arch/arm/cpu/armv7/sunxi/tzpc.c

   1 /*
   2  * (C) Copyright 2015 Chen-Yu Tsai <wens@csie.org>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6
   7 #include <asm/io.h>
   8 #include <asm/arch/cpu.h>
   9 #include <asm/arch/tzpc.h>
  10
  11 /* Configure Trust Zone Protection Controller */
  12 void tzpc_init(void)
  13 {
  14         struct sunxi_tzpc *tzpc = (struct sunxi_tzpc *)SUNXI_TZPC_BASE;
  15
  16 #ifdef CONFIG_MACH_SUN6I
  17         /* Enable non-secure access to the RTC */
  18         writel(SUN6I_TZPC_DECPORT0_RTC, &tzpc->decport0_set);
  19 #endif
  20
  21 #ifdef CONFIG_MACH_SUN8I_H3
  22         /* Enable non-secure access to all peripherals */
  23         writel(SUN8I_H3_TZPC_DECPORT0_ALL, &tzpc->decport0_set);
  24         writel(SUN8I_H3_TZPC_DECPORT1_ALL, &tzpc->decport1_set);
  25         writel(SUN8I_H3_TZPC_DECPORT2_ALL, &tzpc->decport2_set);
  26 #endif
  27 }