hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[MIPS] IP22: Fix serial console detection 

From: Kaj-Michael Lang <milang@tal.org>
    
In ip22-setup.c the checks for serial/graphics console logic does
not check if ARCS console=g but the machine is using serial console, as
it does if no keyboard is attached.
    
This patch adds a check if ConsoleOut is serial. There might also be
support for other graphics than Newport soon...
    
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2006-01-30 17:48:27 +00:00
parent c5033d7803
commit e9feeb207e
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
arch/mips/sgi-ip22/ip22-setup.c
View File

@ -56,6 +56,7 @@ extern void ip22_time_init(void) __init;
void __init plat_setup(void)
{
char *ctype;
char *cserial;
board_be_init = ip22_be_init;
ip22_time_init();
@ -81,9 +82,14 @@ void __init plat_setup(void)
/* ARCS console environment variable is set to "g?" for
* graphics console, it is set to "d" for the first serial
* line and "d2" for the second serial line.
*
* Need to check if the case is 'g' but no keyboard:
* (ConsoleIn/Out = serial)
*/
ctype = ArcGetEnvironmentVariable("console");
if (ctype && *ctype == 'd') {
cserial = ArcGetEnvironmentVariable("ConsoleOut");
if ((ctype && *ctype == 'd') || (cserial && *cserial == 's')) {
static char options[8];
char *baud = ArcGetEnvironmentVariable("dbaud");
if (baud)
@ -91,7 +97,7 @@ void __init plat_setup(void)
add_preferred_console("ttyS", *(ctype + 1) == '2' ? 1 : 0,
baud ? options : NULL);
} else if (!ctype || *ctype != 'g') {
/* Use ARC if we don't want serial ('d') or Newport ('g'). */
/* Use ARC if we don't want serial ('d') or graphics ('g'). */
prom_flags |= PROM_FLAG_USE_AS_CONSOLE;
add_preferred_console("arc", 0, NULL);
}