rtd1195.c 912 B

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  1. // SPDX-License-Identifier: GPL-2.0-or-later
  2. /*
  3. * Realtek RTD1195
  4. *
  5. * Copyright (c) 2017-2019 Andreas Färber
  6. */
  7. #include <linux/memblock.h>
  8. #include <asm/mach/arch.h>
  9. static void __init rtd1195_memblock_remove(phys_addr_t base, phys_addr_t size)
  10. {
  11. int ret;
  12. ret = memblock_remove(base, size);
  13. if (ret)
  14. pr_err("Failed to remove memblock %pa (%d)\n", &base, ret);
  15. }
  16. static void __init rtd1195_reserve(void)
  17. {
  18. /* Exclude boot ROM from RAM */
  19. rtd1195_memblock_remove(0x00000000, 0x0000a800);
  20. /* Exclude peripheral register spaces from RAM */
  21. rtd1195_memblock_remove(0x18000000, 0x00070000);
  22. rtd1195_memblock_remove(0x18100000, 0x01000000);
  23. }
  24. static const char *const rtd1195_dt_compat[] __initconst = {
  25. "realtek,rtd1195",
  26. NULL
  27. };
  28. DT_MACHINE_START(rtd1195, "Realtek RTD1195")
  29. .dt_compat = rtd1195_dt_compat,
  30. .reserve = rtd1195_reserve,
  31. .l2c_aux_val = 0x0,
  32. .l2c_aux_mask = ~0x0,
  33. MACHINE_END