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Mon, 03 Nov 2025 04:40:11 -0800 (PST) From: "Markus Schneider-Pargmann (TI.com)" Date: Mon, 03 Nov 2025 13:39:28 +0100 Subject: [PATCH v5 1/6] arm64: dts: ti: k3-am62: Define possible system states Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251103-topic-am62-dt-partialio-v6-15-v5-1-b8d9ff5f2742@baylibre.com> References: <20251103-topic-am62-dt-partialio-v6-15-v5-0-b8d9ff5f2742@baylibre.com> In-Reply-To: <20251103-topic-am62-dt-partialio-v6-15-v5-0-b8d9ff5f2742@baylibre.com> To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Vishal Mahaveer , Kevin Hilman , Dhruva Gole , Sebin Francis , Kendall Willis , Akashdeep Kaur , "Markus Schneider-Pargmann (TI.com)" X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1217; i=msp@baylibre.com; h=from:subject:message-id; bh=CD8jS3mi5l0ptE5mloshmhyPStp+3Ujo5r6yvkMZV70=; b=owGbwMvMwCXWejAsc4KoVzDjabUkhkyORV0vpu16rjT3+a7vb0R3TszcFcrt92hu81YxJ38VX tdzoj+3dpSyMIhxMciKKbJ0Joam/ZffeSx50bLNMHNYmUCGMHBxCsBEYpwZGd5tfh/GeyTA/SrT yRlZ7d9XH5n25+zHmMeLmmTOTVwo+X8ZI8ODHdKH/mUcedG6ce2kdX26gkIFflmaHZyJM3ttpq7 92scHAA== X-Developer-Key: i=msp@baylibre.com; a=openpgp; fpr=BADD88DB889FDC3E8A3D5FE612FA6A01E0A45B41 Add the system states that are available on TI AM62 SoCs. Signed-off-by: Markus Schneider-Pargmann (TI.com) Reviewed-by: Kendall Willis --- arch/arm64/boot/dts/ti/k3-am62.dtsi | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62.dtsi b/arch/arm64/boot/dts/ti/k= 3-am62.dtsi index 59f6dff552ed40e4ac0f9c7077aa25d68d3b5283..b08b7062060ca12ecae83917a83= 1ee779f1a288f 100644 --- a/arch/arm64/boot/dts/ti/k3-am62.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62.dtsi @@ -46,6 +46,28 @@ pmu: pmu { interrupts =3D ; }; =20 + system-idle-states { + system_partial_io: system-partial-io { + compatible =3D "system-idle-state"; + idle-state-name =3D "off-wake"; + }; + + system_deep_sleep: system-deep-sleep { + compatible =3D "system-idle-state"; + idle-state-name =3D "mem"; + }; + + system_mcu_only: system-mcu-only { + compatible =3D "system-idle-state"; + idle-state-name =3D "mem-mcu-active"; + }; + + system_standby: system-standby { + compatible =3D "system-idle-state"; + idle-state-name =3D "standby"; + }; + }; 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Mon, 03 Nov 2025 04:40:13 -0800 (PST) Received: from localhost ([2001:4090:a247:830a:fe22:a8:f29a:a5c3]) by smtp.gmail.com with UTF8SMTPSA id 4fb4d7f45d1cf-640b39f0d2esm4667335a12.33.2025.11.03.04.40.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Nov 2025 04:40:12 -0800 (PST) From: "Markus Schneider-Pargmann (TI.com)" Date: Mon, 03 Nov 2025 13:39:29 +0100 Subject: [PATCH v5 2/6] arm64: dts: ti: k3-am62a: Define possible system states Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251103-topic-am62-dt-partialio-v6-15-v5-2-b8d9ff5f2742@baylibre.com> References: <20251103-topic-am62-dt-partialio-v6-15-v5-0-b8d9ff5f2742@baylibre.com> In-Reply-To: <20251103-topic-am62-dt-partialio-v6-15-v5-0-b8d9ff5f2742@baylibre.com> To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Vishal