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From: Sebastian Reichel <sebastian.reichel@collabora.com>
To: Mark Brown <broonie@kernel.org>, Rob Herring <robh+dt@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>, Ian Ray <ian.ray@ge.com>,
	linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
	devicetree@vger.kernel.org, kernel@collabora.com,
	Sebastian Reichel <sebastian.reichel@collabora.com>
Subject: [PATCHv4 4/6] ARM: dts: imx53-ppd: Fix ACHC entry
Date: Wed,  9 Jun 2021 17:12:33 +0200	[thread overview]
Message-ID: <20210609151235.48964-5-sebastian.reichel@collabora.com> (raw)
In-Reply-To: <20210609151235.48964-1-sebastian.reichel@collabora.com>

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>
---
 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 be040b6a02fa..1f3ee60fb102 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";
@@ -314,16 +320,13 @@ &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 = <&reg_3v3>;
+		vdda-supply = <&reg_3v3>;
+		clocks = <&achc_24M>;
+		reset-gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
 	};
 
 	gpioxra0: gpio@2 {
-- 
2.30.2


  parent reply	other threads:[~2021-06-09 15:13 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-09 15:12 [PATCHv4 0/6] GE Healthcare PPD firmware upgrade driver for ACHC Sebastian Reichel
2021-06-09 15:12 ` [PATCHv4 1/6] spi: add ancillary device support Sebastian Reichel
2021-06-11  9:06   ` Greg Kroah-Hartman
2021-06-11 17:22     ` Sebastian Reichel
2021-06-13 14:18   ` Andy Shevchenko
2021-06-17 12:51   ` Mark Brown
2021-06-09 15:12 ` [PATCHv4 2/6] spi: dt-bindings: support devices with multiple chipselects Sebastian Reichel
2021-06-09 15:12 ` [PATCHv4 3/6] dt-bindings: misc: ge-achc: Convert to DT schema format Sebastian Reichel
2021-06-10 16:41   ` Rob Herring
2021-06-09 15:12 ` Sebastian Reichel [this message]
2021-06-09 15:12 ` [PATCHv4 5/6] misc: nxp-ezport: introduce EzPort support Sebastian Reichel
2021-06-11  9:05   ` Greg Kroah-Hartman
2021-06-11  9:45     ` Greg Kroah-Hartman
2021-06-09 15:12 ` [PATCHv4 6/6] misc: gehc-achc: new driver Sebastian Reichel
2021-06-11  9:02   ` Greg Kroah-Hartman
2021-06-22 15:14 ` (subset) [PATCHv4 0/6] GE Healthcare PPD firmware upgrade driver for ACHC Mark Brown

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