Update from 2013.01 to 2013.07

[karo-tx-uboot.git] / arch / arm / cpu / armv7 / exynos / tzpc.c

diff --git a/arch/arm/cpu/armv7/exynos/tzpc.c b/arch/arm/cpu/armv7/exynos/tzpc.c
new file mode 100644 (file)
index 0000000..395077c
--- /dev/null
+++ b/arch/arm/cpu/armv7/exynos/tzpc.c
@@ -0,0 +1,41 @@
+/*
+ * Lowlevel setup for SMDK5250 board based on S5PC520
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arch/tzpc.h>
+#include <asm/io.h>
+
+/* Setting TZPC[TrustZone Protection Controller] */
+void tzpc_init(void)
+{
+       struct exynos_tzpc *tzpc;
+       unsigned int addr, start = 0, end = 0;
+
+       start = samsung_get_base_tzpc();
+
+       if (cpu_is_exynos5())
+               end = start + ((EXYNOS5_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
+       else if (cpu_is_exynos4())
+               end = start + ((EXYNOS4_NR_TZPC_BANKS - 1) * TZPC_BASE_OFFSET);
+
+       for (addr = start; addr <= end; addr += TZPC_BASE_OFFSET) {
+               tzpc = (struct exynos_tzpc *)addr;
+
+               if (addr == start)
+                       writel(R0SIZE, &tzpc->r0size);
+
+               writel(DECPROTXSET, &tzpc->decprot0set);
+               writel(DECPROTXSET, &tzpc->decprot1set);
+
+               if (cpu_is_exynos5() && (addr == end))
+                       break;
+
+               writel(DECPROTXSET, &tzpc->decprot2set);
+               writel(DECPROTXSET, &tzpc->decprot3set);
+       }
+}