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authorGreg Ungerer <gerg@snapgear.com>2005-11-07 14:09:50 +1000
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-07 08:00:46 -0800
commitf15bf19b49854c984c27209bd4ade31a9c84f4de (patch)
treef59e5b4fa5659749110800239e1f73cb9b8f35d2 /arch
parent88a605b02449852213a46f8a8ab760cfc5b9b7c8 (diff)
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[PATCH] m68knommu: modify the ColdFire PIT timer for new 5208
Modified common ColdFire PIT timer code to support the 5208 as well. It uses a different set of mask and interrupt bits than other ColdFire processors. The defines for these bits have been moved in header files and set appropriately for the different processor varients. Patch originally from Matt Waddel. Signed-off-by: Greg Ungerer <gerg@uclinux.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/m68knommu/platform/5307/pit.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/m68knommu/platform/5307/pit.c b/arch/m68knommu/platform/5307/pit.c
index a9b2c2e..323f267 100644
--- a/arch/m68knommu/platform/5307/pit.c
+++ b/arch/m68knommu/platform/5307/pit.c
@@ -3,7 +3,7 @@
/*
* pit.c -- Motorola ColdFire PIT timer. Currently this type of
* hardware timer only exists in the Motorola ColdFire
- * 5270/5271 and 5282 CPUs.
+ * 5270/5271, 5282 and other CPUs.
*
* Copyright (C) 1999-2004, Greg Ungerer (gerg@snapgear.com)
* Copyright (C) 2001-2004, SnapGear Inc. (www.snapgear.com)
@@ -47,10 +47,10 @@ void coldfire_pit_init(irqreturn_t (*handler)(int, void *, struct pt_regs *))
icrp = (volatile unsigned char *) (MCF_IPSBAR + MCFICM_INTC0 +
MCFINTC_ICR0 + MCFINT_PIT1);
- *icrp = 0x2b; /* PIT1 with level 5, priority 3 */
+ *icrp = ICR_INTRCONF;
- imrp = (volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IMRH);
- *imrp &= ~(1 << (MCFINT_PIT1 - 32));
+ imrp = (volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFPIT_IMR);
+ *imrp &= ~MCFPIT_IMR_IBIT;
/* Set up PIT timer 1 as poll clock */
tp = (volatile struct mcfpit *) (MCF_IPSBAR + MCFPIT_BASE1);
@@ -70,7 +70,7 @@ unsigned long coldfire_pit_offset(void)
unsigned long pmr, pcntr, offset;
tp = (volatile struct mcfpit *) (MCF_IPSBAR + MCFPIT_BASE1);
- ipr = (volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFINTC_IPRH);
+ ipr = (volatile unsigned long *) (MCF_IPSBAR + MCFICM_INTC0 + MCFPIT_IMR);
pmr = *(&tp->pmr);
pcntr = *(&tp->pcntr);
@@ -80,7 +80,7 @@ unsigned long coldfire_pit_offset(void)
* timer interupt is pending, then add on a ticks worth of time.
*/
offset = ((pmr - pcntr) * (1000000 / HZ)) / pmr;
- if ((offset < (1000000 / HZ / 2)) && (*ipr & (1 << (MCFINT_PIT1 - 32))))
+ if ((offset < (1000000 / HZ / 2)) && (*ipr & MCFPIT_IMR_IBIT))
offset += 1000000 / HZ;
return offset;
}