[LinuxBIOS] r2411 - in trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61: . realmode rtl8139
svn at openbios.org
svn at openbios.org
Wed Sep 13 23:25:21 CEST 2006
Author: rminnich
Date: 2006-09-13 23:25:20 +0200 (Wed, 13 Sep 2006)
New Revision: 2411
Added:
trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/cs5536_usb.c
trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/
trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/Config.lb
trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/chip.h
trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/vgabios.c
trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/
trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/Config.lb
trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/chip.h
trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/rtl8139.c
Log:
new presents from artec group :-)
Signed-off-by: Indrek Kruusa
Added: trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/cs5536_usb.c
===================================================================
--- trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/cs5536_usb.c (rev 0)
+++ trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/cs5536_usb.c 2006-09-13 21:25:20 UTC (rev 2411)
@@ -0,0 +1,95 @@
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+
+#include <cpu/amd/lxdef.h>
+#include <cpu/x86/msr.h>
+
+#include "cs5536.h"
+
+#define GLIU2_P2D_BM_1 0x51010021 // southbridge GLIU P2D base mask descriptor
+#define USBMSRUOCB 0x5120000b // USB option controller base address register
+#define UOCMUX (USBOC_BASE_ADDRESS + 4) // option controller native multiplex register
+
+#define USBOC_BASE_ADDRESS 0xe1017000 // USB option contoller base address, used only here
+#define USBOC_PORT4_FUNCTION 2 // USB port 4 desired function (0 = disabled, 2 = host, 3 = device)
+
+static void ohci_init(struct device *dev)
+{
+ uint32_t n;
+ msr_t msr;
+
+ printk_debug("USB: Setting up OHCI controller... ");
+
+ // enable controller bus mastering
+ n = pci_read_config32(dev, PCI_COMMAND);
+ pci_write_config32(dev, PCI_COMMAND,
+ n | PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
+ PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE);
+
+ // set the USB option controller base address
+ msr.hi = 0x0000000a;
+ msr.lo = USBOC_BASE_ADDRESS;
+ wrmsr(USBMSRUOCB, msr);
+
+ // create the GLIU memory mapping
+ msr.hi = 0x40000000 | ((USBOC_BASE_ADDRESS >> 24) & 0x000000ff);
+ msr.lo = ((USBOC_BASE_ADDRESS << 8) & 0xfff00000) | 0x000fffff;
+ wrmsr(GLIU2_P2D_BM_1, msr);
+
+ // set the multiplex register with port 4 function
+ *((uint32_t*)UOCMUX) = USBOC_PORT4_FUNCTION;
+
+ // finally, disable the USB option controller memory mapping
+ msr.hi = 0x000000ff;
+ msr.lo = 0xfff00000;
+ wrmsr(GLIU2_P2D_BM_1, msr);
+
+ printk_debug("done.\n");
+}
+
+static void ehci_init(struct device *dev)
+{
+ uint32_t cmd;
+ printk_debug("USB: Setting up EHCI controller... ");
+
+ // enable controller bus mastering
+ cmd = pci_read_config32(dev, PCI_COMMAND);
+ pci_write_config32(dev, PCI_COMMAND,
+ cmd | PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
+ PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE);
+
+ printk_debug("done.\n");
+}
+
+static struct device_operations ohci_ops = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .init = ohci_init,
+ .scan_bus = 0,
+ .enable = southbridge_enable,
+};
+
+static struct device_operations ehci_ops = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .init = ehci_init,
+ .scan_bus = 0,
+ .enable = southbridge_enable,
+};
+
+static struct pci_driver cs5536_usb1_driver __pci_driver = {
+ .ops = &ohci_ops,
+ .vendor = PCI_VENDOR_ID_AMD,
+ .device = PCI_DEVICE_ID_AMD_CS5536_OHCI
+};
+
+static struct pci_driver cs5536_usb2_driver __pci_driver = {
+ .ops = &ehci_ops,
+ .vendor = PCI_VENDOR_ID_AMD,
+ .device = PCI_DEVICE_ID_AMD_CS5536_EHCI
+};
Added: trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/Config.lb
===================================================================
--- trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/Config.lb (rev 0)
+++ trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/Config.lb 2006-09-13 21:25:20 UTC (rev 2411)
@@ -0,0 +1,2 @@
+config chip.h
+driver vgabios.o
Added: trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/chip.h
===================================================================
--- trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/chip.h (rev 0)
+++ trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/chip.h 2006-09-13 21:25:20 UTC (rev 2411)
@@ -0,0 +1,11 @@
+#ifndef PCI_REALMODE_H
+#define PCI_REALMODE_H
+
+struct drivers_pci_realmode_config
+{
+ unsigned long rom_address;
+};
+//struct chip_operations;
+extern struct chip_operations drivers_pci_realmode_ops;
+
+#endif
Added: trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/vgabios.c
===================================================================
--- trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/vgabios.c (rev 0)
+++ trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/realmode/vgabios.c 2006-09-13 21:25:20 UTC (rev 2411)
@@ -0,0 +1,959 @@
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#undef __KERNEL__
+#include <arch/io.h>
+#include <string.h>
+#include "chip.h"
+
+/* vgabios.c. Derived from: */
+
+/*------------------------------------------------------------ -*- C -*-
+ * 2 Kernel Monte a.k.a. Linux loading Linux on x86
+ *
+ * Erik Arjan Hendriks <hendriks at lanl.gov>
+ *
+ * This version is a derivative of the original two kernel monte
+ * which is (C) 2000 Scyld.
