diff options
| author | Quentin Schulz <quentin.schulz@theobroma-systems.com> | 2021-12-02 17:19:10 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2021-12-20 11:04:18 +0100 |
| commit | 3969aa4804edb8aed7bcb3c958e49d0c7388b067 (patch) | |
| tree | 395389393d4d00a5f87150b29751e56d7a446373 | |
| parent | a1b233c2a31baa5b77cb67c0c3be4767be86f727 (diff) | |
| download | mmc-utils-3969aa4804edb8aed7bcb3c958e49d0c7388b067.tar.gz | |
mmc_cmds: add HS400 data rates
JEDEC 5.1 JESD84-B50.1 DEVICE_TYPE [196] specifies that bit 6 is for
"HS400 Dual Data Rate e•MMC at 200 MHz – 1.8 V I/O" and bit 7 for
"HS400 Dual Data Rate e•MMC at 200 MHz – 1.2 V I/O" so let's add those.
Cc: Quentin Schulz <foss+kernel@0leil.net>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Link: https://lore.kernel.org/r/20211202161910.3944640-1-quentin.schulz@theobroma-systems.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | mmc_cmds.c | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -1612,6 +1612,8 @@ int do_read_extcsd(int nargs, char **argv) /* DEVICE_TYPE in A45, CARD_TYPE in A441 */ reg = ext_csd[196]; printf("Card Type [CARD_TYPE: 0x%02x]\n", reg); + if (reg & 0x80) printf(" HS400 Dual Data Rate eMMC @200MHz 1.2VI/O\n"); + if (reg & 0x40) printf(" HS400 Dual Data Rate eMMC @200MHz 1.8VI/O\n"); if (reg & 0x20) printf(" HS200 Single Data Rate eMMC @200MHz 1.2VI/O\n"); if (reg & 0x10) printf(" HS200 Single Data Rate eMMC @200MHz 1.8VI/O\n"); if (reg & 0x08) printf(" HS Dual Data Rate eMMC @52MHz 1.2VI/O\n"); |