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Diffstat (limited to 'include/asm-arm/arch-mx28/mx28.h')
| -rw-r--r-- | include/asm-arm/arch-mx28/mx28.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/asm-arm/arch-mx28/mx28.h b/include/asm-arm/arch-mx28/mx28.h new file mode 100644 index 0000000..b6343f3 --- /dev/null +++ b/include/asm-arm/arch-mx28/mx28.h @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2008 Embedded Alley Solutions Inc. + * + * (C) Copyright 2009 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef MX28_H +#define MX28_H + +/* + * Most of MX28 SoC registers are associated with four addresses + * used for different operations - read/write, set, clear and toggle bits. + * + * Some of registers do not implement such feature and, thus, should be + * accessed/manipulated via single address in common way. + */ +#define REG_RD(x) (*(volatile unsigned int *)(x)) +#define REG_WR(x, v) ((*(volatile unsigned int *)(x)) = (v)) +#define REG_SET(x, v) ((*(volatile unsigned int *)((x) + 0x04)) = (v)) +#define REG_CLR(x, v) ((*(volatile unsigned int *)((x) + 0x08)) = (v)) +#define REG_TOG(x, v) ((*(volatile unsigned int *)((x) + 0x0c)) = (v)) + +#define MX28_OCRAM_BASE 0x00000000 +#define MX28_SDRAM_BASE 0x40000000 +#define MX28_REGS_BASE 0x80000000 + +#endif /* MX28_H */ |