summaryrefslogtreecommitdiff
path: root/include/asm-m68k/timer.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-m68k/timer.h')
-rw-r--r--include/asm-m68k/timer.h104
1 files changed, 104 insertions, 0 deletions
diff --git a/include/asm-m68k/timer.h b/include/asm-m68k/timer.h
new file mode 100644
index 0000000..d8f4e2a
--- /dev/null
+++ b/include/asm-m68k/timer.h
@@ -0,0 +1,104 @@
+/*
+ * timer.h -- ColdFire internal TIMER support defines.
+ *
+ * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/****************************************************************************/
+#ifndef timer_h
+#define timer_h
+/****************************************************************************/
+
+/****************************************************************************/
+/* Timer structure */
+/****************************************************************************/
+/* DMA Timer module registers */
+typedef struct dtimer_ctrl {
+ u16 tmr; /* 0x00 Mode register */
+ u8 txmr; /* 0x02 Extended Mode register */
+ u8 ter; /* 0x03 Event register */
+ u32 trr; /* 0x04 Reference register */
+ u32 tcr; /* 0x08 Capture register */
+ u32 tcn; /* 0x0C Counter register */
+} dtmr_t;
+
+/*Programmable Interrupt Timer */
+typedef struct pit_ctrl {
+ u16 pcsr; /* 0x00 Control and Status Register */
+ u16 pmr; /* 0x02 Modulus Register */
+ u16 pcntr; /* 0x04 Count Register */
+} pit_t;
+
+/*********************************************************************
+* DMA Timers (DTIM)
+*********************************************************************/
+/* Bit definitions and macros for DTMR */
+#define DTIM_DTMR_RST (0x0001) /* Reset */
+#define DTIM_DTMR_CLK(x) (((x)&0x0003)<<1) /* Input clock source */
+#define DTIM_DTMR_FRR (0x0008) /* Free run/restart */
+#define DTIM_DTMR_ORRI (0x0010) /* Output reference request/interrupt enable */
+#define DTIM_DTMR_OM (0x0020) /* Output Mode */
+#define DTIM_DTMR_CE(x) (((x)&0x0003)<<6) /* Capture Edge */
+#define DTIM_DTMR_PS(x) (((x)&0x00FF)<<8) /* Prescaler value */
+#define DTIM_DTMR_RST_EN (0x0001)
+#define DTIM_DTMR_RST_RST (0x0000)
+#define DTIM_DTMR_CE_ANY (0x00C0)
+#define DTIM_DTMR_CE_FALL (0x0080)
+#define DTIM_DTMR_CE_RISE (0x0040)
+#define DTIM_DTMR_CE_NONE (0x0000)
+#define DTIM_DTMR_CLK_DTIN (0x0006)
+#define DTIM_DTMR_CLK_DIV16 (0x0004)
+#define DTIM_DTMR_CLK_DIV1 (0x0002)
+#define DTIM_DTMR_CLK_STOP (0x0000)
+
+/* Bit definitions and macros for DTXMR */
+#define DTIM_DTXMR_MODE16 (0x01) /* Increment Mode */
+#define DTIM_DTXMR_DMAEN (0x80) /* DMA request */
+
+/* Bit definitions and macros for DTER */
+#define DTIM_DTER_CAP (0x01) /* Capture event */
+#define DTIM_DTER_REF (0x02) /* Output reference event */
+
+/*********************************************************************
+*
+* Programmable Interrupt Timer Modules (PIT)
+*
+*********************************************************************/
+
+/* Bit definitions and macros for PCSR */
+#define PIT_PCSR_EN (0x0001)
+#define PIT_PCSR_RLD (0x0002)
+#define PIT_PCSR_PIF (0x0004)
+#define PIT_PCSR_PIE (0x0008)
+#define PIT_PCSR_OVW (0x0010)
+#define PIT_PCSR_HALTED (0x0020)
+#define PIT_PCSR_DOZE (0x0040)
+#define PIT_PCSR_PRE(x) (((x)&0x000F)<<8)
+
+/* Bit definitions and macros for PMR */
+#define PIT_PMR_PM(x) (x)
+
+/* Bit definitions and macros for PCNTR */
+#define PIT_PCNTR_PC(x) (x)
+
+/****************************************************************************/
+#endif /* timer_h */