The LinkIt Smart 7688 modules have a MT7688 SoC with 128 MiB of RAM and 32 MiB of flash (SPI NOR).
This patch also includes 2 targets. One is the target that can be programmed into the SPI NOR flash and a 2nd target "xxx-ram" is added to support loading and booting via an already running U-Boot version. This allows easy development and testing without the need to flash the image each time.
Signed-off-by: Stefan Roese sr@denx.de Cc: Daniel Schwierzeck daniel.schwierzeck@gmail.com --- v3: - Removed dtsi file - its added with patch #1 - Improvements to board_debug_uart_init() as suggested by Daniel - Added comment to board_early_init() - Removed DEBUG_UART
v2: - Kconfig entries added with this patch now
arch/mips/dts/linkit-smart-7688.dts | 46 +++++++++++++++++++ arch/mips/mach-mt7620/Kconfig | 13 ++++++ board/seeed/linkit-smart-7688/Kconfig | 12 +++++ board/seeed/linkit-smart-7688/MAINTAINERS | 8 ++++ board/seeed/linkit-smart-7688/Makefile | 3 ++ board/seeed/linkit-smart-7688/board.c | 26 +++++++++++ configs/linkit-smart-7688-ram_defconfig | 52 +++++++++++++++++++++ configs/linkit-smart-7688_defconfig | 56 +++++++++++++++++++++++ include/configs/linkit-smart-7688.h | 52 +++++++++++++++++++++ 9 files changed, 268 insertions(+) create mode 100644 arch/mips/dts/linkit-smart-7688.dts create mode 100644 board/seeed/linkit-smart-7688/Kconfig create mode 100644 board/seeed/linkit-smart-7688/MAINTAINERS create mode 100644 board/seeed/linkit-smart-7688/Makefile create mode 100644 board/seeed/linkit-smart-7688/board.c create mode 100644 configs/linkit-smart-7688-ram_defconfig create mode 100644 configs/linkit-smart-7688_defconfig create mode 100644 include/configs/linkit-smart-7688.h
diff --git a/arch/mips/dts/linkit-smart-7688.dts b/arch/mips/dts/linkit-smart-7688.dts new file mode 100644 index 0000000000..df4bf907c6 --- /dev/null +++ b/arch/mips/dts/linkit-smart-7688.dts @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018 Stefan Roese sr@denx.de + */ + +/dts-v1/; + +#include "mt7628a.dtsi" + +/ { + compatible = "seeed,linkit-smart-7688", "ralink,mt7628a-soc"; + model = "LinkIt-Smart-7688"; + + aliases { + serial0 = &uart2; + spi0 = &spi0; + }; + + memory@0 { + device_type = "memory"; + reg = <0x0 0x08000000>; + }; + + chosen { + bootargs = "console=ttyS0,57600"; + stdout-path = &uart2; + }; +}; + +&uart2 { + status = "okay"; + clock-frequency = <40000000>; +}; + +&spi0 { + status = "okay"; + num-cs = <2>; + + spi-flash@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "spi-flash", "jedec,spi-nor"; + spi-max-frequency = <25000000>; + reg = <0>; + }; +}; diff --git a/arch/mips/mach-mt7620/Kconfig b/arch/mips/mach-mt7620/Kconfig index 396fbd0141..ef1211d172 100644 --- a/arch/mips/mach-mt7620/Kconfig +++ b/arch/mips/mach-mt7620/Kconfig @@ -21,6 +21,17 @@ endchoice choice prompt "Board select"
+config BOARD_LINKIT_SMART_7688 + bool "LinkIt Smart 7688" + depends on SOC_MT7620 + select SUPPORTS_BOOT_RAM + help + Seeed LinkIt Smart 7688 boards have a MT7688 SoC with 128 MiB of RAM + and 32 MiB of flash (SPI). + Between its different peripherals there's an integrated switch with 4 + ethernet ports, 1 USB port, 1 UART, GPIO buttons and LEDs, and + a MT7688 (PCIe). + endchoice
choice @@ -110,4 +121,6 @@ endchoice config SUPPORTS_BOOT_RAM bool
