patch-2.1.97 linux/include/asm-ppc/mbx.h

• Lines: 63
• Date: Tue Apr 14 17:34:00 1998
• Orig file: v2.1.96/linux/include/asm-ppc/mbx.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.96/linux/include/asm-ppc/mbx.h linux/include/asm-ppc/mbx.h
@@ -0,0 +1,62 @@
+
+/*
+ * 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)
+ */
+#ifndef __MACH_MBX_DEFS
+#define __MACH_MBX_DEFS
+
+/* 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 */
+} 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		((uint)0x80000000)
+#define PCI_ISA_IO_SIZE		((uint)(512 * 1024 * 1024))
+#define PCI_ISA_MEM_ADDR	((uint)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 MBX_IMAP_ADDR		((uint)0xfa200000)
+#define MBX_IMAP_SIZE		((uint)(64 * 1024))
+#define PCI_CSR_ADDR		((uint)0xfa210000)
+#define PCI_CSR_SIZE		((uint)(64 * 1024))
+#endif