Hi Daniel,
sorry for jumping in that late, please see my comment(s) inline.
On 22-12-06, Daniel Scally wrote:
> Add a device tree file describing the Debix Model A board from
> Polyhex Technology Co.
>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Tested-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Tested-by: Kieran Bingham <kieran.bingham@xxxxxxxxxxxxxxxx>
> Signed-off-by: Daniel Scally <dan.scally@xxxxxxxxxxxxxxxx>
> ---
> Changes in v5:
>
> - Fixed some formatting (blank lines, compatible property order) (Shawn)
> - Renamed the led nodes (Shawn)
> - Added the less specific compatible string (Ahmad)
> - Added a comment describing the eth phy (Ahmad)
> - Removed some elements that turn out to be unused (Ahmad)
It would be cool to see the whole history.
>
> arch/arm64/boot/dts/freescale/Makefile | 1 +
> .../dts/freescale/imx8mp-debix-model-a.dts | 509 ++++++++++++++++++
> 2 files changed, 510 insertions(+)
> create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-debix-model-a.dts
...
> +&iomuxc {
> + pinctrl-names = "default";
This is useless if you have no pinctrl-0.
> + pinctrl_eqos: eqosgrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_ENET_MDC__ENET_QOS_MDC 0x3
> + MX8MP_IOMUXC_ENET_MDIO__ENET_QOS_MDIO 0x3
> + MX8MP_IOMUXC_ENET_RD0__ENET_QOS_RGMII_RD0 0x91
> + MX8MP_IOMUXC_ENET_RD1__ENET_QOS_RGMII_RD1 0x91
> + MX8MP_IOMUXC_ENET_RD2__ENET_QOS_RGMII_RD2 0x91
> + MX8MP_IOMUXC_ENET_RD3__ENET_QOS_RGMII_RD3 0x91
> + MX8MP_IOMUXC_ENET_RXC__CCM_ENET_QOS_CLOCK_GENERATE_RX_CLK 0x91
> + MX8MP_IOMUXC_ENET_RX_CTL__ENET_QOS_RGMII_RX_CTL 0x91
> + MX8MP_IOMUXC_ENET_TD0__ENET_QOS_RGMII_TD0 0x1f
> + MX8MP_IOMUXC_ENET_TD1__ENET_QOS_RGMII_TD1 0x1f
> + MX8MP_IOMUXC_ENET_TD2__ENET_QOS_RGMII_TD2 0x1f
> + MX8MP_IOMUXC_ENET_TD3__ENET_QOS_RGMII_TD3 0x1f
> + MX8MP_IOMUXC_ENET_TX_CTL__ENET_QOS_RGMII_TX_CTL 0x1f
> + MX8MP_IOMUXC_ENET_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK 0x1f
> + MX8MP_IOMUXC_SAI1_RXFS__ENET1_1588_EVENT0_IN 0x1f
> + MX8MP_IOMUXC_SAI1_RXC__ENET1_1588_EVENT0_OUT 0x1f
> + MX8MP_IOMUXC_SAI1_TXD6__GPIO4_IO18 0x19
> + >;
> + };
> +
> + pinctrl_fec: fecgrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_SAI1_RXD2__ENET1_MDC 0x3
> + MX8MP_IOMUXC_SAI1_RXD3__ENET1_MDIO 0x3
> + MX8MP_IOMUXC_SAI1_RXD4__ENET1_RGMII_RD0 0x91
> + MX8MP_IOMUXC_SAI1_RXD5__ENET1_RGMII_RD1 0x91
> + MX8MP_IOMUXC_SAI1_RXD6__ENET1_RGMII_RD2 0x91
> + MX8MP_IOMUXC_SAI1_RXD7__ENET1_RGMII_RD3 0x91
> + MX8MP_IOMUXC_SAI1_TXC__ENET1_RGMII_RXC 0x91
> + MX8MP_IOMUXC_SAI1_TXFS__ENET1_RGMII_RX_CTL 0x91
> + MX8MP_IOMUXC_SAI1_TXD0__ENET1_RGMII_TD0 0x1f
> + MX8MP_IOMUXC_SAI1_TXD1__ENET1_RGMII_TD1 0x1f
> + MX8MP_IOMUXC_SAI1_TXD2__ENET1_RGMII_TD2 0x1f
> + MX8MP_IOMUXC_SAI1_TXD3__ENET1_RGMII_TD3 0x1f
> + MX8MP_IOMUXC_SAI1_TXD4__ENET1_RGMII_TX_CTL 0x1f
> + MX8MP_IOMUXC_SAI1_TXD5__ENET1_RGMII_TXC 0x1f
> + MX8MP_IOMUXC_SAI1_RXD1__ENET1_1588_EVENT1_OUT 0x1f
> + MX8MP_IOMUXC_SAI1_RXD0__ENET1_1588_EVENT1_IN 0x1f
> + MX8MP_IOMUXC_SAI1_TXD7__GPIO4_IO19 0x19
> + >;
> + };
> +
> + pinctrl_gpio_led: gpioledgrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_NAND_READY_B__GPIO3_IO16 0x19
> + >;
> + };
> +
> + pinctrl_i2c1: i2c1grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_I2C1_SCL__I2C1_SCL 0x400001c2
> + MX8MP_IOMUXC_I2C1_SDA__I2C1_SDA 0x400001c2
> + >;
> + };
> +
