1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (c) 2013 Google, Inc 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef __DM_UTIL_H 8*4882a593Smuzhiyun #define __DM_UTIL_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifdef CONFIG_DM_WARN 11*4882a593Smuzhiyun void dm_warn(const char *fmt, ...); 12*4882a593Smuzhiyun #else dm_warn(const char * fmt,...)13*4882a593Smuzhiyunstatic inline void dm_warn(const char *fmt, ...) 14*4882a593Smuzhiyun { 15*4882a593Smuzhiyun } 16*4882a593Smuzhiyun #endif 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun struct list_head; 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /** 21*4882a593Smuzhiyun * list_count_items() - Count number of items in a list 22*4882a593Smuzhiyun * 23*4882a593Smuzhiyun * @param head: Head of list 24*4882a593Smuzhiyun * @return number of items, or 0 if empty 25*4882a593Smuzhiyun */ 26*4882a593Smuzhiyun int list_count_items(struct list_head *head); 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun /* Dump out a tree of all devices */ 29*4882a593Smuzhiyun void dm_dump_all(void); 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun /* Dump out a list of uclasses and their devices */ 32*4882a593Smuzhiyun void dm_dump_uclass(void); 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun #ifdef CONFIG_DEBUG_DEVRES 35*4882a593Smuzhiyun /* Dump out a list of device resources */ 36*4882a593Smuzhiyun void dm_dump_devres(void); 37*4882a593Smuzhiyun #else dm_dump_devres(void)38*4882a593Smuzhiyunstatic inline void dm_dump_devres(void) 39*4882a593Smuzhiyun { 40*4882a593Smuzhiyun } 41*4882a593Smuzhiyun #endif 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun /** 44*4882a593Smuzhiyun * Check if a dt node should be or was bound before relocation. 45*4882a593Smuzhiyun * 46*4882a593Smuzhiyun * Devicetree nodes can be marked as needed to be bound 47*4882a593Smuzhiyun * in the loader stages via special devicetree properties. 48*4882a593Smuzhiyun * 49*4882a593Smuzhiyun * Before relocation this function can be used to check if nodes 50*4882a593Smuzhiyun * are required in either SPL or TPL stages. 51*4882a593Smuzhiyun * 52*4882a593Smuzhiyun * After relocation and jumping into the real U-Boot binary 53*4882a593Smuzhiyun * it is possible to determine if a node was bound in one of 54*4882a593Smuzhiyun * SPL/TPL stages. 55*4882a593Smuzhiyun * 56*4882a593Smuzhiyun * There are 3 settings currently in use 57*4882a593Smuzhiyun * - 58*4882a593Smuzhiyun * - u-boot,dm-pre-reloc: legacy and indicates any of TPL or SPL 59*4882a593Smuzhiyun * Existing platforms only use it to indicate nodes needee in 60*4882a593Smuzhiyun * SPL. Should probably be replaced by u-boot,dm-spl for 61*4882a593Smuzhiyun * existing platforms. 62*4882a593Smuzhiyun * @blob: devicetree 63*4882a593Smuzhiyun * @offset: node offset 64*4882a593Smuzhiyun * 65*4882a593Smuzhiyun * Returns true if node is needed in SPL/TL, false otherwise. 66*4882a593Smuzhiyun */ 67*4882a593Smuzhiyun bool dm_fdt_pre_reloc(const void *blob, int offset); 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun #endif 70