prom.c 1.6 KB

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  1. /*
  2. * This program is free software; you can redistribute it and/or modify it
  3. * under the terms of the GNU General Public License version 2 as published
  4. * by the Free Software Foundation.
  5. *
  6. * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
  7. * Copyright (C) 2010 Joonas Lahtinen <joonas.lahtinen@gmail.com>
  8. * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
  9. */
  10. #include <linux/string.h>
  11. #include <linux/of_fdt.h>
  12. #include <linux/of_platform.h>
  13. #include <asm/bootinfo.h>
  14. #include <asm/addrspace.h>
  15. #include <asm/mach-ralink/ralink_regs.h>
  16. #include "common.h"
  17. struct ralink_soc_info soc_info;
  18. struct rt2880_pmx_group *rt2880_pinmux_data = NULL;
  19. enum ralink_soc_type ralink_soc;
  20. EXPORT_SYMBOL_GPL(ralink_soc);
  21. const char *get_system_type(void)
  22. {
  23. return soc_info.sys_type;
  24. }
  25. static __init void prom_init_cmdline(void)
  26. {
  27. int argc;
  28. char **argv;
  29. int i;
  30. pr_debug("prom: fw_arg0=%08x fw_arg1=%08x fw_arg2=%08x fw_arg3=%08x\n",
  31. (unsigned int)fw_arg0, (unsigned int)fw_arg1,
  32. (unsigned int)fw_arg2, (unsigned int)fw_arg3);
  33. argc = fw_arg0;
  34. argv = (char **) KSEG1ADDR(fw_arg1);
  35. if (!argv) {
  36. pr_debug("argv=%p is invalid, skipping\n",
  37. argv);
  38. return;
  39. }
  40. for (i = 0; i < argc; i++) {
  41. char *p = (char *) KSEG1ADDR(argv[i]);
  42. if (CPHYSADDR(p) && *p) {
  43. pr_debug("argv[%d]: %s\n", i, p);
  44. strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
  45. strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
  46. }
  47. }
  48. }
  49. void __init prom_init(void)
  50. {
  51. prom_soc_init(&soc_info);
  52. pr_info("SoC Type: %s\n", get_system_type());
  53. prom_init_cmdline();
  54. }
  55. void __init prom_free_prom_memory(void)
  56. {
  57. }