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author | Subrata Banik <subratabanik@google.com> | 2022-01-04 20:29:27 +0000 |
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committer | Subrata Banik <subratabanik@google.com> | 2022-01-26 08:29:35 +0000 |
commit | 7e8a0e61e732c9cf17663d94a88d08be1bcbee9c (patch) | |
tree | 8e37fa909a3f9d8dc0c0f84cbf24b98bd2579701 /src/soc/intel/alderlake | |
parent | fe678cbd195d354e11b702e649ad6aba384f92ba (diff) |
soc/intel/common/gpio: Rework PAD config macro to add lock support
This patch extends `struct pad_config` to add new variable for gpio
lock action.
Additionally, it creates new GPIO PAD configuration macros that perform
GPIO pad configuration and pad lock configuration as well.
List of new macros are:
1. PAD_CFG_NF_LOCK
2. PAD_CFG_GPO_LOCK
3. PAD_CFG_GPI_LOCK
4. PAD_CFG_GPI_TRIG_OWN_LOCK
5. PAD_CFG_GPI_GPIO_DRIVER_LOCK
6. PAD_CFG_GPI_INT_LOCK
7. PAD_CFG_GPI_APIC_LOCK
8. PAD_CFG_GPI_IRQ_WAKE_LOCK
Mainboard users can use the above macros to lock the PAD after
configuration.
So far on IA chipset, the default GPIO pad lock configuration reset
type is POWERGOOD hence, it's recommended as per GPIO BWG (doc: 630603)
to configure the GPP PAD reset type the same as lock configuration
reset type to avoid GPP reset value misconfiguration issue.
BUG=b:211573253, b:211950520
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ibf8b0a845005ad545266d995449d0aa711f45a61
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60774
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Diffstat (limited to 'src/soc/intel/alderlake')
0 files changed, 0 insertions, 0 deletions