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<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>Dear U-boot Developers<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'><o:p> </o:p></span></font></p>
<div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.0pt;
padding:0cm 0cm 1.0pt 0cm'>
<p class=MsoNormal style='border:none;padding:0cm'><font size=2 face=굴림><span
lang=EN-US style='font-size:10.0pt;font-family:Gulim'>Hello, my name is Luke Kim
from <st1:country-region w:st="on"><st1:place w:st="on">Korea</st1:place></st1:country-region>.
I</span></font><font face=Arial><span lang=EN-US style='font-family:Arial'>’</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'>ve been
looking at the u-boot code for debugging, and I think I found something in function
</span></font><font face=Arial><span lang=EN-US style='font-family:Arial'>‘</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'>console_init_r</span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>’</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'> function in file
</span></font><font face=Arial><span lang=EN-US style='font-family:Arial'>‘</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'>common/console.c</span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>’</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'>.<o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>/***********************line 505****************************/<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>/* Scan devices looking for input
and output devices */<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'> for (i = 1; <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
(i <= items) && ((inputdev == NULL) || (outputdev == NULL)); <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
i++<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
) {<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
device_t *dev = ListGetPtrToItem (devlist, i);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
inputdev = dev;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
}<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
outputdev = dev;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
}<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'> }<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'> /* Initializes
output console first */<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'> if (outputdev !=
NULL) { <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
console_setfile (stdout, outputdev);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
console_setfile (stderr, outputdev);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'> }<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'> /* Initializes
input console */<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'> if (inputdev !=
NULL) { <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>
console_setfile (stdin, inputdev);<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'> }<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'><o:p> </o:p></span></font></p>
<div style='mso-element:para-border-div;border:none;border-bottom:solid windowtext 1.0pt;
padding:0cm 0cm 1.0pt 0cm'>
<p class=MsoNormal style='border:none;padding:0cm'><font size=2 face=굴림><span
lang=EN-US style='font-size:10.0pt;font-family:Gulim'>
gd->flags |= GD_FLG_DEVINIT; /* device initialization
completed */<o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>At the last line, it sets the </span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>‘</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'>GD_FLG_DEVINIT</span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>’</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'> flag. But doesn</span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>’</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'>t it have to
check </span></font><font face=Arial><span lang=EN-US style='font-family:Arial'>‘</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'>inputdev</span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>’</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'> and </span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>‘</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'>outputdev</span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>’</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'> first to
check if it</span></font><font face=Arial><span lang=EN-US style='font-family:
Arial'>’</span></font><font face=굴림><span lang=EN-US
style='font-family:Gulim'>s NULL? I think functions such as </span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>‘</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'>fputc</span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>’</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'> will
malfunction if the </span></font><font face=Arial><span lang=EN-US
style='font-family:Arial'>‘</span></font><font face=굴림><span
lang=EN-US style='font-family:Gulim'>GD_FLG_DEVINIT</span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>’</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'> flag is set
when </span></font><font face=Arial><span lang=EN-US style='font-family:Arial'>‘</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'>stdio_devices</span></font><font
face=Arial><span lang=EN-US style='font-family:Arial'>’</span></font><font
face=굴림><span lang=EN-US style='font-family:Gulim'> are NULL.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>Best Regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=굴림><span lang=EN-US
style='font-size:10.0pt;font-family:Gulim'>Luke<o:p></o:p></span></font></p>
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