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mb/supermicro/x11ssm-f: correct trigger for SMI/NMI interrupt inputs 

All four SMI/NMI interrupt inputs have an external pull-up resistor and
get triggered by pulling the line low. Thus, correct the trigger to
active-low.

Also document the signals by adding appropriate comments.

The pads' connections have been determined by dissecting a dead board.

Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Change-Id: Id1a8c1e0b9fe723a15d04a88d565a53eeba9b085
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48093
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Michael Niewöhner 2020-11-23 00:25:10 +01:00
parent d328934c9b
commit 9b57022ab4
1 changed files with 5 additions and 5 deletions
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10
src/mainboard/supermicro/x11-lga1151-series/variants/x11ssm-f/gpio.c
View File

@ -80,13 +80,13 @@ static const struct pad_config gpio_table[] = {
PAD_NC(GPP_C19, NONE),
PAD_NC(GPP_C20, NONE),
PAD_NC(GPP_C21, NONE),
PAD_CFG_GPI_SMI(GPP_C22, UP_20K, DEEP, EDGE_SINGLE, NONE),
PAD_CFG_GPI_SMI_LOW(GPP_C22, UP_20K, DEEP, EDGE_SINGLE), /* BMC SMI# */
PAD_NC(GPP_C23, NONE),
/* GPIO Group GPP_D */
PAD_NC(GPP_D0, NONE),
PAD_CFG_GPO_GPIO_DRIVER(GPP_D1, 1, DEEP, NONE),
PAD_CFG_GPI_NMI(GPP_D2, UP_20K, DEEP, EDGE_SINGLE, NONE),
PAD_CFG_GPI_NMI(GPP_D2, UP_20K, DEEP, EDGE_SINGLE, INVERT), /* BMC NMI# */
PAD_NC(GPP_D3, NONE),
PAD_CFG_GPO_GPIO_DRIVER(GPP_D4, 0, PLTRST, NONE),
PAD_NC(GPP_D5, NONE),
@ -116,7 +116,7 @@ static const struct pad_config gpio_table[] = {
PAD_NC(GPP_E3, NONE),
PAD_NC(GPP_E4, NONE),
PAD_NC(GPP_E5, NONE),
PAD_CFG_GPI_NMI(GPP_E6, UP_20K, PLTRST, EDGE_SINGLE, NONE),
PAD_CFG_GPI_NMI(GPP_E6, UP_20K, PLTRST, EDGE_SINGLE, INVERT), /* NMI# (BMC WDT + JF1) */
PAD_NC(GPP_E7, NONE),
PAD_CFG_NF(GPP_E8, NONE, DEEP, NF1),
PAD_CFG_NF(GPP_E9, NONE, DEEP, NF1),
@ -169,8 +169,8 @@ static const struct pad_config gpio_table[] = {
PAD_CFG_GPI_INT(GPP_G15, NONE, PLTRST, OFF),
PAD_CFG_GPI_INT(GPP_G16, NONE, PLTRST, OFF),
PAD_NC(GPP_G17, NONE),
PAD_CFG_NF(GPP_G18, NONE, DEEP, NF1),
PAD_CFG_NF(GPP_G19, NONE, DEEP, NF1),
PAD_CFG_NF(GPP_G18, NONE, DEEP, NF1), /* BMC NMI# */
PAD_CFG_NF(GPP_G19, NONE, DEEP, NF1), /* BMC SMI# */
PAD_NC(GPP_G20, NONE),
PAD_NC(GPP_G21, NONE),
PAD_NC(GPP_G22, NONE),