[PATCH v5 0/6] CAN: Add support for CAN in AM65,J721e and AM64

[PATCH v5 0/6] CAN: Add support for CAN in AM65,J721e and AM64

[Aswath Govindraju]

The following series of patches add support for CAN in SoC's AM65, J721e
and AM64.

changes since v4 -
- Rebased the series on top of ti-k3-dts-next branch

changes since v3 -
- Rebased the series on top of ti-k3-dts-next branch

changes since v2 -
- correct the dtbs_check errors. clock names order and interrupts
  property added in the dt bindings
- added support for main mcan instances on common processor board
  for j721e
- rebased the series on top of latest linux-next head

changes since v1 -
- changed the message ram configuration to use the maximum value
  in each field, for better performance.

Aswath Govindraju (3):
  arm64: dts: ti: am654-base-board/am65-iot2050-common: Disable mcan
    nodes
  arm64: dts: ti: k3-am64-main: Add support for MCAN
  arm64: dts: ti: k3-am642-evm/sk: Add support for main domain mcan
    nodes in EVM and disable them on SK

Faiz Abbas (3):
  arm64: dts: ti: k3-am65-mcu: Add Support for MCAN
  arm64: dts: ti: k3-j721e: Add support for MCAN nodes
  arm64: dts: ti: k3-j721e-common-proc-board: Add support for mcu and
    main mcan nodes

 arch/arm64/boot/dts/ti/k3-am64-main.dtsi      |  28 +++
 arch/arm64/boot/dts/ti/k3-am642-evm.dts       |  40 ++++
 arch/arm64/boot/dts/ti/k3-am642-sk.dts        |   8 +
 .../boot/dts/ti/k3-am65-iot2050-common.dtsi   |   8 +
 arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi       |  30 +++
 .../arm64/boot/dts/ti/k3-am654-base-board.dts |   8 +
 .../dts/ti/k3-j721e-common-proc-board.dts     | 155 ++++++++++++++
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi     | 196 ++++++++++++++++++
 .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi      |  28 +++
 9 files changed, 501 insertions(+)

-- 
2.17.1

[PATCH v5 1/6] arm64: dts: ti: k3-am65-mcu: Add Support for MCAN

[Aswath Govindraju]

From: Faiz Abbas <faiz_abbas@ti.com>

Add Support for two MCAN controllers present on the am65x SOC. Both support
classic CAN messages as well as CAN-FD.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 30 +++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
index c93ff1520a0e..8d592bf41d6f 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
@@ -159,6 +159,36 @@
 		};
 	};
 
+	m_can0: mcan@40528000 {
+		compatible = "bosch,m_can";
+		reg = <0x0 0x40528000 0x0 0x400>,
+		      <0x0 0x40500000 0x0 0x4400>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 102 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 102 5>, <&k3_clks 102 0>;
+		clock-names = "hclk", "cclk";
+		interrupt-parent = <&gic500>;
+		interrupts = <GIC_SPI 544 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 545 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	m_can1: mcan@40568000 {
+		compatible = "bosch,m_can";
+		reg = <0x0 0x40568000 0x0 0x400>,
+		      <0x0 0x40540000 0x0 0x4400>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 103 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 103 5>, <&k3_clks 103 0>;
+		clock-names = "hclk", "cclk";
+		interrupt-parent = <&gic500>;
+		interrupts = <GIC_SPI 547 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 548 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
 	fss: fss@47000000 {
 		compatible = "simple-bus";
 		#address-cells = <2>;
-- 
2.17.1

[PATCH v5 2/6] arm64: dts: ti: am654-base-board/am65-iot2050-common: Disable mcan nodes

[Aswath Govindraju]

AM654 base board and iot platforms do not have mcan instances pinned out.
Therefore, disable all the mcan instances.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi | 8 ++++++++
 arch/arm64/boot/dts/ti/k3-am654-base-board.dts     | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index 65da226847f4..1e0112b90d9f 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -646,6 +646,14 @@
 	reset-gpios = <&wkup_gpio0 27 GPIO_ACTIVE_HIGH>;
 };
 
+&m_can0 {
+	status = "disabled";
+};
+
+&m_can1 {
+	status = "disabled";
+};
+
 &pcie1_ep {
 	status = "disabled";
 };
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index cfbcebfa37c1..9043f91c9bec 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -416,6 +416,14 @@
 	status = "disabled";
 };
 
+&m_can0 {
+	status = "disabled";
+};
+
+&m_can1 {
+	status = "disabled";
+};
+
 &mailbox0_cluster0 {
 	interrupts = <436>;
 
-- 
2.17.1

[PATCH v5 3/6] arm64: dts: ti: k3-j721e: Add support for MCAN nodes

[Aswath Govindraju]

