Opensource ML embedded evaluation kit
Change-Id: I12e807f19f5cacad7cef82572b6dd48252fd61fd
diff --git a/source/application/hal/platforms/bare-metal/bsp/mem_layout/mps3-sse-300.sct b/source/application/hal/platforms/bare-metal/bsp/mem_layout/mps3-sse-300.sct
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+; Copyright (c) 2021 Arm Limited. All rights reserved.
+; SPDX-License-Identifier: Apache-2.0
+;
+; Licensed under the Apache License, Version 2.0 (the "License");
+; you may not use this file except in compliance with the License.
+; You may obtain a copy of the License at
+;
+; http://www.apache.org/licenses/LICENSE-2.0
+;
+; Unless required by applicable law or agreed to in writing, software
+; distributed under the License is distributed on an "AS IS" BASIS,
+; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+; See the License for the specific language governing permissions and
+; limitations under the License.
+
+; *************************************************************
+; *** Scatter-Loading Description File ***
+; *************************************************************
+; Please see docs/sections/appendix.md for memory mapping information.
+;
+; Note: Ethos-U55 can access BRAM, internal SRAM and the DDR sections => activation buffers and
+; the model should only be placed in those regions.
+;
+;---------------------------------------------------------
+; First load region (ITCM)
+;---------------------------------------------------------
+LOAD_REGION_0 0x00000000 0x00080000
+{
+ ;-----------------------------------------------------
+ ; First part of code mem - 512kiB
+ ;-----------------------------------------------------
+ itcm.bin 0x00000000 0x00080000
+ {
+ *.o (RESET, +First)
+ * (InRoot$$Sections)
+
+ ; Essentially only RO-CODE, RO-DATA is in a
+ ; different region.
+ .ANY (+RO)
+ }
+
+ ;-----------------------------------------------------
+ ; 128kiB of 512kiB DTCM is used for any other RW or ZI
+ ; data. Note: this region is internal to the Cortex-M
+ ; CPU.
+ ;-----------------------------------------------------
+ dtcm.bin 0x20000000 0x00020000
+ {
+ ; Any R/W and/or zero initialised data
+ .ANY(+RW +ZI)
+ }
+
+ ;-----------------------------------------------------
+ ; 384kiB of stack space within the DTCM region. See
+ ; `dtcm.bin` for the first section. Note: by virtue of
+ ; being part of DTCM, this region is only accessible
+ ; from Cortex-M55.
+ ;-----------------------------------------------------
+ ARM_LIB_STACK 0x20020000 EMPTY ALIGN 8 0x00060000
+ {}
+
+ ;-----------------------------------------------------
+ ; SSE-300's internal SRAM of 4MiB - reserved for
+ ; activation buffers.
+ ; This region should have 3 cycle read latency from
+ ; both Cortex-M55 and Ethos-U55
+ ;-----------------------------------------------------
+ isram.bin 0x31000000 UNINIT ALIGN 16 0x00400000
+ {
+ ; activation buffers a.k.a tensor arena
+ *.o (.bss.NoInit.activation_buf)
+ }
+}
+
+;---------------------------------------------------------
+; Second load region (DDR)
+;---------------------------------------------------------
+LOAD_REGION_1 0x70000000 0x02000000
+{
+ ;-----------------------------------------------------
+ ; 32 MiB of DRAM space for neural network model,
+ ; input vectors and labels. If the activation buffer
+ ; size required by the network is bigger than the
+ ; SRAM size available, it is accommodated here.
+ ;-----------------------------------------------------
+ dram.bin 0x70000000 ALIGN 16 0x02000000
+ {
+ ; nn model's baked in input matrices
+ *.o (ifm)
+
+ ; nn model
+ *.o (nn_model)
+
+ ; labels
+ *.o (labels)
+
+ ; if the activation buffer (tensor arena) doesn't
+ ; fit in the SRAM region, we accommodate it here
+ *.o (activation_buf)
+ }
+
+ ;-----------------------------------------------------
+ ; First 256kiB of BRAM (FPGA SRAM) used for RO data.
+ ; Note: Total BRAM size available is 2MiB.
+ ;-----------------------------------------------------
+ bram.bin 0x11000000 ALIGN 8 0x00040000
+ {
+ ; RO data (incl. unwinding tables for debugging)
+ .ANY (+RO-DATA)
+ }
+
+ ;-----------------------------------------------------
+ ; Remaining part of the 2MiB BRAM used as heap space.
+ ; 0x00200000 - 0x00040000 = 0x001C0000 (1.75 MiB)
+ ;-----------------------------------------------------
+ ARM_LIB_HEAP 0x11040000 EMPTY ALIGN 8 0x001C0000
+ {}
+}