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ARM: dts: dra7-evm: Add wilink8 wlan support 

The wilink module is a combo wireless connectivity sdio
card based on Texas Instrument's wl18xx solution. It is a
4-wire, 1.8V, embedded sdio wlan device with an external
irq line and is power-controlled by a gpio-based fixed
regulator.

Add pinmux configuration and IODelay values for MMC4.
On dra7-evm, MMC4 is used for connecting to wilink module.

IODelay data credits to :  Vishal Mahaveer <vishalm@ti.com>
and Sekhar Nori <nsekhar@ti.com>

Signed-off-by: Ido Yariv <ido@wizery.com>
Signed-off-by: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Hari Nagalla <hnagalla@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Hari Nagalla 2018-04-27 17:39:01 +05:30 committed by Tony Lindgren
parent 135eae49c6
commit fdcc50103c
2 changed files with 40 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
arch/arm/boot/dts/dra7-evm-common.dtsi
View File

@ -260,3 +260,18 @@
&pcie1_rc {
status = "okay";
};
&mmc4 {
bus-width = <4>;
cap-power-off-card;
keep-power-in-suspend;
non-removable;
#address-cells = <1>;
#size-cells = <0>;
wifi@2 {
compatible = "ti,wl1835";
reg = <2>;
interrupt-parent = <&gpio5>;
interrupts = <7 IRQ_TYPE_EDGE_RISING>;
};
};

25
arch/arm/boot/dts/dra7-evm.dts
View File

@ -96,6 +96,16 @@
regulator-boot-on;
};
vmmcwl_fixed: fixedregulator-mmcwl {
compatible = "regulator-fixed";
regulator-name = "vmmcwl_fixed";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
gpio = <&gpio5 8 0>;
startup-delay-us = <70000>;
enable-active-high;
};
extcon_usb2: extcon_usb2 {
compatible = "linux,extcon-usb-gpio";
id-gpio = <&pcf_gpio_21 2 GPIO_ACTIVE_HIGH>;
@ -376,6 +386,21 @@
pinctrl-5 = <&mmc2_pins_hs200 &mmc2_iodelay_hs200_rev20_conf>;
};
&mmc4 {
status = "okay";
vmmc-supply = <&evm_3v6>;
vqmmc-supply = <&vmmcwl_fixed>;
pinctrl-names = "default-rev11", "default", "hs-rev11", "hs", "sdr12-rev11", "sdr12", "sdr25-rev11", "sdr25";
pinctrl-0 = <&mmc4_pins_default &mmc4_iodelay_ds_rev11_conf>;
pinctrl-1 = <&mmc4_pins_default &mmc4_iodelay_ds_rev20_conf>;
pinctrl-2 = <&mmc4_pins_hs &mmc4_iodelay_sdr12_hs_sdr25_rev11_conf>;
pinctrl-3 = <&mmc4_pins_hs &mmc4_iodelay_sdr12_hs_sdr25_rev20_conf>;
pinctrl-4 = <&mmc4_pins_sdr12 &mmc4_iodelay_sdr12_hs_sdr25_rev11_conf>;
pinctrl-5 = <&mmc4_pins_sdr12 &mmc4_iodelay_sdr12_hs_sdr25_rev20_conf>;
pinctrl-6 = <&mmc4_pins_sdr25 &mmc4_iodelay_sdr12_hs_sdr25_rev11_conf>;
pinctrl-7 = <&mmc4_pins_sdr25 &mmc4_iodelay_sdr12_hs_sdr25_rev20_conf>;
};
&cpu0 {
vdd-supply = <&smps123_reg>;
};