global_data.h 1.9 KB

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  1. /*
  2. * (C) Copyright 2004 Atmark Techno, Inc.
  3. *
  4. * Yasushi SHOJI <yashi@atmark-techno.com>
  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. #ifndef __ASM_GBL_DATA_H
  25. #define __ASM_GBL_DATA_H
  26. /*
  27. * The following data structure is placed in some memory wich is
  28. * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
  29. * some locked parts of the data cache) to allow for a minimum set of
  30. * global variables during system initialization (until we have set
  31. * up the memory controller so that we can use RAM).
  32. */
  33. typedef struct global_data {
  34. bd_t *bd;
  35. unsigned long flags;
  36. unsigned int baudrate;
  37. unsigned long cpu_clk; /* CPU clock in Hz! */
  38. unsigned long have_console; /* serial_init() was called */
  39. phys_size_t ram_size; /* RAM size */
  40. unsigned long env_addr; /* Address of Environment struct */
  41. unsigned long env_valid; /* Checksum of Environment valid? */
  42. unsigned long fb_base; /* base address of frame buffer */
  43. void **jt; /* jump table */
  44. char env_buf[32]; /* buffer for getenv() before reloc. */
  45. } gd_t;
  46. #include <asm-generic/global_data_flags.h>
  47. /* OR32 GCC already has r10 set as fixed-use */
  48. #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r10")
  49. #endif /* __ASM_GBL_DATA_H */