e58c6f5dfa
This cleans up some unneeded no-ops in the mainboard.c files of baytrail boards. Change-Id: I7662f6e860d672a99b211488122bec073cc78acf Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44136 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Máté Kukri <kukri.mate@gmail.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
162 lines
3.7 KiB
C
162 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <device/device.h>
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#include <console/console.h>
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#if CONFIG(VGA_ROM_RUN)
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#include <x86emu/x86emu.h>
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#endif
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#include <arch/interrupt.h>
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#include <smbios.h>
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#include "ec.h"
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#include <variant/onboard.h>
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#include <soc/gpio.h>
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#include <bootstate.h>
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#include <vendorcode/google/chromeos/chromeos.h>
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#if CONFIG(VGA_ROM_RUN)
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static int int15_handler(void)
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{
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int res = 1;
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printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n",
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__func__, X86_AX, X86_BX, X86_CX, X86_DX);
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switch (X86_AX) {
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case 0x5f34:
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/*
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* Set Panel Fitting Hook:
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* bit 2 = Graphics Stretching
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* bit 1 = Text Stretching
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* bit 0 = Centering (do not set with bit1 or bit2)
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* 0 = video BIOS default
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*/
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X86_AX = 0x005f;
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X86_CX = 0x0001;
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res = 1;
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break;
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case 0x5f35:
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/*
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* Boot Display Device Hook:
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* bit 0 = CRT
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* bit 1 = TV
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* bit 2 = EFP (HDMI)
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* bit 3 = LFP (eDP)*
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* bit 4 = CRT2
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* bit 5 = TV2
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* bit 6 = EFP2
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* bit 7 = LFP2
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*/
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X86_AX = 0x005f;
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X86_CX = 0x0008;
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res = 1;
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break;
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case 0x5f51:
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/*
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* Hook to select active LFP configuration:
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* 00h = No LVDS, VBIOS does not enable LVDS
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* 01h = Int-LVDS, LFP driven by integrated LVDS decoder
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* 02h = SVDO-LVDS, LFP driven by SVDO decoder
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* 03h = eDP, LFP Driven by Int-DisplayPort encoder
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*/
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X86_AX = 0x005f;
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X86_CX = 0x0003;
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res = 1;
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break;
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case 0x5f70:
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switch ((X86_CX >> 8) & 0xff) {
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case 0:
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/* Get Mux */
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X86_AX = 0x005f;
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X86_CX = 0x0000;
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res = 1;
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break;
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case 1:
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/* Set Mux */
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X86_AX = 0x005f;
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X86_CX = 0x0000;
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res = 1;
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break;
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case 2:
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/* Get SG/Non-SG mode */
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X86_AX = 0x005f;
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X86_CX = 0x0000;
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res = 1;
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break;
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default:
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/* Interrupt was not handled */
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printk(BIOS_DEBUG,
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"Unknown INT15 5f70 function: 0x%02x\n",
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((X86_CX >> 8) & 0xff));
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break;
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}
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break;
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default:
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printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", X86_AX);
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break;
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}
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return res;
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}
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#endif
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static void mainboard_init(struct device *dev)
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{
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mainboard_ec_init();
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#if CONFIG(BOARD_GOOGLE_NINJA) || CONFIG(BOARD_GOOGLE_SUMO)
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lan_init();
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#endif
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}
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static int mainboard_smbios_data(struct device *dev, int *handle,
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unsigned long *current)
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{
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int len = 0;
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#ifdef BOARD_TRACKPAD_NAME
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len += smbios_write_type41(
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current, handle,
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BOARD_TRACKPAD_NAME, /* name */
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BOARD_TRACKPAD_IRQ, /* instance */
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BOARD_TRACKPAD_I2C_BUS, /* segment */
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BOARD_TRACKPAD_I2C_ADDR, /* bus */
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0, /* device */
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0, /* function */
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SMBIOS_DEVICE_TYPE_OTHER); /* device type */
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#endif
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#ifdef BOARD_TOUCHSCREEN_NAME
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len += smbios_write_type41(
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current, handle,
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BOARD_TOUCHSCREEN_NAME, /* name */
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BOARD_TOUCHSCREEN_IRQ, /* instance */
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BOARD_TOUCHSCREEN_I2C_BUS, /* segment */
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BOARD_TOUCHSCREEN_I2C_ADDR, /* bus */
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0, /* device */
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0, /* function */
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SMBIOS_DEVICE_TYPE_OTHER); /* device type */
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#endif
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return len;
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}
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// mainboard_enable is executed as first thing after
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// enumerate_buses().
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static void mainboard_enable(struct device *dev)
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{
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dev->ops->init = mainboard_init;
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dev->ops->get_smbios_data = mainboard_smbios_data;
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dev->ops->acpi_inject_dsdt = chromeos_dsdt_generator;
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#if CONFIG(VGA_ROM_RUN)
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/* Install custom int15 handler for VGA OPROM */
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mainboard_interrupt_handlers(0x15, &int15_handler);
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#endif
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}
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struct chip_operations mainboard_ops = {
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.enable_dev = mainboard_enable,
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};
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static void edp_vdden_cb(void *unused)
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{
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ncore_select_func(SOC_DDI1_VDDEN_PAD, PAD_FUNC2);
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}
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BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT, edp_vdden_cb, NULL);
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