1 files changed, 180 insertions, 0 deletions
diff --git a/plat/mediatek/mt6795/bl31.ld.S b/plat/mediatek/mt6795/bl31.ld.S
new file mode 100644
index 00000000..0f60a0c6
--- /dev/null
+++ b/plat/mediatek/mt6795/bl31.ld.S
@@ -0,0 +1,180 @@
+/*
+ * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <platform_def.h>
+
+OUTPUT_FORMAT(PLATFORM_LINKER_FORMAT)
+OUTPUT_ARCH(PLATFORM_LINKER_ARCH)
+ENTRY(bl31_entrypoint)
+
+
+MEMORY {
+	RAM (rwx): ORIGIN = BL31_BASE, LENGTH = BL31_TZRAM_SIZE
+	RAM2 (rwx): ORIGIN = TZRAM2_BASE, LENGTH = TZRAM2_SIZE
+}
+
+
+SECTIONS
+{
+    . = BL31_BASE;
+
+    ASSERT(. == ALIGN(2048),
+           "vector base is not aligned on a 2K boundary.")
+
+    __RO_START__ = .;
+    vector . : {
+        *(.vectors)
+    } >RAM
+
+    ASSERT(. == ALIGN(4096),
+           "BL31_BASE address is not aligned on a page boundary.")
+
+    ro . : {
+        *bl31_entrypoint.o(.text*)
+        *(.text*)
+        *(.rodata*)
+
+        /* Ensure 8-byte alignment for descriptors and ensure inclusion */
+        . = ALIGN(8);
+        __RT_SVC_DESCS_START__ = .;
+        KEEP(*(rt_svc_descs))
+        __RT_SVC_DESCS_END__ = .;
+
+        /*
+         * Ensure 8-byte alignment for cpu_ops so that its fields are also
+         * aligned. Also ensure cpu_ops inclusion.
+         */
+        . = ALIGN(8);
+        __CPU_OPS_START__ = .;
+        KEEP(*(cpu_ops))
+        __CPU_OPS_END__ = .;
+
+        __RO_END_UNALIGNED__ = .;
+        /*
+         * Memory page(s) mapped to this section will be marked as read-only,
+         * executable.  No RW data from the next section must creep in.
+         * Ensure the rest of the current memory page is unused.
+         */
+        . = NEXT(4096);
+        __RO_END__ = .;
+    } >RAM
+
+    ASSERT(__CPU_OPS_END__ > __CPU_OPS_START__,
+           "cpu_ops not defined for this platform.")
+
+    /*
+     * Define a linker symbol to mark start of the RW memory area for this
+     * image.
+     */
+    __RW_START__ = . ;
+
+    /*
+     * .data must be placed at a lower address than the stacks if the stack
+     * protector is enabled. Alternatively, the .data.stack_protector_canary
+     * section can be placed independently of the main .data section.
+     */
+    .data . : {
+        __DATA_START__ = .;
+        *(.data*)
+        __DATA_END__ = .;
+    } >RAM
+
+#ifdef BL31_PROGBITS_LIMIT
+    ASSERT(. <= BL31_PROGBITS_LIMIT, "BL3-1 progbits has exceeded its limit.")
+#endif
+
+    stacks (NOLOAD) : {
+        __STACKS_START__ = .;
+        *(tzfw_normal_stacks)
+        __STACKS_END__ = .;
+    } >RAM
+
+    /*
+     * The .bss section gets initialised to 0 at runtime.
+     * Its base address should be 16-byte aligned for better performance of the
+     * zero-initialization code.
+     */
+    .bss (NOLOAD) : ALIGN(16) {
+        __BSS_START__ = .;
+        *(.bss*)
+        *(COMMON)
+#if !USE_COHERENT_MEM
+        /*
+         * Bakery locks are stored in normal .bss memory
+         *
+         * Each lock's data is spread across multiple cache lines, one per CPU,
+         * but multiple locks can share the same cache line.
+         * The compiler will allocate enough memory for one CPU's bakery locks,
+         * the remaining cache lines are allocated by the linker script
+         */
+        . = ALIGN(CACHE_WRITEBACK_GRANULE);
+        __BAKERY_LOCK_START__ = .;
+        *(bakery_lock)
+        . = ALIGN(CACHE_WRITEBACK_GRANULE);
+        __PERCPU_BAKERY_LOCK_SIZE__ = ABSOLUTE(. - __BAKERY_LOCK_START__);
+        . = . + (__PERCPU_BAKERY_LOCK_SIZE__ * (PLATFORM_CORE_COUNT - 1));
+        __BAKERY_LOCK_END__ = .;
+#ifdef PLAT_PERCPU_BAKERY_LOCK_SIZE
+    ASSERT(__PERCPU_BAKERY_LOCK_SIZE__ == PLAT_PERCPU_BAKERY_LOCK_SIZE,
+        "PLAT_PERCPU_BAKERY_LOCK_SIZE does not match bakery lock requirements");
+#endif
+#endif
+        __BSS_END__ = .;
+        __RW_END__ = .;
+    } >RAM
+
+    ASSERT(. <= BL31_LIMIT, "BL3-1 image has exceeded its limit.")
+
+    /*
+     * The xlat_table section is for full, aligned page tables (4K).
+     * Removing them from .bss avoids forcing 4K alignment on
+     * the .bss section and eliminates the unecessary zero init
+     */
+    xlat_table (NOLOAD) : {
+        *(xlat_table)
+    } >RAM2
+
+#if USE_COHERENT_MEM
+    /*
+     * The base address of the coherent memory section must be page-aligned (4K)
+     * to guarantee that the coherent data are stored on their own pages and
+     * are not mixed with normal data.  This is required to set up the correct
+     * memory attributes for the coherent data page tables.
+     */
+    coherent_ram (NOLOAD) : ALIGN(4096) {
+        __COHERENT_RAM_START__ = .;
+        /*
+         * Bakery locks are stored in coherent memory
+         *
+         * Each lock's data is contiguous and fully allocated by the compiler
+         */
+        *(bakery_lock)
+        *(tzfw_coherent_mem)
+        __COHERENT_RAM_END_UNALIGNED__ = .;
+        /*
+         * Memory page(s) mapped to this section will be marked
+         * as device memory.  No other unexpected data must creep in.
+         * Ensure the rest of the current memory page is unused.
+         */
+        . = NEXT(4096);
+        __COHERENT_RAM_END__ = .;
+    } >RAM2
+#endif
+
+    /*
+     * Define a linker symbol to mark end of the RW memory area for this
+     * image.
+     */
+    __BL31_END__ = .;
+
+    __BSS_SIZE__ = SIZEOF(.bss);
+#if USE_COHERENT_MEM
+    __COHERENT_RAM_UNALIGNED_SIZE__ =
+        __COHERENT_RAM_END_UNALIGNED__ - __COHERENT_RAM_START__;
+#endif
+
+    ASSERT(. <= TZRAM2_LIMIT, "TZRAM2 image has exceeded its limit.")
+}