+ *
+ * Copyright (C) 2000 Scyld Computing Corporation
+ *
+ * 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.
+ *
+ * Portions related to the alpha architecture are:
+ *
+ * Copyright(C) 2001 University of California. LA-CC Number 01-67.
+ * This software has been authored by an employee or employees of the
+ * University of California, operator of the Los Alamos National
+ * Laboratory under Contract No. W-7405-ENG-36 with the U.S.
+ * Department of Energy. The U.S. Government has rights to use,
+ * reproduce, and distribute this software. If the software is
+ * modified to produce derivative works, such modified software should
+ * be clearly marked, so as not to confuse it with the version
+ * available from LANL.
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by
+ * reference to http://www.gnu.org/licenses/gpl.html.
+ *
+ * This software is provided by the author(s) "as is" and any express
+ * or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose
+ * are disclaimed. In no event shall the author(s) be liable for any
+ * direct, indirect, incidental, special, exemplary, or consequential
+ * damages (including, but not limited to, procurement of substitute
+ * goods or services; loss of use, data, or profits; or business
+ * interruption) however caused and on any theory of liability,
+ * whether in contract, strict liability, or tort (including
+ * negligence or otherwise) arising in any way out of the use of this
+ * software, even if advised of the possibility of such damage.
+ *
+ * $Id: vgabios.c,v 1.100 2006/09/12 15:31:49 indrek Exp $
+ *--------------------------------------------------------------------*/
+
+/* Modified to be a self sufficient plug in so that it can be used
+ without reliance on other parts of core Linuxbios
+ (C) 2005 Nick.Barker9 at btinternet.com
+
+ Used initially for epia-m where there are problems getting the bios
+ emulator to successfully run this bios.
+*/
+
+
+
+
+/*
+ Modified to be an universal driver for loading VGA ROMs.
+ Aug 2006, anti.sullin at artecdesign.ee, Artec Design
+
+ USAGE:
+ define in your motherboard Config.lb file in device hierarchy
+ around the VGA pci device realmode chip and define its rom address.
+ Rom address is read from Config.lb, this rom is then copied to 0xC000 and then excecuted
+
+ chip drivers/pci/realmode
+ device pci 1.1 on end # VGA
+ register "rom_address" = "0xfffc0000" # at the beginning of 256k
+ end
+
+ then, chip enable is called at this list first traversal, and this sets
+ up device's init callback. Device init is called during last list traversal and
+ so, other hw should be already initialized to run vga bios successfully.
+*/
+
+
+
+
+
+
+
+
+
+/* Declare a temporary global descriptor table - necessary because the
+ Core part of the bios no longer sets up any 16 bit segments */
+__asm__ (
+ /* pointer to original gdt */
+ "gdtarg: \n"
+ " .word gdt_limit \n"
+ " .long gdt \n"
+
+ /* compute the table limit */
+ "__mygdt_limit = __mygdt_end - __mygdt - 1 \n"
+
+ "__mygdtaddr: \n"
+ " .word __mygdt_limit \n"
+ " .long __mygdt \n"
+
+ "__mygdt: \n"
+ /* selgdt 0, unused */
+ " .word 0x0000, 0x0000 \n"
+ " .byte 0x00, 0x00, 0x00, 0x00 \n"
+
+ /* selgdt 8, unused */
+ " .word 0x0000, 0x0000 \n"
+ " .byte 0x00, 0x00, 0x00, 0x00 \n"
+
+ /* selgdt 0x10, flat code segment */
+ " .word 0xffff, 0x0000 \n"
+ " .byte 0x00, 0x9b, 0xcf, 0x00 \n"
+
+ /* selgdt 0x18, flat data segment */
+ " .word 0xffff, 0x0000 \n"
+ " .byte 0x00, 0x93, 0xcf, 0x00 \n"
+
+ /* selgdt 0x20, unused */
+ " .word 0x0000, 0x0000 \n"
+ " .byte 0x00, 0x00, 0x00, 0x00 \n"
+
+ /* selgdt 0x28 16-bit 64k code at 0x00000000 */
+ " .word 0xffff, 0x0000 \n"
+ " .byte 0, 0x9a, 0, 0 \n"
+
+ /* selgdt 0x30 16-bit 64k data at 0x00000000 */
+ " .word 0xffff, 0x0000 \n"
+ " .byte 0, 0x92, 0, 0 \n"
+
+ "__mygdt_end: \n"
+);
+
+/* Declare a pointer to where our idt is going to be i.e. at mem zero */
+__asm__ ("__myidt: \n"
+ /* 16-bit limit */
+ " .word 1023 \n"
+ /* 24-bit base */
+ " .long 0 \n"
+ " .word 0 \n"
+);
+
+/* The address arguments to this function are PHYSICAL ADDRESSES */
+static void real_mode_switch_call_vga(unsigned long devfn)
+{
+ __asm__ __volatile__ (
+ // paranoia -- does ecx get saved? not sure. This is
+ // the easiest safe thing to do.
