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Diffstat (limited to 'include/asm-sh64/platform.h')
| -rw-r--r-- | include/asm-sh64/platform.h | 69 |
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 00000000000..7046a901402 --- /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 */ |