[PATCH v5] Add support for SoM "VoCore2".

[PATCH v5] Add support for SoM "VoCore2".

[Mauro Condarelli]

Small patch series to add support for VoCore/VoCore2 board.

VoCore is open hardware and runs OpenWrt/LEDE.
It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
It will help you to make a smart house, study embedded system
or even make the tiniest router in the world.

Details about this SoM can be found at "https://vocore.io/v2.html".

Signed-off-by: Mauro Condarelli <mc5686@mclink.it>
---

Changes in v5:
- Removed unneeded (and wrong) UART2 initialization in board.c
- Added network setup.
- Removed project-specific code.
- Move back environment to SPI NOR.
- Changes to environment default settings.
- Rebase on current u-boot-mips/testing

Changes in v4:
- Reverted some overzealous DTS cleaning.
- Added support for bootcount

Changes in v3:
- based on top of Weijie Gao patchset:
    "[v3,xx/20]Refactor the architecture parts of mt7628"

Changes in v2:
- Removed some dead code
- Changed Author to my full name (no nick)
- Removed unwanted fixup to .dts generation (not my call).
- Fixed commit message
- Fixed various variables/filenames to include Vendor name
- Changed Vendor name (Vonger -> Vocore)

 arch/mips/dts/Makefile               |   1 +
 arch/mips/dts/mt7628a.dtsi           |   5 ++
 arch/mips/dts/vocore_vocore2.dts     |  78 ++++++++++++++++++++
 arch/mips/mach-mtmips/Kconfig        |   8 +++
 board/vocore/vocore2/Kconfig         |  12 ++++
 board/vocore/vocore2/Makefile        |   3 +
 board/vocore/vocore2/board.c         |   6 ++
 configs/vocore2_defconfig            | 103 ++++++++++++++++++++++++++
 configs/vocore2_defconfig_ENV_IN_FAT | 104 +++++++++++++++++++++++++++
 include/configs/vocore2.h            |  61 ++++++++++++++++
 10 files changed, 381 insertions(+)
 create mode 100644 arch/mips/dts/vocore_vocore2.dts
 create mode 100644 board/vocore/vocore2/Kconfig
 create mode 100644 board/vocore/vocore2/Makefile
 create mode 100644 board/vocore/vocore2/board.c
 create mode 100644 configs/vocore2_defconfig
 create mode 100644 configs/vocore2_defconfig_ENV_IN_FAT
 create mode 100644 include/configs/vocore2.h

diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
index cbd0c8bc8b..f711e9fb59 100644
--- a/arch/mips/dts/Makefile
+++ b/arch/mips/dts/Makefile
@@ -23,6 +23,7 @@ dtb-$(CONFIG_BOARD_NETGEAR_DGND3700V2) += netgear,dgnd3700v2.dtb
 dtb-$(CONFIG_BOARD_SAGEM_FAST1704) += sagem,f at st1704.dtb
 dtb-$(CONFIG_BOARD_SFR_NB4_SER) += sfr,nb4-ser.dtb
 dtb-$(CONFIG_BOARD_TPLINK_WDR4300) += tplink_wdr4300.dtb
+dtb-$(CONFIG_BOARD_VOCORE2) += vocore_vocore2.dtb
 dtb-$(CONFIG_TARGET_JZ4780_CI20) += ci20.dtb
 dtb-$(CONFIG_SOC_LUTON) += luton_pcb090.dtb luton_pcb091.dtb
 dtb-$(CONFIG_SOC_OCELOT) += ocelot_pcb120.dtb ocelot_pcb123.dtb
diff --git a/arch/mips/dts/mt7628a.dtsi b/arch/mips/dts/mt7628a.dtsi
index 6baa63add3..192599c37f 100644
--- a/arch/mips/dts/mt7628a.dtsi
+++ b/arch/mips/dts/mt7628a.dtsi
@@ -402,6 +402,11 @@
 		builtin-cd = <1>;
 		r_smpl = <1>;
 
+		bus-width = <4>;
+		max-frequency = <48000000>;
+		cap-sd-highspeed;
+		cap-mmc-highspeed;
+
 		clocks = <&clk48m>, <&clkctrl CLK_SDXC>;
 		clock-names = "source", "hclk";
 
diff --git a/arch/mips/dts/vocore_vocore2.dts b/arch/mips/dts/vocore_vocore2.dts
new file mode 100644
index 0000000000..1d611abb73
--- /dev/null
+++ b/arch/mips/dts/vocore_vocore2.dts
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
+ */
+
+/dts-v1/;
+
+#include "mt7628a.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	compatible = "vocore,vocore2", "ralink,mt7628a-soc";
+	model = "VoCore2";
+
+	aliases {
+		serial0 = &uart2;
+		spi0 = &spi0;
+	};
+
+	memory at 0 {
+		device_type = "memory";
+		reg = <0x0 0x08000000>;
+	};
+	leds {
+		compatible = "gpio-leds";
+
+		power {
+			label = "vocore:power";
+			gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+	};
+
+	chosen {
+		bootargs = "console=ttyS2,115200";
+		stdout-path = &uart2;
+	};
+};
+
+&pinctrl {
+	state_default: pin_state {
+		p0led {
+			groups = "p0led_a";
+			function = "led";
+		};
+	};
+};
+
+&uart2 {
+	status = "okay";
+};
+
+&spi0 {
+	status = "okay";
+	nor0: spi-flash at 0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <25000000>;
+		reg = <0>;
+	};
+};
+
+&eth {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&ephy_iot_mode>;
+	mediatek,poll-link-phy = <0>;
+};
+
+&mmc {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd_iot_mode>;
+	pinctrl-1 = <&sd_iot_mode>;
+};
diff --git a/arch/mips/mach-mtmips/Kconfig b/arch/mips/mach-mtmips/Kconfig
index bcd635f438..489e466daf 100644
--- a/arch/mips/mach-mtmips/Kconfig
+++ b/arch/mips/mach-mtmips/Kconfig
@@ -83,6 +83,13 @@ config BOARD_MT7628_RFB
 	  SPI-NOR flash, 1 built-in switch with 5 ports, 1 UART, 1 USB host,
 	  1 SDXC, 1 PCIe socket and JTAG pins.
 
+config BOARD_VOCORE2
+	bool "VoCore2"
+	depends on SOC_MT7628
+	help
+	  VoCore VoCore2 board has a MT7628 SoC with 128 MiB of RAM
+	  and 16 MiB of flash (SPI).
+
 endchoice
 
 config SPL_UART2_SPIS_PINMUX
@@ -96,5 +103,6 @@ config SPL_UART2_SPIS_PINMUX
 source "board/gardena/smart-gateway-mt7688/Kconfig"
 source "board/mediatek/mt7628/Kconfig"
 source "board/seeed/linkit-smart-7688/Kconfig"
+source "board/vocore/vocore2/Kconfig"
 
 endmenu
diff --git a/board/vocore/vocore2/Kconfig b/board/vocore/vocore2/Kconfig
new file mode 100644
index 0000000000..baeff31b69
--- /dev/null
+++ b/board/vocore/vocore2/Kconfig
@@ -0,0 +1,12 @@
+if BOARD_VOCORE2
+
+config SYS_BOARD
+	default "vocore2"
+
+config SYS_VENDOR
+	default "vocore"
+
+config SYS_CONFIG_NAME
+	default "vocore2"
+
+endif
diff --git a/board/vocore/vocore2/Makefile b/board/vocore/vocore2/Makefile
new file mode 100644
index 0000000000..70cd7a8e56
--- /dev/null
+++ b/board/vocore/vocore2/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y += board.o
diff --git a/board/vocore/vocore2/board.c b/board/vocore/vocore2/board.c
new file mode 100644
index 0000000000..27e42d1414
--- /dev/null
+++ b/board/vocore/vocore2/board.c
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
+ *
+ * Nothing actually needed here
+ */
diff --git a/configs/vocore2_defconfig b/configs/vocore2_defconfig
new file mode 100644
index 0000000000..3989aa72f0
--- /dev/null
+++ b/configs/vocore2_defconfig
@@ -0,0 +1,103 @@
+CONFIG_MIPS=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_ENV_SIZE=0x1000
+CONFIG_ENV_SECT_SIZE=0x1000
+CONFIG_ENV_OFFSET=0x04e000
+CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_SYS_BOOTCOUNT_ADDR=0xb000006c
+CONFIG_SPL_SYS_MALLOC_F_LEN=0x20000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_SPL=y
+CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y
+CONFIG_ARCH_MTMIPS=y
+CONFIG_BOARD_VOCORE2=y
+CONFIG_SPL_UART2_SPIS_PINMUX=y
+CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
+CONFIG_MIPS_BOOT_FDT=y
+CONFIG_ENV_VARS_UBOOT_CONFIG=y
+CONFIG_SYS_BOOT_GET_CMDLINE=y
+CONFIG_SYS_BOOT_GET_KBD=y
+CONFIG_FIT=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_LEGACY_IMAGE_FORMAT=y
+CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_LOGLEVEL=8
+CONFIG_VERSION_VARIABLE=y
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_SPL_SYS_MALLOC_SIMPLE=y
+CONFIG_SPL_NOR_SUPPORT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_LICENSE=y
+# CONFIG_BOOTM_NETBSD is not set
+# CONFIG_BOOTM_PLAN9 is not set
+# CONFIG_BOOTM_RTEMS is not set
+# CONFIG_BOOTM_VXWORKS 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_GPIO=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_GPT_RENAME=y
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_MTD=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_WDT=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_BOOTCOUNT=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
+CONFIG_MTDPARTS_DEFAULT="spi0.0:312k(u-boot),4k(env),4k(factory),2368k(kernel),-(filesystem)"
+CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_SPL_DM=y
+# CONFIG_DM_DEVICE_REMOVE is not set
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_LED=y
+CONFIG_LED_BLINK=y
+CONFIG_LED_GPIO=y
+CONFIG_MMC=y
+CONFIG_DM_MMC=y
+# CONFIG_MMC_HW_PARTITIONING is not set
+CONFIG_MMC_MTK=y
+CONFIG_MTD=y
+CONFIG_SPI_FLASH_SFDP_SUPPORT=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_MT7628_ETH=y
+CONFIG_PHY=y
+CONFIG_MT76X8_USB_PHY=y
+# CONFIG_RAM_ROCKCHIP_DEBUG is not set
+CONFIG_SPECIFY_CONSOLE_INDEX=y
+CONFIG_CONS_INDEX=3
+CONFIG_SPI=y
+CONFIG_MT7621_SPI=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_STORAGE=y
+CONFIG_WDT=y
+CONFIG_WDT_MT7621=y
+CONFIG_FS_EXT4=y
+CONFIG_FAT_WRITE=y
+CONFIG_LZMA=y
+CONFIG_LZO=y
diff --git a/configs/vocore2_defconfig_ENV_IN_FAT b/configs/vocore2_defconfig_ENV_IN_FAT
new file mode 100644
index 0000000000..02727859e4
--- /dev/null
+++ b/configs/vocore2_defconfig_ENV_IN_FAT
@@ -0,0 +1,104 @@
+CONFIG_MIPS=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_ENV_SIZE=0x1000
+CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_SPL_SYS_MALLOC_F_LEN=0x20000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_SPL=y
+CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y
+CONFIG_SYS_BOOTCOUNT_ADDR=0xb000006c
+CONFIG_ARCH_MTMIPS=y
+CONFIG_BOARD_VOCORE2=y
+CONFIG_SPL_UART2_SPIS_PINMUX=y
+CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
+CONFIG_MIPS_BOOT_FDT=y
+CONFIG_ENV_VARS_UBOOT_CONFIG=y
+CONFIG_SYS_BOOT_GET_CMDLINE=y
+CONFIG_SYS_BOOT_GET_KBD=y
+CONFIG_FIT=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_LEGACY_IMAGE_FORMAT=y
+CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_USE_BOOTARGS=y
+CONFIG_LOGLEVEL=8
+CONFIG_SYS_CONSOLE_INFO_QUIET=y
+CONFIG_VERSION_VARIABLE=y
+CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_BOARD_EARLY_INIT_F=y
+CONFIG_SPL_SYS_MALLOC_SIMPLE=y
+CONFIG_SPL_NOR_SUPPORT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_LICENSE=y
+# CONFIG_BOOTM_NETBSD is not set
+# CONFIG_BOOTM_PLAN9 is not set
+# CONFIG_BOOTM_RTEMS is not set
+# CONFIG_BOOTM_VXWORKS 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_GPIO=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_GPT_RENAME=y
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_MTD=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_WDT=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_BOOTCOUNT=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
+CONFIG_MTDPARTS_DEFAULT="spi0.0:312k(u-boot),4k(env),4k(factory),2368k(kernel),-(filesystem)"
+CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
+CONFIG_ENV_IS_IN_FAT=y
+CONFIG_ENV_FAT_INTERFACE="mmc"
+CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
+CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_SPL_DM=y
+# CONFIG_DM_DEVICE_REMOVE is not set
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_LED=y
+CONFIG_LED_BLINK=y
+CONFIG_LED_GPIO=y
+CONFIG_MMC=y
+CONFIG_DM_MMC=y
+# CONFIG_MMC_HW_PARTITIONING is not set
+CONFIG_MMC_MTK=y
+CONFIG_MTD=y
+CONFIG_SPI_FLASH_SFDP_SUPPORT=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_MT7628_ETH=y
+CONFIG_PHY=y
+CONFIG_MT76X8_USB_PHY=y
+# CONFIG_RAM_ROCKCHIP_DEBUG is not set
+CONFIG_SPECIFY_CONSOLE_INDEX=y
+CONFIG_CONS_INDEX=3
+CONFIG_SPI=y
+CONFIG_MT7621_SPI=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_STORAGE=y
+CONFIG_WDT=y
+CONFIG_WDT_MT7621=y
+CONFIG_FS_EXT4=y
+CONFIG_LZMA=y
+CONFIG_LZO=y
diff --git a/include/configs/vocore2.h b/include/configs/vocore2.h
new file mode 100644
index 0000000000..6b43aa766e
--- /dev/null
+++ b/include/configs/vocore2.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
+ */
+
+#ifndef __VOCORE2_CONFIG_H__
+#define __VOCORE2_CONFIG_H__
+
+/* CPU */
+#define CONFIG_SYS_MIPS_TIMER_FREQ	290000000
+
+/* RAM */
+#define CONFIG_SYS_SDRAM_BASE		0x80000000
+
+#define CONFIG_SYS_LOAD_ADDR	CONFIG_SYS_SDRAM_BASE + 0x100000
+
+#define CONFIG_SYS_INIT_SP_OFFSET	0x400000
+
+/* SPL */
+#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#endif
+
+#define CONFIG_SYS_UBOOT_START		CONFIG_SYS_TEXT_BASE
+#define CONFIG_SPL_BSS_START_ADDR	0x80010000
+#define CONFIG_SPL_BSS_MAX_SIZE		0x10000
+#define CONFIG_SPL_MAX_SIZE		0x10000
+
+/* Dummy value */
+#define CONFIG_SYS_UBOOT_BASE		0
+
+/* Serial SPL */
+#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SERIAL_SUPPORT)
+#define CONFIG_SYS_NS16550_MEM32
+#define CONFIG_SYS_NS16550_CLK		40000000
+#define CONFIG_SYS_NS16550_REG_SIZE	-4
+#define CONFIG_SYS_NS16550_COM3		0xb0000e00
+#define CONFIG_CONS_INDEX		3
+
+#endif
+
+/* UART */
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200, \
+					230400, 460800, 921600 }
+
+/* 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 */
+
+#endif //__VOCORE2_CONFIG_H__
-- 
2.25.0

[PATCH v5] Add support for SoM "VoCore2".

