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| author | Erhan Kurubas <erhan.kurubas@espressif.com> | 2023-07-10 23:47:06 +0200 |
|---|---|---|
| committer | Antonio Borneo <borneo.antonio@gmail.com> | 2023-12-10 13:31:57 +0000 |
| commit | 4003762177b1aec2ab27eaa6946b47f13c457bbc (patch) | |
| tree | ddeb6b57c126b8f29d2796249fe730b4e3f7a2ed /contrib | |
| parent | d06d8ea3e4d0057dd13a6dac792b1ad7c246aebb (diff) | |
| download | riscv-openocd-4003762177b1aec2ab27eaa6946b47f13c457bbc.zip riscv-openocd-4003762177b1aec2ab27eaa6946b47f13c457bbc.tar.gz riscv-openocd-4003762177b1aec2ab27eaa6946b47f13c457bbc.tar.bz2 | |
target/espressif: add algorithm support to xtensa chips
Also includes esp_xtensa flasher stub jumper binary.
Signed-off-by: Erhan Kurubas <erhan.kurubas@espressif.com>
Change-Id: I054ce31033ca6a87afe9b5325b545338a7d8fe8f
Reviewed-on: https://review.openocd.org/c/openocd/+/7772
Tested-by: jenkins
Reviewed-by: Ian Thompson <ianst@cadence.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Diffstat (limited to 'contrib')
3 files changed, 82 insertions, 0 deletions
diff --git a/contrib/loaders/trampoline/espressif/xtensa/Makefile b/contrib/loaders/trampoline/espressif/xtensa/Makefile new file mode 100644 index 0000000..bd1f630 --- /dev/null +++ b/contrib/loaders/trampoline/espressif/xtensa/Makefile @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: GPL-2.0-or-later + +# Espressif Xtensa Makefile to compile flasher stub wrapper +# Copyright (C) 2023 Espressif Systems Ltd. + +# Prefix for Espressif xtensa cross compilers (can include a directory path) +CROSS ?= xtensa-esp32-elf- + +APP_ARCH := xtensa +APP_CHIP_PATH := $(shell pwd) +SRCS := $(APP_CHIP_PATH)/esp_xtensa_stub_tramp_win.S + +BIN2C = ../../../../../src/helper/bin2char.sh +BUILD_DIR = build + +APP = esp_xtensa_stub_tramp_win +APP_OBJ = $(BUILD_DIR)/$(APP).o +APP_BIN = $(BUILD_DIR)/$(APP).bin +APP_CODE = $(APP).inc + +.PHONY: all clean + +all: $(BUILD_DIR) $(APP_OBJ) $(APP_CODE) + +$(BUILD_DIR): + $(Q) mkdir $@ + +$(APP_OBJ): $(SRCS) + @echo " CC $^ -> $@" + $(Q) $(CROSS)gcc -c $(CFLAGS) -o $@ $^ + +$(APP_CODE): $(APP_OBJ) + @echo " CC $^ -> $@" + $(Q) $(CROSS)objcopy -O binary -j.text $^ $(APP_BIN) + $(Q) $(BIN2C) < $(APP_BIN) > $@ + +clean: + $(Q) rm -rf $(BUILD_DIR) diff --git a/contrib/loaders/trampoline/espressif/xtensa/esp_xtensa_stub_tramp_win.S b/contrib/loaders/trampoline/espressif/xtensa/esp_xtensa_stub_tramp_win.S new file mode 100644 index 0000000..e0c827d --- /dev/null +++ b/contrib/loaders/trampoline/espressif/xtensa/esp_xtensa_stub_tramp_win.S @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +/*************************************************************************** + * Xtensa flasher stub wrapper * + * Copyright (C) 2017 Espressif Systems Ltd. * + ***************************************************************************/ + +/* + * Expects : + * a0 = zero + * a1 = stack_base + stack_size - 16, 16 bytes aligned + * a8 = address of the function to call + * Params : + * a2 = command arg0, result (out) + * a3 = command arg1 + * a4 = command arg2 + * a5 = command arg3 + * a6 = command arg4 + * Maximum 5 user args + */ + .text + + .align 4 +_stub_enter: + /* initialize initial stack frame for callx8 */ + addi a9, sp, 32 /* point 16 past extra save area */ + s32e a9, sp, -12 /* access to extra save area */ + /* prepare args */ + mov a10, a2 + mov a11, a3 + mov a12, a4 + mov a13, a5 + mov a14, a6 + /* call stub */ + callx8 a8 + /* prepare return value */ + mov a2, a10 + break 0,0 + +_idle_loop: + j _idle_loop diff --git a/contrib/loaders/trampoline/espressif/xtensa/esp_xtensa_stub_tramp_win.inc b/contrib/loaders/trampoline/espressif/xtensa/esp_xtensa_stub_tramp_win.inc new file mode 100644 index 0000000..1657223 --- /dev/null +++ b/contrib/loaders/trampoline/espressif/xtensa/esp_xtensa_stub_tramp_win.inc @@ -0,0 +1,3 @@ +/* Autogenerated with ../../../../../src/helper/bin2char.sh */ +0x92,0xc1,0x20,0x90,0xd1,0x49,0xad,0x02,0xbd,0x03,0xcd,0x04,0xdd,0x05,0x60,0xe6, +0x20,0xe0,0x08,0x00,0x2d,0x0a,0x00,0x40,0x00,0x06,0xff,0xff, |