mirror of
https://github.com/fail0verflow/switch-coreboot.git
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ipl for the cua
config.DoC sample
This commit is contained in:
Ronald G. Minnich
parent
8eb557da83
commit
359a95ff2b
2 changed files with 549 additions and 0 deletions
38
src/mainboard/asus/cua/config.DoC
Normal file
38
src/mainboard/asus/cua/config.DoC
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@ -0,0 +1,38 @@
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# Sample config file for ACER M1631 CHIPSET ON A ASUS
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# with DoC Millennium (as root)
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# This will make a target directory of ./asus-cua
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target asus-cua
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# ASUS CUA main board
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mainboard asus/cua
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# ****************** NEED CORRECT DOC IPL
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# use DOC MIL
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option USE_DOC_MIL
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docipl northbridge/acer/m1631/ipl.S
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# Enable Serial Console for debugging
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option SERIAL_CONSOLE
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# Enable MicroCode update and L2 Cache init for PII and PIII
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#option UPDATE_MICROCODE
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#option CONFIGURE_L2_CACHE
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# Use the internal VGA frame buffer device
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#option HAVE_FRAMEBUFFER
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# I want that floppy ...
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option MUST_ENABLE_FLOPPY
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# *****************MODIFIED BY BHARATH********************
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# Path to your kernel (vmlinux)
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linux /usr/src/linux-2.4.7
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# Kernel command line parameters
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#commandline root=/dev/hda2 console=ttyS0,115200 console=tty0 single
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# *******************MODIFIED BY BHARATH (root=/dev/hda5 and floppy=nodma)****************
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commandline root=/dev/hda5 console=ttyS0,115200 floppy=nodma console=tty0 video=sisfb:1024x768-8@60
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511
src/mainboard/asus/cua/ipl.S
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511
src/mainboard/asus/cua/ipl.S
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@ -0,0 +1,511 @@
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/*
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* ipl.S: Initial Program Loader (IPL) for M1535D and M-System DoC Millennium
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*
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* MODIFIED BY BHARATH ON 09/12/01
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*
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* ORIGINAL Reference:
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* 1. SiS 630 Specification
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* 2. System Management Bus Specification Rev 1.1
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* 3. PC SDRAM Serial Presence Detect (SPD) Specification Rev 1.2B
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* 4. Booting From the DiskOnChip Millennium, M-Systems Application Note Ap-DOC-044
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* APR-2000, 93-SR-001-44-7L REV. 1.0
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*
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* $Id$
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*/
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#include "ipl.h"
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/*
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.org 0xfe000
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*/
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.code16
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ali_start:
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/* Must set regs on North Bridge (device 0) */
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movw $0x00f9, %cx /*f9h*/
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movb $0x08, %al
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CALL_SP(SET_PCI)
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movb $0x8c,%al /* 8eh */
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movb $0xf8,%dl
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outl %eax,%dx
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movb $0xfe,%dl
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inb %dx,%al
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orb $0x08,%al
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# movb $0xeb, %al
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outb %al,%dx
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movb $0x82, %cl /* 82h */
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movb $0x10, %al
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CALL_SP(SET_PCI)
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/* CHANGED TO 0x88e3 BY BHARATH FOR M7101 */
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movw $0x88e3, %cx /* M7101 e3h*/
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movb $0x50, %al
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CALL_SP(SET_PCI)
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/* COMMENTED OUT BY BHARATH - NOT NEEDED FOR M1535D */
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/*
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movb $0x04, %cl
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movb $0x01, %al
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CALL_SP(SET_PCI)
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movw $0x88e0, %ax
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movb $0xf8, %dl
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outl %eax, %dx
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movb $0xff, %dl
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inb %dx, %al
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outb %al, $0x80 cheng 0615 test
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movb $0x66, %al
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outb %al, $0x80
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*/
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/*
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movb $0xe2, %cl
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movb $0x00, %al
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CALL_SP(SET_PCI)
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*/
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/* UNCOMMENTED BY BHARATH - NEEDED FOR M1535D */
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movb $0xd1, %cl /*1535d d1 reg and 1543c have not same*/
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movb $0x46, %al
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CALL_SP(SET_PCI)
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/* CHANGED TO f0 BY BHARATH */
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movb $0xf0, %cl /*1535d f0 reg 1543c e0 reg*/
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movb $0x01, %al
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CALL_SP(SET_PCI)
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/* COMMENTED OUT BY BHARATH - NOT NEEDED FOR M1535D */
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/*
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movb $0xe2, %cl
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movb $0x20, %al
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CALL_SP(SET_PCI) */
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#if 0
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/* UNCOMMENTED BY BHARATH - NEEDED FOR M1535D */
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/* but we don't have much room. */
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movb $0x80, %cl
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movb $0x3e, %al
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CALL_SP(SET_PCI)
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#endif
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/* OK, we need to disable some GPOs (!@#$?)
