* [PATCH v2 1/3] dt-bindings: Add vendor prefix for Rakuten Kobo, Inc.
2019-03-31 19:15 [PATCH v2 0/3] ARM: Initial devicetree for Kobo Aura Jonathan Neuschäfer
@ 2019-03-31 19:16 ` Jonathan Neuschäfer
2019-03-31 19:16 ` [PATCH v2 2/3] dt-bindings: arm: fsl: Add i.MX50 based boards Jonathan Neuschäfer
2019-03-31 19:16 ` [PATCH v2 3/3] ARM: dts: imx50: Add Kobo Aura DTS Jonathan Neuschäfer
2 siblings, 0 replies; 5+ messages in thread
From: Jonathan Neuschäfer @ 2019-03-31 19:16 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Rob Herring, Mark Rutland, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Manivannan Sadhasivam, Aisheng Dong, Jonathan Neuschäfer,
Vokáč Michal, Thierry Reding, Kevin Hilman,
Heiko Stuebner, Jagan Teki, Martin Blumenstingl, Johan Hovold,
devicetree
Rakuten Kobo, Inc. (formerly Kobo, Inc.) is a company that sells e-book
readers and related products. More information is available at:
- https://en.wikipedia.org/wiki/Kobo_Inc.
- https://www.kobo.com/
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Rob Herring <robh@kernel.org>
---
v2:
- Add Rob Herring's R-b
v1:
https://lore.kernel.org/lkml/20190319152421.16179-2-j.neuschaefer@gmx.net/
---
Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 8162b0eb4b50..6cc50f1fac1c 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -210,6 +210,7 @@ kiebackpeter Kieback & Peter GmbH
kinetic Kinetic Technologies
kingdisplay King & Display Technology Co., Ltd.
kingnovel Kingnovel Technology Co., Ltd.
+kobo Rakuten Kobo Inc.
koe Kaohsiung Opto-Electronics Inc.
kosagi Sutajio Ko-Usagi PTE Ltd.
kyo Kyocera Corporation
--
2.20.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v2 2/3] dt-bindings: arm: fsl: Add i.MX50 based boards
2019-03-31 19:15 [PATCH v2 0/3] ARM: Initial devicetree for Kobo Aura Jonathan Neuschäfer
2019-03-31 19:16 ` [PATCH v2 1/3] dt-bindings: Add vendor prefix for Rakuten Kobo, Inc Jonathan Neuschäfer
@ 2019-03-31 19:16 ` Jonathan Neuschäfer
2019-04-06 6:05 ` Rob Herring
2019-03-31 19:16 ` [PATCH v2 3/3] ARM: dts: imx50: Add Kobo Aura DTS Jonathan Neuschäfer
2 siblings, 1 reply; 5+ messages in thread
From: Jonathan Neuschäfer @ 2019-03-31 19:16 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Rob Herring, Mark Rutland, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Manivannan Sadhasivam, Aisheng Dong, Jonathan Neuschäfer,
Vokáč Michal, Thierry Reding, Kevin Hilman,
Heiko Stuebner, Jagan Teki, Martin Blumenstingl, Johan Hovold,
devicetree
fsl,imx50-evk has been used in a devicetree for a while. kobo,aura will
be used soon.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
---
v2: New patch, as suggested by Shawn Guo
---
Documentation/devicetree/bindings/arm/fsl.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 7e2cd6ad26bd..618bf58796eb 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -51,6 +51,13 @@ properties:
- const: i2se,duckbill-2
- const: fsl,imx28
+ - description: i.MX50 based Boards
+ items:
+ - enum:
+ - fsl,imx50-evk
+ - kobo,aura
+ - const: fsl,imx50
+
- description: i.MX51 Babbage Board
items:
- enum:
