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Simon Glass0e724032012-12-13 20:49:12 +00001/*
2 * Copyright (c) 2012 The Chromium OS Authors.
3 * (C) Copyright 2002-2010
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 *
Wolfgang Denkd79de1d2013-07-08 09:37:19 +02006 * SPDX-License-Identifier: GPL-2.0+
Simon Glass0e724032012-12-13 20:49:12 +00007 */
8
9#ifndef __ASM_GENERIC_GBL_DATA_H
10#define __ASM_GENERIC_GBL_DATA_H
11/*
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).
17 *
18 * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
19 *
20 * Each architecture has its own private fields. For now all are private
21 */
22
23#ifndef __ASSEMBLY__
24typedef struct global_data {
25 bd_t *bd;
26 unsigned long flags;
Simon Glass059c54f2013-03-05 14:40:05 +000027 unsigned int baudrate;
Simon Glass0e724032012-12-13 20:49:12 +000028 unsigned long cpu_clk; /* CPU clock in Hz! */
29 unsigned long bus_clk;
30 /* We cannot bracket this with CONFIG_PCI due to mpc5xxx */
31 unsigned long pci_clk;
32 unsigned long mem_clk;
33#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
34 unsigned long fb_base; /* Base address of framebuffer mem */
35#endif
36#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
37 unsigned long post_log_word; /* Record POST activities */
38 unsigned long post_log_res; /* success of POST test */
39 unsigned long post_init_f_time; /* When post_init_f started */
40#endif
41#ifdef CONFIG_BOARD_TYPES
42 unsigned long board_type;
43#endif
44 unsigned long have_console; /* serial_init() was called */
45#ifdef CONFIG_PRE_CONSOLE_BUFFER
46 unsigned long precon_buf_idx; /* Pre-Console buffer index */
47#endif
48#ifdef CONFIG_MODEM_SUPPORT
49 unsigned long do_mdm_init;
50 unsigned long be_quiet;
51#endif
52 unsigned long env_addr; /* Address of Environment struct */
53 unsigned long env_valid; /* Checksum of Environment valid? */
54
Simon Glass0e724032012-12-13 20:49:12 +000055 unsigned long ram_top; /* Top address of RAM used by U-Boot */
56
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 */
64 const void *fdt_blob; /* Our device tree, NULL if none */
Simon Glassc45e3592013-03-11 06:49:53 +000065 void *new_fdt; /* Relocated FDT */
66 unsigned long fdt_size; /* Space reserved for relocated FDT */
Simon Glass0e724032012-12-13 20:49:12 +000067 void **jt; /* jump table */
68 char env_buf[32]; /* buffer for getenv() before reloc. */
Simon Glass209a1a62013-06-11 11:14:42 -070069#ifdef CONFIG_TRACE
70 void *trace_buff; /* The trace buffer */
71#endif
Heiko Schochere7d9c4f2012-01-16 21:12:23 +000072#if defined(CONFIG_SYS_I2C)
73 int cur_i2c_bus; /* current used i2c bus */
74#endif
Simon Glass0e724032012-12-13 20:49:12 +000075 struct arch_global_data arch; /* architecture-specific data */
76} gd_t;
77#endif
78
79/*
80 * Global Data Flags
81 */
82#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
83#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
84#define GD_FLG_SILENT 0x00004 /* Silent mode */
85#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
86#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
87#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
88#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
89#define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */
90
91#endif /* __ASM_GENERIC_GBL_DATA_H */