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authorMark Salter <msalter@redhat.com>2010-10-27 17:28:57 +0100
committerDavid Howells <dhowells@redhat.com>2010-10-27 17:28:57 +0100
commit730c1fad0ee22a170d2ee76a904709ee304931c0 (patch)
tree365289c84b02c5c54d43238f2bc9b14b143cafbc /arch/mn10300/unit-asb2303
parent2502c64eeb125c5d57e3e7dc38320b500d69e088 (diff)
downloadop-kernel-dev-730c1fad0ee22a170d2ee76a904709ee304931c0.zip
op-kernel-dev-730c1fad0ee22a170d2ee76a904709ee304931c0.tar.gz
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.h48
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 d1b8daf..cc18fe7 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__ */
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