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
47
48
49
50
51
52
|
/* SPDX-License-Identifier: GPL-2.0-only */
#include <stdint.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/cardbus.h>
static void pci7xx1_enable(struct device *const dev)
{
printk(BIOS_DEBUG, "%s: TI PCI7xx1 media controller\n", __func__);
if (PCI_FUNC(dev->path.pci.devfn) == 0) {
const unsigned int slot = PCI_SLOT(dev->path.pci.devfn);
int fn;
/* Hide functions based on devicetree info. */
u16 gcr = pci_read_config16(dev, 0x86);
for (fn = 5; fn > 0; --fn) {
const struct device *const d =
pcidev_path_behind(dev->upstream, PCI_DEVFN(slot, fn));
if (!d || d->enabled) continue;
printk(BIOS_DEBUG,
"%s: Hiding function #%d.\n", __func__, fn);
switch (fn) {
case 1: gcr |= 1 << 4; break; /* CardBus B */
case 2: gcr |= 1 << 3; break; /* OHCI 1394 */
case 3: gcr |= 1 << 5; break; /* Flash media */
case 4: gcr |= 1 << 6; break; /* SD card */
case 5: gcr |= 1 << 7; break; /* Smart Card */
}
}
pci_write_config16(dev, 0x86, gcr);
}
}
static struct device_operations device_ops = {
.read_resources = cardbus_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = cardbus_enable_resources,
.init = 0,
.scan_bus = pci_scan_bridge,
.enable = pci7xx1_enable,
.reset_bus = pci_bus_reset,
};
static const struct pci_driver ti_pci7xx1 __pci_driver = {
.ops = &device_ops,
.vendor = 0x104c,
.device = 0x8031,
};
|
