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authorDavid S. Miller <davem@davemloft.net>2016-10-30 19:42:58 +0300
committerDavid S. Miller <davem@davemloft.net>2016-10-30 19:42:58 +0300
commit27058af401e49d88a905df000dd26f443fcfa8ce (patch)
tree819f32113d3b8374b9fbf72e2202d4c4d4511a60 /arch/mips/mti-sead3/sead3-time.c
parent357f4aae859b5d74554b0ccbb18556f1df4166c3 (diff)
parent2a26d99b251b8625d27aed14e97fc10707a3a81f (diff)
downloadlinux-27058af401e49d88a905df000dd26f443fcfa8ce.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Mostly simple overlapping changes. For example, David Ahern's adjacency list revamp in 'net-next' conflicted with an adjacency list traversal bug fix in 'net'. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/mips/mti-sead3/sead3-time.c')
-rw-r--r--arch/mips/mti-sead3/sead3-time.c99
1 files changed, 0 insertions, 99 deletions
diff --git a/arch/mips/mti-sead3/sead3-time.c b/arch/mips/mti-sead3/sead3-time.c
deleted file mode 100644
index a120b7a5a8fe..000000000000
--- a/arch/mips/mti-sead3/sead3-time.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
- */
-#include <linux/init.h>
-#include <linux/irqchip/mips-gic.h>
-
-#include <asm/cpu.h>
-#include <asm/setup.h>
-#include <asm/time.h>
-#include <asm/irq.h>
-#include <asm/mips-boards/generic.h>
-
-static void __iomem *status_reg = (void __iomem *)0xbf000410;
-
-/*
- * Estimate CPU frequency. Sets mips_hpt_frequency as a side-effect.
- */
-static unsigned int __init estimate_cpu_frequency(void)
-{
- unsigned int prid = read_c0_prid() & (PRID_COMP_MASK | PRID_IMP_MASK);
- unsigned int tick = 0;
- unsigned int freq;
- unsigned int orig;
- unsigned long flags;
-
- local_irq_save(flags);
-
- orig = readl(status_reg) & 0x2; /* get original sample */
- /* wait for transition */
- while ((readl(status_reg) & 0x2) == orig)
- ;
- orig = orig ^ 0x2; /* flip the bit */
-
- write_c0_count(0);
-
- /* wait 1 second (the sampling clock transitions every 10ms) */
- while (tick < 100) {
- /* wait for transition */
- while ((readl(status_reg) & 0x2) == orig)
- ;
- orig = orig ^ 0x2; /* flip the bit */
- tick++;
- }
-
- freq = read_c0_count();
-
- local_irq_restore(flags);
-
- mips_hpt_frequency = freq;
-
- /* Adjust for processor */
- if ((prid != (PRID_COMP_MIPS | PRID_IMP_20KC)) &&
- (prid != (PRID_COMP_MIPS | PRID_IMP_25KF)))
- freq *= 2;
-
- freq += 5000; /* rounding */
- freq -= freq%10000;
-
- return freq ;
-}
-
-void read_persistent_clock(struct timespec *ts)
-{
- ts->tv_sec = 0;
- ts->tv_nsec = 0;
-}
-
-int get_c0_perfcount_int(void)
-{
- if (gic_present)
- return gic_get_c0_perfcount_int();
- if (cp0_perfcount_irq >= 0)
- return MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
- return -1;
-}
-EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
-
-unsigned int get_c0_compare_int(void)
-{
- if (gic_present)
- return gic_get_c0_compare_int();
- return MIPS_CPU_IRQ_BASE + cp0_compare_irq;
-}
-
-void __init plat_time_init(void)
-{
- unsigned int est_freq;
-
- est_freq = estimate_cpu_frequency();
-
- pr_debug("CPU frequency %d.%02d MHz\n", (est_freq / 1000000),
- (est_freq % 1000000) * 100 / 1000000);
-
- mips_scroll_message();
-}