1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2
3 #include <device/device.h>
4 #include <device/pci.h>
5 #include <device/pci_ops.h>
6 #include <console/console.h>
7 #include <device/cardbus.h>
8 #include "pci7420.h"
9 #include "chip.h"
10
pci7420_cardbus_init(struct device * dev)11 static void pci7420_cardbus_init(struct device *dev)
12 {
13 u8 reg8;
14 u16 reg16;
15 u32 reg32;
16
17 struct southbridge_ti_pci7420_config *config = dev->chip_info;
18 int smartcard_enabled = 0;
19
20 printk(BIOS_DEBUG, "TI PCI7420/7620 init\n");
21
22 if (!config) {
23 printk(BIOS_DEBUG, "PCI7420: No configuration found.\n");
24 } else {
25 smartcard_enabled = config->smartcard_enabled;
26 }
27
28 reg32 = pci_read_config32(dev, SYSCTL);
29 reg32 |= RIMUX;
30 pci_write_config32(dev, SYSCTL, reg32);
31
32 /* Enable SPKROUT */
33 reg8 = pci_read_config8(dev, CARDCTL);
34 reg8 |= SPKROUTEN;
35 pci_write_config8(dev, CARDCTL, reg8);
36
37 /* Power switch select and FM disable */
38 reg16 = pci_read_config16(dev, GENCTL);
39 reg16 |= P12V_SW_SEL; // 12V capable power switch
40 if (smartcard_enabled == 0)
41 reg16 |= DISABLE_FM;
42 pci_write_config16(dev, GENCTL, reg16);
43
44 /* Multifunction routing status */
45 pci_write_config32(dev, MFUNC, 0x018a1b22);
46 }
47
pci7420_cardbus_read_resources(struct device * dev)48 static void pci7420_cardbus_read_resources(struct device *dev)
49 {
50 cardbus_read_resources(dev);
51 }
52
pci7420_cardbus_set_resources(struct device * dev)53 static void pci7420_cardbus_set_resources(struct device *dev)
54 {
55 printk(BIOS_DEBUG, "%s In set resources\n",dev_path(dev));
56
57 pci_dev_set_resources(dev);
58
59 printk(BIOS_DEBUG, "%s done set resources\n",dev_path(dev));
60 }
61
62 static struct device_operations ti_pci7420_ops = {
63 .read_resources = pci7420_cardbus_read_resources,
64 .set_resources = pci7420_cardbus_set_resources,
65 .enable_resources = cardbus_enable_resources,
66 .init = pci7420_cardbus_init,
67 .scan_bus = pci_scan_bridge,
68 };
69
70 static const struct pci_driver ti_pci7420_driver __pci_driver = {
71 .ops = &ti_pci7420_ops,
72 .vendor = 0x104c,
73 .device = 0xac8e,
74 };
75
76 static const struct pci_driver ti_pci7620_driver __pci_driver = {
77 .ops = &ti_pci7420_ops,
78 .vendor = 0x104c,
79 .device = 0xac8d,
80 };
81
82 struct chip_operations southbridge_ti_pci7420_ops = {
83 .name = "Texas Instruments PCI7420/7620 Cardbus Controller",
84 };
85