forked from luck/tmp_suning_uos_patched
788049e2d5
This is to make checkpatch.pl happy for the next patch. It would otherwise say -- ERROR: Do not include the paragraph about writing to the Free Software Foundation's mailing address from the sample GPL notice. The FSF has changed addresses in the past, and may do so again. Linux already includes a copy of the GPL. Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com> Cc: linux-mips@linux-mips.org Cc: macro@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9479/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/*
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* Copyright (C) 2000,2001,2004 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/clocksource.h>
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#include <asm/addrspace.h>
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#include <asm/io.h>
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#include <asm/time.h>
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#include <asm/sibyte/bcm1480_regs.h>
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#include <asm/sibyte/sb1250_regs.h>
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#include <asm/sibyte/bcm1480_int.h>
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#include <asm/sibyte/bcm1480_scd.h>
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#include <asm/sibyte/sb1250.h>
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static cycle_t bcm1480_hpt_read(struct clocksource *cs)
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{
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return (cycle_t) __raw_readq(IOADDR(A_SCD_ZBBUS_CYCLE_COUNT));
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}
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struct clocksource bcm1480_clocksource = {
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.name = "zbbus-cycles",
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.rating = 200,
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.read = bcm1480_hpt_read,
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.mask = CLOCKSOURCE_MASK(64),
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.flags = CLOCK_SOURCE_IS_CONTINUOUS,
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};
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void __init sb1480_clocksource_init(void)
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{
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struct clocksource *cs = &bcm1480_clocksource;
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unsigned int plldiv;
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unsigned long zbbus;
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plldiv = G_BCM1480_SYS_PLL_DIV(__raw_readq(IOADDR(A_SCD_SYSTEM_CFG)));
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zbbus = ((plldiv >> 1) * 50000000) + ((plldiv & 1) * 25000000);
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clocksource_register_hz(cs, zbbus);
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}
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