| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ops.h> |
| #include <console/console.h> |
| #include <device/cardbus.h> |
| #include "pci7420.h" |
| #include "chip.h" |
| |
| #ifdef ODD_IRQ_FIXUP |
| static int cardbus_count = 0; |
| #endif |
| |
| static void pci7420_cardbus_init(struct device *dev) |
| { |
| u8 reg8; |
| u16 reg16; |
| u32 reg32; |
| |
| struct southbridge_ti_pci7420_config *config = dev->chip_info; |
| int smartcard_enabled = 0; |
| |
| printk(BIOS_DEBUG, "TI PCI7420/7620 init\n"); |
| |
| if (!config) { |
| printk(BIOS_DEBUG, "PCI7420: No configuration found.\n"); |
| } else { |
| smartcard_enabled = config->smartcard_enabled; |
| } |
| |
| reg32 = pci_read_config32(dev, SYSCTL); |
| reg32 |= RIMUX; |
| pci_write_config32(dev, SYSCTL, reg32); |
| |
| /* Enable SPKROUT */ |
| reg8 = pci_read_config8(dev, CARDCTL); |
| reg8 |= SPKROUTEN; |
| pci_write_config8(dev, CARDCTL, reg8); |
| |
| /* Power switch select and FM disable */ |
| reg16 = pci_read_config16(dev, GENCTL); |
| reg16 |= P12V_SW_SEL; // 12V capable power switch |
| if (smartcard_enabled == 0) |
| reg16 |= DISABLE_FM; |
| pci_write_config16(dev, GENCTL, reg16); |
| |
| /* Multifunction routing status */ |
| pci_write_config32(dev, MFUNC, 0x018a1b22); |
| |
| #ifdef ODD_IRQ_FIXUP |
| /* This is a workaround for buggy kernels. This should |
| * probably be read from the device tree, but as long |
| * as only one mainboard is using this bridge it does |
| * not matter. |
| * |
| * Basically what we do here is assign INTA to the first |
| * cardbus controller, and INTB to the second one. We know |
| * there are only two of them. |
| */ |
| pci_write_config8(dev, PCI_INTERRUPT_PIN, cardbus_count); |
| cardbus_count++; |
| #endif |
| } |
| |
| static void pci7420_cardbus_read_resources(struct device *dev) |
| { |
| cardbus_read_resources(dev); |
| } |
| |
| static void pci7420_cardbus_set_resources(struct device *dev) |
| { |
| printk(BIOS_DEBUG, "%s In set resources\n",dev_path(dev)); |
| |
| pci_dev_set_resources(dev); |
| |
| printk(BIOS_DEBUG, "%s done set resources\n",dev_path(dev)); |
| } |
| |
| static struct device_operations ti_pci7420_ops = { |
| .read_resources = pci7420_cardbus_read_resources, |
| .set_resources = pci7420_cardbus_set_resources, |
| .enable_resources = cardbus_enable_resources, |
| .init = pci7420_cardbus_init, |
| .scan_bus = pci_scan_bridge, |
| }; |
| |
| static const struct pci_driver ti_pci7420_driver __pci_driver = { |
| .ops = &ti_pci7420_ops, |
| .vendor = 0x104c, |
| .device = 0xac8e, |
| }; |
| |
| static const struct pci_driver ti_pci7620_driver __pci_driver = { |
| .ops = &ti_pci7420_ops, |
| .vendor = 0x104c, |
| .device = 0xac8d, |
| }; |
| |
| struct chip_operations southbridge_ti_pci7420_ops = { |
| CHIP_NAME("Texas Instruments PCI7420/7620 Cardbus Controller") |
| }; |