Add basic support for running U-Boot on the Embedded Artists LPC3250 Developer's Kit v2 board by launching U-Boot from the board's s1l loader (which comes pre-installed on the board).
Signed-off-by: Trevor Woerner twoerner@gmail.com ---
arch/arm/dts/Makefile | 2 + arch/arm/dts/lpc3250-ea3250-u-boot.dtsi | 15 ++ arch/arm/mach-lpc32xx/Kconfig | 4 + board/ea/ea-lpc3250devkitv2/Kconfig | 15 ++ board/ea/ea-lpc3250devkitv2/MAINTAINERS | 9 ++ board/ea/ea-lpc3250devkitv2/Makefile | 4 + board/ea/ea-lpc3250devkitv2/README.rst | 132 ++++++++++++++++++ .../ea-lpc3250devkitv2/ea-lpc3250devkitv2.c | 37 +++++ configs/ea-lpc3250devkitv2_defconfig | 23 +++ include/configs/ea-lpc3250devkitv2.h | 37 +++++ 10 files changed, 278 insertions(+) create mode 100644 arch/arm/dts/lpc3250-ea3250-u-boot.dtsi create mode 100644 board/ea/ea-lpc3250devkitv2/Kconfig create mode 100644 board/ea/ea-lpc3250devkitv2/MAINTAINERS create mode 100644 board/ea/ea-lpc3250devkitv2/Makefile create mode 100644 board/ea/ea-lpc3250devkitv2/README.rst create mode 100644 board/ea/ea-lpc3250devkitv2/ea-lpc3250devkitv2.c create mode 100644 configs/ea-lpc3250devkitv2_defconfig create mode 100644 include/configs/ea-lpc3250devkitv2.h
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index 096068261d..134108f14e 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -1103,6 +1103,8 @@ dtb-$(CONFIG_TARGET_PRESIDIO_ASIC) += ca-presidio-engboard.dtb
dtb-$(CONFIG_TARGET_IMX8MM_CL_IOT_GATE) += imx8mm-cl-iot-gate.dtb
+dtb-$(CONFIG_TARGET_EA_LPC3250DEVKITV2) += lpc3250-ea3250.dtb + targets += $(dtb-y)
# Add any required device tree compiler flags here diff --git a/arch/arm/dts/lpc3250-ea3250-u-boot.dtsi b/arch/arm/dts/lpc3250-ea3250-u-boot.dtsi new file mode 100644 index 0000000000..0c82e512c6 --- /dev/null +++ b/arch/arm/dts/lpc3250-ea3250-u-boot.dtsi @@ -0,0 +1,15 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2021 Trevor Woerner twoerner@gmail.com + */ + +/{ + model = "Embedded Artists LPC3250 DevKit v2 board based on the NXP LPC3250 SoC"; + chosen { + stdout-path = &uart5; + }; +}; + +&uart5 { + compatible = "nxp,lpc3220-uart", "ns16550a"; +}; diff --git a/arch/arm/mach-lpc32xx/Kconfig b/arch/arm/mach-lpc32xx/Kconfig index 986ad738ac..185bda41c2 100644 --- a/arch/arm/mach-lpc32xx/Kconfig +++ b/arch/arm/mach-lpc32xx/Kconfig @@ -12,9 +12,13 @@ config TARGET_DEVKIT3250 config TARGET_WORK_92105 bool "Work Microwave Work_92105"
+config TARGET_EA_LPC3250DEVKITV2 + bool "Embedded Artists LPC3250 Developer's Kit v2" + endchoice
source "board/timll/devkit3250/Kconfig" source "board/work-microwave/work_92105/Kconfig" +source "board/ea/ea-lpc3250devkitv2/Kconfig"
endif diff --git a/board/ea/ea-lpc3250devkitv2/Kconfig b/board/ea/ea-lpc3250devkitv2/Kconfig new file mode 100644 index 0000000000..368ce027e6 --- /dev/null +++ b/board/ea/ea-lpc3250devkitv2/Kconfig @@ -0,0 +1,15 @@ +if TARGET_EA_LPC3250DEVKITV2 + +config SYS_BOARD + default "ea-lpc3250devkitv2" + +config SYS_VENDOR + default "ea" + +config SYS_SOC + default "lpc32xx" + +config SYS_CONFIG_NAME + default "ea-lpc3250devkitv2" + +endif diff --git a/board/ea/ea-lpc3250devkitv2/MAINTAINERS b/board/ea/ea-lpc3250devkitv2/MAINTAINERS new file mode 100644 index 0000000000..b4b9362f5b --- /dev/null +++ b/board/ea/ea-lpc3250devkitv2/MAINTAINERS @@ -0,0 +1,9 @@ +EMBEDDED ARTISTS LPC3250 DEVKIT v2 +M: Trevor Woerner twoerner@gmail.com +S: Maintained +F: board/ea/ea-lpc3250devkitv2 +F: include/configs/ea-lpc3250devkitv2.h +F: configs/ea-lpc3250devkitv2_defconfig +F: arch/arm/dts/lpc32xx.dtsi +F: arch/arm/dts/lpc3250-ea3250.dts +F: arch/arm/dts/lpc3250-ea3250-u-boot.dtsi diff --git a/board/ea/ea-lpc3250devkitv2/Makefile b/board/ea/ea-lpc3250devkitv2/Makefile new file mode 100644 index 0000000000..a4a40b6d4f --- /dev/null +++ b/board/ea/ea-lpc3250devkitv2/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0+ +# Copyright (C) 2021 Trevor Woerner twoerner@gmail.com + +obj-y += ea-lpc3250devkitv2.o diff --git a/board/ea/ea-lpc3250devkitv2/README.rst b/board/ea/ea-lpc3250devkitv2/README.rst new file mode 100644 index 0000000000..56b5d0dbb1 --- /dev/null +++ b/board/ea/ea-lpc3250devkitv2/README.rst @@ -0,0 +1,132 @@ +.. SPDX-License-Identifier: GPL-2.0+ + +ToC: +- Introduction +- Booting +- Debugging + + +Introduction +============ +The Embedded Artists LPC3250 Developer's Kit v2 features the LPC3250 SoC +which is based on the ARM926EJ-S CPU. The kit features a base board and +a removable OEM board which features the SoC. Details, schematics, and +documentation are available from the Embedded Artists product website: + + https://www.embeddedartists.com/products/lpc3250-developers-kit-v2/ + +The base board includes:: +- 200 pos, 0.6mm pitch SODIMM connector for OEM Board +- LCD expansion connector with control signals for touch screen interface +- Expansion connector with all OEM Board signals +- Ethernet connector (RJ45) +- CAN interface & connector (provision for second CAN interface, but not mounted) +- MMC/SD interface & connector +- USB1: OTG or Host interface & connector +- USB2: Device or Host interface & connector +- Provision for NXP JN5148 RF module (former Jennic) interface (RF module not included) +- Full modem RS232 (cannot be fully used on 32-bit databus OEM boards) +- RS422/485 interface & connector +- Provision for IrDA transceiver interface (transceiver not mounted) +- I2S audio codec (mic in, line in, line out, headphone out) +- SWD/JTAG connector +- Trace connector and pads for ETM connector +- Serial Expansion Connector, 14-pos connector with UART/I2C/SPI/GPIO pins +- Power supply, either via USB or external 5V DC +- Optional coin cell battery for RTC and LED on ALARM output (coin cell not included) +- OEM Board current measuring +- Parallel NOR flash on external memory bus +- 16-bit register and LEDs on external memory bus +- 5-key joystick +- LM75 temperature sensor (I2C connected) +- 5 push-button keys (four via I2C and one on ISP-ENABLE) +- 9 LEDs (8 via I2C and one on ISP-ENABLE) +- Trimming potentiometer to analog input +- USB-to-serial bridge on UART #0 (FT232R) and ISP functionality +- Reset push-button and LED +- Speaker output on analog output from OEM Board, or from I2S audio codec +- 160x150 mm in size + +The OEM board:: +- ARMv5 ARM926EJ-S @ 266 MHz with hard-float VFPv2 +- 256 KByte IRAM, 64 MByte SDRAM +- 128 MByte NAND flash +- 4 MByte NOR Flash +- Graphics Output: Parallel RGB +- Hardware 2D/3D Graphic: No +- Hardware Video: SW only +- Graphics input: No +- Audio: I2S +- Ethernet: 10/100 Mbps +- USB: 1x FS USB 2.0 OTG +- Wi-Fi: No +- FlexIO: No +- Serial: 2x I2C, 2x SPI, 7x UART +- ADC/PWM: 3 ch (10-bit) / 2 ch +- SD: MCI +- PCIe: No +- Serial ATA: No +- Size: 68 x 48 mm +- Connector: 200 pos SODIMM + + +Booting +======= +The processor will start its code execution from an internal ROM, +containing the boot code. This boot loader can load code from one of four +external sources to internal RAM (IRAM) at address 0x0:: +- UART5 +- SSP0 (in SPI mode) +- EMC Static CS0 memory +- NAND FLASH + +The ROM boot loader loads code as a single contiguous block at a maximum +size of 56 kByte. Programs larger than this size must be loaded in more +steps, for example, by a secondary boot loader. + +Kickstart Loader +---------------- +By default the Embedded Artists LPC3250 OEM Board is programmed with the +kickstart loader in block 0 of the NAND flash. The responsibility of this +loader is to load an application stored in block 1 and onwards of the NAND +flash. The kickstart loader will load the application into internal RAM +(IRAM) at address 0x0. + +Stage 1 Loader (s1l) +-------------------- +By default the Embedded Artists LPC3250 OEM Board is programmed with the +stage 1 loader (s1l) in block 1 of the NAND flash. This application will be +loaded by the kickstart loader when the LPC3250 OEM Board powers up. The +S1L loader