@@ -1760,6 +1760,19 @@ config ARCH_UNIPHIER
Support for UniPhier SoC family developed by Socionext Inc.
(formerly, System LSI Business Division of Panasonic Corporation)
+config ARCH_SYNQUACER
+ bool "Socionext SynQuacer SoCs"
+ select ARM64
+ select DM
+ select GIC_V3
+ select PSCI_RESET
+ select SYSRESET
+ select SYSRESET_PSCI
+ select OF_CONTROL
+ help
+ Support for SynQuacer SoC family developed by Socionext Inc.
+ This SoC is used on 96boards EE DeveloperBox.
+
config ARCH_STM32
bool "Support STMicroelectronics STM32 MCU with cortex M"
select CPU_V7M
@@ -2102,6 +2115,7 @@ source "board/hisilicon/poplar/Kconfig"
source "board/isee/igep003x/Kconfig"
source "board/kontron/sl28/Kconfig"
source "board/myir/mys_6ulx/Kconfig"
+source "board/socionext/developerbox/Kconfig"
source "board/spear/spear300/Kconfig"
source "board/spear/spear310/Kconfig"
source "board/spear/spear320/Kconfig"
new file mode 100644
@@ -0,0 +1,36 @@
+if ARCH_SYNQUACER
+
+choice
+ prompt "SC2A11 Cortex-A53 MPCore 24cores"
+ optional
+
+config TARGET_DEVELOPERBOX
+ bool "Socionext DeveloperBox"
+ select PCI
+ select DM_PCI
+ select PCIE_ECAM_SYNQUACER
+ select SYS_DISABLE_DCACHE_OPS
+ select OF_BOARD_SETUP
+ help
+ Choose this option if you build the U-Boot for the DeveloperBox
+ 96boards Enterprise Edition.
+ This board will booted from SCP firmware and it enables SMMU, thus
+ the dcache is updated automatically when DMA operation is executed.
+endchoice
+
+config SYS_SOC
+ default "sc2a11"
+
+if TARGET_DEVELOPERBOX
+
+config SYS_BOARD
+ default "developerbox"
+
+config SYS_VENDOR
+ default "socionext"
+
+config SYS_CONFIG_NAME
+ default "synquacer"
+
+endif
+endif
new file mode 100644
@@ -0,0 +1,14 @@
+DEVELOPER BOX
+M: Masami Hiramatsu <masami.hiramatsu@linaro.org>
+M: Jassi Brar <jaswinder.singh@linaro.org>
+S: Maintained
+F: arch/arm/dts/synquacer-*
+F: board/socionext/developerbox/*
+F: configs/synquacer_developerbox_defconfig
+F: drivers/i2c/synquacer_i2c.c
+F: drivers/mmc/f_sdh30.c
+F: drivers/net/sni_netsec.c
+F: drivers/pci/pcie_ecam_synquacer.c
+F: drivers/spi/spi-synquacer.c
+F: include/configs/synquacer.h
+F: doc/board/socionext/developerbox.rst
new file mode 100644
@@ -0,0 +1,9 @@
+#
+# Author: Masami Hiramatsu <masami.hiramatsu@linaro.org>
+#
+# Copyright (C) 2021 Linaro Ltd.
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y := developerbox.o
new file mode 100644
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * u-boot/board/socionext/developerbox/developerbox.c
+ *
+ * Copyright (C) 2016-2017 Socionext Inc.
+ * Copyright (C) 2021 Linaro Ltd.