+ " pushal \n"
+ /* save the stack */
+ " mov %esp, __stack \n"
+ " jmp 1f \n"
+ "__stack: .long 0 \n"
+ "1:\n"
+ /* get devfn into %ecx */
+ " movl %esp, %ebp \n"
+ " movl 8(%ebp), %ecx \n"
+ /* load 'our' gdt */
+ " lgdt %cs:__mygdtaddr \n"
+
+ /* This configures CS properly for real mode. */
+ " ljmp $0x28, $__rms_16bit\n"
+ "__rms_16bit: \n"
+ " .code16 \n"
+ /* 16 bit code from here on... */
+
+ /* Load the segment registers w/ properly configured segment
+ * descriptors. They will retain these configurations (limits,
+ * writability, etc.) once protected mode is turned off. */
+ " mov $0x30, %ax \n"
+ " mov %ax, %ds \n"
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov %ax, %ss \n"
+
+ /* Turn off protection (bit 0 in CR0) */
+ " movl %cr0, %eax \n"
+ " andl $0xFFFFFFFE, %eax \n"
+ " movl %eax, %cr0 \n"
+
+ /* Now really going into real mode */
+ " ljmp $0, $__rms_real\n"
+ "__rms_real: \n"
+
+ /* put the stack at the end of page zero.
+ * that way we can easily share it between real and protected,
+ * since the 16-bit ESP at segment 0 will work for any case. */
+ /* Setup a stack */
+ " mov $0x0, %ax \n"
+ " mov %ax, %ss \n"
+ " movl $0x1000, %eax \n"
+ " movl %eax, %esp \n"
+
+ /* Load our 16 it idt */
+ " xor %ax, %ax \n"
+ " mov %ax, %ds \n"
+ " lidt __myidt \n"
+
+ /* Dump zeros in the other segregs */
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov $0x40, %ax \n"
+ " mov %ax, %ds \n"
+ " mov %cx, %ax \n"
+
+ /* run VGA BIOS at 0xc000:0003 */
+ " lcall $0xc000, $0x0003\n"
+
+ /* if we got here, just about done.
+ * Need to get back to protected mode */
+ " movl %cr0, %eax \n"
+ " orl $0x0000001, %eax\n" /* PE = 1 */
+ " movl %eax, %cr0 \n"
+
+ /* Now that we are in protected mode jump to a 32 bit code segment. */
+ " data32 ljmp $0x10, $vgarestart\n"
+ "vgarestart:\n"
+ " .code32\n"
+ " movw $0x18, %ax \n"
+ " mov %ax, %ds \n"
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov %ax, %ss \n"
+
+ /* restore proper gdt and idt */
+ " lgdt %cs:gdtarg \n"
+ " lidt idtarg \n"
+
+ ".globl vga_exit \n"
+ "vga_exit: \n"
+ " mov __stack, %esp \n"
+ " popal \n"
+ );
+}
+
+__asm__ (".text\n""real_mode_switch_end:\n");
+extern char real_mode_switch_end[];
+
+/* ============================================================================================
+ * run VGA ROM
+ * */
+
+void do_vgabios(device_t dev)
+{
+
+ unsigned long busdevfn;
+ unsigned int rom = dev->rom_address;
+ unsigned char *buf;
+ unsigned int size = 64*1024;
+ int i;
+
+ /* clear vga bios data area */
+ for (i = 0x400; i < 0x500; i++) {
+ *(unsigned char *) i = 0;
+ }
+
+ if (!dev) {
+ printk_debug("NO VGA FOUND\n");
+ return;
+ }
+ printk_debug("found VGA: vid=%x, did=%x\n", dev->vendor, dev->device);
+
+ /* declare rom address here - keep any config data out of the way
+ * of core LXB stuff */
+
+ //pci_write_config32(dev, PCI_ROM_ADDRESS, rom|1);
+ printk_debug("rom base, size: %x\n", rom);
+
+ buf = (unsigned char *) rom;
+ if ((buf[0] == 0x55) && (buf[1] == 0xaa)) {
+ memcpy((void *) 0xc0000, buf, size);
+
+// write_protect_vgabios(); // in northbridge, not universal
+
+ // check signature again
+ buf = (unsigned char *) 0xc0000;
+ if (buf[0]==0x55 && buf[1]==0xAA) {
+ busdevfn = (dev->bus->secondary << 8) | dev->path.u.pci.devfn;
+ printk_debug("bus/devfn = %#x\n", busdevfn);
+
+ real_mode_switch_call_vga(busdevfn);
+ } else
+ printk_debug("Failed to copy VGA BIOS to 0xc0000\n");
+ } else
+ printk_debug("BAD SIGNATURE 0x%x 0x%x\n", buf[0], buf[1]);
+
+ pci_write_config32(dev, PCI_ROM_ADDRESS, 0);
+}
+
+/* ============================================================================================
+/* call vga bios int 10 function 0x4f14 to enable main console
+ *
+ * vga bios does not always autosence the main console so forcing it on is good !!
