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    /*
     * Copyright (c) 2012 The Chromium OS Authors.
     * (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_GENERIC_GBL_DATA_H
    #define __ASM_GENERIC_GBL_DATA_H
    /*
     * The following data structure is placed in some memory which 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)
     *
     * Each architecture has its own private fields. For now all are private
     */
    
    #ifndef __ASSEMBLY__
    typedef struct global_data {
    	bd_t *bd;
    	unsigned long flags;
    
    	unsigned int baudrate;
    
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    	unsigned long cpu_clk;	/* CPU clock in Hz!		*/
    	unsigned long bus_clk;
    	/* We cannot bracket this with CONFIG_PCI due to mpc5xxx */
    	unsigned long pci_clk;
    	unsigned long mem_clk;
    #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
    	unsigned long fb_base;	/* Base address of framebuffer mem */
    #endif
    #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
    	unsigned long post_log_word;  /* Record POST activities */
    	unsigned long post_log_res; /* success of POST test */
    	unsigned long post_init_f_time;  /* When post_init_f started */
    #endif
    #ifdef CONFIG_BOARD_TYPES
    	unsigned long board_type;
    #endif
    	unsigned long have_console;	/* serial_init() was called */
    #ifdef CONFIG_PRE_CONSOLE_BUFFER
    	unsigned long precon_buf_idx;	/* Pre-Console buffer index */
    #endif
    #ifdef CONFIG_MODEM_SUPPORT
    	unsigned long do_mdm_init;
    	unsigned long be_quiet;
    #endif
    	unsigned long env_addr;	/* Address  of Environment struct */
    	unsigned long env_valid;	/* Checksum of Environment valid? */
    
    	unsigned long ram_top;	/* Top address of RAM used by U-Boot */
    
    	unsigned long relocaddr;	/* Start address of U-Boot in RAM */
    	phys_size_t ram_size;	/* RAM size */
    	unsigned long mon_len;	/* monitor len */
    	unsigned long irq_sp;		/* irq stack pointer */
    	unsigned long start_addr_sp;	/* start_addr_stackpointer */
    	unsigned long reloc_off;
    	struct global_data *new_gd;	/* relocated global data */
    	const void *fdt_blob;	/* Our device tree, NULL if none */
    
    	void *new_fdt;		/* Relocated FDT */
    	unsigned long fdt_size;	/* Space reserved for relocated FDT */
    
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    	void **jt;		/* jump table */
    	char env_buf[32];	/* buffer for getenv() before reloc. */
    
    #ifdef CONFIG_TRACE
    	void		*trace_buff;	/* The trace buffer */
    #endif
    
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    	struct arch_global_data arch;	/* architecture-specific data */
    } gd_t;
    #endif
    
    /*
     * 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	/* Env. imported into hash table   */
    
    #endif /* __ASM_GENERIC_GBL_DATA_H */