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risc-v/espressif: Add support for ESP32-C6

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Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>
This commit is contained in:
Gustavo Henrique Nihei 2023-02-24 11:36:14 -03:00 committed by Petro Karashchenko
parent 17f7f6e86d
commit c149e52791
15 changed files with 1092 additions and 11 deletions
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60
arch/risc-v/src/espressif/Kconfig
View File

@ -34,16 +34,42 @@ config ESPRESSIF_ESP32C3
---help---
ESP32-C3 chip with a single RISC-V IMC core, no embedded Flash memory
config ESPRESSIF_ESP32C6
bool "ESP32-C6"
select ARCH_RV32
select ARCH_RV_ISA_M
select ARCH_RV_ISA_A
select ARCH_RV_ISA_C
select ARCH_VECNOTIRQ
select ARCH_HAVE_BOOTLOADER
select ARCH_HAVE_MPU
select ARCH_HAVE_RESET
select LIBC_ARCH_MEMCPY
select LIBC_ARCH_MEMCHR
select LIBC_ARCH_MEMCMP
select LIBC_ARCH_MEMMOVE
select LIBC_ARCH_MEMSET
select LIBC_ARCH_STRCHR
select LIBC_ARCH_STRCMP
select LIBC_ARCH_STRCPY
select LIBC_ARCH_STRLCPY
select LIBC_ARCH_STRNCPY
select LIBC_ARCH_STRLEN
select LIBC_ARCH_STRNLEN
---help---
Espressif ESP32-C6 (RV32IMAC).
endchoice # ESPRESSIF_CHIP_SERIES
config ESPRESSIF_CHIP_SERIES
string
default "esp32c3" if ESPRESSIF_ESP32C3
default "esp32c6" if ESPRESSIF_ESP32C6
default "unknown"
choice ESPRESSIF_FLASH
prompt "Flash Size"
default ESPRESSIF_FLASH_4M if ESPRESSIF_ESP32C3
default ESPRESSIF_FLASH_4M if ESPRESSIF_ESP32C3 || ESPRESSIF_ESP32C6
config ESPRESSIF_FLASH_2M
bool "2 MB"
@ -61,7 +87,7 @@ config ESPRESSIF_FLASH_DETECT
choice ESPRESSIF_CPU_FREQ
prompt "CPU frequency"
default ESPRESSIF_CPU_FREQ_160 if ESPRESSIF_ESP32C3
default ESPRESSIF_CPU_FREQ_160 if ESPRESSIF_ESP32C3 || ESPRESSIF_ESP32C6
---help---
CPU frequency to be set on application startup.
@ -140,22 +166,32 @@ if ESPRESSIF_UART0
config ESPRESSIF_UART0_TXPIN
int "UART0 TX Pin"
default 21 if ESPRESSIF_ESP32C3
default 16 if ESPRESSIF_ESP32C6
range 0 21 if ESPRESSIF_ESP32C3
range 0 30 if ESPRESSIF_ESP32C6
config ESPRESSIF_UART0_RXPIN
int "UART0 RX Pin"
default 20 if ESPRESSIF_ESP32C3
default 17 if ESPRESSIF_ESP32C6
range 0 21 if ESPRESSIF_ESP32C3
range 0 30 if ESPRESSIF_ESP32C6
config ESPRESSIF_UART0_RTSPIN
int "UART0 RTS Pin"
depends on SERIAL_IFLOWCONTROL
default 16 if ESPRESSIF_ESP32C3
range 0 21
default 15 if ESPRESSIF_ESP32C6
range 0 21 if ESPRESSIF_ESP32C3
range 0 30 if ESPRESSIF_ESP32C6
config ESPRESSIF_UART0_CTSPIN
int "UART0 CTS Pin"
depends on SERIAL_OFLOWCONTROL
default 15 if ESPRESSIF_ESP32C3
range 0 21
default 14 if ESPRESSIF_ESP32C6
range 0 21 if ESPRESSIF_ESP32C3
range 0 30 if ESPRESSIF_ESP32C6
endif # ESPRESSIF_UART0
@ -163,23 +199,25 @@ if ESPRESSIF_UART1
config ESPRESSIF_UART1_TXPIN
int "UART1 TX Pin"
default 8 if ESPRESSIF_ESP32C3
default 8 if ESPRESSIF_ESP32C3 || ESPRESSIF_ESP32C6
config ESPRESSIF_UART1_RXPIN
int "UART1 RX Pin"
default 9 if ESPRESSIF_ESP32C3
default 9 if ESPRESSIF_ESP32C3 || ESPRESSIF_ESP32C6
config ESPRESSIF_UART1_RTSPIN
int "UART1 RTS Pin"
depends on SERIAL_IFLOWCONTROL
default 1 if ESPRESSIF_ESP32C3
range 0 21
default 1 if ESPRESSIF_ESP32C3 || ESPRESSIF_ESP32C6
range 0 21 if ESPRESSIF_ESP32C3
range 0 30 if ESPRESSIF_ESP32C6
config ESPRESSIF_UART1_CTSPIN
int "UART1 CTS Pin"
depends on SERIAL_OFLOWCONTROL
default 2 if ESPRESSIF_ESP32C3
range 0 21
default 2 if ESPRESSIF_ESP32C3 || ESPRESSIF_ESP32C6
range 0 21 if ESPRESSIF_ESP32C3
range 0 30 if ESPRESSIF_ESP32C6
endif # ESPRESSIF_UART1
@ -210,7 +248,7 @@ endchoice # ESPRESSIF_FLASH_MODE
choice ESPRESSIF_FLASH_FREQ
prompt "SPI Flash frequency"
default ESPRESSIF_FLASH_FREQ_40M
default ESPRESSIF_FLASH_FREQ_80M if ESPRESSIF_ESP32C3 || ESPRESSIF_ESP32C6
---help---
SPI Flash frequency.

