diff options
Diffstat (limited to 'src/northbridge/via/vx800/vga.c')
| -rw-r--r-- | src/northbridge/via/vx800/vga.c | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/src/northbridge/via/vx800/vga.c b/src/northbridge/via/vx800/vga.c deleted file mode 100644 index 447c762a9a..0000000000 --- a/src/northbridge/via/vx800/vga.c +++ /dev/null @@ -1,195 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2009 One Laptop per Child, Association, Inc. - * - * 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. - */ - -/* 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 <cpu/x86/mtrr.h> -#include <cpu/x86/msr.h> -#include <arch/interrupt.h> -#include <x86emu/regs.h> -#include <device/oprom/realmode/x86.h> - -/* 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 - -/* !!FIXME!! These were CONFIG_ options. Fix it in uma_ram_setting.c too. */ -#define VIACONFIG_VGA_PCI_10 0xf8000008 -#define VIACONFIG_VGA_PCI_14 0xfc000000 - -static int via_vx800_int15_handler(void) -{ - int res = 0; - printk(BIOS_DEBUG, "via_vx800_int15_handler\n"); - switch(X86_EAX & 0xffff) { - case 0x5f19: - X86_EAX = 0x5f; - X86_ECX = 0x03; - res = 1; - break; - case 0x5f18: - { - /* - * BL Bit[7:4] - * Memory Data Rate - * 0000: 66MHz - * 0001: 100MHz - * 0010: 133MHz - * 0011: 200MHz ( DDR200 ) - * 0100: 266MHz ( DDR266 ) - * 0101: 333MHz ( DDR333 ) - * 0110: 400MHz ( DDR400 ) - * 0111: 533MHz ( DDR I/II 533 - * 1000: 667MHz ( DDR I/II 667) - * Bit[3:0] - * N: Frame Buffer Size 2^N MB - */ - u8 i; - struct device *dev; - dev = dev_find_slot(0, PCI_DEVFN(0, 3)); - i = pci_read_config8(dev, 0xa1); - i = (i & 0x70); - i = i >> 4; - if (i == 0) { - X86_EAX = 0x00; //not support 5f18 - break; - } - i = i + 2; - X86_EBX = (u32) i; - i = pci_read_config8(dev, 0x90); - i = (i & 0x07); - i = i + 3; - i = i << 4; - X86_EBX = X86_EBX + ((u32) i); - X86_EAX = 0x5f; - res = 1; - break; - } - case 0x5f00: - X86_EAX = 0x005f; - res = 1; - 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 = 0x005f; - res = 1; - break; - default: - printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", - X86_EAX & 0xffff); - X86_EAX = 0; - break; - } - return res; -} - -#ifdef UNUSED_CODE -static void write_protect_vgabios(void) -{ - struct device *dev; - - printk(BIOS_INFO, "write_protect_vgabios\n"); - /* there are two possible devices. Just do both. */ - dev = dev_find_device(PCI_VENDOR_ID_VIA, - PCI_DEVICE_ID_VIA_VX855_MEMCTRL, 0); - if (dev) - pci_write_config8(dev, 0x80, 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 -} - -extern u8 acpi_sleep_type; -static void vga_init(struct device *dev) -{ - uint8_t reg8; - - mainboard_interrupt_handlers(0x15, &via_vx800_int15_handler); - - //A20 OPEN - reg8 = inb(0x92); - reg8 = reg8 | 2; - outb(reg8, 0x92); - - printk(BIOS_DEBUG, "Initializing VGA...\n"); - - pci_dev_init(dev); - - printk(BIOS_DEBUG, "Enable VGA console\n"); - vga_enable_console(); - - if (acpi_sleep_type == 3/* || (PAYLOAD_IS_SEABIOS == 0)*/) { - /* 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); - } -} - -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 = PCI_DEVICE_ID_VIA_VX855_VGA, -}; |