Merge pull request #389 from vikramkanigiri/vk/css_rework

Add more configurability options in ARM platform port code

include/drivers/arm/nic_400.h

+/*
+ * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __NIC_400_H__
+#define __NIC_400_H__
+
+/*
+ * Address of slave 'n' security setting in the NIC-400 address region
+ * control
+ */
+#define NIC400_ADDR_CTRL_SECURITY_REG(n)	(0x8 + (n) * 4)
+
+#endif /* __NIC_400_H__ */

include/plat/arm/common/arm_def.h

@@ -173,10 +173,6 @@
 
 #define ARM_CONSOLE_BAUDRATE		115200
 
-/* TZC related constants */
-#define ARM_TZC_BASE			0x2a4a0000
-
-
 /******************************************************************************
  * Required platform porting definitions common to all ARM standard platforms
  *****************************************************************************/

include/plat/arm/css/common/css_def.h

@@ -111,6 +111,9 @@
 
 /* TZC related constants */
 #define PLAT_ARM_TZC_FILTERS		REG_ATTR_FILTER_BIT_ALL
+#define PLAT_ARM_TZC_BASE		0x2a4a0000
 
+/* System timer related constants */
+#define PLAT_ARM_NSTIMER_FRAME_ID	1
 
 #endif /* __CSS_DEF_H__ */

plat/arm/board/fvp/include/platform_def.h

@@ -85,6 +85,9 @@
 #define PLAT_ARM_CCI_CLUSTER0_SL_IFACE_IX	3
 #define PLAT_ARM_CCI_CLUSTER1_SL_IFACE_IX	4
 
+/* System timer related constants */
+#define PLAT_ARM_NSTIMER_FRAME_ID		1
+
 /* TrustZone controller related constants
  *
  * Currently only filters 0 and 2 are connected on Base FVP.
@@ -100,6 +103,7 @@
  * Give access to the CPUs and Virtio. Some devices
  * would normally use the default ID so allow that too.
  */
+#define PLAT_ARM_TZC_BASE		0x2a4a0000
 #define PLAT_ARM_TZC_FILTERS		REG_ATTR_FILTER_BIT(0)
 
 #define PLAT_ARM_TZC_NS_DEV_ACCESS	(				\

plat/arm/board/juno/juno_security.c

@@ -29,6 +29,7 @@
  */
 
 #include <mmio.h>
+#include <nic_400.h>
 #include <plat_arm.h>
 #include <soc_css.h>
 #include "juno_def.h"
@@ -47,6 +48,17 @@ static void init_mmu401(void)
 	mmio_write_32(MMU401_DMA330_BASE + MMU401_SSD_OFFSET, reg);
 }
 
+/*******************************************************************************
+ * Program CSS-NIC400 to allow non-secure access to some CSS regions.
+ ******************************************************************************/
+static void css_init_nic400(void)
+{
+	/* Note: This is the NIC-400 device on the CSS */
+	mmio_write_32(PLAT_SOC_CSS_NIC400_BASE +
+		NIC400_ADDR_CTRL_SECURITY_REG(CSS_NIC400_SLAVE_BOOTSECURE),
+		~0);
+}
+
 /*******************************************************************************
  * Initialize the secure environment.
  ******************************************************************************/
@@ -54,6 +66,8 @@ void plat_arm_security_setup(void)
 {
 	/* Initialize the TrustZone Controller */
 	arm_tzc_setup();
+	/* Do ARM CSS internal NIC setup */
+	css_init_nic400();
 	/* Do ARM CSS SoC security setup */
 	soc_css_security_setup();
 	/* Initialize the SMMU SSD tables*/

plat/arm/common/arm_bl31_setup.c

@@ -40,6 +40,7 @@
 #include <mmio.h>
 #include <plat_arm.h>
 #include <platform.h>
+#include <platform_def.h>
 
 
 /*
@@ -219,9 +220,9 @@ void arm_bl31_platform_setup(void)
 	reg_val = (1 << CNTACR_RPCT_SHIFT) | (1 << CNTACR_RVCT_SHIFT);
 	reg_val |= (1 << CNTACR_RFRQ_SHIFT) | (1 << CNTACR_RVOFF_SHIFT);
 	reg_val |= (1 << CNTACR_RWVT_SHIFT) | (1 << CNTACR_RWPT_SHIFT);
-	mmio_write_32(ARM_SYS_TIMCTL_BASE + CNTACR_BASE(1), reg_val);
+	mmio_write_32(ARM_SYS_TIMCTL_BASE + CNTACR_BASE(PLAT_ARM_NSTIMER_FRAME_ID), reg_val);
 
-	reg_val = (1 << CNTNSAR_NS_SHIFT(1));
+	reg_val = (1 << CNTNSAR_NS_SHIFT(PLAT_ARM_NSTIMER_FRAME_ID));
 	mmio_write_32(ARM_SYS_TIMCTL_BASE + CNTNSAR, reg_val);
 
 	/* Initialize power controller before setting up topology */

plat/arm/common/arm_security.c

@@ -47,7 +47,7 @@ void arm_tzc_setup(void)
 {
 	INFO("Configuring TrustZone Controller\n");
 
-	tzc_init(ARM_TZC_BASE);
+	tzc_init(PLAT_ARM_TZC_BASE);
 
 	/* Disable filters. */
 	tzc_disable_filters();

plat/arm/soc/common/soc_css_security.c

@@ -30,17 +30,10 @@
 
 #include <board_css_def.h>
 #include <mmio.h>
+#include <nic_400.h>
 #include <platform_def.h>
 #include <soc_css_def.h>
 
-/*
- * Address of slave 'n' security setting in the NIC-400 address region
- * control
- * TODO: Ideally this macro should be moved in a "nic-400.h" header file but
- * it would be the only thing in there so it's not worth it at the moment.
- */
-#define NIC400_ADDR_CTRL_SECURITY_REG(n)	(0x8 + (n) * 4)
-
 void soc_css_init_nic400(void)
 {
 	/*
@@ -70,13 +63,6 @@ void soc_css_init_nic400(void)
 		NIC400_ADDR_CTRL_SECURITY_REG(SOC_CSS_NIC400_BOOTSEC_BRIDGE),
 		~SOC_CSS_NIC400_BOOTSEC_BRIDGE_UART1);
 
-	/*
-	 * Allow non-secure access to some CSS regions.
-	 * Note: This is the NIC-400 device on the CSS
-	 */
-	mmio_write_32(PLAT_SOC_CSS_NIC400_BASE +
-		NIC400_ADDR_CTRL_SECURITY_REG(CSS_NIC400_SLAVE_BOOTSECURE),
-		~0);
 }