board: samsung: add support for Galaxy A series of 2017 (a5y17lte)

Samsung Galaxy A3, A5, A7 (2017) - middle class Samsung smartphones.
U-boot can be used as chain-loaded bootloader to gain control
on booting vanilla linux(and possibly others) kernels

Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/configs/a7y17lte_defconfig b/configs/a7y17lte_defconfig
new file mode 100644
index 0000000..f544f62
--- /dev/null
+++ b/configs/a7y17lte_defconfig
@@ -0,0 +1,24 @@
+CONFIG_ARM=y
+CONFIG_ARCH_EXYNOS=y
+CONFIG_ARCH_EXYNOS7=y
+CONFIG_S5P=y
+CONFIG_TARGET_A7Y17LTE=y
+# This option is a number of 256MB DRAM banks, i.e. (ram size) / 256MB.
+# Used in samsung common board dram_init function.
+CONFIG_NR_DRAM_BANKS=12
+CONFIG_SYS_CONFIG_NAME="exynos78x0-common"
+CONFIG_DEFAULT_DEVICE_TREE="exynos78x0-axy17lte"
+CONFIG_SYS_TEXT_BASE=0x40001000
+CONFIG_SYS_LOAD_ADDR=0x40001000
+CONFIG_HUSH_PARSER=y
+CONFIG_FIT=y
+CONFIG_BOARD_EARLY_INIT_F=n
+CONFIG_SKIP_LOWLEVEL_INIT=y
+CONFIG_CMD_GPIO=y
+CONFIG_DISPLAY_CPUINFO=n
+CONFIG_CMD_I2C=y
+CONFIG_DM_I2C_GPIO=y
+CONFIG_PINCTRL_EXYNOS78x0=y
+CONFIG_PINCTRL_EXYNOS=y
+# CONFIG_DEBUG_UART_S5P=y
+# CONFIG_DEBUG_UART_BASE=0x13820000
\ No newline at end of file