From 9a251c0280c3fdb57b7370e0670b724385b328d8 Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Tue, 30 Aug 2016 17:23:59 -0500 Subject: mainboard/google/reef: add pen connections A pen interface was added. Prepare for possibly testing it by plumbing in the gpio configuration. It's very possible these changes need to be tweaked, but no driver code has been seen yet nor a datasheet detailing how some of these signals actually function. BUG=chrome-os-partner:56739 Change-Id: I208ff3e151ce55d62e5fcc33a1e39cc87e229970 Signed-off-by: Aaron Durbin Reviewed-on: https://review.coreboot.org/16376 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie Reviewed-by: Paul Menzel --- src/mainboard/google/reef/gpio.h | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'src') diff --git a/src/mainboard/google/reef/gpio.h b/src/mainboard/google/reef/gpio.h index bf43d3e732..d3b1e91e99 100644 --- a/src/mainboard/google/reef/gpio.h +++ b/src/mainboard/google/reef/gpio.h @@ -112,9 +112,11 @@ static const struct pad_config gpio_table[] = { PAD_CFG_NF(GPIO_132, UP_2K, DEEP, NF1), /* LPSS_I2C4_SDA */ PAD_CFG_NF(GPIO_133, UP_2K, DEEP, NF1), /* LPSS_I2C4_SCL */ - /* I2C5-7 -- unused. */ - PAD_CFG_GPI(GPIO_134, UP_20K, DEEP), /* LPSS_I2C5_SDA */ - PAD_CFG_GPI(GPIO_135, UP_20K, DEEP), /* LPSS_I2C5_SCL */ + /* I2C5 -- pen with external pulls */ + PAD_CFG_NF(GPIO_134, NONE, DEEP, NF1), /* LPSS_I2C5_SDA */ + PAD_CFG_NF(GPIO_135, NONE, DEEP, NF1), /* LPSS_I2C5_SCL */ + + /* I2C6-7 -- unused. */ PAD_CFG_GPI(GPIO_136, UP_20K, DEEP), /* LPSS_I2C6_SDA */ PAD_CFG_GPI(GPIO_137, UP_20K, DEEP), /* LPSS_I2C6_SCL */ PAD_CFG_GPI(GPIO_138, UP_20K, DEEP), /* LPSS_I2C7_SDA */ @@ -289,7 +291,7 @@ static const struct pad_config gpio_table[] = { PAD_CFG_GPI(GPIO_10, UP_20K, DEEP), /* unused */ PAD_CFG_GPI_SCI_LOW(GPIO_11, NONE, DEEP, EDGE_SINGLE), /* EC SCI */ PAD_CFG_GPI(GPIO_12, UP_20K, DEEP), /* unused */ - PAD_CFG_GPI(GPIO_13, UP_20K, DEEP), /* unused */ + PAD_CFG_GPI_APIC_LOW(GPIO_13, UP_20K, DEEP), /* PEN_INT_ODL */ PAD_CFG_GPI_APIC_HIGH(GPIO_14, DN_20K, DEEP), /* FP_INT */ PAD_CFG_GPI(GPIO_16, UP_20K, DEEP), /* unused */ PAD_CFG_GPI(GPIO_17, UP_20K, DEEP), /* unused */ @@ -299,7 +301,7 @@ static const struct pad_config gpio_table[] = { PAD_CFG_GPI_APIC_LOW(GPIO_21, NONE, DEEP), /* Touch IRQ */ PAD_CFG_GPI_SCI_LOW(GPIO_22, NONE, DEEP, LEVEL), /* EC wake */ PAD_CFG_GPI(GPIO_23, UP_20K, DEEP), /* unused */ - PAD_CFG_GPI(GPIO_24, UP_20K, DEEP), /* unused */ + PAD_CFG_GPI(GPIO_24, UP_20K, DEEP), /* PEN_PDCT_ODL */ PAD_CFG_GPI(GPIO_25, UP_20K, DEEP), /* unused */ PAD_CFG_GPI(GPIO_26, UP_20K, DEEP), /* unused */ PAD_CFG_GPI(GPIO_27, UP_20K, DEEP), /* unused */ @@ -310,7 +312,7 @@ static const struct pad_config gpio_table[] = { PAD_CFG_NF(GPIO_32, NONE, DEEP, NF5), /* SUS_CLK2 */ PAD_CFG_GPI_APIC_LOW(GPIO_33, NONE, DEEP), /* PMIC IRQ */ PAD_CFG_GPI(GPIO_34, UP_20K, DEEP), /* unused */ - PAD_CFG_GPI(GPIO_35, UP_20K, DEEP), /* unused */ + PAD_CFG_GPO(GPIO_35, 0, DEEP), /* PEN_RESET - active high */ PAD_CFG_GPO(GPIO_36, 0, DEEP), /* touch reset */ PAD_CFG_GPI(GPIO_37, UP_20K, DEEP), /* unused */ -- cgit v1.2.3