src/soc/samsung/exynos5250/trustzone.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/mmio.h>
   4 #include <soc/trustzone.h>
   5
   6 /* Setting TZPC[TrustZone Protection Controller] */
   7 void trustzone_init(void)
   8 {
   9         struct exynos_tzpc *tzpc;
  10         unsigned int addr;
  11
  12         for (addr = TZPC0_BASE; addr <= TZPC9_BASE; addr += TZPC_BASE_OFFSET) {
  13                 tzpc = (struct exynos_tzpc *)addr;
  14
  15                 if (addr == TZPC0_BASE)
  16                         write32(&tzpc->r0size, R0SIZE);
  17
  18                 write32(&tzpc->decprot0set, DECPROTXSET);
  19                 write32(&tzpc->decprot1set, DECPROTXSET);
  20
  21                 if (addr != TZPC9_BASE) {
  22                         write32(&tzpc->decprot2set, DECPROTXSET);
  23                         write32(&tzpc->decprot3set, DECPROTXSET);
  24                 }
  25         }
  26 }