98
arch/risc-v/src/espressif/hal_esp32c6.mk Normal file
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@ -0,0 +1,98 @@
############################################################################
# arch/risc-v/src/espressif/esp32c6.mk
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you 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.
#
############################################################################
# Include header paths
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/driver/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/private_include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/private_include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_common/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/include/esp_private
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/include/soc
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/$(CHIP_SERIES)
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/$(CHIP_SERIES)/private_include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/include/$(CHIP_SERIES)
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/$(CHIP_SERIES)
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_system/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_system/port/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_system/port/include/private/esp_private
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_system/port/public_compat
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/hal/$(CHIP_SERIES)/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/hal/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/hal/platform_port/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/log
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/log/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/riscv/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/soc/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/soc/$(CHIP_SERIES)/include
INCLUDES += $(INCDIR_PREFIX)$(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/nuttx/$(CHIP_SERIES)/include
# Linker scripts
ARCHSCRIPT += $(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/$(CHIP_SERIES)/ld/$(CHIP_SERIES).rom.ld
ARCHSCRIPT += $(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/$(CHIP_SERIES)/ld/$(CHIP_SERIES).rom.api.ld
ARCHSCRIPT += $(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/$(CHIP_SERIES)/ld/$(CHIP_SERIES).rom.newlib.ld
ARCHSCRIPT += $(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/$(CHIP_SERIES)/ld/$(CHIP_SERIES).rom.spiflash.ld
ARCHSCRIPT += $(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/$(CHIP_SERIES)/ld/$(CHIP_SERIES).rom.version.ld
ARCHSCRIPT += $(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/$(CHIP_SERIES)/ld/$(CHIP_SERIES).rom.wdt.ld
ARCHSCRIPT += $(ARCH_SRCDIR)/chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/soc/$(CHIP_SERIES)/ld/$(CHIP_SERIES).peripherals.ld
# Source files
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/src/esp_efuse_api.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/src/esp_efuse_utility.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/esp_efuse_fields.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/esp_efuse_table.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/efuse/$(CHIP_SERIES)/esp_efuse_utility.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/cpu.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/esp_clk.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/modem_clock.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/periph_ctrl.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/regi2c_ctrl.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/clk_tree_common.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/$(CHIP_SERIES)/cpu_region_protect.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/$(CHIP_SERIES)/clk_tree.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/$(CHIP_SERIES)/pmu_init.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/$(CHIP_SERIES)/pmu_param.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/$(CHIP_SERIES)/rtc_clk.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/$(CHIP_SERIES)/rtc_time.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/$(CHIP_SERIES)/sar_periph_ctrl.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_hw_support/port/$(CHIP_SERIES)/systimer.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/patches/esp_rom_regi2c_$(CHIP_SERIES).c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/patches/esp_rom_systimer.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_rom/patches/esp_rom_wdt.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_system/port/brownout.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/esp_system/port/soc/$(CHIP_SERIES)/clk.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/hal/brownout_hal.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/hal/efuse_hal.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/hal/uart_hal.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/hal/uart_hal_iram.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/hal/$(CHIP_SERIES)/clk_tree_hal.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/hal/$(CHIP_SERIES)/efuse_hal.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/hal/$(CHIP_SERIES)/modem_clock_hal.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/log/log.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/log/log_noos.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/riscv/interrupt.c
CHIP_CSRCS += chip/$(ESP_HAL_3RDPARTY_UNPACK)/components/soc/$(CHIP_SERIES)/gpio_periph.c

