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authorAndrey Petrov <andrey.petrov@intel.com>2016-03-04 21:41:13 -0800
committerAaron Durbin <adurbin@chromium.org>2016-03-10 23:01:31 +0100
commit70efecd4a21c4adc7cbfb5fcdbc8b9bfedbaa270 (patch)
treefede4ab3267322a31bda2f32b1bd1bcc53a12b58 /src/soc/intel/apollolake
parent9d903a1dd352ce16c6e6feee5f63e3b21c821111 (diff)
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>
Diffstat (limited to 'src/soc/intel/apollolake')
-rw-r--r--src/soc/intel/apollolake/Makefile.inc1
-rw-r--r--src/soc/intel/apollolake/chip.c113
-rw-r--r--src/soc/intel/apollolake/chip.h32
3 files changed, 146 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/Makefile.inc b/src/soc/intel/apollolake/Makefile.inc
index 3b31f12c6b..1b2efdf362 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 0000000000..2374a888c3
--- /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 0000000000..026fdda6e8
--- /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_ */