+ * */
+static void vga_enable_console(void)
+{
+ __asm__ __volatile__ (
+ /* paranoia -- does ecx get saved? not sure. This is
+ * the easiest safe thing to do. */
+ " pushal \n"
+ /* save the stack */
+ " mov %esp, __stack \n"
+
+ /* load 'our' gdt */
+ " lgdt %cs:__mygdtaddr \n"
+
+ /* This configures CS properly for real mode. */
+ " ljmp $0x28, $__vga_ec_16bit\n"
+ "__vga_ec_16bit: \n"
+ " .code16 \n"
+ /* 16 bit code from here on... */
+
+ /* Load the segment registers w/ properly configured segment
+ * descriptors. They will retain these configurations (limits,
+ * writability, etc.) once protected mode is turned off. */
+ " mov $0x30, %ax \n"
+ " mov %ax, %ds \n"
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov %ax, %ss \n"
+
+ /* Turn off protection (bit 0 in CR0) */
+ " movl %cr0, %eax \n"
+ " andl $0xFFFFFFFE, %eax\n"
+ " movl %eax, %cr0 \n"
+
+ /* Now really going into real mode */
+ " ljmp $0, $__vga_ec_real \n"
+ "__vga_ec_real: \n"
+
+ /* put the stack at the end of page zero.
+ * that way we can easily share it between real and protected,
+ * since the 16-bit ESP at segment 0 will work for any case. */
+ /* Setup a stack */
+ " mov $0x0, %ax \n"
+ " mov %ax, %ss \n"
+ " movl $0x1000, %eax \n"
+ " movl %eax, %esp \n"
+
+ /* debugging for RGM */
+ " mov $0x11, %al \n"
+ " outb %al, $0x80 \n"
+
+ /* Load our 16 it idt */
+ " xor %ax, %ax \n"
+ " mov %ax, %ds \n"
+ " lidt __myidt \n"
+
+ /* Dump zeros in the other segregs */
+ " mov %ax, %ds \n"
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+
+ /* ask bios to enable main console */
+ /* set up for int 10 call - values found from X server
+ * bios call routines */
+ " movw $0x4f14,%ax \n"
+ " movw $0x8003,%bx \n"
+ " movw $1, %cx \n"
+ " movw $0, %dx \n"
+ " movw $0, %di \n"
+ " int $0x10 \n"
+
+ " movb $0x55, %al \n"
+ " outb %al, $0x80 \n"
+
+ /* if we got here, just about done.
+ * Need to get back to protected mode */
+ " movl %cr0, %eax \n"
+ " orl $0x0000001, %eax\n" /* PE = 1 */
+ " movl %eax, %cr0 \n"
+
+ /* Now that we are in protected mode jump to a 32 bit code segment. */
+ " data32 ljmp $0x10, $vga_ec_restart\n"
+ "vga_ec_restart:\n"
+ " .code32\n"
+ " movw $0x18, %ax \n"
+ " mov %ax, %ds \n"
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov %ax, %ss \n"
+
+ /* restore proper gdt and idt */
+ " lgdt %cs:gdtarg \n"
+ " lidt idtarg \n"
+ " .globl vga__ec_exit \n"
+ "vga_ec_exit:\n"
+ " mov __stack, %esp \n"
+ " popal\n"
+ );
+}
+
+
+
+
+
+/* ============================================================================================
+ * real-mode interrupt handlers.
+ * These are handled because VGA ROMs tend to call bios ints in real mode
+ * */
+
+
+// we had hoped to avoid this.
+// this is a stub IDT only. It's main purpose is to ignore calls
+// to the BIOS.
+// no longer. Dammit. We have to respond to these.
+struct realidt {
+ unsigned short offset, cs;
+};
+
+// from a handy writeup that andrey found.
+
+// handler.
+// There are some assumptions we can make here.
+// First, the Top Of Stack (TOS) is located on the top of page zero.
+// we can share this stack between real and protected mode.
+// that simplifies a lot of things ...
+// we'll just push all the registers on the stack as longwords,
+// and pop to protected mode.
+// second, since this only ever runs as part of linuxbios,
+// we know all the segment register values -- so we don't save any.
