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- /*
- * include/asm-arm/arch-at91/hardware.h
- *
- * Copyright (C) 2003 SAN People
- * Copyright (C) 2003 ATMEL
- *
- * 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.
- *
- */
- #ifndef __ASM_ARCH_HARDWARE_H
- #define __ASM_ARCH_HARDWARE_H
- #include <asm/sizes.h>
- #if defined(CONFIG_ARCH_AT91RM9200)
- #include <asm/arch/at91rm9200.h>
- #elif defined(CONFIG_ARCH_AT91SAM9260)
- #include <asm/arch/at91sam9260.h>
- #elif defined(CONFIG_ARCH_AT91SAM9261)
- #include <asm/arch/at91sam9261.h>
- #elif defined(CONFIG_ARCH_AT91SAM9263)
- #include <asm/arch/at91sam9263.h>
- #else
- #error "Unsupported AT91 processor"
- #endif
- /*
- * Remap the peripherals from address 0xFFF78000 .. 0xFFFFFFFF
- * to 0xFEF78000 .. 0xFF000000. (544Kb)
- */
- #define AT91_IO_PHYS_BASE 0xFFF78000
- #define AT91_IO_SIZE (0xFFFFFFFF - AT91_IO_PHYS_BASE + 1)
- #define AT91_IO_VIRT_BASE (0xFF000000 - AT91_IO_SIZE)
- /* Convert a physical IO address to virtual IO address */
- #define AT91_IO_P2V(x) ((x) - AT91_IO_PHYS_BASE + AT91_IO_VIRT_BASE)
- /*
- * Virtual to Physical Address mapping for IO devices.
- */
- #define AT91_VA_BASE_SYS AT91_IO_P2V(AT91_BASE_SYS)
- #define AT91_VA_BASE_EMAC AT91_IO_P2V(AT91RM9200_BASE_EMAC)
- /* Internal SRAM is mapped below the IO devices */
- #define AT91_SRAM_MAX SZ_1M
- #define AT91_VIRT_BASE (AT91_IO_VIRT_BASE - AT91_SRAM_MAX)
- /* Serial ports */
- #define ATMEL_MAX_UART 7 /* 6 USART3's and one DBGU port (SAM9260) */
- /* External Memory Map */
- #define AT91_CHIPSELECT_0 0x10000000
- #define AT91_CHIPSELECT_1 0x20000000
- #define AT91_CHIPSELECT_2 0x30000000
- #define AT91_CHIPSELECT_3 0x40000000
- #define AT91_CHIPSELECT_4 0x50000000
- #define AT91_CHIPSELECT_5 0x60000000
- #define AT91_CHIPSELECT_6 0x70000000
- #define AT91_CHIPSELECT_7 0x80000000
- /* SDRAM */
- #define AT91_SDRAM_BASE AT91_CHIPSELECT_1
- /* Clocks */
- #define AT91_SLOW_CLOCK 32768 /* slow clock */
- #ifndef __ASSEMBLY__
- #include <asm/io.h>
- static inline unsigned int at91_sys_read(unsigned int reg_offset)
- {
- void __iomem *addr = (void __iomem *)AT91_VA_BASE_SYS;
- return __raw_readl(addr + reg_offset);
- }
- static inline void at91_sys_write(unsigned int reg_offset, unsigned long value)
- {
- void __iomem *addr = (void __iomem *)AT91_VA_BASE_SYS;
- __raw_writel(value, addr + reg_offset);
- }
- #endif
- #endif
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