| Daniel Hellstrom | c2f02da | 2008-03-28 09:47:00 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * (C) Copyright 2002 |
| 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 4 | * |
| 5 | * (C) Copyright 2007 |
| 6 | * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com. |
| 7 | * |
| 8 | * See file CREDITS for list of people who contributed to this |
| 9 | * project. |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU General Public License as |
| 13 | * published by the Free Software Foundation; either version 2 of |
| 14 | * the License, or (at your option) any later version. |
| 15 | * |
| 16 | * This program is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU General Public License for more details. |
| 20 | * |
| 21 | * You should have received a copy of the GNU General Public License |
| 22 | * along with this program; if not, write to the Free Software |
| 23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 24 | * MA 02111-1307 USA |
| 25 | */ |
| 26 | |
| 27 | #ifndef __ASM_GBL_DATA_H |
| 28 | #define __ASM_GBL_DATA_H |
| 29 | |
| 30 | #include "asm/types.h" |
| 31 | |
| 32 | /* |
| 33 | * The following data structure is placed in some memory wich is |
| 34 | * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or |
| 35 | * some locked parts of the data cache) to allow for a minimum set of |
| 36 | * global variables during system initialization (until we have set |
| 37 | * up the memory controller so that we can use RAM). |
| 38 | * |
| 39 | * Keep it *SMALL* and remember to set CFG_GBL_DATA_SIZE > sizeof(gd_t) |
| 40 | */ |
| 41 | |
| 42 | typedef struct global_data { |
| 43 | bd_t *bd; |
| 44 | unsigned long flags; |
| 45 | unsigned long baudrate; |
| 46 | unsigned long cpu_clk; /* CPU clock in Hz! */ |
| 47 | unsigned long bus_clk; |
| 48 | |
| 49 | unsigned long ram_size; /* RAM size */ |
| 50 | unsigned long reloc_off; /* Relocation Offset */ |
| 51 | unsigned long reset_status; /* reset status register at boot */ |
| 52 | unsigned long env_addr; /* Address of Environment struct */ |
| 53 | unsigned long env_valid; /* Checksum of Environment valid? */ |
| 54 | unsigned long have_console; /* serial_init() was called */ |
| 55 | |
| 56 | #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) |
| 57 | unsigned long fb_base; /* Base address of framebuffer memory */ |
| 58 | #endif |
| 59 | #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER) |
| 60 | unsigned long post_log_word; /* Record POST activities */ |
| 61 | unsigned long post_init_f_time; /* When post_init_f started */ |
| 62 | #endif |
| 63 | #ifdef CONFIG_BOARD_TYPES |
| 64 | unsigned long board_type; |
| 65 | #endif |
| 66 | #ifdef CONFIG_MODEM_SUPPORT |
| 67 | unsigned long do_mdm_init; |
| 68 | unsigned long be_quiet; |
| 69 | #endif |
| 70 | #ifdef CONFIG_LWMON |
| 71 | unsigned long kbd_status; |
| 72 | #endif |
| 73 | void **jt; /* jump table */ |
| 74 | } gd_t; |
| 75 | |
| 76 | /* |
| 77 | * Global Data Flags |
| 78 | */ |
| 79 | #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ |
| 80 | #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ |
| 81 | #define GD_FLG_SILENT 0x00004 /* Silent mode */ |
| 82 | |
| 83 | #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("%g7") |
| 84 | |
| 85 | #endif /* __ASM_GBL_DATA_H */ |