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mb/siemens/{mc_ehl6,mc_ehl7}: Configure GPIO GPP_G5 (SD CD) pull-up

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On mc_ehl6/7 mainboards, the internal GPIO pull-up is required for the
SD card "Card Detect" signal to function properly.
This patch updates the GPIO configuration accordingly.

TEST=Booted mc_ehl6 and verified the voltage level at the
relevant pin before and after the patch.

Change-Id: I96a381f100dd9886ced030434316125d60a13a72
Signed-off-by: Uwe Poeche <uwe.poeche@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90769
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Uwe Poeche 2026-01-15 14:03:03 +01:00 • committed by Matt DeVillier
commit 532543027a
2 changed files with 2 additions and 0 deletions
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1
src/mainboard/siemens/mc_ehl/variants/mc_ehl6/gpio.c
View file

@ -27,6 +27,7 @@ static const struct pad_config gpio_table[] = {
PAD_CFG_NF(GPP_T13, NONE, DEEP, NF2), /* SIO_UART0_TXD */
/* Community 0 - GpioGroup GPP_G */
PAD_CFG_NF(GPP_G5, UP_20K, DEEP, NF1), /* SD Card Detect */
PAD_NC(GPP_G8, NONE), /* Not connected */
PAD_NC(GPP_G9, NONE), /* Not connected */
PAD_CFG_GPI(GPP_G19, UP_20K, PLTRST), /* TPM_IRQ_N */

1
src/mainboard/siemens/mc_ehl/variants/mc_ehl7/gpio.c
View file

@ -27,6 +27,7 @@ static const struct pad_config gpio_table[] = {
PAD_CFG_NF(GPP_T13, NONE, DEEP, NF2), /* SIO_UART0_TXD */
/* Community 0 - GpioGroup GPP_G */
PAD_CFG_NF(GPP_G5, UP_20K, DEEP, NF1), /* SD Card Detect */
PAD_NC(GPP_G8, NONE), /* Not connected */
PAD_NC(GPP_G9, NONE), /* Not connected */
PAD_CFG_GPI(GPP_G19, UP_20K, PLTRST), /* TPM_IRQ_N */