arch/powerpc/include/asm/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 "config.h"
  28 #include "asm/types.h"
  29
  30 /*
  31  * The following data structure is placed in some memory wich is
  32  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
  33  * some locked parts of the data cache) to allow for a minimum set of
  34  * global variables during system initialization (until we have set
  35  * up the memory controller so that we can use RAM).
  36  *
  37  * Keep it *SMALL* and remember to set CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t)
  38  */
  39
  40 typedef struct  global_data {
  41         bd_t            *bd;
  42         unsigned long   flags;
  43         unsigned long   baudrate;
  44         unsigned long   cpu_clk;        /* CPU clock in Hz! */
  45         unsigned long   bus_clk;
  46 #if defined(CONFIG_8xx)
  47         unsigned long   brg_clk;
  48 #endif
  49 #if defined(CONFIG_CPM2)
  50         /* There are many clocks on the MPC8260 - see page 9-5 */
  51         unsigned long   vco_out;
  52         unsigned long   cpm_clk;
  53         unsigned long   scc_clk;
  54         unsigned long   brg_clk;
  55 #ifdef CONFIG_PCI
  56         unsigned long   pci_clk;
  57 #endif
  58 #endif
  59         unsigned long   mem_clk;
  60 #if defined(CONFIG_MPC83xx)
  61         /* There are other clocks in the MPC83XX */
  62         u32 csb_clk;
  63 #if defined(CONFIG_MPC834x) || defined(CONFIG_MPC831x) || defined(CONFIG_MPC837x)
  64         u32 tsec1_clk;
  65         u32 tsec2_clk;
  66         u32 usbdr_clk;
  67 #endif
  68 #if defined (CONFIG_MPC834x)
  69         u32 usbmph_clk;
  70 #endif /* CONFIG_MPC834x */
  71 #if defined(CONFIG_MPC8315)
  72         u32 tdm_clk;
  73 #endif
  74         u32 core_clk;
  75         u32 enc_clk;
  76         u32 lbiu_clk;
  77         u32 lclk_clk;
  78         u32 pci_clk;
  79 #if defined(CONFIG_MPC837x) || defined(CONFIG_MPC831x)
  80         u32 pciexp1_clk;
  81         u32 pciexp2_clk;
  82 #endif
  83 #if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315)
  84         u32 sata_clk;
  85 #endif
  86 #if defined(CONFIG_MPC8360)
  87         u32  mem_sec_clk;
  88 #endif /* CONFIG_MPC8360 */
  89 #endif
  90 #if defined(CONFIG_FSL_ESDHC)
  91         u32 sdhc_clk;
  92 #endif
  93 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
  94         u32 lbc_clk;
  95         void *cpu;
  96 #endif /* CONFIG_MPC85xx || CONFIG_MPC86xx */
  97 #if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
  98         u32 i2c1_clk;
  99         u32 i2c2_clk;
 100 #endif
 101 #if defined(CONFIG_QE)
 102         u32 qe_clk;
 103         u32 brg_clk;
 104         uint mp_alloc_base;
 105         uint mp_alloc_top;
 106 #endif /* CONFIG_QE */
 107 #if defined(CONFIG_FSL_LAW)
 108         u32 used_laws;
 109 #endif
 110 #if defined(CONFIG_E500)
 111         u32 used_tlb_cams[(CONFIG_SYS_NUM_TLBCAMS+31)/32];
 112 #endif
 113 #if defined(CONFIG_MPC5xxx)
 114         unsigned long   ipb_clk;
 115         unsigned long   pci_clk;
 116 #endif
 117 #if defined(CONFIG_MPC512X)
 118         u32 ips_clk;
 119         u32 csb_clk;
 120         u32 pci_clk;
 121 #endif /* CONFIG_MPC512X */
 122 #if defined(CONFIG_MPC8220)
 123         unsigned long   bExtUart;
 124         unsigned long   inp_clk;
 125         unsigned long   pci_clk;
 126         unsigned long   vco_clk;
 127         unsigned long   pev_clk;
 128         unsigned long   flb_clk;
 129 #endif
 130         phys_size_t     ram_size;       /* RAM size */
 131         unsigned long   reset_status;   /* reset status register at boot        */
 132 #if defined(CONFIG_MPC83xx)
 133         unsigned long   arbiter_event_attributes;
 134         unsigned long   arbiter_event_address;
 135 #endif
 136         unsigned long   env_addr;       /* Address  of Environment struct       */
 137         unsigned long   env_valid;      /* Checksum of Environment valid?       */
 138         unsigned long   have_console;   /* serial_init() was called             */
 139 #if defined(CONFIG_SYS_ALLOC_DPRAM) || defined(CONFIG_CPM2)
 140         unsigned int    dp_alloc_base;
 141         unsigned int    dp_alloc_top;
 142 #endif
 143 #if defined(CONFIG_4xx)
 144         u32  uart_clk;
 145 #endif /* CONFIG_4xx */
 146 #if defined(CONFIG_SYS_GT_6426x)
 147         unsigned int    mirror_hack[16];
 148 #endif
 149 #if defined(CONFIG_A3000)       || \
 150     defined(CONFIG_HIDDEN_DRAGON)  || \
 151     defined(CONFIG_MUSENKI)     ||  \
 152     defined(CONFIG_SANDPOINT)
 153         void *          console_addr;
 154 #endif
 155         unsigned long   relocaddr;      /* Start address of U-Boot in RAM */
 156 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
 157         unsigned long   fb_base;        /* Base address of framebuffer memory   */
 158 #endif
 159 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
 160         unsigned long   post_log_word;  /* Record POST activities */
 161         unsigned long   post_init_f_time;  /* When post_init_f started */
 162 #endif
 163 #ifdef CONFIG_BOARD_TYPES
 164         unsigned long   board_type;
 165 #endif
 166 #ifdef CONFIG_MODEM_SUPPORT
 167         unsigned long do_mdm_init;
 168         unsigned long be_quiet;
 169 #endif
 170 #if defined(CONFIG_LWMON) || defined(CONFIG_LWMON5)
 171         unsigned long kbd_status;
 172 #endif
 173 #if defined(CONFIG_WD_MAX_RATE)
 174         unsigned long long wdt_last;    /* trace watch-dog triggering rate */
 175 #endif
 176         void            **jt;           /* jump table */
 177 } gd_t;
 178
 179 /*
 180  * Global Data Flags
 181  */
 182 #define GD_FLG_RELOC    0x00001         /* Code was relocated to RAM            */
 183 #define GD_FLG_DEVINIT  0x00002         /* Devices have been initialized        */
 184 #define GD_FLG_SILENT   0x00004         /* Silent mode                          */
 185 #define GD_FLG_POSTFAIL 0x00008         /* Critical POST test failed            */
 186 #define GD_FLG_POSTSTOP 0x00010         /* POST seqeunce aborted                */
 187 #define GD_FLG_LOGINIT  0x00020         /* Log Buffer has been initialized      */
 188 #define GD_FLG_DISABLE_CONSOLE  0x00040         /* Disable console (in & out)    */
 189
 190 #if 1
 191 #define DECLARE_GLOBAL_DATA_PTR     register volatile gd_t *gd asm ("r2")
 192 #else /* We could use plain global data, but the resulting code is bigger */
 193 #define XTRN_DECLARE_GLOBAL_DATA_PTR    extern
 194 #define DECLARE_GLOBAL_DATA_PTR     XTRN_DECLARE_GLOBAL_DATA_PTR \
 195                                     gd_t *gd
 196 #endif
 197
 198 #endif /* __ASM_GBL_DATA_H */