Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2020 Google, Inc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #ifndef _ASM_RISCV_CLINT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #define _ASM_RISCV_CLINT_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <asm/mmio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #ifdef CONFIG_RISCV_M_MODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * This lives in the CLINT driver, but is accessed directly by timex.h to avoid
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  * any overhead when accessing the MMIO timer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * The ISA defines mtime as a 64-bit memory-mapped register that increments at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  * a constant frequency, but it doesn't define some other constraints we depend
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)  * on (most notably ordering constraints, but also some simpler stuff like the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * memory layout).  Thus, this is called "clint_time_val" instead of something
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  * like "riscv_mtime", to signify that these non-ISA assumptions must hold.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) extern u64 __iomem *clint_time_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #endif