pconf.gp_part[pidx]));
pconf.gp_part[pidx].size =
simple_strtoul(argv[i+1], NULL, 10);
i += 2;
if (i < argc && !strcmp(argv[i], "enh")) {
pconf.gp_part[pidx].enhanced = 1;
i++;
}
} 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");
}
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 (!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 {
return CMD_RET_FAILURE;
}
}
#ifdef CONFIG_SUPPORT_EMMC_BOOT
static int do_mmc_bootbus(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
@ -637,6 +722,7 @@ static cmd_tbl_t cmd_mmc[] = {
U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
U_BOOT_CMD_MKENT(dev, 3, 0, do_mmc_dev, "", ""),
U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
U_BOOT_CMD_MKENT(hwpartition, 17, 0, do_mmc_hwpartition, "", ""),
#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, "", ""),
@ -676,7 +762,7 @@ static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
}
U_BOOT_CMD(
mmc, 7, 1, do_mmcops,
mmc, 18, 1, do_mmcops,
"MMC sub system",
"info - display info of the current MMC device\n"
"mmc read addr blk# cnt\n"
@ -686,6 +772,11 @@ U_BOOT_CMD(
"mmc part - lists available partition on current mmc device\n"
"mmc dev [dev] [part] - show or set current mmc device [partition]\n"
"mmc list - lists available devices\n"
"mmc hwpartition [args...] - does hardware partitioning\n"
" arguments (sizes in 512-byte blocks):\n"
" [userenh start cnt] - sets enhanced user data area\n"
" [gp1|gp2|gp3|gp4 cnt [enh]] - general purpose partition\n"
" [check|set|complete] - mode, complete set partitioning completed\n"
#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"