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Ron also figured the input in AL should be 0x40*/
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movb $0xb8,%cl
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movb $0x40,%al
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CALL_SP(SET_PCI)
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movw $0x3847, %cx
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movb $0x40, %al
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CALL_SP(SET_PCI)
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/*--------------------------sizing loop start---------------------*/
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movw $0xa16e, %si #cheng0607 as table before
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sizing_loop_start:
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cli # Disables the maskable
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# hardware interrupts.
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movw %cs, %ax # makes data segment ==
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movw %ax, %ds # code segment
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movw %si, %bx
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movb $0x02, %bl
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CALL_SP(I2C_read_byte)
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cmpb $0x04, %al /*exist dram ?*/
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jnz sizing_end
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addb $0x02, %bl
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CALL_SP(I2C_read_byte)
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movb %al, %ah /*ah=column address bits*/
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subb $0x08, %ah /*convert to data sheet value*/
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addb $0x01, %bl
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CALL_SP(I2C_read_byte)
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shlb $0x04, %ah /*ah[7,6,5,4]=ca type*/
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movb %al, %bl /*bl=al=number of row*/
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movb $0x0c, %al
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cmpb $0x01, %bl
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jz row_ok /*1 row*/
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movb $0x0f, %al
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# cmpb $0x02, %bl
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# jz row_ok /*2 rows*/
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# jmp sizing_end /*no rows*/
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row_ok:
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orb %al, %ah /*ah=[ca type][number of rows]*/
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/*get size*/
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movb $0x01f, %bl
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CALL_SP(I2C_read_byte) /*get row size*/
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clc #convert spd value to data sheet value
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movb $0x00, %cl #chang on 0607 by cheng
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aa:
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shrb $0x01, %al
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jc size_ok
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inc %cl
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jmp aa
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size_ok:
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movb %cl, %al /*bit: 15...12 11...........8 7......0 */
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/*ax= [ca type][number of rows][row size]*/
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movw %ax, %di /*di= [ca type][number of rows][row size]*/
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movw %si, %cx
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xorb %ch, %ch /*cheng0606 movw $M1631, %cx */
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/*;as up mov cl, cs:[Dis_Row_Tbl][si] /cl=6eh/72h/76h */
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movw %di, %bx
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andb $0x01, %bh
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shlb $0x03, %bh
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orb %bh, %bl /*bl= bit23-20*/
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movb %bl, %al /*al= bit23-20*/
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/*bit: 15.........12 11....4 3....0 */
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rorw $0x0c, %di /*di= [number of rows][row size][ca type]*/
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movw %di, %bx
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andb $0x0f, %bl /*bl=ca type*/
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shlb $0x04, %al
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orb %bl, %al /*al=reg:6eh/72h/76h value*/
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CALL_SP(SET_PCI)
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inc %cl
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/*;;; ROM_CALL Get_PCI */
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/*;;; and al, 11100000b */
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/*;;; or al, 00010000b /set sdram */
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movb $0xf0, %al /*set bit[31-27]*/
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shrb $5, %bh
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orb %bh, %al
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# outb %al, $0x80 /*-----cheng 0618-----*/
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CALL_SP(SET_PCI)
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jmp chk_loop
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/*if error, go here*/
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sizing_end:
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movw %si, %cx
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#cheng0606 movw $M1631, %cx
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xorb %ch, %ch
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Dis_Next_Row_Data:
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/*;as up mov cl, cs:[Dis_Row_Tbl][si]*/
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#cheng 0615 movb $0x00, %al
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#cheng 0615 CALL_SP(SET_PCI)
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addb $0x01, %cl
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# movb %cl, %al /*cheng 0621*/
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# outb %al, $0x80 /*cheng 0621*/
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movb $0xe0, %al
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CALL_SP(SET_PCI)
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chk_loop:
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# movw %si, %ax
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# outb %al, $0x80 #cheng0608 for test
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addw $0x0204, %si
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cmpw $0xa77a, %si
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jnz sizing_loop_start
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# movw %si, %ax
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# outb %al, $0x80
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movb $0x7e, %cl
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movb $0x2f, %al /*cheng 0628 ago is 28h*/
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CALL_SP(SET_PCI) /*cheng 0617 refresh on */
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jmp ipl_start
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# nop
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/*cheng0605 start------------------------------------------------*/
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SET_PCI:
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# movb $0x22, %al
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# outb %al, $0x80 #cheng0611
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rorl $16, %ecx