Mahaveer , Kevin Hilman , Dhruva Gole , Sebin Francis , Kendall Willis , Akashdeep Kaur , "Markus Schneider-Pargmann (TI.com)" X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1357; i=msp@baylibre.com; h=from:subject:message-id; bh=ewnVTjrK+RQoWcZSJk3a3VufQN4Z70DOdAXgMXn6M70=; b=owGbwMvMwCXWejAsc4KoVzDjabUkhkyORf2PxOV9ZQs7ZnCe8TyenLq7VNJSa7p96SWjnHelp w8t5VnWUcrCIMbFICumyNKZGJr2X37nseRFyzbDzGFlAhnCwMUpABPxz2P4Xz/rsdhE/b22cfP+ 3fxudkVg4tQj6h4h974tvTX39t3VlxoYGbr79q9fOrcsUjFngtUXlU0mpgzFETIzN90SsNup2G3 owAsA X-Developer-Key: i=msp@baylibre.com; a=openpgp; fpr=BADD88DB889FDC3E8A3D5FE612FA6A01E0A45B41 Add the system states that are available on TI AM62A SoCs. Signed-off-by: Markus Schneider-Pargmann (TI.com) Reviewed-by: Kendall Willis --- arch/arm64/boot/dts/ti/k3-am62a.dtsi | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62a.dtsi b/arch/arm64/boot/dts/ti/= k3-am62a.dtsi index 4d79b3e9486af18b8813a8980a57937669ff6095..31b2de035f0f748e34b8919f902= 51aa0551d9b32 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a.dtsi @@ -46,6 +46,33 @@ pmu: pmu { interrupts =3D ; }; =20 + system-idle-states { + system_partial_io: system-partial-io { + compatible =3D "system-idle-state"; + idle-state-name =3D "off-wake"; + }; + + system_io_ddr: system-io-ddr { + compatible =3D "system-idle-state"; + idle-state-name =3D "mem-deep"; + }; + + system_deep_sleep: system-deep-sleep { + compatible =3D "system-idle-state"; + idle-state-name =3D "mem"; + }; + + system_mcu_only: system-mcu-only { + compatible =3D "system-idle-state"; + idle-state-name =3D "mem-mcu-active"; + }; 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a=openpgp-sha256; l=1357; i=msp@baylibre.com; h=from:subject:message-id; bh=6hGcnBOkrSMQIKieC/McV84XZyXymXT7FDaWvZWNWbs=; b=owGbwMvMwCXWejAsc4KoVzDjabUkhkyORVO4zlYb+XjuFNbb80/xB5vjh8z7fb2SysedJPd9r +Va+JS5o5SFQYyLQVZMkaUzMTTtv/zOY8mLlm2GmcPKBDKEgYtTACbifIiRYVkAL4ton6lHQkOp oNsa8dIOnRAu/5D2CT6CruxODC7LGRkmv4sUdeM/JFNwb/Ixj7SuDumLy3y/7lN7VnWE8R733BA mAA== X-Developer-Key: i=msp@baylibre.com; a=openpgp; fpr=BADD88DB889FDC3E8A3D5FE612FA6A01E0A45B41 Add the system states that are available on TI AM62P SoCs. Signed-off-by: Markus Schneider-Pargmann (TI.com) Reviewed-by: Kendall Willis --- arch/arm64/boot/dts/ti/k3-am62p.dtsi | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62p.dtsi b/arch/arm64/boot/dts/ti/= k3-am62p.dtsi index 75a15c368c11b068430362fe0b8d2d9ecc052588..c69e16f16c835489f2bc5cba158= 235ab955347e3 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62p.dtsi @@ -44,6 +44,33 @@ pmu: pmu { interrupts =3D ; }; =20 + system-idle-states { + system_partial_io: system-partial-io { + compatible =3D "system-idle-state"; + idle-state-name =3D "off-wake"; + }; + + system_io_ddr: system-io-ddr { + compatible =3D "system-idle-state"; + idle-state-name =3D "mem-deep"; + }; + + system_deep_sleep: system-deep-sleep { + compatible =3D "system-idle-state"; + idle-state-name =3D "mem"; + }; + + system_mcu_only: system-mcu-only { + compatible =3D "system-idle-state"; + idle-state-name =3D "mem-mcu-active"; + }; 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Mon, 03 Nov 2025 04:40:17 -0800 (PST) Received: from localhost ([2001:4090:a247:830a:fe22:a8:f29a:a5c3]) by smtp.gmail.com with UTF8SMTPSA id 4fb4d7f45d1cf-6407b428119sm9481228a12.24.2025.11.03.04.40.