soc/intel/cannonlake: Use SCS common code

This patch uses common SCS library to set up sd card.

Change-Id: I7978bebaeba3a04fbfd01b3a5e5a37af61d2f4ce
Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Reviewed-on: https://review.coreboot.org/21604
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/soc/intel/cannonlake/Kconfig

@@ -59,6 +59,7 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_INTEL_COMMON_BLOCK_PMC
 	select SOC_INTEL_COMMON_BLOCK_RTC
 	select SOC_INTEL_COMMON_BLOCK_SA
+	select SOC_INTEL_COMMON_BLOCK_SCS
 	select SOC_INTEL_COMMON_BLOCK_SMBUS
 	select SOC_INTEL_COMMON_BLOCK_SMM
 	select SOC_INTEL_COMMON_BLOCK_SMM_IO_TRAP

src/soc/intel/cannonlake/Makefile.inc

@@ -46,6 +46,7 @@ ramstage-y += systemagent.c
 ramstage-$(CONFIG_UART_DEBUG) += uart.c
 ramstage-$(CONFIG_UART_DEBUG) += uart_pch.c
 ramstage-y += vr_config.c
+ramstage-y += sd.c
 
 smm-y += gpio.c
 smm-y += pmutil.c

src/soc/intel/cannonlake/chip.h

@@ -21,6 +21,8 @@
 #include <intelblocks/gspi.h>
 #include <stdint.h>
 #include <soc/pch.h>
+#include <soc/gpio_defs.h>
+#include <soc/pci_devs.h>
 #include <soc/serialio.h>
 #include <soc/usb.h>
 #include <soc/vr_config.h>
@@ -245,6 +247,9 @@ struct soc_intel_cannonlake_config {
 	 * PchSerialIoHidden
 	 */
 	uint8_t SerialIoDevMode[PchSerialIoIndexMAX];
+
+	/* GPIO SD card detect pin */
+	unsigned int sdcard_cd_gpio;
 };
 
 typedef struct soc_intel_cannonlake_config config_t;

src/soc/intel/cannonlake/sd.c

@@ -0,0 +1,37 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2017 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <intelblocks/sd.h>
+#include "chip.h"
+
+int sd_fill_soc_gpio_info(struct acpi_gpio* gpio, struct device *dev)
+{
+	config_t *config = dev->chip_info;
+
+	if (!config->sdcard_cd_gpio)
+		return -1;
+
+	gpio->type = ACPI_GPIO_TYPE_INTERRUPT;
+	gpio->pull = ACPI_GPIO_PULL_NONE;
+	gpio->irq.mode = ACPI_IRQ_EDGE_TRIGGERED;
+	gpio->irq.polarity = ACPI_IRQ_ACTIVE_BOTH;
+	gpio->irq.shared = ACPI_IRQ_SHARED;
+	gpio->irq.wake = ACPI_IRQ_WAKE;
+	gpio->interrupt_debounce_timeout = 10000; /* 100ms */
+	gpio->pin_count = 1;
+	gpio->pins[0] = config->sdcard_cd_gpio;
+
+	return 0;
+}