projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 2262cfee | 1 | /* |
| 91a76751 | 2 | * (C) Copyright 2002-2010 |
| 2262cfee WD |
3 | * Wolfgang Denk, DENX Software Engineering, [email protected]. |
| 4 | * | |
| 5 | * See file CREDITS for list of people who contributed to this | |
| 6 | * project. | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU General Public License as | |
| 10 | * published by the Free Software Foundation; either version 2 of | |
| 11 | * the License, or (at your option) any later version. | |
| 12 | * | |
| 13 | * This program is distributed in the hope that it will be useful, | |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 16 | * GNU General Public License for more details. | |
| 17 | * | |
| 18 | * You should have received a copy of the GNU General Public License | |
| 19 | * along with this program; if not, write to the Free Software | |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
| 21 | * MA 02111-1307 USA | |
| 22 | */ | |
| 23 | ||
| 24 | #ifndef __ASM_GBL_DATA_H | |
| 25 | #define __ASM_GBL_DATA_H | |
| 26 | /* | |
| 27 | * The following data structure is placed in some memory wich is | |
| 28 | * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or | |
| 29 | * some locked parts of the data cache) to allow for a minimum set of | |
| 30 | * global variables during system initialization (until we have set | |
| 31 | * up the memory controller so that we can use RAM). | |
| 2262cfee WD |
32 | */ |
| 33 | ||
| 161b3589 GR |
34 | #ifndef __ASSEMBLY__ |
| 35 | ||
| de47cbe6 | 36 | typedef struct global_data { |
| 9e6c572f GR |
37 | /* NOTE: gd_addr MUST be first member of struct global_data! */ |
| 38 | unsigned long gd_addr; /* Location of Global Data */ | |
| 2262cfee WD |
39 | bd_t *bd; |
| 40 | unsigned long flags; | |
| 55f97c1b | 41 | unsigned int baudrate; |
| 2262cfee | 42 | unsigned long have_console; /* serial_init() was called */ |
| 9558b48a GR |
43 | #ifdef CONFIG_PRE_CONSOLE_BUFFER |
| 44 | unsigned long precon_buf_idx; /* Pre-Console buffer index */ | |
| 45 | #endif | |
| 2262cfee | 46 | unsigned long reloc_off; /* Relocation Offset */ |
| c868af3e | 47 | unsigned long load_off; /* Load Offset */ |
| 2262cfee WD |
48 | unsigned long env_addr; /* Address of Environment struct */ |
| 49 | unsigned long env_valid; /* Checksum of Environment valid? */ | |
| 50 | unsigned long cpu_clk; /* CPU clock in Hz! */ | |
| 51 | unsigned long bus_clk; | |
| 71a54049 GR |
52 | unsigned long relocaddr; /* Start address of U-Boot in RAM */ |
| 53 | unsigned long start_addr_sp; /* start_addr_stackpointer */ | |
| 9e6c572f GR |
54 | unsigned long gdt_addr; /* Location of GDT */ |
| 55 | unsigned long new_gd_addr; /* New location of Global Data */ | |
| b57ca3e1 | 56 | phys_size_t ram_size; /* RAM size */ |
| 2262cfee | 57 | unsigned long reset_status; /* reset status register at boot */ |
| 27b207fd | 58 | void **jt; /* jump table */ |
| 91a76751 | 59 | char env_buf[32]; /* buffer for getenv() before reloc. */ |
| 2262cfee WD |
60 | } gd_t; |
| 61 | ||
| 9e6c572f GR |
62 | static inline gd_t *get_fs_gd_ptr(void) |
| 63 | { | |
| 64 | gd_t *gd_ptr; | |
| 65 | ||
| 66 | asm volatile("fs movl 0, %0\n" : "=r" (gd_ptr)); | |
| 67 | ||
| 68 | return gd_ptr; | |
| 69 | } | |
| 70 | ||
| 71 | #define gd get_fs_gd_ptr() | |
| 161b3589 GR |
72 | |
| 73 | #endif | |
| 74 | ||
| 47fde91f | 75 | #include <asm-generic/global_data_flags.h> |
| c81b26be | 76 | |
| 3ef96ded | 77 | #define DECLARE_GLOBAL_DATA_PTR |
| 2262cfee WD |
78 | |
| 79 | #endif /* __ASM_GBL_DATA_H */ |