| Message ID | 20230602153554.1571128-4-nm@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: dts: ti: k3-j721s2: Mux fixups and eeprom misc | expand |
Hi Nishanth, On 6/2/2023 9:05 PM, Nishanth Menon wrote: > Define the wakeup uart pin-mux for completeness and add explicit > muxing for mcu_uart0. This allows the device tree usage in bootloader > and firmwares that can configure the same appropriately. > > Signed-off-by: Nishanth Menon <nm@ti.com> > --- > New patch in the series > > .../boot/dts/ti/k3-am68-sk-base-board.dts | 26 +++++++++++++++++++ > 1 file changed, 26 insertions(+) > > diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts > index 014ff13d1032..979898bc5b02 100644 > --- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts > +++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts > @@ -22,6 +22,8 @@ chosen { > }; > > aliases { > + serial0 = &wkup_uart0; > + serial1 = &mcu_uart0; > serial2 = &main_uart8; > mmc1 = &main_sdhci1; > can0 = &mcu_mcan0; > @@ -202,6 +204,15 @@ J721S2_IOPAD(0x08c, PIN_INPUT, 7) /* (T25) MCASP0_AXR7.GPIO0_35 */ > }; > > &wkup_pmx2 { > + wkup_uart0_pins_default: wkup-uart0-pins-default { > + pinctrl-single,pins = < > + J721S2_WKUP_IOPAD(0x070, PIN_INPUT, 0) /* (E25) WKUP_GPIO0_6.WKUP_UART0_CTSn */ > + J721S2_WKUP_IOPAD(0x074, PIN_OUTPUT, 0) /* (F28) WKUP_GPIO0_7.WKUP_UART0_RTSn */ > + J721S2_WKUP_IOPAD(0x048, PIN_INPUT, 0) /* (D28) WKUP_UART0_RXD */ > + J721S2_WKUP_IOPAD(0x04c, PIN_OUTPUT, 0) /* (D27) WKUP_UART0_TXD */ > + >; > + }; > + > mcu_cpsw_pins_default: mcu-cpsw-pins-default { > pinctrl-single,pins = < > J721S2_WKUP_IOPAD(0x02C, PIN_INPUT, 0) /* (B22) MCU_RGMII1_RD0 */ > @@ -254,6 +265,13 @@ J721S2_WKUP_IOPAD(0x07c, PIN_INPUT, 0) /* (H26) WKUP_GPIO0_9.MCU_I2C1_SDA */ > >; > }; > > + mcu_uart0_pins_default: mcu-uart0-pins-default { > + pinctrl-single,pins = < > + J721S2_WKUP_IOPAD(0x08c, PIN_INPUT, 0) /* (C24) WKUP_GPIO0_13.MCU_UART0_RXD */ > + J721S2_WKUP_IOPAD(0x088, PIN_OUTPUT, 0) /* (C25) WKUP_GPIO0_12.MCU_UART0_TXD */ > + >; > + }; Series look good. One small question, We don't have CTS and RTS Pin for mcu uart , is this due to board connections ? > [..]
On 15:23-20230606, Kumar, Udit wrote: [...] > Series look good. Could you confirm by providing a Reviewed-by Tag to the cover-letter? > > One small question, We don't have CTS and RTS Pin for mcu uart , > > is this due to board connections ? yup.
diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts index 014ff13d1032..979898bc5b02 100644 --- a/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts +++ b/arch/arm64/boot/dts/ti/k3-am68-sk-base-board.dts @@ -22,6 +22,8 @@ chosen { }; aliases { + serial0 = &wkup_uart0; + serial1 = &mcu_uart0; serial2 = &main_uart8; mmc1 = &main_sdhci1; can0 = &mcu_mcan0; @@ -202,6 +204,15 @@ J721S2_IOPAD(0x08c, PIN_INPUT, 7) /* (T25) MCASP0_AXR7.GPIO0_35 */ }; &wkup_pmx2 { + wkup_uart0_pins_default: wkup-uart0-pins-default { + pinctrl-single,pins = < + J721S2_WKUP_IOPAD(0x070, PIN_INPUT, 0) /* (E25) WKUP_GPIO0_6.WKUP_UART0_CTSn */ + J721S2_WKUP_IOPAD(0x074, PIN_OUTPUT, 0) /* (F28) WKUP_GPIO0_7.WKUP_UART0_RTSn */ + J721S2_WKUP_IOPAD(0x048, PIN_INPUT, 0) /* (D28) WKUP_UART0_RXD */ + J721S2_WKUP_IOPAD(0x04c, PIN_OUTPUT, 0) /* (D27) WKUP_UART0_TXD */ + >; + }; + mcu_cpsw_pins_default: mcu-cpsw-pins-default { pinctrl-single,pins = < J721S2_WKUP_IOPAD(0x02C, PIN_INPUT, 0) /* (B22) MCU_RGMII1_RD0 */ @@ -254,6 +265,13 @@ J721S2_WKUP_IOPAD(0x07c, PIN_INPUT, 0) /* (H26) WKUP_GPIO0_9.MCU_I2C1_SDA */ >; }; + mcu_uart0_pins_default: mcu-uart0-pins-default { + pinctrl-single,pins = < + J721S2_WKUP_IOPAD(0x08c, PIN_INPUT, 0) /* (C24) WKUP_GPIO0_13.MCU_UART0_RXD */ + J721S2_WKUP_IOPAD(0x088, PIN_OUTPUT, 0) /* (C25) WKUP_GPIO0_12.MCU_UART0_TXD */ + >; + }; + mcu_rpi_header_gpio0_pins0_default: mcu-rpi-header-gpio0-pins0-default { pinctrl-single,pins = < J721S2_WKUP_IOPAD(0x118, PIN_INPUT, 7) /* (G25) WKUP_GPIO0_66 */ @@ -305,6 +323,14 @@ &wkup_gpio1 { &wkup_uart0 { status = "reserved"; + pinctrl-names = "default"; + pinctrl-0 = <&wkup_uart0_pins_default>; +}; + +&mcu_uart0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&mcu_uart0_pins_default>; }; &main_uart8 {
Define the wakeup uart pin-mux for completeness and add explicit muxing for mcu_uart0. This allows the device tree usage in bootloader and firmwares that can configure the same appropriately. Signed-off-by: Nishanth Menon <nm@ti.com> --- New patch in the series .../boot/dts/ti/k3-am68-sk-base-board.dts | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+)