From: Faiz Abbas <faiz_abbas@ti.com>

Add support for 14 MCAN controllers in main domain and 2 MCAN controllers
present in mcu domain. All the MCAN controllers support classic CAN
messages as well as CAN_FD messages.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm64/boot/dts/ti/k3-j721e-main.dtsi     | 196 ++++++++++++++++++
 .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi      |  28 +++
 2 files changed, 224 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 08c8d1b47dcd..08a30c21e6b7 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -1940,4 +1940,200 @@
 			bus_freq = <1000000>;
 		};
 	};
+
+	main_mcan0: can@2701000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x02701000 0x00 0x200>,
+		      <0x00 0x02708000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 156 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 156 0>, <&k3_clks 156 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan1: can@2711000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x02711000 0x00 0x200>,
+		      <0x00 0x02718000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 158 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 158 0>, <&k3_clks 158 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan2: can@2721000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x02721000 0x00 0x200>,
+		      <0x00 0x02728000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 160 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 160 0>, <&k3_clks 160 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan3: can@2731000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x02731000 0x00 0x200>,
+		      <0x00 0x02738000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 161 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 161 0>, <&k3_clks 161 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan4: can@2741000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x02741000 0x00 0x200>,
+		      <0x00 0x02748000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 162 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 162 0>, <&k3_clks 162 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan5: can@2751000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x02751000 0x00 0x200>,
+		      <0x00 0x02758000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 163 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 163 0>, <&k3_clks 163 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan6: can@2761000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x02761000 0x00 0x200>,
+		      <0x00 0x02768000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 164 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 164 0>, <&k3_clks 164 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan7: can@2771000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x02771000 0x00 0x200>,
+		      <0x00 0x02778000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 165 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 165 0>, <&k3_clks 165 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan8: can@2781000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x02781000 0x00 0x200>,
+		      <0x00 0x02788000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 166 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 166 0>, <&k3_clks 166 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 576 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 577 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan9: can@2791000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x02791000 0x00 0x200>,
+		      <0x00 0x02798000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 167 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 167 0>, <&k3_clks 167 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 579 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 580 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan10: can@27a1000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x027a1000 0x00 0x200>,
+		      <0x00 0x027a8000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 168 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 168 0>, <&k3_clks 168 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 582 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 583 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan11: can@27b1000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x027b1000 0x00 0x200>,
+		      <0x00 0x027b8000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 169 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 169 0>, <&k3_clks 169 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 585 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 586 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan12: can@27c1000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x027c1000 0x00 0x200>,
+		      <0x00 0x027c8000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 170 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 170 0>, <&k3_clks 170 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 588 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 589 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan13: can@27d1000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x027d1000 0x00 0x200>,
+		      <0x00 0x027d8000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 171 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 171 0>, <&k3_clks 171 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 591 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 592 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
 };
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
index d2dceda72fe9..b4972dfb7da8 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
@@ -390,4 +390,32 @@
 			ti,loczrama = <1>;
 		};
 	};
+
+	mcu_mcan0: can@40528000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x40528000 0x00 0x200>,
+		      <0x00 0x40500000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 172 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 172 0>, <&k3_clks 172 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 832 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 833 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	mcu_mcan1: can@40568000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x40568000 0x00 0x200>,
+		      <0x00 0x40540000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 173 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 173 0>, <&k3_clks 173 1>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 835 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 836 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
 };
-- 
2.17.1

[PATCH v5 4/6] arm64: dts: ti: k3-j721e-common-proc-board: Add support for mcu and main mcan nodes

[Aswath Govindraju]

