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[SPARC64]: Serial Console for E250 Patch

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From: Eddie C. Dost <ecd@brainaid.de>

I have the following patch for serial console over the RSC
(remote system controller) on my E250 machine. It basically adds
support for input-device=rsc and output-device=rsc from OBP, and
allows 115200,8,n,1,- serial mode setting.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eddie C. Dost 2006-01-18 14:54:31 -08:00 committed by David S. Miller
parent c07a8475dd
commit c126cf80d4
5 changed files with 48 additions and 5 deletions
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2
arch/sparc64/kernel/setup.c
View file

@ -561,6 +561,8 @@ static int __init set_preferred_console(void)
serial_console = 1;
} else if (idev == PROMDEV_ITTYB && odev == PROMDEV_OTTYB) {
serial_console = 2;
} else if (idev == PROMDEV_IRSC && odev == PROMDEV_ORSC) {
serial_console = 3;
} else {
prom_printf("Inconsistent console: "
"input %d, output %d\n",

8
arch/sparc64/prom/console.c
View file

@ -99,8 +99,12 @@ prom_query_input_device(void)
if (!strncmp(propb, "keyboard", 8))
return PROMDEV_ITTYA;
if (!strncmp (propb, "rsc", 3))
return PROMDEV_IRSC;
if (strncmp (propb, "tty", 3) || !propb[3])
return PROMDEV_I_UNK;
switch (propb[3]) {
case 'a': return PROMDEV_ITTYA;
case 'b': return PROMDEV_ITTYB;
@ -136,8 +140,12 @@ prom_query_output_device(void)
if (!strncmp(propb, "screen", 6))
return PROMDEV_OTTYA;
if (!strncmp (propb, "rsc", 3))
return PROMDEV_ORSC;
if (strncmp (propb, "tty", 3) || !propb[3])
return PROMDEV_O_UNK;
switch (propb[3]) {
case 'a': return PROMDEV_OTTYA;
case 'b': return PROMDEV_OTTYB;

34
drivers/serial/suncore.c
View file

@ -34,6 +34,7 @@ sunserial_console_termios(struct console *con)
char *mode_prop = "ttyX-mode";
char *cd_prop = "ttyX-ignore-cd";
char *dtr_prop = "ttyX-rts-dtr-off";
char *ssp_console_modes_prop = "ssp-console-modes";
int baud, bits, stop, cflag;
char parity;
int carrier = 0;
@ -43,14 +44,39 @@ sunserial_console_termios(struct console *con)
if (!serial_console)
return;
if (serial_console == 1) {
switch (serial_console) {
case PROMDEV_OTTYA:
mode_prop[3] = 'a';
cd_prop[3] = 'a';
dtr_prop[3] = 'a';
} else {
break;
case PROMDEV_OTTYB:
mode_prop[3] = 'b';
cd_prop[3] = 'b';
dtr_prop[3] = 'b';
break;
case PROMDEV_ORSC:
nd = prom_pathtoinode("rsc");
if (!nd) {
strcpy(mode, "115200,8,n,1,-");
goto no_options;
}
if (!prom_node_has_property(nd, ssp_console_modes_prop)) {
strcpy(mode, "115200,8,n,1,-");
goto no_options;
}
memset(mode, 0, sizeof(mode));
prom_getstring(nd, ssp_console_modes_prop, mode, sizeof(mode));
goto no_options;
default:
strcpy(mode, "9600,8,n,1,-");
goto no_options;
}
topnd = prom_getchild(prom_root_node);
@ -110,6 +136,10 @@ no_options:
case 9600: cflag |= B9600; break;
case 19200: cflag |= B19200; break;
case 38400: cflag |= B38400; break;
case 57600: cflag |= B57600; break;
case 115200: cflag |= B115200; break;
case 230400: cflag |= B230400; break;
case 460800: cflag |= B460800; break;
default: baud = 9600; cflag |= B9600; break;
}

7
drivers/serial/sunsab.c
View file

@ -897,9 +897,6 @@ static int sunsab_console_setup(struct console *con, char *options)
sunserial_console_termios(con);
/* Firmware console speed is limited to 150-->38400 baud so
* this hackish cflag thing is OK.
*/
switch (con->cflag & CBAUD) {
case B150: baud = 150; break;
case B300: baud = 300; break;
@ -910,6 +907,10 @@ static int sunsab_console_setup(struct console *con, char *options)
default: case B9600: baud = 9600; break;
case B19200: baud = 19200; break;
case B38400: baud = 38400; break;
case B57600: baud = 57600; break;
case B115200: baud = 115200; break;
case B230400: baud = 230400; break;
case B460800: baud = 460800; break;
};
/*

2
include/asm-sparc64/oplib.h
View file

@ -163,6 +163,7 @@ enum prom_input_device {
PROMDEV_IKBD, /* input from keyboard */
PROMDEV_ITTYA, /* input from ttya */
PROMDEV_ITTYB, /* input from ttyb */
PROMDEV_IRSC, /* input from rsc */
PROMDEV_I_UNK,
};
@ -174,6 +175,7 @@ enum prom_output_device {
PROMDEV_OSCREEN, /* to screen */
PROMDEV_OTTYA, /* to ttya */
PROMDEV_OTTYB, /* to ttyb */
PROMDEV_ORSC, /* to rsc */
PROMDEV_O_UNK,
};