summaryrefslogtreecommitdiffstats
path: root/arch/m68k/include/asm/mcfmbus.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/include/asm/mcfmbus.h')
-rw-r--r--arch/m68k/include/asm/mcfmbus.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/mcfmbus.h b/arch/m68k/include/asm/mcfmbus.h
new file mode 100644
index 000000000000..319899c47a2c
--- /dev/null
+++ b/arch/m68k/include/asm/mcfmbus.h
@@ -0,0 +1,77 @@
+/****************************************************************************/
+
+/*
+ * mcfmbus.h -- Coldfire MBUS support defines.
+ *
+ * (C) Copyright 1999, Martin Floeer (mfloeer@axcent.de)
+ */
+
+/****************************************************************************/
+
+
+#ifndef mcfmbus_h
+#define mcfmbus_h
+
+
+#define MCFMBUS_BASE 0x280
+#define MCFMBUS_IRQ_VECTOR 0x19
+#define MCFMBUS_IRQ 0x1
+#define MCFMBUS_CLK 0x3f
+#define MCFMBUS_IRQ_LEVEL 0x07 /*IRQ Level 1*/
+#define MCFMBUS_ADDRESS 0x01
+
+
+/*
+* Define the 5307 MBUS register set addresses
+*/
+
+#define MCFMBUS_MADR 0x00
+#define MCFMBUS_MFDR 0x04
+#define MCFMBUS_MBCR 0x08
+#define MCFMBUS_MBSR 0x0C
+#define MCFMBUS_MBDR 0x10
+
+
+#define MCFMBUS_MADR_ADDR(a) (((a)&0x7F)<<0x01) /*Slave Address*/
+
+#define MCFMBUS_MFDR_MBC(a) ((a)&0x3F) /*M-Bus Clock*/
+
+/*
+* Define bit flags in Control Register
+*/
+
+#define MCFMBUS_MBCR_MEN (0x80) /* M-Bus Enable */
+#define MCFMBUS_MBCR_MIEN (0x40) /* M-Bus Interrupt Enable */
+#define MCFMBUS_MBCR_MSTA (0x20) /* Master/Slave Mode Select Bit */
+#define MCFMBUS_MBCR_MTX (0x10) /* Transmit/Rcv Mode Select Bit */
+#define MCFMBUS_MBCR_TXAK (0x08) /* Transmit Acknowledge Enable */
+#define MCFMBUS_MBCR_RSTA (0x04) /* Repeat Start */
+
+/*
+* Define bit flags in Status Register
+*/
+
+#define MCFMBUS_MBSR_MCF (0x80) /* Data Transfer Complete */
+#define MCFMBUS_MBSR_MAAS (0x40) /* Addressed as a Slave */
+#define MCFMBUS_MBSR_MBB (0x20) /* Bus Busy */
+#define MCFMBUS_MBSR_MAL (0x10) /* Arbitration Lost */
+#define MCFMBUS_MBSR_SRW (0x04) /* Slave Transmit */
+#define MCFMBUS_MBSR_MIF (0x02) /* M-Bus Interrupt */
+#define MCFMBUS_MBSR_RXAK (0x01) /* No Acknowledge Received */
+
+/*
+* Define bit flags in DATA I/O Register
+*/
+
+#define MCFMBUS_MBDR_READ (0x01) /* 1=read 0=write MBUS */
+
+#define MBUSIOCSCLOCK 1
+#define MBUSIOCGCLOCK 2
+#define MBUSIOCSADDR 3
+#define MBUSIOCGADDR 4
+#define MBUSIOCSSLADDR 5
+#define MBUSIOCGSLADDR 6
+#define MBUSIOCSSUBADDR 7
+#define MBUSIOCGSUBADDR 8
+
+#endif
OpenPOWER on IntegriCloud