From: Faiz Abbas <faiz_abbas@ti.com>

Add four MCAN nodes present on the common processor board and set a
maximum data rate of 5 Mbps. Disable all other nodes as they
are not brought out on the common processor board.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 .../dts/ti/k3-j721e-common-proc-board.dts     | 155 ++++++++++++++++++
 1 file changed, 155 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
index dc2bc67f9f48..2d7596911b27 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
@@ -112,6 +112,42 @@
 			      "cpb-codec-scki",
 			      "cpb-codec-scki-48000", "cpb-codec-scki-44100";
 	};
+
+	transceiver1: can-phy0 {
+		compatible = "ti,tcan1043";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&mcu_mcan0_gpio_pins_default>;
+		standby-gpios = <&wkup_gpio0 54 GPIO_ACTIVE_LOW>;
+		enable-gpios = <&wkup_gpio0 0 GPIO_ACTIVE_HIGH>;
+	};
+
+	transceiver2: can-phy1 {
+		compatible = "ti,tcan1042";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&mcu_mcan1_gpio_pins_default>;
+		standby-gpios = <&wkup_gpio0 2 GPIO_ACTIVE_HIGH>;
+	};
+
+	transceiver3: can-phy2 {
+		compatible = "ti,tcan1043";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+		standby-gpios = <&exp2 7 GPIO_ACTIVE_LOW>;
+		enable-gpios = <&exp2 6 GPIO_ACTIVE_HIGH>;
+	};
+
+	transceiver4: can-phy3 {
+		compatible = "ti,tcan1042";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&main_mcan2_gpio_pins_default>;
+		standby-gpios = <&main_gpio0 127 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &main_pmx0 {
@@ -207,6 +243,26 @@
 			J721E_IOPAD(0x1a4, PIN_OUTPUT, 3) /* (W26) RGMII6_RXC.AUDIO_EXT_REFCLK2 */
 		>;
 	};
+
+	main_mcan0_pins_default: main-mcan0-pins-default {
+		pinctrl-single,pins = <
+			J721E_IOPAD(0x208, PIN_INPUT, 0) /* (W5) MCAN0_RX */
+			J721E_IOPAD(0x20c, PIN_OUTPUT, 0) /* (W6) MCAN0_TX */
+		>;
+	};
+
+	main_mcan2_pins_default: main-mcan2-pins-default {
+		pinctrl-single,pins = <
+			J721E_IOPAD(0x01f0, PIN_INPUT, 3) /* (AC2) MCAN2_RX.GPIO0_123 */
+			J721E_IOPAD(0x01f4, PIN_OUTPUT, 3) /* (AB1) MCAN2_TX.GPIO0_124 */
+		>;
+	};
+
+	main_mcan2_gpio_pins_default: main-mcan2-gpio-pins-default {
+		pinctrl-single,pins = <
+			J721E_IOPAD(0x200, PIN_INPUT, 7) /* (AC4) UART1_CTSn.GPIO0_127 */
+		>;
+	};
 };
 
 &wkup_pmx0 {
@@ -252,6 +308,33 @@
 			J721E_WKUP_IOPAD(0x0088, PIN_INPUT, 0) /* MCU_MDIO0_MDIO */
 		>;
 	};
+
+	mcu_mcan0_pins_default: mcu-mcan0-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0xac, PIN_INPUT, 0) /* (C29) MCU_MCAN0_RX */
+			J721E_WKUP_IOPAD(0xa8, PIN_OUTPUT, 0) /* (D29) MCU_MCAN0_TX */
+		>;
+	};
+
+	mcu_mcan0_gpio_pins_default: mcu-mcan0-gpio-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0xb0, PIN_INPUT, 7) /* (F26) WKUP_GPIO0_0 */
+			J721E_WKUP_IOPAD(0x98, PIN_INPUT, 7) /* (E28) MCU_SPI0_D1.WKUP_GPIO0_54 */
+		>;
+	};
+
+	mcu_mcan1_pins_default: mcu-mcan1-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0xc4, PIN_INPUT, 0) /* (G24) WKUP_GPIO0_5.MCU_MCAN1_RX */
+			J721E_WKUP_IOPAD(0xc0, PIN_OUTPUT, 0) /* (G25) WKUP_GPIO0_4.MCU_MCAN1_TX */
+		>;
+	};
+
+	mcu_mcan1_gpio_pins_default: mcu-mcan1-gpio-pins-default {
+		pinctrl-single,pins = <
+			J721E_WKUP_IOPAD(0xb8, PIN_INPUT, 7) /* (F28) WKUP_GPIO0_2 */
+		>;
+	};
 };
 
 &wkup_uart0 {
@@ -773,3 +856,75 @@
 &icssg1_mdio {
 	status = "disabled";
 };
+
+&mcu_mcan0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mcu_mcan0_pins_default>;
+	phys = <&transceiver1>;
+};
+
+&mcu_mcan1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mcu_mcan1_pins_default>;
+	phys = <&transceiver2>;
+};
+
+&main_mcan0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_mcan0_pins_default>;
+	phys = <&transceiver3>;
+};
+
+&main_mcan1 {
+	status = "disabled";
+};
+
+&main_mcan2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_mcan2_pins_default>;
+	phys = <&transceiver4>;
+};
+
+&main_mcan3 {
+	status = "disabled";
+};
+
+&main_mcan4 {
+	status = "disabled";
+};
+
+&main_mcan5 {
+	status = "disabled";
+};
+
+&main_mcan6 {
+	status = "disabled";
+};
+
+&main_mcan7 {
+	status = "disabled";
+};
+
+&main_mcan8 {
+	status = "disabled";
+};
+
+&main_mcan9 {
+	status = "disabled";
+};
+
+&main_mcan10 {
+	status = "disabled";
+};
+
+&main_mcan11 {
+	status = "disabled";
+};
+
+&main_mcan12 {
+	status = "disabled";
+};
+
+&main_mcan13 {
+	status = "disabled";
+};
-- 
2.17.1

[PATCH v5 5/6] arm64: dts: ti: k3-am64-main: Add support for MCAN

[Aswath Govindraju]

