The following series of patches enables RPi header on j721e sk. It is a
40 pin io expansion header which brings out i2c5, ehrpwm 2,3 and some pins
of gpio 0,1
v8:
- Fixed the wraparound scheme in commit messages to 75 characters
- Added explanation in 1 for why the nodes are disabled
v7:
- Rebased to next-20221103
- Move setting status diable to main dtsi
v6:
- Rebased to 6.1-rc1
v5:
- Enable only gpio's and i2c on the RPi Header
as per the discussion in the v4
v4:
- Correct the node name in dt binding example
v3:
- Change node name from clock to clock-controller
- Add correct description for clock-controller node
v2:
- Add full path for clock property $ref
- Remove the discription for clock pattern property,
since $ref is added
- Remove the label in the example
- Fix the indentation in the example
Rahul T R (1):
arm64: dts: ti: k3-j721e-sk: Add pinmux for RPi Header
Vijay Pothukuchi (1):
arm64: dts: ti: k3-j721e-main: Add dts nodes for EHRPWMs
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 68 ++++++++++++++++++++++-
arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 59 ++++++++++++++++++++
2 files changed, 126 insertions(+), 1 deletion(-)
--
2.38.0
From: Vijay Pothukuchi <[email protected]>
Add dts nodes for 6 EHRPWM instances on SoC. Disable EHRPWM nodes in the
dtsi files and only enable the ones that are actually pinned out on a
given board.
Signed-off-by: Vijay Pothukuchi <[email protected]>
Signed-off-by: Rahul T R <[email protected]>
---
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi | 68 ++++++++++++++++++++++-
1 file changed, 67 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
index 5c4a0e28cde5..bc3146e24816 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
@@ -66,7 +66,73 @@ usb_serdes_mux: mux-controller@4000 {
#mux-control-cells = <1>;
mux-reg-masks = <0x4000 0x8000000>, /* USB0 to SERDES0/3 mux */
<0x4010 0x8000000>; /* USB1 to SERDES1/2 mux */
- };
+ };
+
+ ehrpwm_tbclk: clock-controller@4140 {
+ compatible = "ti,am654-ehrpwm-tbclk", "syscon";
+ reg = <0x4140 0x18>;
+ #clock-cells = <1>;
+ };
+ };
+
+ main_ehrpwm0: pwm@3000000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x00 0x3000000 0x00 0x100>;
+ power-domains = <&k3_pds 83 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 0>, <&k3_clks 83 0>;
+ clock-names = "tbclk", "fck";
+ status = "disabled";
+ };
+
+ main_ehrpwm1: pwm@3010000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x00 0x3010000 0x00 0x100>;
+ power-domains = <&k3_pds 84 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 1>, <&k3_clks 84 0>;
+ clock-names = "tbclk", "fck";
+ status = "disabled";
+ };
+
+ main_ehrpwm2: pwm@3020000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x00 0x3020000 0x00 0x100>;
+ power-domains = <&k3_pds 85 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 2>, <&k3_clks 85 0>;
+ clock-names = "tbclk", "fck";
+ status = "disabled";
+ };
+
+ main_ehrpwm3: pwm@3030000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x00 0x3030000 0x00 0x100>;
+ power-domains = <&k3_pds 86 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 3>, <&k3_clks 86 0>;
+ clock-names = "tbclk", "fck";
+ status = "disabled";
+ };
+
+ main_ehrpwm4: pwm@3040000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x00 0x3040000 0x00 0x100>;
+ power-domains = <&k3_pds 87 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 4>, <&k3_clks 87 0>;
+ clock-names = "tbclk", "fck";
+ status = "disabled";
+ };
+
+ main_ehrpwm5: pwm@3050000 {
+ compatible = "ti,am654-ehrpwm", "ti,am3352-ehrpwm";
+ #pwm-cells = <3>;
+ reg = <0x00 0x3050000 0x00 0x100>;
+ power-domains = <&k3_pds 88 TI_SCI_PD_EXCLUSIVE>;
+ clocks = <&ehrpwm_tbclk 5>, <&k3_clks 88 0>;
+ clock-names = "tbclk", "fck";
+ status = "disabled";
};
gic500: interrupt-controller@1800000 {
--
2.38.0
Add pinmux required to bring out i2c5 and gpios on 40 pin RPi header on sk
board
Signed-off-by: Sinthu Raja <[email protected]>
Signed-off-by: Rahul T R <[email protected]>
---
Notes:
Only GPIO and I2C muxing is enabled, as per the comments and discussion
in v4
https://lore.kernel.org/all/20220620144322.x54zitvhjreiy3ey@uda0490373/
arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 59 ++++++++++++++++++++++++++
1 file changed, 59 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index 78aa4aa4de57..4640d280c85c 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -400,6 +400,47 @@ ekey_reset_pins_default: ekey-reset-pns-pins-default {
J721E_IOPAD(0x124, PIN_INPUT, 7) /* (Y24) PRG0_PRU1_GPO9.GPIO0_72 */
>;
};
+
+ main_i2c5_pins_default: main-i2c5-pins-default {
+ pinctrl-single,pins = <
+ J721E_IOPAD(0x150, PIN_INPUT_PULLUP, 2) /* (Y26) PRG0_MDIO0_MDIO.I2C5_SCL */
+ J721E_IOPAD(0x154, PIN_INPUT_PULLUP, 2) /* (AA27) PRG0_MDIO0_MDC.I2C5_SDA */
+ >;
+ };
+
+ rpi_header_gpio0_pins_default: rpi-header-gpio0-pins-default {
+ pinctrl-single,pins = <
+ J721E_IOPAD(0x01C, PIN_INPUT, 7) /* (AD22) PRG1_PRU0_GPO6.GPIO0_7 */
+ J721E_IOPAD(0x120, PIN_INPUT, 7) /* (AA28) PRG0_PRU1_GPO8.GPIO0_71 */
+ J721E_IOPAD(0x14C, PIN_INPUT, 7) /* (AA29) PRG0_PRU1_GPO19.GPIO0_82 */
+ J721E_IOPAD(0x02C, PIN_INPUT, 7) /* (AD21) PRG1_PRU0_GPO10.GPIO0_11 */
+ J721E_IOPAD(0x198, PIN_INPUT, 7) /* (V25) RGMII6_TD1.GPIO0_101 */
+ J721E_IOPAD(0x1B0, PIN_INPUT, 7) /* (W24) RGMII6_RD1.GPIO0_107 */
+ J721E_IOPAD(0x1A0, PIN_INPUT, 7) /* (W29) RGMII6_TXC.GPIO0_103 */
+ J721E_IOPAD(0x008, PIN_INPUT, 7) /* (AG22) PRG1_PRU0_GPO1.GPIO0_2 */
+ J721E_IOPAD(0x1D0, PIN_INPUT, 7) /* (AA3) SPI0_D1.GPIO0_115 */
+ J721E_IOPAD(0x11C, PIN_INPUT, 7) /* (AA24) PRG0_PRU1_GPO7.GPIO0_70 */
+ J721E_IOPAD(0x148, PIN_INPUT, 7) /* (AA26) PRG0_PRU1_GPO18.GPIO0_81 */
+ J721E_IOPAD(0x004, PIN_INPUT, 7) /* (AC23) PRG1_PRU0_GPO0.GPIO0_1 */
+ J721E_IOPAD(0x014, PIN_INPUT, 7) /* (AH23) PRG1_PRU0_GPO4.GPIO0_5 */
+ J721E_IOPAD(0x020, PIN_INPUT, 7) /* (AE20) PRG1_PRU0_GPO7.GPIO0_8 */
+ J721E_IOPAD(0x19C, PIN_INPUT, 7) /* (W27) RGMII6_TD0.GPIO0_102 */
+ J721E_IOPAD(0x1B4, PIN_INPUT, 7) /* (W25) RGMII6_RD0.GPIO0_108 */
+ J721E_IOPAD(0x188, PIN_INPUT, 7) /* (Y28) RGMII6_TX_CTL.GPIO0_97 */
+ J721E_IOPAD(0x00C, PIN_INPUT, 7) /* (AF22) PRG1_PRU0_GPO2.GPIO0_3 */
+ J721E_IOPAD(0x010, PIN_INPUT, 7) /* (AJ23) PRG1_PRU0_GPO3.GPIO0_4 */
+ J721E_IOPAD(0x178, PIN_INPUT, 7) /* (U27) RGMII5_RD3.GPIO0_93 */
+ J721E_IOPAD(0x17C, PIN_INPUT, 7) /* (U24) RGMII5_RD2.GPIO0_94 */
+ J721E_IOPAD(0x190, PIN_INPUT, 7) /* (W23) RGMII6_TD3.GPIO0_99 */
+ J721E_IOPAD(0x18C, PIN_INPUT, 7) /* (V23) RGMII6_RX_CTL.GPIO0_98 */
+ >;
+ };
+
+ rpi_header_gpio1_pins_default: rpi-header-gpio1-pins-default {
+ pinctrl-single,pins = <
+ J721E_IOPAD(0x234, PIN_INPUT, 7) /* (U3) EXT_REFCLK1.GPIO1_12 */
+ >;
+ };
};
&wkup_pmx0 {
@@ -600,6 +641,24 @@ i2c@1 {
};
};
+&main_i2c5 {
+ /* Brought out on RPi Header */
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_i2c5_pins_default>;
+ clock-frequency = <400000>;
+};
+
+&main_gpio0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&rpi_header_gpio0_pins_default>;
+};
+
+&main_gpio1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&rpi_header_gpio1_pins_default>;
+};
+
&main_gpio2 {
status = "disabled";
};
--
2.38.0
Hi Rahul T R,
On Mon, 7 Nov 2022 12:30:07 +0530, Rahul T R wrote:
> The following series of patches enables RPi header on j721e sk. It is a
> 40 pin io expansion header which brings out i2c5, ehrpwm 2,3 and some pins
> of gpio 0,1
>
> v8:
> - Fixed the wraparound scheme in commit messages to 75 characters
> - Added explanation in 1 for why the nodes are disabled
>
> [...]
Thank you for the patience in taking this series through the paces.
I have applied the following to branch ti-k3-dts-next on [1].
Thank you!
[1/2] arm64: dts: ti: k3-j721e-main: Add dts nodes for EHRPWMs
commit: 20f67d1dfc6ad67fd70cd000b9d017447a50dbbd
[2/2] arm64: dts: ti: k3-j721e-sk: Add pinmux for RPi Header
commit: 45924dffb58e13b902eca47e7cd960843176f075
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] git://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
--
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D