diff options
author | Peter Tyser <ptyser@xes-inc.com> | 2010-04-13 03:28:04 (GMT) |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2010-04-13 07:13:03 (GMT) |
commit | ea0364f1bbfed1e3ea711147420875cf338fe77a (patch) | |
tree | 15c051bc4d2e94c1661c73e1b87c22c7beda7c24 /lib_i386 | |
parent | 89f39e177e7b0152aa1d3152baa25d986e36cdcf (diff) | |
download | u-boot-fsl-qoriq-ea0364f1bbfed1e3ea711147420875cf338fe77a.tar.xz |
Move lib_$ARCH directories to arch/$ARCH/lib
Also move lib_$ARCH/config.mk to arch/$ARCH/config.mk
This change is intended to clean up the top-level directory structure
and more closely mimic Linux's directory organization.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'lib_i386')
-rw-r--r-- | lib_i386/Makefile | 59 | ||||
-rw-r--r-- | lib_i386/bios.S | 532 | ||||
-rw-r--r-- | lib_i386/bios.h | 94 | ||||
-rw-r--r-- | lib_i386/bios_pci.S | 413 | ||||
-rw-r--r-- | lib_i386/bios_setup.c | 242 | ||||
-rw-r--r-- | lib_i386/board.c | 429 | ||||
-rw-r--r-- | lib_i386/bootm.c | 94 | ||||
-rw-r--r-- | lib_i386/config.mk | 28 | ||||
-rw-r--r-- | lib_i386/interrupts.c | 161 | ||||
-rw-r--r-- | lib_i386/pcat_interrupts.c | 132 | ||||
-rw-r--r-- | lib_i386/pcat_timer.c | 107 | ||||
-rw-r--r-- | lib_i386/pci.c | 152 | ||||
-rw-r--r-- | lib_i386/pci_type1.c | 51 | ||||
-rw-r--r-- | lib_i386/realmode.c | 100 | ||||
-rw-r--r-- | lib_i386/realmode_switch.S | 222 | ||||
-rw-r--r-- | lib_i386/timer.c | 107 | ||||
-rw-r--r-- | lib_i386/video.c | 237 | ||||
-rw-r--r-- | lib_i386/video_bios.c | 222 | ||||
-rw-r--r-- | lib_i386/zimage.c | 225 |
19 files changed, 0 insertions, 3607 deletions
diff --git a/lib_i386/Makefile b/lib_i386/Makefile deleted file mode 100644 index 9838506..0000000 --- a/lib_i386/Makefile +++ /dev/null @@ -1,59 +0,0 @@ -# -# (C) Copyright 2002-2006 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# 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 $(TOPDIR)/config.mk - -LIB = $(obj)lib$(ARCH).a - -SOBJS-y += bios.o -SOBJS-y += bios_pci.o -SOBJS-y += realmode_switch.o - -COBJS-y += bios_setup.o -COBJS-y += board.o -COBJS-y += bootm.o -COBJS-y += interrupts.o -COBJS-$(CONFIG_SYS_PCAT_INTERRUPTS) += pcat_interrupts.o -COBJS-$(CONFIG_SYS_GENERIC_TIMER) += pcat_timer.o -COBJS-$(CONFIG_PCI) += pci.o -COBJS-$(CONFIG_PCI) += pci_type1.o -COBJS-y += realmode.o -COBJS-y += timer.o -COBJS-y += video_bios.o -COBJS-y += video.o -COBJS-y += zimage.o - -SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) - -$(LIB): $(obj).depend $(OBJS) - $(AR) $(ARFLAGS) $@ $(OBJS) - -######################################################################### - -# defines $(obj).depend target -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend - -######################################################################### diff --git a/lib_i386/bios.S b/lib_i386/bios.S deleted file mode 100644 index 48f1b81..0000000 --- a/lib_i386/bios.S +++ /dev/null @@ -1,532 +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 - */ - -/* - * Based on msbios.c from rolo 1.6: - *---------------------------------------------------------------------- - * (C) Copyright 2000 - * Sysgo Real-Time Solutions GmbH - * Klein-Winternheim, Germany - *---------------------------------------------------------------------- - */ - -#include "bios.h" - -/* - * During it's initialization phase, before switching to protected - * mode, the Linux Kernel makes a few BIOS calls. This won't work - * if the board does not have a BIOS. - * - * This is a very minimalisic BIOS that supplies just enough - * functionality to keep the Linux Kernel happy. It is NOT - * a general purpose replacement for a real BIOS !! - */ - - -.section .bios, "ax" -.code16 -.org 0 - /* a call to f000:0 should warmboot */ - jmp realmode_reset - -.globl rm_int00 -.hidden rm_int00 -.type rm_int00, @function -rm_int00: - pushw $0 - jmp any_interrupt16 -.globl rm_int01 -.hidden rm_int01 -.type rm_int01, @function -rm_int01: - pushw $1 - jmp any_interrupt16 -.globl rm_int02 -.hidden rm_int02 -.type rm_int02, @function -rm_int02: - pushw $2 - jmp any_interrupt16 -.globl rm_int03 -.hidden rm_int03 -.type rm_int03, @function -rm_int03: - pushw $3 - jmp any_interrupt16 -.globl rm_int04 -.hidden rm_int04 -.type rm_int04, @function -rm_int04: - pushw $4 - jmp any_interrupt16 -.globl rm_int05 -.hidden rm_int05 -.type rm_int05, @function -rm_int05: - pushw $5 - jmp any_interrupt16 -.globl rm_int06 -.hidden rm_int06 -.type rm_int06, @function -rm_int06: - pushw $6 - jmp any_interrupt16 -.globl rm_int07 -.hidden rm_int07 -.type rm_int07, @function -rm_int07: - pushw $7 - jmp any_interrupt16 -.globl rm_int08 -.hidden rm_int08 -.type rm_int08, @function -rm_int08: - pushw $8 - jmp any_interrupt16 -.globl rm_int09 -.hidden rm_int09 -.type rm_int09, @function -rm_int09: - pushw $9 - jmp any_interrupt16 -.globl rm_int0a -.hidden rm_int0a -.type rm_int0a, @function -rm_int0a: - pushw $10 - jmp any_interrupt16 -.globl rm_int0b -.hidden rm_int0b -.type rm_int0b, @function -rm_int0b: - pushw $11 - jmp any_interrupt16 -.globl rm_int0c -.hidden rm_int0c -.type rm_int0c, @function -rm_int0c: - pushw $12 - jmp any_interrupt16 -.globl rm_int0d -.hidden rm_int0d -.type rm_int0d, @function -rm_int0d: - pushw $13 - jmp any_interrupt16 -.globl rm_int0e -.hidden rm_int0e -.type rm_int0e, @function -rm_int0e: - pushw $14 - jmp any_interrupt16 -.globl rm_int0f -.hidden rm_int0f -.type rm_int0f, @function -rm_int0f: - pushw $15 - jmp any_interrupt16 -.globl rm_int10 -.hidden rm_int10 -.type rm_int10, @function -rm_int10: - pushw $16 - jmp any_interrupt16 -.globl rm_int11 -.hidden rm_int11 -.type rm_int11, @function -rm_int11: - pushw $17 - jmp any_interrupt16 -.globl rm_int12 -.hidden rm_int12 -.type rm_int12, @function -rm_int12: - pushw $18 - jmp any_interrupt16 -.globl rm_int13 -.hidden rm_int13 -.type rm_int13, @function -rm_int13: - pushw $19 - jmp any_interrupt16 -.globl rm_int14 -.hidden rm_int14 -.type rm_int14, @function -rm_int14: - pushw $20 - jmp any_interrupt16 -.globl rm_int15 -.hidden rm_int15 -.type rm_int15, @function -rm_int15: - pushw $21 - jmp any_interrupt16 -.globl rm_int16 -.hidden rm_int16 -.type rm_int16, @function -rm_int16: - pushw $22 - jmp any_interrupt16 -.globl rm_int17 -.hidden rm_int17 -.type rm_int17, @function -rm_int17: - pushw $23 - jmp any_interrupt16 -.globl rm_int18 -.hidden rm_int18 -.type rm_int18, @function -rm_int18: - pushw $24 - jmp any_interrupt16 -.globl rm_int19 -.hidden rm_int19 -.type rm_int19, @function -rm_int19: - pushw $25 - jmp any_interrupt16 -.globl rm_int1a -.hidden rm_int1a -.type rm_int1a, @function -rm_int1a: - pushw $26 - jmp any_interrupt16 -.globl rm_int1b -.hidden rm_int1b -.type rm_int1b, @function -rm_int1b: - pushw $27 - jmp any_interrupt16 -.globl rm_int1c -.hidden rm_int1c -.type rm_int1c, @function -rm_int1c: - pushw $28 - jmp any_interrupt16 -.globl rm_int1d -.hidden rm_int1d -.type rm_int1d, @function -rm_int1d: - pushw $29 - jmp any_interrupt16 -.globl rm_int1e -.hidden rm_int1e -.type rm_int1e, @function -rm_int1e: - pushw $30 - jmp any_interrupt16 -.globl rm_int1f -.hidden rm_int1f -.type rm_int1f, @function -rm_int1f: - pushw $31 - jmp any_interrupt16 -.globl rm_def_int -.hidden rm_def_int -.type rm_def_int, @function -rm_def_int: - iret - - - /* - * All interrupt jumptable entries jump to here - * after pushing the interrupt vector number onto the - * stack. - */ -any_interrupt16: - MAKE_BIOS_STACK - -gs movw OFFS_VECTOR(%bp), %ax - cmpw $0x10, %ax - je Lint_10h - cmpw $0x11, %ax - je Lint_11h - cmpw $0x12, %ax - je Lint_12h - cmpw $0x13, %ax - je Lint_13h - cmpw $0x15, %ax - je Lint_15h - cmpw $0x16, %ax - je Lint_16h - cmpw $0x1a, %ax - je Lint_1ah - movw $0xffff, %ax - jmp Lout -Lint_10h: /* VGA BIOS services */ - call bios_10h - jmp Lout -Lint_11h: - call bios_11h - jmp Lout -Lint_12h: - call bios_12h - jmp Lout -Lint_13h: /* BIOS disk services */ - call bios_13h - jmp Lout -Lint_15h: /* Misc. BIOS services */ - call bios_15h - jmp Lout -Lint_16h: /* keyboard services */ - call bios_16h - jmp Lout -Lint_1ah: /* PCI bios */ - call bios_1ah - jmp Lout -Lout: - cmpw $0, %ax - je Lhandeled - - /* Insert code for unhandeled INTs here. - * - * ROLO prints a message to the console - * (we could do that but then we're in 16bit mode - * so we'll have to get back into 32bit mode - * to use the console I/O routines (if we do this - * we shuls make int 0x10 and int 0x16 work as well)) - */ -Lhandeled: - RESTORE_CALLERS_STACK - addw $2,%sp /* dump vector number */ - iret /* return from interrupt */ - - -/* - ************************************************************ - * BIOS interrupt 10h -- VGA services - ************************************************************ - */ -bios_10h: -gs movw OFFS_AX(%bp), %ax - shrw $8, %ax - cmpw $0x3, %ax - je Lcur_pos - cmpw $0xf, %ax - je Lvid_state - cmpw $0x12, %ax - je Lvid_cfg - movw $0xffff, %ax - ret -Lcur_pos: /* Read Cursor Position and Size */ -gs movw $0, OFFS_CX(%bp) -gs movw $0, OFFS_DX(%bp) - xorw %ax, %ax - ret -Lvid_state: /* Get Video State */ -gs movw $(80 << 8|0x03), OFFS_AX(%bp) /* 80 columns, 80x25, 16 colors */ -gs movw $0, OFFS_BX(%bp) - xorw %ax, %ax - ret -Lvid_cfg: /* Video Subsystem Configuration (EGA/VGA) */ -gs movw $0x10, OFFS_BX(%bp) /* indicate CGA/MDA/HGA */ - xorw %ax, %ax - ret - - -/* - ************************************************************ - * BIOS interrupt 11h -- Equipment determination - ************************************************************ - */ - -bios_11h: -cs movw bios_equipment, %ax -gs movw %ax, OFFS_AX(%bp) - xorw %ax, %ax - ret - - -/* - ************************************************************ - * BIOS interrupt 12h -- Get Memory Size - ************************************************************ - */ -bios_12h: -cs movw ram_in_64kb_chunks, %ax - cmpw $0xa, %ax - ja b12_more_than_640k - shlw $6, %ax - jmp b12_return -b12_more_than_640k: - movw $0x280, %ax -b12_return: -gs movw %ax, OFFS_AX(%bp) /* return number of kilobytes in ax */ - -gs movw OFFS_FLAGS(%bp), %ax - andw $0xfffe, %ax /* clear carry -- function succeeded */ -gs movw %ax, OFFS_FLAGS(%bp) - - xorw %ax, %ax - ret - - -/* - ************************************************************ - * BIOS interrupt 13h -- Disk services - ************************************************************ - */ -bios_13h: -gs movw OFFS_AX(%bp), %ax - shrw $8, %ax - cmpw $0x15, %ax - je Lfunc_15h - movw $0xffff, %ax - ret -Lfunc_15h: -gs movw OFFS_AX(%bp), %ax - andw $0xff, %ax /* return AH=0->drive not present */ -gs movw %ax, OFFS_AX(%bp) - xorw %ax, %ax - ret - - -/* - *********************************************************** - * BIOS interrupt 15h -- Miscellaneous services - *********************************************************** - */ -bios_15h: -gs movw OFFS_AX(%bp), %ax - shrw $8, %ax - cmpw $0xc0, %ax - je Lfunc_c0h - cmpw $0xe8, %ax - je Lfunc_e8h - cmpw $0x88, %ax - je Lfunc_88h - movw $0xffff, %ax - ret - -Lfunc_c0h: /* Return System Configuration Parameters (PS2 only) */ -gs movw OFFS_FLAGS(%bp), %ax - orw $1, %ax /* return carry -- function not supported */ -gs movw %ax, OFFS_FLAGS(%bp) - xorw %ax, %ax - ret - -Lfunc_e8h: -gs movw OFFS_AX(%bp), %ax - andw $0xff, %ax - cmpw $1, %ax - je Lfunc_e801h -gs movw OFFS_FLAGS(%bp), %ax - orw $1, %ax /* return carry -- function not supported */ -gs movw %ax, OFFS_FLAGS(%bp) - xorw %ax, %ax - ret - -Lfunc_e801h: /* Get memory size for >64M Configurations */ -cs movw ram_in_64kb_chunks, %ax - cmpw $0x100, %ax - ja e801_more_than_16mb - shlw $6, %ax /* multiply by 64 */ - subw $0x400, %ax /* 1st meg does not count */ - -gs movw %ax, OFFS_AX(%bp) /* return memory size between 1M and 16M in 1kb chunks in AX and CX */ -gs movw %ax, OFFS_CX(%bp) -gs movw $0, OFFS_BX(%bp) /* set BX and DX to 0*/ -gs movw $0, OFFS_DX(%bp) -gs movw OFFS_FLAGS(%bp), %ax - andw $0xfffe, %ax /* clear carry -- function succeeded */ -gs movw %ax, OFFS_FLAGS(%bp) - xorw %ax, %ax - ret - -e801_more_than_16mb: - subw $0x100, %ax /* subtract 16MB */ - -gs movw $0x3c00, OFFS_AX(%bp) /* return 0x3c00 (16MB-1MB) in AX and CX */ -gs movw $0x3c00, OFFS_CX(%bp) -gs movw %ax, OFFS_BX(%bp) /* set BX and DX to number of 64kb chunks above 16MB */ -gs movw %ax, OFFS_DX(%bp) - -gs movw OFFS_FLAGS(%bp), %ax - andw $0xfffe, %ax /* clear carry -- function succeeded */ -gs movw %ax, OFFS_FLAGS(%bp) - xorw %ax, %ax - ret - -Lfunc_88h: -cs movw ram_in_64kb_chunks, %ax - cmpw $0x100, %ax - jna b88_not_more_than16 - movw $0x100, %ax -b88_not_more_than16: - shlw $6, %ax - subw $0x400, %ax /* 1st meg does not count */ - -gs movw %ax, OFFS_AX(%bp) /* return number of kilobytes between 16MB and 16MB in ax */ - -gs movw OFFS_FLAGS(%bp), %ax - andw $0xfffe, %ax /* clear carry -- function succeeded */ -gs movw %ax, OFFS_FLAGS(%bp) - - xorw %ax, %ax - ret - - -/* - ************************************************************ - * BIOS interrupt 16h -- keyboard services - ************************************************************ - */ -bios_16h: -gs movw OFFS_AX(%bp), %ax - shrw $8, %ax - cmpw $0x03, %ax - je Lfunc_03h - movw $0xffff, %ax - ret -Lfunc_03h: - xorw %ax, %ax /* do nothing -- function not supported */ - ret - -/* - ************************************************************ - * BIOS interrupt 1ah -- PCI bios - ************************************************************ - */ -bios_1ah: -gs movw OFFS_AX(%bp), %ax - cmpb $0xb1, %ah - je Lfunc_b1h - movw $0xffff, %ax - ret -Lfunc_b1h: - call realmode_pci_bios - xorw %ax, %ax /* do nothing -- function not supported */ - ret - - -.globl ram_in_64kb_chunks -.hidden ram_in_64kb_chunks -.type ram_in_64kb_chunks, @function -ram_in_64kb_chunks: - .word 0 - -.globl bios_equipment -.hidden bios_equipment -.type bios_equipment, @function -bios_equipment: - .word 0 diff --git a/lib_i386/bios.h b/lib_i386/bios.h deleted file mode 100644 index 4901f89..0000000 --- a/lib_i386/bios.h +++ /dev/null @@ -1,94 +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 - */ - -#ifndef _BIOS_H_ -#define _BIOS_H_ - -#define OFFS_ES 0 /* 16bit */ -#define OFFS_GS 2 /* 16bit */ -#define OFFS_DS 4 /* 16bit */ -#define OFFS_EDI 6 /* 32bit */ -#define OFFS_DI 6 /* low 16 bits of EDI */ -#define OFFS_ESI 10 /* 32bit */ -#define OFFS_SI 10 /* low 16 bits of ESI */ -#define OFFS_EBP 14 /* 32bit */ -#define OFFS_BP 14 /* low 16 bits of EBP */ -#define OFFS_ESP 18 /* 32bit */ -#define OFFS_SP 18 /* low 16 bits of ESP */ -#define OFFS_EBX 22 /* 32bit */ -#define OFFS_BX 22 /* low 16 bits of EBX */ -#define OFFS_BL 22 /* low 8 bits of BX */ -#define OFFS_BH 23 /* high 8 bits of BX */ -#define OFFS_EDX 26 /* 32bit */ -#define OFFS_DX 26 /* low 16 bits of EBX */ -#define OFFS_DL 26 /* low 8 bits of BX */ -#define OFFS_DH 27 /* high 8 bits of BX */ -#define OFFS_ECX 30 /* 32bit */ -#define OFFS_CX 30 /* low 16 bits of EBX */ -#define OFFS_CL 30 /* low 8 bits of BX */ -#define OFFS_CH 31 /* high 8 bits of BX */ -#define OFFS_EAX 34 /* 32bit */ -#define OFFS_AX 34 /* low 16 bits of EBX */ -#define OFFS_AL 34 /* low 8 bits of BX */ -#define OFFS_AH 35 /* high 8 bits of BX */ -#define OFFS_VECTOR 38 /* 16bit */ -#define OFFS_IP 40 /* 16bit */ -#define OFFS_CS 42 /* 16bit */ -#define OFFS_FLAGS 44 /* 16bit */ - -#define SEGMENT 0x40 -#define STACK 0x800 /* stack at 0x40:0x800 -> 0x800 */ - -/* save general registers */ -/* save some segments */ -/* save callers stack segment .. */ -/* ... in gs */ - /* setup my segments */ - /* setup BIOS stackpointer */ - -#define MAKE_BIOS_STACK \ - pushal ; \ - pushw %ds ; \ - pushw %gs ; \ - pushw %es ; \ - pushw %ss ; \ - popw %gs ; \ - movw $SEGMENT,%ax ; \ - movw %ax,%ds ; \ - movw %ax,%es ; \ - movw %ax,%ss ; \ - movw %sp,%bp ; \ - movw $STACK,%sp - -#define RESTORE_CALLERS_STACK \ - pushw %gs ; /* restore callers stack segment */ \ - popw %ss ; \ - movw %bp,%sp ; /* restore stackpointer */ \ - \ - popw %es ; /* restore segment selectors */ \ - popw %gs ; \ - popw %ds ; \ - \ - popal /* restore GP registers */ - -#endif diff --git a/lib_i386/bios_pci.S b/lib_i386/bios_pci.S deleted file mode 100644 index 9e412e5..0000000 --- a/lib_i386/bios_pci.S +++ /dev/null @@ -1,413 +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 - */ - -/* - * x86 realmode assembly implementation of a PCI BIOS - * for platforms that use one PCI hose and configuration - * access type 1. (The common case for low-end PC's) - */ - -#include "bios.h" - -#define PCI_BIOS_DEBUG - -.section .bios, "ax" -.code16 -.globl realmode_pci_bios_call_entry -.hidden realmode_pci_bios_call_entry -.type realmode_pci_bios_call_entry, @function -realmode_pci_bios_call_entry: - MAKE_BIOS_STACK - call realmode_pci_bios - RESTORE_CALLERS_STACK - ret - - -.globl realmode_pci_bios -realmode_pci_bios: -gs movw OFFS_AX(%bp), %ax - cmpb $1, %al - je pci_bios_present - cmpb $2, %al - je pci_bios_find_device - cmpb $3, %al - je pci_bios_find_class - cmpb $6, %al - je pci_bios_generate_special_cycle - cmpb $8, %al - je pci_bios_read_cfg_byte - cmpb $9, %al - je pci_bios_read_cfg_word - cmpb $10, %al - je pci_bios_read_cfg_dword - cmpb $11, %al - je pci_bios_write_cfg_byte - cmpb $12, %al - je pci_bios_write_cfg_word - cmpb $13, %al - je pci_bios_write_cfg_dword - cmpb $14, %al - je pci_bios_get_irq_routing - cmpb $15, %al - je pci_bios_set_irq - jmp unknown_function - -/*****************************************************************************/ - -pci_bios_present: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_present -#endif - movl $0x20494350, %eax -gs movl %eax, OFFS_EDX(%bp) - movb $0x01, %al -gs movb %al, OFFS_AL(%bp) /* We support cfg type 1 */ - movw $0x0210, %ax /* version 2.10 */ -gs movw %ax, OFFS_BX(%bp) -cs movb pci_last_bus, %al /* last bus number */ -gs movb %al, OFFS_CL(%bp) - jmp clear_carry - -/*****************************************************************************/ - -/* device 0-31, function 0-7 */ -pci_bios_find_device: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_find_device -#endif -gs movw OFFS_CX(%bp), %di - shll $16, %edi -gs movw OFFS_DX(%bp), %di /* edi now holds device in upper 16 - * bits and vendor in lower 16 bits */ -gs movw OFFS_SI(%bp), %si - xorw %bx, %bx /* start at bus 0 dev 0 function 0 */ -pfd_loop: - xorw %ax, %ax /* dword 0 is vendor/device */ - call __pci_bios_select_register - movw $0xcfc, %dx - inl %dx, %eax - cmpl %edi, %eax /* our device ? */ - je pfd_found_one -pfd_next_dev: - /* check for multi function devices */ - movw %bx, %ax - andw $3, %ax - jnz pfd_function_not_zero - movw $0x000c, %ax - call __pci_bios_select_register - movw $0xcfe, %dx - inb %dx, %al - andb $0x80, %al - jz pfd_not_multi_function -pfd_function_not_zero: - incw %bx /* next function, overflows in to - * device number, then