diff options
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/Kconfig | 9 | ||||
| -rw-r--r-- | cmd/mmc.c | 32 |
2 files changed, 41 insertions, 0 deletions
diff --git a/cmd/Kconfig b/cmd/Kconfig index b16c603..7653c60 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -572,6 +572,15 @@ config SYS_AMBAPP_PRINT_ON_STARTUP help Show AMBA Plug-n-Play information on startup. +config CMD_BKOPS_ENABLE + bool "mmc bkops enable" + depends on CMD_MMC + default n + help + Enable command for setting manual background operations handshake + on a eMMC device. The feature is optionally available on eMMC devices + conforming to standard >= 4.41. + config CMD_BLOCK_CACHE bool "blkcache - control and stats for block cache" depends on BLOCK_CACHE @@ -729,6 +729,31 @@ static int do_mmc_setdsr(cmd_tbl_t *cmdtp, int flag, return ret; } +#ifdef CONFIG_CMD_BKOPS_ENABLE +static int do_mmc_bkops_enable(cmd_tbl_t *cmdtp, int flag, + int argc, char * const argv[]) +{ + int dev; + struct mmc *mmc; + + if (argc != 2) + return CMD_RET_USAGE; + + dev = simple_strtoul(argv[1], NULL, 10); + + mmc = init_mmc_device(dev, false); + if (!mmc) + return CMD_RET_FAILURE; + + if (IS_SD(mmc)) { + puts("BKOPS_EN only exists on eMMC\n"); + return CMD_RET_FAILURE; + } + + return mmc_set_bkops_enable(mmc); +} +#endif + static cmd_tbl_t cmd_mmc[] = { U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""), U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""), @@ -749,6 +774,9 @@ static cmd_tbl_t cmd_mmc[] = { U_BOOT_CMD_MKENT(rpmb, CONFIG_SYS_MAXARGS, 1, do_mmcrpmb, "", ""), #endif U_BOOT_CMD_MKENT(setdsr, 2, 0, do_mmc_setdsr, "", ""), +#ifdef CONFIG_CMD_BKOPS_ENABLE + U_BOOT_CMD_MKENT(bkops-enable, 2, 0, do_mmc_bkops_enable, "", ""), +#endif }; static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) @@ -813,6 +841,10 @@ U_BOOT_CMD( "mmc rpmb counter - read the value of the write counter\n" #endif "mmc setdsr <value> - set DSR register value\n" +#ifdef CONFIG_CMD_BKOPS_ENABLE + "mmc bkops-enable <dev> - enable background operations handshake on device\n" + " WARNING: This is a write-once setting.\n" +#endif ); /* Old command kept for compatibility. Same as 'mmc info' */ |