src/soc/cavium/cn81xx/mmu.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <symbols.h>
   4 #include <soc/addressmap.h>
   5 #include <soc/mmu.h>
   6 #include <soc/sdram.h>
   7 #include <arch/mmu.h>
   8
   9 void soc_mmu_init(void)
  10 {
  11         const unsigned long devmem = MA_DEV | MA_S | MA_RW;
  12         const unsigned long secure_mem = MA_MEM | MA_S | MA_RW;
  13
  14         mmu_init();
  15
  16         /*
  17          * Need to use secure mem attribute, as firmware is running in ARM TZ
  18          * region.
  19          */
  20         mmu_config_range((void *)_ttb, REGION_SIZE(ttb), secure_mem);
  21         mmu_config_range((void *)_dram, sdram_size_mb() * MiB, secure_mem);
  22         /* IO space has the MSB set and is divided into 4 sub-regions:
  23          * * NCB
  24          * * SLI
  25          * * RSL
  26          * * AP
  27          */
  28         mmu_config_range((void *)IO_SPACE_START, IO_SPACE_SIZE, devmem);
  29
  30         mmu_enable();
  31 }