diff options
| author | Karthikeyan Ramasubramanian <kramasub@chromium.org> | 2019-05-01 10:22:22 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-05-06 10:34:52 +0000 |
| commit | 6629b4bbf810e5d2e9323651acf8afb2936cf10b (patch) | |
| tree | b1a33f9d8233f4dc8de449a51a802fc5f68d7b1b /src/soc/intel/apollolake/chip.c | |
| parent | 7f1e9dbf3a951599cfa0b2decf0bb6540a666cbd (diff) | |
soc/intel/apollolake: Reset GPI IS & IE registers at ramstage
Reset GPI Interrupt status and enable registers from ramstage instead of
bootblock so that it applies to devices in field.
BUG=b:130593883
BRANCH=octopus
TEST=Ensure that the Interrupt status & enable registers are reset
during the boot up when the system is brought out of G3, S5 & S3. Ensure
that the system boots fine to ChromeOS.
Change-Id: Ib11b580ceb23bd1fe789f549b667a8ced2d859a1
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32534
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/apollolake/chip.c')
| -rw-r--r-- | src/soc/intel/apollolake/chip.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c index 279551f9e0..f6880a7f3f 100644 --- a/src/soc/intel/apollolake/chip.c +++ b/src/soc/intel/apollolake/chip.c @@ -395,6 +395,12 @@ static void soc_init(void *data) * default policy that doesn't honor boards' requirements. */ itss_snapshot_irq_polarities(GPIO_IRQ_START, GPIO_IRQ_END); + /* + * Clear the GPI interrupt status and enable registers. These + * registers do not get reset to default state when booting from S5. + */ + gpi_clear_int_cfg(); + fsp_silicon_init(romstage_handoff_is_resume()); /* Restore GPIO IRQ polarities back to previous settings. */ |