diff options
Diffstat (limited to 'src/northbridge/via/cn400/vga.c')
| -rw-r--r-- | src/northbridge/via/cn400/vga.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/src/northbridge/via/cn400/vga.c b/src/northbridge/via/cn400/vga.c deleted file mode 100644 index a2afdce900..0000000000 --- a/src/northbridge/via/cn400/vga.c +++ /dev/null @@ -1,153 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007 Corey Osgood <corey.osgood@gmail.com> - * - * 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; either version 2 of the License, or - * (at your option) any later version. - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -/* - * Note: Some of the VGA control registers are located on the memory - * controller. Registers are set both in raminit.c and northbridge.c. - */ - -#include <console/console.h> -#include <arch/io.h> -#include <stdint.h> -#include <device/device.h> -#include <device/pci.h> -#include <device/pci_ids.h> -#include <stdlib.h> -#include <string.h> -#include <cpu/cpu.h> -#include <arch/interrupt.h> -#include "northbridge.h" -#include "cn400.h" -#include <x86emu/regs.h> - -static int via_cn400_int15_handler(void) -{ - int res=0; - printk(BIOS_DEBUG, "via_cn400_int15_handler\n"); - switch(X86_EAX & 0xffff) { - case 0x5f19: - break; - case 0x5f18: - X86_EAX=0x5f; - X86_EBX=0x545; // MCLK = 133, 32M frame buffer, 256 M main memory - X86_ECX=0x060; - res=1; - break; - case 0x5f00: - X86_EAX = 0x8600; - break; - case 0x5f01: - X86_EAX = 0x5f; - X86_ECX = (X86_ECX & 0xffffff00 ) | 2; // panel type = 2 = 1024 * 768 - res = 1; - break; - case 0x5f02: - X86_EAX=0x5f; - X86_EBX= (X86_EBX & 0xffff0000) | 2; - X86_ECX= (X86_ECX & 0xffff0000) | 0x401; // PAL + crt only - X86_EDX= (X86_EDX & 0xffff0000) | 0; // TV Layout - default - res=1; - break; - case 0x5f0f: - X86_EAX=0x860f; - break; - default: - printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", - X86_EAX & 0xffff); - break; - } - return res; -} - -static void vga_init(device_t dev) -{ - u8 reg8; - - mainboard_interrupt_handlers(0x15, &via_cn400_int15_handler); - - /* Set memory rate to 200 MHz. */ - outb(0x3d, CRTM_INDEX); - reg8 = inb(CRTM_DATA); - reg8 &= 0x0f; - reg8 |= (0x1 << 4); - outb(0x3d, CRTM_INDEX); - outb(reg8, CRTM_DATA); - - /* Set framebuffer size. */ - reg8 = (CONFIG_VIDEO_MB / 4); - outb(0x39, SR_INDEX); - outb(reg8, SR_DATA); - - pci_write_config8(dev, 0x04, 0x07); - pci_write_config8(dev, 0x0d, 0x20); - pci_write_config32(dev, 0x10, 0xf0000008); - pci_write_config32(dev, 0x14, 0xf4000000); - - printk(BIOS_DEBUG, "Initializing VGA...\n"); - - pci_dev_init(dev); - - /* It's not clear if these need to be programmed before or after - * the VGA BIOS runs. Try both, clean up later. */ - - /* Set memory rate to 200 MHz (again). */ - outb(0x3d, CRTM_INDEX); - reg8 = inb(CRTM_DATA); - reg8 &= 0x0f; - reg8 |= (0x1 << 4); - outb(0x3d, CRTM_INDEX); - outb(reg8, CRTM_DATA); - - /* Set framebuffer size (again). */ - reg8 = (CONFIG_VIDEO_MB / 4); - outb(0x39, SR_INDEX); - outb(reg8, SR_DATA); - -#ifdef DEBUG_CN400 - int i, j; - - printk(BIOS_SPEW, "%s PCI Header Regs::\n", dev_path(dev)); - - for (i = 0 ; i < 16; i++) - { - printk(BIOS_SPEW, "%02X: ", i*16); - for (j = 0; j < 16; j++) - { - reg8 = pci_read_config8(dev, j+(i*16)); - printk(BIOS_SPEW, "%02X ", reg8); - } - printk(BIOS_SPEW, "\n"); - } -#endif -} - -static const struct device_operations vga_operations = { - .read_resources = pci_dev_read_resources, - .set_resources = pci_dev_set_resources, - .enable_resources = pci_dev_enable_resources, - .init = vga_init, - .ops_pci = 0, -}; - -static const struct pci_driver vga_driver __pci_driver = { - .ops = &vga_operations, - .vendor = PCI_VENDOR_ID_VIA, - .device = PCI_DEVICE_ID_VIA_CN400_VGA, -}; |