soc/intel/apollolake: Add chip initialization

Change-Id: I54532b71c7649f7eeccbb2213b31418cfdbfb00c
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/13911
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

3 files changed, 146 insertions, 0 deletions

diff --git a/src/soc/intel/apollolake/Makefile.inc b/src/soc/intel/apollolake/Makefile.inc
index 3b31f12c6b76..1b2efdf3621f 100644
--- a/src/soc/intel/apollolake/Makefile.inc
+++ b/src/soc/intel/apollolake/Makefile.inc
@@ -26,6 +26,7 @@ romstage-y += mmap_boot.c
 
 smm-y += placeholders.c
 ramstage-y += cpu.c
+ramstage-y += chip.c
 ramstage-y += placeholders.c
 ramstage-y += gpio.c
 ramstage-$(CONFIG_SOC_UART_DEBUG) += uart_early.c
diff --git a/src/soc/intel/apollolake/chip.c b/src/soc/intel/apollolake/chip.c
new file mode 100644
index 000000000000..2374a888c36d
--- /dev/null
+++ b/src/soc/intel/apollolake/chip.c
@@ -0,0 +1,113 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Intel Corp.
+ * (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for Intel Corp.)
+ * (Written by Andrey Petrov <andrey.petrov@intel.com> for Intel Corp.)
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <bootstate.h>
+#include <console/console.h>
+#include <cpu/cpu.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <fsp/api.h>
+#include <fsp/util.h>
+#include <memrange.h>
+#include <soc/cpu.h>
+#include <soc/pci_devs.h>
+
+#include "chip.h"
+
+static void pci_domain_set_resources(device_t dev)
+{
+       assign_resources(dev->link_list);
+}
+
+static struct device_operations pci_domain_ops = {
+	.read_resources = pci_domain_read_resources,
+	.set_resources = pci_domain_set_resources,
+	.enable_resources = NULL,
+	.init = NULL,
+	.scan_bus = pci_domain_scan_bus,
+	.ops_pci_bus = pci_bus_default_ops,
+};
+
+static struct device_operations cpu_bus_ops = {
+	.read_resources = DEVICE_NOOP,
+	.set_resources = DEVICE_NOOP,
+	.enable_resources = DEVICE_NOOP,
+	.init = apollolake_init_cpus,
+	.scan_bus = NULL,
+};
+
+static void enable_dev(device_t dev)
+{
+	/* Set the operations if it is a special bus type */
+	if (dev->path.type == DEVICE_PATH_DOMAIN) {
+		dev->ops = &pci_domain_ops;
+	} else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER) {
+		dev->ops = &cpu_bus_ops;
+	}
+}
+
+static void soc_init(void *data)
+{
+	struct range_entry range;
+
+	/* TODO: tigten this resource range */
+	/* TODO: fix for S3 resume, as this would corrupt OS memory */
+	range_entry_init(&range, 0x200000, 4ULL*GiB, 0);
+	fsp_silicon_init(&range);
+}
+
+void platform_fsp_silicon_init_params_cb(struct FSPS_UPD *silupd)
+{
+        struct FSP_S_CONFIG *silconfig = &silupd->FspsConfig;
+	static struct soc_intel_apollolake_config *cfg;
+
+	/* Load VBT before devicetree-specific config. */
+	silconfig->GraphicsConfigPtr = fsp_load_vbt();
+
+	struct device *dev = NB_DEV_ROOT;
+	if (!dev && !dev->chip_info) {
+		printk(BIOS_ERR, "BUG! Could not find SOC devicetree config\n");
+		return;
+	}
+
+	cfg = dev->chip_info;
+
+	silconfig->PcieRpClkReqNumber[0] = cfg->pcie_rp0_clkreq_pin;
+	silconfig->PcieRpClkReqNumber[1] = cfg->pcie_rp1_clkreq_pin;
+	silconfig->PcieRpClkReqNumber[2] = cfg->pcie_rp2_clkreq_pin;
+	silconfig->PcieRpClkReqNumber[3] = cfg->pcie_rp3_clkreq_pin;
+	silconfig->PcieRpClkReqNumber[4] = cfg->pcie_rp4_clkreq_pin;
+	silconfig->PcieRpClkReqNumber[5] = cfg->pcie_rp5_clkreq_pin;
+}
+
+struct chip_operations soc_intel_apollolake_ops = {
+	CHIP_NAME("Intel Apollolake SOC")
+	.enable_dev = &enable_dev,
+	.init = &soc_init
+};
+
+static void fsp_notify_dummy(void *arg)
+{
+
+	enum fsp_notify_phase ph = (enum fsp_notify_phase) arg;
+
+	if (fsp_notify(ph) != FSP_SUCCESS)
+		printk(BIOS_CRIT, "FspNotify failed!\n");
+}
+
+BOOT_STATE_INIT_ENTRY(BS_DEV_RESOURCES, BS_ON_EXIT, fsp_notify_dummy,
+						(void *) AFTER_PCI_ENUM);
+BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT, fsp_notify_dummy,
+						(void *) READY_TO_BOOT);
+BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY, fsp_notify_dummy,
+						(void *) READY_TO_BOOT);
diff --git a/src/soc/intel/apollolake/chip.h b/src/soc/intel/apollolake/chip.h
new file mode 100644
index 000000000000..026fdda6e8bb
--- /dev/null
+++ b/src/soc/intel/apollolake/chip.h
@@ -0,0 +1,32 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 Intel Corp.
+ * (Written by Alexandru Gagniuc <alexandrux.gagniuc@intel.com> for Intel Corp.)
+ *
+ * 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; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef _SOC_APOLLOLAKE_CHIP_H_
+#define _SOC_APOLLOLAKE_CHIP_H_
+
+#define CLKREQ_DISABLED		0xf
+
+struct soc_intel_apollolake_config {
+	/*
+	 * Mapping from PCIe root port to CLKREQ input on the SOC. The SOC has
+	 * four CLKREQ inputs, but six root ports. Root ports without an
+	 * associated CLKREQ signal must be marked with "CLKREQ_DISABLED"
+	 */
+	uint8_t pcie_rp0_clkreq_pin;
+	uint8_t pcie_rp1_clkreq_pin;
+	uint8_t pcie_rp2_clkreq_pin;
+	uint8_t pcie_rp3_clkreq_pin;
+	uint8_t pcie_rp4_clkreq_pin;
+	uint8_t pcie_rp5_clkreq_pin;
+};
+
+#endif	/* _SOC_APOLLOLAKE_CHIP_H_ */