arch/powerpc/include/asm/global_data.h

   1 /*
   2  * (C) Copyright 2002-2010
   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 /* Architecture-specific global data */
  31 struct arch_global_data {
  32 #if defined(CONFIG_8xx)
  33         unsigned long brg_clk;
  34 #endif
  35 #if defined(CONFIG_CPM2)
  36         /* There are many clocks on the MPC8260 - see page 9-5 */
  37         unsigned long vco_out;
  38         unsigned long cpm_clk;
  39         unsigned long scc_clk;
  40         unsigned long brg_clk;
  41 #endif
  42         /* TODO: sjg@chromium.org: Should these be unslgned long? */
  43 #if defined(CONFIG_MPC83xx)
  44         /* There are other clocks in the MPC83XX */
  45         u32 csb_clk;
  46 # if defined(CONFIG_MPC8308) || defined(CONFIG_MPC831x) || \
  47         defined(CONFIG_MPC834x) || defined(CONFIG_MPC837x)
  48         u32 tsec1_clk;
  49         u32 tsec2_clk;
  50         u32 usbdr_clk;
  51 # elif defined(CONFIG_MPC8309)
  52         u32 usbdr_clk;
  53 # endif
  54 # if defined(CONFIG_MPC834x)
  55         u32 usbmph_clk;
  56 # endif /* CONFIG_MPC834x */
  57 # if defined(CONFIG_MPC8315)
  58         u32 tdm_clk;
  59 # endif
  60         u32 core_clk;
  61         u32 enc_clk;
  62         u32 lbiu_clk;
  63         u32 lclk_clk;
  64 # if defined(CONFIG_MPC8308) || defined(CONFIG_MPC831x) || \
  65         defined(CONFIG_MPC837x)
  66         u32 pciexp1_clk;
  67         u32 pciexp2_clk;
  68 # endif
  69 # if defined(CONFIG_MPC837x) || defined(CONFIG_MPC8315)
  70         u32 sata_clk;
  71 # endif
  72 # if defined(CONFIG_MPC8360)
  73         u32 mem_sec_clk;
  74 # endif /* CONFIG_MPC8360 */
  75 #endif
  76 #if defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
  77         u32 lbc_clk;
  78         void *cpu;
  79 #endif /* CONFIG_MPC85xx || CONFIG_MPC86xx */
  80 #if defined(CONFIG_MPC83xx) || defined(CONFIG_MPC85xx) || \
  81                 defined(CONFIG_MPC86xx)
  82         u32 i2c1_clk;
  83         u32 i2c2_clk;
  84 #endif
  85 #if defined(CONFIG_QE)
  86         u32 qe_clk;
  87         u32 brg_clk;
  88         uint mp_alloc_base;
  89         uint mp_alloc_top;
  90 #endif /* CONFIG_QE */
  91 #if defined(CONFIG_FSL_LAW)
  92         u32 used_laws;
  93 #endif
  94 #if defined(CONFIG_E500)
  95         u32 used_tlb_cams[(CONFIG_SYS_NUM_TLBCAMS+31)/32];
  96 #endif
  97 #if defined(CONFIG_MPC5xxx)
  98         unsigned long ipb_clk;
  99 #endif
 100 #if defined(CONFIG_MPC512X)
 101         u32 ips_clk;
 102         u32 csb_clk;
 103 #endif /* CONFIG_MPC512X */
 104 #if defined(CONFIG_MPC8220)
 105         unsigned long inp_clk;
 106         unsigned long vco_clk;
 107         unsigned long pev_clk;
 108         unsigned long flb_clk;
 109 #endif
 110         unsigned long reset_status;     /* reset status register at boot */
 111 #if defined(CONFIG_MPC83xx)
 112         unsigned long arbiter_event_attributes;
 113         unsigned long arbiter_event_address;
 114 #endif
 115 #if defined(CONFIG_SYS_ALLOC_DPRAM) || defined(CONFIG_CPM2)
 116         unsigned int dp_alloc_base;
 117         unsigned int dp_alloc_top;
 118 #endif
 119 };
 120
 121 /*
 122  * The following data structure is placed in some memory wich is
 123  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
 124  * some locked parts of the data cache) to allow for a minimum set of
 125  * global variables during system initialization (until we have set
 126  * up the memory controller so that we can use RAM).