+ */
+#include <asm/types.h>
+#include <asm/armv8/mmu.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <common.h>
+#include <env_internal.h>
+#include <fdt_support.h>
+#include <log.h>
+
+static struct mm_region sc2a11_mem_map[] = {
+ {
+ .virt = 0x0UL,
+ .phys = 0x0UL,
+ .size = 0x80000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_OUTER_SHARE
+ }, {
+ /* 1st DDR block */
+ .virt = 0x80000000UL,
+ .phys = 0x80000000UL,
+ .size = PHYS_SDRAM_SIZE,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_OUTER_SHARE
+ }, {
+ /* 2nd DDR place holder */
+ 0,
+ }, {
+ /* 3rd DDR place holder */
+ 0,
+ }, {
+ /* List terminator */
+ 0,
+ }
+};
+
+struct mm_region *mem_map = sc2a11_mem_map;
+
+#define DDR_REGION_INDEX(i) (1 + (i))
+#define MAX_DDR_REGIONS 3
+
+struct draminfo_entry {
+ u64 base;
+ u64 size;
+};
+
+struct draminfo {
+ u32 nr_regions;
+ u32 reserved;
+ struct draminfo_entry entry[3];
+};
+
+struct draminfo *synquacer_draminfo = (void *)SQ_DRAMINFO_BASE;
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define LOAD_OFFSET 0x100
+
+/*
+ * Miscellaneous platform dependent initialisations
+ */
+int board_init(void)
+{
+ gd->bd->bi_boot_params = CONFIG_SYS_LOAD_ADDR + LOAD_OFFSET;
+
+ gd->env_addr = (ulong)&default_environment[0];
+
+ return 0;
+}
+
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+ /* Remove SPI NOR and I2C0 for making DT compatible with EDK2 */
+ fdt_del_node_and_alias(blob, "spi_nor");
+ fdt_del_node_and_alias(blob, "i2c0");
+
+ return 0;
+}
+
+/*
+ * DRAM configuration
+ */
+
+int dram_init(void)
+{
+ struct draminfo_entry *ent = synquacer_draminfo->entry;
+ struct mm_region *mr;
+ int i, ri;
+
+ if (synquacer_draminfo->nr_regions < 1) {
+ log_err("Failed to get correct DRAM information\n");
+ return -1;
+ }
+
+ /*
+ * U-Boot RAM size must be under the first DRAM region so that it doesn't
+ * access secure memory which is at the end of the first DRAM region.
+ */
+ gd->ram_size = ent[0].size;
+
+ /* Update memory region maps */
+ for (i = 0; i < synquacer_draminfo->nr_regions; i++) {
+ if (i >= MAX_DDR_REGIONS)
+ break;
+
+ ri = DDR_REGION_INDEX(i);
+ mem_map[ri].phys = ent[i].base;
+ mem_map[ri].size = ent[i].size;
+ if (i == 0)
+ continue;
+
+ mr = &mem_map[DDR_REGION_INDEX(0)];
+ mem_map[ri].virt = mr->virt + mr->size;
+ mem_map[ri].attrs = mr->attrs;
+ }
+
+ return 0;
+}
+
+int dram_init_banksize(void)
+{
+ struct draminfo_entry *ent = synquacer_draminfo->entry;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(gd->bd->bi_dram); i++) {
+ if (i < synquacer_draminfo->nr_regions) {
+ debug("%s: dram[%d] = %llx@%llx\n", __func__, i, ent[i].size, ent[i].base);
+ gd->bd->bi_dram[i].start = ent[i].base;
+ gd->bd->bi_dram[i].size = ent[i].size;
+ }
+ }
+
+ return 0;
+}
+
+int print_cpuinfo(void)
+{
+ printf("CPU: SC2A11:Cortex-A53 MPCore 24cores\n");
+ return 0;
+}
new file mode 100644
@@ -0,0 +1,114 @@
+CONFIG_ARM=y
+CONFIG_ARCH_SYNQUACER=y
+CONFIG_SYS_TEXT_BASE=0x08200000
+CONFIG_ENV_SIZE=0x30000
+CONFIG_ENV_OFFSET=0x300000
+CONFIG_DEBUG_UART_BASE=0x2a400000
+CONFIG_DEBUG_UART_CLOCK=62500000
+CONFIG_ENV_SECT_SIZE=0x10000
+CONFIG_DM_GPIO=y
+CONFIG_TARGET_DEVELOPERBOX=y
+CONFIG_DEFAULT_DEVICE_TREE="synquacer-sc2a11-developerbox"
+CONFIG_AHCI=y
+CONFIG_BOOTSTAGE_STASH_SIZE=4096
+CONFIG_BOOTM_EFI=y
+CONFIG_LOGLEVEL=9
+CONFIG_LOG_MAX_LEVEL=7
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_BOOTEFI=y
+CONFIG_CMD_NVEDIT_EFI=y
+CONFIG_CMD_EFIDEBUG=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_IMLS=y
+CONFIG_CMD_NVEDIT_INFO=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_NET=y
+CONFIG_CMD_BOOTP=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_DATE=y
