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mainboard/google/eve: Set UART0 to skip initialization in FSP 

Set UART0 to "PchSerialIoSkipInit" so the pins for this device are not
set back to native mode by FSP when configured as GPIO input by coreboot.

Now that FSP is not touching the pins I also removed the workaround to
reconfigure the pins after FSP.

BUG=b:35647877
BRANCH=none
TEST=Verify that GPP_C8-GPP_C11 are configured as GPIO input once the OS
is booted and they are not set back to native function by FSP.

Change-Id: Ifec4fa3e66ceeb660bad00c66bc7bd44bb457a01
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/19264
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Duncan Laurie 2017-04-13 01:40:53 -07:00
parent 30783d84cf
commit e49b866c7c
3 changed files with 1 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/mainboard/google/eve/devicetree.cb
View File

@ -204,7 +204,7 @@ chip soc/intel/skylake
[PchSerialIoIndexI2C5] = PchSerialIoDisabled,
[PchSerialIoIndexSpi0] = PchSerialIoPci,
[PchSerialIoIndexSpi1] = PchSerialIoPci,
[PchSerialIoIndexUart0] = PchSerialIoPci,
[PchSerialIoIndexUart0] = PchSerialIoSkipInit,
[PchSerialIoIndexUart1] = PchSerialIoDisabled,
[PchSerialIoIndexUart2] = PchSerialIoSkipInit,
}"

7
src/mainboard/google/eve/gpio.h
View File

@ -231,13 +231,6 @@ static const struct pad_config early_gpio_table[] = {
/* UART2_TXD */ PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1), /* SERVO */
};
static const struct pad_config late_gpio_table[] = {
/* UART0_RXD */ PAD_CFG_GPI(GPP_C8, NONE, PLTRST), /* FP_INT */
/* UART0_TXD */ PAD_CFG_GPI(GPP_C9, NONE, DEEP), /* FP_RST_ODL */
/* UART0_RTS# */ PAD_CFG_GPI(GPP_C10, NONE, DEEP), /* PCH_FPS_MCU_NRST_ODL */
/* UART0_CTS# */ PAD_CFG_GPI(GPP_C11, NONE, DEEP), /* PCH_FPS_MCU_BOOT0 */
};
#endif
#endif

4
src/mainboard/google/eve/mainboard.c
View File

@ -19,10 +19,7 @@
#include <device/device.h>
#include <ec/ec.h>
#include <vendorcode/google/chromeos/chromeos.h>
#include <gpio.h>
#include <soc/gpio.h>
#include <soc/nhlt.h>
#include "gpio.h"
static const char *oem_id_maxim = "GOOGLE";
static const char *oem_table_id_maxim = "EVEMAX";
@ -30,7 +27,6 @@ static const char *oem_table_id_maxim = "EVEMAX";
static void mainboard_init(device_t dev)
{
mainboard_ec_init();
gpio_configure_pads(late_gpio_table, ARRAY_SIZE(late_gpio_table));
}
static unsigned long mainboard_write_acpi_tables(