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movw %ax, %cx
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rorl $16, %ecx
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movl $0x80000000, %eax
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movw %cx, %ax
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andb $0x0fc, %al
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movw $0x0cf8, %dx /*index is 0cf8h*/
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outl %eax, %dx
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addb $4, %dl /*start from 0cfch*/
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movb %cl, %al
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andb $0x03, %al
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addb %al, %dl /*byte index to read*/
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rorl $16, %ecx
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movw %cx, %ax
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rorl $16, %ecx
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outb %al, %dx
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RET_SP
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/*
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* ipl.S: Initial Program Loader (IPL) for SiS 630 and M-System DoC Millennium
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*
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*
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* Copyright 2000 Silicon Integrated Systems Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*
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* Reference:
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* 1. SiS 630 Specification
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* 2. System Management Bus Specification Rev 1.1
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* 3. PC SDRAM Serial Presence Detect (SPD) Specification Rev 1.2B
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* 4. Booting From the DiskOnChip Millennium, M-Systems Application Note Ap-DOC-044
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* APR-2000, 93-SR-001-44-7L REV. 1.0
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*
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* $Id$
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*/
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/*
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.code32
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*/
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ipl_start:
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# movb $0x55, %al
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# outb %al, $0x80 /* cheng 0617 test */
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/*#if 0*/
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/* stack and es already set. */
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/* O.K. we have DRAM now, so set up STACK for CALL/RET */
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movw $DOC_STACK_SEG, %ax
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movw %ax, %ss
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movw $SPL_RAM_SEG, %ax
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movw %ax, %es
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/* movl $DOC_STACK_SEG, %esp # set %sp */
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/*#endif*/
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/* NOTE: in ollie's original code, %ds was at 0xfe00, i.e.
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* 0xfe000, i.e. base of DoC. We have to adjust for that when
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* we set %edi and %si
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*/
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# movl $DOC_STACK, %esp # set %sp
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# movl $SPL_RAM, %edx # start of RAM
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# xorl %ecx, %ecx # clear %ecx
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xorw %sp, %sp /*cheng 0619*/
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xorw %dx, %dx /*cheng 0619*/
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movw $0x800, %si # point %si to CDSN Data area
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movw $0x1000, %di # point %di to CDSN Control area
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movw $DOC_SPL_START_BLK, %bp # start page of LinuxBIOS
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movb $0x84, %al # Reset DOC Millennium
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call doc_reset
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movb $0x85, %al # Turn into Normal Mode
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call doc_reset
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read_next_page:
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movw $0x1000, %di # point %di to CDSN Control area
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flash_command:
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movb $0x03, 0x04(%di) # start command cycle
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movb $0x00, (%si) # issue flash command Read00
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call doc_cycle_end
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movw %bp, %bx # %bp is current page number
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flash_address:
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shll $0x08, %ebx
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movb $0x03, %cl # this one is DANGEROUS but I am
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# sure the upper 3 bytes == 0x00
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movb $0x05, 0x04(%di) # start address cycle
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0:
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movb %bl, (%si) # write address to CDSNIO
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shrw $0x08, %bx # shift next address byte
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loop 0b
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call doc_cycle_end
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wait_for_flash_ready:
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/* delay by reding NOP register before polling the FLASH READY bit,
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this is inlined to save a call/ret pair */
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doc_delay:
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movb $0x04, %cl # this one is DANGEROUS but I am
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# sure the upper 3 bytes == 0x00
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# movb $0x33, %al
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# outb %al, $0x80 /*0618 test*/
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0:
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movb 0x20(%di), %al # read DOC NOP retisger
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loop 0b # four times
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# outb %al, $0x80 /*0618 test*/
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testb $0x80, 0x04(%di) # is flash ready ?
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jz wait_for_flash_ready
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# movb $0x33, %al
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# outb %al, $0x80 /*---cheng 0618 test---*/
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movb 0x1d(%di), %al # init read pipeline
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movw $0x100, %cx # 1 page = 512 bytes
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movw $0x800, %si # point %si to CDSN Data area
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movw %dx, %di # restore saved current destination
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rep
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movsw
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movw %di, %dx # save current destination
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incw %bp # increse current page number
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cmpw $128, %bp # moved 63 KB ??
