diff options
Diffstat (limited to 'src/northbridge/via/cn700/vga.c')
-rw-r--r-- | src/northbridge/via/cn700/vga.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/src/northbridge/via/cn700/vga.c b/src/northbridge/via/cn700/vga.c deleted file mode 100644 index 493159abe6..0000000000 --- a/src/northbridge/via/cn700/vga.c +++ /dev/null @@ -1,146 +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. - */ - -/* - * 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 "cn700.h" -#include <x86emu/regs.h> - -static int via_cn700_int15_handler(void) -{ - int res = 0; - printk(BIOS_DEBUG, "via_cn700_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(struct device *dev) -{ - u8 reg8; - - mainboard_interrupt_handlers(0x15, &via_cn700_int15_handler); - -#undef OLD_BOCHS_METHOD -#ifdef OLD_BOCHS_METHOD - printk(BIOS_DEBUG, "Copying BOCHS BIOS to 0xf000\n"); - /* - * Copy BOCHS BIOS from 4G-CONFIG_ROM_SIZE-64k (in flash) to 0xf0000 (in RAM) - * This is for compatibility with the VGA ROM's BIOS callbacks. - */ - memcpy((void *)0xf0000, (const void *)(0xffffffff - CONFIG_ROM_SIZE - 0xffff), 0x10000); -#endif - - /* 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, 0xf4000008); - pci_write_config32(dev, 0x14, 0xfb000000); - - 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 OLD_BOCHS_METHOD - /* Clear the BOCHS BIOS out of memory, so it doesn't confuse Linux. */ - memset((void *)0xf0000, 0, 0x10000); -#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_CN700_VGA, -}; |