diff options
Diffstat (limited to 'src/northbridge/via/cx700/vga.c')
| -rw-r--r-- | src/northbridge/via/cx700/vga.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/src/northbridge/via/cx700/vga.c b/src/northbridge/via/cx700/vga.c deleted file mode 100644 index ee9c34b98a..0000000000 --- a/src/northbridge/via/cx700/vga.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2007-2009 coresystems GmbH - * - * 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 <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 <cpu/x86/mtrr.h> -#include <cpu/x86/msr.h> -#include <arch/interrupt.h> -#include "registers.h" -#include <x86emu/regs.h> -#if IS_ENABLED(CONFIG_PCI_OPTION_ROM_RUN_REALMODE) -#include <device/oprom/realmode/x86.h> -#endif - -/* PCI Domain 1 Device 0 Function 0 */ - -#define SR_INDEX 0x3c4 -#define SR_DATA 0x3c5 -#define CRTM_INDEX 0x3b4 -#define CRTM_DATA 0x3b5 -#define CRTC_INDEX 0x3d4 -#define CRTC_DATA 0x3d5 - -static int via_cx700_int15_handler(void) -{ - int res = 0; - u8 mem_speed; - -#define MEMORY_SPEED_66MHZ (0 << 4) -#define MEMORY_SPEED_100MHZ (1 << 4) -#define MEMORY_SPEED_133MHZ (1 << 4) -#define MEMORY_SPEED_200MHZ (3 << 4) // DDR200 -#define MEMORY_SPEED_266MHZ (4 << 4) // DDR266 -#define MEMORY_SPEED_333MHZ (5 << 4) // DDR333 -#define MEMORY_SPEED_400MHZ (6 << 4) // DDR400 -#define MEMORY_SPEED_533MHZ (7 << 4) // DDR533 -#define MEMORY_SPEED_667MHZ (8 << 4) // DDR667 - - const u8 memory_mapping[6] = { - MEMORY_SPEED_200MHZ, MEMORY_SPEED_266MHZ, - MEMORY_SPEED_333MHZ, MEMORY_SPEED_400MHZ, - MEMORY_SPEED_533MHZ, MEMORY_SPEED_667MHZ - }; - - printk(BIOS_DEBUG, "via_cx700_int15_handler\n"); - - switch(X86_EAX & 0xffff) { - case 0x5f00: /* VGA POST Initialization Signal */ - X86_EAX = (X86_EAX & 0xffff0000 ) | 0x5f; - res = 1; - break; - - case 0x5f01: /* Software Panel Type Configuration */ - X86_EAX = (X86_EAX & 0xffff0000 ) | 0x5f; - // panel type = 2 = 1024 * 768 - X86_ECX = (X86_ECX & 0xffffff00 ) | 2; - res = 1; - break; - - case 0x5f27: /* Boot Device Selection */ - X86_EAX = (X86_EAX & 0xffff0000 ) | 0x5f; - - X86_EBX = 0x00000000; // 0 -> default - X86_ECX = 0x00000000; // 0 -> default - // TV Layout - default - X86_EDX = (X86_EDX & 0xffffff00) | 0; - res = 1; - break; - - case 0x5f0b: /* Get Expansion Setting */ - X86_EAX = (X86_EAX & 0xffff0000 ) | 0x5f; - - X86_ECX = X86_ECX & 0xffffff00; // non-expansion - // regs->ecx = regs->ecx & 0xffffff00 | 1; // expansion - res = 1; - break; - - case 0x5f0f: /* VGA Post Completion */ - X86_EAX = (X86_EAX & 0xffff0000 ) | 0x5f; - res = 1; - break; - - case 0x5f18: - X86_EAX = (X86_EAX & 0xffff0000 ) | 0x5f; -#define UMA_SIZE_8MB (3 << 0) -#define UMA_SIZE_16MB (4 << 0) -#define UMA_SIZE_32MB (5 << 0) - - X86_EBX = (X86_EBX & 0xffff0000 ) | MEMORY_SPEED_533MHZ | UMA_SIZE_32MB; - - mem_speed = pci_read_config8(dev_find_slot(0, PCI_DEVFN(0, 4)), SCRATCH_DRAM_FREQ); - if (mem_speed > 5) - mem_speed = 5; - - X86_EBX |= memory_mapping[mem_speed]; - - res = 1; - break; - - default: - printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", - X86_EAX & 0xffff); - break; - } - return res; -} - -#ifdef UNUSED_CODE -static void write_protect_vgabios(void) -{ - struct device *dev; - - printk(BIOS_DEBUG, "write_protect_vgabios\n"); - - dev = dev_find_device(PCI_VENDOR_ID_VIA, 0x3324, 0); - if (dev) - pci_write_config8(dev, 0x80, 0xff); - - dev = dev_find_device(PCI_VENDOR_ID_VIA, 0x7324, 0); - if (dev) - pci_write_config8(dev, 0x61, 0xff); -} -#endif - -static void vga_enable_console(void) -{ -#if IS_ENABLED(CONFIG_PCI_OPTION_ROM_RUN_REALMODE) - /* Call VGA BIOS int10 function 0x4f14 to enable main console - * Epia-M does not always autosense the main console so forcing - * it on is good. - */ - - /* int#, EAX, EBX, ECX, EDX, ESI, EDI */ - realmode_interrupt(0x10, 0x4f14, 0x8003, 0x0001, 0x0000, 0x0000, 0x0000); -#endif -} - -static void vga_init(struct device *dev) -{ - u8 reg8; - - mainboard_interrupt_handlers(0x15, &via_cx700_int15_handler); - - //* - pci_write_config8(dev, 0x04, 0x07); - pci_write_config8(dev, 0x3e, 0x02); - pci_write_config8(dev, 0x0d, 0x40); - pci_write_config32(dev, 0x10, 0xa0000008); - pci_write_config32(dev, 0x14, 0xdd000000); - pci_write_config8(dev, 0x3c, 0x0b); - //*/ - - printk(BIOS_DEBUG, "Initializing VGA...\n"); - - pci_dev_init(dev); - - if (pci_read_config32(dev, PCI_ROM_ADDRESS) != 0xc0000) return; - - printk(BIOS_DEBUG, "Enable VGA console\n"); - vga_enable_console(); - - /* 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 200MHz */ - outb(0x3d, CRTM_INDEX); - reg8 = inb(CRTM_DATA); - reg8 &= 0x0f; - reg8 |= (0x3 << 4); - outb(0x3d, CRTM_INDEX); - outb(reg8, CRTM_DATA); - - /* Set framebuffer size to 32mb */ - reg8 = (32 / 4); - outb(0x39, SR_INDEX); - outb(reg8, SR_DATA); -} - -static 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 = 0x3157, -}; |