allwinner: Add R_PRCM security setup for H6

H6 has a reorganized R_PRCM compared to A64/H5, with the security switch
at a different offset. Until now, we did not notice, because the switch
has no effect unless the secure mode e-fuse is blown.

Since we are adding more platform-specific CCU registers, move them to
their own header, and out of the memory map (where they do not belong).
Signed-off-by: Samuel Holland <samuel@sholland.org>
Change-Id: Ie77476db0515080954eaa2e32bf6c3de657cda86

plat/allwinner/common/sunxi_security.c

@@ -7,6 +7,7 @@
 #include <common/debug.h>
 #include <lib/mmio.h>
 
+#include <sunxi_ccu.h>
 #include <sunxi_mmap.h>
 #include <sunxi_private.h>
 
@@ -16,7 +17,6 @@
 #define SPC_DECPORT_CLR_REG(p)	(SUNXI_SPC_BASE + ((p) * 0x0c) + 0xc)
 #endif
 
-#define R_PRCM_SEC_SWITCH_REG	0x1d0
 #define DMA_SEC_REG		0x20
 
 /*
@@ -40,7 +40,7 @@ void sunxi_security_setup(void)
 	mmio_write_32(SUNXI_CCU_SEC_SWITCH_REG, 0x7);
 
 	/* Set R_PRCM bus clocks to non-secure */
-	mmio_write_32(SUNXI_R_PRCM_BASE + R_PRCM_SEC_SWITCH_REG, 0x1);
+	mmio_write_32(SUNXI_R_PRCM_SEC_SWITCH_REG, 0x1);
 
 	/* Set all DMA channels (16 max.) to non-secure */
 	mmio_write_32(SUNXI_DMA_BASE + DMA_SEC_REG, 0xffff);

plat/allwinner/sun50i_a64/include/sunxi_ccu.h

+/*
+ * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SUNXI_CCU_H
+#define SUNXI_CCU_H
+
+#define SUNXI_CCU_SEC_SWITCH_REG	(SUNXI_CCU_BASE + 0x02f0)
+
+#define SUNXI_R_PRCM_SEC_SWITCH_REG	(SUNXI_R_PRCM_BASE + 0x01d0)
+
+#endif /* SUNXI_CCU_H */

plat/allwinner/sun50i_a64/include/sunxi_mmap.h

@@ -36,7 +36,6 @@
 #define SUNXI_MSGBOX_BASE		0x01c17000
 #define SUNXI_SPINLOCK_BASE		0x01c18000
 #define SUNXI_CCU_BASE			0x01c20000
-#define SUNXI_CCU_SEC_SWITCH_REG	(SUNXI_CCU_BASE + 0x2f0)
 #define SUNXI_PIO_BASE			0x01c20800
 #define SUNXI_TIMER_BASE		0x01c20c00
 #define SUNXI_WDOG_BASE			0x01c20ca0

plat/allwinner/sun50i_h6/include/sunxi_ccu.h

+/*
+ * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SUNXI_CCU_H
+#define SUNXI_CCU_H
+
+#define SUNXI_CCU_SEC_SWITCH_REG	(SUNXI_CCU_BASE + 0x0f00)
+
+#define SUNXI_R_PRCM_SEC_SWITCH_REG	(SUNXI_R_PRCM_BASE + 0x0290)
+
+#endif /* SUNXI_CCU_H */

plat/allwinner/sun50i_h6/include/sunxi_mmap.h

@@ -30,7 +30,6 @@
 #define SUNXI_DMA_BASE			0x03002000
 #define SUNXI_MSGBOX_BASE		0x03003000
 #define SUNXI_CCU_BASE			0x03001000
-#define SUNXI_CCU_SEC_SWITCH_REG	(SUNXI_CCU_BASE + 0xf00)
 #define SUNXI_PIO_BASE			0x0300b000
 #define SUNXI_TIMER_BASE		0x03009000
 #define SUNXI_WDOG_BASE			0x030090a0