+CONFIG_CMD_RTC=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_MTD=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_POWEROFF=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_SATA=y
+CONFIG_CMD_NVME=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTDPARTS_DEFAULT="nor1:448k(BootStrap-BL1),576k(Flash-Writer),512k(SCP-BL2),480k(FIP-TFA),32k(Stg2-Tables),1m@2m(U-Boot),1m@3m(UBoot-Env),2m@5m(Ex-OPTEE)"
+CONFIG_MTDIDS_DEFAULT="nor1=nor1"
+CONFIG_CMD_LOG=y
+CONFIG_PARTITION_TYPE_GUID=y
+CONFIG_EFI_PARTITION=y
+CONFIG_EFI_LOADER=y
+CONFIG_EFI_DEVICE_PATH_TO_TEXT=y
+CONFIG_EFI_UNICODE_COLLATION_PROTOCOL2=y
+CONFIG_EFI_UNICODE_CAPITALIZATION=y
+CONFIG_EFI_HAVE_RUNTIME_RESET=y
+CONFIG_EFI_GET_TIME=y
+CONFIG_EFI_SET_TIME=y
+CONFIG_CMD_EFI_VARIABLE_FILE_STORE=Y
+CONFIG_OF_SEPARATE=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_USE_ENV_SPI_BUS=y
+CONFIG_ENV_SPI_BUS=0
+CONFIG_USE_ENV_SPI_CS=y
+CONFIG_ENV_SPI_CS=0
+CONFIG_PROT_UDP=y
+CONFIG_BAUDRATE=115200
+CONFIG_SPECIFY_CONSOLE_INDEX=y
+CONFIG_CONS_INDEX=0
+CONFIG_DM_SERIAL=y
+CONFIG_PL01X_SERIAL=y
+CONFIG_SATA=y
+CONFIG_NVME=y
+CONFIG_SCSI_AHCI=y
+CONFIG_AHCI_PCI=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_SYNQUACER=y
+CONFIG_DM_MMC=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_F_SDH30=y
+CONFIG_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_FLASH_CFI_DRIVER=y
+CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
+CONFIG_FLASH_CFI_MTD=y
+CONFIG_SYS_FLASH_CFI=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SF_DEFAULT_SPEED=31250000
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_STMICRO=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_PHYLIB=y
+CONFIG_PHYLIB_10G=y
+CONFIG_NET=y
+CONFIG_NETDEVICES=y
+CONFIG_SNI_NETSEC=y
+CONFIG_DM_ETH=y
+CONFIG_DM_MDIO=y
+CONFIG_PHY_GIGE=y
+CONFIG_RGMII=y
+CONFIG_MII=y
+CONFIG_DM_RTC=y
+CONFIG_RTC_PCF8563=y
+CONFIG_SCSI=y
+CONFIG_DM_SCSI=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_SYNQUACER_SPI=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_XHCI_PCI=y
+CONFIG_USB_STORAGE=y
@@ -21,6 +21,7 @@ Board-specific doc
rockchip/index
sifive/index
sipeed/index
+ socionext/index
st/index
tbs/index
toradex/index
new file mode 100644
@@ -0,0 +1,87 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Introduction
+============
+
+DeveloperBox is a certified 96boards Enterprise Edition board. The board/SoC has: -
+
+* Socionext SC2A11 24-cores ARM Cortex-A53 on tbe Mini-ATX form factor motherboard
+* 4 DIMM slots (4GB DDR4-2400 UDIMM shipped by default)
+* 1 4xPCIe Gen2 slot and 2 1xPCIe Gen2 slots
+ (1x slots are connected via PCIe bridge chip)
+* 4 USB-3.0 ports
+* 2 SATA ports
+* 1 GbE network port
+* 1 USB-UART serial port (micro USB)
+* 64MB SPI NOR Flash
+* 8GB eMMC Flash Storage
+* 96boards LS connector
+
+The DeveloperBox schematic can be found here: -
+https://www.96boards.org/documentation/enterprise/developerbox/hardware-docs/mzsc2am_v03_20180115_a.pdf
+
+And the other documents can be found here: -
+https://www.96boards.org/documentation/enterprise/developerbox/
+
+
+Currently, the U-Boot port supports: -
+
+* USB
+* eMMC
+* SPI-NOR
+* SATA
+* GbE
+
+The DeveloperBox boots the TF-A and EDK2 as a main bootloader by default.
+The DeveloperBox U-Boot port will replace the EDK2 and boot from TF-A as
+BL33, but no need to combine with it.
+
+Compile from source
+===================
+
+You can build U-Boot without any additinal source code.::
+
+ cd u-boot
+ export ARCH=arm64
+ export CROSS_COMPILE=aarch64-linux-gnu-
+ make SynQuacer_defconfig
+ make -j `noproc`
+
+Then, expand the binary to 1MB for preparing flash.::
+
+ cp u-boot.bin SPI_NOR_UBOOT.fd
+ truncate -s 1M SPI_NOR_UBOOT.fd
+
+Installation
+============
+
+You can install the SNI_NOR_UBOOT.fd via NOR flash writer.