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jl read_next_page # no, read next page
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sis630ipl_end:
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# jmp to 8000:0000, where SPL
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# (LinuxBIOS) starts in RAM
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# ljmp $0x10,$0x8000
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# movb $0x66, %al
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# outb %al, $0x80 /*0618 test*/
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jmp spl_vector
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/* ------------------------------------------------------------------------------------------*/
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doc_reset:
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/* Input: AL = value write to DOC_CONTROL register
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Clobberd: CX */
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movb %al, 0x02(%di) # write DoC Control retister
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movb %al, 0x02(%di) # twice
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ret # End of doc_reset
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doc_cycle_end:
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movb $0x00, 0x1e(%di) # flush write pepeline
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movb $0x01, 0x04(%di) # end command cycle
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ret
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/*---------------------------------------table--------------------*/
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/* dimm 0 1 2 */
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/*
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dimm_tbl:
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.byte 0x0a1, 0x0a3, 0x0a5
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size_tbl:
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.byte 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80
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.byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
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Dis_Row_Tbl:
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.byte 0x06e, 0x072, 0x076
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*/
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/*
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;=============================================
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; =
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; Read SPD value for Dram sizing = CHENG 3.7.2001
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; =
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; INPUT bl := offset to read =
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; bh := eeprom ID =
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; =
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; OUTPUT al := data =
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; carry clear = read successful =
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; carry set = read failed =
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; =
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; CHANGES REGISTERS: cx, dx, al =
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; =
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;=============================================
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*/
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I2C_read_byte:
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movw $0x5000, %dx
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movb $0x0ff, %al
|
||||
outb %al, %dx #clear status
|
||||
# movb $0x77, %al /*cheng 0615 test */
|
||||
# outb %al, $0x80
|
||||
|
||||
1:
|
||||
inb %dx, %al
|
||||
# nop
|
||||
# jmp c0
|
||||
#c0:
|
||||
testb $0x04, %al
|
||||
jz 1b #wait till idle
|
||||
|
||||
movb $0x03, %dl
|
||||
movb %bh, %al
|
||||
outb %al, %dx #spd address
|
||||
# nop
|
||||
# jmp c1
|
||||
#c1:
|
||||
movb $0x01, %dl
|
||||
movb $0x20, %al
|
||||
outb %al, %dx #set read/write byte command
|
||||
# nop
|
||||
# jmp c2
|
||||
#c2:
|
||||
movb $0x07, %dl
|
||||
movb %bl, %al
|
||||
outb %al, %dx #set the offset of register
|
||||
# nop
|
||||
# jmp c3
|
||||
#c3:
|
||||
movb $0x02, %dl
|
||||
movb $0x0ff, %al
|
||||
outb %al, %dx #start command
|
||||
# nop
|
||||
# jmp c4
|
||||
#c4:
|
||||
/*;wait for command complete*/
|
||||
movw $0x100, %cx #loop count
|
||||
movb $0x00, %dl
|
||||
chk_status_final:
|
||||
inb %dx, %al
|
||||
# nop
|
||||
# jmp c5
|
||||
#c5:
|
||||
testb $0x10, %al
|
||||
jnz send_ok
|
||||
loop chk_status_final
|
||||
/*;read failed*/
|
||||
#cheng0606 stc
|
||||
jmp spd_end
|
||||
send_ok:
|
||||
movb $0x04, %dl
|
||||
inb %dx, %al
|
||||
# nop
|
||||
# jmp c6
|
||||
#c6:
|
||||
#cheng0606 clc
|
||||
spd_end:
|
||||
RET_SP
|
||||
|
||||
/*cheng0605 end-----------------------------------------------*/
|
||||
|
||||
.org 0x01f0
|
||||
|
||||
reset_vector:
|
||||
.byte 0xea # jmp to fe00:0000, where IPL
|
||||
.word 0x0000, DOC_WIN_SEG # starts in DoC
|
||||
#.code32
|
||||
spl_vector:
|
||||
# movb $0x55, %al
|
||||
# outb %al, $0x80 /* cheng 0617 test */
|
||||
|
||||
.byte 0xea
|
||||
.word 0x0000, 0x8000
|
||||
|
||||
# invd
|
||||
# jmpl $0x10, $0x80000
|
||||
# jmpl $0x80000
|
||||
# put this here to buy some room!
|
||||
pad: .byte 0,0,0,0,0,0
|
||||
Loading…
Add table
Reference in a new issue