Add Support for two MCAN controllers present on the am64x SOC. Both support
classic CAN messages as well as CAN-FD.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 28 ++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
index 5ad638b95ffc..07cadbfcc436 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
@@ -1253,4 +1253,32 @@
 			bus_freq = <1000000>;
 		};
 	};
+
+	main_mcan0: can@20701000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x20701000 0x00 0x200>,
+		      <0x00 0x20708000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 98 TI_SCI_PD_EXCLUSIVE>;
+		clocks = <&k3_clks 98 5>, <&k3_clks 98 0>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
+
+	main_mcan1: can@20711000 {
+		compatible = "bosch,m_can";
+		reg = <0x00 0x20711000 0x00 0x200>,
+		      <0x00 0x20718000 0x00 0x8000>;
+		reg-names = "m_can", "message_ram";
+		power-domains = <&k3_pds 99 TI_SCI_PD_EXCLUSIVE>;
+		clocks =  <&k3_clks 99 5>, <&k3_clks 99 0>;
+		clock-names = "hclk", "cclk";
+		interrupts = <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "int0", "int1";
+		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
+	};
 };
-- 
2.17.1

[PATCH v5 6/6] arm64: dts: ti: k3-am642-evm/sk: Add support for main domain mcan nodes in EVM and disable them on SK

[Aswath Govindraju]

AM642 EVM has two CAN connecters brought out from the two MCAN instances in
the main domain through transceivers. Add device tree nodes for
transceivers and set the required properties in the mcan device tree nodes,
in EVM device tree file.

On AM642 SK there are no connectors brought out for CAN. Therefore, disable
the mcan device tree nodes in the SK device tree file.

Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am642-evm.dts | 40 +++++++++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am642-sk.dts  |  8 +++++
 2 files changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 6726c4c7c28c..e94ae178b1ae 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -184,6 +184,20 @@
 			};
 		};
 	};
+
+	transceiver1: can-phy0 {
+		compatible = "ti,tcan1042";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+		standby-gpios = <&exp1 8 GPIO_ACTIVE_HIGH>;
+	};
+
+	transceiver2: can-phy1 {
+		compatible = "ti,tcan1042";
+		#phy-cells = <0>;
+		max-bitrate = <5000000>;
+		standby-gpios = <&exp1 9 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &main_pmx0 {
@@ -294,6 +308,20 @@
 			AM64X_IOPAD(0x0270, PIN_INPUT, 0) /* (D18) ECAP0_IN_APWM_OUT */
 		>;
 	};
+
+	main_mcan0_pins_default: main-mcan0-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x0254, PIN_INPUT, 0) /* (B17) MCAN0_RX */
+			AM64X_IOPAD(0x0250, PIN_OUTPUT, 0) /* (A17) MCAN0_TX */
+		>;
+	};
+
+	main_mcan1_pins_default: main-mcan1-pins-default {
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x025c, PIN_INPUT, 0) /* (D17) MCAN1_RX */
+			AM64X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (C17) MCAN1_TX */
+		>;
+	};
 };
 
 &main_uart0 {
@@ -638,3 +666,15 @@
 &icssg1_mdio {
 	status = "disabled";
 };
+
+&main_mcan0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_mcan0_pins_default>;
+	phys = <&transceiver1>;
+};
+
+&main_mcan1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_mcan1_pins_default>;
+	phys = <&transceiver2>;
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 6b04745147be..a9785bec12df 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -525,3 +525,11 @@
 &icssg1_mdio {
 	status = "disabled";
 };
+
+&main_mcan0 {
+	status = "disabled";
+};
+
+&main_mcan1 {
+	status = "disabled";
+};
-- 
2.17.1

Re: [PATCH v5 1/6] arm64: dts: ti: k3-am65-mcu: Add Support for MCAN

[Apurva Nandan]

On 22/11/21 7:11 pm, Aswath Govindraju wrote:
> From: Faiz Abbas <faiz_abbas@ti.com>
>
> Add Support for two MCAN controllers present on the am65x SOC. Both support
> classic CAN messages as well as CAN-FD.
>
> Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>

Reviewed-by: Apurva Nandan <a-nandan@ti.com>

> ---
>   arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 30 +++++++++++++++++++++++++
>   1 file changed, 30 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> index c93ff1520a0e..8d592bf41d6f 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
> @@ -159,6 +159,36 @@
>   		};
>   	};
>   
> +	m_can0: mcan@40528000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x0 0x40528000 0x0 0x400>,
> +		      <0x0 0x40500000 0x0 0x4400>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 102 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 102 5>, <&k3_clks 102 0>;
> +		clock-names = "hclk", "cclk";
> +		interrupt-parent = <&gic500>;
> +		interrupts = <GIC_SPI 544 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 545 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	m_can1: mcan@40568000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x0 0x40568000 0x0 0x400>,
> +		      <0x0 0x40540000 0x0 0x4400>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 103 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 103 5>, <&k3_clks 103 0>;
> +		clock-names = "hclk", "cclk";
> +		interrupt-parent = <&gic500>;
> +		interrupts = <GIC_SPI 547 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 548 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
>   	fss: fss@47000000 {
>   		compatible = "simple-bus";
>   		#address-cells = <2>;