--
2.20.1
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH v2 3/3] ARM: dts: imx50: Add Kobo Aura DTS
2019-03-31 19:15 [PATCH v2 0/3] ARM: Initial devicetree for Kobo Aura Jonathan Neuschäfer
2019-03-31 19:16 ` [PATCH v2 1/3] dt-bindings: Add vendor prefix for Rakuten Kobo, Inc Jonathan Neuschäfer
2019-03-31 19:16 ` [PATCH v2 2/3] dt-bindings: arm: fsl: Add i.MX50 based boards Jonathan Neuschäfer
@ 2019-03-31 19:16 ` Jonathan Neuschäfer
2 siblings, 0 replies; 5+ messages in thread
From: Jonathan Neuschäfer @ 2019-03-31 19:16 UTC (permalink / raw)
To: linux-arm-kernel
Cc: Rob Herring, Mark Rutland, Shawn Guo, Sascha Hauer,
Pengutronix Kernel Team, Fabio Estevam, NXP Linux Team,
Manivannan Sadhasivam, Aisheng Dong, Jonathan Neuschäfer,
Vokáč Michal, Thierry Reding, Kevin Hilman,
Heiko Stuebner, Jagan Teki, Martin Blumenstingl, Johan Hovold,
devicetree
The Kobo Aura is an e-book reader released in 2013.
With the devicetree in its current state, the kernel will boot and run
for about ten seconds. To solve this, the embedded controller needs to
be told that the system should stay powered on. This will be done in a
later patchset.
- The IOMUXC mode bits for the SD interfaces were taken from the
vendor's U-Boot fork.
- The bus width of the eMMC is 4 bits in the vendor kernel, but I
achieved better performance with 8 bits.
- The SDIO clock frequency for the WiFi chip is 25MHz in the vendor
kernel, but the WiFi chip (BCM43362) supports 50MHz, which works
reliably on this board and gives slightly better performance.
- The I2C pins' IOMUXC settings come from the vendor's U-Boot fork.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
---
v2:
- Squash patch 4 ("ARM: dts: imx50-kobo-aura: Enable USB support")
- Sort pinctrl nodes alphabetically, as suggested by Shawn Guo
- Sort labeled nodes alphabetically, as suggested by Shawn Guo
- Make "status" the last property, as suggested by Shawn Guo
- Use KEY_RESERVED and EV_SW, as suggested by Shawn Guo
- Remove newlines between properties, as suggested by Shawn Guo
v1:
https://lore.kernel.org/lkml/20190319152421.16179-3-j.neuschaefer@gmx.net/
---
arch/arm/boot/dts/Makefile | 3 +-
arch/arm/boot/dts/imx50-kobo-aura.dts | 258 ++++++++++++++++++++++++++
2 files changed, 260 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/boot/dts/imx50-kobo-aura.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f4f5aeaf3298..0c85156c552b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -363,7 +363,8 @@ dtb-$(CONFIG_SOC_IMX35) += \
imx35-eukrea-mbimxsd35-baseboard.dtb \
imx35-pdk.dtb
dtb-$(CONFIG_SOC_IMX50) += \
- imx50-evk.dtb
+ imx50-evk.dtb \
+ imx50-kobo-aura.dtb
dtb-$(CONFIG_SOC_IMX51) += \
imx51-apf51.dtb \
imx51-apf51dev.dtb \
diff --git a/arch/arm/boot/dts/imx50-kobo-aura.dts b/arch/arm/boot/dts/imx50-kobo-aura.dts
new file mode 100644
index 000000000000..a0eaf869b913
--- /dev/null
+++ b/arch/arm/boot/dts/imx50-kobo-aura.dts
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2019 Jonathan Neuschäfer
+//
+// The Kobo Aura e-book reader, model N514. The mainboard is marked as E606F0B.
