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mmc_cmds: add HS400 data rates

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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>
This commit is contained in:
Quentin Schulz authored and Ulf Hansson committed 2021-12-20 11:04:18 +01:00
1 parent a1b233c2a3
commit 3969aa4804
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+2
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mmc_cmds.c
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@@ -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");