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mb/google/octopus: Override DDI1 DDC SDA/SCL for Garg HDMI 

garg 2A2C DB: SKU ID - 1
garg HDMI DB: SKU ID - 9
garg LTE  DB: SKU ID - 17

For HDMI SKU9, GPIO needs to be overriden to enable
DDI1 DDC SDA/SCL.

BUG=b:134912735
BRANCH=octopus
TEST=emerge-octopus coreboot chromeos-bootimage
Change-Id: I6ad8e5aa52f503121b10fe353e4bf4021aee2061
Signed-off-by: Kevin Chiu <Kevin.Chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33552
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
This commit is contained in:
Kevin Chiu 2019-06-17 16:18:27 +08:00 committed by Furquan Shaikh
parent 84133b161c
commit 19476c34b0
1 changed files with 33 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
src/mainboard/google/octopus/variants/garg/gpio.c
View File

@ -19,6 +19,12 @@
#include <gpio.h>
#include <soc/gpio.h>
enum {
SKU_1_2A2C = 1,
SKU_9_HDMI = 9,
SKU_17_LTE = 17,
};
static const struct pad_config default_override_table[] = {
PAD_NC(GPIO_104, UP_20K),
@ -29,9 +35,34 @@ static const struct pad_config default_override_table[] = {
PAD_NC(GPIO_213, DN_20K),
};
static const struct pad_config hdmi_override_table[] = {
PAD_NC(GPIO_104, UP_20K),
/* HV_DDI1_DDC_SDA */
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_126, NONE, DEEP, NF1, HIZCRx1,
DISPUPD),
/* HV_DDI1_DDC_SCL */
PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_127, NONE, DEEP, NF1, HIZCRx1,
DISPUPD),
/* EN_PP3300_TOUCHSCREEN */
PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0,
DISPUPD),
PAD_NC(GPIO_213, DN_20K),
};
const struct pad_config *variant_override_gpio_table(size_t *num)
{
*num = ARRAY_SIZE(default_override_table);
uint32_t sku_id;
sku_id = get_board_sku();
return default_override_table;
switch (sku_id) {
case SKU_9_HDMI:
*num = ARRAY_SIZE(hdmi_override_table);
return hdmi_override_table;
default:
*num = ARRAY_SIZE(default_override_table);
return default_override_table;
}
}