Change in coreboot[master]: soc/intel/common: Add CPU Port ID field to GPIO communities

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Patrick Rudolph.
Tim Wawrzynczak has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/52590 )

Change subject: soc/intel/common: Add CPU Port ID field to GPIO communities
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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 
---
M src/soc/intel/common/block/gpio/gpio.c
M src/soc/intel/common/block/include/intelblocks/gpio.h
2 files changed, 10 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/90/52590/1

diff --git a/src/soc/intel/common/block/gpio/gpio.c b/src/soc/intel/common/block/gpio/gpio.c
index 9719a1b2..26c4058 100644
--- a/src/soc/intel/common/block/gpio/gpio.c
+++ b/src/soc/intel/common/block/gpio/gpio.c
@@ -694,6 +694,12 @@
    return comm->groups[i].virtual_wire_index;
 }

+int gpio_get_pad_cpu_portid(gpio_t pad)
+{
+	const struct pad_community *comm = gpio_get_community(pad);
+	return comm->cpu_port;
+}
+
 static uint32_t *snapshot;

static void *allocate_snapshot_space(void)
diff --git a/src/soc/intel/common/block/include/intelblocks/gpio.h b/src/soc/intel/common/block/include/intelblocks/gpio.h
index aa28b6a..a6b5719 100644
--- a/src/soc/intel/common/block/include/intelblocks/gpio.h
+++ b/src/soc/intel/common/block/include/intelblocks/gpio.h
@@ -134,6 +134,7 @@
    uint8_t		gpi_status_offset;  /* specifies offset in struct
    					gpi_status */
    uint8_t		port;	/* PCR Port ID */
+	uint8_t		cpu_port; /* CPU Port ID */
    const struct reset_mapping	*reset_map; /* PADRSTCFG logical to
    		chipset mapping */
    size_t		num_reset_vals;
@@ -256,5 +257,8 @@
 /* Returns virtual wire index for the pad; can be VW_INDEX_NONE */
 int gpio_get_vw_index(gpio_t pad);

+/* Returns PCR port ID for this pad for the CPU */
+int gpio_get_pad_cpu_portid(gpio_t pad);
+
 #endif
 #endif /* _SOC_INTELBLOCKS_GPIO_H_ */