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50b1fa39 SG |
1 | /* |
2 | * Copyright (c) 2012 The Chromium OS Authors. | |
3 | * (C) Copyright 2002-2010 | |
4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
5 | * | |
1a459660 | 6 | * SPDX-License-Identifier: GPL-2.0+ |
50b1fa39 SG |
7 | */ |
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__ | |
9854a874 | 24 | #include <membuff.h> |
6494d708 SG |
25 | #include <linux/list.h> |
26 | ||
50b1fa39 SG |
27 | typedef struct global_data { |
28 | bd_t *bd; | |
29 | unsigned long flags; | |
b5bec884 | 30 | unsigned int baudrate; |
50b1fa39 SG |
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 */ | |
38 | #endif | |
39 | #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) | |
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 */ | |
43 | #endif | |
44 | #ifdef CONFIG_BOARD_TYPES | |
45 | unsigned long board_type; | |
46 | #endif | |
47 | unsigned long have_console; /* serial_init() was called */ | |
48 | #ifdef CONFIG_PRE_CONSOLE_BUFFER | |
49 | unsigned long precon_buf_idx; /* Pre-Console buffer index */ | |
50 | #endif | |
51 | #ifdef CONFIG_MODEM_SUPPORT | |
52 | unsigned long do_mdm_init; | |
53 | unsigned long be_quiet; | |
54 | #endif | |
55 | unsigned long env_addr; /* Address of Environment struct */ | |
56 | unsigned long env_valid; /* Checksum of Environment valid? */ | |
57 | ||
50b1fa39 SG |
58 | unsigned long ram_top; /* Top address of RAM used by U-Boot */ |
59 | ||
60 | unsigned long relocaddr; /* Start address of U-Boot in RAM */ | |
61 | phys_size_t ram_size; /* RAM size */ | |
e8149522 YS |
62 | #ifdef CONFIG_SYS_MEM_RESERVE_SECURE |
63 | #define MEM_RESERVE_SECURE_SECURED 0x1 | |
64 | #define MEM_RESERVE_SECURE_MAINTAINED 0x2 | |
65 | #define MEM_RESERVE_SECURE_ADDR_MASK (~0x3) | |
66 | /* | |
67 | * Secure memory addr | |
68 | * This variable needs maintenance if the RAM base is not zero, | |
69 | * or if RAM splits into non-consecutive banks. It also has a | |
70 | * flag indicating the secure memory is marked as secure by MMU. | |
71 | * Flags used: 0x1 secured | |
72 | * 0x2 maintained | |
73 | */ | |
74 | phys_addr_t secure_ram; | |
75 | #endif | |
50b1fa39 SG |
76 | unsigned long mon_len; /* monitor len */ |
77 | unsigned long irq_sp; /* irq stack pointer */ | |
78 | unsigned long start_addr_sp; /* start_addr_stackpointer */ | |
79 | unsigned long reloc_off; | |
80 | struct global_data *new_gd; /* relocated global data */ | |
6494d708 SG |
81 | |
82 | #ifdef CONFIG_DM | |
ab7cd627 SG |
83 | struct udevice *dm_root; /* Root instance for Driver Model */ |
84 | struct udevice *dm_root_f; /* Pre-relocation root instance */ | |
6494d708 SG |
85 | struct list_head uclass_root; /* Head of core tree */ |
86 | #endif | |
c8a7ba9e TC |
87 | #ifdef CONFIG_TIMER |
88 | struct udevice *timer; /* Timer instance for Driver Model */ | |
89 | #endif | |
6494d708 | 90 | |
50b1fa39 | 91 | const void *fdt_blob; /* Our device tree, NULL if none */ |
1938f4a5 SG |
92 | void *new_fdt; /* Relocated FDT */ |
93 | unsigned long fdt_size; /* Space reserved for relocated FDT */ | |
49cad547 | 94 | struct jt_funcs *jt; /* jump table */ |
50b1fa39 | 95 | char env_buf[32]; /* buffer for getenv() before reloc. */ |
71c52dba SG |
96 | #ifdef CONFIG_TRACE |
97 | void *trace_buff; /* The trace buffer */ | |
385c9ef5 HS |
98 | #endif |
99 | #if defined(CONFIG_SYS_I2C) | |
100 | int cur_i2c_bus; /* current used i2c bus */ | |
dec1861b YS |
101 | #endif |
102 | #ifdef CONFIG_SYS_I2C_MXC | |
103 | void *srdata[10]; | |
71c52dba | 104 | #endif |
8dfafdde RH |
105 | unsigned long timebase_h; |
106 | unsigned long timebase_l; | |
d59476b6 SG |
107 | #ifdef CONFIG_SYS_MALLOC_F_LEN |
108 | unsigned long malloc_base; /* base address of early malloc() */ | |
109 | unsigned long malloc_limit; /* limit address */ | |
110 | unsigned long malloc_ptr; /* current address */ | |
8f9052fd BM |
111 | #endif |
112 | #ifdef CONFIG_PCI | |
113 | struct pci_controller *hose; /* PCI hose for early use */ | |
b9da5086 | 114 | phys_addr_t pci_ram_top; /* top of region accessible to PCI */ |
8f9052fd BM |
115 | #endif |
116 | #ifdef CONFIG_PCI_BOOTDELAY | |
117 | int pcidelay_done; | |
d59476b6 | 118 | #endif |
469a579d | 119 | struct udevice *cur_serial_dev; /* current serial device */ |
2212e69b | 120 | struct arch_global_data arch; /* architecture-specific data */ |
9854a874 SG |
121 | #ifdef CONFIG_CONSOLE_RECORD |
122 | struct membuff console_out; /* console output */ | |
123 | struct membuff console_in; /* console input */ | |
124 | #endif | |
50b1fa39 SG |
125 | } gd_t; |
126 | #endif | |
127 | ||
128 | /* | |
b0b403d9 | 129 | * Global Data Flags - the top 16 bits are reserved for arch-specific flags |
50b1fa39 SG |
130 | */ |
131 | #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ | |
132 | #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ | |
133 | #define GD_FLG_SILENT 0x00004 /* Silent mode */ | |
134 | #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ | |
135 | #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ | |
136 | #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ | |
137 | #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ | |
138 | #define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */ | |
093f79ab | 139 | #define GD_FLG_SERIAL_READY 0x00100 /* Pre-reloc serial console ready */ |
c9356be3 | 140 | #define GD_FLG_FULL_MALLOC_INIT 0x00200 /* Full malloc() is ready */ |
070d00b8 | 141 | #define GD_FLG_SPL_INIT 0x00400 /* spl_init() has been called */ |
f05ad9ba | 142 | #define GD_FLG_SKIP_RELOC 0x00800 /* Don't relocate */ |
9854a874 | 143 | #define GD_FLG_RECORD 0x01000 /* Record console */ |
50b1fa39 SG |
144 | |
145 | #endif /* __ASM_GENERIC_GBL_DATA_H */ |