board/lego/ev3: update to 4.14 kernel and 2017.11 U-Boot
This updates the LEGO MINDSTORMS EV3 board to Linux kernel 4.14 and U-Boot 2017.11. * Kernel patches are dropped because they are in mainline now. * This caused the kernel image to be >3M so some adjustments to the image sizes/layout needed to be made in U-Boot. * Updated U-Boot version bumped since we are touching this config anyway Signed-off-by: David Lechner <david@lechnology.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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@ -20,13 +20,13 @@ image flash.bin {
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}
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partition uimage {
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image = "uImage.da850-lego-ev3"
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size = 3M
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size = 4M
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offset = 0x50000
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}
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partition rootfs {
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image = "rootfs.squashfs"
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size = 9600K
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offset = 0x350000
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size = 10M
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offset = 0x450000
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}
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}
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@ -54,3 +54,9 @@ CONFIG_SQUASHFS=y
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CONFIG_SQUASHFS_LZ4=y
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CONFIG_SQUASHFS_LZO=y
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CONFIG_SQUASHFS_XZ=y
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CONFIG_DRM=y
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CONFIG_DRM_TILCDC=n
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CONFIG_DRM_DUMB_VGA_DAC=n
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CONFIG_DRM_TINYDRM=y
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CONFIG_TINYDRM_ST7586=y
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CONFIG_FB_DA8XX=n
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@ -1,56 +0,0 @@
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From 8a81ff173c5c9a0ab1df84fab17971dbcce8490a Mon Sep 17 00:00:00 2001
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From: David Lechner <david@lechnology.com>
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Date: Tue, 7 Feb 2017 13:22:07 -0600
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Subject: ARM: da850-lego-ev3: Add device tree node for A/DC
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This adds a node for the TI ADS7957 analog/digital converter on LEGO
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MINDSTORMS EV3 as well as a regulator node that is used by the A/DC node.
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Signed-off-by: David Lechner <david@lechnology.com>
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Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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---
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arch/arm/boot/dts/da850-lego-ev3.dts | 21 +++++++++++++++++++++
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1 file changed, 21 insertions(+)
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diff --git a/arch/arm/boot/dts/da850-lego-ev3.dts b/arch/arm/boot/dts/da850-lego-ev3.dts
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index 112ec92..0309537 100644
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--- a/arch/arm/boot/dts/da850-lego-ev3.dts
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+++ b/arch/arm/boot/dts/da850-lego-ev3.dts
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@@ -139,6 +139,19 @@
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enable-active-high;
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regulator-boot-on;
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};
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+
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+ /*
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+ * This is a simple voltage divider on VCC5V to provide a 2.5V
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+ * reference signal to the ADC.
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+ */
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+ adc_ref: regulator2 {
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+ compatible = "regulator-fixed";
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+ regulator-name = "adc ref";
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+ regulator-min-microvolt = <2500000>;
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+ regulator-max-microvolt = <2500000>;
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+ regulator-boot-on;
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+ vin-supply = <&vcc5v>;
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+ };
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};
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&pmx_core {
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@@ -293,6 +306,14 @@
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};
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};
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};
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+
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+ adc: adc@3 {
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+ compatible = "ti,ads7957";
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+ reg = <3>;
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+ #io-channel-cells = <1>;
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+ spi-max-frequency = <10000000>;
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+ vref-supply = <&adc_ref>;
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+ };
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};
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&gpio {
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--
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cgit v1.1
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@ -1,85 +0,0 @@
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From 7723d70bebd749ef24fef19db52d827c7fd7f858 Mon Sep 17 00:00:00 2001
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From: David Lechner <david@lechnology.com>
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Date: Tue, 7 Feb 2017 13:22:09 -0600
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Subject: ARM: da850-lego-ev3: Add device tree node for sound
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This adds a device tree node for sound on LEGO MINDSTORMS EV3. The EV3
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uses one of the SoC PWMs connected to an amplifier to create sound from
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a speaker.
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The PWM is passed through a low-pass filter, so it is actually possible
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to do PCM playback, but there is no existing driver, so just using
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pwm-beeper for now, since it is also a compatible mode of operation.
