[PATCH v1 13/14] ARM: dts: imx6ull-colibri: add/update some comments
From: Marcel Ziswiler
Date: Thu Apr 14 2022 - 04:52:45 EST
From: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
Add/update some comments.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx>
---
.../dts/imx6ull-colibri-emmc-nonwifi.dtsi | 4 ++-
arch/arm/boot/dts/imx6ull-colibri.dtsi | 36 ++++++++++++++-----
2 files changed, 30 insertions(+), 10 deletions(-)
diff --git a/arch/arm/boot/dts/imx6ull-colibri-emmc-nonwifi.dtsi b/arch/arm/boot/dts/imx6ull-colibri-emmc-nonwifi.dtsi
index 1d75bc671f75..ea238525d5c0 100644
--- a/arch/arm/boot/dts/imx6ull-colibri-emmc-nonwifi.dtsi
+++ b/arch/arm/boot/dts/imx6ull-colibri-emmc-nonwifi.dtsi
@@ -8,7 +8,7 @@
/ {
aliases {
mmc0 = &usdhc2; /* eMMC */
- mmc1 = &usdhc1; /* MMC 4bit slot */
+ mmc1 = &usdhc1; /* MMC 4-bit slot */
};
memory@80000000 {
@@ -154,6 +154,7 @@ &gpio5 {
"SODIMM_127";
};
+/* NAND */
&gpmi {
status = "disabled";
};
@@ -170,6 +171,7 @@ &iomuxc_snvs {
pinctrl-0 = <&pinctrl_snvs_gpio1 &pinctrl_snvs_gpio3>;
};
+/* eMMC */
&usdhc2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc2emmc>;
diff --git a/arch/arm/boot/dts/imx6ull-colibri.dtsi b/arch/arm/boot/dts/imx6ull-colibri.dtsi
index 04384139b512..f6fbc5c0e1ee 100644
--- a/arch/arm/boot/dts/imx6ull-colibri.dtsi
+++ b/arch/arm/boot/dts/imx6ull-colibri.dtsi
@@ -6,6 +6,7 @@
#include "imx6ull.dtsi"
/ {
+ /* Ethernet aliases to ensure correct MAC addresses */
aliases {
ethernet0 = &fec2;
ethernet1 = &fec1;
@@ -104,6 +105,7 @@ &ecspi1 {
pinctrl-0 = <&pinctrl_ecspi1 &pinctrl_ecspi1_cs>;
};
+/* Ethernet */
&fec2 {
pinctrl-names = "default", "sleep";
pinctrl-0 = <&pinctrl_enet2>;
@@ -125,6 +127,7 @@ ethphy1: ethernet-phy@2 {
};
};
+/* NAND */
&gpmi {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpmi_nand>;
@@ -136,6 +139,7 @@ &gpmi {
status = "okay";
};
+/* I2C3_SDA/SCL on SODIMM 194/196 (e.g. RTC on carrier board) */
&i2c1 {
pinctrl-names = "default", "gpio";
pinctrl-0 = <&pinctrl_i2c1>;
@@ -157,6 +161,10 @@ atmel_mxt_ts: touchscreen@4a {
};
};
+/*
+ * PWR_I2C: power I2C to audio codec, PMIC, temperature sensor and
+ * touch screen controller
+ */
&i2c2 {
/* Use low frequency to compensate for the high pull-up values. */
clock-frequency = <40000>;
@@ -196,21 +204,25 @@ lcdif_out: endpoint {
};
};
+/* PWM <A> */
&pwm4 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm4>;
};
+/* PWM <B> */
&pwm5 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm5>;
};
+/* PWM <C> */
&pwm6 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm6>;
};
+/* PWM <D> */
&pwm7 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm7>;
@@ -224,6 +236,7 @@ &snvs_pwrkey {
status = "disabled";
};
+/* Colibri UART_A */
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1 &pinctrl_uart1_ctrl1>;
@@ -231,6 +244,7 @@ &uart1 {
fsl,dte-mode;
};
+/* Colibri UART_B */
&uart2 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart2>;
@@ -238,12 +252,14 @@ &uart2 {
fsl,dte-mode;
};
+/* Colibri UART_C */
&uart5 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart5>;
fsl,dte-mode;
};
+/* Colibri USBC */
&usbotg1 {
dr_mode = "otg";
srp-disable;
@@ -251,10 +267,12 @@ &usbotg1 {
adp-disable;
};
+/* Colibri USBH */
&usbotg2 {
dr_mode = "host";
};
+/* Colibri MMC/SD */
&usdhc1 {
pinctrl-names = "default", "state_100mhz", "state_200mhz", "sleep";
pinctrl-0 = <&pinctrl_usdhc1 &pinctrl_snvs_usdhc1_cd>;
@@ -265,7 +283,7 @@ &usdhc1 {
assigned-clock-parents = <&clks IMX6UL_CLK_PLL2_PFD2>;
assigned-clock-rates = <0>, <198000000>;
bus-width = <4>;
- cd-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>;
+ cd-gpios = <&gpio5 0 GPIO_ACTIVE_LOW>; /* MMC_CD */
disable-wp;
keep-power-in-suspend;
no-1-8-v;
@@ -431,7 +449,7 @@ MX6UL_PAD_ENET1_RX_DATA1__GPIO2_IO01 0xb0b0 /* SODIMM 63 */
/*
* With an eMMC instead of a raw NAND device the following pins
- * are available at SODIMM pins
+ * are available at SODIMM pins.
