GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mb/intel/kblrvp: do UART pad configuration at board-level 

UART pad configuration should not be done in common code, because that
may cause short circuits, when the user sets a wrong UART index. Thus,
add the corresponding pads to the early gpio table for the board as a
first step. Common UART pad config code then gets dropped in CB:48829.

Also switch to `bootblock_mainboard_early_init` to configure the pads in
early bootblock before console initialization, to make the console work
as early as possible. The board does not do any other gpio configuration
in bootblock, so this should not influence behaviour in a negative way
(e.g. breaking overrides).

Change-Id: I8b30eb5d70c34ae3e2ed24ab52dd1357a54c5ae7
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49439
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Michael Niewöhner 2020-12-21 03:46:58 +01:00
parent f6d320060d
commit 18d360a582
4 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/mainboard/intel/kblrvp/bootblock.c
View File

@ -12,7 +12,7 @@ static void early_config_gpio(void)
gpio_configure_pads(early_gpio_table, ARRAY_SIZE(early_gpio_table));
}
void bootblock_mainboard_init(void)
void bootblock_mainboard_early_init(void)
{
early_config_gpio();
}

2
src/mainboard/intel/kblrvp/variants/rvp11/include/variant/gpio.h
View File

@ -267,6 +267,8 @@ static const struct pad_config gpio_table[] = {
static const struct pad_config early_gpio_table[] = {
/* UART0_RXD */ PAD_CFG_NF(GPP_C8, NONE, DEEP, NF1),
/* UART0_TXD */ PAD_CFG_NF(GPP_C9, NONE, DEEP, NF1),
/* GD_UART2_RXD */ PAD_CFG_NF(GPP_C20, NONE, DEEP, NF1),
/* GD_UART2_TXD */ PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1),
};
#endif

2
src/mainboard/intel/kblrvp/variants/rvp7/include/variant/gpio.h
View File

@ -197,6 +197,8 @@ static const struct pad_config gpio_table[] = {
static const struct pad_config early_gpio_table[] = {
/* UART0_RXD */ PAD_CFG_NF(GPP_C8, NONE, DEEP, NF1),
/* UART0_TXD */ PAD_CFG_NF(GPP_C9, NONE, DEEP, NF1),
/* GD_UART2_RXD */ PAD_CFG_NF(GPP_C20, NONE, DEEP, NF1),
/* GD_UART2_TXD */ PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1),
};
#endif

2
src/mainboard/intel/kblrvp/variants/rvp8/include/variant/gpio.h
View File

@ -163,6 +163,8 @@ static const struct pad_config gpio_table[] = {
static const struct pad_config early_gpio_table[] = {
/* UART0_RXD */ PAD_CFG_NF(GPP_C8, NONE, DEEP, NF1),
/* UART0_TXD */ PAD_CFG_NF(GPP_C9, NONE, DEEP, NF1),
/* GD_UART2_RXD */ PAD_CFG_NF(GPP_C20, NONE, DEEP, NF1),
/* GD_UART2_TXD */ PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1),
};
#endif