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Nov 2025 04:40:16 -0800 (PST) From: "Markus Schneider-Pargmann (TI.com)" Date: Mon, 03 Nov 2025 13:39:31 +0100 Subject: [PATCH v5 4/6] arm64: dts: ti: k3-am62-lp-sk: Set wakeup-source system-states Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251103-topic-am62-dt-partialio-v6-15-v5-4-b8d9ff5f2742@baylibre.com> References: <20251103-topic-am62-dt-partialio-v6-15-v5-0-b8d9ff5f2742@baylibre.com> In-Reply-To: <20251103-topic-am62-dt-partialio-v6-15-v5-0-b8d9ff5f2742@baylibre.com> To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Vishal Mahaveer , Kevin Hilman , Dhruva Gole , Sebin Francis , Kendall Willis , Akashdeep Kaur , "Markus Schneider-Pargmann (TI.com)" X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2978; i=msp@baylibre.com; h=from:subject:message-id; bh=My+67m3RKIYhTGgscnRK/PbLhWzY3WuuDDNXstUgd64=; b=owGbwMvMwCXWejAsc4KoVzDjabUkhkyORTOPO5yvm8u56fd3jrNzt1YtvaaytLv2ttjODfoTd 2cpVy8x7ihlYRDjYpAVU2TpTAxN+y+/81jyomWbYeawMoEMYeDiFICJCGxl+GfU3lGzrc5gTaG3 SptW9omwRe82HUiM5auuqucqOvH8xkpGhgeeXTmbdByWnyz2KDtz+Py61TP0K3v32Rj2/0iI+ul 6kwEA X-Developer-Key: i=msp@baylibre.com; a=openpgp; fpr=BADD88DB889FDC3E8A3D5FE612FA6A01E0A45B41 The CANUART pins of mcu_mcan0, mcu_mcan1, mcu_uart0 and wkup_uart0 are powered during Partial-IO and I/O Only + DDR and are capable of waking up the system in these states. Specify the states in which these units can do a wakeup on this board. Note that the UARTs are not capable of wakeup in Partial-IO because of of a UART mux on the board not being powered during Partial-IO. As I/O Only + DDR is not supported on AM62x, the UARTs are not added in this patch. Add pincontrol definitions for mcu_mcan0 and mcu_mcan1 for wakeup from Partial-IO. Add these as wakeup pinctrl entries for both devices. Signed-off-by: Markus Schneider-Pargmann (TI.com) Reviewed-by: Kendall Willis --- arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts | 60 ++++++++++++++++++++++++++++= ++++ 1 file changed, 60 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts b/arch/arm64/boot/dts= /ti/k3-am62-lp-sk.dts index ecfba05fe5c273c671cd0968f3eceaf54d22ac7d..cb63db337b2bc4c83b48dde693b= 95dd9fd93cd26 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62-lp-sk.dts @@ -276,3 +276,63 @@ &main_gpio1 { &gpmc0 { ranges =3D <0 0 0x00 0x51000000 0x01000000>; /* CS0 space. Min partition = =3D 16MB */ }; + +&mcu_mcan0 { + pinctrl-names =3D "default", "wakeup"; + pinctrl-0 =3D <&mcu_mcan0_tx_pins_default>, <&mcu_mcan0_rx_pins_default>; + pinctrl-1 =3D <&mcu_mcan0_tx_pins_default>, <&mcu_mcan0_rx_pins_wakeup>; + wakeup-source =3D <&system_partial_io>, + <&system_deep_sleep>, + <&system_mcu_only>, + <&system_standby>; + status =3D "okay"; +}; + +&mcu_mcan1 { + pinctrl-names =3D "default", "wakeup"; + pinctrl-0 =3D <&mcu_mcan1_tx_pins_default>, <&mcu_mcan1_rx_pins_default>; + pinctrl-1 =3D <&mcu_mcan1_tx_pins_default>, <&mcu_mcan1_rx_pins_wakeup>; + wakeup-source =3D <&system_partial_io>, + <&system_deep_sleep>, + <&system_mcu_only>, + <&system_standby>; + status =3D "okay"; +}; + +&mcu_pmx0 { + mcu_mcan0_tx_pins_default: mcu-mcan0-tx-default-pins { + pinctrl-single,pins =3D < + AM62X_IOPAD(0x034, PIN_OUTPUT, 0) /* (D6) MCU_MCAN0_TX */ + >; + }; + + mcu_mcan0_rx_pins_default: mcu-mcan0-rx-default-pins { + pinctrl-single,pins =3D < + AM62X_IOPAD(0x038, PIN_INPUT, 0) /* (B3) MCU_MCAN0_RX */ + >; 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Mon, 03 Nov 2025 04:40:18 -0800 (PST) Received: from localhost ([2001:4090:a247:830a:fe22:a8:f29a:a5c3]) by smtp.gmail.com with UTF8SMTPSA id a640c23a62f3a-b71012241a7sm254039766b.14.2025.11.03.04.40.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Nov 2025 04:40:18 -0800 (PST) From: "Markus Schneider-Pargmann (TI.com)" Date: Mon, 03 Nov 2025 13:39:32 +0100 Subject: [PATCH v5 5/6] arm64: dts: ti: k3-am62a7-sk: Set wakeup-source system-states Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251103-topic-am62-dt-partialio-v6-15-v5-5-b8d9ff5f2742@baylibre.com> References: <20251103-topic-am62-dt-partialio-v6-15-v5-0-b8d9ff5f2742@baylibre.com> In-Reply-To: <20251103-topic-am62-dt-partialio-v6-15-v5-0-b8d9ff5f2742@baylibre.com> To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Vishal Mahaveer , Kevin Hilman , Dhruva Gole , Sebin Francis , Kendall Willis , Akashdeep Kaur , "Markus Schneider-Pargmann (TI.com)" X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=3535; i=msp@baylibre.com; h=from:subject:message-id; bh=HUyVsZ1Uo+y8zY0jQWgZxPIdkvaeFXYf2apVmFo9zRw=; b=owGbwMvMwCXWejAsc4KoVzDjabUkhkyORfPc0vYtnOlx/EXs80U3apNyJ379LFi17yrPjdbYg wYyErO0O0pZGMS4GGTFFFk6E0PT/svvPJa8aNlmmDmsTCBDGLg4BWAi96QY/um4cqWLPPF59cht 8/85QjbWcze7ql6usnZ+vnB70cqN13UZGW6suePT2S/SPP+G86x9K7hZ5t1dzbX0yJ39OlNaU0+ xW7EBAA== X-Developer-Key: i=msp@baylibre.com; a=openpgp; fpr=BADD88DB889FDC3E8A3D5FE612FA6A01E0A45B41 The CANUART pins of mcu_mcan0, mcu_mcan1, mcu_uart0 and wkup_uart0 are powered during Partial-IO and I/O Only + DDR and are capable of waking up the system in these states. Specify the states in which these units can do a wakeup on this board. Note that the UARTs are not capable of wakeup in Partial-IO because of of a UART mux on the board not being powered during Partial-IO. Add pincontrol definitions for mcu_mcan0 and mcu_mcan1 for wakeup from Partial-IO. Add these as wakeup pinctrl entries for both devices. Signed-off-by: Markus Schneider-Pargmann (TI.com) --- arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 69 +++++++++++++++++++++++++++++= ++++ 1 file changed, 69 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/= ti/k3-am62a7-sk.dts index af591fe6ae4f0a91991d2904a9a61905a0eeb614..b61370db6986308ec97983f796b= 993a26debcabc 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts @@ -233,6 +233,10 @@ AM62AX_MCU_IOPAD(0x0030, PIN_OUTPUT, 0) /* (C8) WKUP_U= ART0_RTSn */ &wkup_uart0 { pinctrl-names =3D "default"; pinctrl-0 =3D <&wkup_uart0_pins_default>; + wakeup-source =3D <&system_io_ddr>, + <&system_deep_sleep>, + <&system_mcu_only>, + <&system_standby>; status =3D "reserved"; }; =20 @@ -426,6 +430,42 @@ pmic_irq_pins_default: pmic-irq-default-pins { AM62AX_MCU_IOPAD(0x000, PIN_INPUT, 7) /* (E11) MCU_GPIO0_0 */ >; }; + + mcu_mcan0_tx_pins_default: mcu-mcan0-tx-default-pins { + pinctrl-single,pins =3D < + AM62AX_MCU_IOPAD(0x034, PIN_OUTPUT, 0) /* (D6) MCU_MCAN0_TX */ + >; + }; + + mcu_mcan0_rx_pins_default: mcu-mcan0-rx-default-pins { + pinctrl-single,pins =3D < + AM62AX_MCU_IOPAD(0x038, PIN_INPUT, 0) /* (B3) MCU_MCAN0_RX */ + >; + }; + + mcu_mcan0_rx_pins_wakeup: mcu-mcan0-rx-wakeup-pins { + pinctrl-single,pins =3D < + AM62AX_MCU_IOPAD(0x038, PIN_INPUT | PIN_WKUP_EN, 0) /* (B3) MCU_MCAN0_R= X */ + >; + }; + + mcu_mcan1_tx_pins_default: mcu-mcan1-tx-default-pins { + pinctrl-single,pins =3D < + AM62AX_MCU_IOPAD(0x03c, PIN_OUTPUT, 0) /* (E5) MCU_MCAN1_TX */ + >; + }; + + mcu_mcan1_rx_pins_default: mcu-mcan1-rx-default-pins { + pinctrl-single,pins =3D < + AM62AX_MCU_IOPAD(0x040, PIN_INPUT, 0) /* (D4) MCU_MCAN1_RX */ + >; + }; + + mcu_mcan1_rx_pins_wakeup: mcu-mcan1-rx-wakeup-pins { + pinctrl-single,pins =3D < + AM62AX_MCU_IOPAD(0x040, PIN_INPUT | PIN_WKUP_EN, 0) /* (D4) MCU_MCAN1_R= X */ + >; + }; }; =20 &mcu_gpio0 { @@ -852,4 +892,33 @@ AM62AX_IOPAD(0x008, PIN_INPUT, 0) /* (J24) OSPI0_DQS */ }; }; =20 +&mcu_mcan0 { + pinctrl-names =3D "default", "wakeup"; 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Mon, 03 Nov 2025 04:40:19 -0800 (PST) Received: from localhost ([2001:4090:a247:830a:fe22:a8:f29a:a5c3]) by smtp.gmail.com with UTF8SMTPSA id a640c23a62f3a-b707bf79e72sm1007193366b.51.2025.11.03.04.40.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Nov 2025 04:40:19 -0800 (PST) From: "Markus Schneider-Pargmann (TI.com)" Date: Mon, 03 Nov 2025 13:39:33 +0100 Subject: [PATCH v5 6/6] arm64: dts: ti: k3-am62p5-sk: Set wakeup-source system-states Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251103-topic-am62-dt-partialio-v6-15-v5-6-b8d9ff5f2742@baylibre.com> References: <20251103-topic-am62-dt-partialio-v6-15-v5-0-b8d9ff5f2742@baylibre.com> In-Reply-To: <20251103-topic-am62-dt-partialio-v6-15-v5-0-b8d9ff5f2742@baylibre.com> To: Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Vishal Mahaveer , Kevin Hilman , Dhruva Gole , Sebin Francis , Kendall Willis , Akashdeep Kaur , "Markus Schneider-Pargmann (TI.com)" X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=3421; i=msp@baylibre.com; h=from:subject:message-id; bh=PBPbTiaRFBCUflC//sGsNqP/r7El5dOHwJAilCXJgpw=; b=owGbwMvMwCXWejAsc4KoVzDjabUkhkyORYtTeNIY98i/fH75983651w+v7YdE53D9Z4567Xyu 13NmQJaHaUsDGJcDLJiiiydiaFp/+V3HktetGwzzBxWJpAhDFycAjCRlJUM/1NnpeWGFTKo3uHZ xPzwi9CJnOJze+z3TdAWCdbaUNR2oYORoYcxYY0F21Kr/dO+ta16ZfTm+IE5akd279pXcCDge/X 0JGYA X-Developer-Key: i=msp@baylibre.com; a=openpgp; fpr=BADD88DB889FDC3E8A3D5FE612FA6A01E0A45B41 The CANUART pins of mcu_mcan0, mcu_mcan1, mcu_uart0 and wkup_uart0 are powered during Partial-IO and I/O Only + DDR and are