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-rw-r--r--arch/m68k/include/asm/anchor.h112
1 files changed, 112 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/anchor.h b/arch/m68k/include/asm/anchor.h
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+++ b/arch/m68k/include/asm/anchor.h
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+/****************************************************************************/
+
+/*
+ * anchor.h -- Anchor CO-MEM Lite PCI host bridge part.
+ *
+ * (C) Copyright 2000, Moreton Bay (www.moreton.com.au)
+ */
+
+/****************************************************************************/
+#ifndef anchor_h
+#define anchor_h
+/****************************************************************************/
+
+/*
+ * Define basic addressing info.
+ */
+#if defined(CONFIG_M5407C3)
+#define COMEM_BASE 0xFFFF0000 /* Base of CO-MEM address space */
+#define COMEM_IRQ 25 /* IRQ of anchor part */
+#else
+#define COMEM_BASE 0x80000000 /* Base of CO-MEM address space */
+#define COMEM_IRQ 25 /* IRQ of anchor part */
+#endif
+
+/****************************************************************************/
+
+/*
+ * 4-byte registers of CO-MEM, so adjust register addresses for
+ * easy access. Handy macro for word access too.
+ */
+#define LREG(a) ((a) >> 2)
+#define WREG(a) ((a) >> 1)
+
+
+/*
+ * Define base addresses within CO-MEM Lite register address space.
+ */
+#define COMEM_I2O 0x0000 /* I2O registers */
+#define COMEM_OPREGS 0x0400 /* Operation registers */
+#define COMEM_PCIBUS 0x2000 /* Direct access to PCI bus */
+#define COMEM_SHMEM 0x4000 /* Shared memory region */
+
+#define COMEM_SHMEMSIZE 0x4000 /* Size of shared memory */
+
+
+/*
+ * Define CO-MEM Registers.
+ */
+#define COMEM_I2OHISR 0x0030 /* I2O host interrupt status */
+#define COMEM_I2OHIMR 0x0034 /* I2O host interrupt mask */
+#define COMEM_I2OLISR 0x0038 /* I2O local interrupt status */
+#define COMEM_I2OLIMR 0x003c /* I2O local interrupt mask */
+#define COMEM_IBFPFIFO 0x0040 /* I2O inbound free/post FIFO */
+#define COMEM_OBPFFIFO 0x0044 /* I2O outbound post/free FIFO */
+#define COMEM_IBPFFIFO 0x0048 /* I2O inbound post/free FIFO */
+#define COMEM_OBFPFIFO 0x004c /* I2O outbound free/post FIFO */
+
+#define COMEM_DAHBASE 0x0460 /* Direct access base address */
+
+#define COMEM_NVCMD 0x04a0 /* I2C serial command */
+#define COMEM_NVREAD 0x04a4 /* I2C serial read */
+#define COMEM_NVSTAT 0x04a8 /* I2C status */
+
+#define COMEM_DMALBASE 0x04b0 /* DMA local base address */
+#define COMEM_DMAHBASE 0x04b4 /* DMA host base address */
+#define COMEM_DMASIZE 0x04b8 /* DMA size */
+#define COMEM_DMACTL 0x04bc /* DMA control */
+
+#define COMEM_HCTL 0x04e0 /* Host control */
+#define COMEM_HINT 0x04e4 /* Host interrupt control/status */
+#define COMEM_HLDATA 0x04e8 /* Host to local data mailbox */
+#define COMEM_LINT 0x04f4 /* Local interrupt contole status */
+#define COMEM_LHDATA 0x04f8 /* Local to host data mailbox */
+
+#define COMEM_LBUSCFG 0x04fc /* Local bus configuration */
+
+
+/*
+ * Commands and flags for use with Direct Access Register.
+ */
+#define COMEM_DA_IACK 0x00000000 /* Interrupt acknowledge (read) */
+#define COMEM_DA_SPCL 0x00000010 /* Special cycle (write) */
+#define COMEM_DA_MEMRD 0x00000004 /* Memory read cycle */
+#define COMEM_DA_MEMWR 0x00000004 /* Memory write cycle */
+#define COMEM_DA_IORD 0x00000002 /* I/O read cycle */
+#define COMEM_DA_IOWR 0x00000002 /* I/O write cycle */
+#define COMEM_DA_CFGRD 0x00000006 /* Configuration read cycle */
+#define COMEM_DA_CFGWR 0x00000006 /* Configuration write cycle */
+
+#define COMEM_DA_ADDR(a) ((a) & 0xffffe000)
+
+#define COMEM_DA_OFFSET(a) ((a) & 0x00001fff)
+
+
+/*
+ * The PCI bus will be limited in what slots will actually be used.
+ * Define valid device numbers for different boards.
+ */
+#if defined(CONFIG_M5407C3)
+#define COMEM_MINDEV 14 /* Minimum valid DEVICE */
+#define COMEM_MAXDEV 14 /* Maximum valid DEVICE */
+#define COMEM_BRIDGEDEV 15 /* Slot bridge is in */
+#else
+#define COMEM_MINDEV 0 /* Minimum valid DEVICE */
+#define COMEM_MAXDEV 3 /* Maximum valid DEVICE */
+#endif
+
+#define COMEM_MAXPCI (COMEM_MAXDEV+1) /* Maximum PCI devices */
+
+
+/****************************************************************************/
+#endif /* anchor_h */
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