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Diffstat (limited to 'src/soc/intel/elkhartlake/chip.c')
-rw-r--r--src/soc/intel/elkhartlake/chip.c180
1 files changed, 180 insertions, 0 deletions
diff --git a/src/soc/intel/elkhartlake/chip.c b/src/soc/intel/elkhartlake/chip.c
new file mode 100644
index 0000000000..e4884efea1
--- /dev/null
+++ b/src/soc/intel/elkhartlake/chip.c
@@ -0,0 +1,180 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/device.h>
+#include <device/pci.h>
+#include <fsp/api.h>
+#include <fsp/util.h>
+#include <intelblocks/acpi.h>
+#include <intelblocks/cfg.h>
+#include <intelblocks/itss.h>
+#include <intelblocks/pcie_rp.h>
+#include <intelblocks/xdci.h>
+#include <romstage_handoff.h>
+#include <soc/intel/common/vbt.h>
+#include <soc/itss.h>
+#include <soc/pci_devs.h>
+#include <soc/ramstage.h>
+#include <soc/soc_chip.h>
+
+static const struct pcie_rp_group pch_rp_groups[] = {
+ { .slot = PCH_DEV_SLOT_PCIE, .count = 8 },
+ { 0 }
+};
+
+#if CONFIG(HAVE_ACPI_TABLES)
+const char *soc_acpi_name(const struct device *dev)
+{
+ if (dev->path.type == DEVICE_PATH_DOMAIN)
+ return "PCI0";
+
+ if (dev->path.type == DEVICE_PATH_USB) {
+ switch (dev->path.usb.port_type) {
+ case 0:
+ /* Root Hub */
+ return "RHUB";
+ case 2:
+ /* USB2 ports */
+ switch (dev->path.usb.port_id) {
+ case 0: return "HS01";
+ case 1: return "HS02";
+ case 2: return "HS03";
+ case 3: return "HS04";
+ case 4: return "HS05";
+ case 5: return "HS06";
+ case 6: return "HS07";
+ case 7: return "HS08";
+ case 8: return "HS09";
+ case 9: return "HS10";
+ }
+ break;
+ case 3:
+ /* USB3 ports */
+ switch (dev->path.usb.port_id) {
+ case 0: return "SS01";
+ case 1: return "SS02";
+ case 2: return "SS03";
+ case 3: return "SS04";
+ }
+ break;
+ }
+ return NULL;
+ }
+ if (dev->path.type != DEVICE_PATH_PCI)
+ return NULL;
+
+ switch (dev->path.pci.devfn) {
+ case SA_DEVFN_ROOT: return "MCHC";
+ case SA_DEVFN_IPU: return "IPU0";
+ case PCH_DEVFN_ISH: return "ISHB";
+ case PCH_DEVFN_XHCI: return "XHCI";
+ case PCH_DEVFN_I2C0: return "I2C0";
+ case PCH_DEVFN_I2C1: return "I2C1";
+ case PCH_DEVFN_I2C2: return "I2C2";
+ case PCH_DEVFN_I2C3: return "I2C3";
+ case PCH_DEVFN_I2C4: return "I2C4";
+ case PCH_DEVFN_I2C5: return "I2C5";
+ case PCH_DEVFN_SATA: return "SATA";
+ case PCH_DEVFN_PCIE1: return "RP01";
+ case PCH_DEVFN_PCIE2: return "RP02";
+ case PCH_DEVFN_PCIE3: return "RP03";
+ case PCH_DEVFN_PCIE4: return "RP04";
+ case PCH_DEVFN_PCIE5: return "RP05";
+ case PCH_DEVFN_PCIE6: return "RP06";
+ case PCH_DEVFN_PCIE7: return "RP07";
+ case PCH_DEVFN_PCIE8: return "RP08";
+ case PCH_DEVFN_PCIE9: return "RP09";
+ case PCH_DEVFN_PCIE10: return "RP10";