[Daniel Schwierzeck]

On Wed, Feb 12, 2020 at 4:30 PM Mauro Condarelli <mc5686@mclink.it> wrote:
>
> Small patch series to add support for VoCore/VoCore2 board.
>
> VoCore is open hardware and runs OpenWrt/LEDE.
> It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
> It will help you to make a smart house, study embedded system
> or even make the tiniest router in the world.
>
> Details about this SoM can be found at "https://vocore.io/v2.html".
>
> Signed-off-by: Mauro Condarelli <mc5686@mclink.it>
> ---
>
> Changes in v5:
> - Removed unneeded (and wrong) UART2 initialization in board.c
> - Added network setup.
> - Removed project-specific code.
> - Move back environment to SPI NOR.
> - Changes to environment default settings.
> - Rebase on current u-boot-mips/testing
>
> Changes in v4:
> - Reverted some overzealous DTS cleaning.
> - Added support for bootcount
>
> Changes in v3:
> - based on top of Weijie Gao patchset:
>     "[v3,xx/20]Refactor the architecture parts of mt7628"
>
> Changes in v2:
> - Removed some dead code
> - Changed Author to my full name (no nick)
> - Removed unwanted fixup to .dts generation (not my call).
> - Fixed commit message
> - Fixed various variables/filenames to include Vendor name
> - Changed Vendor name (Vonger -> Vocore)
>
>  arch/mips/dts/Makefile               |   1 +
>  arch/mips/dts/mt7628a.dtsi           |   5 ++
>  arch/mips/dts/vocore_vocore2.dts     |  78 ++++++++++++++++++++
>  arch/mips/mach-mtmips/Kconfig        |   8 +++
>  board/vocore/vocore2/Kconfig         |  12 ++++
>  board/vocore/vocore2/Makefile        |   3 +
>  board/vocore/vocore2/board.c         |   6 ++
>  configs/vocore2_defconfig            | 103 ++++++++++++++++++++++++++
>  configs/vocore2_defconfig_ENV_IN_FAT | 104 +++++++++++++++++++++++++++
>  include/configs/vocore2.h            |  61 ++++++++++++++++
>  10 files changed, 381 insertions(+)
>  create mode 100644 arch/mips/dts/vocore_vocore2.dts
>  create mode 100644 board/vocore/vocore2/Kconfig
>  create mode 100644 board/vocore/vocore2/Makefile
>  create mode 100644 board/vocore/vocore2/board.c
>  create mode 100644 configs/vocore2_defconfig
>  create mode 100644 configs/vocore2_defconfig_ENV_IN_FAT
>  create mode 100644 include/configs/vocore2.h
>
> diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
> index cbd0c8bc8b..f711e9fb59 100644
> --- a/arch/mips/dts/Makefile
> +++ b/arch/mips/dts/Makefile
> @@ -23,6 +23,7 @@ dtb-$(CONFIG_BOARD_NETGEAR_DGND3700V2) += netgear,dgnd3700v2.dtb
>  dtb-$(CONFIG_BOARD_SAGEM_FAST1704) += sagem,f at st1704.dtb
>  dtb-$(CONFIG_BOARD_SFR_NB4_SER) += sfr,nb4-ser.dtb
>  dtb-$(CONFIG_BOARD_TPLINK_WDR4300) += tplink_wdr4300.dtb
> +dtb-$(CONFIG_BOARD_VOCORE2) += vocore_vocore2.dtb
>  dtb-$(CONFIG_TARGET_JZ4780_CI20) += ci20.dtb
>  dtb-$(CONFIG_SOC_LUTON) += luton_pcb090.dtb luton_pcb091.dtb
>  dtb-$(CONFIG_SOC_OCELOT) += ocelot_pcb120.dtb ocelot_pcb123.dtb
> diff --git a/arch/mips/dts/mt7628a.dtsi b/arch/mips/dts/mt7628a.dtsi
> index 6baa63add3..192599c37f 100644
> --- a/arch/mips/dts/mt7628a.dtsi
> +++ b/arch/mips/dts/mt7628a.dtsi
> @@ -402,6 +402,11 @@
>                 builtin-cd = <1>;
>                 r_smpl = <1>;
>
> +               bus-width = <4>;
> +               max-frequency = <48000000>;
> +               cap-sd-highspeed;
> +               cap-mmc-highspeed;
> +
>                 clocks = <&clk48m>, <&clkctrl CLK_SDXC>;
>                 clock-names = "source", "hclk";
>
> diff --git a/arch/mips/dts/vocore_vocore2.dts b/arch/mips/dts/vocore_vocore2.dts
> new file mode 100644
> index 0000000000..1d611abb73
> --- /dev/null
> +++ b/arch/mips/dts/vocore_vocore2.dts
> @@ -0,0 +1,78 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
> + */
> +
> +/dts-v1/;
> +
> +#include "mt7628a.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +
> +/ {
> +       compatible = "vocore,vocore2", "ralink,mt7628a-soc";
> +       model = "VoCore2";
> +
> +       aliases {
> +               serial0 = &uart2;
> +               spi0 = &spi0;
> +       };
> +
> +       memory at 0 {
> +               device_type = "memory";
> +               reg = <0x0 0x08000000>;
> +       };
> +       leds {
> +               compatible = "gpio-leds";
> +
> +               power {
> +                       label = "vocore:power";
> +                       gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
> +                       default-state = "off";
> +               };
> +       };
> +
> +       chosen {
> +               bootargs = "console=ttyS2,115200";
> +               stdout-path = &uart2;
> +       };
> +};
> +
> +&pinctrl {
> +       state_default: pin_state {
> +               p0led {
> +                       groups = "p0led_a";
> +                       function = "led";
> +               };
> +       };
> +};
> +
> +&uart2 {
> +       status = "okay";
> +};
> +
> +&spi0 {
> +       status = "okay";
> +       nor0: spi-flash at 0 {
> +               #address-cells = <1>;
> +               #size-cells = <1>;
> +               compatible = "jedec,spi-nor";
> +               spi-max-frequency = <25000000>;
> +               reg = <0>;
> +       };
> +};
> +
> +&eth {
> +       status = "okay";
> +
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&ephy_iot_mode>;
> +       mediatek,poll-link-phy = <0>;
> +};
> +
> +&mmc {
> +       status = "okay";
> +
> +       pinctrl-names = "default";
> +       pinctrl-0 = <&sd_iot_mode>;
> +       pinctrl-1 = <&sd_iot_mode>;
> +};
> diff --git a/arch/mips/mach-mtmips/Kconfig b/arch/mips/mach-mtmips/Kconfig
> index bcd635f438..489e466daf 100644
> --- a/arch/mips/mach-mtmips/Kconfig
> +++ b/arch/mips/mach-mtmips/Kconfig
> @@ -83,6 +83,13 @@ config BOARD_MT7628_RFB
>           SPI-NOR flash, 1 built-in switch with 5 ports, 1 UART, 1 USB host,
>           1 SDXC, 1 PCIe socket and JTAG pins.
>
> +config BOARD_VOCORE2
> +       bool "VoCore2"
> +       depends on SOC_MT7628
> +       help
> +         VoCore VoCore2 board has a MT7628 SoC with 128 MiB of RAM
> +         and 16 MiB of flash (SPI).
> +
>  endchoice
>
>  config SPL_UART2_SPIS_PINMUX
> @@ -96,5 +103,6 @@ config SPL_UART2_SPIS_PINMUX
>  source "board/gardena/smart-gateway-mt7688/Kconfig"
>  source "board/mediatek/mt7628/Kconfig"
>  source "board/seeed/linkit-smart-7688/Kconfig"
> +source "board/vocore/vocore2/Kconfig"
>
>  endmenu
> diff --git a/board/vocore/vocore2/Kconfig b/board/vocore/vocore2/Kconfig
> new file mode 100644
> index 0000000000..baeff31b69
> --- /dev/null
> +++ b/board/vocore/vocore2/Kconfig
> @@ -0,0 +1,12 @@
> +if BOARD_VOCORE2
> +
> +config SYS_BOARD
> +       default "vocore2"
> +
> +config SYS_VENDOR
> +       default "vocore"
> +
> +config SYS_CONFIG_NAME
> +       default "vocore2"
> +
> +endif
> diff --git a/board/vocore/vocore2/Makefile b/board/vocore/vocore2/Makefile
> new file mode 100644
> index 0000000000..70cd7a8e56
> --- /dev/null
> +++ b/board/vocore/vocore2/Makefile
> @@ -0,0 +1,3 @@
> +# SPDX-License-Identifier: GPL-2.0+
> +
> +obj-y += board.o
> diff --git a/board/vocore/vocore2/board.c b/board/vocore/vocore2/board.c
> new file mode 100644
> index 0000000000..27e42d1414
> --- /dev/null
> +++ b/board/vocore/vocore2/board.c
> @@ -0,0 +1,6 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
> + *
> + * Nothing actually needed here
> + */

if that file is empty, don't add it at all

> diff --git a/configs/vocore2_defconfig b/configs/vocore2_defconfig
> new file mode 100644
> index 0000000000..3989aa72f0
> --- /dev/null
> +++ b/configs/vocore2_defconfig
> @@ -0,0 +1,103 @@
> +CONFIG_MIPS=y
> +CONFIG_SPL_LIBCOMMON_SUPPORT=y
> +CONFIG_SPL_LIBGENERIC_SUPPORT=y
> +CONFIG_ENV_SIZE=0x1000
> +CONFIG_ENV_SECT_SIZE=0x1000
> +CONFIG_ENV_OFFSET=0x04e000
> +CONFIG_SPL_SERIAL_SUPPORT=y
> +CONFIG_SYS_BOOTCOUNT_ADDR=0xb000006c
> +CONFIG_SPL_SYS_MALLOC_F_LEN=0x20000
> +CONFIG_NR_DRAM_BANKS=1
> +CONFIG_SPL=y
> +CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y
> +CONFIG_ARCH_MTMIPS=y
> +CONFIG_BOARD_VOCORE2=y
> +CONFIG_SPL_UART2_SPIS_PINMUX=y
> +CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
> +CONFIG_MIPS_BOOT_FDT=y
> +CONFIG_ENV_VARS_UBOOT_CONFIG=y
> +CONFIG_SYS_BOOT_GET_CMDLINE=y
> +CONFIG_SYS_BOOT_GET_KBD=y
> +CONFIG_FIT=y
> +CONFIG_FIT_SIGNATURE=y
> +CONFIG_LEGACY_IMAGE_FORMAT=y
> +CONFIG_OF_STDOUT_VIA_ALIAS=y
> +CONFIG_LOGLEVEL=8
> +CONFIG_VERSION_VARIABLE=y
> +# CONFIG_DISPLAY_BOARDINFO is not set
> +CONFIG_DISPLAY_BOARDINFO_LATE=y
> +CONFIG_SPL_SYS_MALLOC_SIMPLE=y
> +CONFIG_SPL_NOR_SUPPORT=y
> +CONFIG_HUSH_PARSER=y
> +CONFIG_CMD_LICENSE=y
> +# CONFIG_BOOTM_NETBSD is not set
> +# CONFIG_BOOTM_PLAN9 is not set
> +# CONFIG_BOOTM_RTEMS is not set
> +# CONFIG_BOOTM_VXWORKS 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_GPIO=y
> +CONFIG_CMD_GPT=y
> +CONFIG_CMD_GPT_RENAME=y
> +# CONFIG_CMD_LOADS is not set
> +CONFIG_CMD_MMC=y
> +CONFIG_CMD_MTD=y
> +CONFIG_CMD_PART=y
> +CONFIG_CMD_SPI=y
> +CONFIG_CMD_USB=y
> +CONFIG_CMD_WDT=y
> +CONFIG_CMD_DHCP=y
> +CONFIG_CMD_MII=y
> +CONFIG_CMD_PING=y
> +CONFIG_CMD_BOOTCOUNT=y
> +CONFIG_CMD_TIME=y
> +CONFIG_CMD_FAT=y
> +CONFIG_CMD_FS_GENERIC=y
> +CONFIG_CMD_MTDPARTS=y
> +CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
> +CONFIG_MTDPARTS_DEFAULT="spi0.0:312k(u-boot),4k(env),4k(factory),2368k(kernel),-(filesystem)"
> +CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
> +CONFIG_ENV_IS_IN_SPI_FLASH=y
> +CONFIG_SYS_RELOC_GD_ENV_ADDR=y
> +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
> +CONFIG_NET_RANDOM_ETHADDR=y
> +CONFIG_SPL_DM=y
> +# CONFIG_DM_DEVICE_REMOVE is not set
> +CONFIG_BOOTCOUNT_LIMIT=y
> +CONFIG_LED=y
> +CONFIG_LED_BLINK=y
> +CONFIG_LED_GPIO=y
> +CONFIG_MMC=y
> +CONFIG_DM_MMC=y
> +# CONFIG_MMC_HW_PARTITIONING is not set
> +CONFIG_MMC_MTK=y
> +CONFIG_MTD=y
> +CONFIG_SPI_FLASH_SFDP_SUPPORT=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_MT7628_ETH=y
> +CONFIG_PHY=y
> +CONFIG_MT76X8_USB_PHY=y
> +# CONFIG_RAM_ROCKCHIP_DEBUG is not set
> +CONFIG_SPECIFY_CONSOLE_INDEX=y
> +CONFIG_CONS_INDEX=3
> +CONFIG_SPI=y
> +CONFIG_MT7621_SPI=y
> +CONFIG_USB=y
> +CONFIG_DM_USB=y
> +CONFIG_USB_EHCI_HCD=y
> +CONFIG_USB_EHCI_GENERIC=y
> +CONFIG_USB_STORAGE=y
> +CONFIG_WDT=y
> +CONFIG_WDT_MT7621=y
> +CONFIG_FS_EXT4=y
> +CONFIG_FAT_WRITE=y
> +CONFIG_LZMA=y
> +CONFIG_LZO=y
> diff --git a/configs/vocore2_defconfig_ENV_IN_FAT b/configs/vocore2_defconfig_ENV_IN_FAT
> new file mode 100644
> index 0000000000..02727859e4
> --- /dev/null
> +++ b/configs/vocore2_defconfig_ENV_IN_FAT

this config is project specific and should not be added. For mainline
we only need one working
reference config which users can customize to their needs.

> @@ -0,0 +1,104 @@
> +CONFIG_MIPS=y
> +CONFIG_SPL_LIBCOMMON_SUPPORT=y
> +CONFIG_SPL_LIBGENERIC_SUPPORT=y
> +CONFIG_ENV_SIZE=0x1000
> +CONFIG_SPL_SERIAL_SUPPORT=y
> +CONFIG_SPL_SYS_MALLOC_F_LEN=0x20000
> +CONFIG_NR_DRAM_BANKS=1
> +CONFIG_SPL=y
> +CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y
> +CONFIG_SYS_BOOTCOUNT_ADDR=0xb000006c
> +CONFIG_ARCH_MTMIPS=y
> +CONFIG_BOARD_VOCORE2=y
> +CONFIG_SPL_UART2_SPIS_PINMUX=y
> +CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
> +CONFIG_MIPS_BOOT_FDT=y
> +CONFIG_ENV_VARS_UBOOT_CONFIG=y
> +CONFIG_SYS_BOOT_GET_CMDLINE=y
> +CONFIG_SYS_BOOT_GET_KBD=y
> +CONFIG_FIT=y
> +CONFIG_FIT_SIGNATURE=y
> +CONFIG_LEGACY_IMAGE_FORMAT=y
> +CONFIG_OF_STDOUT_VIA_ALIAS=y
> +CONFIG_USE_BOOTARGS=y
> +CONFIG_LOGLEVEL=8
> +CONFIG_SYS_CONSOLE_INFO_QUIET=y
> +CONFIG_VERSION_VARIABLE=y
> +CONFIG_DISPLAY_BOARDINFO_LATE=y
> +CONFIG_BOARD_EARLY_INIT_F=y
> +CONFIG_SPL_SYS_MALLOC_SIMPLE=y
> +CONFIG_SPL_NOR_SUPPORT=y
> +CONFIG_HUSH_PARSER=y
> +CONFIG_CMD_LICENSE=y
> +# CONFIG_BOOTM_NETBSD is not set
> +# CONFIG_BOOTM_PLAN9 is not set
> +# CONFIG_BOOTM_RTEMS is not set
> +# CONFIG_BOOTM_VXWORKS 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_GPIO=y
> +CONFIG_CMD_GPT=y
> +CONFIG_CMD_GPT_RENAME=y
> +# CONFIG_CMD_LOADS is not set
> +CONFIG_CMD_MMC=y
> +CONFIG_CMD_MTD=y
> +CONFIG_CMD_PART=y
> +CONFIG_CMD_SPI=y
> +CONFIG_CMD_USB=y
> +CONFIG_CMD_WDT=y
> +CONFIG_CMD_DHCP=y
> +CONFIG_CMD_MII=y
> +CONFIG_CMD_PING=y
> +CONFIG_CMD_BOOTCOUNT=y
> +CONFIG_CMD_TIME=y
> +CONFIG_CMD_FAT=y
> +CONFIG_CMD_FS_GENERIC=y
> +CONFIG_CMD_MTDPARTS=y
> +CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
> +CONFIG_MTDPARTS_DEFAULT="spi0.0:312k(u-boot),4k(env),4k(factory),2368k(kernel),-(filesystem)"
> +CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
> +CONFIG_ENV_IS_IN_FAT=y
> +CONFIG_ENV_FAT_INTERFACE="mmc"
> +CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
> +CONFIG_SYS_RELOC_GD_ENV_ADDR=y
> +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
> +CONFIG_NET_RANDOM_ETHADDR=y
> +CONFIG_SPL_DM=y
> +# CONFIG_DM_DEVICE_REMOVE is not set
> +CONFIG_BOOTCOUNT_LIMIT=y
> +CONFIG_LED=y
> +CONFIG_LED_BLINK=y
> +CONFIG_LED_GPIO=y
> +CONFIG_MMC=y
> +CONFIG_DM_MMC=y
> +# CONFIG_MMC_HW_PARTITIONING is not set
> +CONFIG_MMC_MTK=y
> +CONFIG_MTD=y
> +CONFIG_SPI_FLASH_SFDP_SUPPORT=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_MT7628_ETH=y
> +CONFIG_PHY=y
> +CONFIG_MT76X8_USB_PHY=y
> +# CONFIG_RAM_ROCKCHIP_DEBUG is not set
> +CONFIG_SPECIFY_CONSOLE_INDEX=y
> +CONFIG_CONS_INDEX=3
> +CONFIG_SPI=y
> +CONFIG_MT7621_SPI=y
> +CONFIG_USB=y
> +CONFIG_DM_USB=y
> +CONFIG_USB_EHCI_HCD=y
> +CONFIG_USB_EHCI_GENERIC=y
> +CONFIG_USB_STORAGE=y
> +CONFIG_WDT=y
> +CONFIG_WDT_MT7621=y
> +CONFIG_FS_EXT4=y
> +CONFIG_LZMA=y
> +CONFIG_LZO=y
> diff --git a/include/configs/vocore2.h b/include/configs/vocore2.h
> new file mode 100644
> index 0000000000..6b43aa766e
> --- /dev/null
> +++ b/include/configs/vocore2.h
> @@ -0,0 +1,61 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/*
> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
> + */
> +
> +#ifndef __VOCORE2_CONFIG_H__
> +#define __VOCORE2_CONFIG_H__
> +
> +/* CPU */
> +#define CONFIG_SYS_MIPS_TIMER_FREQ     290000000

is this still necessary? Weijie implemented a custom CPU clock
handling which supports
dynamic timer clocks.

