summaryrefslogtreecommitdiffstats
path: root/include/asm-sh64/platform.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-sh64/platform.h')
-rw-r--r--include/asm-sh64/platform.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/include/asm-sh64/platform.h b/include/asm-sh64/platform.h
new file mode 100644
index 0000000..7046a90
--- /dev/null
+++ b/include/asm-sh64/platform.h
@@ -0,0 +1,69 @@
+#ifndef __ASM_SH64_PLATFORM_H
+#define __ASM_SH64_PLATFORM_H
+
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * include/asm-sh64/platform.h
+ *
+ * Copyright (C) 2000, 2001 Paolo Alberelli
+ *
+ * benedict.gaster@superh.com: 3rd May 2002
+ * Added support for ramdisk, removing statically linked romfs at the same time.
+ */
+
+#include <linux/ioport.h>
+#include <asm/irq.h>
+
+
+/*
+ * Platform definition structure.
+ */
+struct sh64_platform {
+ unsigned int readonly_rootfs;
+ unsigned int ramdisk_flags;
+ unsigned int initial_root_dev;
+ unsigned int loader_type;
+ unsigned int initrd_start;
+ unsigned int initrd_size;
+ unsigned int fpu_flags;
+ unsigned int io_res_count;
+ unsigned int kram_res_count;
+ unsigned int xram_res_count;
+ unsigned int rom_res_count;
+ struct resource *io_res_p;
+ struct resource *kram_res_p;
+ struct resource *xram_res_p;
+ struct resource *rom_res_p;
+};
+
+extern struct sh64_platform platform_parms;
+
+extern unsigned long long memory_start, memory_end;
+
+extern unsigned long long fpu_in_use;
+
+extern int platform_int_priority[NR_INTC_IRQS];
+
+#define FPU_FLAGS (platform_parms.fpu_flags)
+#define STANDARD_IO_RESOURCES (platform_parms.io_res_count)
+#define STANDARD_KRAM_RESOURCES (platform_parms.kram_res_count)
+#define STANDARD_XRAM_RESOURCES (platform_parms.xram_res_count)
+#define STANDARD_ROM_RESOURCES (platform_parms.rom_res_count)
+
+/*
+ * Kernel Memory description, Respectively:
+ * code = last but one memory descriptor
+ * data = last memory descriptor
+ */
+#define code_resource (platform_parms.kram_res_p[STANDARD_KRAM_RESOURCES - 2])
+#define data_resource (platform_parms.kram_res_p[STANDARD_KRAM_RESOURCES - 1])
+
+/* Be prepared to 64-bit sign extensions */
+#define PFN_UP(x) ((((x) + PAGE_SIZE-1) >> PAGE_SHIFT) & 0x000fffff)
+#define PFN_DOWN(x) (((x) >> PAGE_SHIFT) & 0x000fffff)
+#define PFN_PHYS(x) ((x) << PAGE_SHIFT)
+
+#endif /* __ASM_SH64_PLATFORM_H */
OpenPOWER on IntegriCloud