1/* SPDX-License-Identifier: GPL-2.0+ */ 2/* 3 * Copyright (c) 2012 The Chromium OS Authors. 4 * (C) Copyright 2002-2010 5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 6 */ 7 8#ifndef __ASM_GENERIC_GBL_DATA_H 9#define __ASM_GENERIC_GBL_DATA_H 10/* 11 * The following data structure is placed in some memory which is 12 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or 13 * some locked parts of the data cache) to allow for a minimum set of 14 * global variables during system initialization (until we have set 15 * up the memory controller so that we can use RAM). 16 * 17 * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t) 18 * 19 * Each architecture has its own private fields. For now all are private 20 */ 21 22#ifndef __ASSEMBLY__ 23#include <fdtdec.h> 24#include <membuff.h> 25#include <linux/list.h> 26 27typedef struct global_data { 28 bd_t *bd; 29 unsigned long flags; 30 unsigned int baudrate; 31 unsigned long cpu_clk; /* CPU clock in Hz! */ 32 unsigned long bus_clk; 33 /* We cannot bracket this with CONFIG_PCI due to mpc5xxx */ 34 unsigned long pci_clk; 35 unsigned long mem_clk; 36#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) || defined(CONFIG_DM_VIDEO) 37 unsigned long fb_base; /* Base address of framebuffer mem */ 38#endif 39#if defined(CONFIG_POST) 40 unsigned long post_log_word; /* Record POST activities */ 41 unsigned long post_log_res; /* success of POST test */ 42 unsigned long post_init_f_time; /* When post_init_f started */ 43#endif 44#ifdef CONFIG_BOARD_TYPES 45 unsigned long board_type; 46#endif 47 unsigned long have_console; /* serial_init() was called */ 48#if CONFIG_IS_ENABLED(PRE_CONSOLE_BUFFER) 49 unsigned long precon_buf_idx; /* Pre-Console buffer index */ 50#endif 51 unsigned long env_addr; /* Address of Environment struct */ 52 unsigned long env_valid; /* Environment valid? enum env_valid */ 53 unsigned long env_has_init; /* Bitmask of boolean of struct env_location offsets */ 54 int env_load_prio; /* Priority of the loaded environment */ 55 56 unsigned long ram_base; /* Base address of RAM used by U-Boot */ 57 unsigned long ram_top; /* Top address of RAM used by U-Boot */ 58 unsigned long relocaddr; /* Start address of U-Boot in RAM */ 59 phys_size_t ram_size; /* RAM size */ 60 unsigned long mon_len; /* monitor len */ 61 unsigned long irq_sp; /* irq stack pointer */ 62 unsigned long start_addr_sp; /* start_addr_stackpointer */ 63 unsigned long reloc_off; 64 struct global_data *new_gd; /* relocated global data */ 65 66#ifdef CONFIG_DM 67 struct udevice *dm_root; /* Root instance for Driver Model */ 68 struct udevice *dm_root_f; /* Pre-relocation root instance */ 69 struct list_head uclass_root; /* Head of core tree */ 70#endif 71#ifdef CONFIG_TIMER 72 struct udevice *timer; /* Timer instance for Driver Model */ 73#endif 74 75 const void *fdt_blob; /* Our device tree, NULL if none */ 76 void *new_fdt; /* Relocated FDT */ 77 unsigned long fdt_size; /* Space reserved for relocated FDT */ 78#ifdef CONFIG_OF_LIVE 79 struct device_node *of_root; 80#endif 81 82#if CONFIG_IS_ENABLED(MULTI_DTB_FIT) 83 const void *multi_dtb_fit; /* uncompressed multi-dtb FIT image */ 84#endif 85 struct jt_funcs *jt; /* jump table */ 86 char env_buf[32]; /* buffer for env_get() before reloc. */ 87#ifdef CONFIG_TRACE 88 void *trace_buff; /* The trace buffer */ 89#endif 90#if defined(CONFIG_SYS_I2C) 91 int cur_i2c_bus; /* current used i2c bus */ 92#endif 93#ifdef CONFIG_SYS_I2C_MXC 94 void *srdata[10]; 95#endif 96 unsigned int timebase_h; 97 unsigned int timebase_l; 98#if CONFIG_VAL(SYS_MALLOC_F_LEN) 99 unsigned long malloc_base; /* base address of early malloc() */ 100 unsigned long malloc_limit; /* limit address */ 101 unsigned long malloc_ptr; /* current address */ 102#endif 103#ifdef CONFIG_PCI 104 struct pci_controller *hose; /* PCI hose for early use */ 105 phys_addr_t pci_ram_top; /* top of region accessible to PCI */ 106#endif 107#ifdef CONFIG_PCI_BOOTDELAY 108 int pcidelay_done; 109#endif 110 struct udevice *cur_serial_dev; /* current serial device */ 111 struct arch_global_data arch; /* architecture-specific data */ 112#ifdef CONFIG_CONSOLE_RECORD 113 struct membuff console_out; /* console output */ 114 struct membuff console_in; /* console input */ 115#endif 116#ifdef CONFIG_DM_VIDEO 117 ulong video_top; /* Top of video frame buffer area */ 118 ulong video_bottom; /* Bottom of video frame buffer area */ 119#endif 120#ifdef CONFIG_BOOTSTAGE 121 struct bootstage_data *bootstage; /* Bootstage information */ 122 struct bootstage_data *new_bootstage; /* Relocated bootstage info */ 123#endif 124#ifdef CONFIG_LOG 125 int log_drop_count; /* Number of dropped log messages */ 126 int default_log_level; /* For devices with no filters */ 127 struct list_head log_head; /* List of struct log_device */ 128 int log_fmt; /* Mask containing log format info */ 129#endif 130#if CONFIG_IS_ENABLED(BLOBLIST) 131 struct bloblist_hdr *bloblist; /* Bloblist information */ 132 struct bloblist_hdr *new_bloblist; /* Relocated blolist info */ 133# ifdef CONFIG_SPL 134 struct spl_handoff *spl_handoff; 135# endif 136#endif 137#if defined(CONFIG_TRANSLATION_OFFSET) 138 fdt_addr_t translation_offset; /* optional translation offset */ 139#endif 140#if CONFIG_IS_ENABLED(WDT) 141 struct udevice *watchdog_dev; 142#endif 143} gd_t; 144#endif 145 146#ifdef CONFIG_BOARD_TYPES 147#define gd_board_type() gd->board_type 148#else 149#define gd_board_type() 0 150#endif 151 152/* 153 * Global Data Flags 154 */ 155#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ 156#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ 157#define GD_FLG_SILENT 0x00004 /* Silent mode */ 158#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ 159#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ 160#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ 161#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ 162#define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */ 163#define GD_FLG_SERIAL_READY 0x00100 /* Pre-reloc serial console ready */ 164#define GD_FLG_FULL_MALLOC_INIT 0x00200 /* Full malloc() is ready */ 165#define GD_FLG_SPL_INIT 0x00400 /* spl_init() has been called */ 166#define GD_FLG_SKIP_RELOC 0x00800 /* Don't relocate */ 167#define GD_FLG_RECORD 0x01000 /* Record console */ 168#define GD_FLG_ENV_DEFAULT 0x02000 /* Default variable flag */ 169#define GD_FLG_SPL_EARLY_INIT 0x04000 /* Early SPL init is done */ 170#define GD_FLG_LOG_READY 0x08000 /* Log system is ready for use */ 171#define GD_FLG_WDT_READY 0x10000 /* Watchdog is ready for use */ 172 173#endif /* __ASM_GENERIC_GBL_DATA_H */ 174