Aaron Durbin (adurbin@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4975
-gerrit
commit 4ab23984804ae107d9d0e8a36777184140d0ab75 Author: Aaron Durbin adurbin@chromium.org Date: Thu Nov 14 17:39:04 2013 -0600
baytrail: fix direct irq pad configuration
When a pad is configured for direct IRQ it needs to be in non-legacy. Additionally, the signal is passed directly to the APIC by setting the LEVEL and TPE bits in the pad config register. The APIC can then be configured for level, edge, and rising/falling.
BUG=chrome-os-partner:24037 BUG=chrome-os-partner:22863 BRANCH=None TEST=Built and booted with this config. Trackpad is firing interrupts more than it should, but it appears to be a trackpad firmware and/or configuration issue.
Change-Id: I00042b2ddba67d6bf23f0e7468d0719196e6f865 Signed-off-by: Aaron Durbin adurbin@chromium.org Reviewed-on: https://chromium-review.googlesource.com/176793 Reviewed-by: Shawn Nematbakhsh shawnn@chromium.org --- src/soc/intel/baytrail/baytrail/gpio.h | 18 +++--------------- 1 file changed, 3 insertions(+), 15 deletions(-)
diff --git a/src/soc/intel/baytrail/baytrail/gpio.h b/src/soc/intel/baytrail/baytrail/gpio.h index bdb33f1..1b5eacf 100644 --- a/src/soc/intel/baytrail/baytrail/gpio.h +++ b/src/soc/intel/baytrail/baytrail/gpio.h @@ -182,25 +182,13 @@ .use_sel = GPIO_USE_LEGACY, \ .io_sel = GPIO_DIR_INPUT }
-/* Direct / dedicated IRQ input - falling-edge triggered */ +/* Direct / dedicated IRQ input - pass signal directly to apic */ #define GPIO_DIRQ \ { .pad_conf0 = PAD_PU_10K | PAD_PULL_DISABLE | PAD_CONFIG0_DEFAULT \ - | PAD_FUNC0 | PAD_IRQ_EN | PAD_TNE_IRQ, \ + | PAD_FUNC0 | PAD_IRQ_EN | PAD_TPE_IRQ | PAD_LEVEL_IRQ, \ .pad_conf1 = PAD_CONFIG1_DEFAULT, \ - .pad_val = PAD_VAL_INPUT, \ - .use_sel = GPIO_USE_LEGACY, \ - .io_sel = GPIO_DIR_INPUT, \ - .tne = GPIO_NEDGE_ENABLE } + .pad_val = PAD_VAL_INPUT, }
-/* Direct / dedicated IRQ input - rising-edge triggered */ -#define GPIO_DIRQ_INVERT \ - { .pad_conf0 = PAD_PU_10K | PAD_PULL_DISABLE | PAD_CONFIG0_DEFAULT \ - | PAD_FUNC0 | PAD_IRQ_EN | PAD_TPE_IRQ, \ - .pad_conf1 = PAD_CONFIG1_DEFAULT, \ - .pad_val = PAD_VAL_INPUT, \ - .use_sel = GPIO_USE_LEGACY, \ - .io_sel = GPIO_DIR_INPUT, \ - .tne = GPIO_PEDGE_ENABLE }
#define GPIO_OUT_LOW \ { .pad_conf0 = PAD_PULL_DISABLE | PAD_CONFIG0_DEFAULT \