LXR uboot/include/asm-generic/global

   1/*
   2 * Copyright (c) 2012 The Chromium OS Authors.
   3 * (C) Copyright 2002-2010
   4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5 *
   6 * See file CREDITS for list of people who contributed to this
   7 * project.
   8 *
   9 * This program is free software; you can redistribute it and/or
  10 * modify it under the terms of the GNU General Public License as
  11 * published by the Free Software Foundation; either version 2 of
  12 * the License, or (at your option) any later version.
  13 *
  14 * This program is distributed in the hope that it will be useful,
  15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 * GNU General Public License for more details.
  18 *
  19 * You should have received a copy of the GNU General Public License
  20 * along with this program; if not, write to the Free Software
  21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22 * MA 02111-1307 USA
  23 */
  24
  25#ifndef __ASM_GENERIC_GBL_DATA_H
  26#define __ASM_GENERIC_GBL_DATA_H
  27/*
  28 * The following data structure is placed in some memory which is
  29 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
  30 * some locked parts of the data cache) to allow for a minimum set of
  31 * global variables during system initialization (until we have set
  32 * up the memory controller so that we can use RAM).
  33 *
  34 * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
  35 *
  36 * Each architecture has its own private fields. For now all are private
  37 */
  38
  39#ifndef __ASSEMBLY__
  40typedef struct global_data {
  41        bd_t *bd;
  42        unsigned long flags;
  43        unsigned int baudrate;
  44        unsigned long cpu_clk;  /* CPU clock in Hz!             */
  45        unsigned long bus_clk;
  46        /* We cannot bracket this with CONFIG_PCI due to mpc5xxx */
  47        unsigned long pci_clk;
  48        unsigned long mem_clk;
  49#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
  50        unsigned long fb_base;  /* Base address of framebuffer mem */
  51#endif
  52#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
  53        unsigned long post_log_word;  /* Record POST activities */
  54        unsigned long post_log_res; /* success of POST test */
  55        unsigned long post_init_f_time;  /* When post_init_f started */
  56#endif
  57#ifdef CONFIG_BOARD_TYPES
  58        unsigned long board_type;
  59#endif
  60        unsigned long have_console;     /* serial_init() was called */
  61#ifdef CONFIG_PRE_CONSOLE_BUFFER
  62        unsigned long precon_buf_idx;   /* Pre-Console buffer index */
  63#endif
  64#ifdef CONFIG_MODEM_SUPPORT
  65        unsigned long do_mdm_init;
  66        unsigned long be_quiet;
  67#endif
  68        unsigned long env_addr; /* Address  of Environment struct */
  69        unsigned long env_valid;        /* Checksum of Environment valid? */
  70
  71        /* TODO: is this the same as relocaddr, or something else? */
  72        unsigned long dest_addr;        /* Post-relocation address of U-Boot */
  73        unsigned long dest_addr_sp;
  74        unsigned long ram_top;  /* Top address of RAM used by U-Boot */
  75
  76        unsigned long relocaddr;        /* Start address of U-Boot in RAM */
  77        phys_size_t ram_size;   /* RAM size */
  78        unsigned long mon_len;  /* monitor len */
  79        unsigned long irq_sp;           /* irq stack pointer */
  80        unsigned long start_addr_sp;    /* start_addr_stackpointer */
  81        unsigned long reloc_off;
  82        struct global_data *new_gd;     /* relocated global data */
  83        const void *fdt_blob;   /* Our device tree, NULL if none */
  84        void *new_fdt;          /* Relocated FDT */
  85        unsigned long fdt_size; /* Space reserved for relocated FDT */
  86        void **jt;              /* jump table */
  87        char env_buf[32];       /* buffer for getenv() before reloc. */
  88        struct arch_global_data arch;   /* architecture-specific data */
  89} gd_t;
  90#endif
  91
  92/*
  93 * Global Data Flags
  94 */
  95#define GD_FLG_RELOC            0x00001 /* Code was relocated to RAM       */
  96#define GD_FLG_DEVINIT          0x00002 /* Devices have been initialized   */
  97#define GD_FLG_SILENT           0x00004 /* Silent mode                     */
  98#define GD_FLG_POSTFAIL         0x00008 /* Critical POST test failed       */
  99#define GD_FLG_POSTSTOP         0x00010 /* POST seqeunce aborted           */
 100#define GD_FLG_LOGINIT          0x00020 /* Log Buffer has been initialized */
 101#define GD_FLG_DISABLE_CONSOLE  0x00040 /* Disable console (in & out)      */
 102#define GD_FLG_ENV_READY        0x00080 /* Env. imported into hash table   */
 103
 104#endif /* __ASM_GENERIC_GBL_DATA_H */
 105