> +
> +/* RAM */
> +#define CONFIG_SYS_SDRAM_BASE          0x80000000
> +
> +#define CONFIG_SYS_LOAD_ADDR   CONFIG_SYS_SDRAM_BASE + 0x100000
> +
> +#define CONFIG_SYS_INIT_SP_OFFSET      0x400000
> +
> +/* SPL */
> +#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
> +#define CONFIG_SKIP_LOWLEVEL_INIT
> +#endif

CONFIG_SPL_BUILD is only relevant in Makefiles and shouldn't be used
in config header files

> +
> +#define CONFIG_SYS_UBOOT_START         CONFIG_SYS_TEXT_BASE
> +#define CONFIG_SPL_BSS_START_ADDR      0x80010000
> +#define CONFIG_SPL_BSS_MAX_SIZE                0x10000
> +#define CONFIG_SPL_MAX_SIZE            0x10000
> +
> +/* Dummy value */
> +#define CONFIG_SYS_UBOOT_BASE          0

where is that needed?

> +
> +/* Serial SPL */
> +#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SERIAL_SUPPORT)
> +#define CONFIG_SYS_NS16550_MEM32
> +#define CONFIG_SYS_NS16550_CLK         40000000
> +#define CONFIG_SYS_NS16550_REG_SIZE    -4
> +#define CONFIG_SYS_NS16550_COM3                0xb0000e00
> +#define CONFIG_CONS_INDEX              3
> +
> +#endif

CONFIG_SPL_SERIAL_SUPPORT as guard is enough if a guard is needed at all

> +
> +/* UART */
> +#define CONFIG_SYS_BAUDRATE_TABLE      { 9600, 19200, 38400, 57600, 115200, \
> +                                       230400, 460800, 921600 }

you don't need that anymore

> +
> +/* 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 */
> +
> +#endif //__VOCORE2_CONFIG_H__
> --
> 2.25.0
>


-- 
- Daniel

[PATCH v5] Add support for SoM "VoCore2".

[Mauro Condarelli]

Thanks Daniel,

On 2/12/20 5:58 PM, Daniel Schwierzeck wrote:
> On Wed, Feb 12, 2020 at 4:30 PM Mauro Condarelli <mc5686@mclink.it> wrote:
>> Small patch series to add support for VoCore/VoCore2 board.
>>
>> VoCore is open hardware and runs OpenWrt/LEDE.
>> It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
>> It will help you to make a smart house, study embedded system
>> or even make the tiniest router in the world.
>>
>> Details about this SoM can be found at "https://vocore.io/v2.html".
>>
>> Signed-off-by: Mauro Condarelli <mc5686@mclink.it>
>> ---
>>
>> Changes in v5:
>> - Removed unneeded (and wrong) UART2 initialization in board.c
>> - Added network setup.
>> - Removed project-specific code.
>> - Move back environment to SPI NOR.
>> - Changes to environment default settings.
>> - Rebase on current u-boot-mips/testing
>>
>> Changes in v4:
>> - Reverted some overzealous DTS cleaning.
>> - Added support for bootcount
>>
>> Changes in v3:
>> - based on top of Weijie Gao patchset:
>>     "[v3,xx/20]Refactor the architecture parts of mt7628"
>>
>> Changes in v2:
>> - Removed some dead code
>> - Changed Author to my full name (no nick)
>> - Removed unwanted fixup to .dts generation (not my call).
>> - Fixed commit message
>> - Fixed various variables/filenames to include Vendor name
>> - Changed Vendor name (Vonger -> Vocore)
>>
>>  arch/mips/dts/Makefile               |   1 +
>>  arch/mips/dts/mt7628a.dtsi           |   5 ++
>>  arch/mips/dts/vocore_vocore2.dts     |  78 ++++++++++++++++++++
>>  arch/mips/mach-mtmips/Kconfig        |   8 +++
>>  board/vocore/vocore2/Kconfig         |  12 ++++
>>  board/vocore/vocore2/Makefile        |   3 +
>>  board/vocore/vocore2/board.c         |   6 ++
>>  configs/vocore2_defconfig            | 103 ++++++++++++++++++++++++++
>>  configs/vocore2_defconfig_ENV_IN_FAT | 104 +++++++++++++++++++++++++++
>>  include/configs/vocore2.h            |  61 ++++++++++++++++
>>  10 files changed, 381 insertions(+)
>>  create mode 100644 arch/mips/dts/vocore_vocore2.dts
>>  create mode 100644 board/vocore/vocore2/Kconfig
>>  create mode 100644 board/vocore/vocore2/Makefile
>>  create mode 100644 board/vocore/vocore2/board.c
>>  create mode 100644 configs/vocore2_defconfig
>>  create mode 100644 configs/vocore2_defconfig_ENV_IN_FAT
>>  create mode 100644 include/configs/vocore2.h
>>
>> diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
>> index cbd0c8bc8b..f711e9fb59 100644
>> --- a/arch/mips/dts/Makefile
>> +++ b/arch/mips/dts/Makefile
>> @@ -23,6 +23,7 @@ dtb-$(CONFIG_BOARD_NETGEAR_DGND3700V2) += netgear,dgnd3700v2.dtb
>>  dtb-$(CONFIG_BOARD_SAGEM_FAST1704) += sagem,f at st1704.dtb
>>  dtb-$(CONFIG_BOARD_SFR_NB4_SER) += sfr,nb4-ser.dtb
>>  dtb-$(CONFIG_BOARD_TPLINK_WDR4300) += tplink_wdr4300.dtb
>> +dtb-$(CONFIG_BOARD_VOCORE2) += vocore_vocore2.dtb
>>  dtb-$(CONFIG_TARGET_JZ4780_CI20) += ci20.dtb
>>  dtb-$(CONFIG_SOC_LUTON) += luton_pcb090.dtb luton_pcb091.dtb
>>  dtb-$(CONFIG_SOC_OCELOT) += ocelot_pcb120.dtb ocelot_pcb123.dtb
>> diff --git a/arch/mips/dts/mt7628a.dtsi b/arch/mips/dts/mt7628a.dtsi
>> index 6baa63add3..192599c37f 100644
>> --- a/arch/mips/dts/mt7628a.dtsi
>> +++ b/arch/mips/dts/mt7628a.dtsi
>> @@ -402,6 +402,11 @@
>>                 builtin-cd = <1>;
>>                 r_smpl = <1>;
>>
>> +               bus-width = <4>;
>> +               max-frequency = <48000000>;
>> +               cap-sd-highspeed;
>> +               cap-mmc-highspeed;
>> +
>>                 clocks = <&clk48m>, <&clkctrl CLK_SDXC>;
>>                 clock-names = "source", "hclk";
>>
>> diff --git a/arch/mips/dts/vocore_vocore2.dts b/arch/mips/dts/vocore_vocore2.dts
>> new file mode 100644
>> index 0000000000..1d611abb73
>> --- /dev/null
>> +++ b/arch/mips/dts/vocore_vocore2.dts
>> @@ -0,0 +1,78 @@
>> +// SPDX-License-Identifier: GPL-2.0+
>> +/*
>> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
>> + */
>> +
>> +/dts-v1/;
>> +
>> +#include "mt7628a.dtsi"
>> +#include <dt-bindings/gpio/gpio.h>
>> +
>> +/ {
>> +       compatible = "vocore,vocore2", "ralink,mt7628a-soc";
>> +       model = "VoCore2";
>> +
>> +       aliases {
>> +               serial0 = &uart2;
>> +               spi0 = &spi0;
>> +       };
>> +
>> +       memory at 0 {
>> +               device_type = "memory";
>> +               reg = <0x0 0x08000000>;
>> +       };
>> +       leds {
>> +               compatible = "gpio-leds";
>> +
>> +               power {
>> +                       label = "vocore:power";
>> +                       gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
>> +                       default-state = "off";
>> +               };
>> +       };
>> +
>> +       chosen {
>> +               bootargs = "console=ttyS2,115200";
>> +               stdout-path = &uart2;
>> +       };
>> +};
>> +
>> +&pinctrl {
>> +       state_default: pin_state {
>> +               p0led {
>> +                       groups = "p0led_a";
>> +                       function = "led";
>> +               };
>> +       };
>> +};
>> +
>> +&uart2 {
>> +       status = "okay";
>> +};
>> +
>> +&spi0 {
>> +       status = "okay";
>> +       nor0: spi-flash at 0 {
>> +               #address-cells = <1>;
>> +               #size-cells = <1>;
>> +               compatible = "jedec,spi-nor";
>> +               spi-max-frequency = <25000000>;
>> +               reg = <0>;
>> +       };
>> +};
>> +
>> +&eth {
>> +       status = "okay";
>> +
>> +       pinctrl-names = "default";
>> +       pinctrl-0 = <&ephy_iot_mode>;
>> +       mediatek,poll-link-phy = <0>;
>> +};
>> +
>> +&mmc {
>> +       status = "okay";
>> +
>> +       pinctrl-names = "default";
>> +       pinctrl-0 = <&sd_iot_mode>;
>> +       pinctrl-1 = <&sd_iot_mode>;
>> +};
>> diff --git a/arch/mips/mach-mtmips/Kconfig b/arch/mips/mach-mtmips/Kconfig
>> index bcd635f438..489e466daf 100644
>> --- a/arch/mips/mach-mtmips/Kconfig
>> +++ b/arch/mips/mach-mtmips/Kconfig
>> @@ -83,6 +83,13 @@ config BOARD_MT7628_RFB
>>           SPI-NOR flash, 1 built-in switch with 5 ports, 1 UART, 1 USB host,
>>           1 SDXC, 1 PCIe socket and JTAG pins.
>>
>> +config BOARD_VOCORE2
>> +       bool "VoCore2"
>> +       depends on SOC_MT7628
>> +       help
>> +         VoCore VoCore2 board has a MT7628 SoC with 128 MiB of RAM
>> +         and 16 MiB of flash (SPI).
>> +
>>  endchoice
>>
>>  config SPL_UART2_SPIS_PINMUX
>> @@ -96,5 +103,6 @@ config SPL_UART2_SPIS_PINMUX
>>  source "board/gardena/smart-gateway-mt7688/Kconfig"
>>  source "board/mediatek/mt7628/Kconfig"
>>  source "board/seeed/linkit-smart-7688/Kconfig"
>> +source "board/vocore/vocore2/Kconfig"
>>
>>  endmenu
>> diff --git a/board/vocore/vocore2/Kconfig b/board/vocore/vocore2/Kconfig
>> new file mode 100644
>> index 0000000000..baeff31b69
>> --- /dev/null
>> +++ b/board/vocore/vocore2/Kconfig
>> @@ -0,0 +1,12 @@
>> +if BOARD_VOCORE2
>> +
>> +config SYS_BOARD
>> +       default "vocore2"
>> +
>> +config SYS_VENDOR
>> +       default "vocore"
>> +
>> +config SYS_CONFIG_NAME
>> +       default "vocore2"
>> +
>> +endif
>> diff --git a/board/vocore/vocore2/Makefile b/board/vocore/vocore2/Makefile
>> new file mode 100644
>> index 0000000000..70cd7a8e56
>> --- /dev/null
>> +++ b/board/vocore/vocore2/Makefile
>> @@ -0,0 +1,3 @@
>> +# SPDX-License-Identifier: GPL-2.0+
>> +
>> +obj-y += board.o
>> diff --git a/board/vocore/vocore2/board.c b/board/vocore/vocore2/board.c
>> new file mode 100644
>> index 0000000000..27e42d1414
>> --- /dev/null
>> +++ b/board/vocore/vocore2/board.c
>> @@ -0,0 +1,6 @@
>> +// SPDX-License-Identifier: GPL-2.0+
>> +/*
>> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
>> + *
>> + * Nothing actually needed here
>> + */
> if that file is empty, don't add it at all
Ahem...

I tried to remove it, but if I do I also have to remove entry
in board/vocore/vocore2/Makefile (leaving it empty) and this
leads (on a clean compile) to error:
? mipsel-linux-ld.bfd: cannot find board/vocore/vocore2/built-in.o: No
such file or directory
Completely removing both files bombs with:
? scripts/Makefile.build:57: board/vocore/vocore2/Makefile: No such file
or directory
It seems I should also remove board/vocore/vocore2/Kconfig,
but I'm unsure this is the right thing to do.

I have no idea about how to solve this, sorry.
Can You point me in the right direction, please?


