src/mainboard/roda/rk886ex/mainboard.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <device/device.h>
   5 #include <arch/io.h>
   6 #include <drivers/intel/gma/int15.h>
   7 #include <ec/acpi/ec.h>
   8
   9 #include "m3885.h"
  10
  11 #define DUMP_RUNTIME_REGISTERS 0
  12
  13 static void backlight_enable(void)
  14 {
  15         printk(BIOS_DEBUG, "Display I/O: 0x%02x\n", inb(0x60f));
  16 }
  17
  18 #if DUMP_RUNTIME_REGISTERS
  19 static void dump_runtime_registers(void)
  20 {
  21         int i;
  22
  23         printk(BIOS_DEBUG, "SuperIO runtime register block:\n");
  24         for (i = 0; i < 0x10; i++)
  25                 printk(BIOS_DEBUG, "%02x ", i);
  26         printk(BIOS_DEBUG, "\n");
  27         for (i = 0; i < 0x10; i++)
  28                 printk(BIOS_DEBUG, "%02x ", inb(0x600 +i));
  29         printk(BIOS_DEBUG, "\n");
  30 }
  31 #endif
  32
  33 static void mainboard_final(struct device *dev)
  34 {
  35         /* Enable Dummy DCC ON# for DVI */
  36         printk(BIOS_DEBUG, "Laptop handling...\n");
  37         outb(inb(0x60f) & ~(1 << 5), 0x60f);
  38 }
  39
  40 static void mainboard_enable(struct device *dev)
  41 {
  42         /* Configure the MultiKey controller */
  43
  44         /* Enable LCD Backlight */
  45         backlight_enable();
  46
  47         /* Disable Dummy DCC -> GP45 = 1 */
  48         outb(inb(0x60f) | (1 << 5), 0x60f);
  49
  50         /* LCD panel type is SIO GPIO40-43 */
  51         install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_INT_LVDS, GMA_INT15_PANEL_FIT_DEFAULT, GMA_INT15_BOOT_DISPLAY_DEFAULT, 3);
  52
  53 #if DUMP_RUNTIME_REGISTERS
  54         dump_runtime_registers();
  55 #endif
  56
  57         dev->ops->final = mainboard_final;
  58 }
  59
  60 struct chip_operations mainboard_ops = {
  61         .enable_dev = mainboard_enable,
  62 };