GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/trusted-firmware/trusted-firmware-a-2.8/plat/brcm/common/brcm_common.c

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2019-2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <arch.h>
+#include <arch_helpers.h>
+#include <common/debug.h>
+#include <plat/common/platform.h>
+
+#include <plat_brcm.h>
+#include <platform_def.h>
+
+/* Weak definitions may be overridden in specific BRCM platform */
+#pragma weak plat_get_ns_image_entrypoint
+#pragma weak plat_brcm_get_mmap
+
+uintptr_t plat_get_ns_image_entrypoint(void)
+{
+#ifdef PRELOADED_BL33_BASE
+	return PRELOADED_BL33_BASE;
+#else
+	return PLAT_BRCM_NS_IMAGE_OFFSET;
+#endif
+}
+
+uint32_t brcm_get_spsr_for_bl32_entry(void)
+{
+	/*
+	 * The Secure Payload Dispatcher service is responsible for
+	 * setting the SPSR prior to entry into the BL32 image.
+	 */
+	return 0;
+}
+
+uint32_t brcm_get_spsr_for_bl33_entry(void)
+{
+	unsigned int mode;
+	uint32_t spsr;
+
+	/* Figure out what mode we enter the non-secure world in */
+	mode = el_implemented(2) ? MODE_EL2 : MODE_EL1;
+
+	/*
+	 * TODO: Consider the possibility of specifying the SPSR in
+	 * the FIP ToC and allowing the platform to have a say as
+	 * well.
+	 */
+	spsr = SPSR_64(mode, MODE_SP_ELX, DISABLE_ALL_EXCEPTIONS);
+	return spsr;
+}
+
+const mmap_region_t *plat_brcm_get_mmap(void)
+{
+	return plat_brcm_mmap;
+}