Aaron Durbin (adurbin@chromium.org) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16376
-gerrit
commit 6d7d4b25164a4259b4d393b0448b395582c38bc5 Author: Aaron Durbin adurbin@chromium.org Date: Tue Aug 30 17:23:59 2016 -0500
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 adurbin@chromium.org --- src/mainboard/google/reef/gpio.h | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/src/mainboard/google/reef/gpio.h b/src/mainboard/google/reef/gpio.h index bf43d3e..d3b1e91 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 */
-
Aaron Durbin