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authorAchin Gupta <achin.gupta@arm.com>2013-10-25 09:08:21 +0100
committerJames Morrissey <james.morrissey@arm.com>2013-10-25 09:37:16 +0100
commit4f6ad66ae9fcc8bcb3b0fcee10b7ab1ffcaf1a56 (patch)
tree475db5d74370cb62b02afab0900774955a59702f /bl31/bl31_main.c
downloadarm-trusted-firmware-4f6ad66ae9fcc8bcb3b0fcee10b7ab1ffcaf1a56.tar.gz
ARMv8 Trusted Firmware release v0.2v0.2
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+/*
+ * Copyright (c) 2013, ARM Limited. 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.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include <arch_helpers.h>
+#include <console.h>
+#include <platform.h>
+#include <semihosting.h>
+#include <bl_common.h>
+#include <bl31.h>
+#include <runtime_svc.h>
+
+void bl31_arch_next_el_setup(void);
+
+/*******************************************************************************
+ * BL31 is responsible for setting up the runtime services for the primary cpu
+ * before passing control to the bootloader (UEFI) or Linux.
+ ******************************************************************************/
+void bl31_main(void)
+{
+ el_change_info *image_info;
+ unsigned long mpidr = read_mpidr();
+
+ /* Perform remaining generic architectural setup from EL3 */
+ bl31_arch_setup();
+
+ /* Perform platform setup in BL1 */
+ bl31_platform_setup();
+
+#if defined (__GNUC__)
+ printf("BL31 Built : %s, %s\n\r", __TIME__, __DATE__);
+#endif
+
+
+ /* Initialize the runtime services e.g. psci */
+ runtime_svc_init(mpidr);
+
+ /* Clean caches before re-entering normal world */
+ dcsw_op_all(DCCSW);
+
+ image_info = bl31_get_next_image_info(mpidr);
+ bl31_arch_next_el_setup();
+ change_el(image_info);
+
+ /* There is no valid reason for change_el() to return */
+ assert(0);
+}