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) 2014 Carlo Caione
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Carlo Caione <carlo@caione.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #define MESON_AO_UART_WFIFO		0x0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #define MESON_AO_UART_STATUS		0xc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define MESON_AO_UART_TX_FIFO_EMPTY	(1 << 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define MESON_AO_UART_TX_FIFO_FULL	(1 << 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	.macro	addruart, rp, rv, tmp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	ldr	\rp, =(CONFIG_DEBUG_UART_PHYS)		@ physical
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	ldr	\rv, =(CONFIG_DEBUG_UART_VIRT)		@ virtual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	.endm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	.macro	senduart,rd,rx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	str	\rd, [\rx, #MESON_AO_UART_WFIFO]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	.endm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	.macro	busyuart,rd,rx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 1002:	ldr	\rd, [\rx, #MESON_AO_UART_STATUS]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	tst	\rd, #MESON_AO_UART_TX_FIFO_EMPTY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	beq	1002b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	.endm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	.macro	waituartcts,rd,rx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	.endm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	.macro	waituarttxrdy,rd,rx
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 1001:	ldr	\rd, [\rx, #MESON_AO_UART_STATUS]
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	tst	\rd, #MESON_AO_UART_TX_FIFO_FULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	bne	1001b
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	.endm