Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright 2001 MontaVista Software Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * Author: Fuxin Zhang, zhangfx@lemote.com
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/compiler.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <loongson.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) static inline void bonito_irq_enable(struct irq_data *d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	LOONGSON_INTENSET = (1 << (d->irq - LOONGSON_IRQ_BASE));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	mmiowb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static inline void bonito_irq_disable(struct irq_data *d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	LOONGSON_INTENCLR = (1 << (d->irq - LOONGSON_IRQ_BASE));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	mmiowb();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static struct irq_chip bonito_irq_type = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	.name		= "bonito_irq",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	.irq_mask	= bonito_irq_disable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	.irq_unmask	= bonito_irq_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) void bonito_irq_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	for (i = LOONGSON_IRQ_BASE; i < LOONGSON_IRQ_BASE + 32; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 		irq_set_chip_and_handler(i, &bonito_irq_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 					 handle_level_irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #ifdef CONFIG_CPU_LOONGSON2E
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	i = LOONGSON_IRQ_BASE + 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	if (request_irq(i, no_action, 0, "dma_timeout", NULL))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		pr_err("Failed to request irq %d (dma_timeout)\n", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }