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zero-sugar dts: add wifi-pwrseq to cycle the WIFI_RE signal during initation 

Replace original sdhci power cycle config with new wifi-pwrseq config.

Also disable extra muxing of SD1_WP pad to output CLKO2 32K wifi sleep clock (disable 32K sleep clock) and force 100 MHz
MMC bus speed while debugging load/sleep/wakeup issues.
pull/10/head
Steinar Bakkemo 2019-06-11 19:53:42 +02:00
parent 3f3a81fca7
commit c5bd291a90
1 changed files with 13 additions and 24 deletions
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37
arch/arm/boot/dts/zero-sugar.dts
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@ -81,23 +81,12 @@
regulator-max-microvolt = <1800000>;
};
reg_sd1_vmmc: regulator-sd1-vmmc {
compatible = "regulator-fixed";
regulator-name = "VDD_SD1";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
gpio = <&gpio5 2 GPIO_ACTIVE_HIGH>;
startup-delay-us = <200000>;
off-on-delay = <20000>;
enable-active-high;
};
/*usdhc2_pwrseq: usdhc2_pwrseq {
compatible = "mmc-pwrseq-simple";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_brcm_reg>;
reset-gpios = <&gpio4 21 GPIO_ACTIVE_LOW>;
};*/
wifi_pwrseq: wifi_pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
/*clocks = <&clks IMX6SL_CLK_OSC>;
clock-names = "ext_clock";*/
};
};
&cpu0 {
@ -495,13 +484,13 @@
&usdhc2 {
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default", "state_100mhz", "state_200mhz";
pinctrl-names = "default", "state_100mhz";/*, "state_200mhz";*/
pinctrl-0 = <&pinctrl_usdhc2 &pinctrl_wifi>;
pinctrl-1 = <&pinctrl_usdhc2_100mhz &pinctrl_wifi>;
pinctrl-2 = <&pinctrl_usdhc2_200mhz &pinctrl_wifi>;
/*mmc-pwrseq = <&wifi_pwrseq>;*/
/*pinctrl-2 = <&pinctrl_usdhc2_200mhz &pinctrl_wifi>;*/
mmc-pwrseq = <&wifi_pwrseq>;
bus-width = <4>;
/* enable-sdio-wakeup; */
enable-sdio-wakeup;
non-removable;
disable-wp;
wifi-host;
@ -509,8 +498,8 @@
cap-power-off-card;
status = "okay";
brcmf: bcrmf@1 {
reg = <1>;
brcmf: bcrmf@0 {
reg = <0>;
compatible = "brcm,bcm4329-fmac";
interrupt-parent = <&gpio1>;
interrupts = <8 IRQ_TYPE_NONE>;
@ -729,7 +718,7 @@
/* WiFi Host Wake */
MX7D_PAD_GPIO1_IO08__GPIO1_IO8 0x00000014
/* WiFi Sleep 32k */
MX7D_PAD_SD1_WP__CCM_CLKO2 0x00000014
/*MX7D_PAD_SD1_WP__CCM_CLKO2 0x00000014*/
>;
};
};