>> diff --git a/configs/vocore2_defconfig b/configs/vocore2_defconfig
>> new file mode 100644
>> index 0000000000..3989aa72f0
>> --- /dev/null
>> +++ b/configs/vocore2_defconfig
>> @@ -0,0 +1,103 @@
>> +CONFIG_MIPS=y
>> +CONFIG_SPL_LIBCOMMON_SUPPORT=y
>> +CONFIG_SPL_LIBGENERIC_SUPPORT=y
>> +CONFIG_ENV_SIZE=0x1000
>> +CONFIG_ENV_SECT_SIZE=0x1000
>> +CONFIG_ENV_OFFSET=0x04e000
>> +CONFIG_SPL_SERIAL_SUPPORT=y
>> +CONFIG_SYS_BOOTCOUNT_ADDR=0xb000006c
>> +CONFIG_SPL_SYS_MALLOC_F_LEN=0x20000
>> +CONFIG_NR_DRAM_BANKS=1
>> +CONFIG_SPL=y
>> +CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y
>> +CONFIG_ARCH_MTMIPS=y
>> +CONFIG_BOARD_VOCORE2=y
>> +CONFIG_SPL_UART2_SPIS_PINMUX=y
>> +CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
>> +CONFIG_MIPS_BOOT_FDT=y
>> +CONFIG_ENV_VARS_UBOOT_CONFIG=y
>> +CONFIG_SYS_BOOT_GET_CMDLINE=y
>> +CONFIG_SYS_BOOT_GET_KBD=y
>> +CONFIG_FIT=y
>> +CONFIG_FIT_SIGNATURE=y
>> +CONFIG_LEGACY_IMAGE_FORMAT=y
>> +CONFIG_OF_STDOUT_VIA_ALIAS=y
>> +CONFIG_LOGLEVEL=8
>> +CONFIG_VERSION_VARIABLE=y
>> +# CONFIG_DISPLAY_BOARDINFO is not set
>> +CONFIG_DISPLAY_BOARDINFO_LATE=y
>> +CONFIG_SPL_SYS_MALLOC_SIMPLE=y
>> +CONFIG_SPL_NOR_SUPPORT=y
>> +CONFIG_HUSH_PARSER=y
>> +CONFIG_CMD_LICENSE=y
>> +# CONFIG_BOOTM_NETBSD is not set
>> +# CONFIG_BOOTM_PLAN9 is not set
>> +# CONFIG_BOOTM_RTEMS is not set
>> +# CONFIG_BOOTM_VXWORKS 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_GPIO=y
>> +CONFIG_CMD_GPT=y
>> +CONFIG_CMD_GPT_RENAME=y
>> +# CONFIG_CMD_LOADS is not set
>> +CONFIG_CMD_MMC=y
>> +CONFIG_CMD_MTD=y
>> +CONFIG_CMD_PART=y
>> +CONFIG_CMD_SPI=y
>> +CONFIG_CMD_USB=y
>> +CONFIG_CMD_WDT=y
>> +CONFIG_CMD_DHCP=y
>> +CONFIG_CMD_MII=y
>> +CONFIG_CMD_PING=y
>> +CONFIG_CMD_BOOTCOUNT=y
>> +CONFIG_CMD_TIME=y
>> +CONFIG_CMD_FAT=y
>> +CONFIG_CMD_FS_GENERIC=y
>> +CONFIG_CMD_MTDPARTS=y
>> +CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
>> +CONFIG_MTDPARTS_DEFAULT="spi0.0:312k(u-boot),4k(env),4k(factory),2368k(kernel),-(filesystem)"
>> +CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
>> +CONFIG_ENV_IS_IN_SPI_FLASH=y
>> +CONFIG_SYS_RELOC_GD_ENV_ADDR=y
>> +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
>> +CONFIG_NET_RANDOM_ETHADDR=y
>> +CONFIG_SPL_DM=y
>> +# CONFIG_DM_DEVICE_REMOVE is not set
>> +CONFIG_BOOTCOUNT_LIMIT=y
>> +CONFIG_LED=y
>> +CONFIG_LED_BLINK=y
>> +CONFIG_LED_GPIO=y
>> +CONFIG_MMC=y
>> +CONFIG_DM_MMC=y
>> +# CONFIG_MMC_HW_PARTITIONING is not set
>> +CONFIG_MMC_MTK=y
>> +CONFIG_MTD=y
>> +CONFIG_SPI_FLASH_SFDP_SUPPORT=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_MT7628_ETH=y
>> +CONFIG_PHY=y
>> +CONFIG_MT76X8_USB_PHY=y
>> +# CONFIG_RAM_ROCKCHIP_DEBUG is not set
>> +CONFIG_SPECIFY_CONSOLE_INDEX=y
>> +CONFIG_CONS_INDEX=3
>> +CONFIG_SPI=y
>> +CONFIG_MT7621_SPI=y
>> +CONFIG_USB=y
>> +CONFIG_DM_USB=y
>> +CONFIG_USB_EHCI_HCD=y
>> +CONFIG_USB_EHCI_GENERIC=y
>> +CONFIG_USB_STORAGE=y
>> +CONFIG_WDT=y
>> +CONFIG_WDT_MT7621=y
>> +CONFIG_FS_EXT4=y
>> +CONFIG_FAT_WRITE=y
>> +CONFIG_LZMA=y
>> +CONFIG_LZO=y
>> diff --git a/configs/vocore2_defconfig_ENV_IN_FAT b/configs/vocore2_defconfig_ENV_IN_FAT
>> new file mode 100644
>> index 0000000000..02727859e4
>> --- /dev/null
>> +++ b/configs/vocore2_defconfig_ENV_IN_FAT
> this config is project specific and should not be added. For mainline
> we only need one working
> reference config which users can customize to their needs.
This is a leftover, sorry.
Removed.


>> @@ -0,0 +1,104 @@
>> +CONFIG_MIPS=y
>> +CONFIG_SPL_LIBCOMMON_SUPPORT=y
>> +CONFIG_SPL_LIBGENERIC_SUPPORT=y
>> +CONFIG_ENV_SIZE=0x1000
>> +CONFIG_SPL_SERIAL_SUPPORT=y
>> +CONFIG_SPL_SYS_MALLOC_F_LEN=0x20000
>> +CONFIG_NR_DRAM_BANKS=1
>> +CONFIG_SPL=y
>> +CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y
>> +CONFIG_SYS_BOOTCOUNT_ADDR=0xb000006c
>> +CONFIG_ARCH_MTMIPS=y
>> +CONFIG_BOARD_VOCORE2=y
>> +CONFIG_SPL_UART2_SPIS_PINMUX=y
>> +CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
>> +CONFIG_MIPS_BOOT_FDT=y
>> +CONFIG_ENV_VARS_UBOOT_CONFIG=y
>> +CONFIG_SYS_BOOT_GET_CMDLINE=y
>> +CONFIG_SYS_BOOT_GET_KBD=y
>> +CONFIG_FIT=y
>> +CONFIG_FIT_SIGNATURE=y
>> +CONFIG_LEGACY_IMAGE_FORMAT=y
>> +CONFIG_OF_STDOUT_VIA_ALIAS=y
>> +CONFIG_USE_BOOTARGS=y
>> +CONFIG_LOGLEVEL=8
>> +CONFIG_SYS_CONSOLE_INFO_QUIET=y
>> +CONFIG_VERSION_VARIABLE=y
>> +CONFIG_DISPLAY_BOARDINFO_LATE=y
>> +CONFIG_BOARD_EARLY_INIT_F=y
>> +CONFIG_SPL_SYS_MALLOC_SIMPLE=y
>> +CONFIG_SPL_NOR_SUPPORT=y
>> +CONFIG_HUSH_PARSER=y
>> +CONFIG_CMD_LICENSE=y
>> +# CONFIG_BOOTM_NETBSD is not set
>> +# CONFIG_BOOTM_PLAN9 is not set
>> +# CONFIG_BOOTM_RTEMS is not set
>> +# CONFIG_BOOTM_VXWORKS 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_GPIO=y
>> +CONFIG_CMD_GPT=y
>> +CONFIG_CMD_GPT_RENAME=y
>> +# CONFIG_CMD_LOADS is not set
>> +CONFIG_CMD_MMC=y
>> +CONFIG_CMD_MTD=y
>> +CONFIG_CMD_PART=y
>> +CONFIG_CMD_SPI=y
>> +CONFIG_CMD_USB=y
>> +CONFIG_CMD_WDT=y
>> +CONFIG_CMD_DHCP=y
>> +CONFIG_CMD_MII=y
>> +CONFIG_CMD_PING=y
>> +CONFIG_CMD_BOOTCOUNT=y
>> +CONFIG_CMD_TIME=y
>> +CONFIG_CMD_FAT=y
>> +CONFIG_CMD_FS_GENERIC=y
>> +CONFIG_CMD_MTDPARTS=y
>> +CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
>> +CONFIG_MTDPARTS_DEFAULT="spi0.0:312k(u-boot),4k(env),4k(factory),2368k(kernel),-(filesystem)"
>> +CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
>> +CONFIG_ENV_IS_IN_FAT=y
>> +CONFIG_ENV_FAT_INTERFACE="mmc"
>> +CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
>> +CONFIG_SYS_RELOC_GD_ENV_ADDR=y
>> +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
>> +CONFIG_NET_RANDOM_ETHADDR=y
>> +CONFIG_SPL_DM=y
>> +# CONFIG_DM_DEVICE_REMOVE is not set
>> +CONFIG_BOOTCOUNT_LIMIT=y
>> +CONFIG_LED=y
>> +CONFIG_LED_BLINK=y
>> +CONFIG_LED_GPIO=y
>> +CONFIG_MMC=y
>> +CONFIG_DM_MMC=y
>> +# CONFIG_MMC_HW_PARTITIONING is not set
>> +CONFIG_MMC_MTK=y
>> +CONFIG_MTD=y
>> +CONFIG_SPI_FLASH_SFDP_SUPPORT=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_MT7628_ETH=y
>> +CONFIG_PHY=y
>> +CONFIG_MT76X8_USB_PHY=y
>> +# CONFIG_RAM_ROCKCHIP_DEBUG is not set
>> +CONFIG_SPECIFY_CONSOLE_INDEX=y
>> +CONFIG_CONS_INDEX=3
>> +CONFIG_SPI=y
>> +CONFIG_MT7621_SPI=y
>> +CONFIG_USB=y
>> +CONFIG_DM_USB=y
>> +CONFIG_USB_EHCI_HCD=y
>> +CONFIG_USB_EHCI_GENERIC=y
>> +CONFIG_USB_STORAGE=y
>> +CONFIG_WDT=y
>> +CONFIG_WDT_MT7621=y
>> +CONFIG_FS_EXT4=y
>> +CONFIG_LZMA=y
>> +CONFIG_LZO=y
>> diff --git a/include/configs/vocore2.h b/include/configs/vocore2.h
>> new file mode 100644
>> index 0000000000..6b43aa766e
>> --- /dev/null
>> +++ b/include/configs/vocore2.h
>> @@ -0,0 +1,61 @@
>> +/* SPDX-License-Identifier: GPL-2.0+ */
>> +/*
>> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
>> + */
>> +
>> +#ifndef __VOCORE2_CONFIG_H__
>> +#define __VOCORE2_CONFIG_H__
>> +
>> +/* CPU */
>> +#define CONFIG_SYS_MIPS_TIMER_FREQ     290000000
> is this still necessary? Weijie implemented a custom CPU clock
> handling which supports
> dynamic timer clocks.
This is referenced in arch/mips/cpu/time.c
I don't know if it's still relevant, but removing it doesn't seem
task for this patch.


>> +
>> +/* RAM */
>> +#define CONFIG_SYS_SDRAM_BASE          0x80000000
>> +
>> +#define CONFIG_SYS_LOAD_ADDR   CONFIG_SYS_SDRAM_BASE + 0x100000
>> +
>> +#define CONFIG_SYS_INIT_SP_OFFSET      0x400000
>> +
>> +/* SPL */
>> +#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
>> +#define CONFIG_SKIP_LOWLEVEL_INIT
>> +#endif
> CONFIG_SPL_BUILD is only relevant in Makefiles and shouldn't be used
> in config header files
Removed, apparently without adverse consequences.

>> +
>> +#define CONFIG_SYS_UBOOT_START         CONFIG_SYS_TEXT_BASE
>> +#define CONFIG_SPL_BSS_START_ADDR      0x80010000
>> +#define CONFIG_SPL_BSS_MAX_SIZE                0x10000
>> +#define CONFIG_SPL_MAX_SIZE            0x10000
>> +
>> +/* Dummy value */
>> +#define CONFIG_SYS_UBOOT_BASE          0
> where is that needed?
This is referenced in common/spl/spl_nor.c
I don't know if it's still relevant, but removing it doesn't seem
task for this patch.

>> +
>> +/* Serial SPL */
>> +#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SERIAL_SUPPORT)
>> +#define CONFIG_SYS_NS16550_MEM32
>> +#define CONFIG_SYS_NS16550_CLK         40000000
>> +#define CONFIG_SYS_NS16550_REG_SIZE    -4
>> +#define CONFIG_SYS_NS16550_COM3                0xb0000e00
>> +#define CONFIG_CONS_INDEX              3
>> +
>> +#endif
> CONFIG_SPL_SERIAL_SUPPORT as guard is enough if a guard is needed at all
No guard seems to be needed, at least for me (tested with and
without CONFIG_SPL_SERIAL_SUPPORT).

>> +
>> +/* UART */
>> +#define CONFIG_SYS_BAUDRATE_TABLE      { 9600, 19200, 38400, 57600, 115200, \
>> +                                       230400, 460800, 921600 }
> you don't need that anymore
Removed.

>> +
>> +/* 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 */
>> +
>> +#endif //__VOCORE2_CONFIG_H__
>> --
>> 2.25.0
>>
>>
I'll wait for input before submitting another iteration.

Thanks a lot
Mauro

[PATCH v5] Add support for SoM "VoCore2".

[Mauro Condarelli]

Hi Daniel,

On 2/12/20 11:01 PM, Mauro Condarelli wrote:
>>> +
>>> +/* SPL */
>>> +#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
>>> +#define CONFIG_SKIP_LOWLEVEL_INIT
>>> +#endif
>> CONFIG_SPL_BUILD is only relevant in Makefiles and shouldn't be used
>> in config header files
> Removed, apparently without adverse consequences.
Appearence was misguiding.
Any change to this guard leads to code unable to boot from SPI NOR.
I'll have to leave it is as-is.
Someone more knowledgeable than me will have to understand why
they are needed and how to remove them, if that's a requirement.
After all the other boards with this SoC use the same code.

Regards
Mauro

[PATCH v5] Add support for SoM "VoCore2".

[Mauro Condarelli]

Hi Daniel,
a gentle reminder...

I was unable to comply with a few of Your remarks (see below),
What should I do?
Submit v6 as is or do You have specific instructions?

Thanks a lot
Mauro

On 2/12/20 11:01 PM, Mauro Condarelli wrote:
> Thanks Daniel,
>
> On 2/12/20 5:58 PM, Daniel Schwierzeck wrote:
>> On Wed, Feb 12, 2020 at 4:30 PM Mauro Condarelli <mc5686@mclink.it> wrote:
>>> Small patch series to add support for VoCore/VoCore2 board.
>>>
>>> VoCore is open hardware and runs OpenWrt/LEDE.
>>> It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
>>> It will help you to make a smart house, study embedded system
>>> or even make the tiniest router in the world.
>>>
>>> ===8<---
>>> diff --git a/board/vocore/vocore2/board.c b/board/vocore/vocore2/board.c
>>> new file mode 100644
>>> index 0000000000..27e42d1414
>>> --- /dev/null
>>> +++ b/board/vocore/vocore2/board.c
>>> @@ -0,0 +1,6 @@
>>> +// SPDX-License-Identifier: GPL-2.0+
>>> +/*
>>> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
>>> + *
>>> + * Nothing actually needed here
>>> + */
>> if that file is empty, don't add it at all
> Ahem...
>
> I tried to remove it, but if I do I also have to remove entry
> in board/vocore/vocore2/Makefile (leaving it empty) and this
> leads (on a clean compile) to error:
> ? mipsel-linux-ld.bfd: cannot find board/vocore/vocore2/built-in.o: No
> such file or directory
> Completely removing both files bombs with:
> ? scripts/Makefile.build:57: board/vocore/vocore2/Makefile: No such file
> or directory
> It seems I should also remove board/vocore/vocore2/Kconfig,
> but I'm unsure this is the right thing to do.
>
> I have no idea about how to solve this, sorry.
> Can You point me in the right direction, please?
>
>
>>> ===8<---
>>> diff --git a/include/configs/vocore2.h b/include/configs/vocore2.h
>>> new file mode 100644
>>> index 0000000000..6b43aa766e
>>> --- /dev/null
>>> +++ b/include/configs/vocore2.h
>>> @@ -0,0 +1,61 @@
>>> +/* SPDX-License-Identifier: GPL-2.0+ */
>>> +/*
>>> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
>>> + */
>>> +
>>> +#ifndef __VOCORE2_CONFIG_H__
>>> +#define __VOCORE2_CONFIG_H__
>>> +
>>> +/* CPU */
>>> +#define CONFIG_SYS_MIPS_TIMER_FREQ     290000000
>> is this still necessary? Weijie implemented a custom CPU clock
>> handling which supports
>> dynamic timer clocks.
> This is referenced in arch/mips/cpu/time.c
> I don't know if it's still relevant, but removing it doesn't seem
> task for this patch.
>
>
>>> +
>>> +/* RAM */
>>> +#define CONFIG_SYS_SDRAM_BASE          0x80000000
>>> +
>>> +#define CONFIG_SYS_LOAD_ADDR   CONFIG_SYS_SDRAM_BASE + 0x100000
>>> +
>>> +#define CONFIG_SYS_INIT_SP_OFFSET      0x400000
>>> +
>>> +/* SPL */
>>> +#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
>>> +#define CONFIG_SKIP_LOWLEVEL_INIT
>>> +#endif
>> CONFIG_SPL_BUILD is only relevant in Makefiles and shouldn't be used
>> in config header files
> Removed, apparently without adverse consequences.
Appearence was misguiding.
Any change to this guard leads to code unable to boot from SPI NOR.
I'll have to leave it is as-is.
Someone more knowledgeable than me will have to understand why
they are needed and how to remove them, if that's a requirement.
After all the other boards with this SoC use the same code.


>>> +
>>> +#define CONFIG_SYS_UBOOT_START         CONFIG_SYS_TEXT_BASE
>>> +#define CONFIG_SPL_BSS_START_ADDR      0x80010000
>>> +#define CONFIG_SPL_BSS_MAX_SIZE                0x10000
>>> +#define CONFIG_SPL_MAX_SIZE            0x10000
>>> +
>>> +/* Dummy value */
>>> +#define CONFIG_SYS_UBOOT_BASE          0
>> where is that needed?
> This is referenced in common/spl/spl_nor.c
> I don't know if it's still relevant, but removing it doesn't seem
> task for this patch.
>
>>> ==8<---
>>>
> I'll wait for input before submitting another iteration.
>
> Thanks a lot
> Mauro

[PATCH v5] Add support for SoM "VoCore2".

