1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/* 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/device_nvs.h>
#include <soc/iosf.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_braswell_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->sd_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_VID_INTEL,
.device = SD_DEVID,
};
|