10
boards/Kconfig
View File

@ -411,6 +411,12 @@ config ARCH_BOARD_ESP32S3_EYE
featuring the ESP32-S3 CPU with a 2-Megapixel camera, an LCD display,
a microphone, an 8 MB Octal PSRAM and an 8 MB flash.
config ARCH_BOARD_ESP32C6_GENERIC
bool "Espressif ESP32-C6 Generic DevKit"
depends on ESPRESSIF_ESP32C6
---help---
The ESP32-C6 DevKit features the ESP32-C6 CPU with a RISC-V core.
config ARCH_BOARD_ET_STM32_STAMP
bool "Futurlec: ET-STM32 Stamp"
depends on ARCH_CHIP_STM32F103RE
@ -2787,6 +2793,7 @@ config ARCH_BOARD
default "esp32s3-devkit" if ARCH_BOARD_ESP32S3_DEVKIT
default "esp32s3-eye" if ARCH_BOARD_ESP32S3_EYE
default "esp32c6-devkit" if ARCH_BOARD_ESP32C6_DEVKIT
default "esp32c6-generic" if ARCH_BOARD_ESP32C6_GENERIC
default "et-stm32-stamp" if ARCH_BOARD_ET_STM32_STAMP
default "tlsr8278adk80d" if ARCH_BOARD_TLSR8278ADK80D
default "ez80f910200kitg" if ARCH_BOARD_EZ80F910200KITG
@ -3779,6 +3786,9 @@ endif
if ARCH_BOARD_ESP32C6_DEVKIT
source "boards/risc-v/esp32c6/esp32c6-devkit/Kconfig"
endif
if ARCH_BOARD_ESP32C6_GENERIC
source "boards/risc-v/espressif/esp32c6-generic/Kconfig"
endif
if ARCH_BOARD_SIM
source "boards/sim/sim/sim/Kconfig"
endif

29
boards/risc-v/espressif/common/scripts/esp32c6_aliases.ld Normal file
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@ -0,0 +1,29 @@
/****************************************************************************
* boards/risc-v/espressif/common/scripts/esp32c6_aliases.ld
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
#ifdef CONFIG_ESPRESSIF_BLE
/* Lower-case aliases for BLE library symbols not compliant to nxstyle */
api_vhci_host_check_send_available = API_vhci_host_check_send_available;
api_vhci_host_send_packet = API_vhci_host_send_packet;
api_vhci_host_register_callback = API_vhci_host_register_callback;
#endif

