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* [xenomai-images][PATCH 1/1][REV 1] Enable RTDM SPI on BeagleBone Black
@ 2020-11-11 19:38 Deniz Uğur
  0 siblings, 0 replies; only message in thread
From: Deniz Uğur @ 2020-11-11 19:38 UTC (permalink / raw)
  To: Xenomai

From dbc3add6bb3130d40602d3144d152acc0e0e3bd9 Mon Sep 17 00:00:00 2001
From: Deniz Ugur <deniz343@gmail.com>
Date: Wed, 11 Nov 2020 22:23:03 +0300
Subject: [xenomai-images][PATCH 1/1][REV 1] Enable RTDM SPI on BeagleBone Black
To: xenomai@xenomai.org
Cc: quirin.gylstorff@siemens.com

---
recipes-core/customizations/customizations.bb | 9 +-
recipes-core/customizations/files/post-bbb | 5 +
...01-BeagleBone-Black-RTDM-SPI-enabled.patch | 110 ++++++++++++++++++
recipes-kernel/linux/files/bbb.cfg | 28 +++++
recipes-kernel/linux/linux-xenomai.inc | 9 +-
5 files changed, 159 insertions(+), 2 deletions(-)
create mode 100644 recipes-core/customizations/files/post-bbb
create mode 100644 recipes-kernel/linux/files/0001-BeagleBone-Black-RTDM-SPI-enabled.patch
create mode 100644 recipes-kernel/linux/files/bbb.cfg

diff --git a/recipes-core/customizations/customizations.bb b/recipes-core/customizations/customizations.bb
index e35c0a5..ecfd1d0 100644
--- a/recipes-core/customizations/customizations.bb
+++ b/recipes-core/customizations/customizations.bb
@@ -13,10 +13,17 @@ inherit dpkg-raw

DESCRIPTION = "demo image customizations"

+def is_bbb(d):
+ bbb = d.getVar('MACHINE') or ''
+ if bbb == 'beagle-bone-black':
+ return "file://post-bbb"
+ return ""
+
SRC_URI = " \
file://postinst \
file://ethernet \
- file://99-silent-printk.conf"
+ file://99-silent-printk.conf \
+ ${@is_bbb(d)}"

DEBIAN_DEPENDS = "passwd"

