Patch:IGKBoard-IMX8MP: Add RS485/CAN support

guowenxue

2024-07-16 ac4b9f2c1f9151b0a08a9723015f0e753f379c47

Patch:IGKBoard-IMX8MP: Add RS485/CAN support

Signed-off-by: guowenxue <guowenxue@gmail.com>

 kernel/patches/igkboard-imx8mp/linux-imx-lf-6.1.36-2.1.0.patch

@@ -10,10 +10,10 @@
+dtb-$(CONFIG_ARCH_MXC) += igkboard-imx8mp.dtb
diff --git a/arch/arm64/boot/dts/freescale/igkboard-imx8mp.dts b/arch/arm64/boot/dts/freescale/igkboard-imx8mp.dts
new file mode 100644
index 000000000..7f3e9a74a
index 000000000..fa0ecba89
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/igkboard-imx8mp.dts
@@ -0,0 +1,613 @@
@@ -0,0 +1,657 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/* 
+ * Device Tree Source for LingYun IGKBoard(IoT Gateway Kits Board) - imx8mp
@@ -267,6 +267,29 @@
+};
+
+/*+------------------------+
+  |  CAN/RS485 interface   |
+  +------------------------+*/
+/* RS485 */
+&uart3 {
+    pinctrl-names = "default";
+    pinctrl-0 = <&pinctrl_uart3>;
+    status = "okay";
+};
+
+/* CAN */
+&flexcan1 {
+    pinctrl-names = "default";
+    pinctrl-0 = <&pinctrl_flexcan1>;
+    status = "okay";
+};
+
+&flexcan2 {
+    pinctrl-names = "default";
+    pinctrl-0 = <&pinctrl_flexcan2>;
+    status = "okay";
+};
+
+/*+------------------------+
+  |   MikroBUS interface   |
+  +------------------------+*/
+
@@ -470,6 +493,27 @@
+        >;
+    };
+
+    pinctrl_uart3: uart3grp {
+        fsl,pins = <
+            MX8MP_IOMUXC_ECSPI1_SCLK__UART3_DCE_RX                      0x82
+            MX8MP_IOMUXC_ECSPI1_MOSI__UART3_DCE_TX                      0x82
+        >;
+    };
+
+    pinctrl_flexcan1: flexcan1grp {
+        fsl,pins = <
+            MX8MP_IOMUXC_SPDIF_TX__CAN1_TX                              0x154
+            MX8MP_IOMUXC_SPDIF_RX__CAN1_RX                              0x154
+        >;
+    };
+
+    pinctrl_flexcan2: flexcan2grp {
+        fsl,pins = <
+            MX8MP_IOMUXC_SAI5_MCLK__CAN2_RX                             0x154
+            MX8MP_IOMUXC_SAI5_RXD3__CAN2_TX                             0x154
+        >;
+    };
+
+    pinctrl_ecspi2: ecspi2grp {
+        fsl,pins = <
+            MX8MP_IOMUXC_ECSPI2_SCLK__ECSPI2_SCLK                       0x82
@@ -629,10 +673,10 @@
+};
diff --git a/arch/arm64/configs/igkboard-imx8mp_defconfig b/arch/arm64/configs/igkboard-imx8mp_defconfig
new file mode 100644
index 000000000..d6d6206f2
index 000000000..c0bf7a7f4
--- /dev/null
+++ b/arch/arm64/configs/igkboard-imx8mp_defconfig
@@ -0,0 +1,1129 @@
@@ -0,0 +1,1127 @@
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_AUDIT=y
@@ -796,7 +840,8 @@
+CONFIG_QRTR_SMD=m
+CONFIG_QRTR_TUN=m
+CONFIG_NET_PKTGEN=m
+CONFIG_CAN=m
+CONFIG_CAN=y
+CONFIG_CAN_ISOTP=y
+CONFIG_BT=y
+CONFIG_BT_RFCOMM=y
+CONFIG_BT_RFCOMM_TTY=y
@@ -821,8 +866,6 @@
+CONFIG_CFG80211_WEXT=y
+CONFIG_MAC80211=y
+CONFIG_MAC80211_LEDS=y
+CONFIG_NET_9P=y
+CONFIG_NET_9P_VIRTIO=y
+CONFIG_NFC=m
+CONFIG_NFC_NCI=m
+CONFIG_NFC_S3FWRN5_I2C=m
@@ -980,7 +1023,7 @@
+CONFIG_REALTEK_PHY=y
+CONFIG_ROCKCHIP_PHY=y
+CONFIG_VITESSE_PHY=y
+CONFIG_CAN_FLEXCAN=m
+CONFIG_CAN_FLEXCAN=y
+CONFIG_MDIO_BITBANG=y
+CONFIG_MDIO_BUS_MUX_MULTIPLEXER=y
+CONFIG_MDIO_BUS_MUX_MMIOREG=y
@@ -1669,7 +1712,6 @@
+CONFIG_NFS_V4_1=y
+CONFIG_NFS_V4_2=y
+CONFIG_ROOT_NFS=y
+CONFIG_9P_FS=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_936=y
+CONFIG_NLS_CODEPAGE_950=y