116
boards/risc-v/espressif/common/scripts/esp32c6_flat_memory.ld Normal file
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@ -0,0 +1,116 @@
/****************************************************************************
* boards/risc-v/espressif/common/scripts/esp32c6_flat_memory.ld
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* ESP32-C6 Linker Script Memory Layout
*
* This file describes the memory layout (memory blocks) as virtual
* memory addresses.
*
* esp32c6_<legacy/mcuboot>_sections.ld contains output sections to link compiler
* output into these memory blocks.
*
****************************************************************************/
#include <nuttx/config.h>
#define SRAM_IRAM_START 0x40800000
#define SRAM_DRAM_START 0x40800000
#define I_D_SRAM_OFFSET (SRAM_IRAM_START - SRAM_DRAM_START)
/* 2nd stage bootloader iram_loader_seg start address */
#define SRAM_DRAM_END 0x40880000 - I_D_SRAM_OFFSET
#define SRAM_IRAM_ORG (SRAM_IRAM_START)
#define SRAM_DRAM_ORG (SRAM_DRAM_START)
#define I_D_SRAM_SIZE SRAM_DRAM_END - SRAM_DRAM_ORG
/* IDRAM0_2_SEG_SIZE_DEFAULT is used when page size is 64KB */
#define CONFIG_MMU_PAGE_SIZE 0x10000
#define IDRAM0_2_SEG_SIZE (CONFIG_MMU_PAGE_SIZE << 8)
#define DRAM0_0_SEG_LEN I_D_SRAM_SIZE
MEMORY
{
/* Below values assume the flash cache is on, and have the blocks this
* uses subtracted from the length of the various regions. The 'data access
* port' dram/drom regions map to the same iram/irom regions but are
* connected to the data port of the CPU and e.g. allow bytewise access.
*/
iram0_0_seg (RX) : org = SRAM_IRAM_ORG, len = I_D_SRAM_SIZE
/* Flash mapped instruction data.
*
* The 0x20 offset is a convenience for the app binary image generation.
* Flash cache has 64KB pages. The .bin file which is flashed to the chip
* has a 0x18 byte file header, and each segment has a 0x08 byte segment
* header. Setting this offset makes it simple to meet the flash cache MMU's
* constraint that (paddr % 64KB == vaddr % 64KB).
*/
irom_seg (RX) : org = 0x42000020, len = IDRAM0_2_SEG_SIZE - 0x20
/* Shared data RAM, excluding memory reserved for ROM bss/data/stack.
* Enabling Bluetooth & Trace Memory features in menuconfig will decrease
* the amount of RAM available.
*/
dram0_0_seg (RW) : org = SRAM_DRAM_ORG, len = DRAM0_0_SEG_LEN
/* Flash mapped constant data.
*
* The 0x20 offset is a convenience for the app binary image generation.
* Flash cache has 64KB pages. The .bin file which is flashed to the chip
* has a 0x18 byte file header, and each segment has a 0x08 byte segment
* header. Setting this offset makes it simple to meet the flash cache MMU's
* constraint that (paddr % 64KB == vaddr % 64KB).
*/
drom_seg (R) : org = 0x42000020, len = IDRAM0_2_SEG_SIZE - 0x20
/* RTC fast memory (executable). Persists over deep sleep. */
lp_ram_seg (RWX) : org = 0x50000000, len = 0x4000
}
/* The lines below define location alias for .rtc.data section
* ESP32-C6 has no distinguished LP(RTC) fast and slow memory sections,
* instead, there is a unified LP_RAM section.
* Thus, the following region segments are not configurable like on other targets
*/
REGION_ALIAS("rtc_iram_seg", lp_ram_seg);
REGION_ALIAS("rtc_data_seg", rtc_iram_seg);
REGION_ALIAS("rtc_slow_seg", rtc_iram_seg);
REGION_ALIAS("rtc_data_location", rtc_iram_seg);
#if CONFIG_ESPRESSIF_RUN_IRAM
REGION_ALIAS("default_rodata_seg", dram0_0_seg);
REGION_ALIAS("default_code_seg", iram0_0_seg);
#else
REGION_ALIAS("default_rodata_seg", drom_seg);
REGION_ALIAS("default_code_seg", irom_seg);
#endif /* CONFIG_ESPRESSIF_RUN_IRAM */

