1 /* 2 * (C) Copyright 2002 - 2003 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 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). 32 * 33 * Keep it *SMALL* and remember to set CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t) 34 */ 35 36 typedef struct global_data { 37 bd_t *bd; 38 unsigned long flags; 39 unsigned long baudrate; 40 unsigned long cpu_clk; /* CPU clock in Hz! */ 41 unsigned long bus_clk; 42 #ifdef CONFIG_PCI 43 unsigned long pci_clk; 44 #endif 45 #ifdef CONFIG_EXTRA_CLOCK 46 unsigned long inp_clk; 47 unsigned long vco_clk; 48 unsigned long flb_clk; 49 #endif 50 #ifdef CONFIG_FSL_I2C 51 unsigned long i2c1_clk; 52 unsigned long i2c2_clk; 53 #endif 54 phys_size_t ram_size; /* RAM size */ 55 unsigned long reloc_off; /* Relocation Offset */ 56 unsigned long reset_status; /* reset status register at boot */ 57 unsigned long env_addr; /* Address of Environment struct */ 58 unsigned long env_valid; /* Checksum of Environment valid? */ 59 unsigned long have_console; /* serial_init() was called */ 60 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) 61 unsigned long fb_base; /* Base addr of framebuffer memory */ 62 #endif 63 #ifdef CONFIG_BOARD_TYPES 64 unsigned long board_type; 65 #endif 66 void **jt; /* Standalone app jump table */ 67 } gd_t; 68 69 /* 70 * Global Data Flags 71 */ 72 #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ 73 #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ 74 #define GD_FLG_SILENT 0x00004 /* Silent mode */ 75 #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ 76 #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ 77 #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ 78 #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ 79 80 #if 0 81 extern gd_t *global_data; 82 #define DECLARE_GLOBAL_DATA_PTR gd_t *gd = global_data 83 #else 84 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("d7") 85 #endif 86 87 #endif /* __ASM_GBL_DATA_H */ 88