soc/intel/quark: Initialize some of the FADT base registers

Initialize the base addresses for:
*  Power management control
*  Power management status
*  Reset
*  Power management timer
*  General-Purpose Event 0

Testing on Galileo:
*  Edit the src/mainboard/intel/galileo/Makefile.inc file:
   *  Add "select ADD_FSP_PDAT_FILE"
   *  Add "select ADD_FSP_RAW_BIN"
   *  Add "select ADD_RMU_FILE"
*  Place the FSP.bin file in the location specified by CONFIG_FSP_FILE
*  Place the pdat.bin files in the location specified by
CONFIG_FSP_PDAT_FILE
*  Place the rmu.bin file in the location specified by CONFIG_RMU_FILE
*  Build EDK2 CorebootPayloadPkg/CorebootPayloadPkgIa32.dsc to generate
UEFIPAYLOAD.fd
*  Edit .config file and add the following lines:
   * CONFIG_PAYLOAD_ELF=y
   * CONFIG_PAYLOAD_FILE="path to UEFIPAYLOAD.fd"
*  Testing successful when:
   *  Register address are properly displayed by the payload
   *  "reset -c" performs a reset and reboots the system
   *  "reset -w" performs a reset and reboots the system
   *  "reset -s" performs a reset and turns off the power

Change-Id: I9d043f4906a067b2477650140210cfae4a7f8b79
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/13764
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

4 files changed, 130 insertions, 0 deletions

diff --git a/src/soc/intel/quark/Makefile.inc b/src/soc/intel/quark/Makefile.inc
index c89a97e4c5..d8650fa8b9 100644
--- a/src/soc/intel/quark/Makefile.inc
+++ b/src/soc/intel/quark/Makefile.inc
@@ -26,6 +26,7 @@ ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpi.c
 ramstage-y += chip.c
 ramstage-y += memmap.c
 ramstage-y += northcluster.c
+ramstage-y += pmc.c
 ramstage-y += tsc_freq.c
 ramstage-$(CONFIG_ENABLE_BUILTIN_HSUART1) += uart_common.c
 ramstage-$(CONFIG_ENABLE_BUILTIN_HSUART1) += uart.c
diff --git a/src/soc/intel/quark/acpi.c b/src/soc/intel/quark/acpi.c
index f43a74c6cb..90adc344d2 100644
--- a/src/soc/intel/quark/acpi.c
+++ b/src/soc/intel/quark/acpi.c
@@ -16,6 +16,7 @@
  */
 
 #include <soc/acpi.h>
+#include <soc/ramstage.h>
 
 unsigned long acpi_fill_madt(unsigned long current)
 {
@@ -30,4 +31,75 @@ unsigned long acpi_fill_mcfg(unsigned long current)
 