+source "board/seeed/linkit-smart-7688/Kconfig" + endmenu diff --git a/board/seeed/linkit-smart-7688/Kconfig b/board/seeed/linkit-smart-7688/Kconfig new file mode 100644 index 0000000000..a9d63285c3 --- /dev/null +++ b/board/seeed/linkit-smart-7688/Kconfig @@ -0,0 +1,12 @@ +if BOARD_LINKIT_SMART_7688 + +config SYS_BOARD + default "linkit-smart-7688" + +config SYS_VENDOR + default "seeed" + +config SYS_CONFIG_NAME + default "linkit-smart-7688" + +endif diff --git a/board/seeed/linkit-smart-7688/MAINTAINERS b/board/seeed/linkit-smart-7688/MAINTAINERS new file mode 100644 index 0000000000..c3bbad4231 --- /dev/null +++ b/board/seeed/linkit-smart-7688/MAINTAINERS @@ -0,0 +1,8 @@ +LINKIT_SMART_7688 BOARD +M: Stefan Roese sr@denx.de +S: Maintained +F: board/seeed/linkit-smart-7688 +F: include/configs/linkit-smart-7688.h +F: configs/linkit-smart-7688_defconfig +F: configs/linkit-smart-7688_ram_defconfig +F: arch/mips/dts/linkit-smart-7688.dts diff --git a/board/seeed/linkit-smart-7688/Makefile b/board/seeed/linkit-smart-7688/Makefile new file mode 100644 index 0000000000..70cd7a8e56 --- /dev/null +++ b/board/seeed/linkit-smart-7688/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0+ + +obj-y += board.o diff --git a/board/seeed/linkit-smart-7688/board.c b/board/seeed/linkit-smart-7688/board.c new file mode 100644 index 0000000000..a28abc00b8 --- /dev/null +++ b/board/seeed/linkit-smart-7688/board.c @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018 Stefan Roese sr@denx.de + */ + +#include <common.h> +#include <asm/io.h> + +#define MT76XX_GPIO1_MODE 0xb0000060 + +void board_debug_uart_init(void) +{ + /* Select UART2 mode instead of GPIO mode (default) */ + clrbits_le32((void __iomem *)MT76XX_GPIO1_MODE, GENMASK(27, 26)); +} + +int board_early_init_f(void) +{ + /* + * The pin muxing of UART2 also needs to be done, if debug uart + * is not enabled. So we need to call this function here as well. + */ + board_debug_uart_init(); + + return 0; +} diff --git a/configs/linkit-smart-7688-ram_defconfig b/configs/linkit-smart-7688-ram_defconfig new file mode 100644 index 0000000000..f7cc9452f1 --- /dev/null +++ b/configs/linkit-smart-7688-ram_defconfig @@ -0,0 +1,52 @@ +CONFIG_MIPS=y +CONFIG_SYS_TEXT_BASE=0x80010000 +CONFIG_ARCH_MT7620=y +# CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set +# CONFIG_MIPS_BOOT_ENV_LEGACY is not set +CONFIG_MIPS_BOOT_FDT=y +CONFIG_DEFAULT_DEVICE_TREE="linkit-smart-7688" +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set +CONFIG_OF_STDOUT_VIA_ALIAS=y +CONFIG_SYS_CONSOLE_INFO_QUIET=y +CONFIG_BOARD_EARLY_INIT_F=y +CONFIG_HUSH_PARSER=y +CONFIG_CMD_CPU=y +CONFIG_CMD_LICENSE=y +# CONFIG_CMD_BOOTD is not set +# CONFIG_CMD_ELF is not set +# CONFIG_CMD_XIMG is not set +CONFIG_CMD_MEMINFO=y +# CONFIG_CMD_FLASH is not set +# CONFIG_CMD_LOADS is not set +CONFIG_CMD_SF=y +CONFIG_CMD_SPI=y +# CONFIG_CMD_NET is not set +CONFIG_CMD_TIME=y +CONFIG_OF_EMBED=y +CONFIG_ENV_IS_IN_SPI_FLASH=y +# CONFIG_DM_DEVICE_REMOVE is not set +CONFIG_HAVE_BLOCK_DEVICE=y +CONFIG_CLK=y +CONFIG_CPU=y +CONFIG_DM_GPIO=y +CONFIG_LED=y +CONFIG_LED_BLINK=y +CONFIG_LED_GPIO=y +CONFIG_SPI_FLASH=y +CONFIG_SPI_FLASH_4BYTE_MODE_ONLY=y +CONFIG_SPI_FLASH_GIGADEVICE=y +CONFIG_SPI_FLASH_MACRONIX=y +CONFIG_SPI_FLASH_SPANSION=y +CONFIG_SPI_FLASH_STMICRO=y +CONFIG_SPI_FLASH_WINBOND=y +CONFIG_SPI_FLASH_MTD=y +CONFIG_PHY=y +CONFIG_POWER_DOMAIN=y +CONFIG_RAM=y +CONFIG_DM_RESET=y +CONFIG_BAUDRATE=57600 +# CONFIG_SPL_SERIAL_PRESENT is not set +CONFIG_SYS_NS16550=y +CONFIG_SPI=y +CONFIG_MT7621_SPI=y +CONFIG_SYSRESET_SYSCON=y diff --git a/configs/linkit-smart-7688_defconfig b/configs/linkit-smart-7688_defconfig new file mode 100644 index 0000000000..73d848da85 --- /dev/null +++ b/configs/linkit-smart-7688_defconfig @@ -0,0 +1,56 @@ +CONFIG_MIPS=y +CONFIG_SYS_TEXT_BASE=0x9c000000 +CONFIG_ARCH_MT7620=y +CONFIG_BOOT_ROM=y +CONFIG_ONBOARD_DDR2_SIZE_1024MBIT=y +CONFIG_ONBOARD_DDR2_CHIP_WIDTH_16BIT=y +# CONFIG_MIPS_BOOT_CMDLINE_LEGACY is not set +# CONFIG_MIPS_BOOT_ENV_LEGACY is not set +CONFIG_MIPS_BOOT_FDT=y +CONFIG_DEFAULT_DEVICE_TREE="linkit-smart-7688" +# CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set +CONFIG_OF_STDOUT_VIA_ALIAS=y +CONFIG_SYS_CONSOLE_INFO_QUIET=y +CONFIG_BOARD_EARLY_INIT_F=y +CONFIG_HUSH_PARSER=y +CONFIG_CMD_CPU=y +CONFIG_CMD_LICENSE=y +# CONFIG_CMD_BOOTD is not set +# CONFIG_CMD_ELF is not set +# CONFIG_CMD_XIMG is not set +# CONFIG_CMD_CRC32 is not set +CONFIG_CMD_MEMINFO=y +# CONFIG_CMD_FLASH is not set +# CONFIG_CMD_LOADS is not set +CONFIG_CMD_SF=y +CONFIG_CMD_SPI=y +# CONFIG_CMD_NET is not set +CONFIG_CMD_TIME=y +CONFIG_OF_EMBED=y +CONFIG_ENV_IS_IN_SPI_FLASH=y +# CONFIG_DM_DEVICE_REMOVE is not set +CONFIG_HAVE_BLOCK_DEVICE=y +CONFIG_CLK=y +CONFIG_CPU=y +CONFIG_DM_GPIO=y +CONFIG_LED=y +CONFIG_LED_BLINK=y +CONFIG_LED_GPIO=y +CONFIG_SPI_FLASH=y +CONFIG_SPI_FLASH_4BYTE_MODE_ONLY=y +CONFIG_SPI_FLASH_GIGADEVICE=y +CONFIG_SPI_FLASH_MACRONIX=y +CONFIG_SPI_FLASH_SPANSION=y +CONFIG_SPI_FLASH_STMICRO=y +CONFIG_SPI_FLASH_WINBOND=y +CONFIG_SPI_FLASH_MTD=y +CONFIG_PHY=y +CONFIG_POWER_DOMAIN=y +CONFIG_RAM=y +CONFIG_DM_RESET=y +CONFIG_BAUDRATE=57600 +# CONFIG_SPL_SERIAL_PRESENT is not set +CONFIG_SYS_NS16550=y +CONFIG_SPI=y +CONFIG_MT7621_SPI=y +CONFIG_SYSRESET_SYSCON=y diff --git a/include/configs/linkit-smart-7688.h b/include/configs/linkit-smart-7688.h new file mode 100644 index 0000000000..be6cffee35 --- /dev/null +++ b/include/configs/linkit-smart-7688.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018 Stefan Roese sr@denx.de + */ + +#ifndef __CONFIG_LINKIT_SMART_7688_H +#define __CONFIG_LINKIT_SMART_7688_H + +/* CPU */ +#define CONFIG_SYS_MIPS_TIMER_FREQ 200000000 + +/* RAM */ +#define CONFIG_NR_DRAM_BANKS 1 +#define CONFIG_SYS_SDRAM_BASE 0x80000000 + +#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE + 0x100000 + +#define CONFIG_SYS_INIT_SP_OFFSET 0x400000 + +#ifdef CONFIG_BOOT_RAM +#define CONFIG_SKIP_LOWLEVEL_INIT +#endif + +/* UART */ +#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200, \ + 230400, 500000, 1500000 } + +/* RAM */ +#define CONFIG_SYS_MEMTEST_START 0x80100000 +#define CONFIG_SYS_MEMTEST_END 0x80400000 + +/* Memory usage */ +#define CONFIG_SYS_MAXARGS 64 +#define CONFIG_SYS_MALLOC_LEN (1024 * 1024) +#define CONFIG_SYS_BOOTPARAMS_LEN (128 * 1024) +#define CONFIG_SYS_CBSIZE 512 + +/* U-Boot */ +#define CONFIG_SYS_MONITOR_BASE CONFIG_SYS_TEXT_BASE + +/* Environment settings */ +#define CONFIG_ENV_OFFSET 0x40000 +#define CONFIG_ENV_SIZE (16 << 10) +#define CONFIG_ENV_SECT_SIZE (64 << 10) + +/* + * Environment is right behind U-Boot in flash. Make sure U-Boot + * doesn't grow into the environment area. + */ +#define CONFIG_BOARD_SIZE_LIMIT CONFIG_ENV_OFFSET + +#endif /* __CONFIG_LINKIT_SMART_7688_H */