Difference between revisions of "User:GNUtoo"

Revision as of 16:53, 28 February 2013

• I did the port to the M4A785T-M
• I've an x60
• I've an alix.1C

scripts to help getting rid of the vbios of the x60

Script 1: generate the io access for the coreboot driver

• follow "Case study: new laptop (not complete, sorry)" in https://docs.google.com/document/d/1g8FMob25VZYxbWri2iFB8YiSL8gwF9vKJH3HGxr0xQU/edit?pli=1
• pacman -S plan9port
• cp /opt/plan9/bin/ssam ./
• replace the following line in ./ssam:

#!/usr/local/plan9/bin/rc

by the following line:

#!/opt/plan9/bin/rc

• create the ssamfix file with:

 ,s/\[ *[0-9]+\..[0-9]+\]//g
 ,s/^ *//g
y/^[RWU]/s/^/M /g
 ,s/\nU/ ;;;UDELAY/g
 ,|uniq -c
 ,s/^ *//g
 ,s/(^[0-9]+) ([MRW])/\2 \1/g
 ,s/"/\\"/g
 ,s/^M ([0-9]+) *(\[.*)/{M, \1, "\2"},/g
 ,s/^M ([0-9]+) *(.*)/{M, \1, "\2"},/g
 ,s/:  */:/g
 ,s/...UDELAY *([0-9]+)/\1/g
 ,s/^([RW]) ([0-9]+) (.*):0x([0-9a-f]+)(.*)/{\1, \2, "", \3, 0x\4, \5},/g

• run the following commands:

. /etc/profile.d/plan9.sh
cat dmesg| ./ssam  -f ssamfix > foo.c

Script2: compare the io access that were too fast

• Replace {V,0,}, with {V,7,}, in src/mainboard/vendor/device/i915io.c
• cat /dev/ttyUSB0 > accesses.txt
• Use that script against accesses.txt to find the guilty accesses:

#!/usr/bin/env python2
import sys,re
 
def main(args):
	try:
		f = open(args[1],'ro')
	except:
		print args[0], " <file>"

	for line in f:
		if re.match("0x[0-9]*: Got .*, expect .*",line):
			line = line.replace('\r\n',).replace(", expect ",':').replace(": Got ",':')
			split = line.split(':')
			#print split
			if split[1] != split[2]:
				print line
if __name__ == '__main__':
	main(sys.argv)