Aaron Durbin (adurbin@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4979
-gerrit
commit 9e4d1a9d67087411c9187040a4f8d003c5715bf2 Author: Aaron Durbin adurbin@chromium.org Date: Wed Nov 20 15:21:40 2013 -0600
rambi: use SERIRQ pad as keyboard irq in gpio mode
The level shifting between 3.3V and 1.8V for the SERIRQ signal is not working. Instead use the SERIRQ pad as a gpio which is used as a direct IRQ signal for the keyboard interupt.
BUG=chrome-os-partner:23965 BRANCH=None TEST=Built and booted rambi. Keyboard works with associated EC change. CQ-DEPEND=CL:177189
Change-Id: Ifc270ca38207828a6d4711551d4bde9121559cca Signed-off-by: Aaron Durbin adurbin@chromium.org Reviewed-on: https://chromium-review.googlesource.com/177223 Tested-by: Bernie Thompson bhthompson@chromium.org --- src/mainboard/google/rambi/acpi/superio.asl | 3 +++ src/mainboard/google/rambi/gpio.c | 3 ++- src/mainboard/google/rambi/irqroute.h | 2 ++ src/mainboard/google/rambi/onboard.h | 2 ++ 4 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/src/mainboard/google/rambi/acpi/superio.asl b/src/mainboard/google/rambi/acpi/superio.asl index f40611c..3199ed5 100644 --- a/src/mainboard/google/rambi/acpi/superio.asl +++ b/src/mainboard/google/rambi/acpi/superio.asl @@ -19,10 +19,13 @@
/* mainboard configuration */ #include <mainboard/google/rambi/ec.h> +#include <mainboard/google/rambi/onboard.h>
#define SIO_EC_MEMMAP_ENABLE // EC Memory Map Resources #define SIO_EC_HOST_ENABLE // EC Host Interface Resources #define SIO_EC_ENABLE_PS2K // Enable PS/2 Keyboard +// Override default IRQ settings +#define SIO_EC_PS2K_IRQ Interrupt(ResourceConsumer, Edge, ActiveLow) {BOARD_I8042_IRQ}
/* ACPI code for EC SuperIO functions */ #include <ec/google/chromeec/acpi/superio.asl> diff --git a/src/mainboard/google/rambi/gpio.c b/src/mainboard/google/rambi/gpio.c index dfe880a..76002cf 100644 --- a/src/mainboard/google/rambi/gpio.c +++ b/src/mainboard/google/rambi/gpio.c @@ -106,7 +106,7 @@ static const struct soc_gpio_map gpscore_gpio_map[] = { GPIO_FUNC1, /* S0-SC047 - PCLK_TPM */ GPIO_FUNC1, /* S0-SC048 - CLK_PCI_EC */ GPIO_FUNC1, /* S0-SC049 - LPC_CLKRUN_L */ - GPIO_FUNC(1, PULL_UP, 10K), /* S0-SC050 - IRQ_SERIRQ */ + GPIO_DIRQ, /* S0-SC050 - IRQ_SERIRQ -- using for keyboard irq */ GPIO_NC, /* S0-SC051 - SMB_SOC_DATA (XDP) */ GPIO_NC, /* S0-SC052 - SMB_SOC_CLK (XDP) */ GPIO_NC, /* S0-SC053 - SMB_SOC_ALERTB (NC) */ @@ -213,6 +213,7 @@ static const struct soc_gpio_map gpssus_gpio_map[] = { static const u8 core_dedicated_irq[GPIO_MAX_DIRQS] = { [TPAD_IRQ_OFFSET] = TPAD_IRQ_GPIO, [TOUCH_IRQ_OFFSET] = TOUCH_IRQ_GPIO, + [I8042_IRQ_OFFSET] = I8042_IRQ_GPIO, };
static const u8 sus_dedicated_irq[GPIO_MAX_DIRQS] = { diff --git a/src/mainboard/google/rambi/irqroute.h b/src/mainboard/google/rambi/irqroute.h index eaafff9..ddf6a76 100644 --- a/src/mainboard/google/rambi/irqroute.h +++ b/src/mainboard/google/rambi/irqroute.h @@ -49,6 +49,8 @@ /* CORE bank DIRQs - up to 16 supported */ #define TPAD_IRQ_OFFSET 0 #define TOUCH_IRQ_OFFSET 1 +#define I8042_IRQ_OFFSET 2 /* Corresponding SCORE GPIO pins */ #define TPAD_IRQ_GPIO 55 #define TOUCH_IRQ_GPIO 72 +#define I8042_IRQ_GPIO 50 diff --git a/src/mainboard/google/rambi/onboard.h b/src/mainboard/google/rambi/onboard.h index 6a8e751..7f5d885 100644 --- a/src/mainboard/google/rambi/onboard.h +++ b/src/mainboard/google/rambi/onboard.h @@ -34,4 +34,6 @@ #define BOARD_TOUCHSCREEN_I2C_BUS 5 #define BOARD_TOUCHSCREEN_I2C_ADDR 0x4a /* TODO(shawnn): Check this */
+#define BOARD_I8042_IRQ GPIO_S0_DED_IRQ(I8042_IRQ_OFFSET) + #endif