diff --git a/recipes-core/customizations/files/post-bbb b/recipes-core/customizations/files/post-bbb
new file mode 100644
index 0000000..9befbcf
--- /dev/null
+++ b/recipes-core/customizations/files/post-bbb
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+# Disable HDMI in order to enable SPI1 on BeagleBone Black
+echo "enable_uboot_overlays=1" >> /boot/uEnv.txt
+echo "disable_uboot_overlay_video=1" >> /boot/uEnv.txt
\ No newline at end of file
diff --git a/recipes-kernel/linux/files/0001-BeagleBone-Black-RTDM-SPI-enabled.patch b/recipes-kernel/linux/files/0001-BeagleBone-Black-RTDM-SPI-enabled.patch
new file mode 100644
index 0000000..3b8b542
--- /dev/null
+++ b/recipes-kernel/linux/files/0001-BeagleBone-Black-RTDM-SPI-enabled.patch
@@ -0,0 +1,110 @@
+From 1badee8e16340d063f8bff04c39c9fd3d6749a8f Mon Sep 17 00:00:00 2001
+From: Deniz Ugur <deniz343@gmail.com>
+Date: Mon, 9 Nov 2020 20:19:49 +0300
+Subject: [PATCH] BeagleBone Black RTDM SPI enabled
+
+---
+ arch/arm/boot/dts/am335x-bone-common.dtsi | 2 +
+ arch/arm/boot/dts/am335x-boneblack-spi.dtsi | 77 +++++++++++++++++++++
+ 2 files changed, 79 insertions(+)
+ create mode 100644 arch/arm/boot/dts/am335x-boneblack-spi.dtsi
+
+diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
+index 73b514ddd..91ccc0f4b 100644
+--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
++++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
+@@ -6,6 +6,8 @@
+ * published by the Free Software Foundation.
+ */
+ 
++#include "am335x-boneblack-spi.dtsi"
++
+ / {
+ cpus {
+ cpu@0 {
+diff --git a/arch/arm/boot/dts/am335x-boneblack-spi.dtsi b/arch/arm/boot/dts/am335x-boneblack-spi.dtsi
+new file mode 100644
+index 000000000..47485af64
+--- /dev/null
++++ b/arch/arm/boot/dts/am335x-boneblack-spi.dtsi
+@@ -0,0 +1,77 @@
++&am33xx_pinmux {
++ spi0_pins: pinmux_spi0_pins {
++ pinctrl-single,pins = <
++ /* This output signal is also used as a re-timing input. */
++ 0x150 0x30 /* P9_22 spi0_sclk, INPUT_PULLUP | MODE0 */
++ 0x154 0x30 /* P9_21 spi0_d0, INPUT_PULLUP | MODE0 */
++ 0x158 0x10 /* P9_18 spi0_d1, OUTPUT_PULLUP | MODE0 */
++ 0x15c 0x10 /* P9_17 spi0_cs0, OUTPUT_PULLUP | MODE0 */
++ >;
++ };
++
++ spi1_pins: pinmux_spi1_pins {
++ pinctrl-single,pins = <
++ /* This output signal is also used as a re-timing input. */
++ 0x190 0x33 /* P9_31 spi1_sclk, INPUT_PULLUP | MODE3 */
++ 0x194 0x33 /* P9_29 spi1_d0, INPUT_PULLUP | MODE3 */
++ 0x198 0x13 /* P9_30 spi1_d1, OUTPUT_PULLUP | MODE3 */
++ 0x19c 0x13 /* P9_28 spi1_cs0, OUTPUT_PULLUP | MODE3 */
++ 0x164 0x12 /* P9_42 spi1_cs1 OUTPUT_PULLUP | MODE2 */
++ >;
++ };
++};
++
++&spi0 {
++ compatible = "ti,omap4-mcspi";
++ #address-cells = <0x1>;
++ #size-cells = <0x0>;
++ reg = <0x48030000 0x400>;
++ interrupts = <0x41>;
++ ti,spi-num-cs = <0x2>;
++ ti,hwmods = "spi0";
++ dmas = <0x27 0x10 0x0 0x27 0x11 0x0 0x27 0x12 0x0 0x27 0x13 0x0>;
++ dma-names = "tx0", "rx0", "tx1", "rx1";
++ status = "okay";
++ pinctrl-names = "default";
++ pinctrl-0 = <&spi0_pins>;
++
++ channel0@0 {
++ #address-cells = <0x1>;
++ #size-cells = <0x0>;
++ compatible = "rtdm-spidev";
++ reg = <0x0>;
++ spi-max-frequency = <0x1312d00>;
++ };
++};
++
++&spi1 {
++ compatible = "ti,omap4-mcspi";
++ #address-cells = <0x1>;
++ #size-cells = <0x0>;
++ reg = <0x481a0000 0x400>;
++ interrupts = <0x7d>;
++ ti,spi-num-cs = <0x2>;
++ ti,hwmods = "spi1";
++ dmas = <0x27 0x2a 0x0 0x27 0x2b 0x0 0x27 0x2c 0x0 0x27 0x2d 0x0>;
++ dma-names = "tx0", "rx0", "tx1", "rx1";
++ status = "okay";
++ pinctrl-names = "default";
++ pinctrl-0 = <&spi1_pins>;
++
++ channel1@0 {
++ #address-cells = <0x1>;
++ #size-cells = <0x0>;
++ compatible = "rtdm-spidev";
++ reg = <0x0>;
++ spi-max-frequency = <0x1312d00>;
++ };
++
++ channel1@1 {
++ #address-cells = <0x1>;
++ #size-cells = <0x0>;
++ compatible = "rtdm-spidev";
++ reg = <0x1>;
++ spi-max-frequency = <0x1312d00>;
++ };
++
++};
+\ No newline at end of file
+-- 
+2.17.1
\ No newline at end of file
diff --git a/recipes-kernel/linux/files/bbb.cfg b/recipes-kernel/linux/files/bbb.cfg
new file mode 100644
index 0000000..5e2a112
--- /dev/null
+++ b/recipes-kernel/linux/files/bbb.cfg
@@ -0,0 +1,28 @@
+# Disable conflicting drivers
+CONFIG_XENO_DRIVERS_SPI_BCM2835=n
+CONFIG_XENO_DRIVERS_SPI_SUN6I=n
+CONFIG_SPI_ATMEL=n
+CONFIG_SPI_BCM2835=n
+CONFIG_SPI_BCM2835AUX=n
+CONFIG_SPI_BCM_QSPI=n
+CONFIG_SPI_BITBANG=n
+CONFIG_SPI_CADENCE=n
+CONFIG_SPI_DAVINCI=n
+CONFIG_SPI_GPIO=n
+CONFIG_SPI_FSL_DSPI=n
+CONFIG_SPI_OMAP24XX=n
+CONFIG_SPI_ORION=n
+CONFIG_SPI_PL022=n
+CONFIG_SPI_ROCKCHIP=n
+CONFIG_SPI_RSPI=n
+CONFIG_SPI_S3C64XX=n
+CONFIG_SPI_SH_MSIOF=n
+CONFIG_SPI_SH_HSPI=n
+CONFIG_SPI_SIRF=n
+CONFIG_SPI_SUN4I=n
+CONFIG_SPI_SUN6I=n
+CONFIG_SPI_TEGRA114=n
+CONFIG_SPI_TEGRA20_SFLASH=n
+CONFIG_SPI_TEGRA20_SLINK=n
+CONFIG_SPI_XILINX=n
+CONFIG_SPI_SPIDEV=n
\ No newline at end of file
diff --git a/recipes-kernel/linux/linux-xenomai.inc b/recipes-kernel/linux/linux-xenomai.inc
index 185b60b..ddc698b 100644
--- a/recipes-kernel/linux/linux-xenomai.inc
+++ b/recipes-kernel/linux/linux-xenomai.inc
@@ -13,7 +13,14 @@ require recipes-kernel/linux/linux-custom.inc

KERNEL_DEFCONFIG ?= "${DISTRO_ARCH}_defconfig"

-SRC_URI += "file://${KERNEL_DEFCONFIG}"
+def is_bbb(d):
+ bbb = d.getVar('MACHINE') or ''
+ if bbb == 'beagle-bone-black':
+ return "file://0001-BeagleBone-Black-RTDM-SPI-enabled.patch file://bbb.cfg"
+ return ""
+
+SRC_URI += "file://${KERNEL_DEFCONFIG} \
+ ${@is_bbb(d)}"

DEPENDS += "xenomai-kernel-source"
KBUILD_DEPENDS += "xenomai-kernel-source"
-- 
2.17.1




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2020-11-11 19:38 [xenomai-images][PATCH 1/1][REV 1] Enable RTDM SPI on BeagleBone Black Deniz Uğur

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