From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 11:13:47 +0200
Subject: Adding upstream version 2.8.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../marvell/armada/common/aarch64/marvell_common.c | 137 +++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 plat/marvell/armada/common/aarch64/marvell_common.c

(limited to 'plat/marvell/armada/common/aarch64/marvell_common.c')

diff --git a/plat/marvell/armada/common/aarch64/marvell_common.c b/plat/marvell/armada/common/aarch64/marvell_common.c
new file mode 100644
index 0000000..21a62d4
--- /dev/null
+++ b/plat/marvell/armada/common/aarch64/marvell_common.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#include <assert.h>
+
+#include <platform_def.h>
+
+#include <arch.h>
+#include <arch_helpers.h>
+#include <common/debug.h>
+#include <lib/mmio.h>
+#include <lib/xlat_tables/xlat_tables_v2.h>
+
+#include <plat_marvell.h>
+
+/* Weak definitions may be overridden in specific ARM standard platform */
+#pragma weak plat_get_ns_image_entrypoint
+#pragma weak plat_marvell_get_mmap
+
+/*
+ * Set up the page tables for the generic and platform-specific memory regions.
+ * The extents of the generic memory regions are specified by the function
+ * arguments and consist of:
+ * - Trusted SRAM seen by the BL image;
+ * - Code section;
+ * - Read-only data section;
+ * - Coherent memory region, if applicable.
+ */
+void marvell_setup_page_tables(uintptr_t total_base,
+			       size_t total_size,
+			       uintptr_t code_start,
+			       uintptr_t code_limit,
+			       uintptr_t rodata_start,
+			       uintptr_t rodata_limit
+#if USE_COHERENT_MEM
+			       ,
+			       uintptr_t coh_start,
+			       uintptr_t coh_limit
+#endif
+			   )
+{
+	/*
+	 * Map the Trusted SRAM with appropriate memory attributes.
+	 * Subsequent mappings will adjust the attributes for specific regions.
+	 */
+	VERBOSE("Trusted SRAM seen by this BL image: %p - %p\n",
+		(void *) total_base, (void *) (total_base + total_size));
+	mmap_add_region(total_base, total_base,
+			total_size,
+			MT_MEMORY | MT_RW | MT_SECURE);
+
+	/* Re-map the code section */
+	VERBOSE("Code region: %p - %p\n",
+		(void *) code_start, (void *) code_limit);
+	mmap_add_region(code_start, code_start,
+			code_limit - code_start,
+			MT_CODE | MT_SECURE);
+
+	/* Re-map the read-only data section */
+	VERBOSE("Read-only data region: %p - %p\n",
+		(void *) rodata_start, (void *) rodata_limit);
+	mmap_add_region(rodata_start, rodata_start,
+			rodata_limit - rodata_start,
+			MT_RO_DATA | MT_SECURE);
+
+#if USE_COHERENT_MEM
+	/* Re-map the coherent memory region */
+	VERBOSE("Coherent region: %p - %p\n",
+		(void *) coh_start, (void *) coh_limit);
+	mmap_add_region(coh_start, coh_start,
+			coh_limit - coh_start,
+			MT_DEVICE | MT_RW | MT_SECURE);
+#endif
+
+	/* Now (re-)map the platform-specific memory regions */
+	mmap_add(plat_marvell_get_mmap());
+
+	/* Create the page tables to reflect the above mappings */
+	init_xlat_tables();
+}
+
+unsigned long plat_get_ns_image_entrypoint(void)
+{
+	return PLAT_MARVELL_NS_IMAGE_OFFSET;
+}
+
+/*****************************************************************************
+ * Gets SPSR for BL32 entry
+ *****************************************************************************
+ */
+uint32_t marvell_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;
+}
+
+/*****************************************************************************
+ * Gets SPSR for BL33 entry
+ *****************************************************************************
+ */
+uint32_t marvell_get_spsr_for_bl33_entry(void)
+{
+	unsigned long el_status;
+	unsigned int mode;
+	uint32_t spsr;
+
+	/* Figure out what mode we enter the non-secure world in */
+	el_status = read_id_aa64pfr0_el1() >> ID_AA64PFR0_EL2_SHIFT;
+	el_status &= ID_AA64PFR0_ELX_MASK;
+
+	mode = (el_status) ? 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;
+}
+
+/*****************************************************************************
+ * Returns ARM platform specific memory map regions.
+ *****************************************************************************
+ */
+const mmap_region_t *plat_marvell_get_mmap(void)
+{
+	return plat_marvell_mmap;
+}
+
-- 
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