+// keep the handler that calls things small. It can do a call to
+// more complex code in linuxbios itself. This helps a lot as we don't
+// have to do address fixup in this little stub, and calls are absolute
+// so the handler is relocatable.
+void handler_vga(void)
+{
+ __asm__ __volatile__ (
+ " .code16 \n"
+ "idthandle: \n"
+ " pushal \n"
+ " movb $0, %al \n"
+ " ljmp $0, $callbiosint16\n"
+ "end_idthandle: \n"
+ " .code32 \n"
+ );
+}
+
+void debughandler_vga(void)
+{
+ __asm__ __volatile__ (
+ " .code16 \n"
+ "debughandle: \n"
+ " pushw %cx \n"
+ " movw $250, %cx \n"
+ "dbh1: \n"
+ " loop dbh1 \n"
+ " popw %cx \n"
+ " iret \n"
+ "end_debughandle: \n"
+ ".code32 \n"
+ );
+}
+
+// Calling conventions. The first C function is called with this stuff
+// on the stack. They look like value parameters, but note that if you
+// modify them they will go back to the INTx function modified.
+// the C function will call the biosint function with these as
+// REFERENCE parameters. In this way, we can easily get
+// returns back to the INTx caller (i.e. vgabios)
+void callbiosint_vga(void)
+{
+ __asm__ __volatile__ (
+ " .code16 \n"
+ "callbiosint16: \n"
+ " push %ds \n"
+ " push %es \n"
+ " push %fs \n"
+ " push %gs \n"
+ // clean up the int #. To save space we put it in the lower
+ // byte. But the top 24 bits are junk.
+ " andl $0xff, %eax\n"
+ // this push does two things:
+ // - put the INT # on the stack as a parameter
+ // - provides us with a temp for the %cr0 mods.
+ " pushl %eax \n"
+ " movl %cr0, %eax\n"
+ " orl $0x00000001, %eax\n" /* PE = 1 */
+ " movl %eax, %cr0\n"
+ /* Now that we are in protected mode jump to a 32 bit code segment. */
+ " data32 ljmp $0x10, $biosprotect\n"
+ "biosprotect: \n"
+ " .code32 \n"
+ " movw $0x18, %ax \n"
+ " mov %ax, %ds \n"
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov %ax, %ss \n"
+ " lidt idtarg \n"
+ " call biosint_vga \n"
+ // back to real mode ...
+ " ljmp $0x28, $__rms_16bit2\n"
+ "__rms_16bit2: \n"
+ " .code16 \n"
+ /* 16 bit code from here on... */
+ /* Load the segment registers w/ properly configured segment
+ * descriptors. They will retain these configurations (limits,
+ * writability, etc.) once protected mode is turned off. */
+ " mov $0x30, %ax \n"
+ " mov %ax, %ds \n"
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov %ax, %ss \n"
+
+ /* Turn off protection (bit 0 in CR0) */
+ " movl %cr0, %eax \n"
+ " andl $0xFFFFFFFE, %eax \n"
+ " movl %eax, %cr0 \n"
+
+ /* Now really going into real mode */
+ " ljmp $0, $__rms_real2 \n"
+ "__rms_real2: \n"
+
+ /* Setup a stack
+ * FixME: where is esp? */
+ " mov $0x0, %ax \n"
+ " mov %ax, %ss \n"
+
+ /* ebugging for RGM */
+ " mov $0x11, %al \n"
+ " outb %al, $0x80 \n"
+
+ /* Load our 16 it idt */
+ " xor %ax, %ax \n"
+ " mov %ax, %ds \n"
+ " lidt __myidt \n"
+
+ /* Dump zeros in the other segregs */
+ " mov %ax, %es \n"
+ " mov %ax, %fs \n"
+ " mov %ax, %gs \n"
+ " mov $0x40, %ax \n"
+ " mov %ax, %ds \n"
+
+ /* pop the INT # that you pushed earlier */
+ " popl %eax \n"
+ " pop %gs \n"
+ " pop %fs \n"
+ " pop %es \n"
+ " pop %ds \n"
+ " popal \n"
+ " iret \n"
+ " .code32 \n"
+ );
+}
+
+
+
+
+
+enum {
+ PCIBIOS = 0x1a,
+ MEMSIZE = 0x12
+};
+
+int pcibios_vga(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp,
+ unsigned long *pesp, unsigned long *pebx, unsigned long *pedx,
+ unsigned long *pecx, unsigned long *peax, unsigned long *pflags);
+
+int handleint21_vga(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp,
+ unsigned long *pesp, unsigned long *pebx, unsigned long *pedx,
+ unsigned long *pecx, unsigned long *peax, unsigned long *pflags
+ );
+
+extern void vga_exit(void);
+
+int biosint_vga(unsigned long intnumber,
+ unsigned long gsfs, unsigned long dses,
+ unsigned long edi, unsigned long esi,
+ unsigned long ebp, unsigned long esp,
+ unsigned long ebx, unsigned long edx,
+ unsigned long ecx, unsigned long eax,
+ unsigned long cs_ip, unsigned short stackflags)
+{
+ unsigned long ip;
+ unsigned long cs;
+ unsigned long flags;
+ int ret = -1;
+
+ ip = cs_ip & 0xffff;
+ cs = cs_ip >> 16;
+ flags = stackflags;
+
+ printk_debug("biosint: INT# 0x%lx\n", intnumber);
+ printk_debug("biosint: eax 0x%lx ebx 0x%lx ecx 0x%lx edx 0x%lx\n",
+ eax, ebx, ecx, edx);
+ printk_debug("biosint: ebp 0x%lx esp 0x%lx edi 0x%lx esi 0x%lx\n",
+ ebp, esp, edi, esi);
+ printk_debug("biosint: ip 0x%x cs 0x%x flags 0x%x\n",
+ ip, cs, flags);
+
+ // cases in a good compiler are just as good as your own tables.
