diff options
author | Wolfgang Denk <wd@denx.de> | 2011-12-02 00:17:49 +0100 |
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committer | Wolfgang Denk <wd@denx.de> | 2011-12-02 00:17:49 +0100 |
commit | 7708d8b352e9e595f6f08afd3206af6495c7dc09 (patch) | |
tree | fb9811040b2b1f55c44fc7274473f2ef0847c19b /arch/x86/lib/bios_setup.c | |
parent | d887ad54ca74063338bc3108beed0aa4f15d1f6b (diff) | |
parent | f008b17f8c2995996b5d100b71f8851d6f74a136 (diff) |
Merge branch 'master' of ssh://gemini/home/wd/git/u-boot/master
* 'master' of ssh://gemini/home/wd/git/u-boot/master:
board/emk/top860/top860.c: Fix GCC 4.6 build warning
board/sbc405/strataflash.c: Fix GCC 4.6 build warning
arch/powerpc/cpu/mpc86xx/cpu.c: Fix GCC 4.6 build warning
board/freescale/mpc8610hpcd/mpc8610hpcd.c: Fix GCC 4.6 build warning
board/mpl/common/flash.c: Fix GCC 4.6 build warning
post/board/lwmon5/gdc.c: Fix GCC 4.6 build warning
drivers/usb/host/sl811-hcd.c: Fix GCC 4.6 build warning
board/sandburst/common/flash.c: Fix GCC 4.6 build warning
DB64460: Fix GCC 4.6 build warnings
DB64360: Fix GCC 4.6 build warnings
board/cray/L1/flash.c: Fix GCC 4.6 build warning
drivers/block/sata_dwc.c: Fix GCC 4.6 build warning
board/amirix/ap1000/flash.c: Fix GCC 4.6 build warning
alpr board: Fix GCC 4.6 build warnings
image: Don't detect XIP images as overlapping.
image: Implement IH_TYPE_KERNEL_NOLOAD
ppc4xx: Add Io64 board support
ppc4xx: fix PMC440 painit command
ppc4xx: remove invalid access to PCI_BRDGOPT2 register
ppc4xx: use CONFIG_PCI_BOOTDELAY instead of private implementation
mpc85xx: support for Freescale COM Express P2020
arch/powerpc/cpu/mpc8xxx/ddr/interactive.c: Fix GCC 4.6 build warning
mpc85xx: support board-specific reset function
powerpc/85xx: verify the localbus device tree address before booting the OS
mpc8xxx: update module_type values from JEDEC DDR3 SPD Specification
powerpc/p3060qds: Add board related support for P3060QDS platform
powerpc/85xx: clean up and document the QE/FMAN microcode macros
powerpc/85xx: always implement the work-around for Erratum SATA_A001
powerpc/85xx: CONFIG_FSL_SATA_V2 should be defined in config_mpc85xx.h
powerpc/85xx: Add workaround for erratum A-003474
powerpc/85xx: fixup flexcan device tree clock-frequency
powerpc/85xx: Add workaround for erratum CPU-A003999
x86: Fix some bugs in the i8402 driver when no controller is present
x86: Make the i8042 driver checkpatch clean
x86: Wrap small helper functions from libgcc to avoid an ABI mismatch
x86: Import the glibc memset implementation
x86: Fix a few recently added bugs
x86: Don't relocate symbols which point to things that aren't relocated
x86: Fix how the location of the realmode and bios blobs are calculated
x86: Misc cleanups
x86: Misc PCI touchups
x86: Ensure IDT and GDT remain 16-byte aligned post relocation
x86: Provide more configuration granularity
x86: Add multiboot header
sc520: Create arch asm-offsets
x86: Punt cold- and warm-boot flags
cosmetic: checkpatch cleanup of board/eNET/*.c
cosmetic: checkpatch cleanup of arch/x86/lib/*.c
cosmetic: checkpatch cleanup of arch/x86/cpu/sc520/*.c
cosmetic: checkpatch cleanup of arch/x86/cpu/*.c
x86: Call hang() on unrecoverable exception
menu.c: use puts() instead of printf() where possible
MAKEALL: drop obsolete mx31pdk_nand target
dataflash: fix parameters order in write_dataflash()
hawkboard: Replace HAWKBOARD_KICK{0, 1}_UNLOCK defines
davinci_sonata: define CONFIG_MACH_TYPE for davinci_sonata board
davinci_schmoogie: define CONFIG_MACH_TYPE for davinci_schmoogie board
arm: a320evb: define mach-type in board config file
OMAP3: Use sdelay from arch/arm/cpu/armv7/syslib.c instead of cloning that.