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Signed-off-by: David Lechner <david@lechnology.com>
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Signed-off-by: Sekhar Nori <nsekhar@ti.com>
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---
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arch/arm/boot/dts/da850-lego-ev3.dts | 31 +++++++++++++++++++++++++++++++
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1 file changed, 31 insertions(+)
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diff --git a/arch/arm/boot/dts/da850-lego-ev3.dts b/arch/arm/boot/dts/da850-lego-ev3.dts
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index 0309537..c20580a 100644
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--- a/arch/arm/boot/dts/da850-lego-ev3.dts
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+++ b/arch/arm/boot/dts/da850-lego-ev3.dts
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@@ -123,6 +123,14 @@
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pinctrl-0 = <&system_power_pin>;
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};
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+ sound {
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+ compatible = "pwm-beeper";
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&ehrpwm0b_pins>;
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+ pwms = <&ehrpwm0 1 1000000 0>;
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+ amp-supply = <&>;
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+ };
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+
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/*
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* This is a 5V current limiting regulator that is shared by USB,
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* the sensor (input) ports, the motor (output) ports and the A/DC.
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@@ -152,6 +160,18 @@
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regulator-boot-on;
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vin-supply = <&vcc5v>;
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};
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+
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+ /*
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+ * This is the amplifier for the speaker.
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+ */
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+ amp: regulator3 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&_pins>;
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+ compatible = "regulator-fixed";
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+ regulator-name = "amp";
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+ gpio = <&gpio 111 GPIO_ACTIVE_HIGH>;
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+ enable-active-high;
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+ };
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};
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&pmx_core {
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@@ -208,6 +228,13 @@
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0x4c 0x00008000 0x0000f000
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>;
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};
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+
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+ amp_pins: pinmux_amp_pins {
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+ pinctrl-single,bits = <
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+ /* GP6[15] */
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+ 0x34 0x00000008 0x0000000f
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+ >;
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+ };
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};
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&pinconf {
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@@ -316,6 +343,10 @@
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};
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};
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+&ehrpwm0 {
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+ status = "okay";
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+};
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+
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&gpio {
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status = "okay";
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};
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--
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cgit v1.1
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@ -0,0 +1,31 @@
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From cdd8d11858fa34f6e813fae46b5556e9fb3570dc Mon Sep 17 00:00:00 2001
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From: David Lechner <david@lechnology.com>
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Date: Sun, 19 Nov 2017 19:54:32 -0600
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Subject: [PATCH] configs: legoev3: increase flash image sizes
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This increases the kernel image to 4M and the rootfs image to 10M.
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It is getting hard to get a kernel image to fit in 3M and the rootfs image
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size now matches the filesyssize variable.
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Signed-off-by: David Lechner <david@lechnology.com>
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---
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include/configs/legoev3.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/include/configs/legoev3.h b/include/configs/legoev3.h
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index 79fa3c4..2eeaf85 100644
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--- a/include/configs/legoev3.h
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+++ b/include/configs/legoev3.h
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@@ -204,7 +204,7 @@
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"mmcargs=setenv bootargs mem=${memsize} console=${console} root=/dev/mmcblk0p2 rw rootwait lpj=747520\0" \
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"mmcboot=bootm ${loadaddr}\0" \
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"flashargs=setenv bootargs mem=${memsize} initrd=${filesysaddr},${filesyssize} root=/dev/ram0 rw rootfstype=squashfs console=${console} lpj=747520\0" \
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- "flashboot=sf probe 0; sf read ${loadaddr} 0x50000 0x300000; sf read ${filesysaddr} 0x350000 0x960000; bootm ${loadaddr}\0" \
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+ "flashboot=sf probe 0; sf read ${loadaddr} 0x50000 0x400000; sf read ${filesysaddr} 0x450000 0xA00000; bootm ${loadaddr}\0" \
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"loadimage=fatload mmc 0 ${loadaddr} uImage\0" \
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"loadbootscr=fatload mmc 0 ${bootscraddr} boot.scr\0" \
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"bootscript=source ${bootscraddr}\0" \
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--
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2.7.4
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BR2_TARGET_GENERIC_GETTY=y
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BR2_TARGET_GENERIC_GETTY_PORT="ttyS1"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="board/lego/ev3/post-image.sh"
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# Linux headers same as kernel, a 4.11 series
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BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_11=y
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# Linux headers same as kernel, a 4.14 series
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BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_14=y
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# Kernel
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BR2_LINUX_KERNEL=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.11"
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BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.14"
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BR2_LINUX_KERNEL_DEFCONFIG="davinci_all"
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BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/lego/ev3/linux.fragment"
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BR2_LINUX_KERNEL_UIMAGE_LOADADDR="0xc0008000"
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@ -36,7 +36,7 @@ BR2_TARGET_ROOTFS_SQUASHFS4_XZ=y
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BR2_TARGET_UBOOT=y
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BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
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BR2_TARGET_UBOOT_CUSTOM_VERSION=y
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BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2017.05"
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BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2017.11"
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BR2_TARGET_UBOOT_BOARD_DEFCONFIG="legoev3"
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# host
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