 void acpi_fill_in_fadt(acpi_fadt_t *fadt)
 {
+	struct device *dev = dev_find_slot(0,
+		PCI_DEVFN(PCI_DEVICE_NUMBER_QNC_LPC,
+		PCI_FUNCTION_NUMBER_QNC_LPC));
+	uint32_t gpe0_base = pci_read_config32(dev, R_QNC_LPC_GPE0BLK)
+		& B_QNC_LPC_GPE0BLK_MASK;
+	uint32_t pmbase = pci_read_config32(dev, R_QNC_LPC_PM1BLK)
+		& B_QNC_LPC_PM1BLK_MASK;
+
+	fadt->flags = ACPI_FADT_RESET_REGISTER | ACPI_FADT_PLATFORM_CLOCK;
+
+	/* PM1 Status: ACPI 4.8.3.1.1 */
+	fadt->pm1a_evt_blk = pmbase + R_QNC_PM1BLK_PM1S;
+	fadt->pm1_evt_len = 2;
+
+	fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8;
+	fadt->x_pm1a_evt_blk.bit_offset = 0;
+	fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
+	fadt->x_pm1a_evt_blk.addrl = pmbase + R_QNC_PM1BLK_PM1S;
+	fadt->x_pm1a_evt_blk.addrh = 0x0;
+
+	/* PM1 Control: ACPI 4.8.3.2.1 */
+	fadt->pm1a_cnt_blk = pmbase + R_QNC_PM1BLK_PM1C;
+	fadt->pm1_cnt_len = 2;
+
+	fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8;
+	fadt->x_pm1a_cnt_blk.bit_offset = 0;
+	fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS;
+	fadt->x_pm1a_cnt_blk.addrl = fadt->pm1a_cnt_blk;
+	fadt->x_pm1a_cnt_blk.addrh = 0x0;
+
+	/* PM Timer: ACPI 4.8.3.3 */
+	fadt->pm_tmr_blk = pmbase + R_QNC_PM1BLK_PM1T;
+	fadt->pm_tmr_len = 4;
+
+	fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8;
+	fadt->x_pm_tmr_blk.bit_offset = 0;
+	fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_pm_tmr_blk.addrl = fadt->pm_tmr_blk;
+	fadt->x_pm_tmr_blk.addrh = 0x0;
+
+	/* Reset Register: ACPI 4.8.3.6, 5.2.3.2 */
+	fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->reset_reg.bit_width = 8;
+	fadt->reset_reg.bit_offset = 0;
+	fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS;
+	fadt->reset_reg.addrl = 0xcf9;
+	fadt->reset_reg.addrh = 0;
+
+	/* Soft/Warm Reset */
+	fadt->reset_value = 6;
+
+	/* General-Purpose Event 0 Registers: ACPI 4.8.4.1 */
+	fadt->gpe0_blk = gpe0_base;
+	fadt->gpe0_blk_len = 4 * 2;
+
+	fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO;
+	fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8;
+	fadt->x_gpe0_blk.bit_offset = 0;
+	fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS;
+	fadt->x_gpe0_blk.addrl = fadt->gpe0_blk;
+	fadt->x_gpe0_blk.addrh = 0;
+
+	/* Display the base registers */
+	printk(BIOS_DEBUG, "FADT:\n");
+	printk(BIOS_DEBUG, "  0x%08x: GPE0_BASE\n", gpe0_base);
+	printk(BIOS_DEBUG, "  0x%08x: PMBASE\n", pmbase);
+	printk(BIOS_DEBUG, "  0x%08x: RESET\n", fadt->reset_reg.addrl);
+
 }
diff --git a/src/soc/intel/quark/include/soc/iomap.h b/src/soc/intel/quark/include/soc/iomap.h
index f033dcb560..31cf604844 100644
--- a/src/soc/intel/quark/include/soc/iomap.h
+++ b/src/soc/intel/quark/include/soc/iomap.h
@@ -24,4 +24,10 @@
 /* UART MMIO */
 #define UART_BASE_ADDRESS		CONFIG_TTYS0_BASE
 
+/*
+ * I/O port address space
+ */
+#define ACPI_BASE_ADDRESS	0x1000
+#define ACPI_BASE_SIZE		0x100
+
 #endif /* _QUARK_IOMAP_H_ */
diff --git a/src/soc/intel/quark/pmc.c b/src/soc/intel/quark/pmc.c
new file mode 100644
index 0000000000..fbed93582e
--- /dev/null
+++ b/src/soc/intel/quark/pmc.c
@@ -0,0 +1,51 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015-2016 Intel Corporation.
+ *
+ * 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 <device/pci.h>
+#include <device/pci_ids.h>
+#include <soc/iomap.h>
+#include <soc/pci_devs.h>
+#include <soc/pm.h>
+#include <soc/ramstage.h>
+
+static void pmc_read_resources(device_t dev)
+{
+	unsigned index = 0;
+	struct resource *res;
+
+	/* Get the normal PCI resources of this device. */
+	pci_dev_read_resources(dev);
+
+	/* PMBASE */
+	res = new_resource(dev, index++);
+	res->base = ACPI_BASE_ADDRESS;
+	res->size = ACPI_BASE_SIZE;
+	res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+}
+
+static struct device_operations device_ops = {
+	.read_resources		= &pmc_read_resources,
+	.set_resources		= &pci_dev_set_resources,
+	.enable_resources	= &pci_dev_enable_resources,
+	.scan_bus		= &scan_lpc_bus,
+};
+
+static const struct pci_driver pmc __pci_driver = {
+	.ops	= &device_ops,
+	.vendor	= PCI_VENDOR_ID_INTEL,
+	.device	= QUARK_V_LPC_DEVICE_ID_0,
+};