Re: [PATCH v5 2/6] arm64: dts: ti: am654-base-board/am65-iot2050-common: Disable mcan nodes

[Apurva Nandan]

On 22/11/21 7:11 pm, Aswath Govindraju wrote:
> AM654 base board and iot platforms do not have mcan instances pinned out.
> Therefore, disable all the mcan instances.
>
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>

Reviewed-by: Apurva Nandan <a-nandan@ti.com>

> ---
>   arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi | 8 ++++++++
>   arch/arm64/boot/dts/ti/k3-am654-base-board.dts     | 8 ++++++++
>   2 files changed, 16 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
> index 65da226847f4..1e0112b90d9f 100644
> --- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
> @@ -646,6 +646,14 @@
>   	reset-gpios = <&wkup_gpio0 27 GPIO_ACTIVE_HIGH>;
>   };
>   
> +&m_can0 {
> +	status = "disabled";
> +};
> +
> +&m_can1 {
> +	status = "disabled";
> +};
> +
>   &pcie1_ep {
>   	status = "disabled";
>   };
> diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
> index cfbcebfa37c1..9043f91c9bec 100644
> --- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
> @@ -416,6 +416,14 @@
>   	status = "disabled";
>   };
>   
> +&m_can0 {
> +	status = "disabled";
> +};
> +
> +&m_can1 {
> +	status = "disabled";
> +};
> +
>   &mailbox0_cluster0 {
>   	interrupts = <436>;
>   

Re: [PATCH v5 3/6] arm64: dts: ti: k3-j721e: Add support for MCAN nodes

[Apurva Nandan]

On 22/11/21 7:11 pm, Aswath Govindraju wrote:
> From: Faiz Abbas <faiz_abbas@ti.com>
>
> Add support for 14 MCAN controllers in main domain and 2 MCAN controllers
> present in mcu domain. All the MCAN controllers support classic CAN
> messages as well as CAN_FD messages.
>
> Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>

Reviewed-by: Apurva Nandan <a-nandan@ti.com>

> ---
>   arch/arm64/boot/dts/ti/k3-j721e-main.dtsi     | 196 ++++++++++++++++++
>   .../boot/dts/ti/k3-j721e-mcu-wakeup.dtsi      |  28 +++
>   2 files changed, 224 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> index 08c8d1b47dcd..08a30c21e6b7 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
> @@ -1940,4 +1940,200 @@
>   			bus_freq = <1000000>;
>   		};
>   	};
> +
> +	main_mcan0: can@2701000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x02701000 0x00 0x200>,
> +		      <0x00 0x02708000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 156 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 156 0>, <&k3_clks 156 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan1: can@2711000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x02711000 0x00 0x200>,
> +		      <0x00 0x02718000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 158 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 158 0>, <&k3_clks 158 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan2: can@2721000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x02721000 0x00 0x200>,
> +		      <0x00 0x02728000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 160 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 160 0>, <&k3_clks 160 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan3: can@2731000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x02731000 0x00 0x200>,
> +		      <0x00 0x02738000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 161 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 161 0>, <&k3_clks 161 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan4: can@2741000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x02741000 0x00 0x200>,
> +		      <0x00 0x02748000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 162 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 162 0>, <&k3_clks 162 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan5: can@2751000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x02751000 0x00 0x200>,
> +		      <0x00 0x02758000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 163 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 163 0>, <&k3_clks 163 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan6: can@2761000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x02761000 0x00 0x200>,
> +		      <0x00 0x02768000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 164 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 164 0>, <&k3_clks 164 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan7: can@2771000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x02771000 0x00 0x200>,
> +		      <0x00 0x02778000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 165 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 165 0>, <&k3_clks 165 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan8: can@2781000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x02781000 0x00 0x200>,
> +		      <0x00 0x02788000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 166 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 166 0>, <&k3_clks 166 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 576 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 577 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan9: can@2791000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x02791000 0x00 0x200>,
> +		      <0x00 0x02798000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 167 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 167 0>, <&k3_clks 167 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 579 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 580 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan10: can@27a1000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x027a1000 0x00 0x200>,
> +		      <0x00 0x027a8000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 168 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 168 0>, <&k3_clks 168 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 582 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 583 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan11: can@27b1000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x027b1000 0x00 0x200>,
> +		      <0x00 0x027b8000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 169 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 169 0>, <&k3_clks 169 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 585 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 586 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan12: can@27c1000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x027c1000 0x00 0x200>,
> +		      <0x00 0x027c8000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 170 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 170 0>, <&k3_clks 170 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 588 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 589 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan13: can@27d1000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x027d1000 0x00 0x200>,
> +		      <0x00 0x027d8000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 171 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 171 0>, <&k3_clks 171 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 591 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 592 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
>   };
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
> index d2dceda72fe9..b4972dfb7da8 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi
> @@ -390,4 +390,32 @@
>   			ti,loczrama = <1>;
>   		};
>   	};
> +
> +	mcu_mcan0: can@40528000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x40528000 0x00 0x200>,
> +		      <0x00 0x40500000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 172 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 172 0>, <&k3_clks 172 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 832 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 833 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	mcu_mcan1: can@40568000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x40568000 0x00 0x200>,
> +		      <0x00 0x40540000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 173 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 173 0>, <&k3_clks 173 1>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 835 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 836 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
>   };

