From: Sebastian Reichel sebastian.reichel@collabora.com
[ Upstream commit cd7cd5b716d594e27a933c12f026d4f2426d7bf4 ]
PPD has only one ACHC device, which effectively is a Kinetis microcontroller. It has one SPI interface used for normal communication. Additionally it's possible to flash the device firmware using NXP's EzPort protocol by correctly driving a second chip select pin and the device reset pin.
Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Link: https://lore.kernel.org/r/20210802172309.164365-3-sebastian.reichel@collabor... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/imx53-ppd.dts | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-)
diff --git a/arch/arm/boot/dts/imx53-ppd.dts b/arch/arm/boot/dts/imx53-ppd.dts index 5ff9a179c83c..c80d1700e094 100644 --- a/arch/arm/boot/dts/imx53-ppd.dts +++ b/arch/arm/boot/dts/imx53-ppd.dts @@ -70,6 +70,12 @@ cko2_11M: sgtl-clock-cko2 { clock-frequency = <11289600>; };
+ achc_24M: achc-clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <24000000>; + }; + sgtlsound: sound { compatible = "fsl,imx53-cpuvo-sgtl5000", "fsl,imx-audio-sgtl5000"; @@ -287,16 +293,13 @@ &gpio4 11 GPIO_ACTIVE_LOW &gpio4 12 GPIO_ACTIVE_LOW>; status = "okay";
- spidev0: spi@0 { - compatible = "ge,achc"; - reg = <0>; - spi-max-frequency = <1000000>; - }; - - spidev1: spi@1 { - compatible = "ge,achc"; - reg = <1>; - spi-max-frequency = <1000000>; + spidev0: spi@1 { + compatible = "ge,achc", "nxp,kinetis-k20"; + reg = <1>, <0>; + vdd-supply = <®_3v3>; + vdda-supply = <®_3v3>; + clocks = <&achc_24M>; + reset-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>; };
gpioxra0: gpio@2 {