capable of waking up the system in these states. Specify the states in which these units can do a wakeup on this board. Note that the UARTs are not capable of wakeup in Partial-IO because of of a UART mux on the board not being powered during Partial-IO. Add pincontrol definitions for mcu_mcan0 and mcu_mcan1 for wakeup from Partial-IO. Add these as wakeup pinctrl entries for both devices. Signed-off-by: Markus Schneider-Pargmann (TI.com) --- arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 69 +++++++++++++++++++++++++++++= ++++ 1 file changed, 69 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/= ti/k3-am62p5-sk.dts index a064a632680ec69dba9dbe591fd49caeb9ac1111..caa2f7d97aca8a48d3f16536260= 1ebdf41d0b2e6 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts @@ -716,12 +716,52 @@ AM62PX_MCU_IOPAD(0x028, PIN_OUTPUT, 0) /* (D7) WKUP_U= ART0_TXD */ >; bootph-all; }; + + mcu_mcan0_tx_pins_default: mcu-mcan0-tx-default-pins { + pinctrl-single,pins =3D < + AM62PX_MCU_IOPAD(0x034, PIN_OUTPUT, 0) /* (D6) MCU_MCAN0_TX */ + >; + }; + + mcu_mcan0_rx_pins_default: mcu-mcan0-rx-default-pins { + pinctrl-single,pins =3D < + AM62PX_MCU_IOPAD(0x038, PIN_INPUT, 0) /* (B3) MCU_MCAN0_RX */ + >; + }; + + mcu_mcan0_rx_pins_wakeup: mcu-mcan0-rx-wakeup-pins { + pinctrl-single,pins =3D < + AM62PX_MCU_IOPAD(0x038, PIN_INPUT | PIN_WKUP_EN, 0) /* (B3) MCU_MCAN0_R= X */ + >; + }; + + mcu_mcan1_tx_pins_default: mcu-mcan1-tx-default-pins { + pinctrl-single,pins =3D < + AM62PX_MCU_IOPAD(0x03c, PIN_OUTPUT, 0) /* (E5) MCU_MCAN1_TX */ + >; + }; + + mcu_mcan1_rx_pins_default: mcu-mcan1-rx-default-pins { + pinctrl-single,pins =3D < + AM62PX_MCU_IOPAD(0x040, PIN_INPUT, 0) /* (D4) MCU_MCAN1_RX */ + >; + }; + + mcu_mcan1_rx_pins_wakeup: mcu-mcan1-rx-wakeup-pins { + pinctrl-single,pins =3D < + AM62PX_MCU_IOPAD(0x040, PIN_INPUT | PIN_WKUP_EN, 0) /* (D4) MCU_MCAN1_R= X */ + >; + }; }; =20 &wkup_uart0 { /* WKUP UART0 is used by DM firmware */ pinctrl-names =3D "default"; pinctrl-0 =3D <&wkup_uart0_pins_default>; + wakeup-source =3D <&system_io_ddr>, + <&system_deep_sleep>, + <&system_mcu_only>, + <&system_standby>; status =3D "reserved"; bootph-all; }; @@ -763,4 +803,33 @@ &epwm1 { status =3D "okay"; }; =20 +&mcu_mcan0 { + pinctrl-names =3D "default", "wakeup"; + pinctrl-0 =3D <&mcu_mcan0_tx_pins_default>, <&mcu_mcan0_rx_pins_default>; + pinctrl-1 =3D <&mcu_mcan0_tx_pins_default>, <&mcu_mcan0_rx_pins_wakeup>; + wakeup-source =3D <&system_partial_io>, + <&system_io_ddr>, + <&system_deep_sleep>, + <&system_mcu_only>, + <&system_standby>; +}; + +&mcu_mcan1 { + pinctrl-names =3D "default", "wakeup"; + pinctrl-0 =3D <&mcu_mcan1_tx_pins_default>, <&mcu_mcan1_rx_pins_default>; + pinctrl-1 =3D <&mcu_mcan1_tx_pins_default>, <&mcu_mcan1_rx_pins_wakeup>; + wakeup-source =3D <&system_partial_io>, + <&system_io_ddr>, + <&system_deep_sleep>, + <&system_mcu_only>, + <&system_standby>; +}; + +&mcu_uart0 { + wakeup-source =3D <&system_io_ddr>, + <&system_deep_sleep>, + <&system_mcu_only>, + <&system_standby>; +}; + #include "k3-am62p-ti-ipc-firmware.dtsi" --=20 2.51.0