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/* * (C) Copyright 2002-2010 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ #ifndef __ASM_GBL_DATA_H #define __ASM_GBL_DATA_H #include <asm/regdef.h> /* * The following data structure is placed in some memory wich is * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or * some locked parts of the data cache) to allow for a minimum set of * global variables during system initialization (until we have set * up the memory controller so that we can use RAM). * * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t) */ typedef struct global_data { bd_t *bd; unsigned long flags; #ifdef CONFIG_JZSOC /* There are other clocks in the jz4740 */ unsigned long cpu_clk; /* CPU core clock */ unsigned long sys_clk; /* System bus clock */ unsigned long per_clk; /* Peripheral bus clock */ unsigned long mem_clk; /* Memory bus clock */ unsigned long dev_clk; /* Device clock */ /* "static data" needed by most of timer.c */ unsigned long tbl; unsigned long lastinc; #endif unsigned long baudrate; unsigned long have_console; /* serial_init() was called */ #ifdef CONFIG_PRE_CONSOLE_BUFFER unsigned long precon_buf_idx; /* Pre-Console buffer index */ #endif phys_size_t ram_size; /* RAM size */ unsigned long reloc_off; /* Relocation Offset */ unsigned long env_addr; /* Address of Environment struct */ unsigned long env_valid; /* Checksum of Environment valid? */ void **jt; /* jump table */ char env_buf[32]; /* buffer for getenv() before reloc. */ } gd_t; /* * Global Data Flags */ #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ #define GD_FLG_SILENT 0x00004 /* Silent mode */ #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ #define GD_FLG_ENV_READY 0x00080 /* Environment imported into hash table */ #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("k0") #endif /* __ASM_GBL_DATA_H */


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