+ switch (intnumber) {
+ case 0 ... 15:
+ // These are not BIOS service, but the CPU-generated exceptions
+ printk_info("biosint: Oops, exception %u\n", intnumber);
+ if (esp < 0x1000) {
+ printk_debug("Stack contents: ");
+ while (esp < 0x1000) {
+ printk_debug("0x%04x ", *(unsigned short *) esp);
+ esp += 2;
+ }
+ printk_debug("\n");
+ }
+ printk_debug("biosint: Bailing out\n");
+ // "longjmp"
+ vga_exit();
+ break;
+
+ case PCIBIOS:
+ ret = pcibios_vga( &edi, &esi, &ebp, &esp,
+ &ebx, &edx, &ecx, &eax, &flags);
+ break;
+ case MEMSIZE:
+ // who cares.
+ eax = 64 * 1024;
+ ret = 0;
+ break;
+ case 0x15:
+ ret=handleint21_vga( &edi, &esi, &ebp, &esp,
+ &ebx, &edx, &ecx, &eax, &flags);
+ break;
+ default:
+ printk_info("BIOSINT: Unsupport int #0x%x\n",
+ intnumber);
+ break;
+ }
+ if (ret)
+ flags |= 1; // carry flags
+ else
+ flags &= ~1;
+ stackflags = flags;
+ return ret;
+}
+
+
+
+
+enum {
+ CHECK = 0xb001,
+ FINDDEV = 0xb102,
+ READCONFBYTE = 0xb108,
+ READCONFWORD = 0xb109,
+ READCONFDWORD = 0xb10a,
+ WRITECONFBYTE = 0xb10b,
+ WRITECONFWORD = 0xb10c,
+ WRITECONFDWORD = 0xb10d
+};
+
+// errors go in AH. Just set these up so that word assigns
+// will work. KISS.
+enum {
+ PCIBIOS_NODEV = 0x8600,
+ PCIBIOS_BADREG = 0x8700
+};
+
+int
+pcibios_vga(unsigned long *pedi, unsigned long *pesi, unsigned long *pebp,
+ unsigned long *pesp, unsigned long *pebx, unsigned long *pedx,
+ unsigned long *pecx, unsigned long *peax, unsigned long *pflags)
+{
+ unsigned long edi = *pedi;
+ unsigned long esi = *pesi;
+ unsigned long ebp = *pebp;
+ unsigned long esp = *pesp;
+ unsigned long ebx = *pebx;
+ unsigned long edx = *pedx;
+ unsigned long ecx = *pecx;
+ unsigned long eax = *peax;
+ unsigned long flags = *pflags;
+ unsigned short func = (unsigned short) eax;
+ int retval = 0;
+ unsigned short devid, vendorid, devfn;
+ short devindex; /* Use short to get rid of gabage in upper half of 32-bit register */
+ unsigned char bus;
+ device_t dev;
+
+ switch(func) {
+ case CHECK:
+ *pedx = 0x4350;
+ *pecx = 0x2049;
+ retval = 0;
+ break;
+ case FINDDEV:
+ {
+ devid = *pecx;
+ vendorid = *pedx;
+ devindex = *pesi;
+ dev = 0;
+ while ((dev = dev_find_device(vendorid, devid, dev))) {
+ if (devindex <= 0)
+ break;
+ devindex--;
+ }
+ if (dev) {
+ unsigned short busdevfn;
+ *peax = 0;
+ // busnum is an unsigned char;
+ // devfn is an int, so we mask it off.
+ busdevfn = (dev->bus->secondary << 8)
+ | (dev->path.u.pci.devfn & 0xff);
+ printk_debug("0x%x: return 0x%x\n", func, busdevfn);
+ *pebx = busdevfn;
+ retval = 0;
+ } else {
+ *peax = PCIBIOS_NODEV;
+ retval = -1;
+ }
+ }
+ break;
+ case READCONFDWORD:
+ case READCONFWORD:
+ case READCONFBYTE:
+ case WRITECONFDWORD:
+ case WRITECONFWORD:
+ case WRITECONFBYTE:
+ {
+ unsigned long dword;
+ unsigned short word;
+ unsigned char byte;
+ unsigned char reg;
+
+ devfn = *pebx & 0xff;
+ bus = *pebx >> 8;
+ reg = *pedi;
+ dev = dev_find_slot(bus, devfn);
+ if (! dev) {
+ printk_debug("0x%x: BAD DEVICE bus %d devfn 0x%x\n", func, bus, devfn);
+ // idiots. the pcibios guys assumed you'd never pass a bad bus/devfn!
