| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <types.h> |
| #include <device/device.h> |
| #include <device/pci_ops.h> |
| #include <console/console.h> |
| #if CONFIG(VGA_ROM_RUN) |
| #include <x86emu/x86emu.h> |
| #endif |
| #include <acpi/acpi.h> |
| #include <arch/io.h> |
| #include <arch/interrupt.h> |
| #include "onboard.h" |
| #include "ec.h" |
| #include <southbridge/intel/bd82x6x/pch.h> |
| #include <southbridge/intel/common/gpio.h> |
| #include <smbios.h> |
| #include <ec/google/chromeec/ec.h> |
| #include <vendorcode/google/chromeos/chromeos.h> |
| |
| #if CONFIG(VGA_ROM_RUN) |
| static int int15_handler(void) |
| { |
| int res = 0; |
| |
| printk(BIOS_DEBUG, "%s: INT15 function %04x!\n", |
| __func__, X86_AX); |
| |
| switch (X86_AX) { |
| case 0x5f34: |
| /* |
| * Set Panel Fitting Hook: |
| * bit 2 = Graphics Stretching |
| * bit 1 = Text Stretching |
| * bit 0 = Centering (do not set with bit1 or bit2) |
| * 0 = video BIOS default |
| */ |
| X86_AX = 0x005f; |
| X86_CL = 0x00; /* Use video BIOS default */ |
| res = 1; |
| break; |
| case 0x5f35: |
| /* |
| * Boot Display Device Hook: |
| * bit 0 = CRT |
| * bit 1 = TV (eDP) |
| * bit 2 = EFP |
| * bit 3 = LFP |
| * bit 4 = CRT2 |
| * bit 5 = TV2 (eDP) |
| * bit 6 = EFP2 |
| * bit 7 = LFP2 |
| */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0000; /* Use video BIOS default */ |
| res = 1; |
| break; |
| case 0x5f51: |
| /* |
| * Hook to select active LFP configuration: |
| * 00h = No LVDS, VBIOS does not enable LVDS |
| * 01h = Int-LVDS, LFP driven by integrated LVDS decoder |
| * 02h = SVDO-LVDS, LFP driven by SVDO decoder |
| * 03h = eDP, LFP Driven by Int-DisplayPort encoder |
| */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0003; /* eDP */ |
| res = 1; |
| break; |
| case 0x5f70: |
| switch (X86_CH) { |
| case 0: |
| /* Get Mux */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0000; |
| res = 1; |
| break; |
| case 1: |
| /* Set Mux */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0000; |
| res = 1; |
| break; |
| case 2: |
| /* Get SG/Non-SG mode */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0000; |
| res = 1; |
| break; |
| default: |
| /* Interrupt was not handled */ |
| printk(BIOS_DEBUG, "Unknown INT15 5f70 function: 0x%02x\n", |
| X86_CH); |
| break; |
| } |
| break; |
| case 0x5fac: |
| res = 1; |
| break; |
| default: |
| printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", X86_AX); |
| break; |
| } |
| return res; |
| } |
| #endif |
| |
| static void mainboard_init(struct device *dev) |
| { |
| uint32_t board_version = 0; |
| |
| /* Initialize the Embedded Controller */ |
| link_ec_init(); |
| |
| google_chromeec_get_board_version(&board_version); |
| if (board_version == 0) { |
| /* If running on proto1 - enable reversion of gpio11. */ |
| u32 gpio_inv; |
| u16 gpio_base = pci_read_config16 |
| (pcidev_on_root(0x1f, 0), GPIO_BASE) & |
| 0xfffc; |
| u16 gpio_inv_addr = gpio_base + GPI_INV; |
| gpio_inv = inl(gpio_inv_addr); |
| outl(gpio_inv | (1 << 11), gpio_inv_addr); |
| } |
| } |
| |
| static int link_onboard_smbios_data(struct device *dev, int *handle, |
| unsigned long *current) |
| { |
| int len = 0; |
| |
| len += smbios_write_type41( |
| current, handle, |
| BOARD_LIGHTSENSOR_NAME, /* name */ |
| BOARD_LIGHTSENSOR_IRQ, /* instance */ |
| 0, /* segment */ |
| BOARD_LIGHTSENSOR_I2C_ADDR, /* bus */ |
| 0, /* device */ |
| 0, /* function */ |
| SMBIOS_DEVICE_TYPE_OTHER); /* device type */ |
| |
| len += smbios_write_type41( |
| current, handle, |
| BOARD_TRACKPAD_NAME, /* name */ |
| BOARD_TRACKPAD_IRQ, /* instance */ |
| 0, /* segment */ |
| BOARD_TRACKPAD_I2C_ADDR, /* bus */ |
| 0, /* device */ |
| 0, /* function */ |
| SMBIOS_DEVICE_TYPE_OTHER); /* device type */ |
| |
| len += smbios_write_type41( |
| current, handle, |
| BOARD_TOUCHSCREEN_NAME, /* name */ |
| BOARD_TOUCHSCREEN_IRQ, /* instance */ |
| 0, /* segment */ |
| BOARD_TOUCHSCREEN_I2C_ADDR, /* bus */ |
| 0, /* device */ |
| 0, /* function */ |
| SMBIOS_DEVICE_TYPE_OTHER); /* device type */ |
| |
| return len; |
| } |
| |
| // mainboard_enable is executed as first thing after |
| // enumerate_buses(). |
| |
| static void mainboard_enable(struct device *dev) |
| { |
| dev->ops->init = mainboard_init; |
| dev->ops->get_smbios_data = link_onboard_smbios_data; |
| dev->ops->acpi_inject_dsdt = chromeos_dsdt_generator; |
| #if CONFIG(VGA_ROM_RUN) |
| /* Install custom int15 handler for VGA OPROM */ |
| mainboard_interrupt_handlers(0x15, &int15_handler); |
| #endif |
| } |
| |
| struct chip_operations mainboard_ops = { |
| .enable_dev = mainboard_enable, |
| }; |