[U-Boot] [PATCH 8/8] arm: ls1021atwr: Enable driver model lpuart serial driver

[Bin Meng]

Convert ls1021atwr_nor_lpuart to driver model support. As a start,
enable lpuart serial port driver.

Signed-off-by: Bin Meng <bmeng.cn at gmail.com>

---

 arch/arm/dts/ls1021a-twr.dts            | 4 ++++
 configs/ls1021atwr_nor_lpuart_defconfig | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/arch/arm/dts/ls1021a-twr.dts b/arch/arm/dts/ls1021a-twr.dts
index aead13f..deabb12 100644
--- a/arch/arm/dts/ls1021a-twr.dts
+++ b/arch/arm/dts/ls1021a-twr.dts
@@ -21,6 +21,10 @@
 	};
 
 	chosen {
+		/*
+		 * With ls1021atwr_nor_lpuart_defconfig configuration,
+		 * this needs to be changed to &lpuart0.
+		 */
 		stdout-path = &uart0;
 	};
 };
diff --git a/configs/ls1021atwr_nor_lpuart_defconfig b/configs/ls1021atwr_nor_lpuart_defconfig
index 58cd61f..5346359 100644
--- a/configs/ls1021atwr_nor_lpuart_defconfig
+++ b/configs/ls1021atwr_nor_lpuart_defconfig
@@ -1,7 +1,11 @@
 CONFIG_ARM=y
 CONFIG_TARGET_LS1021ATWR=y
+CONFIG_DM_SERIAL=y
+CONFIG_DEFAULT_DEVICE_TREE="ls1021a-twr"
 CONFIG_SYS_EXTRA_OPTIONS="LPUART"
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_OF_CONTROL=y
+CONFIG_DM=y
 CONFIG_NETDEVICES=y
 CONFIG_E1000=y
 CONFIG_FSL_LPUART=y
-- 
1.8.2.1