1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <device/pci_ops.h>
4 #include <console/console.h>
5 #include <device/device.h>
6 #include <device/pci.h>
7 #include <device/pci_ids.h>
8
9 #include <soc/device_nvs.h>
10 #include <soc/iosf.h>
11 #include <soc/pci_devs.h>
12 #include <soc/ramstage.h>
13 #include "chip.h"
14
15 #define CAP_OVERRIDE_LOW 0xa0
16 #define CAP_OVERRIDE_HIGH 0xa4
17 #define USE_CAP_OVERRIDES (1 << 31)
18
sd_init(struct device * dev)19 static void sd_init(struct device *dev)
20 {
21 struct soc_intel_baytrail_config *config = config_of(dev);
22
23 if (config->sdcard_cap_low != 0 || config->sdcard_cap_high != 0) {
24 printk(BIOS_DEBUG, "Overriding SD Card controller caps.\n");
25 pci_write_config32(dev, CAP_OVERRIDE_LOW, config->sdcard_cap_low);
26 pci_write_config32(dev, CAP_OVERRIDE_HIGH, config->sdcard_cap_high |
27 USE_CAP_OVERRIDES);
28 }
29
30 if (config->scc_acpi_mode)
31 scc_enable_acpi_mode(dev, SCC_SD_CTL, SCC_NVS_SD);
32 }
33
34 static const struct device_operations device_ops = {
35 .read_resources = pci_dev_read_resources,
36 .set_resources = pci_dev_set_resources,
37 .enable_resources = pci_dev_enable_resources,
38 .init = sd_init,
39 .ops_pci = &soc_pci_ops,
40 };
41
42 static const struct pci_driver southcluster __pci_driver = {
43 .ops = &device_ops,
44 .vendor = PCI_VID_INTEL,
45 .device = SD_DEVID,
46 };
47