[Weijie Gao]

On Mon, 2020-02-17 at 14:22 +0100, Mauro Condarelli wrote:
> Hi Daniel,
> a gentle reminder...
> 
> I was unable to comply with a few of Your remarks (see below),
> What should I do?
> Submit v6 as is or do You have specific instructions?
> 
> Thanks a lot
> Mauro
> 
> On 2/12/20 11:01 PM, Mauro Condarelli wrote:
> > Thanks Daniel,
> >
> > On 2/12/20 5:58 PM, Daniel Schwierzeck wrote:
> >> On Wed, Feb 12, 2020 at 4:30 PM Mauro Condarelli <mc5686@mclink.it> wrote:
> >>> Small patch series to add support for VoCore/VoCore2 board.
> >>>
> >>> VoCore is open hardware and runs OpenWrt/LEDE.
> >>> It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
> >>> It will help you to make a smart house, study embedded system
> >>> or even make the tiniest router in the world.
> >>>
> >>> ===8<---
> >>> diff --git a/board/vocore/vocore2/board.c b/board/vocore/vocore2/board.c
> >>> new file mode 100644
> >>> index 0000000000..27e42d1414
> >>> --- /dev/null
> >>> +++ b/board/vocore/vocore2/board.c
> >>> @@ -0,0 +1,6 @@
> >>> +// SPDX-License-Identifier: GPL-2.0+
> >>> +/*
> >>> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
> >>> + *
> >>> + * Nothing actually needed here
> >>> + */
> >> if that file is empty, don't add it at all
> > Ahem...
> >
> > I tried to remove it, but if I do I also have to remove entry
> > in board/vocore/vocore2/Makefile (leaving it empty) and this
> > leads (on a clean compile) to error:
> >   mipsel-linux-ld.bfd: cannot find board/vocore/vocore2/built-in.o: No
> > such file or directory
> > Completely removing both files bombs with:
> >   scripts/Makefile.build:57: board/vocore/vocore2/Makefile: No such file
> > or directory
> > It seems I should also remove board/vocore/vocore2/Kconfig,
> > but I'm unsure this is the right thing to do.
> >
> > I have no idea about how to solve this, sorry.
> > Can You point me in the right direction, please?
> >
> >
> >>> ===8<---
> >>> diff --git a/include/configs/vocore2.h b/include/configs/vocore2.h
> >>> new file mode 100644
> >>> index 0000000000..6b43aa766e
> >>> --- /dev/null
> >>> +++ b/include/configs/vocore2.h
> >>> @@ -0,0 +1,61 @@
> >>> +/* SPDX-License-Identifier: GPL-2.0+ */
> >>> +/*
> >>> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
> >>> + */
> >>> +
> >>> +#ifndef __VOCORE2_CONFIG_H__
> >>> +#define __VOCORE2_CONFIG_H__
> >>> +
> >>> +/* CPU */
> >>> +#define CONFIG_SYS_MIPS_TIMER_FREQ     290000000
> >> is this still necessary? Weijie implemented a custom CPU clock
> >> handling which supports
> >> dynamic timer clocks.
> > This is referenced in arch/mips/cpu/time.c
> > I don't know if it's still relevant, but removing it doesn't seem
> > task for this patch.

You have to keep this to make sure arch/mips/cpu/time.c can be compiled.

> >
> >
> >>> +
> >>> +/* RAM */
> >>> +#define CONFIG_SYS_SDRAM_BASE          0x80000000
> >>> +
> >>> +#define CONFIG_SYS_LOAD_ADDR   CONFIG_SYS_SDRAM_BASE + 0x100000
> >>> +
> >>> +#define CONFIG_SYS_INIT_SP_OFFSET      0x400000
> >>> +
> >>> +/* SPL */
> >>> +#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
> >>> +#define CONFIG_SKIP_LOWLEVEL_INIT
> >>> +#endif
> >> CONFIG_SPL_BUILD is only relevant in Makefiles and shouldn't be used
> >> in config header files
> > Removed, apparently without adverse consequences.
> Appearence was misguiding.
> Any change to this guard leads to code unable to boot from SPI NOR.
> I'll have to leave it is as-is.
> Someone more knowledgeable than me will have to understand why
> they are needed and how to remove them, if that's a requirement.
> After all the other boards with this SoC use the same code.

CONFIG_SPL_BUILD is defined only when building the SPL binary.
CONFIG_SPL is defined for both SPL and u-boot if SPL is enabled, and we
can only use CONFIG_SPL_BUILD to distinguish whether we are building SPL
or not.
CONFIG_SKIP_LOWLEVEL_INIT apparently means do not do lowlevel_init.
However lowlevel_init must be done once and only once for a SPI NOR
bootable version.

The following table describes whether lowlevel_init is needed:

             |  SPL  | u-boot
------------------------------
SPL enabled  |   Y   |   N
------------------------------
SPL disabled |       |   Y

As you can see we only want to define CONFIG_SKIP_LOWLEVEL_INIT for just
one case: SPL enabled and not building SPL, because lowlevel_init is
done in SPL and u-boot is a ram boot binary.

As a result this table produces the condition I used for other boards:
#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)

If we use only "defined(CONFIG_SPL)", CONFIG_SKIP_LOWLEVEL_INIT will be
defined for both parts, and this will finally lead to code unable to
boot from SPI NOR.

> 
> 
> >>> +
> >>> +#define CONFIG_SYS_UBOOT_START         CONFIG_SYS_TEXT_BASE
> >>> +#define CONFIG_SPL_BSS_START_ADDR      0x80010000
> >>> +#define CONFIG_SPL_BSS_MAX_SIZE                0x10000
> >>> +#define CONFIG_SPL_MAX_SIZE            0x10000
> >>> +
> >>> +/* Dummy value */
> >>> +#define CONFIG_SYS_UBOOT_BASE          0
> >> where is that needed?
> > This is referenced in common/spl/spl_nor.c
> > I don't know if it's still relevant, but removing it doesn't seem
> > task for this patch.

Same as CONFIG_SYS_MIPS_TIMER_FREQ.

> >
> >>> ==8<---
> >>>
> > I'll wait for input before submitting another iteration.
> >
> > Thanks a lot
> > Mauro
> 

[PATCH v5] Add support for SoM "VoCore2".

[Daniel Schwierzeck]

Hi Mauro,

On Mon, Feb 17, 2020 at 2:22 PM Mauro Condarelli <mc5686@mclink.it> wrote:
>
> Hi Daniel,
> a gentle reminder...
>
> I was unable to comply with a few of Your remarks (see below),
> What should I do?
> Submit v6 as is or do You have specific instructions?
>
> Thanks a lot
> Mauro
>

sorry for the late response. Please only remove
configs/vocore2_defconfig_ENV_IN_FAT and
CONFIG_BAUDRATE and ignore my other comments.

-- 
- Daniel

[PATCH v5] Add support for SoM "VoCore2".

[Weijie Gao]

On Wed, 2020-02-12 at 16:30 +0100, Mauro Condarelli wrote:
> Small patch series to add support for VoCore/VoCore2 board.
> 
> VoCore is open hardware and runs OpenWrt/LEDE.
> It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
> It will help you to make a smart house, study embedded system
> or even make the tiniest router in the world.
> 
> Details about this SoM can be found at "https://vocore.io/v2.html".
> 
> Signed-off-by: Mauro Condarelli <mc5686@mclink.it>
> ---
> 
> Changes in v5:
> - Removed unneeded (and wrong) UART2 initialization in board.c
> - Added network setup.
> - Removed project-specific code.
> - Move back environment to SPI NOR.
> - Changes to environment default settings.
> - Rebase on current u-boot-mips/testing
> 
> Changes in v4:
> - Reverted some overzealous DTS cleaning.
> - Added support for bootcount
> 
> Changes in v3:
> - based on top of Weijie Gao patchset:
>     "[v3,xx/20]Refactor the architecture parts of mt7628"
> 
> Changes in v2:
> - Removed some dead code
> - Changed Author to my full name (no nick)
> - Removed unwanted fixup to .dts generation (not my call).
> - Fixed commit message
> - Fixed various variables/filenames to include Vendor name
> - Changed Vendor name (Vonger -> Vocore)
> 
>  arch/mips/dts/Makefile               |   1 +
>  arch/mips/dts/mt7628a.dtsi           |   5 ++
>  arch/mips/dts/vocore_vocore2.dts     |  78 ++++++++++++++++++++
>  arch/mips/mach-mtmips/Kconfig        |   8 +++
>  board/vocore/vocore2/Kconfig         |  12 ++++
>  board/vocore/vocore2/Makefile        |   3 +
>  board/vocore/vocore2/board.c         |   6 ++
>  configs/vocore2_defconfig            | 103 ++++++++++++++++++++++++++
>  configs/vocore2_defconfig_ENV_IN_FAT | 104 +++++++++++++++++++++++++++
>  include/configs/vocore2.h            |  61 ++++++++++++++++
>  10 files changed, 381 insertions(+)
>  create mode 100644 arch/mips/dts/vocore_vocore2.dts
>  create mode 100644 board/vocore/vocore2/Kconfig
>  create mode 100644 board/vocore/vocore2/Makefile
>  create mode 100644 board/vocore/vocore2/board.c
>  create mode 100644 configs/vocore2_defconfig
>  create mode 100644 configs/vocore2_defconfig_ENV_IN_FAT
>  create mode 100644 include/configs/vocore2.h
> 
> diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
> index cbd0c8bc8b..f711e9fb59 100644
> --- a/arch/mips/dts/Makefile
> +++ b/arch/mips/dts/Makefile
> @@ -23,6 +23,7 @@ dtb-$(CONFIG_BOARD_NETGEAR_DGND3700V2) += netgear,dgnd3700v2.dtb
>  dtb-$(CONFIG_BOARD_SAGEM_FAST1704) += sagem,f at st1704.dtb
>  dtb-$(CONFIG_BOARD_SFR_NB4_SER) += sfr,nb4-ser.dtb
>  dtb-$(CONFIG_BOARD_TPLINK_WDR4300) += tplink_wdr4300.dtb
> +dtb-$(CONFIG_BOARD_VOCORE2) += vocore_vocore2.dtb
>  dtb-$(CONFIG_TARGET_JZ4780_CI20) += ci20.dtb
>  dtb-$(CONFIG_SOC_LUTON) += luton_pcb090.dtb luton_pcb091.dtb
>  dtb-$(CONFIG_SOC_OCELOT) += ocelot_pcb120.dtb ocelot_pcb123.dtb
> diff --git a/arch/mips/dts/mt7628a.dtsi b/arch/mips/dts/mt7628a.dtsi
> index 6baa63add3..192599c37f 100644
> --- a/arch/mips/dts/mt7628a.dtsi
> +++ b/arch/mips/dts/mt7628a.dtsi
> @@ -402,6 +402,11 @@
>  		builtin-cd = <1>;
>  		r_smpl = <1>;
>  
> +		bus-width = <4>;
> +		max-frequency = <48000000>;
> +		cap-sd-highspeed;
> +		cap-mmc-highspeed;
> +

could you please move these lines to vocore_vocore2.dts? these are board
specific properties.

>  		clocks = <&clk48m>, <&clkctrl CLK_SDXC>;
>  		clock-names = "source", "hclk";
>  
> diff --git a/arch/mips/dts/vocore_vocore2.dts b/arch/mips/dts/vocore_vocore2.dts
> new file mode 100644
> index 0000000000..1d611abb73
> --- /dev/null
> +++ b/arch/mips/dts/vocore_vocore2.dts
> @@ -0,0 +1,78 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
> + */
> +
> +/dts-v1/;
> +
> +#include "mt7628a.dtsi"
> +#include <dt-bindings/gpio/gpio.h>
> +
> +/ {
> +	compatible = "vocore,vocore2", "ralink,mt7628a-soc";
> +	model = "VoCore2";
> +
> +	aliases {
> +		serial0 = &uart2;
> +		spi0 = &spi0;
> +	};
> +
> +	memory at 0 {
> +		device_type = "memory";
> +		reg = <0x0 0x08000000>;
> +	};
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		power {
> +			label = "vocore:power";
> +			gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
> +			default-state = "off";
> +		};
> +	};
> +
> +	chosen {
> +		bootargs = "console=ttyS2,115200";
> +		stdout-path = &uart2;
> +	};
> +};
> +
> +&pinctrl {
> +	state_default: pin_state {
> +		p0led {
> +			groups = "p0led_a";
> +			function = "led";
> +		};
> +	};
> +};
> +
> +&uart2 {
> +	status = "okay";

have you tried adding these two lines?
	pinctrl-names = "default";
	pinctrl-0 = <&uart2_pwm_pins>;

> +};
> +
> +&spi0 {
> +	status = "okay";
> +	nor0: spi-flash at 0 {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		compatible = "jedec,spi-nor";
> +		spi-max-frequency = <25000000>;
> +		reg = <0>;
> +	};
> +};
> +
> +&eth {
> +	status = "okay";
> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&ephy_iot_mode>;
> +	mediatek,poll-link-phy = <0>;
> +};
> +
> +&mmc {
> +	status = "okay";
> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&sd_iot_mode>;
> +	pinctrl-1 = <&sd_iot_mode>;

pinctrl-1 should be removed. the driver never uses it.

> +};
> diff --git a/arch/mips/mach-mtmips/Kconfig b/arch/mips/mach-mtmips/Kconfig
> index bcd635f438..489e466daf 100644
> --- a/arch/mips/mach-mtmips/Kconfig
> +++ b/arch/mips/mach-mtmips/Kconfig
> @@ -83,6 +83,13 @@ config BOARD_MT7628_RFB
>  	  SPI-NOR flash, 1 built-in switch with 5 ports, 1 UART, 1 USB host,
>  	  1 SDXC, 1 PCIe socket and JTAG pins.
>  
> +config BOARD_VOCORE2
> +	bool "VoCore2"
> +	depends on SOC_MT7628
> +	help
> +	  VoCore VoCore2 board has a MT7628 SoC with 128 MiB of RAM
> +	  and 16 MiB of flash (SPI).
> +

if CONFIG_SPL_UART2_SPIS_PINMUX is the only uart pinmux used by the
board, you can add "select CONFIG_SPL_UART2_SPIS_PINMUX" here.

