armv8/ls1043aqds: Add lpuart support

Add lpuart support using the driver model.

Signed-off-by: Wenbin Song <wenbin.song@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: York Sun <york.sun@nxp.com>

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index b3b0f4f2318e775a3c6f2510a139350cdc8993c0..4a01bf661415d941ce92b1be1d0c5b53778bdc8a 100644 (file)
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -98,6 +98,7 @@ dtb-$(CONFIG_LS102XA) += ls1021a-qds.dtb \
 dtb-$(CONFIG_FSL_LSCH3) += fsl-ls2080a-qds.dtb \
        fsl-ls2080a-rdb.dtb
 dtb-$(CONFIG_FSL_LSCH2) += fsl-ls1043a-qds-duart.dtb \
+       fsl-ls1043a-qds-lpuart.dtb \
        fsl-ls1043a-rdb.dtb
 
 dtb-$(CONFIG_MACH_SUN4I) += \

diff --git a/arch/arm/dts/fsl-ls1043a-qds-lpuart.dts b/arch/arm/dts/fsl-ls1043a-qds-lpuart.dts
new file mode 100644 (file)
index 0000000..18adb97
--- /dev/null
+++ b/arch/arm/dts/fsl-ls1043a-qds-lpuart.dts
@@ -0,0 +1,16 @@
+/*
+ * Device Tree file for Freescale Layerscape-1043A family SoC.
+ *
+ * Copyright (C) 2015, Freescale Semiconductor
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+/dts-v1/;
+#include "fsl-ls1043a-qds.dtsi"
+
+/ {
+       chosen {
+               stdout-path = &lpuart0;
+       };
+};

diff --git a/arch/arm/dts/fsl-ls1043a-qds.dtsi b/arch/arm/dts/fsl-ls1043a-qds.dtsi
index 6fa16b80b9bfde9136324f10b940ba739e5b9698..b9dad72d45777878c30340f7acd509cabcbb879b 100644 (file)
--- a/arch/arm/dts/fsl-ls1043a-qds.dtsi
+++ b/arch/arm/dts/fsl-ls1043a-qds.dtsi
@@ -121,3 +121,7 @@
 &duart1 {
        status = "okay";
 };
+
+&lpuart0 {
+       status = "okay";
+};

diff --git a/arch/arm/dts/fsl-ls1043a.dtsi b/arch/arm/dts/fsl-ls1043a.dtsi
index 85ea81e2a6896ca1d61f5ab43498b97522915eae..12ea0ab541ff58c62672c586df6bd2981bedc1c6 100644 (file)
--- a/arch/arm/dts/fsl-ls1043a.dtsi
+++ b/arch/arm/dts/fsl-ls1043a.dtsi
@@ -182,5 +182,59 @@
                        interrupts = <0 55 0x4>;
                        clocks = <&clockgen 4 0>;
                };
+
+               lpuart0: serial@2950000 {
+                       compatible = "fsl,ls1021a-lpuart";
+                       reg = <0x0 0x2950000 0x0 0x1000>;
+                       interrupts = <0 48 0x4>;
+                       clocks = <&sysclk>;
+                       clock-names = "ipg";
+                       status = "disabled";
+               };
+
+               lpuart1: serial@2960000 {
+                       compatible = "fsl,ls1021a-lpuart";
+                       reg = <0x0 0x2960000 0x0 0x1000>;
+                       interrupts = <0 49 0x4>;
+                       clocks = <&sysclk>;
+                       clock-names = "ipg";
+                       status = "disabled";
+               };
+
+               lpuart2: serial@2970000 {
+                       compatible = "fsl,ls1021a-lpuart";
+                       reg = <0x0 0x2970000 0x0 0x1000>;
+                       interrupts = <0 50 0x4>;
+                       clock-names = "ipg";
+                       clocks = <&sysclk>;
+                       status = "disabled";
+               };
+
+               lpuart3: serial@2980000 {
+                       compatible = "fsl,ls1021a-lpuart";
+                       reg = <0x0 0x2980000 0x0 0x1000>;
+                       interrupts = <0 51 0x4>;
+                       clocks = <&sysclk>;
+                       clock-names = "ipg";
+                       status = "disabled";
+               };
+
+               lpuart4: serial@2990000 {
+                       compatible = "fsl,ls1021a-lpuart";
+                       reg = <0x0 0x2990000 0x0 0x1000>;
+                       interrupts = <0 52 0x4>;
+                       clocks = <&sysclk>;
+                       clock-names = "ipg";
+                       status = "disabled";
+               };
+
+               lpuart5: serial@29a0000 {
+                       compatible = "fsl,ls1021a-lpuart";
+                       reg = <0x0 0x29a0000 0x0 0x1000>;
+                       interrupts = <0 53 0x4>;
+                       clocks = <&sysclk>;
+                       clock-names = "ipg";
+                       status = "disabled";
+               };
        };
 };

diff --git a/configs/ls1043aqds_lpuart_defconfig b/configs/ls1043aqds_lpuart_defconfig
new file mode 100644 (file)
index 0000000..21d6407
--- /dev/null
+++ b/configs/ls1043aqds_lpuart_defconfig
@@ -0,0 +1,10 @@
+CONFIG_ARM=y
+CONFIG_TARGET_LS1043AQDS=y
+CONFIG_DM_SERIAL=y
+CONFIG_DM_SPI=y
+CONFIG_DEFAULT_DEVICE_TREE="fsl-ls1043a-qds-lpuart"
+CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4,LPUART"
+CONFIG_OF_CONTROL=y
+CONFIG_DM=y
+CONFIG_SPI_FLASH=y
+CONFIG_FSL_LPUART=y

diff --git a/include/configs/ls1043aqds.h b/include/configs/ls1043aqds.h
index 4929d981f175e7c6312abf58688508d8fd4252af..e6725e3be8af23d2a08275bdaa32737827ce2199 100644 (file)
--- a/include/configs/ls1043aqds.h
+++ b/include/configs/ls1043aqds.h
@@ -88,6 +88,11 @@ unsigned long get_board_ddr_clk(void);
 #define CONFIG_SYS_FSL_PBL_RCW board/freescale/ls1043aqds/ls1043aqds_rcw_sd_ifc.cfg
 #endif
 
+/* LPUART */
+#ifdef CONFIG_LPUART
+#define CONFIG_LPUART_32B_REG
+#endif
+
 /* SATA */
 #define CONFIG_LIBATA
 #define CONFIG_SCSI_AHCI