+ case PCH_DEVFN_PCIE11: return "RP11";
+ case PCH_DEVFN_PCIE12: return "RP12";
+ case PCH_DEVFN_UART0: return "UAR0";
+ case PCH_DEVFN_UART1: return "UAR1";
+ case PCH_DEVFN_UART2: return "UAR2";
+ case PCH_DEVFN_GSPI0: return "SPI0";
+ case PCH_DEVFN_GSPI1: return "SPI1";
+ case PCH_DEVFN_GSPI2: return "SPI2";
+ case PCH_DEVFN_GSPI3: return "SPI3";
+ case PCH_DEVFN_EMMC: return "EMMC";
+ case PCH_DEVFN_SDCARD: return "SDXC";
+ /* Keeping ACPI device name coherent with ec.asl */
+ case PCH_DEVFN_ESPI: return "LPCB";
+ case PCH_DEVFN_HDA: return "HDAS";
+ case PCH_DEVFN_SMBUS: return "SBUS";
+ case PCH_DEVFN_GBE: return "GLAN";
+ }
+
+ return NULL;
+}
+#endif
+
+/* SoC rotine to fill GPIO PM mask and value for GPIO_MISCCFG register */
+static void soc_fill_gpio_pm_configuration(void)
+{
+ uint8_t value[TOTAL_GPIO_COMM];
+ const config_t *config = config_of_soc();
+
+ if (config->gpio_override_pm)
+ memcpy(value, config->gpio_pm, sizeof(uint8_t) *
+ TOTAL_GPIO_COMM);
+ else
+ memset(value, MISCCFG_ENABLE_GPIO_PM_CONFIG, sizeof(uint8_t) *
+ TOTAL_GPIO_COMM);
+
+ gpio_pm_configure(value, TOTAL_GPIO_COMM);
+}
+
+void soc_init_pre_device(void *chip_info)
+{
+ /* Snapshot the current GPIO IRQ polarities. FSP is setting a
+ * default policy that doesn't honor boards' requirements. */
+ itss_snapshot_irq_polarities(GPIO_IRQ_START, GPIO_IRQ_END);
+
+ /* Perform silicon specific init. */
+ fsp_silicon_init(romstage_handoff_is_resume());
+
+ /* Display FIRMWARE_VERSION_INFO_HOB */
+ fsp_display_fvi_version_hob();
+
+ /* Restore GPIO IRQ polarities back to previous settings. */
+ itss_restore_irq_polarities(GPIO_IRQ_START, GPIO_IRQ_END);
+
+ soc_fill_gpio_pm_configuration();
+
+ /* swap enabled PCI ports in device tree if needed */
+ pcie_rp_update_devicetree(pch_rp_groups);
+}
+
+static struct device_operations pci_domain_ops = {
+ .read_resources = &pci_domain_read_resources,
+ .set_resources = &pci_domain_set_resources,
+ .scan_bus = &pci_domain_scan_bus,
+#if CONFIG(HAVE_ACPI_TABLES)
+ .acpi_name = &soc_acpi_name,
+#endif
+};
+
+static struct device_operations cpu_bus_ops = {
+ .read_resources = noop_read_resources,
+ .set_resources = noop_set_resources,
+#if CONFIG(HAVE_ACPI_TABLES)
+ .acpi_fill_ssdt = generate_cpu_entries,
+#endif
+};
+
+extern struct device_operations pmc_ops;
+static void soc_enable(struct device *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;
+ else if (dev->path.type == DEVICE_PATH_PCI &&
+ dev->path.pci.devfn == PCH_DEVFN_PMC)
+ dev->ops = &pmc_ops;
+}
+
+struct chip_operations soc_intel_elkhartlake_ops = {
+ CHIP_NAME("Intel Elkhartlake")
+ .enable_dev = &soc_enable,
+ .init = &soc_init_pre_device,
+};