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soc/intel/common: Add CPU Port ID field to GPIO communities 

The CPU can have its own Port IDs when addressing GPIO communities, which
differ from the PCH PCR IDs.

1) Add a field to `struct pad_community` that can hold this value when
   known.
2) Add a function to return this value for a given GPIO pad.

Change-Id: I007c01758ae3026fe4dfef07b6a3a269ee3f9e33
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52590
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Tim Wawrzynczak 2021-04-21 14:08:53 -06:00
parent 8d3cc1bcc2
commit 87b7ec2ebb
2 changed files with 10 additions and 0 deletions
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6
src/soc/intel/common/block/gpio/gpio.c
View File

@ -787,3 +787,9 @@ bool gpio_get_vw_info(gpio_t pad, unsigned int *vw_index, unsigned int *vw_bit)
return true; return true;
} }
unsigned int gpio_get_pad_cpu_portid(gpio_t pad)
{
const struct pad_community *comm = gpio_get_community(pad);
return comm->cpu_port;
}

4
src/soc/intel/common/block/include/intelblocks/gpio.h
View File

@ -124,6 +124,7 @@ struct pad_community {
uint8_t gpi_status_offset; /* specifies offset in struct uint8_t gpi_status_offset; /* specifies offset in struct
gpi_status */ gpi_status */
uint8_t port; /* PCR Port ID */ uint8_t port; /* PCR Port ID */
uint8_t cpu_port; /* CPU Port ID */
const struct reset_mapping *reset_map; /* PADRSTCFG logical to const struct reset_mapping *reset_map; /* PADRSTCFG logical to
chipset mapping */ chipset mapping */
size_t num_reset_vals; size_t num_reset_vals;
@ -256,5 +257,8 @@ size_t gpio_get_index_in_group(gpio_t pad);
*/ */
bool gpio_get_vw_info(gpio_t pad, unsigned int *vw_index, unsigned int *vw_bit); bool gpio_get_vw_info(gpio_t pad, unsigned int *vw_index, unsigned int *vw_bit);
/* Returns PCR port ID for this pad for the CPU; will be 0 if not available */
unsigned int gpio_get_pad_cpu_portid(gpio_t pad);
#endif #endif
#endif /* _SOC_INTELBLOCKS_GPIO_H_ */ #endif /* _SOC_INTELBLOCKS_GPIO_H_ */