mbx.h
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- /*
- * BK Id: SCCS/s.mbx.h 1.11 08/17/01 15:23:17 paulus
- */
- /*
- * A collection of structures, addresses, and values associated with
- * the Motorola MBX boards. This was originally created for the
- * MBX860, and probably needs revisions for other boards (like the 821).
- * When this file gets out of control, we can split it up into more
- * meaningful pieces.
- *
- * Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
- */
- #ifdef __KERNEL__
- #ifndef __MACH_MBX_DEFS
- #define __MACH_MBX_DEFS
- #ifndef __ASSEMBLY__
- /* A Board Information structure that is given to a program when
- * EPPC-Bug starts it up.
- */
- typedef struct bd_info {
- unsigned int bi_tag; /* Should be 0x42444944 "BDID" */
- unsigned int bi_size; /* Size of this structure */
- unsigned int bi_revision; /* revision of this structure */
- unsigned int bi_bdate; /* EPPCbug date, i.e. 0x11061997 */
- unsigned int bi_memstart; /* Memory start address */
- unsigned int bi_memsize; /* Memory (end) size in bytes */
- unsigned int bi_intfreq; /* Internal Freq, in Hz */
- unsigned int bi_busfreq; /* Bus Freq, in Hz */
- unsigned int bi_clun; /* Boot device controller */
- unsigned int bi_dlun; /* Boot device logical dev */
- /* These fields are not part of the board information structure
- * provided by the boot rom. They are filled in by embed_config.c
- * so we have the information consistent with other platforms.
- */
- unsigned char bi_enetaddr[6];
- unsigned int bi_baudrate;
- } bd_t;
- /* Memory map for the MBX as configured by EPPC-Bug. We could reprogram
- * The SIU and PCI bridge, and try to use larger MMU pages, but the
- * performance gain is not measureable and it certainly complicates the
- * generic MMU model.
- *
- * In a effort to minimize memory usage for embedded applications, any
- * PCI driver or ISA driver must request or map the region required by
- * the device. For convenience (and since we can map up to 4 Mbytes with
- * a single page table page), the MMU initialization will map the
- * NVRAM, Status/Control registers, CPM Dual Port RAM, and the PCI
- * Bridge CSRs 1:1 into the kernel address space.
- */
- #define PCI_ISA_IO_ADDR ((unsigned)0x80000000)
- #define PCI_ISA_IO_SIZE ((uint)(512 * 1024 * 1024))
- #define PCI_IDE_ADDR ((unsigned)0x81000000)
- #define PCI_ISA_MEM_ADDR ((unsigned)0xc0000000)
- #define PCI_ISA_MEM_SIZE ((uint)(512 * 1024 * 1024))
- #define PCMCIA_MEM_ADDR ((uint)0xe0000000)
- #define PCMCIA_MEM_SIZE ((uint)(64 * 1024 * 1024))
- #define PCMCIA_DMA_ADDR ((uint)0xe4000000)
- #define PCMCIA_DMA_SIZE ((uint)(64 * 1024 * 1024))
- #define PCMCIA_ATTRB_ADDR ((uint)0xe8000000)
- #define PCMCIA_ATTRB_SIZE ((uint)(64 * 1024 * 1024))
- #define PCMCIA_IO_ADDR ((uint)0xec000000)
- #define PCMCIA_IO_SIZE ((uint)(64 * 1024 * 1024))
- #define NVRAM_ADDR ((uint)0xfa000000)
- #define NVRAM_SIZE ((uint)(1 * 1024 * 1024))
- #define MBX_CSR_ADDR ((uint)0xfa100000)
- #define MBX_CSR_SIZE ((uint)(1 * 1024 * 1024))
- #define IMAP_ADDR ((uint)0xfa200000)
- #define IMAP_SIZE ((uint)(64 * 1024))
- #define PCI_CSR_ADDR ((uint)0xfa210000)
- #define PCI_CSR_SIZE ((uint)(64 * 1024))
- /* Map additional physical space into well known virtual addresses. Due
- * to virtual address mapping, these physical addresses are not accessible
- * in a 1:1 virtual to physical mapping.
- */
- #define ISA_IO_VIRT_ADDR ((uint)0xfa220000)
- #define ISA_IO_VIRT_SIZE ((uint)64 * 1024)
- /* Interrupt assignments.
- * These are defined (and fixed) by the MBX hardware implementation.
- */
- #define POWER_FAIL_INT SIU_IRQ0 /* Power fail */
- #define TEMP_HILO_INT SIU_IRQ1 /* Temperature sensor */
- #define QSPAN_INT SIU_IRQ2 /* PCI Bridge (DMA CTLR?) */
- #define ISA_BRIDGE_INT SIU_IRQ3 /* All those PC things */
- #define COMM_L_INT SIU_IRQ6 /* MBX Comm expansion connector pin */
- #define STOP_ABRT_INT SIU_IRQ7 /* Stop/Abort header pin */
- #endif /* !__ASSEMBLY__ */
- /* The MBX uses the 8259.
- */
- #define NR_8259_INTS 16
- #endif
- #endif /* __KERNEL__ */