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also look for "FJSV,su" as found on PRIMEPOWER machines.

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while here, copy some code from openbsd that should allow this to work
on the Fujitsu SPARC Enterprise Mx000 systems.
This commit is contained in:
mrg 2011-06-02 00:16:22 +00:00
parent 705a46009a
commit 0d643fd11f
1 changed files with 46 additions and 6 deletions
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52
sys/arch/sparc64/dev/com_ebus.c
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@ -1,4 +1,4 @@
/* $NetBSD: com_ebus.c,v 1.31 2011/03/15 11:22:18 mrg Exp $ */
/* $NetBSD: com_ebus.c,v 1.32 2011/06/02 00:16:22 mrg Exp $ */
/*
* Copyright (c) 1999, 2000 Matthew R. Green
@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: com_ebus.c,v 1.31 2011/03/15 11:22:18 mrg Exp $");
__KERNEL_RCSID(0, "$NetBSD: com_ebus.c,v 1.32 2011/06/02 00:16:22 mrg Exp $");
#include <sys/types.h>
#include <sys/param.h>
@ -84,7 +84,8 @@ com_ebus_match(device_t parent, cfdata_t match, void *aux)
compat = prom_getpropstring(ea->ea_node, "compatible");
if (strcmp(compat, "su16550") == 0 ||
strcmp(compat, "su16552") == 0 ||
strcmp(compat, "su") == 0) {
strcmp(compat, "su") == 0 ||
strcmp(compat, "FJSV,su") == 0) {
return (1);
}
}
@ -109,6 +110,8 @@ com_ebus_attach(device_t parent, device_t self, void *aux)
bus_space_handle_t ioh;
bus_space_tag_t iot;
bus_addr_t iobase;
int node, port;
char buf[32];
sc->sc_dev = self;
iot = ea->ea_bustag;
@ -145,9 +148,34 @@ com_ebus_attach(device_t parent, device_t self, void *aux)
kma.kmta_consdev = NULL;
/* Figure out if we're the console. */
com_is_input = (ea->ea_node == prom_instance_to_package(prom_stdin()));
com_is_output = (ea->ea_node == prom_instance_to_package(prom_stdout()));
/*
* Figure out if we're the console.
*
* The Fujitsu SPARC Enterprise M4000/M5000/M8000/M9000 has a
* serial port on each I/O board and a pseudo console that is
* redirected to one of these serial ports. The board number
* of the serial port in question is encoded in the "tty-port#"
* property of the pseudo console, so we figure out what our
* board number is by walking up the device tree, and check
* for a match.
*/
node = prom_instance_to_package(prom_stdin());
com_is_input = (ea->ea_node == node);
if (OF_getprop(node, "name", buf, sizeof(buf)) > 0 &&
strcmp(buf, "pseudo-console") == 0) {
port = prom_getpropint(node, "tty-port#", -1);
node = OF_parent(OF_parent(ea->ea_node));
com_is_input = (prom_getpropint(node, "board#", -2) == port);
}
node = prom_instance_to_package(prom_stdout());
com_is_output = (ea->ea_node == node);
if (OF_getprop(node, "name", buf, sizeof(buf)) > 0 &&
strcmp(buf, "pseudo-console") == 0) {
port = prom_getpropint(node, "tty-port#", -1);
node = OF_parent(OF_parent(ea->ea_node));
com_is_output = (prom_getpropint(node, "board#", -2) == port);
}
if (com_is_input || com_is_output) {
struct consdev *cn_orig;
@ -178,6 +206,18 @@ com_ebus_attach(device_t parent, device_t self, void *aux)
cn_tab = cn_orig;
kma.kmta_consdev = cn_tab;
}
/*
* Apparently shoving too much data down the TX FIFO on the
* Fujitsu SPARC Enterprise M4000/M5000 causes a hardware
* fault. Avoid this issue by setting the FIFO depth to 1.
* This will effectively disable the TX FIFO, but will still
* enable the RX FIFO, which is what we really care about.
*/
if (OF_getprop(ea->ea_node, "compatible", buf, sizeof(buf)) > 0 &&
strcmp(buf, "FJSV,su") == 0)
sc->sc_fifolen = 1;
/* Now attach the driver */
com_attach_subr(sc);