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GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

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lai
2026-09-06 03:52:57 +08:00
commit b1928b41c0
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mcu/riscv/arm/include/io.h
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#ifndef __ASM_ARM_IO_H
#define __ASM_ARM_IO_H
#include <sys/types.h>
#include <barriers.h>
#define __arch_getl(a) (*(volatile unsigned int *)(a))
#define __arch_putl(v,a) (*(volatile unsigned int *)(a) = (v))
#define mb() dsb()
#define __iormb() dmb()
#define __iowmb() dmb()
#ifdef REG_IORW_DEBUG
#include <serial.h>
#define writel(v,c) ({ u32 __v = v; __iowmb(); serial_puts("REG W: 0x"); serial_put_hex(c); serial_puts(", 0x"); serial_put_hex(__v); serial_puts("\n"); __arch_putl(__v,c); __v; })
#define readl(c) ({ u32 __v; serial_puts("REG R: 0x"); serial_put_hex(c); __v = __arch_getl(c); __iormb(); serial_puts(", 0x"); serial_put_hex(__v); serial_puts("\n"); __v; })
#else
#define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v; })
#define readl(c) ({ u32 __v = __arch_getl(c); __iormb(); __v; })
#endif
#endif /* __ASM_ARM_IO_H */