blob: cc369fcdfb9e3c7a628bb53a7a713d0d6a69f832 [file] [log] [blame]
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__
Simon Glassdd6ab882014-02-26 15:59:18 -070024#include <linux/list.h>
25
Simon Glass0e724032012-12-13 20:49:12 +000026typedef struct global_data {
27 bd_t *bd;
28 unsigned long flags;
Simon Glass059c54f2013-03-05 14:40:05 +000029 unsigned int baudrate;
Simon Glass0e724032012-12-13 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 Glass0e724032012-12-13 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 Glassdd6ab882014-02-26 15:59:18 -070066
67#ifdef CONFIG_DM
Simon Glassa730c5d2014-07-23 06:55:04 -060068 struct udevice *dm_root; /* Root instance for Driver Model */
69 struct udevice *dm_root_f; /* Pre-relocation root instance */
Simon Glassdd6ab882014-02-26 15:59:18 -070070 struct list_head uclass_root; /* Head of core tree */
71#endif
72
Simon Glass0e724032012-12-13 20:49:12 +000073 const void *fdt_blob; /* Our device tree, NULL if none */
Simon Glassc45e3592013-03-11 06:49:53 +000074 void *new_fdt; /* Relocated FDT */
75 unsigned long fdt_size; /* Space reserved for relocated FDT */
Martin Dorwigcb2c2862015-01-26 15:22:54 -070076 struct jt_funcs *jt; /* jump table */
Simon Glass0e724032012-12-13 20:49:12 +000077 char env_buf[32]; /* buffer for getenv() before reloc. */
Simon Glass209a1a62013-06-11 11:14:42 -070078#ifdef CONFIG_TRACE
79 void *trace_buff; /* The trace buffer */
80#endif
Heiko Schochere7d9c4f2012-01-16 21:12:23 +000081#if defined(CONFIG_SYS_I2C)
82 int cur_i2c_bus; /* current used i2c bus */
83#endif
York Suna4c02662014-02-10 14:02:52 -080084#ifdef CONFIG_SYS_I2C_MXC
85 void *srdata[10];
86#endif
Rob Herring57156942013-10-04 10:22:41 -050087 unsigned long timebase_h;
88 unsigned long timebase_l;
Simon Glass863e4042014-07-10 22:23:28 -060089#ifdef CONFIG_SYS_MALLOC_F_LEN
90 unsigned long malloc_base; /* base address of early malloc() */
91 unsigned long malloc_limit; /* limit address */
92 unsigned long malloc_ptr; /* current address */
93#endif
Bin Mengf1b81fc2014-12-30 22:53:21 +080094#ifdef CONFIG_PCI
95 struct pci_controller *hose; /* PCI hose for early use */
Simon Glass5888bd22015-07-03 18:28:27 -060096 phys_addr_t pci_ram_top; /* top of region accessible to PCI */
Bin Mengf1b81fc2014-12-30 22:53:21 +080097#endif
98#ifdef CONFIG_PCI_BOOTDELAY
99 int pcidelay_done;
100#endif
Simon Glassa4c2e132014-11-10 18:00:20 -0700101 struct udevice *cur_serial_dev; /* current serial device */
Simon Glass862396c2015-08-10 20:44:29 -0600102 /* arch-specific data */
103 struct arch_global_data arch __attribute__((aligned(16)));
Simon Glass0e724032012-12-13 20:49:12 +0000104} gd_t;
105#endif
106
107/*
Simon Glassfeb00272015-07-31 09:31:27 -0600108 * Global Data Flags - the top 16 bits are reserved for arch-specific flags
Simon Glass0e724032012-12-13 20:49:12 +0000109 */
110#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
111#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
112#define GD_FLG_SILENT 0x00004 /* Silent mode */
113#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
114#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
115#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
116#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
117#define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */
Simon Glassb9d5f6b2014-07-23 06:55:07 -0600118#define GD_FLG_SERIAL_READY 0x00100 /* Pre-reloc serial console ready */
Simon Glass94890462014-11-10 17:16:43 -0700119#define GD_FLG_FULL_MALLOC_INIT 0x00200 /* Full malloc() is ready */
Simon Glassfa2a4db2015-06-23 15:39:10 -0600120#define GD_FLG_SPL_INIT 0x00400 /* spl_init() has been called */
Simon Glass00dd17a2015-08-04 12:33:39 -0600121#define GD_FLG_SKIP_RELOC 0x00800 /* Don't relocate */
Simon Glass0e724032012-12-13 20:49:12 +0000122
123#endif /* __ASM_GENERIC_GBL_DATA_H */