Re: [PATCH v5 4/6] arm64: dts: ti: k3-j721e-common-proc-board: Add support for mcu and main mcan nodes

[Apurva Nandan]

On 22/11/21 7:11 pm, Aswath Govindraju wrote:
> From: Faiz Abbas <faiz_abbas@ti.com>
>
> Add four MCAN nodes present on the common processor board and set a
> maximum data rate of 5 Mbps. Disable all other nodes as they
> are not brought out on the common processor board.
>
> Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>

Reviewed-by: Apurva Nandan <a-nandan@ti.com>

> ---
>   .../dts/ti/k3-j721e-common-proc-board.dts     | 155 ++++++++++++++++++
>   1 file changed, 155 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> index dc2bc67f9f48..2d7596911b27 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts
> @@ -112,6 +112,42 @@
>   			      "cpb-codec-scki",
>   			      "cpb-codec-scki-48000", "cpb-codec-scki-44100";
>   	};
> +
> +	transceiver1: can-phy0 {
> +		compatible = "ti,tcan1043";
> +		#phy-cells = <0>;
> +		max-bitrate = <5000000>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&mcu_mcan0_gpio_pins_default>;
> +		standby-gpios = <&wkup_gpio0 54 GPIO_ACTIVE_LOW>;
> +		enable-gpios = <&wkup_gpio0 0 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	transceiver2: can-phy1 {
> +		compatible = "ti,tcan1042";
> +		#phy-cells = <0>;
> +		max-bitrate = <5000000>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&mcu_mcan1_gpio_pins_default>;
> +		standby-gpios = <&wkup_gpio0 2 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	transceiver3: can-phy2 {
> +		compatible = "ti,tcan1043";
> +		#phy-cells = <0>;
> +		max-bitrate = <5000000>;
> +		standby-gpios = <&exp2 7 GPIO_ACTIVE_LOW>;
> +		enable-gpios = <&exp2 6 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	transceiver4: can-phy3 {
> +		compatible = "ti,tcan1042";
> +		#phy-cells = <0>;
> +		max-bitrate = <5000000>;
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&main_mcan2_gpio_pins_default>;
> +		standby-gpios = <&main_gpio0 127 GPIO_ACTIVE_HIGH>;
> +	};
>   };
>   
>   &main_pmx0 {
> @@ -207,6 +243,26 @@
>   			J721E_IOPAD(0x1a4, PIN_OUTPUT, 3) /* (W26) RGMII6_RXC.AUDIO_EXT_REFCLK2 */
>   		>;
>   	};
> +
> +	main_mcan0_pins_default: main-mcan0-pins-default {
> +		pinctrl-single,pins = <
> +			J721E_IOPAD(0x208, PIN_INPUT, 0) /* (W5) MCAN0_RX */
> +			J721E_IOPAD(0x20c, PIN_OUTPUT, 0) /* (W6) MCAN0_TX */
> +		>;
> +	};
> +
> +	main_mcan2_pins_default: main-mcan2-pins-default {
> +		pinctrl-single,pins = <
> +			J721E_IOPAD(0x01f0, PIN_INPUT, 3) /* (AC2) MCAN2_RX.GPIO0_123 */
> +			J721E_IOPAD(0x01f4, PIN_OUTPUT, 3) /* (AB1) MCAN2_TX.GPIO0_124 */
> +		>;
> +	};
> +
> +	main_mcan2_gpio_pins_default: main-mcan2-gpio-pins-default {
> +		pinctrl-single,pins = <
> +			J721E_IOPAD(0x200, PIN_INPUT, 7) /* (AC4) UART1_CTSn.GPIO0_127 */
> +		>;
> +	};
>   };
>   
>   &wkup_pmx0 {
> @@ -252,6 +308,33 @@
>   			J721E_WKUP_IOPAD(0x0088, PIN_INPUT, 0) /* MCU_MDIO0_MDIO */
>   		>;
>   	};
> +
> +	mcu_mcan0_pins_default: mcu-mcan0-pins-default {
> +		pinctrl-single,pins = <
> +			J721E_WKUP_IOPAD(0xac, PIN_INPUT, 0) /* (C29) MCU_MCAN0_RX */
> +			J721E_WKUP_IOPAD(0xa8, PIN_OUTPUT, 0) /* (D29) MCU_MCAN0_TX */
> +		>;
> +	};
> +
> +	mcu_mcan0_gpio_pins_default: mcu-mcan0-gpio-pins-default {
> +		pinctrl-single,pins = <
> +			J721E_WKUP_IOPAD(0xb0, PIN_INPUT, 7) /* (F26) WKUP_GPIO0_0 */
> +			J721E_WKUP_IOPAD(0x98, PIN_INPUT, 7) /* (E28) MCU_SPI0_D1.WKUP_GPIO0_54 */
> +		>;
> +	};
> +
> +	mcu_mcan1_pins_default: mcu-mcan1-pins-default {
> +		pinctrl-single,pins = <
> +			J721E_WKUP_IOPAD(0xc4, PIN_INPUT, 0) /* (G24) WKUP_GPIO0_5.MCU_MCAN1_RX */
> +			J721E_WKUP_IOPAD(0xc0, PIN_OUTPUT, 0) /* (G25) WKUP_GPIO0_4.MCU_MCAN1_TX */
> +		>;
> +	};
> +
> +	mcu_mcan1_gpio_pins_default: mcu-mcan1-gpio-pins-default {
> +		pinctrl-single,pins = <
> +			J721E_WKUP_IOPAD(0xb8, PIN_INPUT, 7) /* (F28) WKUP_GPIO0_2 */
> +		>;
> +	};
>   };
>   
>   &wkup_uart0 {
> @@ -773,3 +856,75 @@
>   &icssg1_mdio {
>   	status = "disabled";
>   };
> +
> +&mcu_mcan0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&mcu_mcan0_pins_default>;
> +	phys = <&transceiver1>;
> +};
> +
> +&mcu_mcan1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&mcu_mcan1_pins_default>;
> +	phys = <&transceiver2>;
> +};
> +
> +&main_mcan0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&main_mcan0_pins_default>;
> +	phys = <&transceiver3>;
> +};
> +
> +&main_mcan1 {
> +	status = "disabled";
> +};
> +
> +&main_mcan2 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&main_mcan2_pins_default>;
> +	phys = <&transceiver4>;
> +};
> +
> +&main_mcan3 {
> +	status = "disabled";
> +};
> +
> +&main_mcan4 {
> +	status = "disabled";
> +};
> +
> +&main_mcan5 {
> +	status = "disabled";
> +};
> +
> +&main_mcan6 {
> +	status = "disabled";
> +};
> +
> +&main_mcan7 {
> +	status = "disabled";
> +};
> +
> +&main_mcan8 {
> +	status = "disabled";
> +};
> +
> +&main_mcan9 {
> +	status = "disabled";
> +};
> +
> +&main_mcan10 {
> +	status = "disabled";
> +};
> +
> +&main_mcan11 {
> +	status = "disabled";
> +};
> +
> +&main_mcan12 {
> +	status = "disabled";
> +};
> +
> +&main_mcan13 {
> +	status = "disabled";
> +};

