1 /* 2 * (C) Copyright 2002 - 2010 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 /* Architecture-specific global data */ 28 struct arch_global_data { 29 }; 30 31 /* 32 * The following data structure is placed in some memory wich is 33 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or 34 * some locked parts of the data cache) to allow for a minimum set of 35 * global variables during system initialization (until we have set 36 * up the memory controller so that we can use RAM). 37 */ 38 39 typedef struct global_data { 40 bd_t *bd; 41 unsigned long flags; 42 unsigned int baudrate; 43 unsigned long cpu_clk; /* CPU clock in Hz! */ 44 unsigned long bus_clk; 45 #ifdef CONFIG_PCI 46 unsigned long pci_clk; 47 #endif 48 #ifdef CONFIG_EXTRA_CLOCK 49 unsigned long inp_clk; 50 unsigned long vco_clk; 51 unsigned long flb_clk; 52 #endif 53 #ifdef CONFIG_FSL_I2C 54 unsigned long i2c1_clk; 55 unsigned long i2c2_clk; 56 #endif 57 phys_size_t ram_size; /* RAM size */ 58 unsigned long reloc_off; /* Relocation Offset */ 59 unsigned long reset_status; /* reset status register at boot */ 60 unsigned long env_addr; /* Address of Environment struct */ 61 unsigned long env_valid; /* Checksum of Environment valid? */ 62 unsigned long have_console; /* serial_init() was called */ 63 #ifdef CONFIG_PRE_CONSOLE_BUFFER 64 unsigned long precon_buf_idx; /* Pre-Console buffer index */ 65 #endif 66 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) 67 unsigned long fb_base; /* Base addr of framebuffer memory */ 68 #endif 69 #ifdef CONFIG_BOARD_TYPES 70 unsigned long board_type; 71 #endif 72 void **jt; /* Standalone app jump table */ 73 char env_buf[32]; /* buffer for getenv() before reloc. */ 74 struct arch_global_data arch; /* architecture-specific data */ 75 } gd_t; 76 77 #include <asm-generic/global_data_flags.h> 78 79 #if 0 80 extern gd_t *global_data; 81 #define DECLARE_GLOBAL_DATA_PTR gd_t *gd = global_data 82 #else 83 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("d7") 84 #endif 85 86 #endif /* __ASM_GBL_DATA_H */ 87