280
boards/risc-v/espressif/common/scripts/esp32c6_legacy_sections.ld Normal file
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@ -0,0 +1,280 @@
/****************************************************************************
* boards/risc-v/espressif/common/scripts/esp32c6_legacy_sections.ld
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/* Default entry point: */
ENTRY(__start);
SECTIONS
{
.iram0.text :
{
_iram_start = ABSOLUTE(.);
/* Vectors go to start of IRAM */
KEEP(*(.exception_vectors.text));
. = ALIGN(4);
*(.iram1)
*(.iram1.*)
*libarch.a:brownout.*(.text .text.* .literal .literal.*)
*libarch.a:cpu.*(.text .text.* .literal .literal.*)
*libarch.a:gpio_hal.*(.text .text.* .literal .literal.*)
*libarch.a:periph_ctrl.*(.text .text.* .literal .literal.*)
*libarch.a:rtc_clk.*(.text .text.* .literal .literal.*)
*libarch.a:rtc_sleep.*(.text .text.* .literal .literal.*)
*libarch.a:rtc_time.*(.text .text.* .literal .literal.*)
*libarch.a:systimer.*(.text .text.* .literal .literal.*)
*libarch.a:systimer_hal.*(.text .text.* .literal .literal.*)
*libarch.a:uart_hal_iram.*(.text .text.* .literal .literal.*)
*libarch.a:wdt_hal_iram.*(.text .text.* .literal .literal.*)
*libsched.a:irq_dispatch.*(.text .text.* .literal .literal.*)
} >iram0_0_seg
/* Marks the end of IRAM code segment */
.iram0.text_end (NOLOAD) :
{
. = ALIGN(16);
} >iram0_0_seg
.iram0.data :
{
. = ALIGN(16);
*(.iram.data)
*(.iram.data*)
} >iram0_0_seg
.iram0.bss (NOLOAD) :
{
. = ALIGN(16);
*(.iram.bss)
*(.iram.bss*)
. = ALIGN(16);
_iram_end = ABSOLUTE(.);
} >iram0_0_seg
/* This section is required to skip .iram0.text area because iram0_0_seg
* and dram0_0_seg reflect the same address space on different buses.
*/
.dram0.dummy (NOLOAD):
{
. = ORIGIN(dram0_0_seg) + _iram_end - _iram_start;
} >dram0_0_seg
/* Shared RAM */
.dram0.bss (NOLOAD) :
{
. = ALIGN(8);
_sbss = ABSOLUTE(.);
*(.dynsbss)
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.sb.*)
*(.scommon)
*(.sbss2)
*(.sbss2.*)
*(.gnu.linkonce.sb2.*)
*(.dynbss)
*(.bss)
*(.bss.*)
*(.share.mem)
*(.gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(8);
_ebss = ABSOLUTE(.);
} >dram0_0_seg
.noinit (NOLOAD):
{
/* This section contains data that is not initialized during load,
* or during the application's initialization sequence.
*/
. = ALIGN(4);
*(.noinit)
*(.noinit.*)
. = ALIGN(4);
} >dram0_0_seg
.dram0.data :
{
_sdata = ABSOLUTE(.);
*(.data)
*(.data.*)
*(.gnu.linkonce.d.*)
*(.data1)
__global_pointer$ = . + 0x800;
*(.sdata)
*(.sdata.*)
*(.gnu.linkonce.s.*)
*(.sdata2)
*(.sdata2.*)
*(.gnu.linkonce.s2.*)
*(.jcr)
*(.dram1)
*(.dram1.*)
*libarch.a:brownout.*(.rodata .rodata.*)
*libarch.a:cpu.*(.rodata .rodata.*)
*libarch.a:gpio_hal.*(.rodata .rodata.*)
*libarch.a:interrupt.*(.rodata .rodata.*)
*libarch.a:periph_ctrl.*(.rodata .rodata.*)
*libarch.a:rtc_clk.*(.rodata .rodata.*)
*libarch.a:rtc_sleep.*(.rodata .rodata.*)
*libarch.a:rtc_time.*(.rodata .rodata.*)
*libarch.a:systimer.*(.rodata .rodata.*)
*libarch.a:systimer_hal.*(.rodata .rodata.*)
*libarch.a:uart_hal_iram.*(.rodata .rodata.*)
*libarch.a:wdt_hal_iram.*(.rodata .rodata.*)
*libsched.a:irq_dispatch.*(.rodata .rodata.*)
. = ALIGN(4);
_edata = ABSOLUTE(.);
/* Heap starts at the end of .data */
_sheap = ABSOLUTE(.);
} >dram0_0_seg
.flash.text :
{
_stext = .;
*(.literal .text .literal.* .text.* .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
*(.irom0.text) /* catch stray ICACHE_RODATA_ATTR */
*(.fini.literal)
*(.fini)
*(.gnu.version)
_etext = .;
/* Similar to _iram_start, this symbol goes here so it is
* resolved by addr2line in preference to the first symbol in
* the flash.text segment.
*/
_flash_cache_start = ABSOLUTE(0);
} >default_code_seg
.flash_rodata_dummy (NOLOAD):
{
/* Start at the same alignment constraint than .flash.text */
. = ALIGN(ALIGNOF(.flash.text));
/* Create an empty gap as big as .flash.text section */
. = . + SIZEOF(.flash.text);
/* Prepare the alignment of the section above. Few bytes (0x20) must be
* added for the mapping header.
*/
. = ALIGN(0x10000) + 0x20;
} >default_rodata_seg
.flash.rodata : ALIGN(0x10)
{
_srodata = ABSOLUTE(.);
*(.rodata)
*(.rodata.*)
*(.srodata.*)
*(.irom1.text) /* catch stray ICACHE_RODATA_ATTR */
*(.gnu.linkonce.r.*)
*(.rodata1)
__XT_EXCEPTION_TABLE_ = ABSOLUTE(.);
*(.xt_except_table)
*(.gcc_except_table .gcc_except_table.*)
*(.gnu.linkonce.e.*)
*(.gnu.version_r)
. = (. + 3) & ~ 3;
__eh_frame = ABSOLUTE(.);
KEEP(*(.eh_frame))
. = (. + 7) & ~ 3;
/* C++ constructor and destructor tables:
* RISC-V GCC is configured with --enable-initfini-array so it emits an
* .init_array section instead.
*/
_sinit = ABSOLUTE(.);
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array.*))
KEEP (*(EXCLUDE_FILE (*crtend.* *crtbegin.*) .init_array))
_einit = ABSOLUTE(.);
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
/* C++ exception handlers table: */
__XT_EXCEPTION_DESCS_ = ABSOLUTE(.);
*(.xt_except_desc)
*(.gnu.linkonce.h.*)
__XT_EXCEPTION_DESCS_END__ = ABSOLUTE(.);
*(.xt_except_desc_end)
*(.dynamic)
*(.gnu.version_d)
_erodata = ABSOLUTE(.);
/* Literals are also RO data. */
_lit4_start = ABSOLUTE(.);
*(*.lit4)
*(.lit4.*)
*(.gnu.linkonce.lit4.*)
_lit4_end = ABSOLUTE(.);
. = ALIGN(4);
} >default_rodata_seg
/* RTC fast memory holds RTC wake stub code !*/
.rtc.text :
{
. = ALIGN(4);
*(.rtc.literal .rtc.text)
} >lp_ram_seg
/* This section is required to skip rtc.text area because the text and
* data segements reflect the same address space on different buses.
*/
.rtc.dummy :
{
. = SIZEOF(.rtc.text);
} >lp_ram_seg
/* RTC data section holds RTC wake stub data/rodata. */
.rtc.data :
{
*(.rtc.data)
*(.rtc.rodata)
} >lp_ram_seg
}

