diff options
Diffstat (limited to 'src/mainboard/lenovo/t400/hybrid_graphics.c')
-rw-r--r-- | src/mainboard/lenovo/t400/hybrid_graphics.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/src/mainboard/lenovo/t400/hybrid_graphics.c b/src/mainboard/lenovo/t400/hybrid_graphics.c deleted file mode 100644 index b313ffa49c..0000000000 --- a/src/mainboard/lenovo/t400/hybrid_graphics.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 secunet Security Networks AG - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; version 2 of - * the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ -#include <stdint.h> -#include <string.h> -#include <southbridge/intel/common/gpio.h> -#include <northbridge/intel/gm45/gm45.h> -#include <console/console.h> -#include <option.h> - -#define HYBRID_GRAPHICS_INTEGRATED_ONLY 0 -#define HYBRID_GRAPHICS_DISCRETE_ONLY 1 -#define HYBRID_GRAPHICS_SWITCHABLE 2 - -#define MUX_GPIO 22 -#define BCL_CTL_GPIO 19 -#define GFX_PWR_EN_GPIO 49 - -#define HYBRID_DETECT_GPIO 21 - -void hybrid_graphics_init(sysinfo_t *sysinfo); - -static bool hybrid_graphics_installed(void) -{ - if (get_gpio(HYBRID_DETECT_GPIO)) - return false; - else - return true; -} - -void hybrid_graphics_init(sysinfo_t *sysinfo) -{ - /* Set default mode */ - uint8_t hybrid_graphics_mode = - HYBRID_GRAPHICS_INTEGRATED_ONLY; - - if (!hybrid_graphics_installed()) { - printk(BIOS_DEBUG, "Hybrid graphics not installed.\n"); - /* The display is not connected to a mux or switchable. */ - sysinfo->enable_igd = 1; - sysinfo->enable_peg = 0; - return; - } - - printk(BIOS_DEBUG, "Hybrid graphics available: "); - get_option(&hybrid_graphics_mode, "hybrid_graphics_mode"); - - /* Select appropriate hybrid graphics device */ - switch (hybrid_graphics_mode) { - default: - case HYBRID_GRAPHICS_INTEGRATED_ONLY: - printk(BIOS_DEBUG, "Activating Integrated Only.\n"); - set_gpio(MUX_GPIO, GPIO_LEVEL_LOW); - set_gpio(BCL_CTL_GPIO, GPIO_LEVEL_LOW); - set_gpio(GFX_PWR_EN_GPIO, GPIO_LEVEL_LOW); - - sysinfo->enable_igd = 1; - sysinfo->enable_peg = 0; - break; - case HYBRID_GRAPHICS_DISCRETE_ONLY: - printk(BIOS_DEBUG, "Activating Discrete Only.\n"); - set_gpio(MUX_GPIO, GPIO_LEVEL_HIGH); - set_gpio(BCL_CTL_GPIO, GPIO_LEVEL_HIGH); - set_gpio(GFX_PWR_EN_GPIO, GPIO_LEVEL_HIGH); - - sysinfo->enable_igd = 0; - sysinfo->enable_peg = 1; - break; - case HYBRID_GRAPHICS_SWITCHABLE: - printk(BIOS_DEBUG, "Activating Switchable (both GPUs).\n"); - set_gpio(MUX_GPIO, GPIO_LEVEL_LOW); - set_gpio(BCL_CTL_GPIO, GPIO_LEVEL_LOW); - set_gpio(GFX_PWR_EN_GPIO, GPIO_LEVEL_HIGH); - - sysinfo->enable_igd = 1; - sysinfo->enable_peg = 1; - break; - } -} |