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linux-yocto/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi
Adam Ford 7a276effd5 arm64: dts: imx8mp-beacon: Fix RTC capacitive load 
[ Upstream commit 6821ee17537938e919e8b86a541aae451f73165b ]

Although not noticeable when used every day, the RTC appears to drift when
left to sit over time.  This is due to the capacitive load not being
properly set. Fix RTC drift by correcting the capacitive load setting
from 7000 to 12500, which matches the actual hardware configuration.

Fixes: 25a5ccdce7 ("arm64: dts: freescale: Introduce imx8mp-beacon-kit")
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-19 15:28:22 +02:00

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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright 2023 LogicPD, Inc. dba Beacon EmbeddedWorks
*/
/ {
aliases {
rtc0 = &rtc;
rtc1 = &snvs_rtc;
};
memory@40000000 {
device_type = "memory";
reg = <0x0 0x40000000 0 0xc0000000>,
<0x1 0x00000000 0 0xc0000000>;
};
reg_wl_bt: regulator-wifi-bt {
compatible = "regulator-fixed";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_reg_wl_bt>;
regulator-name = "wl-bt-pow-dwn";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio2 6 GPIO_ACTIVE_LOW>;
startup-delay-us = <70000>;
regulator-always-on;
};
};
&A53_0 {
cpu-supply = <&buck2>;
};
&A53_1 {
cpu-supply = <&buck2>;
};
&A53_2 {
cpu-supply = <&buck2>;
};
&A53_3 {
cpu-supply = <&buck2>;
};
&eqos {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_eqos>;
phy-mode = "rgmii-id";
phy-handle = <&ethphy0>;
snps,force_thresh_dma_mode;
status = "okay";
mdio {
compatible = "snps,dwmac-mdio";
#address-cells = <1>;
#size-cells = <0>;
ethphy0: ethernet-phy@3 {
compatible = "ethernet-phy-id0022.1640",
"ethernet-phy-ieee802.3-c22";
reg = <3>;
reset-gpios = <&gpio4 10 GPIO_ACTIVE_LOW>;
interrupt-parent = <&gpio1>;
interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
};
};
};
&flexspi {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_flexspi0>;
status = "okay";
flash0: flash@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <80000000>;
spi-tx-bus-width = <1>;
spi-rx-bus-width = <4>;
};
};
&i2c1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1>;
clock-frequency = <384000>;
status = "okay";
pmic@25 {
compatible = "nxp,pca9450c";
reg = <0x25>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio1>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
regulators {
buck1: BUCK1 {
regulator-name = "BUCK1";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <2187500>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <3125>;
};
buck2: BUCK2 {
regulator-name = "BUCK2";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <2187500>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <3125>;
nxp,dvs-run-voltage = <950000>;
nxp,dvs-standby-voltage = <850000>;
};
buck4: BUCK4 {
regulator-name = "BUCK4";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
buck5: BUCK5 {
regulator-name = "BUCK5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
buck6: BUCK6 {
regulator-name = "BUCK6";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <3400000>;
regulator-boot-on;
regulator-always-on;
};
ldo1: LDO1 {
regulator-name = "LDO1";
regulator-min-microvolt = <1600000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
ldo3: LDO3 {
regulator-name = "LDO3";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
ldo4: LDO4 {
regulator-name = "LDO4";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo5: LDO5 {
regulator-name = "LDO5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};
&i2c3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c3>;
clock-frequency = <384000>;
status = "okay";
eeprom@50 {
compatible = "atmel,24c64";
reg = <0x50>;
pagesize = <32>;
read-only; /* Manufacturing EEPROM programmed at factory */
};
rtc: rtc@51 {
compatible = "nxp,pcf85263";
reg = <0x51>;
quartz-load-femtofarads = <12500>;
};
};
&snvs_pwrkey {
status = "okay";
};
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
