mainboard.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <arch/io.h>
#include <device/device.h>
#include <drivers/intel/gma/int15.h>
#include <pc80/keyboard.h>
#include <ec/acpi/ec.h>
 
static void ec_setup(void)
{
        /* Thermal limits?  Values are from ectool's RAM dump. */
        ec_write(0xd1, 0x57); /* CPUH */
        ec_write(0xd2, 0xc9); /* CPUL */
        ec_write(0xd4, 0x64); /* SYSH */
        ec_write(0xd5, 0xc9); /* SYSL */
 
        send_ec_command(0x04); /* Set_SMI_Enable */
        send_ec_command(0xab); /* Set_ACPI_Disable */
        send_ec_command(0xac); /* Clr_SYS_Flag? well, why not? */
        send_ec_command(0xad); /* Set_Thml_Value */
}
 
static void mainboard_enable(struct device *dev)
{
        ec_setup();
        /* LCD panel type is SIO GPIO40-43.
           It's controlled by a DIP switch but was always
           set to 4 while only values of 5 and 6 worked. */
        install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_INT_LVDS, GMA_INT15_PANEL_FIT_CENTERING, GMA_INT15_BOOT_DISPLAY_DEFAULT, (inb(0x60f) & 0x0f) + 1);
 
        /* We have no driver for the embedded controller since the firmware
           does most of the job. Hence, initialize keyboards here. */
        pc_keyboard_init(NO_AUX_DEVICE);
}
 
struct chip_operations mainboard_ops = {
        .enable_dev = mainboard_enable,
};