bus number */ - jmp pfd_check_bus - -pfd_not_multi_function: - andw $0xfff8, %bx /* remove function bits */ - addw $0x0008, %bx /* next device, overflows in to bus number */ -pfd_check_bus: -cs movb pci_last_bus, %ah - cmpb %ah, %bh - ja pfd_not_found - jmp pfd_loop -pfd_found_one: - decw %si - js pfd_done - jmp pfd_next_dev - -pfd_done: -gs movw %bx, OFFS_BX(%bp) - jmp clear_carry - -pfd_not_found: - movb $0x86, %ah /* device not found */ - jmp set_carry - -/*****************************************************************************/ - -pci_bios_find_class: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_find_class -#endif -gs movl OFFS_ECX(%bp), %edi - andl $0x00ffffff, %edi /* edi now holds class-code in lower 24 bits */ -gs movw OFFS_SI(%bp), %si - xorw %bx, %bx /* start at bus 0 dev 0 function 0 */ -pfc_loop: - movw $8, %ax /* dword 8 is class-code high 24bits */ - call __pci_bios_select_register - movw $0xcfc, %dx - inl %dx, %eax - shrl $8, %eax - andl $0x00ffffff, %eax - cmpl %edi, %eax /* our device ? */ - je pfc_found_one -pfc_next_dev: - /* check for multi function devices */ - andw $3, %bx - jnz pfc_function_not_zero - movw $0x000c, %ax - call __pci_bios_select_register - movw $0xcfe, %dx - inb %dx, %al - andb $0x80, %al - jz pfc_not_multi_function -pfc_function_not_zero: - incw %bx /* next function, overflows in to - * device number, then bus number */ - jmp pfc_check_bus - -pfc_not_multi_function: - andw $0xfff8, %bx /* remove function bits */ - addw $0x0008, %bx /* next device, overflows in to bus number */ -pfc_check_bus: -cs movb pci_last_bus, %ah - cmpb %ah, %bh - ja pfc_not_found - jmp pfc_loop -pfc_found_one: - decw %si - js pfc_done - jmp pfc_next_dev - -pfc_done: -gs movw %bx, OFFS_BX(%bp) - jmp clear_carry - -pfc_not_found: - movb $0x86, %ah /* device not found */ - jmp set_carry - -/*****************************************************************************/ - -pci_bios_generate_special_cycle: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_generate_special_cycle -#endif - movb $0x81, %ah /* function not supported */ - jmp set_carry - -/*****************************************************************************/ - -pci_bios_read_cfg_byte: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_read_cfg_byte -#endif - call pci_bios_select_register -gs movw OFFS_DI(%bp), %dx - andw $3, %dx - addw $0xcfc, %dx - inb %dx, %al -gs movb %al, OFFS_CL(%bp) - jmp clear_carry - -/*****************************************************************************/ - -pci_bios_read_cfg_word: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_read_cfg_word -#endif - call pci_bios_select_register -gs movw OFFS_DI(%bp), %dx - andw $2, %dx - addw $0xcfc, %dx - inw %dx, %ax -gs movw %ax, OFFS_CX(%bp) - jmp clear_carry - - -/*****************************************************************************/ - -pci_bios_read_cfg_dword: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_read_cfg_dword -#endif - call pci_bios_select_register - movw $0xcfc, %dx - inl %dx, %eax -gs movl %eax, OFFS_ECX(%bp) - jmp clear_carry - -/*****************************************************************************/ - -pci_bios_write_cfg_byte: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_write_cfg_byte -#endif - call pci_bios_select_register -gs movw OFFS_DI(%bp), %dx -gs movb OFFS_CL(%bp), %al - andw $3, %dx - addw $0xcfc, %dx - outb %al, %dx - jmp clear_carry - -/*****************************************************************************/ - -pci_bios_write_cfg_word: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_write_cfg_word -#endif - call pci_bios_select_register -gs movw OFFS_DI(%bp), %dx -gs movw OFFS_CX(%bp), %ax - andw $2, %dx - addw $0xcfc, %dx - outw %ax, %dx - jmp clear_carry - -/*****************************************************************************/ - -pci_bios_write_cfg_dword: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_write_cfg_dword -#endif - call pci_bios_select_register -gs movl OFFS_ECX(%bp), %eax - movw $0xcfc, %dx - outl %eax, %dx - jmp clear_carry - -/*****************************************************************************/ - -pci_bios_get_irq_routing: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_get_irq_routing -#endif - movb $0x81, %ah /* function not supported */ - jmp set_carry - -/*****************************************************************************/ - -pci_bios_set_irq: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_set_irq -#endif - movb $0x81, %ah /* function not supported */ - jmp set_carry - -/*****************************************************************************/ - -unknown_function: -#ifdef PCI_BIOS_DEBUG -cs incl num_pci_bios_unknown_function -#endif - movb $0x81, %ah /* function not supported */ - jmp set_carry - -/*****************************************************************************/ - -pci_bios_select_register: -gs movw OFFS_BX(%bp), %bx -gs movw OFFS_DI(%bp), %ax -/* destroys eax, dx */ -__pci_bios_select_register: /* BX holds device id, AX holds register index */ - pushl %ebx - andl $0xfc, %eax - andl $0xffff, %ebx - shll $8, %ebx - orl %ebx, %eax - orl $0x80000000, %eax - movw $0xcf8, %dx - outl %eax, %dx - popl %ebx - ret - - -clear_carry: -gs movw OFFS_FLAGS(%bp), %ax - andw $0xfffe, %ax /* clear carry -- function succeeded */ -gs movw %ax, OFFS_FLAGS(%bp) - xorw %ax, %ax -gs movb %ah, OFFS_AH(%bp) - ret - -set_carry: -gs movb %ah, OFFS_AH(%bp) -gs movw OFFS_FLAGS(%bp), %ax - orw $1, %ax /* return carry -- function not supported */ -gs movw %ax, OFFS_FLAGS(%bp) - movw $-1, %ax - ret - -/*****************************************************************************/ - -.globl pci_last_bus -pci_last_bus: - .byte 0 - -#ifdef PCI_BIOS_DEBUG -.globl num_pci_bios_present -num_pci_bios_present: - .long 0 - -.globl num_pci_bios_find_device -num_pci_bios_find_device: - .long 0 - -.globl num_pci_bios_find_class -num_pci_bios_find_class: - .long 0 - -.globl num_pci_bios_generate_special_cycle -num_pci_bios_generate_special_cycle: - .long 0 - -.globl num_pci_bios_read_cfg_byte -num_pci_bios_read_cfg_byte: - .long 0 - -.globl num_pci_bios_read_cfg_word -num_pci_bios_read_cfg_word: - .long 0 - -.globl num_pci_bios_read_cfg_dword -num_pci_bios_read_cfg_dword: - .long 0 - -.globl num_pci_bios_write_cfg_byte -num_pci_bios_write_cfg_byte: - .long 0 - -.globl num_pci_bios_write_cfg_word -num_pci_bios_write_cfg_word: - .long 0 - -.globl num_pci_bios_write_cfg_dword -num_pci_bios_write_cfg_dword: - .long 0 - -.globl num_pci_bios_get_irq_routing -num_pci_bios_get_irq_routing: - .long 0 - -.globl num_pci_bios_set_irq -num_pci_bios_set_irq: - .long 0 - -.globl num_pci_bios_unknown_function -num_pci_bios_unknown_function: - .long 0 -#endif diff --git a/lib_i386/bios_setup.c b/lib_i386/bios_setup.c deleted file mode 100644 index 6491e52..0000000 --- a/lib_i386/bios_setup.c +++ /dev/null @@ -1,242 +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 - */ - - -/* - * Partly based on msbios.c from rolo 1.6: - *---------------------------------------------------------------------- - * (C) Copyright 2000 - * Sysgo Real-Time Solutions GmbH - * Klein-Winternheim, Germany - *---------------------------------------------------------------------- - */ - -#include <common.h> -#include <pci.h> -#include <asm/realmode.h> -#include <asm/io.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 _i386boot_bios; -extern ulong _i386boot_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) { - return -1; - } - - if (((u32)target-0xf0000) & ~0xffff) { - return -1; - } - printf("set_jmp_vector: 0xf000:%04x -> %p\n", - entry_point, target); - - /* jmp opcode */ - writeb(0xea, 0xf0000 + entry_point); - - /* offset */ - writew(((u32)target-0xf0000), 0xf0000 + entry_point + 1); - - /* segment */ - writew(0xf000, 0xf0000 + entry_point + 3); - - return 0; -} - - -/* - ************************************************************ - * 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; - ptr[1] = segment; - -#if 0 - printf("setvector: int%02x -> %04x:%04x\n", - 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 i386boot_bios = (ulong)&_i386boot_bios; - ulong i386boot_bios_size = (ulong)&_i386boot_bios_size; - - static int done=0; - int vector; -#ifdef CONFIG_PCI - struct pci_controller *pri_hose; -#endif - if (done) { - return 0; - } - done = 1; - - if (i386boot_bios_size > 65536) { - printf("BIOS too large (%ld bytes, max is 65536)\n", - i386boot_bios_size); - return -1; - } - - memcpy(BIOS_BASE, (void*)i386boot_bios, i386boot_bios_size); - - /* clear bda */ - memset(BIOS_DATA, 0, BIOS_DATA_SIZE); - - /* enter some values to the bda */ - writew(0x3f8, BIOS_DATA); /* com1 addr */ - writew(0x2f8, BIOS_DATA+2); /* com2 addr */ - writew(0x3e8, BIOS_DATA+4); /* com3 addr */ - writew(0x2e8, BIOS_DATA+6); /* com4 addr */ - writew(0x278, BIOS_DATA+8); /* lpt1 addr */ - /* - * The kernel wants to read the base memory size - * from 40:13. Put a zero there to avoid an error message - */ - writew(0, BIOS_DATA+0x13); /* base memory size */ - - - /* setup realmode interrupt vectors */ - 