+
+Flashing the U-Boot image on DeveloperBox requires a 96boards UART mezzanine or other mezzanine which can connect to LS-UART0 port.
+Connect USB cable from host to the LS-UART0 and set DSW2-7 to ON, and turn the board on again. The flash writer program will be started automatically; don’t forget to turn the DSW2-7 off again after flashing.
+
+*!!CAUTION!! If you failed to write the U-Boot image on wrong address, the board can be bricked. See below page if you need to recover the bricked board. See the following page for more detail*
+
+https://www.96boards.org/documentation/enterprise/developerbox/installation/board-recovery.md.html
+
+When the serial flasher is running correctly is will show the following boot messages shown via LS-UART0::
+
+
+ /*------------------------------------------*/
+ /* SC2A11 "SynQuacer" series Flash writer */
+ /* */
+ /* Version: cd254ac */
+ /* Build: 12/15/17 11:25:45 */
+ /*------------------------------------------*/
+
+ Command Input >
+
+Once the flasher tool is running we are ready flash the UEFI image::
+
+ flash rawwrite 200000 100000
+ >> Send SPI_NOR_UBOOT.fd via XMODEM (Control-A S in minicom) <<
+
+*!!NOTE!! The flasher command parameter is different from the command for board recovery. U-Boot uses the offset 200000 (2-five-0, 2M in hex) and the size 100000 (1-five-0, 1M in hex).*
+
+After transferring the SPI_NOR_UBOOT.fd, turn off the DSW2-7 and reset the board.
+
new file mode 100644
@@ -0,0 +1,9 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Socionext
+=========
+
+.. toctree::
+ :maxdepth: 2
+
+ developerbox
new file mode 100644
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2016-2017 Socionext Inc.
+ */
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/* Timers for fasp(TIMCLK) */
+#define CONFIG_SYS_HZ 1000 /* 1 msec */
+#define CONFIG_SYS_TIMERBASE 0x31080000 /* AP Timer 1 (ARM-SP804) */
+
+/*
+ * SDRAM (for initialize)
+ */
+#define CONFIG_SYS_SDRAM_BASE (0x80000000) /* Start address of DDR3 */
+#define PHYS_SDRAM_SIZE (0x7c000000) /* Default size (2GB - Secure memory) */
+
+#define CONFIG_VERY_BIG_RAM /* SynQuacer supports up to 64GB */
+#define CONFIG_MAX_MEM_MAPPED PHYS_SDRAM_SIZE
+
+#define SQ_DRAMINFO_BASE (0x2e00ffc0) /* DRAM info from TF-A */
+
+/*
+ * Boot info
+ */
+#define CONFIG_SYS_INIT_SP_ADDR (0xe0000000) /* stack of init proccess */
+#define CONFIG_SYS_MALLOC_LEN (0x01000000) /* 16Mbyte size of malloc() */
+#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_SDRAM_BASE /* default kernel load address */
+
+/*
+ * Hardware drivers support
+ */
+
+/* RTC */
+#define CONFIG_SYS_I2C_RTC_ADDR 0x51
+
+/* Serial (pl011) */
+#define UART_CLK (62500000)
+#define CONFIG_SERIAL_MULTI
+#define CONFIG_PL011_SERIAL
+#define CONFIG_PL011_CLOCK UART_CLK
+#define CONFIG_PL01x_PORTS {(void *)(0x2a400000)}
+
+#define CONFIG_ENV_OVERWRITE /* ethaddr can be reprogrammed */
+
+/* Support MTD */
+#define CONFIG_SYS_MAX_FLASH_BANKS 1
+#define CONFIG_SYS_FLASH_BASE (0x08000000)
+#define CONFIG_SYS_FLASH_BANKS_LIST {CONFIG_SYS_FLASH_BASE}
+
+#define CONFIG_SYS_MEMTEST_START (CONFIG_SYS_SDRAM_BASE + (512 * 1024))
+#define CONFIG_SYS_MEMTEST_END (CONFIG_SYS_SDRAM_BASE + PHYS_SDRAM_SIZE)
+
+#define CONFIG_BAUDRATE 115200
+#define CONFIG_SYS_BAUDRATE_TABLE {115200, 19200, 38400, 57600, 9600 }
+
+#define CONFIG_SYS_CBSIZE 1024
+#define CONFIG_SYS_MAXARGS 128
+#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+
+/* Since U-Boot 64bit PCIe support is limited, disable 64bit MMIO support */
