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Don't probe the bq4802 variant found in Ultra 25 and 45 for now as

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this chip isn't MC146818 compatible and requires different handlers
(but which I can't test due to lack of such hardware).
This commit is contained in:
marius 2009-12-23 20:42:14 +00:00
parent c9629c4c1a
commit 043543410a
1 changed files with 9 additions and 4 deletions
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13
sys/sparc64/sparc64/rtc.c
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@ -28,10 +28,11 @@
__FBSDID("$FreeBSD$");
/*
* The `rtc' device is a MC146818 compatible clock found on the ISA
* bus and EBus. The EBus variant actually is the Real-Time Clock
* function of a National Semiconductor PC87317/PC97317 which also
* provides Advanced Power Control functionality.
* The `rtc' device is found on the ISA bus and the EBus. The ISA version
* always is a MC146818 compatible clock while the EBus variant either is the
* MC146818 compatible Real-Time Clock function of a National Semiconductor
* PC87317/PC97317 which also provides Advanced Power Control functionality
* or a Texas Instruments bq4802.
*/
#include "opt_isa.h"
@ -130,6 +131,10 @@ rtc_ebus_probe(device_t dev)
{
if (strcmp(ofw_bus_get_name(dev), "rtc") == 0) {
/* The bq4802 is not supported, yet. */
if (ofw_bus_get_compat(dev) != NULL &&
strcmp(ofw_bus_get_compat(dev), "bq4802") == 0)
return (ENXIO);
device_set_desc(dev, RTC_DESC);
return (0);
}