+
+/dts-v1/;
+#include "imx50.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+ model = "Kobo Aura (N514)";
+ compatible = "kobo,aura", "fsl,imx50";
+
+ chosen {
+ stdout-path = "serial1:115200n8";
+ };
+
+ memory@70000000 {
+ device_type = "memory";
+ reg = <0x70000000 0x10000000>;
+ };
+
+ gpio-leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_leds>;
+
+ on {
+ label = "kobo_aura:orange:on";
+ gpios = <&gpio6 24 GPIO_ACTIVE_LOW>;
+ panic-indicator;
+ };
+ };
+
+ gpio-keys {
+ compatible = "gpio-keys";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpiokeys>;
+
+ power {
+ label = "Power Button";
+ gpios = <&gpio4 10 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_POWER>;
+ };
+
+ hallsensor {
+ label = "Hallsensor";
+ gpios = <&gpio5 15 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_RESERVED>;
+ linux,input-type = <EV_SW>;
+ };
+
+ frontlight {
+ label = "Frontlight";
+ gpios = <&gpio4 1 GPIO_ACTIVE_LOW>;
+ linux,code = <KEY_DISPLAYTOGGLE>;
+ };
+ };
+
+ sd2_pwrseq: pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sd2_reset>;
+ reset-gpios = <&gpio4 17 GPIO_ACTIVE_LOW>;
+ };
+
+ sd2_vmmc: gpio-regulator {
+ compatible = "regulator-gpio";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sd2_vmmc>;
+ regulator-name = "vmmc";
+ states = <3300000 0>;
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ enable-gpio = <&gpio4 12 GPIO_ACTIVE_LOW>;
+ startup-delay-us = <100000>;
+ };
+};
+
+&esdhc1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sd1>;
+ max-frequency = <50000000>;
+ bus-width = <4>;
+ cd-gpios = <&gpio5 17 GPIO_ACTIVE_LOW>;
+ disable-wp;
+ status = "okay";
+
+ /* External µSD card */
+};
+
+&esdhc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sd2>;
+ bus-width = <4>;
+ max-frequency = <50000000>;
+ disable-wp;
+ mmc-pwrseq = <&sd2_pwrseq>;
+ vmmc-supply = <&sd2_vmmc>;
+ status = "okay";
+
+ /* CyberTan WC121 SDIO WiFi (BCM43362) */
+};
+
+&esdhc3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_sd3>;
+ bus-width = <8>;
+ non-removable;
+ max-frequency = <50000000>;
+ disable-wp;
+ status = "okay";
+
+ /* Internal eMMC */
+};
+
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c1>;
+ status = "okay";
+
+ /* TODO: ektf2132 touch controller at 0x15 */
+};
+
+&i2c2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c2>;
+ status = "okay";
+
+ /* TODO: TPS65185 PMIC for E Ink at 0x68 */
+};
+
+&i2c3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c3>;
+ status = "okay";
+
