nxp: platform files for bl2 and bl31 setup
For NXP platforms:
- Setup files for BL2 and BL31
- Other supporting files.
Signed-off-by: Pankaj Gupta <pankaj.gupta@nxp.com>
Change-Id: I36a1183a0652701bdede9e02d41eb976accbb017
diff --git a/plat/nxp/common/setup/ls_common.c b/plat/nxp/common/setup/ls_common.c
new file mode 100644
index 0000000..a6946e1
--- /dev/null
+++ b/plat/nxp/common/setup/ls_common.c
@@ -0,0 +1,240 @@
+/*
+ * Copyright 2018-2020 NXP
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ */
+
+#include <assert.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 <mmu_def.h>
+#include <plat/common/platform.h>
+
+#include "plat_common.h"
+#include "platform_def.h"
+
+const mmap_region_t *plat_ls_get_mmap(void);
+
+/*
+ * Table of memory regions for various BL stages to map using the MMU.
+ * This doesn't include Trusted SRAM as arm_setup_page_tables() already
+ * takes care of mapping it.
+ *
+ * The flash needs to be mapped as writable in order to erase the FIP's Table of
+ * Contents in case of unrecoverable error (see plat_error_handler()).
+ */
+#ifdef IMAGE_BL2
+const mmap_region_t plat_ls_mmap[] = {
+ LS_MAP_CCSR,
+ {0}
+};
+#endif
+
+#ifdef IMAGE_BL31
+const mmap_region_t plat_ls_mmap[] = {
+ LS_MAP_CCSR,
+#ifdef NXP_DCSR_ADDR
+ LS_MAP_DCSR,
+#endif
+ LS_MAP_OCRAM,
+ {0}
+};
+#endif
+#ifdef IMAGE_BL32
+const mmap_region_t plat_ls_mmap[] = {
+ LS_MAP_CCSR,
+ LS_MAP_BL32_SEC_MEM,
+ {0}
+};
+#endif
+
+/* Weak definitions may be overridden in specific NXP SoC */
+#pragma weak plat_get_ns_image_entrypoint
+#pragma weak plat_ls_get_mmap
+
+#if defined(IMAGE_BL31) || !defined(CONFIG_DDR_FIP_IMAGE)
+static void mmap_add_ddr_regions_statically(void)
+{
+ int i = 0;
+ dram_regions_info_t *info_dram_regions = get_dram_regions_info();
+ /* MMU map for Non-Secure DRAM Regions */
+ VERBOSE("DRAM Region %d: %p - %p\n", i,
+ (void *) info_dram_regions->region[i].addr,
+ (void *) (info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size
+ - 1));
+ mmap_add_region(info_dram_regions->region[i].addr,
+ info_dram_regions->region[i].addr,
+ info_dram_regions->region[i].size,
+ MT_MEMORY | MT_RW | MT_NS);
+
+ /* MMU map for Secure DDR Region on DRAM-0 */
+ if (info_dram_regions->region[i].size >
+ (NXP_SECURE_DRAM_SIZE + NXP_SP_SHRD_DRAM_SIZE)) {
+ VERBOSE("Secure DRAM Region %d: %p - %p\n", i,
+ (void *) (info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size),
+ (void *) (info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size
+ + NXP_SECURE_DRAM_SIZE
+ + NXP_SP_SHRD_DRAM_SIZE
+ - 1));
+ mmap_add_region((info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size),
+ (info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size),
+ (NXP_SECURE_DRAM_SIZE + NXP_SP_SHRD_DRAM_SIZE),
+ MT_MEMORY | MT_RW | MT_SECURE);
+ }
+
+#ifdef IMAGE_BL31
+ for (i = 1; i < info_dram_regions->num_dram_regions; i++) {
+ if (info_dram_regions->region[i].size == 0)
+ break;
+ VERBOSE("DRAM Region %d: %p - %p\n", i,
+ (void *) info_dram_regions->region[i].addr,
+ (void *) (info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size
+ - 1));
+ mmap_add_region(info_dram_regions->region[i].addr,
+ info_dram_regions->region[i].addr,
+ info_dram_regions->region[i].size,
+ MT_MEMORY | MT_RW | MT_NS);
+ }
+#endif
+}
+#endif
+
+#if defined(PLAT_XLAT_TABLES_DYNAMIC)
+void mmap_add_ddr_region_dynamically(void)
+{
+ int i = 0;
+ dram_regions_info_t *info_dram_regions = get_dram_regions_info();
+ /* MMU map for Non-Secure DRAM Regions */
+ VERBOSE("DRAM Region %d: %p - %p\n", i,
+ (void *) info_dram_regions->region[i].addr,
+ (void *) (info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size
+ - 1));
+ mmap_add_dynamic_region(info_dram_regions->region[i].addr,
+ info_dram_regions->region[i].addr,
+ info_dram_regions->region[i].size,
+ MT_MEMORY | MT_RW | MT_NS);
+
+ /* MMU map for Secure DDR Region on DRAM-0 */
+ if (info_dram_regions->region[i].size >
+ (NXP_SECURE_DRAM_SIZE + NXP_SP_SHRD_DRAM_SIZE)) {
+ VERBOSE("Secure DRAM Region %d: %p - %p\n", i,
+ (void *) (info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size),
+ (void *) (info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size
+ + NXP_SECURE_DRAM_SIZE
+ + NXP_SP_SHRD_DRAM_SIZE
+ - 1));
+ mmap_add_dynamic_region((info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size),
+ (info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size),
+ (NXP_SECURE_DRAM_SIZE + NXP_SP_SHRD_DRAM_SIZE),
+ MT_MEMORY | MT_RW | MT_SECURE);
+ }
+
+#ifdef IMAGE_BL31
+ for (i = 1; i < info_dram_regions->num_dram_regions; i++) {
+ if (info_dram_regions->region[i].size == 0) {
+ break;
+ }
+ VERBOSE("DRAM Region %d: %p - %p\n", i,
+ (void *) info_dram_regions->region[i].addr,
+ (void *) (info_dram_regions->region[i].addr
+ + info_dram_regions->region[i].size
+ - 1));
+ mmap_add_dynamic_region(info_dram_regions->region[i].addr,
+ info_dram_regions->region[i].addr,
+ info_dram_regions->region[i].size,
+ MT_MEMORY | MT_RW | MT_NS);
+ }
+#endif
+}
+#endif
+
+/*
+ * 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 ls_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("Memory 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_ls_get_mmap());
+
+
+#if defined(IMAGE_BL31) || !defined(CONFIG_DDR_FIP_IMAGE)
+ mmap_add_ddr_regions_statically();
+#endif
+
+ /* Create the page tables to reflect the above mappings */
+ init_xlat_tables();
+}
+
+/*******************************************************************************
+ * Returns NXP platform specific memory map regions.
+ ******************************************************************************/
+const mmap_region_t *plat_ls_get_mmap(void)
+{
+ return plat_ls_mmap;
+}