| // SPDX-License-Identifier: GPL-2.0-or-later |
| /* |
| * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology |
| * Author: Fuxin Zhang, zhangfx@lemote.com |
| */ |
| #include <linux/export.h> |
| #include <linux/init.h> |
| |
| #include <asm/wbflush.h> |
| #include <asm/bootinfo.h> |
| #include <linux/libfdt.h> |
| #include <linux/of_fdt.h> |
| |
| #include <asm/prom.h> |
| |
| #include <loongson.h> |
| |
| void *loongson_fdt_blob; |
| |
| static void wbflush_loongson(void) |
| { |
| asm(".set\tpush\n\t" |
| ".set\tnoreorder\n\t" |
| ".set mips3\n\t" |
| "sync\n\t" |
| "nop\n\t" |
| ".set\tpop\n\t" |
| ".set mips0\n\t"); |
| } |
| |
| void (*__wbflush)(void) = wbflush_loongson; |
| EXPORT_SYMBOL(__wbflush); |
| |
| void __init plat_mem_setup(void) |
| { |
| if (loongson_fdt_blob) |
| __dt_setup_arch(loongson_fdt_blob); |
| } |
| |
| void __init device_tree_init(void) |
| { |
| if (!initial_boot_params) |
| return; |
| |
| unflatten_and_copy_device_tree(); |
| } |