aboutsummaryrefslogtreecommitdiff
path: root/include/asm-arm/arch-sa1100/hardware.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/arch-sa1100/hardware.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-arm/arch-sa1100/hardware.h')
-rw-r--r--include/asm-arm/arch-sa1100/hardware.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/include/asm-arm/arch-sa1100/hardware.h b/include/asm-arm/arch-sa1100/hardware.h
new file mode 100644
index 00000000000..10c62db3436
--- /dev/null
+++ b/include/asm-arm/arch-sa1100/hardware.h
@@ -0,0 +1,83 @@
+/*
+ * linux/include/asm-arm/arch-sa1100/hardware.h
+ *
+ * Copyright (C) 1998 Nicolas Pitre <nico@cam.org>
+ *
+ * This file contains the hardware definitions for SA1100 architecture
+ *
+ * 2000/05/23 John Dorsey <john+@cs.cmu.edu>
+ * Definitions for SA1111 added.
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#include <linux/config.h>
+
+/* Flushing areas */
+#define FLUSH_BASE_PHYS 0xe0000000 /* SA1100 zero bank */
+#define FLUSH_BASE 0xf5000000
+#define FLUSH_BASE_MINICACHE 0xf5800000
+#define UNCACHEABLE_ADDR 0xfa050000
+
+
+/*
+ * We requires absolute addresses i.e. (PCMCIA_IO_0_BASE + 0x3f8) for
+ * in*()/out*() macros to be usable for all cases.
+ */
+#define PCIO_BASE 0
+
+
+/*
+ * SA1100 internal I/O mappings
+ *
+ * We have the following mapping:
+ * phys virt
+ * 80000000 f8000000
+ * 90000000 fa000000
+ * a0000000 fc000000
+ * b0000000 fe000000
+ */
+
+#define VIO_BASE 0xf8000000 /* virtual start of IO space */
+#define VIO_SHIFT 3 /* x = IO space shrink power */
+#define PIO_START 0x80000000 /* physical start of IO space */
+
+#define io_p2v( x ) \
+ ( (((x)&0x00ffffff) | (((x)&0x30000000)>>VIO_SHIFT)) + VIO_BASE )
+#define io_v2p( x ) \
+ ( (((x)&0x00ffffff) | (((x)&(0x30000000>>VIO_SHIFT))<<VIO_SHIFT)) + PIO_START )
+
+#ifndef __ASSEMBLY__
+#include <asm/types.h>
+
+#if 0
+# define __REG(x) (*((volatile u32 *)io_p2v(x)))
+#else
+/*
+ * This __REG() version gives the same results as the one above, except
+ * that we are fooling gcc somehow so it generates far better and smaller
+ * assembly code for access to contigous registers. It's a shame that gcc
+ * doesn't guess this by itself.
+ */
+typedef struct { volatile u32 offset[4096]; } __regbase;
+# define __REGP(x) ((__regbase *)((x)&~4095))->offset[((x)&4095)>>2]
+# define __REG(x) __REGP(io_p2v(x))
+#endif
+
+# define __PREG(x) (io_v2p((u32)&(x)))
+
+#else
+
+# define __REG(x) io_p2v(x)
+# define __PREG(x) io_v2p(x)
+
+#endif
+
+#include "SA-1100.h"
+
+#ifdef CONFIG_SA1101
+#include "SA-1101.h"
+#endif
+
+#endif /* _ASM_ARCH_HARDWARE_H */