diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2013-11-14 17:39:04 -0600 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2014-05-07 22:05:55 +0200 |
| commit | bd4ea8cd4d34cdca6aef2914cf880a20bf3025fe (patch) | |
| tree | 047961e6ce76d0aa40f80c474082f29478eb4125 /src/soc/intel/baytrail | |
| parent | ebf7ec5dab9198a0a84174e72b8eaf1af68d7b73 (diff) | |
| download | coreboot-bd4ea8cd4d34cdca6aef2914cf880a20bf3025fe.tar.xz | |
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>
Reviewed-on: http://review.coreboot.org/4975
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/soc/intel/baytrail')
| -rw-r--r-- | src/soc/intel/baytrail/baytrail/gpio.h | 18 |
1 files changed, 3 insertions, 15 deletions
diff --git a/src/soc/intel/baytrail/baytrail/gpio.h b/src/soc/intel/baytrail/baytrail/gpio.h index bdb33f1d75..1b5eacfccf 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 \ |