hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

pinctrl: uniphier: drop meaningless pin from SD1 pin-mux of Pro4 

The pin 327 was supposed to be used as a voltage control line for the
SD card regulator, but the SD card port1 does not support UHS-I.  It
only supports 3.3V signaling, hence this pin is pointless.

Just a note about the background.  At first, hardware engineers tried
to implement the UHS for this port.  Then, they needed to shrink the
silicon die size, and gave up the UHS, but forgot to remove the pin
assignment.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Masahiro Yamada 2018-08-11 11:16:13 +09:00 committed by Linus Walleij
parent 305fa67ee4
commit 375fef5916
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/pinctrl/uniphier/pinctrl-uniphier-pro4.c
View File

@ -1048,9 +1048,8 @@ static const unsigned nand_cs1_pins[] = {131, 132};
static const int nand_cs1_muxvals[] = {1, 1};
static const unsigned sd_pins[] = {150, 151, 152, 153, 154, 155, 156, 157, 158};
static const int sd_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
static const unsigned sd1_pins[] = {319, 320, 321, 322, 323, 324, 325, 326,
327};
static const int sd1_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
static const unsigned int sd1_pins[] = {319, 320, 321, 322, 323, 324, 325, 326};
static const int sd1_muxvals[] = {0, 0, 0, 0, 0, 0, 0, 0};
static const unsigned spi0_pins[] = {199, 200, 201, 202};
static const int spi0_muxvals[] = {11, 11, 11, 11};
static const unsigned spi1_pins[] = {195, 196, 197, 198, 235, 238, 239};