Fix Stelian's email address
DIU: 1080P and 720P support
CFB: Fix font rendering on mx5 framebuffer
Diffstat (limited to 'arch/x86/lib/bios_setup.c')
-rw-r--r-- | arch/x86/lib/bios_setup.c | 96 |
1 files changed, 17 insertions, 79 deletions
diff --git a/arch/x86/lib/bios_setup.c b/arch/x86/lib/bios_setup.c index 9bf7e5872f..265f7d671e 100644 --- a/arch/x86/lib/bios_setup.c +++ b/arch/x86/lib/bios_setup.c @@ -34,74 +34,22 @@ #include <pci.h> #include <asm/realmode.h> #include <asm/io.h> +#include "bios.h" DECLARE_GLOBAL_DATA_PTR; #define NUMVECTS 256 -#define BIOS_DATA ((char*)0x400) -#define BIOS_DATA_SIZE 256 -#define BIOS_BASE ((char*)0xf0000) -#define BIOS_CS 0xf000 - -extern ulong __bios_start; -extern ulong __bios_size; - -/* these are defined in a 16bit segment and needs - * to be accessed with the RELOC_16_xxxx() macros below - */ -extern u16 ram_in_64kb_chunks; -extern u16 bios_equipment; -extern u8 pci_last_bus; - -extern void *rm_int00; -extern void *rm_int01; -extern void *rm_int02; -extern void *rm_int03; -extern void *rm_int04; -extern void *rm_int05; -extern void *rm_int06; -extern void *rm_int07; -extern void *rm_int08; -extern void *rm_int09; -extern void *rm_int0a; -extern void *rm_int0b; -extern void *rm_int0c; -extern void *rm_int0d; -extern void *rm_int0e; -extern void *rm_int0f; -extern void *rm_int10; -extern void *rm_int11; -extern void *rm_int12; -extern void *rm_int13; -extern void *rm_int14; -extern void *rm_int15; -extern void *rm_int16; -extern void *rm_int17; -extern void *rm_int18; -extern void *rm_int19; -extern void *rm_int1a; -extern void *rm_int1b; -extern void *rm_int1c; -extern void *rm_int1d; -extern void *rm_int1e; -extern void *rm_int1f; -extern void *rm_def_int; - -extern void *realmode_reset; -extern void *realmode_pci_bios_call_entry; - static int set_jmp_vector(int entry_point, void *target) { - if (entry_point & ~0xffff) { + if (entry_point & ~0xffff) return -1; - } - if (((u32)target-0xf0000) & ~0xffff) { + if (((u32)target - 0xf0000) & ~0xffff) return -1; - } + printf("set_jmp_vector: 0xf000:%04x -> %p\n", - entry_point, target); + entry_point, target); /* jmp opcode */ writeb(0xea, 0xf0000 + entry_point); @@ -115,51 +63,42 @@ static int set_jmp_vector(int entry_point, void *target) return 0; } - -/* - ************************************************************ - * Install an interrupt vector - ************************************************************ - */ - +/* Install an interrupt vector */ static void setvector(int vector, u16 segment, void *handler) { - u16 *ptr = (u16*)(vector*4); - ptr[0] = ((u32)handler - (segment << 4))&0xffff; + u16 *ptr = (u16 *)(vector * 4); + ptr[0] = ((u32)handler - (segment << 4)) & 0xffff; ptr[1] = segment; #if 0 printf("setvector: int%02x -> %04x:%04x\n", - vector, ptr[1], ptr[0]); + vector, ptr[1], ptr[0]); #endif } -#define RELOC_16_LONG(seg, off) *(u32*)(seg << 4 | (u32)&off) -#define RELOC_16_WORD(seg, off) *(u16*)(seg << 4 | (u32)&off) -#define RELOC_16_BYTE(seg, off) *(u8*)(seg << 4 | (u32)&off) - int bios_setup(void) { - ulong bios_start = (ulong)&__bios_start + gd->reloc_off; + /* The BIOS section is not relocated and still in the ROM. */ + ulong bios_start = (ulong)&__bios_start; ulong bios_size = (ulong)&__bios_size; - static int done=0; + static int done; int vector; #ifdef CONFIG_PCI struct pci_controller *pri_hose; #endif - if (done) { + if (done) return 0; - } + done = 1; if (bios_size > 65536) { printf("BIOS too large (%ld bytes, max is 65536)\n", - bios_size); + bios_size); return -1; } - memcpy(BIOS_BASE, (void*)bios_start, bios_size); + memcpy(BIOS_BASE, (void *)bios_start, bios_size); /* clear bda */ memset(BIOS_DATA, 0, BIOS_DATA_SIZE); @@ -178,9 +117,8 @@ int bios_setup(void) /* setup realmode interrupt vectors */ - for (vector = 0; vector < NUMVECTS; vector++) { + for (vector = 0; vector < NUMVECTS; vector++) setvector(vector, BIOS_CS, &rm_def_int); - } setvector(0x00, BIOS_CS, &rm_int00); setvector(0x01, BIOS_CS, &rm_int01); |