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); - setvector(0x02, BIOS_CS, &rm_int02); - setvector(0x03, BIOS_CS, &rm_int03); - setvector(0x04, BIOS_CS, &rm_int04); - setvector(0x05, BIOS_CS, &rm_int05); - setvector(0x06, BIOS_CS, &rm_int06); - setvector(0x07, BIOS_CS, &rm_int07); - setvector(0x08, BIOS_CS, &rm_int08); - setvector(0x09, BIOS_CS, &rm_int09); - setvector(0x0a, BIOS_CS, &rm_int0a); - setvector(0x0b, BIOS_CS, &rm_int0b); - setvector(0x0c, BIOS_CS, &rm_int0c); - setvector(0x0d, BIOS_CS, &rm_int0d); - setvector(0x0e, BIOS_CS, &rm_int0e); - setvector(0x0f, BIOS_CS, &rm_int0f); - setvector(0x10, BIOS_CS, &rm_int10); - setvector(0x11, BIOS_CS, &rm_int11); - setvector(0x12, BIOS_CS, &rm_int12); - setvector(0x13, BIOS_CS, &rm_int13); - setvector(0x14, BIOS_CS, &rm_int14); - setvector(0x15, BIOS_CS, &rm_int15); - setvector(0x16, BIOS_CS, &rm_int16); - setvector(0x17, BIOS_CS, &rm_int17); - setvector(0x18, BIOS_CS, &rm_int18); - setvector(0x19, BIOS_CS, &rm_int19); - setvector(0x1a, BIOS_CS, &rm_int1a); - setvector(0x1b, BIOS_CS, &rm_int1b); - setvector(0x1c, BIOS_CS, &rm_int1c); - setvector(0x1d, BIOS_CS, &rm_int1d); - setvector(0x1e, BIOS_CS, &rm_int1e); - setvector(0x1f, BIOS_CS, &rm_int1f); - - set_jmp_vector(0xfff0, &realmode_reset); - set_jmp_vector(0xfe6e, &realmode_pci_bios_call_entry); - - /* fill in data area */ - RELOC_16_WORD(0xf000, ram_in_64kb_chunks) = gd->ram_size >> 16; - RELOC_16_WORD(0xf000, bios_equipment) = 0; /* FixMe */ - - /* If we assume only one PCI hose, this PCI hose - * will own PCI bus #0, and the last PCI bus of - * that PCI hose will be the last PCI bus in the - * system. - * (This, ofcause break on multi hose systems, - * but our PCI BIOS only support one hose anyway) - */ -#ifdef CONFIG_PCI - pri_hose = pci_bus_to_hose(0); - if (NULL != pri_hose) { - /* fill in last pci bus number for use by the realmode - * PCI BIOS */ - RELOC_16_BYTE(0xf000, pci_last_bus) = pri_hose->last_busno; - } -#endif - return 0; -} diff --git a/lib_i386/board.c b/lib_i386/board.c deleted file mode 100644 index f3b6348..0000000 --- a/lib_i386/board.c +++ /dev/null @@ -1,429 +0,0 @@ -/* - * (C) Copyright 2002 - * Daniel Engstr�m, Omicron Ceti AB, daniel@omicron.se - * - * (C) Copyright 2002 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * 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 <watchdog.h> -#include <command.h> -#include <stdio_dev.h> -#include <timestamp.h> -#include <version.h> -#include <malloc.h> -#include <net.h> -#include <ide.h> -#include <asm/u-boot-i386.h> -#include <elf.h> - -#ifdef CONFIG_BITBANGMII -#include <miiphy.h> -#endif - -DECLARE_GLOBAL_DATA_PTR; - -/* Exports from the Linker Script */ -extern ulong _i386boot_text_start; -extern ulong _i386boot_rel_dyn_start; -extern ulong _i386boot_rel_dyn_end; -extern ulong _i386boot_bss_start; -extern ulong _i386boot_bss_size; -void ram_bootstrap (void *); -const char version_string[] = - U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")"; - -/************************************************************************ - * Init Utilities * - ************************************************************************ - * Some of this code should be moved into the core functions, - * or dropped completely, - * but let's get it working (again) first... - */ -static int init_baudrate (void) -{ - char tmp[64]; /* long enough for environment variables */ - int i = getenv_r("baudrate", tmp, 64); - - gd->baudrate = (i != 0) - ? (int) simple_strtoul (tmp, NULL, 10) - : CONFIG_BAUDRATE; - - return (0); -} - -static int display_banner (void) -{ - - printf ("\n\n%s\n\n", version_string); -/* - printf ("U-Boot code: %08lX -> %08lX data: %08lX -> %08lX\n" - " BSS: %08lX -> %08lX stack: %08lX -> %08lX\n", - i386boot_start, i386boot_romdata_start-1, - i386boot_romdata_dest, i386boot_romdata_dest+i386boot_romdata_size-1, - i386boot_bss_start, i386boot_bss_start+i386boot_bss_size-1, - i386boot_bss_start+i386boot_bss_size, - i386boot_bss_start+i386boot_bss_size+CONFIG_SYS_STACK_SIZE-1); - -*/ - - return (0); -} - -/* - * WARNING: this code looks "cleaner" than the PowerPC version, but - * has the disadvantage that you either get nothing, or everything. - * On PowerPC, you might see "DRAM: " before the system hangs - which - * gives a simple yet clear indication which part of the - * initialization if failing. - */ -static int display_dram_config (void) -{ - int i; - - puts ("DRAM Configuration:\n"); - - for (i=0; i<CONFIG_NR_DRAM_BANKS; i++) { - printf ("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); - print_size (gd->bd->bi_dram[i].size, "\n"); - } - - return (0); -} - -static void display_flash_config (ulong size) -{ - puts ("Flash: "); - print_size (size, "\n"); -} - -/* - * Breath some life into the board... - * - * Initialize an SMC for serial comms, and carry out some hardware - * tests. - * - * The first part of initialization is running from Flash memory; - * its main purpose is to initialize the RAM so that we - * can relocate the monitor code to RAM. - */ - - -/* - * All attempts to come up with a "common" initialization sequence - * that works for all boards and architectures failed: some of the - * requirements are just _too_ different. To get rid of the resulting - * mess of board dependend #ifdef'ed code we now make the whole - * initialization sequence configurable to the user. - * - * The requirements for any new initalization function is simple: it - * receives a pointer to the "global data" structure as it's only - * argument, and returns an integer return code, where 0 means - * "continue" and != 0 means "fatal error, hang the system". - */ -typedef int (init_fnc_t) (void); - -init_fnc_t *init_sequence[] = { - serial_init, - cpu_init_r, /* basic cpu dependent setup */ - board_early_init_r, /* basic board dependent setup */ - dram_init, /* configure available RAM banks */ - interrupt_init, /* set up exceptions */ - timer_init, - env_init, /* initialize environment */ - init_baudrate, /* initialze baudrate settings */ - serial_init, /* serial communications setup */ - display_banner, - display_dram_config, - - NULL, -}; - -gd_t *gd; - -/* - * Load U-Boot into RAM, initialize BSS, perform relocation adjustments - */ -void board_init_f (ulong stack_limit) -{ - void *text_start = &_i386boot_text_start; - void *u_boot_cmd_end = &__u_boot_cmd_end; - Elf32_Rel *rel_dyn_start = (Elf32_Rel *)&_i386boot_rel_dyn_start; - Elf32_Rel *rel_dyn_end = (Elf32_Rel *)&_i386boot_rel_dyn_end; - void *bss_start = &_i386boot_bss_start; - void *bss_size = &_i386boot_bss_size; - - size_t uboot_size; - void *ram_start; - ulong rel_offset; - Elf32_Rel *re; - - void (*start_func)(void *); - - /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("": : :"memory"); - - uboot_size = (size_t)u_boot_cmd_end - (size_t)text_start; - ram_start = (void *)stack_limit - (uboot_size + (ulong)bss_size); - rel_offset = text_start - ram_start; - start_func = ram_bootstrap - rel_offset; - - /* First stage CPU initialization */ - if (cpu_init_f() != 0) - hang(); - - /* First stage Board initialization */ - if (board_early_init_f() != 0) - hang(); - - /* Copy U-Boot into RAM */ - memcpy(ram_start, text_start, (size_t)uboot_size); - - /* Clear BSS */ - memset(bss_start - rel_offset, 0, (size_t)bss_size); - - /* Perform relocation adjustments */ - for (re = rel_dyn_start; re < rel_dyn_end; re++) - { - if (re->r_offset >= TEXT_BASE) - if (*(ulong *)re->r_offset >= TEXT_BASE) - *(ulong *)(re->r_offset - rel_offset) -= (Elf32_Addr)rel_offset; - } - - start_func(ram_start); - - /* NOTREACHED - relocate_code() does not return */ - while(1); -} - -/* - * All attempts to jump straight from board_init_f() to board_init_r() - * have failed, hence this special 'bootstrap' function. - */ -void ram_bootstrap (void *ram_start) -{ - static gd_t gd_data; - - /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("": : :"memory"); - - board_init_r(&gd_data, (ulong)ram_start); -} - -void board_init_r(gd_t *id, ulong ram_start) -{ - char *s; - int i; - ulong size; - static bd_t bd_data; - init_fnc_t **init_fnc_ptr; - - show_boot_progress(0x21); - - gd = id; - /* compiler optimization barrier needed for GCC >= 3.4 */ - __asm__ __volatile__("": : :"memory"); - - memset (gd, 0, sizeof (gd_t)); - gd->bd = &bd_data; - memset (gd->bd, 0, sizeof (bd_t)); - show_boot_progress(0x22); - - gd->baudrate = CONFIG_BAUDRATE; - - gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ - - mem_malloc_init((((ulong)ram_start - CONFIG_SYS_MALLOC_LEN)+3)&~3, - CONFIG_SYS_MALLOC_LEN); - - for (init_fnc_ptr = init_sequence, i=0; *init_fnc_ptr; ++init_fnc_ptr, i++) { - show_boot_progress(0xa130|i); - - if ((*init_fnc_ptr)() != 0) { - hang (); - } - } - show_boot_progress(0x23); - - /* configure available FLASH banks */ - size = flash_init(); - display_flash_config(size); - show_boot_progress(0x24); - - show_boot_progress(0x25); - - /* initialize environment */ - env_relocate (); - show_boot_progress(0x26); - - - /* IP Address */ - bd_data.bi_ip_addr = getenv_IPaddr ("ipaddr"); - -#if defined(CONFIG_PCI) - /* - * Do pci configuration - */ - pci_init(); -#endif - - show_boot_progress(0x27); - - - stdio_init (); - - jumptable_init (); - - /* Initialize the console (after the relocation and devices init) */ - console_init_r(); - -#ifdef CONFIG_MISC_INIT_R - /* miscellaneous platform dependent initialisations */ - misc_init_r(); -#endif - -#if defined(CONFIG_CMD_PCMCIA) && !defined(CONFIG_CMD_IDE) - WATCHDOG_RESET(); - puts ("PCMCIA:"); - pcmcia_init(); -#endif - -#if defined(CONFIG_CMD_KGDB) - WATCHDOG_RESET(); - puts("KGDB: "); - kgdb_init(); -#endif - - /* enable exceptions */ - enable_interrupts(); - show_boot_progress(0x28); - - /* Must happen after interrupts are initialized since - * an irq handler gets installed - */ -#ifdef CONFIG_SERIAL_SOFTWARE_FIFO - serial_buffered_init(); -#endif - -#ifdef CONFIG_STATUS_LED - status_led_set (STATUS_LED_BOOT, STATUS_LED_BLINKING); -#endif - - udelay(20); - - set_timer (0); - - /* Initialize from environment */ - if ((s = getenv ("loadaddr")) != NULL) { - load_addr = simple_strtoul (s, NULL, 16); - } -#if defined(CONFIG_CMD_NET) - if ((s = getenv ("bootfile")) != NULL) { - copy_filename (BootFile, s, sizeof (BootFile)); - } -#endif - - WATCHDOG_RESET(); - -#if defined(CONFIG_CMD_IDE) - WATCHDOG_RESET(); - puts("IDE: "); - ide_init(); -#endif - -#if defined(CONFIG_CMD_SCSI) - WATCHDOG_RESET(); - puts("SCSI: "); - scsi_init(); -#endif - -#if defined(CONFIG_CMD_DOC) - WATCHDOG_RESET(); - puts("DOC: "); - doc_init(); -#endif - -#ifdef CONFIG_BITBANGMII - bb_miiphy_init(); -#endif -#if defined(CONFIG_CMD_NET) -#if defined(CONFIG_NET_MULTI) - WATCHDOG_RESET(); - puts("Net: "); -#endif - eth_initialize(gd->bd); -#endif - -#if ( defined(CONFIG_CMD_NET)) && (0) - WATCHDOG_RESET(); -# ifdef DEBUG - puts ("Reset Ethernet PHY\n"); -# endif - reset_phy(); -#endif - -#ifdef CONFIG_LAST_STAGE_INIT - WATCHDOG_RESET(); - /* - * Some parts can be only initialized if all others (like - * Interrupts) are up and running (i.e. the PC-style ISA - * keyboard). - */ - last_stage_init(); -#endif - - -#ifdef CONFIG_POST - post_run (NULL, POST_RAM | post_bootmode_get(0)); -#endif - - - show_boot_progress(0x29); - - /* main_loop() can return to retry autoboot, if so just run it again. */ - for (;;) { - main_loop(); - } - - /* NOTREACHED - no way out of command loop except booting */ -} - -void hang (void) -{ - puts ("### ERROR ### Please RESET the board ###\n"); - for (;;); -} - -unsigned long do_go_exec (ulong (*entry)(int, char *[]), int argc, char *argv[]) -{ - /* - * TODO: Test this function - changed to fix compiler error. - * Original code was: - * return (entry >> 1) (argc, argv); - * with a comment about Nios function pointers are address >> 1 - */ - return (entry) (argc, argv); -} diff --git a/lib_i386/bootm.c b/lib_i386/bootm.c deleted file mode 100644 index f96d7bd..0000000 --- a/lib_i386/bootm.c +++ /dev/null @@ -1,94 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) - * - * 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 <command.h> -#include <image.h> -#include <u-boot/zlib.h> -#include <asm/byteorder.h> -#include <asm/zimage.h> - -/*cmd_boot.c*/ -int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) -{ - void *base_ptr; - ulong os_data, os_len; - image_header_t *hdr; - -#if defined(CONFIG_FIT) - const void *data; - size_t len; -#endif - - if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) - return 1; - - if (images->legacy_hdr_valid) { - hdr = images->legacy_hdr_os; - if (image_check_type (hdr, IH_TYPE_MULTI)) { - /* if multi-part image, we need to get first subimage */ - image_multi_getimg (hdr, 0, &os_data, &os_len); - } else { - /* otherwise get image data */ - os_data = image_get_data (hdr); - os_len = image_get_data_size (hdr); - } -#if defined(CONFIG_FIT) - } else if (images->fit_uname_os) { - ret = fit_image_get_data (images->fit_hdr_os, - images->fit_noffset_os, &data, &len); - if (ret) { - puts ("Can't get image data/size!\n"); - goto error; - } - os_data = (ulong)data; - os_len = (ulong)len; -#endif - } else { - puts ("Could not find kernel image!\n"); - goto error; - } - - base_ptr = load_zimage ((void*)os_data, os_len, - images->rd_start, images->rd_end - images->rd_start, 0); - - if (NULL == base_ptr) { - printf ("## Kernel loading failed ...\n"); - goto error; - - } - -#ifdef DEBUG - printf ("## Transferring control to Linux (at address %08x) ...\n", - (u32)base_ptr); -#endif - - /* we assume that the kernel is in place */ - printf("\nStarting kernel ...\n\n"); - - boot_zimage(base_ptr); - /* does not return */ - -error: - return 1; -} diff --git a/lib_i386/config.mk b/lib_i386/config.mk deleted file mode 100644 index 4b990e0..0000000 --- a/lib_i386/config.mk +++ /dev/null @@ -1,28 +0,0 @@ -# -# (C) Copyright 2000-2002 -# Wolfgang Denk, DENX Software Engineering, wd@denx.de. -# -# 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 -# - -CROSS_COMPILE ?= i386-linux- - -STANDALONE_LOAD_ADDR = 0x40000 - -PLATFORM_CPPFLAGS += -DCONFIG_I386 -D__I386__ diff --git a/lib_i386/interrupts.c b/lib_i386/interrupts.c deleted file mode 100644 index 51def59..0000000 --- a/lib_i386/interrupts.c +++ /dev/null @@ -1,161 +0,0 @@ -/* - * (C) Copyright 2009 - * Graeme Russ, graeme.russ@gmail.com - * - * (C) Copyright 2007 - * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com - * - * (C) Copyright 2006 - * Detlev Zundel, DENX Software Engineering, dzu@denx.de - * - * (C) Copyright -2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2002 - * Daniel Engström, Omicron Ceti AB, daniel@omicron.se - * - * (C) Copyright 2001 - * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. - * - * 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 - */ - -/* - * This file contains the high-level API for the interrupt sub-system - * of the i386 port of U-Boot. Most of the functionality has been - * shamelessly stolen from the leon2 / leon3 ports of U-Boot. - * Daniel Hellstrom, Detlev Zundel, Wolfgang Denk and Josh Huber are - * credited for the corresponding work on those ports. The original - * interrupt handling routines for the i386 port were written by - * Daniel Engström - */ - -#include <common.h> -#include <asm/interrupt.h> - -struct irq_action { - interrupt_handler_t *handler; - void *arg; - unsigned int count; -}; - -static struct irq_action irq_handlers[CONFIG_SYS_NUM_IRQS] = { {0} }; -static int spurious_irq_cnt = 0; -static int spurious_irq = 0; - -void irq_install_handler(int irq, interrupt_handler_t *handler, void *arg) -{ - int status; - - if (irq < 0 || irq >= CONFIG_SYS_NUM_IRQS) { - printf("irq_install_handler: bad irq number %d\n", irq); - return; - } - - if (irq_handlers[irq].handler != NULL) - printf("irq_install_handler: 0x%08lx replacing 0x%08lx\n", - (ulong) handler, - (ulong) irq_handlers[irq].handler); - - status = disable_interrupts (); - - irq_handlers[irq].handler = handler; - irq_handlers[irq].arg = arg; - irq_handlers[irq].count = 0; - - unmask_irq(irq); - - if (status) - enable_interrupts(); - - return; -} - -void irq_free_handler(int irq) -{ - int status; - - if (irq < 0 || irq >= CONFIG_SYS_NUM_IRQS) { - printf("irq_free_handler: bad irq number %d\n", irq); - return; - } - - status = disable_interrupts (); - - mask_irq(irq); - - irq_handlers[irq].handler = NULL; - irq_handlers[irq].arg = NULL; - - if (status) - enable_interrupts(); - - return; -} - -void do_irq(int hw_irq) -{ - int irq = hw_irq - 0x20; - - if (irq < 0 || irq >= CONFIG_SYS_NUM_IRQS) { - printf("do_irq: bad irq number %d\n", irq); - return; - } - - if (irq_handlers[irq].handler) { - mask_irq(irq); - - irq_handlers[irq].handler(irq_handlers[irq].arg); - irq_handlers[irq].count++; - - unmask_irq(irq); - specific_eoi(irq); - - } else { - if ((irq & 7) != 7) { - spurious_irq_cnt++; - spurious_irq = irq; - } - } -} - -#if defined(CONFIG_CMD_IRQ) -int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) -{ - int irq; - - printf("Spurious IRQ: %u, last unknown IRQ: %d\n", - spurious_irq_cnt, spurious_irq); - - printf ("Interrupt-Information:\n"); - printf ("Nr Routine Arg Count\n"); - - for (irq = 0; irq <= CONFIG_SYS_NUM_IRQS; irq++) { - if (irq_handlers[irq].handler != NULL) { - printf ("%02d %08lx %08lx %d\n", - irq, - (ulong)irq_handlers[irq].handler, - (ulong)irq_handlers[irq].arg, - irq_handlers[irq].count); - } - } - - return 0; -} -#endif diff --git a/lib_i386/pcat_interrupts.c b/lib_i386/pcat_interrupts.c deleted file mode 100644 index 67e6e97..0000000 --- a/lib_i386/pcat_interrupts.c +++ /dev/null @@ -1,132 +0,0 @@ -/* - * (C) Copyright 2009 - * Graeme Russ, graeme.russ@gmail.com - * - * (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 - */ - -/* - * This file provides the interrupt handling functionality for systems - * based on the standard PC/AT architecture using two cascaded i8259 - * Programmable Interrupt Controllers. - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/i8259.h> -#include <asm/ibmpc.h> -#include <asm/interrupt.h> - -#if CONFIG_SYS_NUM_IRQS != 16 -#error "CONFIG_SYS_NUM_IRQS must equal 16 if CONFIG_SYS_NUM_IRQS is defined" -#endif - -int interrupt_init(void) -{ - u8 i; - - disable_interrupts(); - - /* Mask all interrupts */ - outb(0xff, MASTER_PIC + IMR); - outb(0xff, SLAVE_PIC + IMR); - - /* Master PIC */ - /* Place master PIC interrupts at INT20 */ - /* ICW3, One slave PIC is present */ - outb(ICW1_SEL|ICW1_EICW4, MASTER_PIC + ICW1); - outb(0x20, MASTER_PIC + ICW2); - outb(IR2, MASTER_PIC + ICW3); - outb(ICW4_PM, MASTER_PIC + ICW4); - - for (i = 0; i < 8; i++) - outb(OCW2_SEOI | i, MASTER_PIC + OCW2); - - /* Slave PIC */ - /* Place slave PIC interrupts at INT28 */ - /* Slave ID */ - outb(ICW1_SEL|ICW1_EICW4, SLAVE_PIC + ICW1); - outb(0x28, SLAVE_PIC + ICW2); - outb(0x02, SLAVE_PIC + ICW3); - outb(ICW4_PM, SLAVE_PIC + ICW4); - - for (i = 0; i < 8; i++) - outb(OCW2_SEOI | i, SLAVE_PIC + OCW2); - - /* - * Enable cascaded interrupts by unmasking the