assigned-clocks = <&clk IMX8MP_CLK_UART1>;
assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_80M>;
uart-has-rtscts;
status = "okay";
};
&usdhc1 {
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-0 = <&pinctrl_usdhc1>;
pinctrl-1 = <&pinctrl_usdhc1_100mhz>;
pinctrl-2 = <&pinctrl_usdhc1_200mhz>;
bus-width = <4>;
vmmc-supply = <&reg_wl_bt>;
cap-sd-highspeed;
sd-uhs-sdr50;
sd-uhs-sdr104;
keep-power-in-suspend;
wakeup-source;
non-removable;
cap-power-off-card;
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
mwifiex: wifi@1 {
compatible = "marvell,sd8997";
reg = <1>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_wlan>;
interrupt-parent = <&gpio2>;
interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
};
};
&usdhc3 {
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";
};
&iomuxc {
pinctrl_eqos: eqosgrp {
fsl,pins = <
MX8MP_IOMUXC_ENET_MDC__ENET_QOS_MDC 0x2
MX8MP_IOMUXC_ENET_MDIO__ENET_QOS_MDIO 0x2
MX8MP_IOMUXC_ENET_RD0__ENET_QOS_RGMII_RD0 0x90
MX8MP_IOMUXC_ENET_RD1__ENET_QOS_RGMII_RD1 0x90
MX8MP_IOMUXC_ENET_RD2__ENET_QOS_RGMII_RD2 0x90
MX8MP_IOMUXC_ENET_RD3__ENET_QOS_RGMII_RD3 0x90
MX8MP_IOMUXC_ENET_RXC__CCM_ENET_QOS_CLOCK_GENERATE_RX_CLK 0x90
MX8MP_IOMUXC_ENET_RX_CTL__ENET_QOS_RGMII_RX_CTL 0x90
MX8MP_IOMUXC_ENET_TD0__ENET_QOS_RGMII_TD0 0x16
MX8MP_IOMUXC_ENET_TD1__ENET_QOS_RGMII_TD1 0x16
MX8MP_IOMUXC_ENET_TD2__ENET_QOS_RGMII_TD2 0x16
MX8MP_IOMUXC_ENET_TD3__ENET_QOS_RGMII_TD3 0x16
MX8MP_IOMUXC_ENET_TX_CTL__ENET_QOS_RGMII_TX_CTL 0x16
MX8MP_IOMUXC_ENET_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK 0x16
MX8MP_IOMUXC_SAI2_RXC__GPIO4_IO22 0x10
MX8MP_IOMUXC_GPIO1_IO10__GPIO1_IO10 0x10
>;
};
pinctrl_flexspi0: flexspi0grp {
fsl,pins = <
MX8MP_IOMUXC_NAND_ALE__FLEXSPI_A_SCLK 0x1c2
MX8MP_IOMUXC_NAND_CE0_B__FLEXSPI_A_SS0_B 0x82
MX8MP_IOMUXC_NAND_DATA00__FLEXSPI_A_DATA00 0x82
MX8MP_IOMUXC_NAND_DATA01__FLEXSPI_A_DATA01 0x82
MX8MP_IOMUXC_NAND_DATA02__FLEXSPI_A_DATA02 0x82
MX8MP_IOMUXC_NAND_DATA03__FLEXSPI_A_DATA03 0x82
>;
};
pinctrl_i2c1: i2c1grp {
fsl,pins = <
MX8MP_IOMUXC_I2C1_SCL__I2C1_SCL 0x400001c2
MX8MP_IOMUXC_I2C1_SDA__I2C1_SDA 0x400001c2
>;
};
pinctrl_i2c3: i2c3grp {
fsl,pins = <
MX8MP_IOMUXC_I2C3_SCL__I2C3_SCL 0x400001c2
MX8MP_IOMUXC_I2C3_SDA__I2C3_SDA 0x400001c2
>;
};
pinctrl_pmic: pmicgrp {
fsl,pins = <
MX8MP_IOMUXC_GPIO1_IO03__GPIO1_IO03 0x1c0
>;
};
pinctrl_reg_wl_bt: reg-wl-btgrp {
fsl,pins = <
MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 0x40
>;
};
pinctrl_uart1: uart1grp {
fsl,pins = <
MX8MP_IOMUXC_UART1_RXD__UART1_DCE_RX 0x140
MX8MP_IOMUXC_UART1_TXD__UART1_DCE_TX 0x140
MX8MP_IOMUXC_UART3_RXD__UART1_DCE_CTS 0x140
MX8MP_IOMUXC_UART3_TXD__UART1_DCE_RTS 0x140
>;
};
pinctrl_usdhc1: usdhc1grp {
fsl,pins = <
MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK 0x190
MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD 0x1d0
MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0 0x1d0
MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1 0x1d0
MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2 0x1d0
MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3 0x1d0
>;
};
pinctrl_usdhc1_100mhz: usdhc1-100mhzgrp {
fsl,pins = <
MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK 0x194
MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD 0x1d4
MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0 0x1d4
MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1 0x1d4
MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2 0x1d4
MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3 0x1d4
>;
};
pinctrl_usdhc1_200mhz: usdhc1-200mhzgrp {
fsl,pins = <
MX8MP_IOMUXC_SD1_CLK__USDHC1_CLK 0x196
MX8MP_IOMUXC_SD1_CMD__USDHC1_CMD 0x1d6
MX8MP_IOMUXC_SD1_DATA0__USDHC1_DATA0 0x1d6
MX8MP_IOMUXC_SD1_DATA1__USDHC1_DATA1 0x1d6
MX8MP_IOMUXC_SD1_DATA2__USDHC1_DATA2 0x1d6
MX8MP_IOMUXC_SD1_DATA3__USDHC1_DATA3 0x1d6
>;
};
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 0x166
>;
};
pinctrl_wlan: wlangrp {
fsl,pins = <
MX8MP_IOMUXC_SD1_DATA7__GPIO2_IO09 0x140
>;
};
};
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