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 #include <asm/regdef.h> 28 29 /* 30 * The following data structure is placed in some memory wich is 31 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or 32 * some locked parts of the data cache) to allow for a minimum set of 33 * global variables during system initialization (until we have set 34 * up the memory controller so that we can use RAM). 35 */ 36 37 typedef struct global_data { 38 bd_t *bd; 39 unsigned long flags; 40 #ifdef CONFIG_JZSOC 41 /* There are other clocks in the jz4740 */ 42 unsigned long cpu_clk; /* CPU core clock */ 43 unsigned long sys_clk; /* System bus clock */ 44 unsigned long per_clk; /* Peripheral bus clock */ 45 unsigned long mem_clk; /* Memory bus clock */ 46 unsigned long dev_clk; /* Device clock */ 47 /* "static data" needed by most of timer.c */ 48 unsigned long tbl; 49 unsigned long lastinc; 50 #endif 51 unsigned int baudrate; 52 unsigned long have_console; /* serial_init() was called */ 53 #ifdef CONFIG_PRE_CONSOLE_BUFFER 54 unsigned long precon_buf_idx; /* Pre-Console buffer index */ 55 #endif 56 phys_size_t ram_size; /* RAM size */ 57 unsigned long reloc_off; /* Relocation Offset */ 58 unsigned long env_addr; /* Address of Environment struct */ 59 unsigned long env_valid; /* Checksum of Environment valid? */ 60 void **jt; /* jump table */ 61 char env_buf[32]; /* buffer for getenv() before reloc. */ 62 } gd_t; 63 64 #include <asm-generic/global_data_flags.h> 65 66 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("k0") 67 68 #endif /* __ASM_GBL_DATA_H */ 69