1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 #include <amdblocks/gpio.h>
4 #include <amdblocks/smi.h>
5 #include <amdblocks/xhci.h>
6 #include <bootstate.h>
7 #include <device/device.h>
8 #include <drivers/usb/pci_xhci/pci_xhci.h>
9 #include <soc/pci_devs.h>
10 #include <soc/smi.h>
11
12 static const struct sci_source xhci_sci_sources[] = {
13 {
14 .scimap = SMITYPE_XHC0_PME,
15 .gpe = XHCI_GEVENT,
16 .direction = SMI_SCI_LVL_HIGH,
17 .level = SMI_SCI_EDG
18 },
19 {
20 .scimap = SMITYPE_XHC1_PME,
21 .gpe = XHCI_GEVENT,
22 .direction = SMI_SCI_LVL_HIGH,
23 .level = SMI_SCI_EDG
24 }
25 };
26
pci_xhci_get_wake_gpe(const struct device * dev,int * gpe)27 enum cb_err pci_xhci_get_wake_gpe(const struct device *dev, int *gpe)
28 {
29 if (dev->upstream->dev->path.type != DEVICE_PATH_PCI)
30 return CB_ERR_ARG;
31
32 if (dev->upstream->dev->path.pci.devfn != PCIE_ABC_A_DEVFN)
33 return CB_ERR_ARG;
34
35 if (dev->path.type != DEVICE_PATH_PCI)
36 return CB_ERR_ARG;
37
38 if (dev->path.pci.devfn == XHCI0_DEVFN)
39 *gpe = xhci_sci_sources[0].gpe;
40 else if (dev->path.pci.devfn == XHCI1_DEVFN)
41 *gpe = xhci_sci_sources[1].gpe;
42 else
43 return CB_ERR_ARG;
44
45 return CB_SUCCESS;
46 }
47
configure_xhci_sci(void * unused)48 static void configure_xhci_sci(void *unused)
49 {
50 gpe_configure_sci(xhci_sci_sources, ARRAY_SIZE(xhci_sci_sources));
51 }
52
53 BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_ENTRY, configure_xhci_sci, NULL);
54