+ *peax = PCIBIOS_BADREG;
+ retval = -1;
+ }
+ switch(func) {
+ case READCONFBYTE:
+ byte = pci_read_config8(dev, reg);
+ *pecx = byte;
+ break;
+ case READCONFWORD:
+ word = pci_read_config16(dev, reg);
+ *pecx = word;
+ break;
+ case READCONFDWORD:
+ dword = pci_read_config32(dev, reg);
+ *pecx = dword;
+ break;
+ case WRITECONFBYTE:
+ byte = *pecx;
+ pci_write_config8(dev, reg, byte);
+ break;
+ case WRITECONFWORD:
+ word = *pecx;
+ pci_write_config16(dev, reg, word);
+ break;
+ case WRITECONFDWORD:
+ dword = *pecx;
+ pci_write_config32(dev, reg, dword);
+ break;
+ }
+
+ if (retval)
+ retval = PCIBIOS_BADREG;
+ printk_debug("0x%x: bus %d devfn 0x%x reg 0x%x val 0x%lx\n",
+ func, bus, devfn, reg, *pecx);
+ *peax = 0;
+ retval = 0;
+ }
+ break;
+ default:
+ printk_err("UNSUPPORTED PCIBIOS FUNCTION 0x%x\n", func);
+ break;
+ }
+
+ return retval;
+}
+
+int handleint21_vga(unsigned long *edi, unsigned long *esi, unsigned long *ebp,
+ unsigned long *esp, unsigned long *ebx, unsigned long *edx,
+ unsigned long *ecx, unsigned long *eax, unsigned long *flags)
+{
+ int res=-1;
+ switch(*eax&0xffff)
+ {
+ case 0x5f19:
+ break;
+ case 0x5f18:
+ *eax=0x5f;
+ *ebx=0x545; // MCLK = 133, 32M frame buffer, 256 M main memory
+ *ecx=0x060;
+ res=0;
+ break;
+ case 0x5f00:
+ *eax = 0x8600;
+ break;
+ case 0x5f01:
+ *eax = 0x5f;
+ *ecx = (*ecx & 0xffffff00 ) | 2; // panel type = 2 = 1024 * 768
+ res = 0;
+ break;
+ case 0x5f02:
+ *eax=0x5f;
+ *ebx= (*ebx & 0xffff0000) | 2;
+ *ecx= (*ecx & 0xffff0000) | 0x401; // PAL + crt only
+ *edx= (*edx & 0xffff0000) | 0; // TV Layout - default
+ res=0;
+ break;
+ case 0x5f0f:
+ *eax=0x860f;
+ break;
+ }
+ return res;
+}
+
+
+
+
+/* ============================================================================================
+ * This function sets up bios and pci interrupt handlers for real mode
+ * This is needed when running VGA BIOS in real mode
+ * */
+
+
+void setup_realmode_idt_vga(void)
+{
+ extern unsigned char idthandle, end_idthandle;
+ extern unsigned char debughandle, end_debughandle;
+
+ int i;
+ struct realidt *idts = (struct realidt *) 0;
+ int codesize = &end_idthandle - &idthandle;
+ unsigned char *intbyte, *codeptr;
+
+ // for each int, we create a customized little handler
+ // that just pushes %ax, puts the int # in %al,
+ // then calls the common interrupt handler.
+ // this necessitated because intel didn't know much about
+ // architecture when they did the 8086 (it shows)
+ // (hmm do they know anymore even now :-)
+ // obviously you can see I don't really care about memory
+ // efficiency. If I did I would probe back through the stack
+ // and get it that way. But that's really disgusting.
+ for (i = 0; i < 256; i++) {
+ idts[i].cs = 0;
+ codeptr = (char*) 4096 + i * codesize;
+ idts[i].offset = (unsigned) codeptr;
+ memcpy(codeptr, &idthandle, codesize);
+ intbyte = codeptr + 3;
+ *intbyte = i;
+ }
+
+ // fixed entry points
+
+ // VGA BIOSes tend to hardcode f000:f065 as the previous handler of
+ // int10.
+ // calling convention here is the same as INTs, we can reuse
+ // the int entry code.
