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git.ipfire.org Git - people/ms/u-boot.git/blob - include/asm-generic/global_data.h
2 * Copyright (c) 2012 The Chromium OS Authors.
3 * (C) Copyright 2002-2010
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * SPDX-License-Identifier: GPL-2.0+
9 #ifndef __ASM_GENERIC_GBL_DATA_H
10 #define __ASM_GENERIC_GBL_DATA_H
12 * The following data structure is placed in some memory which is
13 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
14 * some locked parts of the data cache) to allow for a minimum set of
15 * global variables during system initialization (until we have set
16 * up the memory controller so that we can use RAM).
18 * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
20 * Each architecture has its own private fields. For now all are private
25 #include <linux/list.h>
27 typedef struct global_data
{
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)
37 unsigned long fb_base
; /* Base address of framebuffer mem */
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 */
44 #ifdef CONFIG_BOARD_TYPES
45 unsigned long board_type
;
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 */
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_location
;
56 unsigned long ram_top
; /* Top address of RAM used by U-Boot */
57 unsigned long relocaddr
; /* Start address of U-Boot in RAM */
58 phys_size_t ram_size
; /* RAM size */
59 unsigned long mon_len
; /* monitor len */
60 unsigned long irq_sp
; /* irq stack pointer */
61 unsigned long start_addr_sp
; /* start_addr_stackpointer */
62 unsigned long reloc_off
;
63 struct global_data
*new_gd
; /* relocated global data */
66 struct udevice
*dm_root
; /* Root instance for Driver Model */
67 struct udevice
*dm_root_f
; /* Pre-relocation root instance */
68 struct list_head uclass_root
; /* Head of core tree */
71 struct udevice
*timer
; /* Timer instance for Driver Model */
74 const void *fdt_blob
; /* Our device tree, NULL if none */
75 void *new_fdt
; /* Relocated FDT */
76 unsigned long fdt_size
; /* Space reserved for relocated FDT */
78 struct device_node
*of_root
;
80 struct jt_funcs
*jt
; /* jump table */
81 char env_buf
[32]; /* buffer for env_get() before reloc. */
83 void *trace_buff
; /* The trace buffer */
85 #if defined(CONFIG_SYS_I2C)
86 int cur_i2c_bus
; /* current used i2c bus */
88 #ifdef CONFIG_SYS_I2C_MXC
91 unsigned int timebase_h
;
92 unsigned int timebase_l
;
93 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
94 unsigned long malloc_base
; /* base address of early malloc() */
95 unsigned long malloc_limit
; /* limit address */
96 unsigned long malloc_ptr
; /* current address */
99 struct pci_controller
*hose
; /* PCI hose for early use */
100 phys_addr_t pci_ram_top
; /* top of region accessible to PCI */
102 #ifdef CONFIG_PCI_BOOTDELAY
105 struct udevice
*cur_serial_dev
; /* current serial device */
106 struct arch_global_data arch
; /* architecture-specific data */
107 #ifdef CONFIG_CONSOLE_RECORD
108 struct membuff console_out
; /* console output */
109 struct membuff console_in
; /* console input */
111 #ifdef CONFIG_DM_VIDEO
112 ulong video_top
; /* Top of video frame buffer area */
113 ulong video_bottom
; /* Bottom of video frame buffer area */
115 #ifdef CONFIG_BOOTSTAGE
116 struct bootstage_data
*bootstage
; /* Bootstage information */
117 struct bootstage_data
*new_bootstage
; /* Relocated bootstage info */
120 int log_drop_count
; /* Number of dropped log messages */
121 int default_log_level
; /* For devices with no filters */
122 struct list_head log_head
; /* List of struct log_device */
123 int log_fmt
; /* Mask containing log format info */
128 #ifdef CONFIG_BOARD_TYPES
129 #define gd_board_type() gd->board_type
131 #define gd_board_type() 0
135 * Global Data Flags - the top 16 bits are reserved for arch-specific flags
137 #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
138 #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
139 #define GD_FLG_SILENT 0x00004 /* Silent mode */
140 #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
141 #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
142 #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
143 #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
144 #define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */
145 #define GD_FLG_SERIAL_READY 0x00100 /* Pre-reloc serial console ready */
146 #define GD_FLG_FULL_MALLOC_INIT 0x00200 /* Full malloc() is ready */
147 #define GD_FLG_SPL_INIT 0x00400 /* spl_init() has been called */
148 #define GD_FLG_SKIP_RELOC 0x00800 /* Don't relocate */
149 #define GD_FLG_RECORD 0x01000 /* Record console */
150 #define GD_FLG_ENV_DEFAULT 0x02000 /* Default variable flag */
151 #define GD_FLG_SPL_EARLY_INIT 0x04000 /* Early SPL init is done */
152 #define GD_FLG_LOG_READY 0x08000 /* Log system is ready for use */
154 #endif /* __ASM_GENERIC_GBL_DATA_H */