 127  */
 128
 129 typedef struct  global_data {
 130         bd_t            *bd;
 131         unsigned long   flags;
 132         unsigned int    baudrate;
 133         unsigned long   cpu_clk;        /* CPU clock in Hz! */
 134         unsigned long   bus_clk;
 135         /* We cannot bracket this with CONFIG_PCI due to mpc5xxx */
 136         unsigned long pci_clk;
 137         unsigned long   mem_clk;
 138 #if defined(CONFIG_FSL_ESDHC)
 139         u32 sdhc_clk;
 140 #endif
 141         phys_size_t     ram_size;       /* RAM size */
 142         unsigned long   env_addr;       /* Address  of Environment struct       */
 143         unsigned long   env_valid;      /* Checksum of Environment valid?       */
 144         unsigned long   have_console;   /* serial_init() was called             */
 145 #ifdef CONFIG_PRE_CONSOLE_BUFFER
 146         unsigned long   precon_buf_idx; /* Pre-Console buffer index */
 147 #endif
 148 #if defined(CONFIG_4xx)
 149         u32  uart_clk;
 150 #endif /* CONFIG_4xx */
 151 #if defined(CONFIG_SYS_GT_6426x)
 152         unsigned int    mirror_hack[16];
 153 #endif
 154 #if defined(CONFIG_A3000)       || \
 155     defined(CONFIG_HIDDEN_DRAGON)  || \
 156     defined(CONFIG_MUSENKI)     ||  \
 157     defined(CONFIG_SANDPOINT)
 158         void *          console_addr;
 159 #endif
 160         unsigned long   relocaddr;      /* Start address of U-Boot in RAM */
 161 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
 162         unsigned long   fb_base;        /* Base address of framebuffer memory   */
 163 #endif
 164 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
 165         unsigned long   post_log_word;  /* Record POST activities */
 166         unsigned long   post_log_res; /* success of POST test */
 167         unsigned long   post_init_f_time;  /* When post_init_f started */
 168 #endif
 169 #ifdef CONFIG_BOARD_TYPES
 170         unsigned long   board_type;
 171 #endif
 172 #ifdef CONFIG_MODEM_SUPPORT
 173         unsigned long do_mdm_init;
 174         unsigned long be_quiet;
 175 #endif
 176 #if defined(CONFIG_LWMON) || defined(CONFIG_LWMON5)
 177         unsigned long kbd_status;
 178 #endif
 179 #ifdef CONFIG_SYS_FPGA_COUNT
 180         unsigned fpga_state[CONFIG_SYS_FPGA_COUNT];
 181 #endif
 182 #if defined(CONFIG_WD_MAX_RATE)
 183         unsigned long long wdt_last;    /* trace watch-dog triggering rate */
 184 #endif
 185         void            **jt;           /* jump table */
 186         char            env_buf[32];    /* buffer for getenv() before reloc. */
 187         struct arch_global_data arch;   /* architecture-specific data */
 188 } gd_t;
 189
 190 #include <asm-generic/global_data_flags.h>
 191
 192 #if 1
 193 #define DECLARE_GLOBAL_DATA_PTR     register volatile gd_t *gd asm ("r2")
 194 #else /* We could use plain global data, but the resulting code is bigger */
 195 #define XTRN_DECLARE_GLOBAL_DATA_PTR    extern
 196 #define DECLARE_GLOBAL_DATA_PTR     XTRN_DECLARE_GLOBAL_DATA_PTR \
 197                                     gd_t *gd
 198 #endif
 199
 200 #endif /* __ASM_GBL_DATA_H */