+ codeptr = (char*) 0xff065;
+ memcpy(codeptr, &idthandle, codesize);
+ intbyte = codeptr + 3;
+ *intbyte = 0x42; /* int42 is the relocated int10 */
+
+ /* debug handler - useful to set a programmable delay between instructions if the
+ TF bit is set upon call to real mode */
+ idts[1].cs = 0;
+ idts[1].offset = 16384;
+ memcpy(16384, &debughandle, &end_debughandle - &debughandle);
+
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+/* ============================================================================================
+ * initializes vga bios during device initialization
+ * */
+static void vga_init(device_t dev)
+{
+ struct drivers_pci_realmode_config *cfg = (struct drivers_pci_realmode_config *)dev->chip_info;
+
+ // code to make vga init go through the emulator - as of yet this does not workfor the epia-m
+ dev->on_mainboard=1;
+ dev->rom_address = (void *)cfg->rom_address;
+
+ pci_dev_init(dev);
+
+ // code to make vga init run in real mode - does work but against the current Linuxbios philosophy
+ printk_debug("INSTALL REAL-MODE IDT\n");
+ setup_realmode_idt();
+ printk_debug("DO THE VGA BIOS\n");
+ do_vgabios(dev);
+
+ vga_enable_console();
+
+ pci_write_config32(dev,0x30,0);
+}
+
+
+// device operations : on vga device init, call vga_init
+static struct device_operations drivers_pci_realmode_dev_ops = {
+ .init = vga_init,
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .scan_bus = 0,
+};
+
+
+/* ============================================================================================
+ * FIRST LOOP : traversing static.c list and enabling all chips found in there
+ * set given device operations descriptor to call vga_initialize
+ * */
+
+void vga_configure_pci(device_t dev){
+ printk_debug("Setting VGA callback\n");
+ dev->ops = &drivers_pci_realmode_dev_ops;
+}
+
+// PCI VGA device operations
+struct chip_operations drivers_pci_realmode_ops = {
+ .enable_dev = vga_configure_pci,
+};
Added: trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/Config.lb
===================================================================
--- trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/Config.lb (rev 0)
+++ trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/Config.lb 2006-09-13 21:25:20 UTC (rev 2411)
@@ -0,0 +1,2 @@
+config chip.h
+driver rtl8139.o
Added: trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/chip.h
===================================================================
--- trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/chip.h (rev 0)
+++ trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/chip.h 2006-09-13 21:25:20 UTC (rev 2411)
@@ -0,0 +1,11 @@
+#ifndef PCI_RTL8139_H
+#define PCI_RTL8139_H
+
+struct drivers_pci_rtl8139_config
+{
+ uint8_t nic_irq; // RTL8139 NIC
+};
+//struct chip_operations;
+extern struct chip_operations drivers_pci_rtl8139_ops;
+
+#endif
Added: trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/rtl8139.c
===================================================================
--- trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/rtl8139.c (rev 0)
+++ trunk/LinuxBIOSv2/src/mainboard/artecgroup/dbe61/rtl8139/rtl8139.c 2006-09-13 21:25:20 UTC (rev 2411)
@@ -0,0 +1,65 @@
+#include <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+#include <device/pci_ops.h>
+#undef __KERNEL__
+#include <arch/io.h>
+#include <string.h>
+#include "chip.h"
+
+void pci_level_irq(unsigned char intNum);
+
+// initialize Realtek NIC
+
+static void nic_initialize(device_t dev)
+{
+ struct drivers_pci_rtl8139_config *cfg = (struct drivers_pci_rtl8139_config*)dev->chip_info;
+ uint16_t pciCmd = 0;
+
+ printk_debug("RTL8139 initialize\n");
+
+ dev->on_mainboard=1;
+ pci_dev_init(dev);
+
+ // Set PCI IRQ descriptors.
+ // This configures nothing (no magic done in VSA, too), only descriptors are set,
+ // that are later read by operating system to find out which irq is used by dev.
+ // The real GPIO to IRQ mapping configuration takes place in cs5536.c
+ // and is configurable in Config.lb.
+
+ printk_debug("Setting NIC IRQ to %d\n", cfg->nic_irq);
+ pci_write_config8(dev, PCI_INTERRUPT_LINE, cfg->nic_irq);
+ pci_level_irq(cfg->nic_irq);
+
+ // RTL8139 must have bus mastering for some data transfers
+ pciCmd = pci_read_config16(dev, PCI_COMMAND);
+ pciCmd |= (PCI_COMMAND_MASTER | PCI_COMMAND_IO);
+ pci_write_config16(dev, PCI_COMMAND, pciCmd);
+}
+
+// device operations : on PCI device init, call nic_initialize
+
+static struct device_operations drivers_pci_rtl8139_dev_ops =
+{
+ .init = nic_initialize,
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .scan_bus = 0,
+};
+
+
+/* FIRST LOOP : traversing static.c list and enabling all chips found in there
+ * set given device operations descriptor to call nic_initialize
+ * */
+
+void nic_configure_pci(device_t dev)
+{
+ dev->ops = &drivers_pci_rtl8139_dev_ops;
+}
+
+// PCI NIC operations
+struct chip_operations drivers_pci_rtl8139_ops = {
+ .enable_dev = nic_configure_pci,
+};
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