>  endchoice
>  
>  config SPL_UART2_SPIS_PINMUX
> @@ -96,5 +103,6 @@ config SPL_UART2_SPIS_PINMUX
>  source "board/gardena/smart-gateway-mt7688/Kconfig"
>  source "board/mediatek/mt7628/Kconfig"
>  source "board/seeed/linkit-smart-7688/Kconfig"
> +source "board/vocore/vocore2/Kconfig"
>  
>  endmenu
> diff --git a/board/vocore/vocore2/Kconfig b/board/vocore/vocore2/Kconfig
> new file mode 100644
> index 0000000000..baeff31b69
> --- /dev/null
> +++ b/board/vocore/vocore2/Kconfig
> @@ -0,0 +1,12 @@
> +if BOARD_VOCORE2
> +
> +config SYS_BOARD
> +	default "vocore2"
> +
> +config SYS_VENDOR
> +	default "vocore"
> +
> +config SYS_CONFIG_NAME
> +	default "vocore2"
> +
> +endif
> diff --git a/board/vocore/vocore2/Makefile b/board/vocore/vocore2/Makefile
> new file mode 100644
> index 0000000000..70cd7a8e56
> --- /dev/null
> +++ b/board/vocore/vocore2/Makefile
> @@ -0,0 +1,3 @@
> +# SPDX-License-Identifier: GPL-2.0+
> +
> +obj-y += board.o
> diff --git a/board/vocore/vocore2/board.c b/board/vocore/vocore2/board.c
> new file mode 100644
> index 0000000000..27e42d1414
> --- /dev/null
> +++ b/board/vocore/vocore2/board.c
> @@ -0,0 +1,6 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
> + *
> + * Nothing actually needed here
> + */
> diff --git a/configs/vocore2_defconfig b/configs/vocore2_defconfig
> new file mode 100644
> index 0000000000..3989aa72f0
> --- /dev/null
> +++ b/configs/vocore2_defconfig
> @@ -0,0 +1,103 @@
> +CONFIG_MIPS=y
> +CONFIG_SPL_LIBCOMMON_SUPPORT=y
> +CONFIG_SPL_LIBGENERIC_SUPPORT=y
> +CONFIG_ENV_SIZE=0x1000
> +CONFIG_ENV_SECT_SIZE=0x1000
> +CONFIG_ENV_OFFSET=0x04e000
> +CONFIG_SPL_SERIAL_SUPPORT=y
> +CONFIG_SYS_BOOTCOUNT_ADDR=0xb000006c
> +CONFIG_SPL_SYS_MALLOC_F_LEN=0x20000
> +CONFIG_NR_DRAM_BANKS=1
> +CONFIG_SPL=y
> +CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y
> +CONFIG_ARCH_MTMIPS=y
> +CONFIG_BOARD_VOCORE2=y
> +CONFIG_SPL_UART2_SPIS_PINMUX=y
> +CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
> +CONFIG_MIPS_BOOT_FDT=y
> +CONFIG_ENV_VARS_UBOOT_CONFIG=y
> +CONFIG_SYS_BOOT_GET_CMDLINE=y
> +CONFIG_SYS_BOOT_GET_KBD=y
> +CONFIG_FIT=y
> +CONFIG_FIT_SIGNATURE=y
> +CONFIG_LEGACY_IMAGE_FORMAT=y
> +CONFIG_OF_STDOUT_VIA_ALIAS=y
> +CONFIG_LOGLEVEL=8
> +CONFIG_VERSION_VARIABLE=y
> +# CONFIG_DISPLAY_BOARDINFO is not set
> +CONFIG_DISPLAY_BOARDINFO_LATE=y
> +CONFIG_SPL_SYS_MALLOC_SIMPLE=y
> +CONFIG_SPL_NOR_SUPPORT=y
> +CONFIG_HUSH_PARSER=y
> +CONFIG_CMD_LICENSE=y
> +# CONFIG_BOOTM_NETBSD is not set
> +# CONFIG_BOOTM_PLAN9 is not set
> +# CONFIG_BOOTM_RTEMS is not set
> +# CONFIG_BOOTM_VXWORKS 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_GPIO=y
> +CONFIG_CMD_GPT=y
> +CONFIG_CMD_GPT_RENAME=y
> +# CONFIG_CMD_LOADS is not set
> +CONFIG_CMD_MMC=y
> +CONFIG_CMD_MTD=y
> +CONFIG_CMD_PART=y
> +CONFIG_CMD_SPI=y
> +CONFIG_CMD_USB=y
> +CONFIG_CMD_WDT=y
> +CONFIG_CMD_DHCP=y
> +CONFIG_CMD_MII=y
> +CONFIG_CMD_PING=y
> +CONFIG_CMD_BOOTCOUNT=y
> +CONFIG_CMD_TIME=y
> +CONFIG_CMD_FAT=y
> +CONFIG_CMD_FS_GENERIC=y
> +CONFIG_CMD_MTDPARTS=y
> +CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
> +CONFIG_MTDPARTS_DEFAULT="spi0.0:312k(u-boot),4k(env),4k(factory),2368k(kernel),-(filesystem)"
> +CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
> +CONFIG_ENV_IS_IN_SPI_FLASH=y
> +CONFIG_SYS_RELOC_GD_ENV_ADDR=y
> +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
> +CONFIG_NET_RANDOM_ETHADDR=y
> +CONFIG_SPL_DM=y
> +# CONFIG_DM_DEVICE_REMOVE is not set
> +CONFIG_BOOTCOUNT_LIMIT=y
> +CONFIG_LED=y
> +CONFIG_LED_BLINK=y
> +CONFIG_LED_GPIO=y
> +CONFIG_MMC=y
> +CONFIG_DM_MMC=y
> +# CONFIG_MMC_HW_PARTITIONING is not set
> +CONFIG_MMC_MTK=y
> +CONFIG_MTD=y
> +CONFIG_SPI_FLASH_SFDP_SUPPORT=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_MT7628_ETH=y
> +CONFIG_PHY=y
> +CONFIG_MT76X8_USB_PHY=y
> +# CONFIG_RAM_ROCKCHIP_DEBUG is not set
> +CONFIG_SPECIFY_CONSOLE_INDEX=y
> +CONFIG_CONS_INDEX=3
> +CONFIG_SPI=y
> +CONFIG_MT7621_SPI=y
> +CONFIG_USB=y
> +CONFIG_DM_USB=y
> +CONFIG_USB_EHCI_HCD=y
> +CONFIG_USB_EHCI_GENERIC=y
> +CONFIG_USB_STORAGE=y
> +CONFIG_WDT=y
> +CONFIG_WDT_MT7621=y
> +CONFIG_FS_EXT4=y
> +CONFIG_FAT_WRITE=y
> +CONFIG_LZMA=y
> +CONFIG_LZO=y
> diff --git a/configs/vocore2_defconfig_ENV_IN_FAT b/configs/vocore2_defconfig_ENV_IN_FAT
> new file mode 100644
> index 0000000000..02727859e4
> --- /dev/null
> +++ b/configs/vocore2_defconfig_ENV_IN_FAT
> @@ -0,0 +1,104 @@
> +CONFIG_MIPS=y
> +CONFIG_SPL_LIBCOMMON_SUPPORT=y
> +CONFIG_SPL_LIBGENERIC_SUPPORT=y
> +CONFIG_ENV_SIZE=0x1000
> +CONFIG_SPL_SERIAL_SUPPORT=y
> +CONFIG_SPL_SYS_MALLOC_F_LEN=0x20000
> +CONFIG_NR_DRAM_BANKS=1
> +CONFIG_SPL=y
> +CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y
> +CONFIG_SYS_BOOTCOUNT_ADDR=0xb000006c
> +CONFIG_ARCH_MTMIPS=y
> +CONFIG_BOARD_VOCORE2=y
> +CONFIG_SPL_UART2_SPIS_PINMUX=y
> +CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
> +CONFIG_MIPS_BOOT_FDT=y
> +CONFIG_ENV_VARS_UBOOT_CONFIG=y
> +CONFIG_SYS_BOOT_GET_CMDLINE=y
> +CONFIG_SYS_BOOT_GET_KBD=y
> +CONFIG_FIT=y
> +CONFIG_FIT_SIGNATURE=y
> +CONFIG_LEGACY_IMAGE_FORMAT=y
> +CONFIG_OF_STDOUT_VIA_ALIAS=y
> +CONFIG_USE_BOOTARGS=y
> +CONFIG_LOGLEVEL=8
> +CONFIG_SYS_CONSOLE_INFO_QUIET=y
> +CONFIG_VERSION_VARIABLE=y
> +CONFIG_DISPLAY_BOARDINFO_LATE=y
> +CONFIG_BOARD_EARLY_INIT_F=y
> +CONFIG_SPL_SYS_MALLOC_SIMPLE=y
> +CONFIG_SPL_NOR_SUPPORT=y
> +CONFIG_HUSH_PARSER=y
> +CONFIG_CMD_LICENSE=y
> +# CONFIG_BOOTM_NETBSD is not set
> +# CONFIG_BOOTM_PLAN9 is not set
> +# CONFIG_BOOTM_RTEMS is not set
> +# CONFIG_BOOTM_VXWORKS 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_GPIO=y
> +CONFIG_CMD_GPT=y
> +CONFIG_CMD_GPT_RENAME=y
> +# CONFIG_CMD_LOADS is not set
> +CONFIG_CMD_MMC=y
> +CONFIG_CMD_MTD=y
> +CONFIG_CMD_PART=y
> +CONFIG_CMD_SPI=y
> +CONFIG_CMD_USB=y
> +CONFIG_CMD_WDT=y
> +CONFIG_CMD_DHCP=y
> +CONFIG_CMD_MII=y
> +CONFIG_CMD_PING=y
> +CONFIG_CMD_BOOTCOUNT=y
> +CONFIG_CMD_TIME=y
> +CONFIG_CMD_FAT=y
> +CONFIG_CMD_FS_GENERIC=y
> +CONFIG_CMD_MTDPARTS=y
> +CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
> +CONFIG_MTDPARTS_DEFAULT="spi0.0:312k(u-boot),4k(env),4k(factory),2368k(kernel),-(filesystem)"
> +CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
> +CONFIG_ENV_IS_IN_FAT=y
> +CONFIG_ENV_FAT_INTERFACE="mmc"
> +CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
> +CONFIG_SYS_RELOC_GD_ENV_ADDR=y
> +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
> +CONFIG_NET_RANDOM_ETHADDR=y
> +CONFIG_SPL_DM=y
> +# CONFIG_DM_DEVICE_REMOVE is not set
> +CONFIG_BOOTCOUNT_LIMIT=y
> +CONFIG_LED=y
> +CONFIG_LED_BLINK=y
> +CONFIG_LED_GPIO=y
> +CONFIG_MMC=y
> +CONFIG_DM_MMC=y
> +# CONFIG_MMC_HW_PARTITIONING is not set
> +CONFIG_MMC_MTK=y
> +CONFIG_MTD=y
> +CONFIG_SPI_FLASH_SFDP_SUPPORT=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_MT7628_ETH=y
> +CONFIG_PHY=y
> +CONFIG_MT76X8_USB_PHY=y
> +# CONFIG_RAM_ROCKCHIP_DEBUG is not set
> +CONFIG_SPECIFY_CONSOLE_INDEX=y
> +CONFIG_CONS_INDEX=3
> +CONFIG_SPI=y
> +CONFIG_MT7621_SPI=y
> +CONFIG_USB=y
> +CONFIG_DM_USB=y
> +CONFIG_USB_EHCI_HCD=y
> +CONFIG_USB_EHCI_GENERIC=y
> +CONFIG_USB_STORAGE=y
> +CONFIG_WDT=y
> +CONFIG_WDT_MT7621=y
> +CONFIG_FS_EXT4=y
> +CONFIG_LZMA=y
> +CONFIG_LZO=y
> diff --git a/include/configs/vocore2.h b/include/configs/vocore2.h
> new file mode 100644
> index 0000000000..6b43aa766e
> --- /dev/null
> +++ b/include/configs/vocore2.h
> @@ -0,0 +1,61 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/*
> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
> + */
> +
> +#ifndef __VOCORE2_CONFIG_H__
> +#define __VOCORE2_CONFIG_H__
> +
> +/* CPU */
> +#define CONFIG_SYS_MIPS_TIMER_FREQ	290000000
> +
> +/* RAM */
> +#define CONFIG_SYS_SDRAM_BASE		0x80000000
> +
> +#define CONFIG_SYS_LOAD_ADDR	CONFIG_SYS_SDRAM_BASE + 0x100000
> +
> +#define CONFIG_SYS_INIT_SP_OFFSET	0x400000
> +
> +/* SPL */
> +#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
> +#define CONFIG_SKIP_LOWLEVEL_INIT
> +#endif
> +
> +#define CONFIG_SYS_UBOOT_START		CONFIG_SYS_TEXT_BASE
> +#define CONFIG_SPL_BSS_START_ADDR	0x80010000
> +#define CONFIG_SPL_BSS_MAX_SIZE		0x10000
> +#define CONFIG_SPL_MAX_SIZE		0x10000
> +
> +/* Dummy value */
> +#define CONFIG_SYS_UBOOT_BASE		0
> +
> +/* Serial SPL */
> +#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SERIAL_SUPPORT)
> +#define CONFIG_SYS_NS16550_MEM32
> +#define CONFIG_SYS_NS16550_CLK		40000000
> +#define CONFIG_SYS_NS16550_REG_SIZE	-4
> +#define CONFIG_SYS_NS16550_COM3		0xb0000e00
> +#define CONFIG_CONS_INDEX		3
> +
> +#endif
> +
> +/* UART */
> +#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200, \
> +					230400, 460800, 921600 }
> +
> +/* 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 */
> +
> +#endif //__VOCORE2_CONFIG_H__

[PATCH v5] Add support for SoM "VoCore2".

[Mauro Condarelli]

Thanks Weijie.

On 2/13/20 3:32 AM, Weijie Gao wrote:
> On Wed, 2020-02-12 at 16:30 +0100, Mauro Condarelli wrote:
>> Small patch series to add support for VoCore/VoCore2 board.
>>
>> VoCore is open hardware and runs OpenWrt/LEDE.
>> It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
>> It will help you to make a smart house, study embedded system
>> or even make the tiniest router in the world.
>>
>> Details about this SoM can be found at "https://vocore.io/v2.html".
>>
>> Signed-off-by: Mauro Condarelli <mc5686@mclink.it>
>> ---
>>
>> Changes in v5:
>> - Removed unneeded (and wrong) UART2 initialization in board.c
>> - Added network setup.
>> - Removed project-specific code.
>> - Move back environment to SPI NOR.
>> - Changes to environment default settings.
>> - Rebase on current u-boot-mips/testing
>>
>> Changes in v4:
>> - Reverted some overzealous DTS cleaning.
>> - Added support for bootcount
>>
>> Changes in v3:
>> - based on top of Weijie Gao patchset:
>>     "[v3,xx/20]Refactor the architecture parts of mt7628"
>>
>> Changes in v2:
>> - Removed some dead code
>> - Changed Author to my full name (no nick)
>> - Removed unwanted fixup to .dts generation (not my call).
>> - Fixed commit message
>> - Fixed various variables/filenames to include Vendor name
>> - Changed Vendor name (Vonger -> Vocore)
>>
>>  arch/mips/dts/Makefile               |   1 +
>>  arch/mips/dts/mt7628a.dtsi           |   5 ++
>>  arch/mips/dts/vocore_vocore2.dts     |  78 ++++++++++++++++++++
>>  arch/mips/mach-mtmips/Kconfig        |   8 +++
>>  board/vocore/vocore2/Kconfig         |  12 ++++
>>  board/vocore/vocore2/Makefile        |   3 +
>>  board/vocore/vocore2/board.c         |   6 ++
>>  configs/vocore2_defconfig            | 103 ++++++++++++++++++++++++++
>>  configs/vocore2_defconfig_ENV_IN_FAT | 104 +++++++++++++++++++++++++++
>>  include/configs/vocore2.h            |  61 ++++++++++++++++
>>  10 files changed, 381 insertions(+)
>>  create mode 100644 arch/mips/dts/vocore_vocore2.dts
>>  create mode 100644 board/vocore/vocore2/Kconfig
>>  create mode 100644 board/vocore/vocore2/Makefile
>>  create mode 100644 board/vocore/vocore2/board.c
>>  create mode 100644 configs/vocore2_defconfig
>>  create mode 100644 configs/vocore2_defconfig_ENV_IN_FAT
>>  create mode 100644 include/configs/vocore2.h
>>
>> diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
>> index cbd0c8bc8b..f711e9fb59 100644
>> --- a/arch/mips/dts/Makefile
>> +++ b/arch/mips/dts/Makefile
>> @@ -23,6 +23,7 @@ dtb-$(CONFIG_BOARD_NETGEAR_DGND3700V2) += netgear,dgnd3700v2.dtb
>>  dtb-$(CONFIG_BOARD_SAGEM_FAST1704) += sagem,f at st1704.dtb
>>  dtb-$(CONFIG_BOARD_SFR_NB4_SER) += sfr,nb4-ser.dtb
>>  dtb-$(CONFIG_BOARD_TPLINK_WDR4300) += tplink_wdr4300.dtb
>> +dtb-$(CONFIG_BOARD_VOCORE2) += vocore_vocore2.dtb
>>  dtb-$(CONFIG_TARGET_JZ4780_CI20) += ci20.dtb
>>  dtb-$(CONFIG_SOC_LUTON) += luton_pcb090.dtb luton_pcb091.dtb
>>  dtb-$(CONFIG_SOC_OCELOT) += ocelot_pcb120.dtb ocelot_pcb123.dtb
>> diff --git a/arch/mips/dts/mt7628a.dtsi b/arch/mips/dts/mt7628a.dtsi
>> index 6baa63add3..192599c37f 100644
>> --- a/arch/mips/dts/mt7628a.dtsi
>> +++ b/arch/mips/dts/mt7628a.dtsi
>> @@ -402,6 +402,11 @@
>>  		builtin-cd = <1>;
>>  		r_smpl = <1>;
>>  
>> +		bus-width = <4>;
>> +		max-frequency = <48000000>;
>> +		cap-sd-highspeed;
>> +		cap-mmc-highspeed;
>> +
> could you please move these lines to vocore_vocore2.dts? these are board
> specific properties.
Done.

>>  		clocks = <&clk48m>, <&clkctrl CLK_SDXC>;
>>  		clock-names = "source", "hclk";
>>  
>> diff --git a/arch/mips/dts/vocore_vocore2.dts b/arch/mips/dts/vocore_vocore2.dts
>> new file mode 100644
>> index 0000000000..1d611abb73
>> --- /dev/null
>> +++ b/arch/mips/dts/vocore_vocore2.dts
>> @@ -0,0 +1,78 @@
>> +// SPDX-License-Identifier: GPL-2.0+
>> +/*
>> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
>> + */
>> +
>> +/dts-v1/;
>> +
>> +#include "mt7628a.dtsi"
>> +#include <dt-bindings/gpio/gpio.h>
>> +
>> +/ {
>> +	compatible = "vocore,vocore2", "ralink,mt7628a-soc";
>> +	model = "VoCore2";
>> +
>> +	aliases {
>> +		serial0 = &uart2;
>> +		spi0 = &spi0;
>> +	};
>> +
>> +	memory at 0 {
>> +		device_type = "memory";
>> +		reg = <0x0 0x08000000>;
>> +	};
>> +	leds {
>> +		compatible = "gpio-leds";
>> +
>> +		power {
>> +			label = "vocore:power";
>> +			gpios = <&gpio1 12 GPIO_ACTIVE_HIGH>;
>> +			default-state = "off";
>> +		};
>> +	};
>> +
>> +	chosen {
>> +		bootargs = "console=ttyS2,115200";
>> +		stdout-path = &uart2;
>> +	};
>> +};
>> +
>> +&pinctrl {
>> +	state_default: pin_state {
>> +		p0led {
>> +			groups = "p0led_a";
>> +			function = "led";
>> +		};
>> +	};
>> +};
>> +
>> +&uart2 {
>> +	status = "okay";
> have you tried adding these two lines?
> 	pinctrl-names = "default";
> 	pinctrl-0 = <&uart2_pwm_pins>;
Yes that was one of the tests I did, but that did not seem
enough; sincerely I don't remember why i removed them
again. I will recheck before V6.

