1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (c) 2012 The Chromium OS Authors.
4 * (C) Copyright 2002-2010
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 #ifndef __ASM_GENERIC_GBL_DATA_H
9 #define __ASM_GENERIC_GBL_DATA_H
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).
17 * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
19 * 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) || defined(CONFIG_DM_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_prio; /* Priority of the loaded environment */
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 */
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 */
72 struct udevice *timer; /* Timer instance for Driver Model */
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 */
79 struct device_node *of_root;
82 #if CONFIG_IS_ENABLED(MULTI_DTB_FIT)
83 const void *multi_dtb_fit; /* uncompressed multi-dtb FIT image */
85 struct jt_funcs *jt; /* jump table */
86 char env_buf[32]; /* buffer for env_get() before reloc. */
88 void *trace_buff; /* The trace buffer */
90 #if defined(CONFIG_SYS_I2C)
91 int cur_i2c_bus; /* current used i2c bus */
93 unsigned int timebase_h;
94 unsigned int timebase_l;
95 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
96 unsigned long malloc_base; /* base address of early malloc() */
97 unsigned long malloc_limit; /* limit address */
98 unsigned long malloc_ptr; /* current address */
101 struct pci_controller *hose; /* PCI hose for early use */
102 phys_addr_t pci_ram_top; /* top of region accessible to PCI */
104 #ifdef CONFIG_PCI_BOOTDELAY
107 struct udevice *cur_serial_dev; /* current serial device */
108 struct arch_global_data arch; /* architecture-specific data */
109 #ifdef CONFIG_CONSOLE_RECORD
110 struct membuff console_out; /* console output */
111 struct membuff console_in; /* console input */
113 #ifdef CONFIG_DM_VIDEO
114 ulong video_top; /* Top of video frame buffer area */
115 ulong video_bottom; /* Bottom of video frame buffer area */
117 #ifdef CONFIG_BOOTSTAGE
118 struct bootstage_data *bootstage; /* Bootstage information */
119 struct bootstage_data *new_bootstage; /* Relocated bootstage info */
122 int log_drop_count; /* Number of dropped log messages */
123 int default_log_level; /* For devices with no filters */
124 struct list_head log_head; /* List of struct log_device */
125 int log_fmt; /* Mask containing log format info */
127 #if CONFIG_IS_ENABLED(BLOBLIST)
128 struct bloblist_hdr *bloblist; /* Bloblist information */
129 struct bloblist_hdr *new_bloblist; /* Relocated blolist info */
131 struct spl_handoff *spl_handoff;
134 #if defined(CONFIG_TRANSLATION_OFFSET)
135 fdt_addr_t translation_offset; /* optional translation offset */
137 #if CONFIG_IS_ENABLED(WDT)
138 struct udevice *watchdog_dev;
143 #ifdef CONFIG_BOARD_TYPES
144 #define gd_board_type() gd->board_type
146 #define gd_board_type() 0
152 #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
153 #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
154 #define GD_FLG_SILENT 0x00004 /* Silent mode */
155 #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
156 #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
157 #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
158 #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
159 #define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */
160 #define GD_FLG_SERIAL_READY 0x00100 /* Pre-reloc serial console ready */
161 #define GD_FLG_FULL_MALLOC_INIT 0x00200 /* Full malloc() is ready */
162 #define GD_FLG_SPL_INIT 0x00400 /* spl_init() has been called */
163 #define GD_FLG_SKIP_RELOC 0x00800 /* Don't relocate */
164 #define GD_FLG_RECORD 0x01000 /* Record console */
165 #define GD_FLG_ENV_DEFAULT 0x02000 /* Default variable flag */
166 #define GD_FLG_SPL_EARLY_INIT 0x04000 /* Early SPL init is done */
167 #define GD_FLG_LOG_READY 0x08000 /* Log system is ready for use */
168 #define GD_FLG_WDT_READY 0x10000 /* Watchdog is ready for use */
169 #define GD_FLG_SKIP_LL_INIT 0x20000 /* Don't perform low-level init */
171 #endif /* __ASM_GENERIC_GBL_DATA_H */