Re: [PATCH v5 5/6] arm64: dts: ti: k3-am64-main: Add support for MCAN

[Apurva Nandan]

On 22/11/21 7:11 pm, Aswath Govindraju wrote:
> Add Support for two MCAN controllers present on the am64x SOC. Both support
> classic CAN messages as well as CAN-FD.
>
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>

Reviewed-by: Apurva Nandan <a-nandan@ti.com>

> ---
>   arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 28 ++++++++++++++++++++++++
>   1 file changed, 28 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> index 5ad638b95ffc..07cadbfcc436 100644
> --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> @@ -1253,4 +1253,32 @@
>   			bus_freq = <1000000>;
>   		};
>   	};
> +
> +	main_mcan0: can@20701000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x20701000 0x00 0x200>,
> +		      <0x00 0x20708000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 98 TI_SCI_PD_EXCLUSIVE>;
> +		clocks = <&k3_clks 98 5>, <&k3_clks 98 0>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
> +
> +	main_mcan1: can@20711000 {
> +		compatible = "bosch,m_can";
> +		reg = <0x00 0x20711000 0x00 0x200>,
> +		      <0x00 0x20718000 0x00 0x8000>;
> +		reg-names = "m_can", "message_ram";
> +		power-domains = <&k3_pds 99 TI_SCI_PD_EXCLUSIVE>;
> +		clocks =  <&k3_clks 99 5>, <&k3_clks 99 0>;
> +		clock-names = "hclk", "cclk";
> +		interrupts = <GIC_SPI 158 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 159 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "int0", "int1";
> +		bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> +	};
>   };

Re: [PATCH v5 6/6] arm64: dts: ti: k3-am642-evm/sk: Add support for main domain mcan nodes in EVM and disable them on SK

[Apurva Nandan]

On 22/11/21 7:11 pm, Aswath Govindraju wrote:
> AM642 EVM has two CAN connecters brought out from the two MCAN instances in
> the main domain through transceivers. Add device tree nodes for
> transceivers and set the required properties in the mcan device tree nodes,
> in EVM device tree file.
>
> On AM642 SK there are no connectors brought out for CAN. Therefore, disable
> the mcan device tree nodes in the SK device tree file.
>
> Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>

