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.santac...@spinetix.com>
---
common/cmd_mmc.c | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 92 insertions(+), 1 deletions(-)
diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
index 7b7167c..c0a4a3e 100644
--- a/common/cmd_mmc.c
+++ b/common/cmd_mmc.c
@@ -481,6 +481,91 @@ 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[])
@@ -638,6 +723,7 @@ 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, "", ""),
@@ -677,7 +763,7 @@ 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"
@@ -687,6 +773,11 @@ 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"
--
1.7.1
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