soc/intel/cannonlake: Add PMC pci drivers
Add PMC pci driver on top of PMC common code, also include pmc init code
reference from skylake.
Change-Id: I95895a3e26cdebd98a4e54720bd4730542707d7e
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/21251
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
diff --git a/src/soc/intel/cannonlake/pmc.c b/src/soc/intel/cannonlake/pmc.c
new file mode 100644
index 0000000..a91e5ea
--- /dev/null
+++ b/src/soc/intel/cannonlake/pmc.c
@@ -0,0 +1,180 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2008-2009 coresystems GmbH
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2017 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 <chip.h>
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <arch/io.h>
+#include <arch/ioapic.h>
+#include <arch/acpi.h>
+#include <cpu/cpu.h>
+#include <intelblocks/pcr.h>
+#include <intelblocks/pmclib.h>
+#include <intelblocks/rtc.h>
+#include <pc80/mc146818rtc.h>
+#include <string.h>
+#include <soc/gpio.h>
+#include <soc/iomap.h>
+#include <soc/pci_devs.h>
+#include <soc/pm.h>
+#include <cpu/x86/smm.h>
+#include <soc/pcr_ids.h>
+#include <soc/ramstage.h>
+#include <vboot/vbnv.h>
+#include <vboot/vbnv_layout.h>
+
+static void pch_pmc_add_mmio_resources(device_t dev)
+{
+ struct resource *res;
+
+ /* Memory-mmapped I/O registers. */
+ res = new_resource(dev, PWRMBASE);
+ res->base = PCH_PWRM_BASE_ADDRESS;
+ res->size = PCH_PWRM_BASE_SIZE;
+ res->flags = IORESOURCE_MEM | IORESOURCE_ASSIGNED |
+ IORESOURCE_FIXED | IORESOURCE_RESERVE;
+}
+
+static void pch_pmc_add_io_resource(device_t dev, u16 base, u16 size, int index)
+{
+ struct resource *res;
+ res = new_resource(dev, index);
+ res->base = base;
+ res->size = size;
+ res->flags = IORESOURCE_IO | IORESOURCE_ASSIGNED | IORESOURCE_FIXED;
+}
+
+static void pch_pmc_add_io_resources(device_t dev)
+{
+ /* PMBASE */
+ pch_pmc_add_io_resource(dev, ACPI_BASE_ADDRESS, ACPI_BASE_SIZE, ABASE);
+}
+
+static void pch_pmc_read_resources(device_t dev)
+{
+ /* Get the normal PCI resources of this device. */
+ pci_dev_read_resources(dev);
+
+ /* Add non-standard MMIO resources. */
+ pch_pmc_add_mmio_resources(dev);
+
+ /* Add IO resources. */
+ pch_pmc_add_io_resources(dev);
+}
+
+static void pch_set_acpi_mode(void)
+{
+ if (IS_ENABLED(CONFIG_HAVE_SMI_HANDLER) && !acpi_is_wakeup_s3()) {
+ printk(BIOS_DEBUG, "Disabling ACPI via APMC:\n");
+ outb(APM_CNT_ACPI_DISABLE, APM_CNT);
+ printk(BIOS_DEBUG, "done.\n");
+ }
+}
+
+int soc_get_rtc_failed(void)
+{
+ uint8_t reg8;
+ int rtc_failed;
+ uint8_t *pmcbase = pmc_mmio_regs();
+
+ reg8 = read8(pmcbase + GEN_PMCON_B);
+ rtc_failed = reg8 & RTC_BATTERY_DEAD;
+ if (rtc_failed) {
+ reg8 &= ~RTC_BATTERY_DEAD;
+ write8(pmcbase + GEN_PMCON_B, reg8);
+ printk(BIOS_DEBUG, "rtc_failed = 0x%x\n", rtc_failed);
+ }
+ return rtc_failed;
+}
+
+static void config_deep_sX(uint32_t offset, uint32_t mask, int sx, int enable)
+{
+ uint32_t reg;
+ uint8_t *pmcbase = pmc_mmio_regs();
+
+ printk(BIOS_DEBUG, "%sabling Deep S%c\n",
+ enable ? "En" : "Dis", sx + '0');
+ reg = read32(pmcbase + offset);
+ if (enable)
+ reg |= mask;
+ else
+ reg &= ~mask;
+ write32(pmcbase + offset, reg);
+}
+
+static void config_deep_s5(int on_ac, int on_dc)
+{
+ /* Treat S4 the same as S5. */
+ config_deep_sX(S4_PWRGATE_POL, S4AC_GATE_SUS, 4, on_ac);
+ config_deep_sX(S4_PWRGATE_POL, S4DC_GATE_SUS, 4, on_dc);
+ config_deep_sX(S5_PWRGATE_POL, S5AC_GATE_SUS, 5, on_ac);
+ config_deep_sX(S5_PWRGATE_POL, S5DC_GATE_SUS, 5, on_dc);
+}
+
+static void config_deep_s3(int on_ac, int on_dc)
+{
+ config_deep_sX(S3_PWRGATE_POL, S3AC_GATE_SUS, 3, on_ac);
+ config_deep_sX(S3_PWRGATE_POL, S3DC_GATE_SUS, 3, on_dc);
+}
+
+static void config_deep_sx(uint32_t deepsx_config)
+{
+ uint32_t reg;
+ uint8_t *pmcbase = pmc_mmio_regs();
+
+ reg = read32(pmcbase + DSX_CFG);
+ reg &= ~DSX_CFG_MASK;
+ reg |= deepsx_config;
+ write32(pmcbase + DSX_CFG, reg);
+}
+
+static void pmc_init(struct device *dev)
+{
+ config_t *config = dev->chip_info;
+
+ rtc_init();
+
+ /* Initialize power management */
+ pmc_gpe_init();
+
+ pch_set_acpi_mode();
+
+ config_deep_s3(config->deep_s3_enable_ac, config->deep_s3_enable_dc);
+ config_deep_s5(config->deep_s5_enable_ac, config->deep_s5_enable_dc);
+ config_deep_sx(config->deep_sx_config);
+}
+
+static struct device_operations device_ops = {
+ .read_resources = &pch_pmc_read_resources,
+ .set_resources = &pci_dev_set_resources,
+ .enable_resources = &pci_dev_enable_resources,
+ .init = &pmc_init,
+ .scan_bus = &scan_lpc_bus,
+};
+
+static const unsigned short pci_device_ids[] = {
+ PCI_DEVICE_ID_INTEL_CNL_PMC,
+ 0
+};
+
+static const struct pci_driver pch_lpc __pci_driver = {
+ .ops = &device_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .devices = pci_device_ids,
+};