diff options
| author | Javier Martinez Canillas <javier.martinez@collabora.co.uk> | 2015-02-27 00:08:51 +0300 |
|---|---|---|
| committer | Kukjin Kim <kgene@kernel.org> | 2015-02-27 00:08:51 +0300 |
| commit | 3cb18180e8e06dea06cd2b601895f42beaf00052 (patch) | |
| tree | 64174d9ee5d22b4dccf61669c7d7ba9c653601ae /arch/arm/boot/dts/exynos5800-peach-pi.dts | |
| parent | af6ad88acbd66ddfe31066ebcf1e02f848ec406c (diff) | |
| download | linux-3cb18180e8e06dea06cd2b601895f42beaf00052.tar.xz | |
ARM: dts: Add WiFi module support for Peach boards
Peach Pit and Pi boards have a WiFi module that is always powered
but needs toggling an enable pin and ungating a 32kHz reference
clock as part of their power sequencing.
Add a dev node for the SDIO slot and a MMC power sequence provider.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/exynos5800-peach-pi.dts')
| -rw-r--r-- | arch/arm/boot/dts/exynos5800-peach-pi.dts | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts index ca73fb2d2da5..9db2b5927821 100644 --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts @@ -119,6 +119,13 @@ power-supply = <&tps65090_fet6>; backlight = <&backlight>; }; + + mmc1_pwrseq: mmc1_pwrseq { + compatible = "mmc-pwrseq-simple"; + reset-gpios = <&gpx0 0 GPIO_ACTIVE_LOW>; /* WIFI_EN */ + clocks = <&max77802 MAX77802_CLK_32K_CP>; + clock-names = "ext_clock"; + }; }; &adc { @@ -653,6 +660,25 @@ bus-width = <8>; }; +&mmc_1 { + status = "okay"; + num-slots = <1>; + broken-cd; + cap-sdio-irq; + card-detect-delay = <200>; + clock-frequency = <400000000>; + samsung,dw-mshc-ciu-div = <1>; + samsung,dw-mshc-sdr-timing = <0 1>; + samsung,dw-mshc-ddr-timing = <0 2>; + pinctrl-names = "default"; + pinctrl-0 = <&sd1_clk>, <&sd1_cmd>, <&sd1_int>, <&sd1_bus1>, + <&sd1_bus4>, <&sd1_bus8>, <&wifi_en>; + bus-width = <4>; + cap-sd-highspeed; + mmc-pwrseq = <&mmc1_pwrseq>; + vqmmc-supply = <&buck10_reg>; +}; + &mmc_2 { status = "okay"; num-slots = <1>; @@ -672,6 +698,13 @@ pinctrl-names = "default"; pinctrl-0 = <&mask_tpm_reset>; + wifi_en: wifi-en { + samsung,pins = "gpx0-0"; + samsung,pin-function = <1>; + samsung,pin-pud = <0>; + samsung,pin-drv = <0>; + }; + max98091_irq: max98091-irq { samsung,pins = "gpx0-2"; samsung,pin-function = <0>; @@ -759,6 +792,29 @@ }; }; +&pinctrl_1 { + /* Adjust WiFi drive strengths lower for EMI */ + sd1_clk: sd1-clk { + samsung,pin-drv = <2>; + }; + + sd1_cmd: sd1-cmd { + samsung,pin-drv = <2>; + }; + + sd1_bus1: sd1-bus-width1 { + samsung,pin-drv = <2>; + }; + + sd1_bus4: sd1-bus-width4 { + samsung,pin-drv = <2>; + }; + + sd1_bus8: sd1-bus-width8 { + samsung,pin-drv = <2>; + }; +}; + &pinctrl_2 { pmic_dvs_2: pmic-dvs-2 { samsung,pins = "gpj4-2"; |