The TestBox board is an open hardware enhancement for the Lamobo R1 router board. The Testbox board is used in the CI-RT project to manage devices under test (https://ci-rt.linutronix.de).
The hardware project is located at https://github.com/ci-rt/testbox-shield Check if the hardware is present and use the appropriate device tree file. Signed-off-by: Benedikt Spranger <b.spran...@linutronix.de> Reviewed-by: Kurt Kanzenbach <k...@linutronix.de> --- arch/arm/mach-sunxi/Kconfig | 15 ++++++++++++ board/sunxi/board.c | 47 +++++++++++++++++++++++++++++++++++++ configs/Lamobo_R1_defconfig | 1 + 3 files changed, 63 insertions(+) diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig index be0822bfb7..970fa0fae2 100644 --- a/arch/arm/mach-sunxi/Kconfig +++ b/arch/arm/mach-sunxi/Kconfig @@ -1010,4 +1010,19 @@ config PINE64_DT_SELECTION option, the device tree selection code specific to Pine64 which utilizes the DRAM size will be enabled. +config LXTESTBOX + bool "Support for LX TestBox" + depends on MACH_SUN7I + select I2C2_ENABLE + select DM_I2C + help + The LX TestBox board is an open hardware enhancement for the + Lamobo R1 router board. The TestBox board is used in the CI-RT + project to manage devices under test (https://ci-rt.linutronix.de). + +config LXTESTBOX_DEVICE_TREE + string "LX TestBox default device tree" + default "sun7i-a20-linutronix-testbox-v2.dtb" + help + LX TestBox default device tree name. endif diff --git a/board/sunxi/board.c b/board/sunxi/board.c index f32e8f582f..4645798bcd 100644 --- a/board/sunxi/board.c +++ b/board/sunxi/board.c @@ -43,6 +43,17 @@ #include <spl.h> #include <sy8106a.h> #include <asm/setup.h> +#include <dm/uclass.h> +#include <i2c.h> + +struct lxtestbox_eeprom { + u32 magic; + u8 version; + char serial[7]; + u32 crc; +} __packed; + +#define LXTESTBOX_I2C_EEPROM_MAGIC 0x6274584c #if defined CONFIG_VIDEO_LCD_PANEL_I2C && !(defined CONFIG_SPL_BUILD) /* So that we can use pin names in Kconfig and sunxi_name_to_gpio() */ @@ -839,6 +850,42 @@ static void setup_environment(const void *fdt) env_set("serial#", serial_string); } } + +#ifdef CONFIG_LXTESTBOX + debug("Check for LX TestBox..."); + if (!strcmp(env_get("fdtfile"), CONFIG_DEFAULT_DEVICE_TREE ".dtb")) { + struct lxtestbox_eeprom moep; + struct udevice *bus, *dev; + int ret; + + ret = uclass_get_device_by_name(UCLASS_I2C, + "i2c@1c2b400", &bus); + if (ret) { + printf("Cannot get I2C bus: %i\n", ret); + return; + } + + ret = i2c_get_chip(bus, 0x50, 1, &dev); + if (ret) { + printf("Cannot get I2C chip: %i\n", ret); + return; + } + + ret = dm_i2c_read(dev, 0, (u8 *)&moep, sizeof(moep)); + if (ret) { + printf("cannot read EEPROM: %i\n", ret); + return; + } + + if (moep.magic != LXTESTBOX_I2C_EEPROM_MAGIC) { + printf("bad EEPROM magic number (%08x, should be %08x)\n", + moep.magic, LXTESTBOX_I2C_EEPROM_MAGIC); + return; + } + debug("found.\n"); + env_set("fdtfile", CONFIG_LXTESTBOX_DEVICE_TREE); + } +#endif } int misc_init_r(void) diff --git a/configs/Lamobo_R1_defconfig b/configs/Lamobo_R1_defconfig index 34db56f79b..d74032e1e5 100644 --- a/configs/Lamobo_R1_defconfig +++ b/configs/Lamobo_R1_defconfig @@ -7,6 +7,7 @@ CONFIG_MACPWR="PH23" CONFIG_MMC0_CD_PIN="PH10" CONFIG_SATAPWR="PB3" CONFIG_GMAC_TX_DELAY=4 +CONFIG_LXTESTBOX=y CONFIG_AHCI=y # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set CONFIG_SPL_I2C_SUPPORT=y -- 2.19.0