*/
pinctrl_gpmi_gpio: gpmi-gpio-grp {
fsl,pins = <
@@ -556,10 +574,10 @@ MX6UL_PAD_UART1_CTS_B__UART1_DTE_RTS 0x1b0b1 /* SODIMM 25 */
pinctrl_uart1_ctrl1: uart1-ctrl1-grp { /* Additional DTR, DCD */
fsl,pins = <
- MX6UL_PAD_JTAG_TDI__GPIO1_IO13 0x70a0 /* SODIMM 31 */
- MX6UL_PAD_LCD_DATA18__GPIO3_IO23 0x10b0 /* SODIMM 29 */
- MX6UL_PAD_JTAG_TDO__GPIO1_IO12 0x90b1 /* SODIMM 23 */
- MX6UL_PAD_LCD_DATA19__GPIO3_IO24 0x10b0 /* SODIMM 37 */
+ MX6UL_PAD_JTAG_TDI__GPIO1_IO13 0x70a0 /* SODIMM 31 / DCD */
+ MX6UL_PAD_LCD_DATA18__GPIO3_IO23 0x10b0 /* SODIMM 29 / DSR */
+ MX6UL_PAD_JTAG_TDO__GPIO1_IO12 0x90b1 /* SODIMM 23 / DTR */
+ MX6UL_PAD_LCD_DATA19__GPIO3_IO24 0x10b0 /* SODIMM 37 / RI */
>;
};
@@ -580,7 +598,7 @@ MX6UL_PAD_GPIO1_IO05__UART5_DTE_TX 0x1b0b1 /* SODIMM 21 */
pinctrl_usbh_reg: gpio-usbh-reg {
fsl,pins = <
- MX6UL_PAD_GPIO1_IO02__GPIO1_IO02 0x10b0 /* SODIMM 129 */
+ MX6UL_PAD_GPIO1_IO02__GPIO1_IO02 0x10b0 /* SODIMM 129 / USBH_PEN */
>;
};
@@ -658,7 +676,7 @@ pinctrl_snvs_gpio1: snvs-gpio1-grp {
MX6ULL_PAD_SNVS_TAMPER6__GPIO5_IO06 0x110a0 /* SODIMM 93 */
MX6ULL_PAD_SNVS_TAMPER3__GPIO5_IO03 0x110a0 /* SODIMM 95 */
MX6ULL_PAD_BOOT_MODE0__GPIO5_IO10 0x1b0a0 /* SODIMM 105 */
- MX6ULL_PAD_SNVS_TAMPER5__GPIO5_IO05 0x0b0a0 /* SODIMM 131 */
+ MX6ULL_PAD_SNVS_TAMPER5__GPIO5_IO05 0x0b0a0 /* SODIMM 131 / USBH_OC */
MX6ULL_PAD_SNVS_TAMPER8__GPIO5_IO08 0x110a0 /* SODIMM 138 */
>;
};
@@ -695,7 +713,7 @@ MX6ULL_PAD_SNVS_TAMPER1__GPIO5_IO01 0x130a0 /* SODIMM 45 */
pinctrl_snvs_usdhc1_cd: snvs-usdhc1-cd-grp {
fsl,pins = <
- MX6ULL_PAD_SNVS_TAMPER0__GPIO5_IO00 0x1b0a0 /* SODIMM 43 */
+ MX6ULL_PAD_SNVS_TAMPER0__GPIO5_IO00 0x1b0a0 /* SODIMM 43 / MMC_CD */
>;
};
--
2.35.1