2 * (C) Copyright 2008-2009 coresystems GmbH
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of
7 * the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
21 #include <device/device.h>
22 #include <device/pci.h>
23 #include <device/pci_ops.h>
24 #include <device/pci_ids.h>
25 #include <console/console.h>
26 #include <device/cardbus.h>
31 static int cardbus_count = 0;
34 static void pci7420_cardbus_init(device_t dev)
40 struct southbridge_ti_pci7420_config *config = dev->chip_info;
41 int smartcard_enabled = 0;
43 printk_debug("TI PCI7420/7620 init\n");
46 printk_debug("PCI7420: No configuration found.\n");
48 smartcard_enabled = config->smartcard_enabled;
51 reg32 = pci_read_config32(dev, SYSCTL);
53 pci_write_config32(dev, SYSCTL, reg32);
56 reg8 = pci_read_config8(dev, CARDCTL);
58 pci_write_config8(dev, CARDCTL, reg8);
60 /* Power switch select and FM disable */
61 reg16 = pci_read_config16(dev, GENCTL);
62 reg16 |= P12V_SW_SEL; // 12V capable power switch
63 if (smartcard_enabled == 0)
65 pci_write_config16(dev, GENCTL, reg16);
67 /* Multifunction routing status */
68 pci_write_config32(dev, MFUNC, 0x018a1b22);
71 /* This is a workaround for buggy kernels. This should
72 * probably be read from the device tree, but as long
73 * as only one mainboard is using this bridge it does
76 * Basically what we do here is assign INTA to the first
77 * cardbus controller, and INTB to the second one. We know
78 * there are only two of them.
80 pci_write_config8(dev, PCI_INTERRUPT_PIN, cardbus_count);
85 void pci7420_cardbus_read_resources(device_t dev)
87 cardbus_read_resources(dev);
90 void pci7420_cardbus_set_resources(device_t dev)
92 printk_debug("%s In set resources \n",dev_path(dev));
94 pci_dev_set_resources(dev);
96 printk_debug("%s done set resources \n",dev_path(dev));
99 static struct device_operations ti_pci7420_ops = {
100 .read_resources = pci7420_cardbus_read_resources,
101 .set_resources = pci7420_cardbus_set_resources,
102 .enable_resources = cardbus_enable_resources,
103 .init = pci7420_cardbus_init,
104 .scan_bus = cardbus_scan_bridge,
107 static const struct pci_driver ti_pci7420_driver __pci_driver = {
108 .ops = &ti_pci7420_ops,
113 static const struct pci_driver ti_pci7620_driver __pci_driver = {
114 .ops = &ti_pci7420_ops,
119 static void ti_pci7420_enable_dev(device_t dev)
121 /* Nothing here yet */
124 struct chip_operations southbridge_ti_pci7420_ops = {
125 CHIP_NAME("Texas Instruments PCI7420/7620 Cardbus Controller")
126 .enable_dev = ti_pci7420_enable_dev,