8
boards/risc-v/espressif/esp32c6-generic/Kconfig Normal file
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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
if ARCH_BOARD_ESP32C6_GENERIC
endif # ARCH_BOARD_ESP32C6_GENERIC

46
boards/risc-v/espressif/esp32c6-generic/configs/nsh/defconfig Normal file
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#
# This file is autogenerated: PLEASE DO NOT EDIT IT.
#
# You can use "make menuconfig" to make any modifications to the installed .config file.
# You can then do "make savedefconfig" to generate a new defconfig file that includes your
# modifications.
#
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
CONFIG_ARCH="risc-v"
CONFIG_ARCH_BOARD="esp32c6-generic"
CONFIG_ARCH_BOARD_COMMON=y
CONFIG_ARCH_BOARD_ESP32C6_GENERIC=y
CONFIG_ARCH_CHIP="espressif"
CONFIG_ARCH_CHIP_ESPRESSIF=y
CONFIG_ARCH_INTERRUPTSTACK=2048
CONFIG_ARCH_RISCV=y
CONFIG_ARCH_STACKDUMP=y
CONFIG_BOARD_LOOPSPERMSEC=15000
CONFIG_BUILTIN=y
CONFIG_DEV_ZERO=y
CONFIG_ESPRESSIF_ESP32C6=y
CONFIG_FS_PROCFS=y
CONFIG_IDLETHREAD_STACKSIZE=2048
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INTELHEX_BINARY=y
CONFIG_LIBC_PERROR_STDOUT=y
CONFIG_LIBC_STRERROR=y
CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_NSH_STRERROR=y
CONFIG_PREALLOC_TIMERS=0
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_BACKTRACE=y
CONFIG_SCHED_WAITPID=y
CONFIG_START_DAY=29
CONFIG_START_MONTH=11
CONFIG_START_YEAR=2019
CONFIG_SYSTEM_DUMPSTACK=y
CONFIG_SYSTEM_NSH=y
CONFIG_TESTING_GETPRIME=y
CONFIG_TESTING_OSTEST=y
CONFIG_UART0_SERIAL_CONSOLE=y

