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mmc: cmd: add mmc mac command to generate mac from mmc (ethaddr, eth1addr)

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hayzamjs 2024-05-20 16:40:36 +05:30
parent c5b92986b5
commit 1fbf0261fc
Signed by: hayzam
GPG key ID: 13B4C5B544B53947
2 changed files with 55 additions and 0 deletions
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6
cmd/Kconfig
View file

@ -1288,6 +1288,12 @@ config CMD_MMC_REG
Enable the commands for reading card registers. This is useful Enable the commands for reading card registers. This is useful
mostly for debugging or extracting details from the card. mostly for debugging or extracting details from the card.
config CMD_MMC_MAC
bool "Enable support for creating a mac from the mmc command"
depends on CMD_MMC
help
Enable the commands for creating a mac from the emmc card.
config CMD_MMC_RPMB config CMD_MMC_RPMB
bool "Enable support for RPMB in the mmc command" bool "Enable support for RPMB in the mmc command"
depends on SUPPORT_EMMC_RPMB depends on SUPPORT_EMMC_RPMB

49
cmd/mmc.c
View file

@ -1198,6 +1198,49 @@ static int do_mmc_reg(struct cmd_tbl *cmdtp, int flag,
} }
#endif #endif
#if CONFIG_IS_ENABLED(CMD_MMC_MAC)
static int do_mac_mmc(struct cmd_tbl *cmdtp, int flag,
int argc, char *const argv[])
{
struct mmc *mmc;
u8 mac[6], mac1[6];
int i;
mmc = init_mmc_device(curr_device, false);
u64 cid = ((u64)mmc->cid[2] << 32) | mmc->cid[3];
mac[0] = (cid >> 40) & 0xfe;
mac[1] = (cid >> 32) & 0xff;
mac[2] = (cid >> 24) & 0xff;
mac[3] = (cid >> 16) & 0xff;
mac[4] = (cid >> 8) & 0xff;
mac[5] = cid & 0xff;
for (i = 0; i < 6; i++) {
mac1[i] = mac[i];
}
for (i = 5; i >= 0; i--) {
if (mac1[i] == 0xFF) {
mac1[i] = 0x00;
} else {
mac1[i] += 1;
break;
}
}
printf("MAC Address for ethaddr: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
printf("MAC Address for eth1addr: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac1[0], mac1[1], mac1[2], mac1[3], mac1[4], mac1[5]);
eth_env_set_enetaddr("ethaddr", mac);
eth_env_set_enetaddr("eth1addr", mac1);
return CMD_RET_SUCCESS;
}
#endif
static struct cmd_tbl cmd_mmc[] = { static struct cmd_tbl cmd_mmc[] = {
U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""), U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""), U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
@ -1233,6 +1276,9 @@ static struct cmd_tbl cmd_mmc[] = {
#if CONFIG_IS_ENABLED(CMD_MMC_REG) #if CONFIG_IS_ENABLED(CMD_MMC_REG)
U_BOOT_CMD_MKENT(reg, 5, 0, do_mmc_reg, "", ""), U_BOOT_CMD_MKENT(reg, 5, 0, do_mmc_reg, "", ""),
#endif #endif
#if CONFIG_IS_ENABLED(CMD_MMC_MAC)
U_BOOT_CMD_MKENT(mac, 1, 0, do_mac_mmc, "", ""),
#endif
}; };
static int do_mmcops(struct cmd_tbl *cmdtp, int flag, int argc, static int do_mmcops(struct cmd_tbl *cmdtp, int flag, int argc,
@ -1326,6 +1372,9 @@ U_BOOT_CMD(
" (optionally into [env] variable)\n" " (optionally into [env] variable)\n"
" - reg: cid/csd/dsr/ocr/rca/extcsd\n" " - reg: cid/csd/dsr/ocr/rca/extcsd\n"
" - offset: for cid/csd [0..3], for extcsd [0..511,all]\n" " - offset: for cid/csd [0..3], for extcsd [0..511,all]\n"
#endif
#if CONFIG_IS_ENABLED(CMD_MMC_MAC)
"mmc mac - get the MAC address of the eMMC device\n"
#endif #endif
); );