1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (C) 2007 Lemote Inc. & Institute of Computing Technology 4*4882a593Smuzhiyun * Author: Fuxin Zhang, zhangfx@lemote.com 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun #include <linux/export.h> 7*4882a593Smuzhiyun #include <linux/init.h> 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun #include <asm/wbflush.h> 10*4882a593Smuzhiyun #include <asm/bootinfo.h> 11*4882a593Smuzhiyun #include <linux/libfdt.h> 12*4882a593Smuzhiyun #include <linux/of_fdt.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #include <asm/prom.h> 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #include <loongson.h> 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun void *loongson_fdt_blob; 19*4882a593Smuzhiyun wbflush_loongson(void)20*4882a593Smuzhiyunstatic void wbflush_loongson(void) 21*4882a593Smuzhiyun { 22*4882a593Smuzhiyun asm(".set\tpush\n\t" 23*4882a593Smuzhiyun ".set\tnoreorder\n\t" 24*4882a593Smuzhiyun ".set mips3\n\t" 25*4882a593Smuzhiyun "sync\n\t" 26*4882a593Smuzhiyun "nop\n\t" 27*4882a593Smuzhiyun ".set\tpop\n\t" 28*4882a593Smuzhiyun ".set mips0\n\t"); 29*4882a593Smuzhiyun } 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun void (*__wbflush)(void) = wbflush_loongson; 32*4882a593Smuzhiyun EXPORT_SYMBOL(__wbflush); 33*4882a593Smuzhiyun plat_mem_setup(void)34*4882a593Smuzhiyunvoid __init plat_mem_setup(void) 35*4882a593Smuzhiyun { 36*4882a593Smuzhiyun if (loongson_fdt_blob) 37*4882a593Smuzhiyun __dt_setup_arch(loongson_fdt_blob); 38*4882a593Smuzhiyun } 39*4882a593Smuzhiyun device_tree_init(void)40*4882a593Smuzhiyunvoid __init device_tree_init(void) 41*4882a593Smuzhiyun { 42*4882a593Smuzhiyun if (!initial_boot_params) 43*4882a593Smuzhiyun return; 44*4882a593Smuzhiyun 45*4882a593Smuzhiyun unflatten_and_copy_device_tree(); 46*4882a593Smuzhiyun } 47