drivers/sysreset/sysreset_microblaze.c at master

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u-boot / drivers / sysreset / sysreset_microblaze.c

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Tom Rini Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet" 2y ago

03de305e

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (C) 2018 Xilinx, Inc. - Michal Simek
 4 */
 5
 6#include <dm.h>
 7#include <errno.h>
 8#include <sysreset.h>
 9#include <linux/err.h>
10#include <linux/stringify.h>
11
12static int microblaze_sysreset_request(struct udevice *dev,
13				       enum sysreset_t type)
14{
15	puts("Microblaze soft reset sysreset\n");
16	__asm__ __volatile__ (
17	    "mts rmsr, r0;" \
18	    "brai " __stringify(CONFIG_XILINX_MICROBLAZE0_VECTOR_BASE_ADDR));
19
20	return -EINPROGRESS;
21}
22
23static struct sysreset_ops microblaze_sysreset = {
24	.request = microblaze_sysreset_request,
25};
26
27U_BOOT_DRIVER(sysreset_microblaze) = {
28	.id	= UCLASS_SYSRESET,
29	.name	= "mb_soft_reset",
30	.ops	= &microblaze_sysreset,
31};