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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2011-01-13 weety first version
*/
#ifndef __ASM_ARCH_IO_H
#define __ASM_ARCH_IO_H
#define AT91_BASE_SYS 0xffffe800
#define IO_SPACE_LIMIT 0xFFFFFFFF
#define readb(a) (*(volatile unsigned char *)(a))
#define readw(a) (*(volatile unsigned short *)(a))
#define readl(a) (*(volatile unsigned int *)(a))
#define writeb(v,a) (*(volatile unsigned char *)(a) = (v))
#define writew(v,a) (*(volatile unsigned short *)(a) = (v))
#define writel(v,a) (*(volatile unsigned int *)(a) = (v))
rt_inline unsigned int at91_sys_read(unsigned int reg_offset)
{
unsigned int addr = AT91_BASE_SYS;
return readl(addr + reg_offset);
}
rt_inline void at91_sys_write(unsigned int reg_offset, unsigned long value)
{
unsigned int addr = AT91_BASE_SYS;
writel(value, addr + reg_offset);
}
#endif
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