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Fix serial console on Apple Xserve G5 by falling back to input-device-1

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if input-device is unavailable. The Xserve G5 defaults to using
screen/keyboard for output-device/input-device even if these are not
installed, and then falls back to serial ports at boot time.

Reviewed by:	marcel
Hardware from:	grehan
Approved by:	re (kib)
This commit is contained in:
Nathan Whitehorn 2009-07-23 12:51:27 +00:00
parent aa14b5ab89
commit ccf6415e82
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=195831
1 changed files with 32 additions and 9 deletions
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41
sys/dev/uart/uart_cpu_powerpc.c
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@ -78,6 +78,27 @@ uart_cpu_getdev(int devtype, struct uart_devinfo *di)
return (uart_getenv(devtype, di, class));
}
#else
static int
ofw_get_uart_console(phandle_t opts, phandle_t *result, const char *inputdev,
const char *outputdev)
{
char buf[64];
phandle_t input;
if (OF_getprop(opts, inputdev, buf, sizeof(buf)) == -1)
return (ENXIO);
input = OF_finddevice(buf);
if (input == -1)
return (ENXIO);
if (OF_getprop(opts, outputdev, buf, sizeof(buf)) == -1)
return (ENXIO);
if (OF_finddevice(buf) != input)
return (ENXIO);
*result = input;
return (0);
}
int
uart_cpu_getdev(int devtype, struct uart_devinfo *di)
{
@ -94,15 +115,17 @@ uart_cpu_getdev(int devtype, struct uart_devinfo *di)
return (ENXIO);
switch (devtype) {
case UART_DEV_CONSOLE:
if (OF_getprop(opts, "input-device", buf, sizeof(buf)) == -1)
return (ENXIO);
input = OF_finddevice(buf);
if (input == -1)
return (ENXIO);
if (OF_getprop(opts, "output-device", buf, sizeof(buf)) == -1)
return (ENXIO);
if (OF_finddevice(buf) != input)
return (ENXIO);
if (ofw_get_uart_console(opts, &input, "input-device",
"output-device")) {
/*
* At least some G5 Xserves require that we
* probe input-device-1 as well
*/
if (ofw_get_uart_console(opts, &input, "input-device-1",
"output-device-1"))
return (ENXIO);
}
break;
case UART_DEV_DBGPORT:
if (!getenv_string("hw.uart.dbgport", buf, sizeof(buf)))