+/* #define CONFIG_SYS_PCI_64BIT 1 */
+
+/* Distro boot settings */
+#ifndef CONFIG_SPL_BUILD
+#ifdef CONFIG_CMD_USB
+#define BOOT_TARGET_DEVICE_USB(func) func(USB, usb, 0)
+#else
+#define BOOT_TARGET_DEVICE_USB(func)
+#endif
+
+#ifdef CONFIG_CMD_MMC
+#define BOOT_TARGET_DEVICE_MMC(func) func(MMC, mmc, 0)
+#else
+#define BOOT_TARGET_DEVICE_MMC(func)
+#endif
+
+#ifdef CONFIG_CMD_NVME
+#define BOOT_TARGET_DEVICE_NVME(func) func(NVME, nvme, 0)
+#else
+#define BOOT_TARGET_DEVICE_NVME(func)
+#endif
+
+#ifdef CONFIG_CMD_SCSI
+#define BOOT_TARGET_DEVICE_SCSI(func) func(SCSI, scsi, 0) func(SCSI, scsi, 1)
+#else
+#define BOOT_TARGET_DEVICE_SCSI(func)
+#endif
+
+#define BOOT_TARGET_DEVICES(func) \
+ BOOT_TARGET_DEVICE_USB(func) \
+ BOOT_TARGET_DEVICE_MMC(func) \
+ BOOT_TARGET_DEVICE_SCSI(func) \
+ BOOT_TARGET_DEVICE_NVME(func) \
+
+#include <config_distro_bootcmd.h>
+#else /* CONFIG_SPL_BUILD */
+#define BOOTENV
+#endif
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ "fdt_addr_r=0x9fe00000\0" \
+ "kernel_addr_r=0x90000000\0" \
+ "ramdisk_addr_r=0xa0000000\0" \
+ "scriptaddr=0x88000000\0" \
+ "pxefile_addr_r=0x88100000\0" \
+ BOOTENV
+
+#endif /* __CONFIG_H */
Add the DeveloperBox 96boards EE support. This board is also known as Socionext SynQuacer E-Series. It contians one "SC2A11" SoC, which has 24-cores of arm Cortex-A53, and 4 DDR3 slots, 3 PCIe slots (1 4x port and 2 1x ports which are expanded via PCIe bridge chip), 2 USB 3.0 ports and 2 USB 2.0 ports, 2 SATA ports and 1 GbE, 64MB NOR flash and 8GB eMMC on standard MicroATX Form Factor. For more information, see this page; https://www.96boards.org/product/developerbox/ Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org> --- Changes in v4: - Add I2C and RTC configuration. - Enable RTC and Date command. - Remove I2C0 node before booting linux to hide it same as EDK2 does. - Add some configurations to make it EBBR compliant. Changes in v3: - Enable CONFIG_MMC_SDHCI_F_SDH30. - Enable CONFIG_CMD_GENERIC (fstype command) for distro boot. - Remove unneeded CONFIG_ONLY_GENERIC_GPIO. Changes in v2: - Do not include arch/gpio.h and remove arch-sc2a11/gpio.h. - Remove non-UEFI boot commands. - Use Distro boot. - Remove NOR-connected SPI node by path instead of alias. - Rename configs/SynQuacer_defconfig to configs/synquacer_developerbox_defconfig. - Rename include/configs/SynQuacer.h to include/configs/synquacer.h. - Move README under doc/board/socionext/ and make it .rst text. --- arch/arm/Kconfig | 14 +++ board/socionext/developerbox/Kconfig | 36 +++++++ board/socionext/developerbox/MAINTAINERS | 14 +++ board/socionext/developerbox/Makefile | 9 ++ board/socionext/developerbox/developerbox.c | 146 +++++++++++++++++++++++++++ configs/synquacer_developerbox_defconfig | 114 +++++++++++++++++++++ doc/board/index.rst | 1 doc/board/socionext/developerbox.rst | 87 ++++++++++++++++ doc/board/socionext/index.rst | 9 ++ include/configs/synquacer.h | 109 ++++++++++++++++++++ 10 files changed, 539 insertions(+) create mode 100644 board/socionext/developerbox/Kconfig create mode 100644 board/socionext/developerbox/MAINTAINERS create mode 100644 board/socionext/developerbox/Makefile create mode 100644 board/socionext/developerbox/developerbox.c create mode 100644 configs/synquacer_developerbox_defconfig create mode 100644 doc/board/socionext/developerbox.rst create mode 100644 doc/board/socionext/index.rst create mode 100644 include/configs/synquacer.h