Update from 2013.01 to 2013.07

[karo-tx-uboot.git] / arch / x86 / lib / video_bios.c

diff --git a/arch/x86/lib/video_bios.c b/arch/x86/lib/video_bios.c
deleted file mode 100644 (file)
index 1e06759..0000000
--- a/arch/x86/lib/video_bios.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * (C) Copyright 2002
- * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <pci.h>
-#include <malloc.h>
-#include <asm/ptrace.h>
-#include <asm/realmode.h>
-#include <asm/io.h>
-#include <asm/pci.h>
-#include "bios.h"
-
-#undef PCI_BIOS_DEBUG
-#undef VGA_BIOS_DEBUG
-
-#ifdef VGA_BIOS_DEBUG
-#define        PRINTF(fmt, args...)    printf(fmt, ##args)
-#else
-#define PRINTF(fmt, args...)
-#endif
-
-#define PCI_CLASS_VIDEO                        3
-#define PCI_CLASS_VIDEO_STD            0
-#define PCI_CLASS_VIDEO_PROG_IF_VGA    0
-
-DEFINE_PCI_DEVICE_TABLE(supported) = {
-       {PCI_VIDEO_VENDOR_ID, PCI_VIDEO_DEVICE_ID},
-       {}
-};
-
-static u32 probe_pci_video(void)
-{
-       struct pci_controller *hose;
-       pci_dev_t devbusfn = pci_find_devices(supported, 0);
-
-       if ((devbusfn != -1)) {
-               u32 old;
-               u32 addr;
-
-               /* PCI video device detected */
-               printf("Found PCI VGA device at %02x.%02x.%x\n",
-                      PCI_BUS(devbusfn),
-                      PCI_DEV(devbusfn),
-                      PCI_FUNC(devbusfn));
-
-               /* Enable I/O decoding as well, PCI viudeo boards
-                * support I/O accesses, but they provide no
-                * bar register for this since the ports are fixed.
-                */
-               pci_write_config_word(devbusfn,
-                                     PCI_COMMAND,
-                                     PCI_COMMAND_MEMORY |
-                                     PCI_COMMAND_IO |
-                                     PCI_COMMAND_MASTER);
-
-               /* Test the ROM decoder, do the device support a rom? */
-               pci_read_config_dword(devbusfn, PCI_ROM_ADDRESS, &old);
-               pci_write_config_dword(devbusfn, PCI_ROM_ADDRESS,
-                                      (u32)PCI_ROM_ADDRESS_MASK);
-               pci_read_config_dword(devbusfn, PCI_ROM_ADDRESS, &addr);
-               pci_write_config_dword(devbusfn, PCI_ROM_ADDRESS, old);
-
-               if (!addr) {
-                       printf("PCI VGA have no ROM?\n");
-                       return 0;
-               }
-
-               /* device have a rom */
-               if (pci_shadow_rom(devbusfn, (void *)0xc0000)) {
-                       printf("Shadowing of PCI VGA BIOS failed\n");
-                       return 0;
-               }
-
-               /* Now enable lagacy VGA port access */
-               hose = pci_bus_to_hose(PCI_BUS(devbusfn));
-               if (pci_enable_legacy_video_ports(hose)) {
-                       printf("PCI VGA enable failed\n");
-                       return 0;
-               }
-
-
-               /* return the pci device info, that we'll need later */
-               return PCI_BUS(devbusfn) << 8 |
-                       PCI_DEV(devbusfn) << 3 | (PCI_FUNC(devbusfn) & 7);
-       }
-
-       return 0;
-}
-
-static int probe_isa_video(void)
-{
-       u32 ptr;
-       char *buf;
-
-       ptr = isa_map_rom(0xc0000, 0x8000);
-
-       if (!ptr)
-               return -1;
-
-       buf = malloc(0x8000);
-       if (!buf) {
-               isa_unmap_rom(ptr);
-               return -1;
-       }
-
-       if (readw(ptr) != 0xaa55) {
-               free(buf);
-               isa_unmap_rom(ptr);
-               return -1;
-       }
-
-       /* shadow the rom */
-       memcpy(buf, (void *)ptr, 0x8000);
-       isa_unmap_rom(ptr);
-       memcpy((void *)0xc0000, buf, 0x8000);
-
-       free(buf);
-
-       return 0;
-}
-
-int video_bios_init(void)
-{
-       struct pt_regs regs;
-       int size;
-       int i;
-       u8 sum;
-
-       /* clear the video bios area in case we warmbooted */
-       memset((void *)0xc0000, 0, 0x8000);
-       memset(&regs, 0, sizeof(struct pt_regs));
-
-       if (probe_isa_video())
-               /* No ISA board found, try the PCI bus */
-               regs.eax = probe_pci_video();
-
-       /* Did we succeed in mapping any video bios */
-       if (readw(0xc0000) == 0xaa55) {
-               PRINTF("Found video bios signature\n");
-               size = readb(0xc0002) * 512;
-               PRINTF("size %d\n", size);
-               sum = 0;
-
-               for (i = 0; i < size; i++)
-                       sum += readb(0xc0000 + i);
-
-               PRINTF("Checksum is %sOK\n", sum ? "NOT " : "");
-
-               if (sum)
-                       return 1;
-
-               /*
-                * Some video bioses (ATI Mach64) seem to think that
-                * the original int 10 handler is always at
-                * 0xf000:0xf065 , place an iret instruction there
-                */
-               writeb(0xcf, 0xff065);
-
-               regs.esp = 0x8000;
-               regs.xss = 0x2000;
-               enter_realmode(0xc000, 3, &regs, &regs);
-
-               PRINTF("INT 0x10 vector after:  %04x:%04x\n",
-                      readw(0x42), readw(0x40));
-               PRINTF("BIOS returned %scarry\n",
-                      regs.eflags & 0x00000001 ? "" : "NOT ");
-#ifdef PCI_BIOS_DEBUG
-               print_bios_bios_stat();
-#endif
-               return regs.eflags & 0x00000001;
-
-       }
-
-       return 1;
-
-}