soc/intel/common/block/gpio: Add gpio_pm_configure() function

This patch adds new function to perform gpio power management
programming as per EDS.

BUG=b:130764684
TEST=Able to build and boot from fixed media on ICL and CML.

Change-Id: I816a70ad92595f013740a235a9799912ad51665e
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32788
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/src/soc/intel/common/block/gpio/gpio.c b/src/soc/intel/common/block/gpio/gpio.c
index 3a0594cba1..d37601ce3b 100644
--- a/src/soc/intel/common/block/gpio/gpio.c
+++ b/src/soc/intel/common/block/gpio/gpio.c
@@ -609,3 +609,21 @@ void gpi_clear_int_cfg(void)
 		}
 	}
 }
+
+/* The function performs GPIO Power Management programming. */
+void gpio_pm_configure(const uint8_t *misccfg_pm_values, size_t num)
+{
+	int i;
+	size_t gpio_communities;
+	uint8_t misccfg_pm_mask = MISCCFG_ENABLE_GPIO_PM_CONFIG;
+	const struct pad_community *comm;
+
+	comm = soc_gpio_get_community(&gpio_communities);
+	if (gpio_communities != num)
+		die("Incorrect GPIO community count!\n");
+
+	/* Program GPIO_MISCCFG */
+	for (i = 0; i < num; i++, comm++)
+		pcr_rmw8(comm->port, GPIO_MISCCFG,
+				misccfg_pm_mask, misccfg_pm_values[i]);
+}