+ /* TODO: embedded controller at 0x43 */
+};
+
+&iomuxc {
+ pinctrl_gpiokeys: gpiokeys {
+ fsl,pins = <
+ MX50_PAD_CSPI_MISO__GPIO4_10 0x0
+ MX50_PAD_SD2_D7__GPIO5_15 0x0
+ MX50_PAD_KEY_ROW0__GPIO4_1 0x0
+ >;
+ };
+
+ pinctrl_i2c1: i2c1 {
+ fsl,pins = <
+ MX50_PAD_I2C1_SCL__I2C1_SCL 0x400001fd
+ MX50_PAD_I2C1_SDA__I2C1_SDA 0x400001fd
+ >;
+ };
+
+ pinctrl_i2c2: i2c2 {
+ fsl,pins = <
+ MX50_PAD_I2C2_SCL__I2C2_SCL 0x400001fd
+ MX50_PAD_I2C2_SDA__I2C2_SDA 0x400001fd
+ >;
+ };
+
+ pinctrl_i2c3: i2c3 {
+ fsl,pins = <
+ MX50_PAD_I2C3_SCL__I2C3_SCL 0x400001fd
+ MX50_PAD_I2C3_SDA__I2C3_SDA 0x400001fd
+ >;
+ };
+
+ pinctrl_leds: leds {
+ fsl,pins = <
+ MX50_PAD_PWM1__GPIO6_24 0x0
+ >;
+ };
+
+ pinctrl_sd1: sd1 {
+ fsl,pins = <
+ MX50_PAD_SD1_CMD__ESDHC1_CMD 0x1e4
+ MX50_PAD_SD1_CLK__ESDHC1_CLK 0xd4
+ MX50_PAD_SD1_D0__ESDHC1_DAT0 0x1d4
+ MX50_PAD_SD1_D1__ESDHC1_DAT1 0x1d4
+ MX50_PAD_SD1_D2__ESDHC1_DAT2 0x1d4
+ MX50_PAD_SD1_D3__ESDHC1_DAT3 0x1d4
+
+ MX50_PAD_SD2_CD__GPIO5_17 0x0
+ >;
+ };
+
+ pinctrl_sd2: sd2 {
+ fsl,pins = <
+ MX50_PAD_SD2_CMD__ESDHC2_CMD 0x1e4
+ MX50_PAD_SD2_CLK__ESDHC2_CLK 0xd4
+ MX50_PAD_SD2_D0__ESDHC2_DAT0 0x1d4
+ MX50_PAD_SD2_D1__ESDHC2_DAT1 0x1d4
+ MX50_PAD_SD2_D2__ESDHC2_DAT2 0x1d4
+ MX50_PAD_SD2_D3__ESDHC2_DAT3 0x1d4
+ >;
+ };
+
+ pinctrl_sd2_reset: sd2-reset {
+ fsl,pins = <
+ MX50_PAD_ECSPI2_MOSI__GPIO4_17 0x0
+ >;
+ };
+
+ pinctrl_sd2_vmmc: sd2-vmmc {
+ fsl,pins = <
+ MX50_PAD_ECSPI1_SCLK__GPIO4_12 0x0
+ >;
+ };
+
+ pinctrl_sd3: sd3 {
+ fsl,pins = <
+ MX50_PAD_SD3_CMD__ESDHC3_CMD 0x1e4
+ MX50_PAD_SD3_CLK__ESDHC3_CLK 0xd4
+ MX50_PAD_SD3_D0__ESDHC3_DAT0 0x1d4
+ MX50_PAD_SD3_D1__ESDHC3_DAT1 0x1d4
+ MX50_PAD_SD3_D2__ESDHC3_DAT2 0x1d4
+ MX50_PAD_SD3_D3__ESDHC3_DAT3 0x1d4
+ MX50_PAD_SD3_D4__ESDHC3_DAT4 0x1d4
+ MX50_PAD_SD3_D5__ESDHC3_DAT5 0x1d4
+ MX50_PAD_SD3_D6__ESDHC3_DAT6 0x1d4
+ MX50_PAD_SD3_D7__ESDHC3_DAT7 0x1d4
+ >;
+ };
+
+ pinctrl_uart2: uart2 {
+ fsl,pins = <
+ MX50_PAD_UART2_TXD__UART2_TXD_MUX 0x1e4
+ MX50_PAD_UART2_RXD__UART2_RXD_MUX 0x1e4
+ >;
+ };
+
+ pinctrl_usbphy: usbphy {
+ fsl,pins = <
+ MX50_PAD_ECSPI2_SS0__GPIO4_19 0x0
+ >;
+ };
+};
+
+&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_uart2>;
+ status = "okay";
+};
+
+&usbotg {
+ phy_type = "utmi_wide";
+ dr_mode = "peripheral";
+ status = "okay";
+};
+
+&usbphy0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usbphy>;
+ vbus-detect-gpio = <&gpio4 19 GPIO_ACTIVE_LOW>;
+};
--
2.20.1
^ permalink raw reply related [flat|nested] 5+ messages in thread