>> +};
>> +
>> +&spi0 {
>> +	status = "okay";
>> +	nor0: spi-flash at 0 {
>> +		#address-cells = <1>;
>> +		#size-cells = <1>;
>> +		compatible = "jedec,spi-nor";
>> +		spi-max-frequency = <25000000>;
>> +		reg = <0>;
>> +	};
>> +};
>> +
>> +&eth {
>> +	status = "okay";
>> +
>> +	pinctrl-names = "default";
>> +	pinctrl-0 = <&ephy_iot_mode>;
>> +	mediatek,poll-link-phy = <0>;
>> +};
>> +
>> +&mmc {
>> +	status = "okay";
>> +
>> +	pinctrl-names = "default";
>> +	pinctrl-0 = <&sd_iot_mode>;
>> +	pinctrl-1 = <&sd_iot_mode>;
> pinctrl-1 should be removed. the driver never uses it.
Done.

>> +};
>> diff --git a/arch/mips/mach-mtmips/Kconfig b/arch/mips/mach-mtmips/Kconfig
>> index bcd635f438..489e466daf 100644
>> --- a/arch/mips/mach-mtmips/Kconfig
>> +++ b/arch/mips/mach-mtmips/Kconfig
>> @@ -83,6 +83,13 @@ config BOARD_MT7628_RFB
>>  	  SPI-NOR flash, 1 built-in switch with 5 ports, 1 UART, 1 USB host,
>>  	  1 SDXC, 1 PCIe socket and JTAG pins.
>>  
>> +config BOARD_VOCORE2
>> +	bool "VoCore2"
>> +	depends on SOC_MT7628
>> +	help
>> +	  VoCore VoCore2 board has a MT7628 SoC with 128 MiB of RAM
>> +	  and 16 MiB of flash (SPI).
>> +
> if CONFIG_SPL_UART2_SPIS_PINMUX is the only uart pinmux used by the
> board, you can add "select CONFIG_SPL_UART2_SPIS_PINMUX" here.
I thought about this, but I was unsure.
Will do in v6.

>>  endchoice
>>  
>>  config SPL_UART2_SPIS_PINMUX
>> @@ -96,5 +103,6 @@ config SPL_UART2_SPIS_PINMUX
>>  source "board/gardena/smart-gateway-mt7688/Kconfig"
>>  source "board/mediatek/mt7628/Kconfig"
>>  source "board/seeed/linkit-smart-7688/Kconfig"
>> +source "board/vocore/vocore2/Kconfig"
>>  
>>  endmenu
>> diff --git a/board/vocore/vocore2/Kconfig b/board/vocore/vocore2/Kconfig
>> new file mode 100644
>> index 0000000000..baeff31b69
>> --- /dev/null
>> +++ b/board/vocore/vocore2/Kconfig
>> @@ -0,0 +1,12 @@
>> +if BOARD_VOCORE2
>> +
>> +config SYS_BOARD
>> +	default "vocore2"
>> +
>> +config SYS_VENDOR
>> +	default "vocore"
>> +
>> +config SYS_CONFIG_NAME
>> +	default "vocore2"
>> +
>> +endif
>> diff --git a/board/vocore/vocore2/Makefile b/board/vocore/vocore2/Makefile
>> new file mode 100644
>> index 0000000000..70cd7a8e56
>> --- /dev/null
>> +++ b/board/vocore/vocore2/Makefile
>> @@ -0,0 +1,3 @@
>> +# SPDX-License-Identifier: GPL-2.0+
>> +
>> +obj-y += board.o
>> diff --git a/board/vocore/vocore2/board.c b/board/vocore/vocore2/board.c
>> new file mode 100644
>> index 0000000000..27e42d1414
>> --- /dev/null
>> +++ b/board/vocore/vocore2/board.c
>> @@ -0,0 +1,6 @@
>> +// SPDX-License-Identifier: GPL-2.0+
>> +/*
>> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
>> + *
>> + * Nothing actually needed here
>> + */
>> diff --git a/configs/vocore2_defconfig b/configs/vocore2_defconfig
>> new file mode 100644
>> index 0000000000..3989aa72f0
>> --- /dev/null
>> +++ b/configs/vocore2_defconfig
>> @@ -0,0 +1,103 @@
>> +CONFIG_MIPS=y
>> +CONFIG_SPL_LIBCOMMON_SUPPORT=y
>> +CONFIG_SPL_LIBGENERIC_SUPPORT=y
>> +CONFIG_ENV_SIZE=0x1000
>> +CONFIG_ENV_SECT_SIZE=0x1000
>> +CONFIG_ENV_OFFSET=0x04e000
>> +CONFIG_SPL_SERIAL_SUPPORT=y
>> +CONFIG_SYS_BOOTCOUNT_ADDR=0xb000006c
>> +CONFIG_SPL_SYS_MALLOC_F_LEN=0x20000
>> +CONFIG_NR_DRAM_BANKS=1
>> +CONFIG_SPL=y
>> +CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y
>> +CONFIG_ARCH_MTMIPS=y
>> +CONFIG_BOARD_VOCORE2=y
>> +CONFIG_SPL_UART2_SPIS_PINMUX=y
>> +CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
>> +CONFIG_MIPS_BOOT_FDT=y
>> +CONFIG_ENV_VARS_UBOOT_CONFIG=y
>> +CONFIG_SYS_BOOT_GET_CMDLINE=y
>> +CONFIG_SYS_BOOT_GET_KBD=y
>> +CONFIG_FIT=y
>> +CONFIG_FIT_SIGNATURE=y
>> +CONFIG_LEGACY_IMAGE_FORMAT=y
>> +CONFIG_OF_STDOUT_VIA_ALIAS=y
>> +CONFIG_LOGLEVEL=8
>> +CONFIG_VERSION_VARIABLE=y
>> +# CONFIG_DISPLAY_BOARDINFO is not set
>> +CONFIG_DISPLAY_BOARDINFO_LATE=y
>> +CONFIG_SPL_SYS_MALLOC_SIMPLE=y
>> +CONFIG_SPL_NOR_SUPPORT=y
>> +CONFIG_HUSH_PARSER=y
>> +CONFIG_CMD_LICENSE=y
>> +# CONFIG_BOOTM_NETBSD is not set
>> +# CONFIG_BOOTM_PLAN9 is not set
>> +# CONFIG_BOOTM_RTEMS is not set
>> +# CONFIG_BOOTM_VXWORKS 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_GPIO=y
>> +CONFIG_CMD_GPT=y
>> +CONFIG_CMD_GPT_RENAME=y
>> +# CONFIG_CMD_LOADS is not set
>> +CONFIG_CMD_MMC=y
>> +CONFIG_CMD_MTD=y
>> +CONFIG_CMD_PART=y
>> +CONFIG_CMD_SPI=y
>> +CONFIG_CMD_USB=y
>> +CONFIG_CMD_WDT=y
>> +CONFIG_CMD_DHCP=y
>> +CONFIG_CMD_MII=y
>> +CONFIG_CMD_PING=y
>> +CONFIG_CMD_BOOTCOUNT=y
>> +CONFIG_CMD_TIME=y
>> +CONFIG_CMD_FAT=y
>> +CONFIG_CMD_FS_GENERIC=y
>> +CONFIG_CMD_MTDPARTS=y
>> +CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
>> +CONFIG_MTDPARTS_DEFAULT="spi0.0:312k(u-boot),4k(env),4k(factory),2368k(kernel),-(filesystem)"
>> +CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
>> +CONFIG_ENV_IS_IN_SPI_FLASH=y
>> +CONFIG_SYS_RELOC_GD_ENV_ADDR=y
>> +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
>> +CONFIG_NET_RANDOM_ETHADDR=y
>> +CONFIG_SPL_DM=y
>> +# CONFIG_DM_DEVICE_REMOVE is not set
>> +CONFIG_BOOTCOUNT_LIMIT=y
>> +CONFIG_LED=y
>> +CONFIG_LED_BLINK=y
>> +CONFIG_LED_GPIO=y
>> +CONFIG_MMC=y
>> +CONFIG_DM_MMC=y
>> +# CONFIG_MMC_HW_PARTITIONING is not set
>> +CONFIG_MMC_MTK=y
>> +CONFIG_MTD=y
>> +CONFIG_SPI_FLASH_SFDP_SUPPORT=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_MT7628_ETH=y
>> +CONFIG_PHY=y
>> +CONFIG_MT76X8_USB_PHY=y
>> +# CONFIG_RAM_ROCKCHIP_DEBUG is not set
>> +CONFIG_SPECIFY_CONSOLE_INDEX=y
>> +CONFIG_CONS_INDEX=3
>> +CONFIG_SPI=y
>> +CONFIG_MT7621_SPI=y
>> +CONFIG_USB=y
>> +CONFIG_DM_USB=y
>> +CONFIG_USB_EHCI_HCD=y
>> +CONFIG_USB_EHCI_GENERIC=y
>> +CONFIG_USB_STORAGE=y
>> +CONFIG_WDT=y
>> +CONFIG_WDT_MT7621=y
>> +CONFIG_FS_EXT4=y
>> +CONFIG_FAT_WRITE=y
>> +CONFIG_LZMA=y
>> +CONFIG_LZO=y
>> diff --git a/configs/vocore2_defconfig_ENV_IN_FAT b/configs/vocore2_defconfig_ENV_IN_FAT
>> new file mode 100644
>> index 0000000000..02727859e4
>> --- /dev/null
>> +++ b/configs/vocore2_defconfig_ENV_IN_FAT
>> @@ -0,0 +1,104 @@
>> +CONFIG_MIPS=y
>> +CONFIG_SPL_LIBCOMMON_SUPPORT=y
>> +CONFIG_SPL_LIBGENERIC_SUPPORT=y
>> +CONFIG_ENV_SIZE=0x1000
>> +CONFIG_SPL_SERIAL_SUPPORT=y
>> +CONFIG_SPL_SYS_MALLOC_F_LEN=0x20000
>> +CONFIG_NR_DRAM_BANKS=1
>> +CONFIG_SPL=y
>> +CONFIG_SYS_BOOTCOUNT_SINGLEWORD=y
>> +CONFIG_SYS_BOOTCOUNT_ADDR=0xb000006c
>> +CONFIG_ARCH_MTMIPS=y
>> +CONFIG_BOARD_VOCORE2=y
>> +CONFIG_SPL_UART2_SPIS_PINMUX=y
>> +CONFIG_RESTORE_EXCEPTION_VECTOR_BASE=y
>> +CONFIG_MIPS_BOOT_FDT=y
>> +CONFIG_ENV_VARS_UBOOT_CONFIG=y
>> +CONFIG_SYS_BOOT_GET_CMDLINE=y
>> +CONFIG_SYS_BOOT_GET_KBD=y
>> +CONFIG_FIT=y
>> +CONFIG_FIT_SIGNATURE=y
>> +CONFIG_LEGACY_IMAGE_FORMAT=y
>> +CONFIG_OF_STDOUT_VIA_ALIAS=y
>> +CONFIG_USE_BOOTARGS=y
>> +CONFIG_LOGLEVEL=8
>> +CONFIG_SYS_CONSOLE_INFO_QUIET=y
>> +CONFIG_VERSION_VARIABLE=y
>> +CONFIG_DISPLAY_BOARDINFO_LATE=y
>> +CONFIG_BOARD_EARLY_INIT_F=y
>> +CONFIG_SPL_SYS_MALLOC_SIMPLE=y
>> +CONFIG_SPL_NOR_SUPPORT=y
>> +CONFIG_HUSH_PARSER=y
>> +CONFIG_CMD_LICENSE=y
>> +# CONFIG_BOOTM_NETBSD is not set
>> +# CONFIG_BOOTM_PLAN9 is not set
>> +# CONFIG_BOOTM_RTEMS is not set
>> +# CONFIG_BOOTM_VXWORKS 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_GPIO=y
>> +CONFIG_CMD_GPT=y
>> +CONFIG_CMD_GPT_RENAME=y
>> +# CONFIG_CMD_LOADS is not set
>> +CONFIG_CMD_MMC=y
>> +CONFIG_CMD_MTD=y
>> +CONFIG_CMD_PART=y
>> +CONFIG_CMD_SPI=y
>> +CONFIG_CMD_USB=y
>> +CONFIG_CMD_WDT=y
>> +CONFIG_CMD_DHCP=y
>> +CONFIG_CMD_MII=y
>> +CONFIG_CMD_PING=y
>> +CONFIG_CMD_BOOTCOUNT=y
>> +CONFIG_CMD_TIME=y
>> +CONFIG_CMD_FAT=y
>> +CONFIG_CMD_FS_GENERIC=y
>> +CONFIG_CMD_MTDPARTS=y
>> +CONFIG_MTDIDS_DEFAULT="nor0=spi0.0"
>> +CONFIG_MTDPARTS_DEFAULT="spi0.0:312k(u-boot),4k(env),4k(factory),2368k(kernel),-(filesystem)"
>> +CONFIG_DEFAULT_DEVICE_TREE="vocore_vocore2"
>> +CONFIG_ENV_IS_IN_FAT=y
>> +CONFIG_ENV_FAT_INTERFACE="mmc"
>> +CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
>> +CONFIG_SYS_RELOC_GD_ENV_ADDR=y
>> +CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
>> +CONFIG_NET_RANDOM_ETHADDR=y
>> +CONFIG_SPL_DM=y
>> +# CONFIG_DM_DEVICE_REMOVE is not set
>> +CONFIG_BOOTCOUNT_LIMIT=y
>> +CONFIG_LED=y
>> +CONFIG_LED_BLINK=y
>> +CONFIG_LED_GPIO=y
>> +CONFIG_MMC=y
>> +CONFIG_DM_MMC=y
>> +# CONFIG_MMC_HW_PARTITIONING is not set
>> +CONFIG_MMC_MTK=y
>> +CONFIG_MTD=y
>> +CONFIG_SPI_FLASH_SFDP_SUPPORT=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_MT7628_ETH=y
>> +CONFIG_PHY=y
>> +CONFIG_MT76X8_USB_PHY=y
>> +# CONFIG_RAM_ROCKCHIP_DEBUG is not set
>> +CONFIG_SPECIFY_CONSOLE_INDEX=y
>> +CONFIG_CONS_INDEX=3
>> +CONFIG_SPI=y
>> +CONFIG_MT7621_SPI=y
>> +CONFIG_USB=y
>> +CONFIG_DM_USB=y
>> +CONFIG_USB_EHCI_HCD=y
>> +CONFIG_USB_EHCI_GENERIC=y
>> +CONFIG_USB_STORAGE=y
>> +CONFIG_WDT=y
>> +CONFIG_WDT_MT7621=y
>> +CONFIG_FS_EXT4=y
>> +CONFIG_LZMA=y
>> +CONFIG_LZO=y
>> diff --git a/include/configs/vocore2.h b/include/configs/vocore2.h
>> new file mode 100644
>> index 0000000000..6b43aa766e
>> --- /dev/null
>> +++ b/include/configs/vocore2.h
>> @@ -0,0 +1,61 @@
>> +/* SPDX-License-Identifier: GPL-2.0+ */
>> +/*
>> + * Copyright (C) 2019 Mauro Condarelli <mc5686@mclink.it>
>> + */
>> +
>> +#ifndef __VOCORE2_CONFIG_H__
>> +#define __VOCORE2_CONFIG_H__
>> +
>> +/* CPU */
>> +#define CONFIG_SYS_MIPS_TIMER_FREQ	290000000
>> +
>> +/* RAM */
>> +#define CONFIG_SYS_SDRAM_BASE		0x80000000
>> +
>> +#define CONFIG_SYS_LOAD_ADDR	CONFIG_SYS_SDRAM_BASE + 0x100000
>> +
>> +#define CONFIG_SYS_INIT_SP_OFFSET	0x400000
>> +
>> +/* SPL */
>> +#if defined(CONFIG_SPL) && !defined(CONFIG_SPL_BUILD)
>> +#define CONFIG_SKIP_LOWLEVEL_INIT
>> +#endif
>> +
>> +#define CONFIG_SYS_UBOOT_START		CONFIG_SYS_TEXT_BASE
>> +#define CONFIG_SPL_BSS_START_ADDR	0x80010000
>> +#define CONFIG_SPL_BSS_MAX_SIZE		0x10000
>> +#define CONFIG_SPL_MAX_SIZE		0x10000
>> +
>> +/* Dummy value */
>> +#define CONFIG_SYS_UBOOT_BASE		0
>> +
>> +/* Serial SPL */
>> +#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_SERIAL_SUPPORT)
>> +#define CONFIG_SYS_NS16550_MEM32
>> +#define CONFIG_SYS_NS16550_CLK		40000000
>> +#define CONFIG_SYS_NS16550_REG_SIZE	-4
>> +#define CONFIG_SYS_NS16550_COM3		0xb0000e00
>> +#define CONFIG_CONS_INDEX		3
>> +
>> +#endif
>> +
>> +/* UART */
>> +#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200, \
>> +					230400, 460800, 921600 }
>> +
>> +/* 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 */
>> +
>> +#endif //__VOCORE2_CONFIG_H__
Many thanks
Mauro

[PATCH v5] Add support for SoM "VoCore2".

