| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <device/pci_ops.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| |
| #include <soc/iosf.h> |
| #include <soc/nvs.h> |
| #include <soc/pci_devs.h> |
| #include <soc/ramstage.h> |
| #include "chip.h" |
| |
| #define CAP_OVERRIDE_LOW 0xa0 |
| #define CAP_OVERRIDE_HIGH 0xa4 |
| #define USE_CAP_OVERRIDES (1 << 31) |
| |
| static void sd_init(struct device *dev) |
| { |
| struct soc_intel_baytrail_config *config = config_of(dev); |
| |
| if (config->sdcard_cap_low != 0 || config->sdcard_cap_high != 0) { |
| printk(BIOS_DEBUG, "Overriding SD Card controller caps.\n"); |
| pci_write_config32(dev, CAP_OVERRIDE_LOW, config->sdcard_cap_low); |
| pci_write_config32(dev, CAP_OVERRIDE_HIGH, config->sdcard_cap_high | |
| USE_CAP_OVERRIDES); |
| } |
| |
| if (config->scc_acpi_mode) |
| scc_enable_acpi_mode(dev, SCC_SD_CTL, SCC_NVS_SD); |
| } |
| |
| static const struct device_operations device_ops = { |
| .read_resources = pci_dev_read_resources, |
| .set_resources = pci_dev_set_resources, |
| .enable_resources = pci_dev_enable_resources, |
| .init = sd_init, |
| .ops_pci = &soc_pci_ops, |
| }; |
| |
| static const struct pci_driver southcluster __pci_driver = { |
| .ops = &device_ops, |
| .vendor = PCI_VENDOR_ID_INTEL, |
| .device = SD_DEVID, |
| }; |