include/asm-ppc/global_data.h

   1 /*
   2  * (C) Copyright 2002
   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/types.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  * Keep it *SMALL* and remember to set CFG_GBL_DATA_SIZE > sizeof(gd_t)
  37  */
  38
  39 typedef struct  global_data {
  40         bd_t            *bd;
  41         unsigned long   flags;
  42         unsigned long   baudrate;
  43         unsigned long   cpu_clk;        /* CPU clock in Hz! */
  44         unsigned long   bus_clk;
  45 #if defined(CONFIG_8xx)
  46         unsigned long   brg_clk;
  47 #endif
  48 #if defined(CONFIG_CPM2)
  49         /* There are many clocks on the MPC8260 - see page 9-5 */
  50         unsigned long   vco_out;
  51         unsigned long   cpm_clk;
  52         unsigned long   scc_clk;
  53         unsigned long   brg_clk;
  54 #endif
  55         unsigned long   mem_clk;
  56 #if defined(CONFIG_MPC83XX)
  57         /* There are other clocks in the MPC83XX */
  58         u32 csb_clk;
  59 #if defined(CONFIG_MPC834X) || defined(CONFIG_MPC831X) || defined(CONFIG_MPC837X)
  60         u32 tsec1_clk;
  61         u32 tsec2_clk;
  62         u32 usbdr_clk;
  63 #endif
  64 #if defined (CONFIG_MPC834X)
  65         u32 usbmph_clk;
  66 #endif /* CONFIG_MPC834X */
  67 #if defined(CONFIG_MPC8315)
  68         u32 tdm_clk;
  69 #endif
  70 #if defined(CONFIG_MPC837X)
  71         u32 sdhc_clk;
  72 #endif
  73         u32 core_clk;
  74         u32 enc_clk;
  75         u32 lbiu_clk;
  76         u32 lclk_clk;
  77         u32 pci_clk;
  78 #if defined(CONFIG_MPC837X)
  79         u32 pciexp1_clk;
  80         u32 pciexp2_clk;
  81 #endif
  82 #if defined(CONFIG_MPC837X) || defined(CONFIG_MPC8315)
  83         u32 sata_clk;
  84 #endif
  85 #if defined(CONFIG_MPC8360)
  86         u32  mem_sec_clk;
  87 #endif /* CONFIG_MPC8360 */
  88 #endif
  89 #if defined(CONFIG_MPC83XX) || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
  90         u32 i2c1_clk;
  91         u32 i2c2_clk;
  92 #endif
  93 #if defined(CONFIG_QE)
  94         u32 qe_clk;
  95         u32 brg_clk;
  96         uint mp_alloc_base;
  97         uint mp_alloc_top;
  98 #endif /* CONFIG_QE */
  99 #if defined(CONFIG_MPC5xxx)
 100         unsigned long   ipb_clk;
 101         unsigned long   pci_clk;
 102 #endif
 103 #if defined(CONFIG_MPC512X)
 104         u32 ips_clk;
 105         u32 csb_clk;
 106         u32 pci_clk;
 107 #endif /* CONFIG_MPC512X */
 108 #if defined(CONFIG_MPC8220)
 109         unsigned long   bExtUart;
 110         unsigned long   inp_clk;
 111         unsigned long   pci_clk;
 112         unsigned long   vco_clk;
 113         unsigned long   pev_clk;
 114         unsigned long   flb_clk;
 115 #endif
 116         unsigned long   ram_size;       /* RAM size */
 117         unsigned long   reloc_off;      /* Relocation Offset */
 118         unsigned long   reset_status;   /* reset status register at boot        */
 119         unsigned long   env_addr;       /* Address  of Environment struct       */
 120         unsigned long   env_valid;      /* Checksum of Environment valid?       */
 121         unsigned long   have_console;   /* serial_init() was called             */
 122 #if defined(CFG_ALLOC_DPRAM) || defined(CONFIG_CPM2)
 123         unsigned int    dp_alloc_base;
 124         unsigned int    dp_alloc_top;
 125 #endif
 126 #if defined(CONFIG_4xx)
 127         u32  uart_clk;
 128 #endif /* CONFIG_4xx */
 129 #if defined(CFG_GT_6426x)
 130         unsigned int    mirror_hack[16];
 131 #endif
 132 #if defined(CONFIG_A3000)       || \
 133     defined(CONFIG_HIDDEN_DRAGON)  || \
 134     defined(CONFIG_MUSENKI)     ||  \
 135     defined(CONFIG_SANDPOINT)
 136         void *          console_addr;
 137 #endif
 138 #ifdef CONFIG_AMIGAONEG3SE
 139         unsigned long   relocaddr;      /* Start address of U-Boot in RAM */
 140 #endif
 141 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
 142         unsigned long   fb_base;        /* Base address of framebuffer memory   */
 143 #endif
 144 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
 145         unsigned long   post_log_word;  /* Record POST activities */
 146         unsigned long   post_init_f_time;  /* When post_init_f started */
 147 #endif
 148 #ifdef CONFIG_BOARD_TYPES
 149         unsigned long   board_type;
 150 #endif
 151 #ifdef CONFIG_MODEM_SUPPORT
 152         unsigned long do_mdm_init;
 153         unsigned long be_quiet;
 154 #endif
 155 #if defined(CONFIG_LWMON) || defined(CONFIG_LWMON5)
 156         unsigned long kbd_status;
 157 #endif
 158 #if defined(CONFIG_WD_MAX_RATE)
 159         unsigned long long wdt_last;    /* trace watch-dog triggering rate */
 160 #endif
 161         void            **jt;           /* jump table */
 162 } gd_t;
 163
 164 /*
 165  * Global Data Flags
 166  */
 167 #define GD_FLG_RELOC    0x00001         /* Code was relocated to RAM            */
 168 #define GD_FLG_DEVINIT  0x00002         /* Devices have been initialized        */
 169 #define GD_FLG_SILENT   0x00004         /* Silent mode                          */
 170 #define GD_FLG_POSTFAIL 0x00008         /* Critical POST test failed            */
 171
 172 #if 1
 173 #define DECLARE_GLOBAL_DATA_PTR     register volatile gd_t *gd asm ("r2")
 174 #else /* We could use plain global data, but the resulting code is bigger */
 175 #define XTRN_DECLARE_GLOBAL_DATA_PTR    extern
 176 #define DECLARE_GLOBAL_DATA_PTR     XTRN_DECLARE_GLOBAL_DATA_PTR \
 177                                     gd_t *gd
 178 #endif
 179
 180 #endif /* __ASM_GBL_DATA_H */