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boards: google: add google_icetower board
Introduce Google Icetower Development Board. Icetower is a board created by Google for fingerprint-related functionality development. Signed-off-by: Dawid Niedzwiecki <[email protected]>
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# Copyright (c) 2024 Google LLC | ||
# SPDX-License-Identifier: Apache-2.0 | ||
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config BOARD_GOOGLE_ICETOWER | ||
select SOC_STM32H743XX |
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# SPDX-License-Identifier: Apache-2.0 | ||
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# keep first | ||
board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw") | ||
board_runner_args(jlink "--device=STM32H743VI" "--speed=4000") | ||
board_runner_args(openocd --target-handle=_CHIPNAME.cpu0) | ||
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# keep first | ||
include(${ZEPHYR_BASE}/boards/common/stm32cubeprogrammer.board.cmake) | ||
include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake) | ||
include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake) |
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board: | ||
name: google_icetower | ||
vendor: google | ||
socs: | ||
- name: stm32h743xx |
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.. _google_icetower_board: | ||
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Google Icetower Development Board | ||
################################### | ||
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Overview | ||
******** | ||
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Icetower is a board created by Google for fingerprint-related functionality | ||
development. | ||
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Board has connectors for fingerprint sensors. Console is exposed over `μServo`_ | ||
connector. MCU can be flashed using μServo or SWD. | ||
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Hardware | ||
******** | ||
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- STM32H7A3VIT6 LQFP100 package | ||
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Peripheral Mapping | ||
=================== | ||
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- USART_1 TX/RX : PA9/PA10 | ||
- SPI_1 CS/CLK/MISO/MOSI : PA4/PA5/PA6/PA7 | ||
- SPI_4 CS/CLK/MISO/MOSI : PE11/PE12/PE13/PE14 | ||
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Programming and Debugging | ||
************************* | ||
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Build application as usual for the ``google_icetower`` board, and flash | ||
using μServo or an external J-Link connected to J4. If μServo is used, please | ||
follow the `Chromium EC Flashing Documentation`_. | ||
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Debugging | ||
========= | ||
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Use SWD with a J-Link or ST-Link. Remember that SW2 must be set to CORESIGHT. | ||
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References | ||
********** | ||
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.. target-notes:: | ||
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.. _Chromium EC Flashing Documentation: | ||
https://chromium.googlesource.com/chromiumos/platform/ec#Flashing-via-the-servo-debug-board | ||
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.. _μServo: | ||
https://chromium.googlesource.com/chromiumos/third_party/hdctools/+/master/docs/servo_micro.md |
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/* | ||
* Copyright (c) 2024 Google LLC | ||
* | ||
* SPDX-License-Identifier: Apache-2.0 | ||
*/ | ||
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/dts-v1/; | ||
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#include <st/h7/stm32h743Xi.dtsi> | ||
#include <st/h7/stm32h743vitx-pinctrl.dtsi> | ||
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/ { | ||
model = "Google Icetower development board"; | ||
compatible = "google,icetower-fpmcu"; | ||
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chosen { | ||
zephyr,console = &usart1; | ||
zephyr,shell-uart = &usart1; | ||
zephyr,sram = &sram0; | ||
zephyr,flash = &flash0; | ||
}; | ||
}; | ||
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&clk_lsi { | ||
/* LSI clock frequency is 32kHz */ | ||
status = "okay"; | ||
}; | ||
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&clk_hsi { | ||
status = "okay"; | ||
hsi-div = <1>; | ||
clock-frequency = <DT_FREQ_M(64)>; | ||
}; | ||
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&rcc { | ||
clocks = <&clk_hsi>; | ||
clock-frequency = <DT_FREQ_M(64)>; | ||
d1cpre = <1>; | ||
hpre = <1>; | ||
d1ppre = <1>; | ||
d2ppre1 = <1>; | ||
d2ppre2 = <1>; | ||
d3ppre = <1>; | ||
}; | ||
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/* USART1: Servo UART (console) */ | ||
&usart1 { | ||
pinctrl-0 = <&usart1_tx_pa9 &usart1_rx_pa10>; | ||
pinctrl-names = "default"; | ||
current-speed = <115200>; | ||
status = "okay"; | ||
}; | ||
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/* SPI1: communication with the AP */ | ||
&spi1 { | ||
pinctrl-0 = <&spi1_nss_pa4 &spi1_sck_pa5 | ||
&spi1_miso_pa6 &spi1_mosi_pa7>; | ||
pinctrl-names = "default"; | ||
status = "okay"; | ||
}; | ||
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/* SPI4: communication with the fingerprint sensor */ | ||
&spi4 { | ||
pinctrl-0 = <&spi4_nss_pe11 &spi4_sck_pe12 | ||
&spi4_miso_pe13 &spi4_mosi_pe14>; | ||
pinctrl-names = "default"; | ||
status = "okay"; | ||
}; | ||
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&rtc { | ||
clocks = <&rcc STM32_CLOCK_BUS_APB4 0x00010000>, | ||
<&rcc STM32_SRC_LSI RTC_SEL(2)>; | ||
status = "okay"; | ||
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backup_regs { | ||
status = "okay"; | ||
}; | ||
}; |
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identifier: google_icetower | ||
name: Google Icetower Development Board | ||
type: mcu | ||
arch: arm | ||
toolchain: | ||
- zephyr | ||
- gnuarmemb | ||
- xtools | ||
ram: 1024 | ||
flash: 2048 | ||
vendor: google | ||
supported: | ||
- counter | ||
- dma | ||
- gpio | ||
- i2c | ||
- spi | ||
- pwm | ||
- rtc |
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# Copyright (c) 2024 Google Inc | ||
# SPDX-License-Identifier: Apache-2.0 | ||
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# Serial Drivers | ||
CONFIG_SERIAL=y | ||
CONFIG_UART_INTERRUPT_DRIVEN=y | ||
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# Console | ||
CONFIG_CONSOLE=y | ||
CONFIG_UART_CONSOLE=y | ||
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# GPIO Controller | ||
CONFIG_GPIO=y | ||
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# Enable MPU and HW stack protection | ||
CONFIG_ARM_MPU=y | ||
CONFIG_HW_STACK_PROTECTION=y |