Ingo Weinhold
e55e1a0e66
device in the Open Firmware implementation of boot loader and pass its path to the kernel, where it's opened and used for getting/setting the real time. The expensive atomic_*64() on PPC 32-bit make things a bit more complicated. Moreover, missing 64 bit multiplication and division instructions won't really allow system_time() to be anywhere near as fast as on x86. :-/ git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15837 a95241bf-73f2-0310-859d-f6bbb57e9c96
31 lines
664 B
C++
31 lines
664 B
C++
/*
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* Copyright 2006, Ingo Weinhold <[email protected]>.
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* All rights reserved. Distributed under the terms of the MIT License.
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*/
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#include "real_time_clock.h"
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#include <stdio.h>
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#include <boot/kernel_args.h>
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#include <boot/stage2.h>
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#include <platform/openfirmware/openfirmware.h>
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#include "devices.h"
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status_t
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init_real_time_clock(void)
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{
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// find RTC
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int rtcCookie = 0;
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if (platform_get_next_device(&rtcCookie, 0, "rtc",
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gKernelArgs.platform_args.rtc_path,
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sizeof(gKernelArgs.platform_args.rtc_path)) != B_OK) {
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printf("init_real_time_clock(): Found no RTC device!");
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return B_ERROR;
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}
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return B_OK;
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}
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