diff options
| author | Mark Salter <msalter@redhat.com> | 2010-10-27 18:28:57 +0200 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2010-10-27 18:28:57 +0200 |
| commit | 730c1fad0ee22a170d2ee76a904709ee304931c0 (patch) | |
| tree | 365289c84b02c5c54d43238f2bc9b14b143cafbc /arch/mn10300/unit-asb2303 | |
| parent | MN10300: Specify an ELF HWCAP flag for MN10300 Atomic Operations Unit support (diff) | |
| download | linux-730c1fad0ee22a170d2ee76a904709ee304931c0.tar.xz linux-730c1fad0ee22a170d2ee76a904709ee304931c0.zip | |
MN10300: Generic time support
Implement generic time support for MN10300.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/mn10300/unit-asb2303')
| -rw-r--r-- | arch/mn10300/unit-asb2303/include/unit/timex.h | 48 |
1 files changed, 21 insertions, 27 deletions
diff --git a/arch/mn10300/unit-asb2303/include/unit/timex.h b/arch/mn10300/unit-asb2303/include/unit/timex.h index d1b8dafe7d7d..cc18fe7d8b90 100644 --- a/arch/mn10300/unit-asb2303/include/unit/timex.h +++ b/arch/mn10300/unit-asb2303/include/unit/timex.h @@ -1,6 +1,6 @@ /* ASB2303-specific timer specifications * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Copyright (C) 2007, 2010 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or @@ -24,10 +24,6 @@ */ #define TMJCBR_MAX 0xffff -#define TMJCBC TM01BC - -#define TMJCMD TM01MD -#define TMJCBR TM01BR #define TMJCIRQ TM1IRQ #define TMJCICR TM1ICR @@ -61,34 +57,32 @@ #define MN10300_JC_PER_HZ ((MN10300_JCCLK + HZ / 2) / HZ) #define MN10300_TSC_PER_HZ ((MN10300_TSCCLK + HZ / 2) / HZ) -static inline void startup_jiffies_counter(void) +static inline void stop_jiffies_counter(void) { - u16 md, t16; + u16 tmp; + TM01MD = JC_TIMER_CLKSRC | TM1MD_SRC_TM0CASCADE << 8; + tmp = TM01MD; +} - md = JC_TIMER_CLKSRC; - TMJCBR = MN10300_JC_PER_HZ - 1; - t16 = TMJCBR; +static inline void reload_jiffies_counter(u32 cnt) +{ + u32 tmp; - TMJCMD = - md | - TM1MD_SRC_TM0CASCADE << 8 | - TM0MD_INIT_COUNTER | - TM1MD_INIT_COUNTER << 8; + TM01BR = cnt; + tmp = TM01BR; - TMJCMD = - md | - TM1MD_SRC_TM0CASCADE << 8 | - TM0MD_COUNT_ENABLE | - TM1MD_COUNT_ENABLE << 8; + TM01MD = JC_TIMER_CLKSRC | \ + TM1MD_SRC_TM0CASCADE << 8 | \ + TM0MD_INIT_COUNTER | \ + TM1MD_INIT_COUNTER << 8; - t16 = TMJCMD; - TMJCICR |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST; - t16 = TMJCICR; -} + TM01MD = JC_TIMER_CLKSRC | \ + TM1MD_SRC_TM0CASCADE << 8 | \ + TM0MD_COUNT_ENABLE | \ + TM1MD_COUNT_ENABLE << 8; -static inline void shutdown_jiffies_counter(void) -{ + tmp = TM01MD; } #endif /* !__ASSEMBLY__ */ @@ -148,7 +142,7 @@ typedef unsigned long cycles_t; static inline cycles_t read_timestamp_counter(void) { - return (cycles_t)TMTSCBC; + return (cycles_t)~TMTSCBC; } #endif /* !__ASSEMBLY__ */ |