Reviewed-by: Apurva Nandan <a-nandan@ti.com>

> ---
>   arch/arm64/boot/dts/ti/k3-am642-evm.dts | 40 +++++++++++++++++++++++++
>   arch/arm64/boot/dts/ti/k3-am642-sk.dts  |  8 +++++
>   2 files changed, 48 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
> index 6726c4c7c28c..e94ae178b1ae 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
> @@ -184,6 +184,20 @@
>   			};
>   		};
>   	};
> +
> +	transceiver1: can-phy0 {
> +		compatible = "ti,tcan1042";
> +		#phy-cells = <0>;
> +		max-bitrate = <5000000>;
> +		standby-gpios = <&exp1 8 GPIO_ACTIVE_HIGH>;
> +	};
> +
> +	transceiver2: can-phy1 {
> +		compatible = "ti,tcan1042";
> +		#phy-cells = <0>;
> +		max-bitrate = <5000000>;
> +		standby-gpios = <&exp1 9 GPIO_ACTIVE_HIGH>;
> +	};
>   };
>   
>   &main_pmx0 {
> @@ -294,6 +308,20 @@
>   			AM64X_IOPAD(0x0270, PIN_INPUT, 0) /* (D18) ECAP0_IN_APWM_OUT */
>   		>;
>   	};
> +
> +	main_mcan0_pins_default: main-mcan0-pins-default {
> +		pinctrl-single,pins = <
> +			AM64X_IOPAD(0x0254, PIN_INPUT, 0) /* (B17) MCAN0_RX */
> +			AM64X_IOPAD(0x0250, PIN_OUTPUT, 0) /* (A17) MCAN0_TX */
> +		>;
> +	};
> +
> +	main_mcan1_pins_default: main-mcan1-pins-default {
> +		pinctrl-single,pins = <
> +			AM64X_IOPAD(0x025c, PIN_INPUT, 0) /* (D17) MCAN1_RX */
> +			AM64X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (C17) MCAN1_TX */
> +		>;
> +	};
>   };
>   
>   &main_uart0 {
> @@ -638,3 +666,15 @@
>   &icssg1_mdio {
>   	status = "disabled";
>   };
> +
> +&main_mcan0 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&main_mcan0_pins_default>;
> +	phys = <&transceiver1>;
> +};
> +
> +&main_mcan1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&main_mcan1_pins_default>;
> +	phys = <&transceiver2>;
> +};
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> index 6b04745147be..a9785bec12df 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> @@ -525,3 +525,11 @@
>   &icssg1_mdio {
>   	status = "disabled";
>   };
> +
> +&main_mcan0 {
> +	status = "disabled";
> +};
> +
> +&main_mcan1 {
> +	status = "disabled";
> +};

Re: [PATCH v5 0/6] CAN: Add support for CAN in AM65,J721e and AM64

[Vignesh Raghavendra]

Hi Aswath Govindraju,
 
On Mon, 22 Nov 2021 19:11:52 +0530, Aswath Govindraju wrote:
> The following series of patches add support for CAN in SoC's AM65, J721e
> and AM64.
> 
> changes since v4 -
> - Rebased the series on top of ti-k3-dts-next branch
> 
> changes since v3 -
> - Rebased the series on top of ti-k3-dts-next branch
> 
> [...]
 
I have applied the following to branch ti-k3-dts-next on [1].
Thank you!
 
[1/6] arm64: dts: ti: k3-am65-mcu: Add Support for MCAN
      commit: c3e4ea557ddb0a7fa431564bb1bb023ffbf823f4
[2/6] arm64: dts: ti: am654-base-board/am65-iot2050-common: Disable mcan nodes
      commit: f533bb82def8b923668df97c36c1f8fe6a3a8f1f
[3/6] arm64: dts: ti: k3-j721e: Add support for MCAN nodes
      commit: 4688a4fcb7a20d347a52c1f2dc9bc6fad9df1174
[4/6] arm64: dts: ti: k3-j721e-common-proc-board: Add support for mcu and main mcan nodes
      commit: 87d60c4663b6eb964cca6a03adfcf8976f374559
[5/6] arm64: dts: ti: k3-am64-main: Add support for MCAN
      commit: 9c4441ad3da1fad75aabfd68e90558c20a2818d2
[6/6] arm64: dts: ti: k3-am642-evm/sk: Add support for main domain mcan nodes in EVM and disable them on SK
      commit: 2f474da98caf9a75d7777c5465d281240c706bc6
 
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent up the chain during
the next merge window (or sooner if it is a relevant bug fix), however if
problems are discovered then the patch may be dropped or reverted.
 
You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.
 
If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.
 
Please add any relevant lists and maintainers to the CCs when replying
to this mail.
 
[1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
--
Vignesh