25
boards/risc-v/espressif/esp32c6-generic/include/board.h Normal file
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/****************************************************************************
* boards/risc-v/espressif/esp32c6-generic/include/board.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
#ifndef __BOARDS_RISCV_ESPRESSIF_ESP32C6_GENERIC_INCLUDE_BOARD_H
#define __BOARDS_RISCV_ESPRESSIF_ESP32C6_GENERIC_INCLUDE_BOARD_H
#endif /* __BOARDS_RISCV_ESPRESSIF_ESP32C6_GENERIC_INCLUDE_BOARD_H */

60
boards/risc-v/espressif/esp32c6-generic/scripts/Make.defs Normal file
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############################################################################
# boards/risc-v/espressif/esp32c6-generic/scripts/Make.defs
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you 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.
#
###########################################################################
include $(TOPDIR)/.config
include $(TOPDIR)/tools/Config.mk
include $(TOPDIR)/tools/espressif/Config.mk
include $(TOPDIR)/arch/risc-v/src/common/Toolchain.defs
# Remove quotes from CONFIG_ESPRESSIF_CHIP_SERIES configuration
CHIP_SERIES = $(patsubst "%",%,$(CONFIG_ESPRESSIF_CHIP_SERIES))
# Pick the linker scripts from the board level if they exist, if not
# pick the common linker scripts.
ARCHSCRIPT += $(BOARD_COMMON_DIR)/scripts/$(CHIP_SERIES)_aliases.ld
ARCHSCRIPT += $(call FINDSCRIPT,$(CHIP_SERIES)_flat_memory.ld)
ARCHSCRIPT += $(call FINDSCRIPT,$(CHIP_SERIES)_legacy_sections.ld)
ARCHPICFLAGS = -fpic
CFLAGS := $(ARCHCFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe -Werror=return-type -Werror
CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
CXXFLAGS := $(ARCHCXXFLAGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
AFLAGS := $(CFLAGS) -D__ASSEMBLY__
# Loadable module definitions
CMODULEFLAGS = $(CFLAGS)
LDMODULEFLAGS = -melf32lriscv -r -e module_initialize
LDMODULEFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)/libs/libc/modlib/gnu-elf.ld)
# ELF module definitions
CELFFLAGS = $(CFLAGS)
CXXELFFLAGS = $(CXXFLAGS)
LDELFFLAGS = -melf32lriscv -r -e main
LDELFFLAGS += -T $(call CONVERT_PATH,$(TOPDIR)/binfmt/libelf/gnu-elf.ld)

31
boards/risc-v/espressif/esp32c6-generic/src/Make.defs Normal file
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#############################################################################
# boards/risc-v/espressif/esp32c6-generic/src/Make.defs
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you 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.
#
#############################################################################
include $(TOPDIR)/Make.defs
CSRCS = esp32c6_boot.c esp32c6_bringup.c
ifeq ($(CONFIG_BOARDCTL),y)
CSRCS += esp32c6_appinit.c
endif
DEPPATH += --dep-path board
VPATH += :board
CFLAGS += $(shell $(INCDIR) "$(CC)" $(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)board)

72
boards/risc-v/espressif/esp32c6-generic/src/esp32c6-generic.h Normal file
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/****************************************************************************
* boards/risc-v/espressif/esp32c6-generic/src/esp32c6-generic.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
#ifndef __BOARDS_RISCV_ESPRESSIF_ESP32C6_GENERIC_SRC_ESP32C6_GENERIC_H
#define __BOARDS_RISCV_ESPRESSIF_ESP32C6_GENERIC_SRC_ESP32C6_GENERIC_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#ifndef __ASSEMBLY__
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: esp_bringup
*
* Description:
* Perform architecture-specific initialization.
*
* CONFIG_BOARD_LATE_INITIALIZE=y :
* Called from board_late_initialize().
*
* CONFIG_BOARD_LATE_INITIALIZE=y && CONFIG_BOARDCTL=y :
* Called from the NSH library via board_app_initialize().
*
* Input Parameters:
* None.
*
* Returned Value:
* Zero (OK) is returned on success; A negated errno value is returned on
* any failure.
*
****************************************************************************/
int esp_bringup(void);
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_RISCV_ESPRESSIF_ESP32C6_GENERIC_SRC_ESP32C6_GENERIC_H */

