| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <acpi/acpi_device.h> |
| #include <acpi/acpigen.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/pci_ops.h> |
| #include "chip.h" |
| #include <soc/acp.h> |
| #include <soc/acpi.h> |
| #include <soc/pci_devs.h> |
| #include <soc/southbridge.h> |
| #include <amdblocks/acpimmio.h> |
| #include <commonlib/helpers.h> |
| |
| static void acp_update32(uintptr_t bar, uint32_t reg, uint32_t and_mask, uint32_t or_mask) |
| { |
| uint32_t val; |
| |
| val = read32((void *)(bar + reg)); |
| val &= ~and_mask; |
| val |= or_mask; |
| write32((void *)(bar + reg), val); |
| } |
| |
| static void init(struct device *dev) |
| { |
| const struct soc_amd_picasso_config *cfg; |
| struct resource *res; |
| uintptr_t bar; |
| |
| /* Set the proper I2S_PIN_CONFIG state */ |
| cfg = config_of_soc(); |
| |
| res = dev->resource_list; |
| if (!res || !res->base) { |
| printk(BIOS_ERR, "Error, unable to configure pin in %s\n", __func__); |
| return; |
| } |
| |
| bar = (uintptr_t)res->base; |
| acp_update32(bar, ACP_I2S_PIN_CONFIG, PIN_CONFIG_MASK, cfg->acp_pin_cfg); |
| |
| /* Enable ACP_PME_EN and ACP_I2S_WAKE_EN for I2S_WAKE event */ |
| acp_update32(bar, ACP_I2S_WAKE_EN, WAKE_EN_MASK, !!cfg->acp_i2s_wake_enable); |
| acp_update32(bar, ACP_PME_EN, PME_EN_MASK, !!cfg->acp_pme_enable); |
| |
| if (cfg->acp_pin_cfg == I2S_PINS_I2S_TDM) |
| sb_clk_output_48Mhz(); /* Internal connection to I2S */ |
| } |
| |
| static const char *acp_acpi_name(const struct device *dev) |
| { |
| return "ACPD"; |
| } |
| |
| static struct device_operations acp_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = init, |
| .ops_pci = &pci_dev_ops_pci, |
| .scan_bus = scan_static_bus, |
| .acpi_name = acp_acpi_name, |
| .acpi_fill_ssdt = acpi_device_write_pci_dev, |
| }; |
| |
| static const struct pci_driver acp_driver __pci_driver = { |
| .ops = &acp_ops, |
| .vendor = PCI_VENDOR_ID_AMD, |
| .device = PCI_DEVICE_ID_AMD_FAM17H_ACP, |
| }; |