imx: imx_aips: Add initial AIPS support
This patch adds an initial AHB-to-IP TrustZone (AIPS-TZ) initialization
routine. Setting up the AIPSTZ controller is required to inform the SoC
interconnect fabric which bus-masters can read/write and if the read/writes
are buffered.
For our purposes the initial configuration is for everything to be open. We
can lock-down later on as necessary.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
diff --git a/plat/imx/common/include/imx_aips.h b/plat/imx/common/include/imx_aips.h
new file mode 100644
index 0000000..3c33553
--- /dev/null
+++ b/plat/imx/common/include/imx_aips.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __IMX_AIPS_H__
+#define __IMX_AIPS_H__
+
+#include <stdint.h>
+
+#define AIPSTZ_OAPCR_COUNT 0x05
+
+struct aipstz_regs {
+ uint32_t aipstz_mpr;
+ uint32_t res[15];
+ uint32_t aipstz_opacr[AIPSTZ_OAPCR_COUNT];
+};
+
+void imx_aips_init(void);
+
+#endif /* __IMX_AIPS_H__ */