microblaze-generic.c 1.3 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * (C) Copyright 2007-2018 Michal Simek
  4. *
  5. * Michal SIMEK <monstr@monstr.eu>
  6. */
  7. /*
  8. * This is a board specific file. It's OK to include board specific
  9. * header files
  10. */
  11. #include <common.h>
  12. #include <config.h>
  13. #include <init.h>
  14. #include <dm/lists.h>
  15. #include <fdtdec.h>
  16. #include <linux/sizes.h>
  17. DECLARE_GLOBAL_DATA_PTR;
  18. int dram_init_banksize(void)
  19. {
  20. return fdtdec_setup_memory_banksize();
  21. }
  22. int dram_init(void)
  23. {
  24. if (fdtdec_setup_mem_size_base() != 0)
  25. return -EINVAL;
  26. return 0;
  27. };
  28. int board_late_init(void)
  29. {
  30. ulong max_size, lowmem_size;
  31. #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_SYSRESET_MICROBLAZE)
  32. int ret;
  33. ret = device_bind_driver(gd->dm_root, "mb_soft_reset",
  34. "reset_soft", NULL);
  35. if (ret)
  36. printf("Warning: No reset driver: ret=%d\n", ret);
  37. #endif
  38. if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
  39. debug("Saved variables - Skipping\n");
  40. return 0;
  41. }
  42. max_size = gd->start_addr_sp - CONFIG_STACK_SIZE;
  43. max_size = round_down(max_size, SZ_16M);
  44. /* Linux default LOWMEM_SIZE is 0x30000000 = 768MB */
  45. lowmem_size = gd->ram_base + 768 * 1024 * 1024;
  46. env_set_addr("initrd_high", (void *)min_t(ulong, max_size,
  47. lowmem_size));
  48. env_set_addr("fdt_high", (void *)min_t(ulong, max_size, lowmem_size));
  49. return 0;
  50. }