81
boards/risc-v/espressif/esp32c6-generic/src/esp32c6_appinit.c Normal file
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/****************************************************************************
* boards/risc-v/espressif/esp32c6-generic/src/esp32c6_appinit.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <nuttx/board.h>
#include "esp32c6-generic.h"
#ifdef CONFIG_BOARDCTL
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_app_initialize
*
* Description:
* Perform application specific initialization. This function is never
* called directly from application code, but only indirectly via the
* (non-standard) boardctl() interface using the command BOARDIOC_INIT.
*
* Input Parameters:
* arg - The boardctl() argument is passed to the board_app_initialize()
* implementation without modification. The argument has no
* meaning to NuttX; the meaning of the argument is a contract
* between the board-specific initialization logic and the
* matching application logic. The value could be such things as a
* mode enumeration value, a set of DIP switch settings, a
* pointer to configuration data read from a file or serial FLASH,
* or whatever you would like to do with it. Every implementation
* should accept zero/NULL as a default configuration.
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure to indicate the nature of the failure.
*
****************************************************************************/
int board_app_initialize(uintptr_t arg)
{
#ifdef CONFIG_BOARD_LATE_INITIALIZE
/* Board initialization already performed by board_late_initialize() */
return OK;
#else
/* Perform board-specific initialization */
return esp_bringup();
#endif
}
#endif /* CONFIG_BOARDCTL */

89
boards/risc-v/espressif/esp32c6-generic/src/esp32c6_boot.c Normal file
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/****************************************************************************
* boards/risc-v/espressif/esp32c6-generic/src/esp32c6_boot.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include "riscv_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: esp_board_initialize
*
* Description:
* All Espressif boards must provide the following entry point.
* This entry point is called early in the initialization -- after all
* memory has been configured and mapped but before any devices have been
* initialized.
*
* Input Parameters:
* None.
*
* Returned Value:
* None.
*
****************************************************************************/
void esp_board_initialize(void)
{
}
/****************************************************************************
* Name: board_late_initialize
*
* Description:
* If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
* initialization call will be performed in the boot-up sequence to a
* function called board_late_initialize(). board_late_initialize() will
* be called immediately after up_initialize() is called and just before
* the initial application is started. This additional initialization
* phase may be used, for example, to initialize board-specific device
* drivers.
*
* Input Parameters:
* None.
*
* Returned Value:
* None.
*
****************************************************************************/
#ifdef CONFIG_BOARD_LATE_INITIALIZE
void board_late_initialize(void)
{
/* Perform board-specific initialization */
esp_bringup();
}
#endif

98
boards/risc-v/espressif/esp32c6-generic/src/esp32c6_bringup.c Normal file
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/****************************************************************************
* boards/risc-v/espressif/esp32c6-generic/src/esp32c6_bringup.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <debug.h>
#include <fcntl.h>
#include <syslog.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <nuttx/fs/fs.h>
#include "esp32c6-generic.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: esp_bringup
*
* Description:
* Perform architecture-specific initialization.
*
* CONFIG_BOARD_LATE_INITIALIZE=y :
* Called from board_late_initialize().
*
* CONFIG_BOARD_LATE_INITIALIZE=y && CONFIG_BOARDCTL=y :
* Called from the NSH library via board_app_initialize().
*
* Input Parameters:
* None.
*
* Returned Value:
* Zero (OK) is returned on success; A negated errno value is returned on
* any failure.
*
****************************************************************************/
int esp_bringup(void)
{
int ret = OK;
#ifdef CONFIG_FS_PROCFS
/* Mount the procfs file system */
ret = nx_mount(NULL, "/proc", "procfs", 0, NULL);
if (ret < 0)
{
_err("Failed to mount procfs at /proc: %d\n", ret);
}
#endif
#ifdef CONFIG_FS_TMPFS
/* Mount the tmpfs file system */
ret = nx_mount(NULL, CONFIG_LIBC_TMPDIR, "tmpfs", 0, NULL);
if (ret < 0)
{
_err("Failed to mount tmpfs at %s: %d\n", CONFIG_LIBC_TMPDIR, ret);
}
#endif
/* If we got here then perhaps not all initialization was successful, but
* at least enough succeeded to bring-up NSH with perhaps reduced
* capabilities.
*/
return ret;
}