> + pinctrl_i2c2: i2c2grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_I2C2_SCL__I2C2_SCL 0x400001c2
> + MX8MP_IOMUXC_I2C2_SDA__I2C2_SDA 0x400001c2
> + >;
> + };
> +
> + pinctrl_i2c3: i2c3grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_I2C3_SCL__I2C3_SCL 0x400001c2
> + MX8MP_IOMUXC_I2C3_SDA__I2C3_SDA 0x400001c2
> + >;
> + };
> +
> + pinctrl_i2c4: i2c4grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_I2C4_SCL__I2C4_SCL 0x400001c3
> + MX8MP_IOMUXC_I2C4_SDA__I2C4_SDA 0x400001c3
> + >;
> + };
> +
> + pinctrl_i2c6: i2c6grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_SAI5_RXFS__I2C6_SCL 0x400001c3
> + MX8MP_IOMUXC_SAI5_RXC__I2C6_SDA 0x400001c3
> + >;
> + };
> +
> + pinctrl_pmic: pmicirqgrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_GPIO1_IO03__GPIO1_IO03 0x41
> + >;
> + };
> +
> + pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19 0x41
> + >;
> + };
> +
> + pinctrl_rtc_int: rtcintgrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_SD1_STROBE__GPIO2_IO11 0x140
> + >;
> + };
> +
> + pinctrl_uart2: uart2grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX 0x14f
> + MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX 0x14f
> + >;
> + };
> +
> + pinctrl_uart3: uart3grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_UART3_RXD__UART3_DCE_RX 0x49
> + MX8MP_IOMUXC_UART3_TXD__UART3_DCE_TX 0x49
> + >;
> + };
> +
> + pinctrl_uart4: uart4grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_UART4_RXD__UART4_DCE_RX 0x49
> + MX8MP_IOMUXC_UART4_TXD__UART4_DCE_TX 0x49
> + >;
> + };
> +
> + pinctrl_usdhc2: usdhc2grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK 0x190
> + MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD 0x1d0
> + MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0 0x1d0
> + MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1 0x1d0
> + MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2 0x1d0
> + MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3 0x1d0
> + >;
> + };
> +
> + pinctrl_usdhc2_100mhz: usdhc2-100mhzgrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK 0x194
> + MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD 0x1d4
> + MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0 0x1d4
> + MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1 0x1d4
> + MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2 0x1d4
> + MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3 0x1d4
> + >;
> + };
> +
> + pinctrl_usdhc2_200mhz: usdhc2-200mhzgrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_SD2_CLK__USDHC2_CLK 0x196
> + MX8MP_IOMUXC_SD2_CMD__USDHC2_CMD 0x1d6
> + MX8MP_IOMUXC_SD2_DATA0__USDHC2_DATA0 0x1d6
> + MX8MP_IOMUXC_SD2_DATA1__USDHC2_DATA1 0x1d6
> + MX8MP_IOMUXC_SD2_DATA2__USDHC2_DATA2 0x1d6
> + MX8MP_IOMUXC_SD2_DATA3__USDHC2_DATA3 0x1d6
> + >;
> + };
> +
> + pinctrl_usdhc2_gpio: usdhc2gpiogrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_SD2_CD_B__GPIO2_IO12 0x1c4
> + >;
> + };
> +
> + pinctrl_usdhc3: usdhc3grp {
> + fsl,pins = <
> + MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK 0x190
> + MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD 0x1d0
> + MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0 0x1d0
> + MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1 0x1d0
> + MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2 0x1d0
> + MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3 0x1d0
> + MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4 0x1d0
> + MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5 0x1d0
> + MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6 0x1d0
> + MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7 0x1d0
> + MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE 0x190
> + >;
> + };
> +
> + pinctrl_usdhc3_100mhz: usdhc3-100mhzgrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK 0x194
> + MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD 0x1d4
> + MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0 0x1d4
> + MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1 0x1d4
> + MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2 0x1d4
> + MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3 0x1d4
> + MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4 0x1d4
> + MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5 0x1d4
> + MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6 0x1d4
> + MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7 0x1d4
> + MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE 0x194
> + >;
> + };
> +
> + pinctrl_usdhc3_200mhz: usdhc3-200mhzgrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_NAND_WE_B__USDHC3_CLK 0x196
> + MX8MP_IOMUXC_NAND_WP_B__USDHC3_CMD 0x1d6
> + MX8MP_IOMUXC_NAND_DATA04__USDHC3_DATA0 0x1d6
> + MX8MP_IOMUXC_NAND_DATA05__USDHC3_DATA1 0x1d6
> + MX8MP_IOMUXC_NAND_DATA06__USDHC3_DATA2 0x1d6
> + MX8MP_IOMUXC_NAND_DATA07__USDHC3_DATA3 0x1d6
> + MX8MP_IOMUXC_NAND_RE_B__USDHC3_DATA4 0x1d6
> + MX8MP_IOMUXC_NAND_CE2_B__USDHC3_DATA5 0x1d6
> + MX8MP_IOMUXC_NAND_CE3_B__USDHC3_DATA6 0x1d6
> + MX8MP_IOMUXC_NAND_CLE__USDHC3_DATA7 0x1d6
> + MX8MP_IOMUXC_NAND_CE1_B__USDHC3_STROBE 0x196
> + >;
> + };
> +
> + pinctrl_wdog: wdoggrp {
> + fsl,pins = <
> + MX8MP_IOMUXC_GPIO1_IO02__WDOG1_WDOG_B 0xc6
> + >;
> + };
> +};
We order the DTS alphabetical but the iomuxc is the only exception here.
Since this is very long it is quite common to put it at the end.
Regards,
Marco
> +
> +&snvs_pwrkey {
> + status = "okay";
> +};
> +
> +&uart2 {
> + /* console */
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart2>;
> + status = "okay";
> +};
> +
> +&uart3 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart3>;
> + status = "okay";
> +};
> +
> +&uart4 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_uart4>;
> + status = "okay";
> +};
> +
> +/* SD Card */
> +&usdhc2 {
> + assigned-clocks = <&clk IMX8MP_CLK_USDHC2>;
> + pinctrl-names = "default", "state_100mhz", "state_200mhz";
> + pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
> + pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
> + pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
> + cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
> + vmmc-supply = <®_usdhc2_vmmc>;
> + bus-width = <4>;
> + status = "okay";
> +};
> +
> +/* eMMC */
> +&usdhc3 {
> + assigned-clocks = <&clk IMX8MP_CLK_USDHC3>;
> + assigned-clock-rates = <400000000>;
> + pinctrl-names = "default", "state_100mhz", "state_200mhz";
> + pinctrl-0 = <&pinctrl_usdhc3>;
> + pinctrl-1 = <&pinctrl_usdhc3_100mhz>;
> + pinctrl-2 = <&pinctrl_usdhc3_200mhz>;
> + bus-width = <8>;
> + non-removable;
> + status = "okay";
> +};
> +
> +&wdog1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_wdog>;
> + fsl,ext-reset-output;
> + status = "okay";
> +};
> --
> 2.34.1
>
>
>
