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Implement uart_cpu_eqres() and uart_cpu_getdev(). This allows

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FreeBSD to use a serial console, as per the OFW settings.
This commit is contained in:
Marcel Moolenaar 2006-07-26 17:17:23 +00:00
parent 949313b738
commit e997db5d3a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=160715
1 changed files with 56 additions and 3 deletions
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59
sys/dev/uart/uart_cpu_powerpc.c
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@ -29,10 +29,12 @@ __FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <dev/ofw/openfirm.h>
#include <machine/ofw_machdep.h>
#include <dev/uart/uart.h>
#include <dev/uart/uart_cpu.h>
@ -43,12 +45,63 @@ int
uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2)
{
return (0);
return ((b1->bsh == b2->bsh) ? 1 : 0);
}
int
uart_cpu_getdev(int devtype, struct uart_devinfo *di)
{
char buf[64];
phandle_t input, opts;
int error;
return (ENXIO);
if ((opts = OF_finddevice("/options")) == -1)
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);
break;
case UART_DEV_DBGPORT:
if (!getenv_string("hw.uart.dbgport", buf, sizeof(buf)))
return (ENXIO);
input = OF_finddevice(buf);
if (input == -1)
return (ENXIO);
break;
default:
return (EINVAL);
}
if (OF_getprop(input, "device_type", buf, sizeof(buf)) == -1)
return (ENXIO);
if (strcmp(buf, "serial") != 0)
return (ENXIO);
if (OF_getprop(input, "name", buf, sizeof(buf)) == -1)
return (ENXIO);
if (strcmp(buf, "ch-a"))
return (ENXIO);
error = OF_decode_addr(input, 0, &di->bas.bst, &di->bas.bsh);
if (error)
return (error);
di->ops = uart_z8530_ops;
di->bas.rclk = 230400;
di->bas.chan = 1;
di->bas.regshft = 4;
di->baudrate = 0;
di->databits = 8;
di->stopbits = 1;
di->parity = UART_PARITY_NONE;
return (0);
}