will initialize the board, such as clocks and external memory +and then start a console where you can give input commands to the loader. +S1L offers the following booting options:: +- MMC/SD card +- UART5 +- NAND Flash + +U-Boot with kickstart+s1l +------------------------- +Out of the box, the easiest way to get U-Boot running on the EA LPC3250 +DevKit v2 board is to build the ea-lpc3250devkitv2_defconfig, copy the +resulting u-boot.bin to a vfat-formatted MMC/SD card, insert the MMC/SD card +into the MMC/SD card slot on the board, reset the board (SW1), and:: + + Embedded Artist 3250 Board (S1L 2.0) + Build date: Oct 31 2016 13:00:37 + + EA3250>load blk u-boot.bin raw 0x83000000 + File loaded successfully + + EA3250>exec 0x83000000 + + +Debugging +========= +JTAG debugging of the Embedded Artists LPC3250 Developer's Kit v2 board is +easy thanks to the included/populated 20-pin JTAG port on the main board (J8). +openocd 0.11 has been used with this board along with the ARM-USB-OCD-H JTAG +dongle from Olimex successfully as follows: + + # openocd \ + -f interface/ftdi/olimex-arm-usb-ocd-h.cfg \ + -f board/phytec_lpc3250.cfg diff --git a/board/ea/ea-lpc3250devkitv2/ea-lpc3250devkitv2.c b/board/ea/ea-lpc3250devkitv2/ea-lpc3250devkitv2.c new file mode 100644 index 0000000000..7a19400041 --- /dev/null +++ b/board/ea/ea-lpc3250devkitv2/ea-lpc3250devkitv2.c @@ -0,0 +1,37 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Board init file for Embedded Artists LPC3250 DevKit v2 + * Copyright (C) 2021 Trevor Woerner twoerner@gmail.com + */ + +#include <init.h> +#include <common.h> +#include <asm/io.h> +#include <asm/global_data.h> + +#include <asm/arch/clk.h> +#include <asm/arch/wdt.h> +#include <asm/arch/sys_proto.h> + +DECLARE_GLOBAL_DATA_PTR; + +int +board_early_init_f(void) +{ + lpc32xx_uart_init(CONFIG_CONS_INDEX); + return 0; +} + +int +board_init(void) +{ + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x2000; + return 0; +} + +int +dram_init(void) +{ + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE, SZ_64M); + return 0; +} diff --git a/configs/ea-lpc3250devkitv2_defconfig b/configs/ea-lpc3250devkitv2_defconfig new file mode 100644 index 0000000000..dc90e16475 --- /dev/null +++ b/configs/ea-lpc3250devkitv2_defconfig @@ -0,0 +1,23 @@ +CONFIG_ARM=y +CONFIG_SYS_ICACHE_OFF=y +CONFIG_SYS_DCACHE_OFF=y +CONFIG_ARCH_CPU_INIT=y +CONFIG_ARCH_LPC32XX=y +CONFIG_SYS_TEXT_BASE=0x83000000 +CONFIG_NR_DRAM_BANKS=1 +CONFIG_TARGET_EA_LPC3250DEVKITV2=y +CONFIG_DEFAULT_DEVICE_TREE="lpc3250-ea3250" +CONFIG_DISTRO_DEFAULTS=y +# CONFIG_ARCH_FIXUP_FDT_MEMORY is not set +# CONFIG_AUTOBOOT is not set +# CONFIG_USE_BOOTCOMMAND is not set +CONFIG_BOARD_EARLY_INIT_F=y +CONFIG_SYS_PROMPT="EA-LPC3250v2=> " +CONFIG_CMD_GPIO=y +CONFIG_OF_CONTROL=y +# CONFIG_NET is not set +CONFIG_LPC32XX_GPIO=y +CONFIG_SPECIFY_CONSOLE_INDEX=y +CONFIG_CONS_INDEX=5 +CONFIG_SYS_NS16550=y +CONFIG_PANIC_HANG=y diff --git a/include/configs/ea-lpc3250devkitv2.h b/include/configs/ea-lpc3250devkitv2.h new file mode 100644 index 0000000000..c1a37c8a79 --- /dev/null +++ b/include/configs/ea-lpc3250devkitv2.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Embedded Artists LPC3250 DevKit v2 + * Copyright (C) 2021 Trevor Woerner twoerner@gmail.com + */ + +#ifndef __CONFIG_EA_LPC3250DEVKITV2_H__ +#define __CONFIG_EA_LPC3250DEVKITV2_H__ + +#include <linux/sizes.h> +#include <asm/arch/cpu.h> + +/* + * SoC and board defines + */ +#define CONFIG_MACH_TYPE MACH_TYPE_LPC3XXX +#define CONFIG_SKIP_LOWLEVEL_INIT +#define CONFIG_BOARD_SIZE_LIMIT 0x000fffff /* maximum allowable size for full U-Boot binary */ + +/* + * RAM + */ +#define CONFIG_SYS_MALLOC_LEN SZ_4M +#define CONFIG_SYS_SDRAM_BASE EMC_DYCS0_BASE + +/* + * cmd + */ +#define CONFIG_SYS_LOAD_ADDR 0x80100000 +#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + SZ_4K - GENERATED_GBL_DATA_SIZE) + +/* + * SoC-specific config + */ +#include <asm/arch/config.h> + +#endif