blob: 707400e84793daf2166dff8d249e3cc6681a332c [file] [log] [blame]
Simon Glass50b1fa32012-12-13 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 Denk1a459662013-07-08 09:37:19 +02006 * SPDX-License-Identifier: GPL-2.0+
Simon Glass50b1fa32012-12-13 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__
Simon Glass6494d702014-02-26 15:59:18 -070024#include <linux/list.h>
25
Simon Glass50b1fa32012-12-13 20:49:12 +000026typedef struct global_data {
27 bd_t *bd;
28 unsigned long flags;
Simon Glassb5bec882013-03-05 14:40:05 +000029 unsigned int baudrate;
Simon Glass50b1fa32012-12-13 20:49:12 +000030 unsigned long cpu_clk; /* CPU clock in Hz! */
31 unsigned long bus_clk;
32 /* We cannot bracket this with CONFIG_PCI due to mpc5xxx */
33 unsigned long pci_clk;
34 unsigned long mem_clk;
35#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
36 unsigned long fb_base; /* Base address of framebuffer mem */
37#endif
38#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
39 unsigned long post_log_word; /* Record POST activities */
40 unsigned long post_log_res; /* success of POST test */
41 unsigned long post_init_f_time; /* When post_init_f started */
42#endif
43#ifdef CONFIG_BOARD_TYPES
44 unsigned long board_type;
45#endif
46 unsigned long have_console; /* serial_init() was called */
47#ifdef CONFIG_PRE_CONSOLE_BUFFER
48 unsigned long precon_buf_idx; /* Pre-Console buffer index */
49#endif
50#ifdef CONFIG_MODEM_SUPPORT
51 unsigned long do_mdm_init;
52 unsigned long be_quiet;
53#endif
54 unsigned long env_addr; /* Address of Environment struct */
55 unsigned long env_valid; /* Checksum of Environment valid? */
56
Simon Glass50b1fa32012-12-13 20:49:12 +000057 unsigned long ram_top; /* Top address of RAM used by U-Boot */
58
59 unsigned long relocaddr; /* Start address of U-Boot in RAM */
60 phys_size_t ram_size; /* RAM size */
61 unsigned long mon_len; /* monitor len */
62 unsigned long irq_sp; /* irq stack pointer */
63 unsigned long start_addr_sp; /* start_addr_stackpointer */
64 unsigned long reloc_off;
65 struct global_data *new_gd; /* relocated global data */
Simon Glass6494d702014-02-26 15:59:18 -070066
67#ifdef CONFIG_DM
68 struct device *dm_root; /* Root instance for Driver Model */
69 struct list_head uclass_root; /* Head of core tree */
70#endif
71
Simon Glass50b1fa32012-12-13 20:49:12 +000072 const void *fdt_blob; /* Our device tree, NULL if none */
Simon Glass1938f4a2013-03-11 06:49:53 +000073 void *new_fdt; /* Relocated FDT */
74 unsigned long fdt_size; /* Space reserved for relocated FDT */
Simon Glass50b1fa32012-12-13 20:49:12 +000075 void **jt; /* jump table */
76 char env_buf[32]; /* buffer for getenv() before reloc. */
Simon Glass71c52db2013-06-11 11:14:42 -070077#ifdef CONFIG_TRACE
78 void *trace_buff; /* The trace buffer */
79#endif
Heiko Schocher385c9ef2012-01-16 21:12:23 +000080#if defined(CONFIG_SYS_I2C)
81 int cur_i2c_bus; /* current used i2c bus */
82#endif
Rob Herring8dfafdd2013-10-04 10:22:41 -050083 unsigned long timebase_h;
84 unsigned long timebase_l;
Simon Glass50b1fa32012-12-13 20:49:12 +000085 struct arch_global_data arch; /* architecture-specific data */
86} gd_t;
87#endif
88
89/*
90 * Global Data Flags
91 */
92#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
93#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
94#define GD_FLG_SILENT 0x00004 /* Silent mode */
95#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
96#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
97#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
98#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
99#define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */
100
101#endif /* __ASM_GENERIC_GBL_DATA_H */