cascade IRQ pin of - * the master PIC - */ - unmask_irq (2); - - enable_interrupts(); - - return 0; -} - -void mask_irq(int irq) -{ - int imr_port; - - if (irq >= CONFIG_SYS_NUM_IRQS) - return; - - if (irq > 7) - imr_port = SLAVE_PIC + IMR; - else - imr_port = MASTER_PIC + IMR; - - outb(inb(imr_port) | (1 << (irq & 7)), imr_port); -} - -void unmask_irq(int irq) -{ - int imr_port; - - if (irq >= CONFIG_SYS_NUM_IRQS) - return; - - if (irq > 7) - imr_port = SLAVE_PIC + IMR; - else - imr_port = MASTER_PIC + IMR; - - outb(inb(imr_port) & ~(1 << (irq & 7)), imr_port); -} - -void specific_eoi(int irq) -{ - if (irq >= CONFIG_SYS_NUM_IRQS) - return; - - if (irq > 7) { - /* - * IRQ is on the slave - Issue a corresponding EOI to the - * slave PIC and an EOI for IRQ2 (the cascade interrupt) - * on the master PIC - */ - outb(OCW2_SEOI | (irq & 7), SLAVE_PIC + OCW2); - irq = SEOI_IR2; - } - - outb(OCW2_SEOI | irq, MASTER_PIC + OCW2); -} diff --git a/lib_i386/pcat_timer.c b/lib_i386/pcat_timer.c deleted file mode 100644 index 1373fd1..0000000 --- a/lib_i386/pcat_timer.c +++ /dev/null @@ -1,107 +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 <asm/io.h> -#include <asm/i8254.h> -#include <asm/ibmpc.h> -#include <asm/interrupt.h> - -#define TIMER0_VALUE 0x04aa /* 1kHz 1.9318MHz / 1000 */ -#define TIMER2_VALUE 0x0a8e /* 440Hz */ - -static int timer_init_done = 0; - -int timer_init(void) -{ - /* initialize timer 0 and 2 - * - * Timer 0 is used to increment system_tick 1000 times/sec - * Timer 1 was used for DRAM refresh in early PC's - * Timer 2 is used to drive the speaker - * (to stasrt a beep: write 3 to port 0x61, - * to stop it again: write 0) - */ - outb (PIT_CMD_CTR0 | PIT_CMD_BOTH | PIT_CMD_MODE2, - PIT_BASE + PIT_COMMAND); - outb (TIMER0_VALUE & 0xff, PIT_BASE + PIT_T0); - outb (TIMER0_VALUE >> 8, PIT_BASE + PIT_T0); - - outb (PIT_CMD_CTR2 | PIT_CMD_BOTH | PIT_CMD_MODE3, - PIT_BASE + PIT_COMMAND); - outb (TIMER2_VALUE & 0xff, PIT_BASE + PIT_T2); - outb (TIMER2_VALUE >> 8, PIT_BASE + PIT_T2); - - irq_install_handler (0, timer_isr, NULL); - unmask_irq (0); - - timer_init_done = 1; - - return 0; -} - -static u16 read_pit(void) -{ - u8 low; - - outb (PIT_CMD_LATCH, PIT_BASE + PIT_COMMAND); - low = inb (PIT_BASE + PIT_T0); - - return ((inb (PIT_BASE + PIT_T0) << 8) | low); -} - -/* this is not very exact */ -void __udelay (unsigned long usec) -{ - int counter; - int wraps; - - if (timer_init_done) - { - counter = read_pit (); - wraps = usec / 1000; - usec = usec % 1000; - - usec *= 1194; - usec /= 1000; - usec += counter; - - while (usec > 1194) { - usec -= 1194; - wraps++; - } - - while (1) { - int new_count = read_pit (); - - if (((new_count < usec) && !wraps) || wraps < 0) - break; - - if (new_count > counter) - wraps--; - - counter = new_count; - } - } - -} diff --git a/lib_i386/pci.c b/lib_i386/pci.c deleted file mode 100644 index 9020e7c..0000000 --- a/lib_i386/pci.c +++ /dev/null @@ -1,152 +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 <asm/io.h> -#include <asm/pci.h> - -#undef PCI_ROM_SCAN_VERBOSE - -int pci_shadow_rom(pci_dev_t dev, unsigned char *dest) -{ - struct pci_controller *hose; - int res = -1; - int i; - - u32 rom_addr; - u32 addr_reg; - u32 size; - - u16 vendor; - u16 device; - u32 class_code; - - hose = pci_bus_to_hose(PCI_BUS(dev)); -#if 0 - printf("pci_shadow_rom() asked to shadow device %x to %x\n", - dev, (u32)dest); -#endif - pci_read_config_word(dev, PCI_VENDOR_ID, &vendor); - pci_read_config_word(dev, PCI_DEVICE_ID, &device); - pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_code); - - class_code &= 0xffffff00; - class_code >>= 8; - -#if 0 - printf("PCI Header Vendor %04x device %04x class %06x\n", - vendor, device, class_code); -#endif - /* Enable the rom addess decoder */ - pci_write_config_dword(dev, PCI_ROM_ADDRESS, (u32)PCI_ROM_ADDRESS_MASK); - pci_read_config_dword(dev, PCI_ROM_ADDRESS, &addr_reg); - - if (!addr_reg) { - /* register unimplemented */ - printf("pci_chadow_rom: device do not seem to have a rom\n"); - return -1; - } - - size = (~(addr_reg&PCI_ROM_ADDRESS_MASK))+1; - -#if 0 - printf("ROM is %d bytes\n", size); -#endif - rom_addr = pci_get_rom_window(hose, size); -#if 0 - printf("ROM mapped at %x \n", rom_addr); -#endif - pci_write_config_dword(dev, PCI_ROM_ADDRESS, - pci_phys_to_mem(dev, rom_addr) - |PCI_ROM_ADDRESS_ENABLE); - - - for (i=rom_addr;i<rom_addr+size; i+=512) { - - - if (readw(i) == 0xaa55) { - u32 pci_data; -#ifdef PCI_ROM_SCAN_VERBOSE - printf("ROM signature found\n"); -#endif - pci_data = readw(0x18+i); - pci_data += i; - - if (0==memcmp((void*)pci_data, "PCIR", 4)) { -#ifdef PCI_ROM_SCAN_VERBOSE - printf("Fount PCI rom image at offset %d\n", i-rom_addr); - printf("Vendor %04x device %04x class %06x\n", - readw(pci_data+4), readw(pci_data+6), - readl(pci_data+0x0d)&0xffffff); - printf("%s\n", - (readw(pci_data+0x15) &0x80)? - "Last image":"More images follow"); - switch (readb(pci_data+0x14)) { - case 0: - printf("X86 code\n"); - break; - case 1: - printf("Openfirmware code\n"); - break; - case 2: - printf("PARISC code\n"); - break; - } - printf("Image size %d\n", readw(pci_data+0x10) * 512); -#endif - /* FixMe: I think we should compare the class code - * bytes as well but I have no reference on the - * exact order of these bytes in the PCI ROM header */ - if (readw(pci_data+4) == vendor && - readw(pci_data+6) == device && - /* (readl(pci_data+0x0d)&0xffffff) == class_code && */ - readb(pci_data+0x14) == 0 /* x86 code image */ ) { -#ifdef PCI_ROM_SCAN_VERBOSE - printf("Suitable ROM image found, copying\n"); -#endif - memmove(dest, (void*)rom_addr, readw(pci_data+0x10) * 512); - res = 0; - break; - - } - if (readw(pci_data+0x15) &0x80) { - break; - } - } - } - - } - -#ifdef PCI_ROM_SCAN_VERBOSE - if (res) { - printf("No suitable image found\n"); - } -#endif - /* disable PAR register and PCI device ROM address devocer */ - pci_remove_rom_window(hose, rom_addr); - - pci_write_config_dword(dev, PCI_ROM_ADDRESS, 0); - - return res; -} diff --git a/lib_i386/pci_type1.c b/lib_i386/pci_type1.c deleted file mode 100644 index 225ae4a..0000000 --- a/lib_i386/pci_type1.c +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Support for type PCI configuration cycles. - * based on pci_indirect.c - * - * Copyright (C) 2002 Daniel Engström, Omicron Ceti AB, daniel@omicron.se. - * - * 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. - */ - -#include <common.h> -#include <asm/io.h> -#include <pci.h> - -#define cfg_read(val, addr, op) *val = op((int)(addr)) -#define cfg_write(val, addr, op) op((val), (int)(addr)) - -#define TYPE1_PCI_OP(rw, size, type, op, mask) \ -static int \ -type1_##rw##_config_##size(struct pci_controller *hose, \ - pci_dev_t dev, int offset, type val) \ -{ \ - outl(dev | (offset & 0xfc) | 0x80000000, (int)hose->cfg_addr); \ - cfg_##rw(val, hose->cfg_data + (offset & mask), op); \ - return 0; \ -} - - -TYPE1_PCI_OP(read, byte, u8 *, inb, 3) -TYPE1_PCI_OP(read, word, u16 *, inw, 2) -TYPE1_PCI_OP(read, dword, u32 *, inl, 0) - -TYPE1_PCI_OP(write, byte, u8, outb, 3) -TYPE1_PCI_OP(write, word, u16, outw, 2) -TYPE1_PCI_OP(write, dword, u32, outl, 0) - -void pci_setup_type1(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data) -{ - pci_set_ops(hose, - type1_read_config_byte, - type1_read_config_word, - type1_read_config_dword, - type1_write_config_byte, - type1_write_config_word, - type1_write_config_dword); - - hose->cfg_addr = (unsigned int *) cfg_addr; - hose->cfg_data = (unsigned char *) cfg_data; -} diff --git a/lib_i386/realmode.c b/lib_i386/realmode.c deleted file mode 100644 index 3c3c1fc..0000000 --- a/lib_i386/realmode.c +++ /dev/null @@ -1,100 +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 <asm/io.h> -#include <asm/ptrace.h> -#include <asm/realmode.h> - - -#define REALMODE_BASE ((char*)0x7c0) -#define REALMODE_MAILBOX ((char*)0xe00) - - -extern ulong _i386boot_realmode; -extern ulong _i386boot_realmode_size; -extern char realmode_enter; - -int realmode_setup(void) -{ - ulong i386boot_realmode = (ulong)&_i386boot_realmode; - ulong i386boot_realmode_size = (ulong)&_i386boot_realmode_size; - - /* copy the realmode switch code */ - if (i386boot_realmode_size > (REALMODE_MAILBOX-REALMODE_BASE)) { - printf("realmode switch too large (%ld bytes, max is %d)\n", - i386boot_realmode_size, (REALMODE_MAILBOX-REALMODE_BASE)); - return -1; - } - - memcpy(REALMODE_BASE, (void*)i386boot_realmode, i386boot_realmode_size); - asm("wbinvd\n"); - - return 0; -} - -int enter_realmode(u16 seg, u16 off, struct pt_regs *in, struct pt_regs *out) -{ - - /* setup out thin bios emulation */ - if (bios_setup()) { - return -1; - } - - if (realmode_setup()) { - return -1; - } - - in->eip = off; - in->xcs = seg; - if (3>(in->esp & 0xffff)) { - printf("Warning: entering realmode with sp < 4 will fail\n"); - } - - memcpy(REALMODE_MAILBOX, in, sizeof(struct pt_regs)); - asm("wbinvd\n"); - - __asm__ volatile ( - "lcall $0x20,%0\n" : : "i" (&realmode_enter) ); - - asm("wbinvd\n"); - memcpy(out, REALMODE_MAILBOX, sizeof(struct pt_regs)); - - return out->eax; -} - - -/* This code is supposed to access a realmode interrupt - * it does currently not work for me */ -int enter_realmode_int(u8 lvl, struct pt_regs *in, struct pt_regs *out) -{ - /* place two instructions at 0x700 */ - writeb(0xcd, 0x700); /* int $lvl */ - writeb(lvl, 0x701); - writeb(0xcb, 