[Mauro Condarelli]

Hi Weijie,

On 2/13/20 10:09 AM, Mauro Condarelli wrote:
>>> +};
>>> diff --git a/arch/mips/mach-mtmips/Kconfig b/arch/mips/mach-mtmips/Kconfig
>>> index bcd635f438..489e466daf 100644
>>> --- a/arch/mips/mach-mtmips/Kconfig
>>> +++ b/arch/mips/mach-mtmips/Kconfig
>>> @@ -83,6 +83,13 @@ config BOARD_MT7628_RFB
>>>  	  SPI-NOR flash, 1 built-in switch with 5 ports, 1 UART, 1 USB host,
>>>  	  1 SDXC, 1 PCIe socket and JTAG pins.
>>>  
>>> +config BOARD_VOCORE2
>>> +	bool "VoCore2"
>>> +	depends on SOC_MT7628
>>> +	help
>>> +	  VoCore VoCore2 board has a MT7628 SoC with 128 MiB of RAM
>>> +	  and 16 MiB of flash (SPI).
>>> +
>> if CONFIG_SPL_UART2_SPIS_PINMUX is the only uart pinmux used by the
>> board, you can add "select CONFIG_SPL_UART2_SPIS_PINMUX" here.
> I thought about this, but I was unsure.
> Will do in v6.

While testing this I noticed it's possible to select SPL_UART2_SPIS_PINMUX
*without* SPL_SERIAL_SUPPORT, leading to an invalid configuration.

IMHO we should have either a:
? "depends on SPL_SERIAL_SUPPORT"
or (perhaps better) a:
? "select SPL_SERIAL_SUPPORT"
in definition of SPL_UART2_SPIS_PINMUX.

I can provide a separate patch as this is not board-specific, but it seems
to be Your call.

Alternatively I can add "select SPL_SERIAL_SUPPORT" to my board
definition, but this doesn't look right to me.

Please advise.

Many Thanks
Mauro

[PATCH v5] Add support for SoM "VoCore2".

[Stefan]

On 12.02.20 16:30, Mauro Condarelli wrote:
> Small patch series to add support for VoCore/VoCore2 board.
> 
> VoCore is open hardware and runs OpenWrt/LEDE.
> It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
> It will help you to make a smart house, study embedded system
> or even make the tiniest router in the world.
> 
> Details about this SoM can be found at "https://vocore.io/v2.html".
> 
> Signed-off-by: Mauro Condarelli <mc5686@mclink.it>
> ---
> 
> Changes in v5:
> - Removed unneeded (and wrong) UART2 initialization in board.c
> - Added network setup.
> - Removed project-specific code.
> - Move back environment to SPI NOR.
> - Changes to environment default settings.
> - Rebase on current u-boot-mips/testing
> 
> Changes in v4:
> - Reverted some overzealous DTS cleaning.
> - Added support for bootcount
> 
> Changes in v3:
> - based on top of Weijie Gao patchset:
>      "[v3,xx/20]Refactor the architecture parts of mt7628"
> 
> Changes in v2:
> - Removed some dead code
> - Changed Author to my full name (no nick)
> - Removed unwanted fixup to .dts generation (not my call).
> - Fixed commit message
> - Fixed various variables/filenames to include Vendor name
> - Changed Vendor name (Vonger -> Vocore)
> 
>   arch/mips/dts/Makefile               |   1 +
>   arch/mips/dts/mt7628a.dtsi           |   5 ++
>   arch/mips/dts/vocore_vocore2.dts     |  78 ++++++++++++++++++++
>   arch/mips/mach-mtmips/Kconfig        |   8 +++
>   board/vocore/vocore2/Kconfig         |  12 ++++
>   board/vocore/vocore2/Makefile        |   3 +
>   board/vocore/vocore2/board.c         |   6 ++
>   configs/vocore2_defconfig            | 103 ++++++++++++++++++++++++++
>   configs/vocore2_defconfig_ENV_IN_FAT | 104 +++++++++++++++++++++++++++
>   include/configs/vocore2.h            |  61 ++++++++++++++++
>   10 files changed, 381 insertions(+)
>   create mode 100644 arch/mips/dts/vocore_vocore2.dts
>   create mode 100644 board/vocore/vocore2/Kconfig
>   create mode 100644 board/vocore/vocore2/Makefile
>   create mode 100644 board/vocore/vocore2/board.c
>   create mode 100644 configs/vocore2_defconfig
>   create mode 100644 configs/vocore2_defconfig_ENV_IN_FAT
>   create mode 100644 include/configs/vocore2.h

Apart from the other comments, the MAINTAINERS file is missing. Please
add it in the next patch version.

Thanks,
Stefan

[PATCH v5] Add support for SoM "VoCore2".

[Mauro Condarelli]

Thanks Stefan.

On 2/13/20 7:50 AM, Stefan wrote:
> On 12.02.20 16:30, Mauro Condarelli wrote:
>> Small patch series to add support for VoCore/VoCore2 board.
>>
>> VoCore is open hardware and runs OpenWrt/LEDE.
>> It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
>> It will help you to make a smart house, study embedded system
>> or even make the tiniest router in the world.
>>
>> Details about this SoM can be found at "https://vocore.io/v2.html".
>>
>> Signed-off-by: Mauro Condarelli <mc5686@mclink.it>
>> ---
>>
>> Changes in v5:
>> - Removed unneeded (and wrong) UART2 initialization in board.c
>> - Added network setup.
>> - Removed project-specific code.
>> - Move back environment to SPI NOR.
>> - Changes to environment default settings.
>> - Rebase on current u-boot-mips/testing
>>
>> Changes in v4:
>> - Reverted some overzealous DTS cleaning.
>> - Added support for bootcount
>>
>> Changes in v3:
>> - based on top of Weijie Gao patchset:
>> ???? "[v3,xx/20]Refactor the architecture parts of mt7628"
>>
>> Changes in v2:
>> - Removed some dead code
>> - Changed Author to my full name (no nick)
>> - Removed unwanted fixup to .dts generation (not my call).
>> - Fixed commit message
>> - Fixed various variables/filenames to include Vendor name
>> - Changed Vendor name (Vonger -> Vocore)
>>
>> ? arch/mips/dts/Makefile?????????????? |?? 1 +
>> ? arch/mips/dts/mt7628a.dtsi?????????? |?? 5 ++
>> ? arch/mips/dts/vocore_vocore2.dts???? |? 78 ++++++++++++++++++++
>> ? arch/mips/mach-mtmips/Kconfig??????? |?? 8 +++
>> ? board/vocore/vocore2/Kconfig???????? |? 12 ++++
>> ? board/vocore/vocore2/Makefile??????? |?? 3 +
>> ? board/vocore/vocore2/board.c???????? |?? 6 ++
>> ? configs/vocore2_defconfig??????????? | 103 ++++++++++++++++++++++++++
>> ? configs/vocore2_defconfig_ENV_IN_FAT | 104 +++++++++++++++++++++++++++
>> ? include/configs/vocore2.h??????????? |? 61 ++++++++++++++++
>> ? 10 files changed, 381 insertions(+)
>> ? create mode 100644 arch/mips/dts/vocore_vocore2.dts
>> ? create mode 100644 board/vocore/vocore2/Kconfig
>> ? create mode 100644 board/vocore/vocore2/Makefile
>> ? create mode 100644 board/vocore/vocore2/board.c
>> ? create mode 100644 configs/vocore2_defconfig
>> ? create mode 100644 configs/vocore2_defconfig_ENV_IN_FAT
>> ? create mode 100644 include/configs/vocore2.h
>
> Apart from the other comments, the MAINTAINERS file is missing. Please
> add it in the next patch version.
Yes, I know.
Also patman was complaining.
I perused MAINTAINERS and it didn't look like specific board
maintainers are in.
I have no problems adding me to the list, but I'm unsure I have
the privilege and it's unclear where I should add myself.

Please advise.

>
> Thanks,
> Stefan
Thanks in Advance
Mauro

[PATCH v5] Add support for SoM "VoCore2".

[Stefan]

On 13.02.20 10:18, Mauro Condarelli wrote:
> Thanks Stefan.
> 
> On 2/13/20 7:50 AM, Stefan wrote:
>> On 12.02.20 16:30, Mauro Condarelli wrote:
>>> Small patch series to add support for VoCore/VoCore2 board.
>>>
>>> VoCore is open hardware and runs OpenWrt/LEDE.
>>> It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
>>> It will help you to make a smart house, study embedded system
>>> or even make the tiniest router in the world.
>>>
>>> Details about this SoM can be found at "https://vocore.io/v2.html".
>>>
>>> Signed-off-by: Mauro Condarelli <mc5686@mclink.it>
>>> ---
>>>
>>> Changes in v5:
>>> - Removed unneeded (and wrong) UART2 initialization in board.c
>>> - Added network setup.
>>> - Removed project-specific code.
>>> - Move back environment to SPI NOR.
>>> - Changes to environment default settings.
>>> - Rebase on current u-boot-mips/testing
>>>
>>> Changes in v4:
>>> - Reverted some overzealous DTS cleaning.
>>> - Added support for bootcount
>>>
>>> Changes in v3:
>>> - based on top of Weijie Gao patchset:
>>>  ???? "[v3,xx/20]Refactor the architecture parts of mt7628"
>>>
>>> Changes in v2:
>>> - Removed some dead code
>>> - Changed Author to my full name (no nick)
>>> - Removed unwanted fixup to .dts generation (not my call).
>>> - Fixed commit message
>>> - Fixed various variables/filenames to include Vendor name
>>> - Changed Vendor name (Vonger -> Vocore)
>>>
>>>  ? arch/mips/dts/Makefile?????????????? |?? 1 +
>>>  ? arch/mips/dts/mt7628a.dtsi?????????? |?? 5 ++
>>>  ? arch/mips/dts/vocore_vocore2.dts???? |? 78 ++++++++++++++++++++
>>>  ? arch/mips/mach-mtmips/Kconfig??????? |?? 8 +++
>>>  ? board/vocore/vocore2/Kconfig???????? |? 12 ++++
>>>  ? board/vocore/vocore2/Makefile??????? |?? 3 +
>>>  ? board/vocore/vocore2/board.c???????? |?? 6 ++
>>>  ? configs/vocore2_defconfig??????????? | 103 ++++++++++++++++++++++++++
>>>  ? configs/vocore2_defconfig_ENV_IN_FAT | 104 +++++++++++++++++++++++++++
>>>  ? include/configs/vocore2.h??????????? |? 61 ++++++++++++++++
>>>  ? 10 files changed, 381 insertions(+)
>>>  ? create mode 100644 arch/mips/dts/vocore_vocore2.dts
>>>  ? create mode 100644 board/vocore/vocore2/Kconfig
>>>  ? create mode 100644 board/vocore/vocore2/Makefile
>>>  ? create mode 100644 board/vocore/vocore2/board.c
>>>  ? create mode 100644 configs/vocore2_defconfig
>>>  ? create mode 100644 configs/vocore2_defconfig_ENV_IN_FAT
>>>  ? create mode 100644 include/configs/vocore2.h
>>
>> Apart from the other comments, the MAINTAINERS file is missing. Please
>> add it in the next patch version.
> Yes, I know.
> Also patman was complaining.
> I perused MAINTAINERS and it didn't look like specific board
> maintainers are in.
> I have no problems adding me to the list, but I'm unsure I have
> the privilege and it's unclear where I should add myself.

I was not referring to the global MAINTAINERS file but the one located
in the board directory. Please see:

board/gardena/smart-gateway-mt7688/MAINTAINERS

Thanks,
Stefan

[PATCH v5] Add support for SoM "VoCore2".

[Mauro Condarelli]

Thanks Stefan.

On 2/13/20 10:21 AM, Stefan wrote:
> On 13.02.20 10:18, Mauro Condarelli wrote:
>> Thanks Stefan.
>>
>> On 2/13/20 7:50 AM, Stefan wrote:
>>> On 12.02.20 16:30, Mauro Condarelli wrote:
>>>> Small patch series to add support for VoCore/VoCore2 board.
>>>>
>>>> VoCore is open hardware and runs OpenWrt/LEDE.
>>>> It has WIFI, USB, UART, 20+ GPIOs but is only one inch square.
>>>> It will help you to make a smart house, study embedded system
>>>> or even make the tiniest router in the world.
>>>>
>>>> Details about this SoM can be found at "https://vocore.io/v2.html".
>>>>
>>>> Signed-off-by: Mauro Condarelli <mc5686@mclink.it>
>>>> ---
>>>>
>>>> Changes in v5:
>>>> - Removed unneeded (and wrong) UART2 initialization in board.c
>>>> - Added network setup.
>>>> - Removed project-specific code.
>>>> - Move back environment to SPI NOR.
>>>> - Changes to environment default settings.
>>>> - Rebase on current u-boot-mips/testing
>>>>
>>>> Changes in v4:
>>>> - Reverted some overzealous DTS cleaning.
>>>> - Added support for bootcount
>>>>
>>>> Changes in v3:
>>>> - based on top of Weijie Gao patchset:
>>>> ????? "[v3,xx/20]Refactor the architecture parts of mt7628"
>>>>
>>>> Changes in v2:
>>>> - Removed some dead code
>>>> - Changed Author to my full name (no nick)
>>>> - Removed unwanted fixup to .dts generation (not my call).
>>>> - Fixed commit message
>>>> - Fixed various variables/filenames to include Vendor name
>>>> - Changed Vendor name (Vonger -> Vocore)
>>>>
>>>> ?? arch/mips/dts/Makefile?????????????? |?? 1 +
>>>> ?? arch/mips/dts/mt7628a.dtsi?????????? |?? 5 ++
>>>> ?? arch/mips/dts/vocore_vocore2.dts???? |? 78 ++++++++++++++++++++
>>>> ?? arch/mips/mach-mtmips/Kconfig??????? |?? 8 +++
>>>> ?? board/vocore/vocore2/Kconfig???????? |? 12 ++++
>>>> ?? board/vocore/vocore2/Makefile??????? |?? 3 +
>>>> ?? board/vocore/vocore2/board.c???????? |?? 6 ++
>>>> ?? configs/vocore2_defconfig??????????? | 103
>>>> ++++++++++++++++++++++++++
>>>> ?? configs/vocore2_defconfig_ENV_IN_FAT | 104
>>>> +++++++++++++++++++++++++++
>>>> ?? include/configs/vocore2.h??????????? |? 61 ++++++++++++++++
>>>> ?? 10 files changed, 381 insertions(+)
>>>> ?? create mode 100644 arch/mips/dts/vocore_vocore2.dts
>>>> ?? create mode 100644 board/vocore/vocore2/Kconfig
>>>> ?? create mode 100644 board/vocore/vocore2/Makefile
>>>> ?? create mode 100644 board/vocore/vocore2/board.c
>>>> ?? create mode 100644 configs/vocore2_defconfig
>>>> ?? create mode 100644 configs/vocore2_defconfig_ENV_IN_FAT
>>>> ?? create mode 100644 include/configs/vocore2.h
>>>
>>> Apart from the other comments, the MAINTAINERS file is missing. Please
>>> add it in the next patch version.
>> Yes, I know.
>> Also patman was complaining.
>> I perused MAINTAINERS and it didn't look like specific board
>> maintainers are in.
>> I have no problems adding me to the list, but I'm unsure I have
>> the privilege and it's unclear where I should add myself.
>
> I was not referring to the global MAINTAINERS file but the one located
> in the board directory. Please see:
>
> board/gardena/smart-gateway-mt7688/MAINTAINERS
Oops!
I completely overlooked that.
Done.


> Thanks,
> Stefan

Many Thanks
Mauro