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authorRalf Baechle <ralf@linux-mips.org>1998-05-07 02:55:41 +0000
committerRalf Baechle <ralf@linux-mips.org>1998-05-07 02:55:41 +0000
commitdcec8a13bf565e47942a1751a9cec21bec5648fe (patch)
tree548b69625b18cc2e88c3e68d0923be546c9ebb03 /include/asm-ppc/mbx.h
parent2e0f55e79c49509b7ff70ff1a10e1e9e90a3dfd4 (diff)
o Merge with Linux 2.1.99.
o Fix ancient bug in the ELF loader making ldd crash. o Fix ancient bug in the keyboard code for SGI, SNI and Jazz.
Diffstat (limited to 'include/asm-ppc/mbx.h')
-rw-r--r--include/asm-ppc/mbx.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/include/asm-ppc/mbx.h b/include/asm-ppc/mbx.h
new file mode 100644
index 000000000..f81c64b8c
--- /dev/null
+++ b/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