0x702); /* lret */ - asm("wbinvd\n"); - - enter_realmode(0x00, 0x700, in, out); - - return out->eflags&1; -} diff --git a/lib_i386/realmode_switch.S b/lib_i386/realmode_switch.S deleted file mode 100644 index d6c74ec..0000000 --- a/lib_i386/realmode_switch.S +++ /dev/null @@ -1,222 +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 - */ - - -/* 32bit -> 16bit -> 32bit mode switch code */ - -/* - * Stack frame at 0xe00 - * e00 ebx; - * e04 ecx; - * e08 edx; - * e0c esi; - * e10 edi; - * e14 ebp; - * e18 eax; - * e1c ds; - * e20 es; - * e24 fs; - * e28 gs; - * e2c orig_eax; - * e30 eip; - * e34 cs; - * e38 eflags; - * e3c esp; - * e40 ss; - */ - -#define a32 .byte 0x67; /* address size prefix 32 */ -#define o32 .byte 0x66; /* operand size prefix 32 */ - -.section .realmode, "ax" -.code16 - /* 16bit protected mode code here */ -.globl realmode_enter -realmode_enter: -o32 pusha -o32 pushf - cli - sidt saved_idt - sgdt saved_gdt - movl %esp, %eax - movl %eax, saved_protected_mode_esp - - movl $0x10, %eax - movl %eax, %esp - movw $0x28, %ax - movw %ax, %ds - movw %ax, %es - movw %ax, %fs - movw %ax, %gs - - lidt realmode_idt_ptr - movl %cr0, %eax /* Go back into real mode by */ - andl $0x7ffffffe, %eax /* clearing PE to 0 */ - movl %eax, %cr0 - ljmp $0x0,$do_realmode /* switch to real mode */ - -do_realmode: /* realmode code from here */ - movw %cs,%ax - movw %ax,%ds - movw %ax,%es - movw %ax,%fs - movw %ax,%gs - - /* create a temporary stack */ - - movw $0xc0, %ax - movw %ax, %ss - movw $0x200, %ax - movw %ax, %sp - - popl %ebx - popl %ecx - popl %edx - popl %esi - popl %edi - popl %ebp - popl %eax - movl %eax, temp_eax - popl %eax - movw %ax, %ds - popl %eax - movw %ax, %es - popl %eax - movw %ax, %fs - popl %eax - movw %ax, %gs - popl %eax /* orig_eax */ - popl %eax -cs movw %ax, temp_ip - popl %eax -cs movw %ax, temp_cs -o32 popf - popl %eax - popw %ss - movl %eax, %esp -cs movl temp_eax, %eax - wbinvd /* self-modifying code, - * better flush the cache */ - - .byte 0x9a /* lcall */ -temp_ip: - .word 0 /* new ip */ -temp_cs: - .word 0 /* new cs */ -realmode_ret: - /* save eax, esp and ss */ -cs movl %eax, saved_eax - movl %esp, %eax -cs movl %eax, saved_esp - movw %ss, %ax -cs movw %ax, saved_ss - - /* restore the stack, note that we set sp to 0x244; - * pt_regs is 0x44 bytes long and we push the structure - * backwards on to the stack, bottom first */ - - movw $0xc0, %ax - movw %ax, %ss - movw $0x244, %ax - movw %ax, %sp - - xorl %eax,%eax -cs movw saved_ss, %ax - pushl %eax -cs movl saved_esp, %eax - pushl %eax -o32 pushf - xorl %eax,%eax -cs movw temp_cs, %ax - pushl %eax -cs movw temp_ip, %ax - pushl %eax - pushl $0 - movw %gs, %ax - pushl %eax - movw %fs, %ax - pushl %eax - movw %es, %ax - pushl %eax - movw %ds, %ax - pushl %eax - movl saved_eax, %eax - pushl %eax - pushl %ebp - pushl %edi - pushl %esi - pushl %edx - pushl %ecx - pushl %ebx - -o32 cs lidt saved_idt -o32 cs lgdt saved_gdt /* Set GDTR */ - - movl %cr0, %eax /* Go back into protected mode */ - orl $1,%eax /* reset PE to 1 */ - movl %eax, %cr0 - jmp next_line /* flush prefetch queue */ -next_line: - movw $return_ptr, %ax - movw %ax,%bp -o32 cs ljmp *(%bp) - -.code32 -protected_mode: - movl $0x18,%eax /* reload GDT[3] */ - movw %ax,%fs /* reset FS */ - movw %ax,%ds /* reset DS */ - movw %ax,%gs /* reset GS */ - movw %ax,%es /* reset ES */ - movw %ax,%ss /* reset SS */ - movl saved_protected_mode_esp, %eax - movl %eax, %esp - popf - popa - ret - -temp_eax: - .long 0 - -saved_ss: - .word 0 -saved_esp: - .long 0 -saved_eax: - .long 0 - -realmode_idt_ptr: - .word 0x400 - .word 0x0, 0x0 - -saved_gdt: - .word 0, 0, 0, 0 -saved_idt: - .word 0, 0, 0, 0 - -saved_protected_mode_esp: - .long 0 - -return_ptr: - .long protected_mode - .word 0x10 diff --git a/lib_i386/timer.c b/lib_i386/timer.c deleted file mode 100644 index 5cb1f54..0000000 --- a/lib_i386/timer.c +++ /dev/null @@ -1,107 +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 <malloc.h> -#include <asm/io.h> -#include <asm/i8254.h> -#include <asm/ibmpc.h> - -struct timer_isr_function { - struct timer_isr_function *next; - timer_fnc_t *isr_func; -}; - -static struct timer_isr_function *first_timer_isr = NULL; -static volatile unsigned long system_ticks = 0; - -/* - * register_timer_isr() allows multiple architecture and board specific - * functions to be called every millisecond. Keep the execution time of - * each function as low as possible - */ -int register_timer_isr (timer_fnc_t *isr_func) -{ - struct timer_isr_function *new_func; - struct timer_isr_function *temp; - int flag; - - new_func = malloc(sizeof(struct timer_isr_function)); - - if (new_func == NULL) - return 1; - - new_func->isr_func = isr_func; - new_func->next = NULL; - - /* - * Don't allow timer interrupts while the - * linked list is being modified - */ - flag = disable_interrupts (); - - if (first_timer_isr == NULL) { - first_timer_isr = new_func; - } else { - temp = first_timer_isr; - while (temp->next != NULL) - temp = temp->next; - temp->next = new_func; - } - - if (flag) - enable_interrupts (); - - return 0; -} - -/* - * timer_isr() MUST be the registered interrupt handler for - */ -void timer_isr(void *unused) -{ - struct timer_isr_function *temp = first_timer_isr; - - system_ticks++; - - /* Execute each registered function */ - while (temp != NULL) { - temp->isr_func (); - temp = temp->next; - } -} - -void reset_timer (void) -{ - system_ticks = 0; -} - -ulong get_timer (ulong base) -{ - return (system_ticks - base); -} - -void set_timer (ulong t) -{ - system_ticks = t; -} diff --git a/lib_i386/video.c b/lib_i386/video.c deleted file mode 100644 index c58ed10..0000000 --- a/lib_i386/video.c +++ /dev/null @@ -1,237 +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 <stdio_dev.h> -#include <i8042.h> -#include <asm/ptrace.h> -#include <asm/realmode.h> -#include <asm/io.h> -#include <asm/pci.h> - - -/* basic textmode I/O from linux kernel */ -static char *vidmem = (char *)0xb8000; -static int vidport; -static int lines, cols; -static int orig_x, orig_y; - -static void beep(int dur) -{ - int i; - - outb_p(3, 0x61); - for (i=0;i<10*dur;i++) { - udelay(1000); - } - outb_p(0, 0x61); -} - -static void scroll(void) -{ - int i; - - memcpy ( vidmem, vidmem + cols * 2, ( lines - 1 ) * cols * 2 ); - for ( i = ( lines - 1 ) * cols * 2; i < lines * cols * 2; i += 2 ) - vidmem[i] = ' '; -} - -static void __video_putc(const char c, int *x, int *y) -{ - if (c == '\n') { - (*x) = 0; - if ( ++(*y) >= lines ) { - scroll(); - (*y)--; - } - } else if (c == '\b') { - if ((*x) != 0) { - --(*x); - vidmem [ ( (*x) + cols * (*y) ) * 2 ] = ' '; - } - } else if (c == '\r') { - (*x) = 0; - - } else if (c == '\a') { - beep(3); - - } else if (c == '\t') { - __video_putc(' ', x, y); - __video_putc(' ', x, y); - __video_putc(' ', x, y); - __video_putc(' ', x, y); - __video_putc(' ', x, y); - __video_putc(' ', x, y); - __video_putc(' ', x, y); - __video_putc(' ', x, y); - } else if (c == '\v') { - switch ((*x) % 8) { - case 0: - __video_putc(' ', x, y); - case 7: - __video_putc(' ', x, y); - case 6: - __video_putc(' ', x, y); - case 5: - __video_putc(' ', x, y); - case 4: - __video_putc(' ', x, y); - case 3: - __video_putc(' ', x, y); - case 2: - __video_putc(' ', x, y); - case 1: - __video_putc(' ', x, y); - } - } else if (c == '\f') { - int i; - for (i=0;i<lines*cols*2;i+=2) { - vidmem[i] = 0; - } - (*x) = 0; - (*y) = 0; - } else { - vidmem [ ( (*x) + cols * (*y) ) * 2 ] = c; - if ( ++(*x) >= cols ) { - (*x) = 0; - if ( ++(*y) >= lines ) { - scroll(); - (*y)--; - } - } - } -} - -static void video_putc(const char c) -{ - int x,y,pos; - - x = orig_x; - y = orig_y; - - __video_putc(c, &x, &y); - - orig_x = x; - orig_y = y; - - pos = (x + cols * y) * 2; /* Update cursor position */ - outb_p(14, vidport); - outb_p(0xff & (pos >> 9), vidport+1); - outb_p(15, vidport); - outb_p(0xff & (pos >> 1), vidport+1); -} - -static void video_puts(const char *s) -{ - int x,y,pos; - char c; - - x = orig_x; - y = orig_y; - - while ( ( c = *s++ ) != '\0' ) { - __video_putc(c, &x, &y); - } - - orig_x = x; - orig_y = y; - - pos = (x + cols * y) * 2; /* Update cursor position */ - outb_p(14, vidport); - outb_p(0xff & (pos >> 9), vidport+1); - outb_p(15, vidport); - outb_p(0xff & (pos >> 1), vidport+1); -} - -int video_init(void) -{ - u16 pos; - - static struct stdio_dev vga_dev; - static struct stdio_dev kbd_dev; - - vidmem = (char *) 0xb8000; - vidport = 0x3d4; - - lines = 25; - cols = 80; - - outb_p(14, vidport); - pos = inb_p(vidport+1); - pos <<= 8; - outb_p(15, vidport); - pos |= inb_p(vidport+1); - - orig_x = pos%cols; - orig_y = pos/cols; - -#if 0 - printf("pos %x %d %d\n", pos, orig_x, orig_y); -#endif - if (orig_y > lines) { - orig_x = orig_y =0; - } - - - memset(&vga_dev, 0, sizeof(vga_dev)); - strcpy(vga_dev.name, "vga"); - vga_dev.ext = 0; - vga_dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_SYSTEM; - vga_dev.putc = video_putc; /* 'putc' function */ - vga_dev.puts = video_puts; /* 'puts' function */ - vga_dev.tstc = NULL; /* 'tstc' function */ - vga_dev.getc = NULL; /* 'getc' function */ - - if (stdio_register(&vga_dev) == 0) { - return 1; - } - - if (i8042_kbd_init()) { - return 1; - } - - memset(&kbd_dev, 0, sizeof(kbd_dev)); - strcpy(kbd_dev.name, "kbd"); - kbd_dev.ext = 0; - kbd_dev.flags = DEV_FLAGS_INPUT | DEV_FLAGS_SYSTEM; - kbd_dev.putc = NULL; /* 'putc' function */ - kbd_dev.puts = NULL; /* 'puts' function */ - kbd_dev.tstc = i8042_tstc; /* 'tstc' function */ - kbd_dev.getc = i8042_getc; /* 'getc' function */ - - if (stdio_register(&kbd_dev) == 0) { - return 1; - } - return 0; -} - - -int drv_video_init(void) -{ - if (video_bios_init()) { - return 1; - } - - return video_init(); -} diff --git a/lib_i386/video_bios.c b/lib_i386/video_bios.c deleted file mode 100644 index c8060e6..0000000 --- a/lib_i386/video_bios.c +++ /dev/null @@ -1,222 +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> - -#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 - -#ifdef CONFIG_PCI - -#ifdef PCI_BIOS_DEBUG -#define RELOC_16(seg, off) *(u32*)(seg << 4 | (u32)&off) -extern u32 num_pci_bios_present; -extern u32 num_pci_bios_find_device; -extern u32 num_pci_bios_find_class; -extern u32 num_pci_bios_generate_special_cycle; -extern u32 num_pci_bios_read_cfg_byte; -extern u32 num_pci_bios_read_cfg_word; -extern u32 num_pci_bios_read_cfg_dword; -extern u32 num_pci_bios_write_cfg_byte; -extern u32 num_pci_bios_write_cfg_word; -extern u32 num_pci_bios_write_cfg_dword; -extern u32 num_pci_bios_get_irq_routing; -extern u32 num_pci_bios_set_irq; -extern u32 num_pci_bios_unknown_function; - -void print_bios_bios_stat(void) -{ - printf("16 bit functions:\n"); - printf("pci_bios_present: %d\n", RELOC_16(0xf000, num_pci_bios_present)); - printf("pci_bios_find_device: %d\n", RELOC_16(0xf000, num_pci_bios_find_device)); - printf("pci_bios_find_class: %d\n", RELOC_16(0xf000, num_pci_bios_find_class)); - printf("pci_bios_generate_special_cycle: %d\n", RELOC_16(0xf000, num_pci_bios_generate_special_cycle)); - printf("pci_bios_read_cfg_byte: %d\n", RELOC_16(0xf000, num_pci_bios_read_cfg_byte)); - printf("pci_bios_read_cfg_word: %d\n", RELOC_16(0xf000, num_pci_bios_read_cfg_word)); - printf("pci_bios_read_cfg_dword: %d\n", RELOC_16(0xf000, num_pci_bios_read_cfg_dword)); - printf("pci_bios_write_cfg_byte: %d\n", RELOC_16(0xf000, num_pci_bios_write_cfg_byte)); - printf("pci_bios_write_cfg_word: %d\n", RELOC_16(0xf000, num_pci_bios_write_cfg_word)); - printf("pci_bios_write_cfg_dword: %d\n", RELOC_16(0xf000, num_pci_bios_write_cfg_dword)); - printf("pci_bios_get_irq_routing: %d\n", RELOC_16(0xf000, num_pci_bios_get_irq_routing)); - printf("pci_bios_set_irq: %d\n", RELOC_16(0xf000, num_pci_bios_set_irq)); - printf("pci_bios_unknown_function: %d\n", RELOC_16(0xf000, num_pci_bios_unknown_function)); - -} -#endif - -#ifdef CONFIG_VIDEO - -#define PCI_CLASS_VIDEO 3 -#define PCI_CLASS_VIDEO_STD 0 -#define PCI_CLASS_VIDEO_PROG_IF_VGA 0 - -static struct pci_device_id supported[] = { - {PCI_VIDEO_VENDOR_ID, PCI_VIDEO_DEVICE_ID}, - {} -}; - -static u32 probe_pci_video(void) -{ - pci_dev_t devbusfn; - - if ((devbusfn = pci_find_devices(supported, 0) != -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 */ - if (pci_enable_legacy_video_ports(pci_bus_to_hose(PCI_BUS(devbusfn)))) { - 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; - - if (0 == (ptr = isa_map_rom(0xc0000, 0x8000))) { - return -1; - } - if (NULL == (buf=malloc(0x8000))) { - 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; - - /* clear the video bios area in case we warmbooted */ - memset((void*)0xc0000, 0, 0x8000); - memset(®s, 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) { - int size; - int i; - u8 sum; - - PRINTF("Found video bios signature\n"); - size = 512*readb(0xc0002); - 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, ®s, ®s); - PRINTF("INT 0x10 vector after: %04x:%04x\n", - readw(0x42), readw(0x40)); - PRINTF("BIOS returned %scarry\n", regs.eflags & 1?"":"NOT "); -#ifdef PCI_BIOS_DEBUG - print_bios_bios_stat(); -#endif - return (regs.eflags & 1); - - } - - return 1; - -} -#endif -#endif diff --git a/lib_i386/zimage.c b/lib_i386/zimage.c deleted file mode 100644 index c3b4e59..0000000 --- a/lib_i386/zimage.c +++ /dev/null @@ -1,225 +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 - */ - -/* - * Linux i386 zImage and bzImage loading - * - * based on the procdure described in - * linux/Documentation/i386/boot.txt - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/ptrace.h> -#include <asm/zimage.h> -#include <asm/realmode.h> -#include <asm/byteorder.h> - -/* - * Memory lay-out: - * - * relative to setup_base (which is 0x90000 currently) - * - * 0x0000-0x7FFF Real mode kernel - * 0x8000-0x8FFF Stack and heap - * 0x9000-0x90FF Kernel command line - */ -#define DEFAULT_SETUP_BASE 0x90000 -#define COMMAND_LINE_OFFSET 0x9000 -#define HEAP_END_OFFSET 0x8e00 - -#define COMMAND_LINE_SIZE 2048 - -static void build_command_line(char *command_line, int auto_boot) -{ - char *env_command_line; - - command_line[0] = '\0'; - - env_command_line = getenv("bootargs"); - - /* set console= argument if we use a serial console */ - if (NULL == strstr(env_command_line, "console=")) { - if (0==strcmp(getenv("stdout"), "serial")) { - - /* We seem to use serial console */ - sprintf(command_line, "console=ttyS0,%s ", - getenv("baudrate")); - } - } - - if (auto_boot) { - strcat(command_line, "auto "); - } - - if (NULL != env_command_line) { - strcat(command_line, env_command_line); - } - - - printf("Kernel command line: \"%s\"\n", command_line); -} - -void *load_zimage(char *image, unsigned long kernel_size, - unsigned long initrd_addr, unsigned long initrd_size, - int auto_boot) -{ - void *setup_base; - int setup_size; - int bootproto; - int big_image; - void *load_address; - - - setup_base = (void*)DEFAULT_SETUP_BASE; /* base address for real-mode segment */ - - if (KERNEL_MAGIC != *(u16*)(image + BOOT_FLAG_OFF)) { - printf("Error: Invalid kernel magic (found 0x%04x, expected 0xaa55)\n", - *(u16*)(image + BOOT_FLAG_OFF)); - return 0; - } - - - /* determine boot protocol version */ - if (KERNEL_V2_MAGIC == *(u32*)(image+HEADER_OFF)) { - bootproto = *(u16*)(image+VERSION_OFF); - } else { - /* Very old kernel */ - bootproto = 0x0100; - } - - /* determine size of setup */ - if (0 == *(u8*)(image + SETUP_SECTS_OFF)) { - setup_size = 5 * 512; - } else { - setup_size = (*(u8*)(image + SETUP_SECTS_OFF) + 1) * 512; - } - - if (setup_size > SETUP_MAX_SIZE) { - printf("Error: Setup is too large (%d bytes)\n", setup_size); - } - - /* Determine image type */ - big_image = (bootproto >= 0x0200) && (*(u8*)(image + LOADFLAGS_OFF) & BIG_KERNEL_FLAG); - - /* Derermine load address */ - load_address = (void*)(big_image ? BZIMAGE_LOAD_ADDR:ZIMAGE_LOAD_ADDR); - - /* load setup */ - memmove(setup_base, image, setup_size); - - printf("Using boot protocol version %x.%02x\n", - (bootproto & 0xff00) >> 8, bootproto & 0xff); - - - if (bootproto == 0x0100) { - - *(u16*)(setup_base + CMD_LINE_MAGIC_OFF) = COMMAND_LINE_MAGIC; - *(u16*)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET; - - /* A very old kernel MUST have its real-mode code - * loaded at 0x90000 */ - - if ((u32)setup_base != 0x90000) { - /* Copy the real-mode kernel */ - memmove((void*)0x90000, setup_base, setup_size); - /* Copy the command line */ - memmove((void*)0x99000, setup_base+COMMAND_LINE_OFFSET, - COMMAND_LINE_SIZE); - - setup_base = (void*)0x90000; /* Relocated */ - } - - /* It is recommended to clear memory up to the 32K mark */ - memset((void*)0x90000 + setup_size, 0, SETUP_MAX_SIZE-setup_size); - } - - if (bootproto >= 0x0200) { - *(u8*)(setup_base + TYPE_OF_LOADER_OFF) = 0xff; - printf("Linux kernel version %s\n", - (char*)(setup_base + SETUP_START_OFFSET + - *(u16*)(setup_base + START_SYS_OFF + 2))); - - if (initrd_addr) { - printf("Initial RAM disk at linear address 0x%08lx, size %ld bytes\n", - initrd_addr, initrd_size); - - *(u32*)(setup_base + RAMDISK_IMAGE_OFF) = initrd_addr; - *(u32*)(setup_base + RAMDISK_SIZE_OFF)=initrd_size; - } - } - - if (bootproto >= 0x0201) { - *(u16*)(setup_base + HEAP_END_PTR_OFF) = HEAP_END_OFFSET; - - /* CAN_USE_HEAP */ - *(u8*)(setup_base + LOADFLAGS_OFF) = - *(u8*)(setup_base + LOADFLAGS_OFF) | HEAP_FLAG; - } - - if (bootproto >= 0x0202) { - *(u32*)(setup_base + CMD_LINE_PTR_OFF) = (u32)setup_base + COMMAND_LINE_OFFSET; - } else if (bootproto >= 0x0200) { - *(u16*)(setup_base + CMD_LINE_MAGIC_OFF) = COMMAND_LINE_MAGIC; - *(u16*)(setup_base + CMD_LINE_OFFSET_OFF) = COMMAND_LINE_OFFSET; - *(u16*)(setup_base + SETUP_MOVE_SIZE_OFF) = 0x9100; - } - - - if (big_image) { - if ((kernel_size - setup_size) > BZIMAGE_MAX_SIZE) { - printf("Error: bzImage kernel too big! (size: %ld, max: %d)\n", - kernel_size - setup_size, BZIMAGE_MAX_SIZE); - return 0; - } - - } else if ((kernel_size - setup_size) > ZIMAGE_MAX_SIZE) { - printf("Error: zImage kernel too big! (size: %ld, max: %d)\n", - kernel_size - setup_size, ZIMAGE_MAX_SIZE); - return 0; - } - - /* build command line at COMMAND_LINE_OFFSET */ - build_command_line(setup_base + COMMAND_LINE_OFFSET, auto_boot); - - printf("Loading %czImage at address 0x%08x (%ld bytes)\n", big_image ? 'b' : ' ', - (u32)load_address, kernel_size - setup_size); - - - memmove(load_address, image + setup_size, kernel_size - setup_size); - - /* ready for booting */ - return setup_base; -} - -void boot_zimage(void *setup_base) -{ - struct pt_regs regs; - - memset(®s, 0, sizeof(struct pt_regs)); - regs.xds = (u32)setup_base >> 4; - regs.xss = 0x9000; - regs.esp = 0x9000; - regs.eflags = 0; - enter_realmode(((u32)setup_base+SETUP_START_OFFSET)>>4, 0, ®s, ®s); -} |