u-boot-brain/arch
Marek Vasut c49d0ac38a ARM: dts: rmobile: Increase off-on delay on the SD Vcc regulator
An ADATA 16GB Industrial MLC card has so much capacitance on the Vcc
pin that the usual toggling of regulator to power the card off and on
is insufficient. When the card is calibrated into UHS SDR104 mode, it
will remain in that mode across the power cycle and subsequent attempt
to communicate with the card will fail.

The test with this card is to insert it into an SDHI slot and perform
"mmc dev 0 ; mmc dev 0", where the second "mmc dev 0" will fail.

Fix this problem by increasing the off-on delay from 0 to 20 mS.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2019-03-25 20:26:53 +01:00
..
arc ARC: cache: define CONFIG_SYS_CACHELINE_SIZE as ARCH_DMA_MINALIGN 2019-01-25 08:41:09 +03:00
arm ARM: dts: rmobile: Increase off-on delay on the SD Vcc regulator 2019-03-25 20:26:53 +01:00
m68k m68k: ColdFire mcf5441x, add eSDHC support 2018-09-16 00:01:13 +02:00
microblaze arch: types.h: factor out fixed width typedefs to int-ll64.h 2018-09-10 20:48:16 -04:00
mips mips: add missing dtb-y to arch/mips/dts/Makefile 2019-03-22 12:15:12 -04:00
nds32 nds32: dts: Fix mmc node compatible string 2019-01-22 17:36:20 +08:00
nios2 .gitignore: move *.dtb and *.dtb.S patterns to the top-level .gitignore 2018-06-18 14:43:12 -04:00
powerpc powerpc: fix arch/powerpc/dts/Makefile 2019-03-22 12:15:10 -04:00
riscv riscv: Enable CONFIG_SYS_BOOT_RAMDISK_HIGH for using initrd 2019-02-27 09:12:34 +08:00
sandbox clk: Add fixed-factor clock driver 2019-02-27 09:12:33 +08:00
sh sh: bitops: add hweight*() macros 2019-02-07 15:33:21 +05:30
x86 x86: crownbay: Enable the beeper sound driver 2019-03-11 22:55:01 +08:00
xtensa xtensa: use asm-generic/atomic.h 2018-09-25 21:49:18 -04:00
.gitignore
Kconfig riscv: Enable create symlink using kconfig 2019-02-27 09:12:33 +08:00