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 * 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 34 typedef struct global_data { 35 bd_t *bd; 36 unsigned long flags; 37 unsigned int baudrate; 38 unsigned long cpu_clk; /* CPU clock in Hz! */ 39 unsigned long bus_clk; 40 #ifdef CONFIG_PCI 41 unsigned long pci_clk; 42 #endif 43 #ifdef CONFIG_EXTRA_CLOCK 44 unsigned long inp_clk; 45 unsigned long vco_clk; 46 unsigned long flb_clk; 47 #endif 48 #ifdef CONFIG_FSL_I2C 49 unsigned long i2c1_clk; 50 unsigned long i2c2_clk; 51 #endif 52 phys_size_t ram_size; /* RAM size */ 53 unsigned long reloc_off; /* Relocation Offset */ 54 unsigned long reset_status; /* reset status register at boot */ 55 unsigned long env_addr; /* Address of Environment struct */ 56 unsigned long env_valid; /* Checksum of Environment valid? */ 57 unsigned long have_console; /* serial_init() was called */ 58 #ifdef CONFIG_PRE_CONSOLE_BUFFER 59 unsigned long precon_buf_idx; /* Pre-Console buffer index */ 60 #endif 61 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO) 62 unsigned long fb_base; /* Base addr of framebuffer memory */ 63 #endif 64 #ifdef CONFIG_BOARD_TYPES 65 unsigned long board_type; 66 #endif 67 void **jt; /* Standalone app jump table */ 68 char env_buf[32]; /* buffer for getenv() before reloc. */ 69 } gd_t; 70 71 #include <asm-generic/global_data_flags.h> 72 73 #if 0 74 extern gd_t *global_data; 75 #define DECLARE_GLOBAL_DATA_PTR gd_t *gd = global_data 76 #else 77 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("d7") 78 #endif 79 80 #endif /* __ASM_GBL_DATA_H */ 81