On Fri, 18 Jun 2021 11:02:12 -0500
Robert Nelson [off-list ref] wrote:

Hi Paul,

On Thu, Jun 17, 2021 at 4:35 AM Paul Barker
[off-list ref] wrote:

quoted

This adds support for the Sancloud BBE Lite which shares a common
hardware base with the non-Lite version of the BBE.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
---
 arch/arm/boot/dts/Makefile                    |  1 +
 .../arm/boot/dts/am335x-sancloud-bbe-lite.dts | 51
+++++++++++++++++++ 2 files changed, 52 insertions(+)
 create mode 100644 arch/arm/boot/dts/am335x-sancloud-bbe-lite.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f8f09c5066e7..8629c941f573 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile

@@ -834,6 +834,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
        am335x-pocketbeagle.dtb \
        am335x-regor-rdk.dtb \
        am335x-sancloud-bbe.dtb \
+       am335x-sancloud-bbe-lite.dtb \
        am335x-shc.dtb \
        am335x-sbc-t335.dtb \
        am335x-sl50.dtb \

diff --git a/arch/arm/boot/dts/am335x-sancloud-bbe-lite.dts

b/arch/arm/boot/dts/am335x-sancloud-bbe-lite.dts new file mode
100644 index 000000000000..9c311bd106f6

--- /dev/null
+++ b/arch/arm/boot/dts/am335x-sancloud-bbe-lite.dts

@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2012 Texas Instruments Incorporated -

http://www.ti.com/
+ * Copyright (C) 2021 SanCloud Ltd
+ */
+/dts-v1/;
+
+#include "am33xx.dtsi"
+#include "am335x-bone-common.dtsi"
+#include "am335x-boneblack-common.dtsi"
+#include "am335x-sancloud-bbe-common.dtsi"
+
+/ {
+       model = "SanCloud BeagleBone Enhanced Lite";
+       compatible = "sancloud,am335x-boneenhanced",
+                    "ti,am335x-bone-black",
+                    "ti,am335x-bone",
+                    "ti,am33xx";
+};
+
+&am33xx_pinmux {
+       bb_spi0_pins: pinmux_bb_spi0_pins {
+               pinctrl-single,pins = <
+                       AM33XX_PADCONF(AM335X_PIN_SPI0_SCLK,
PIN_INPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_SPI0_D0,
PIN_INPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_SPI0_D1,
PIN_INPUT, MUX_MODE0)
+                       AM33XX_PADCONF(AM335X_PIN_SPI0_CS0,
PIN_INPUT, MUX_MODE0)
+               >;
+       };
+};
+
+&spi0 {
+       #address-cells = <1>;
+       #size-cells = <0>;
+
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&bb_spi0_pins>;
+
+       channel@0 {
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               compatible = "micron,spi-authenta";
+               symlink = "spi/0.0";  

Sorry, this "symlink" is an undocumented "feature" of the
BeagleBoard.org tree.. We use it to help "identity" spi/usart/i2c
nodes names when they dynamically change node numbers based on kernel
versions or even 'drivers'....

https://github.com/beagleboard/customizations/blob/master/etc/udev/rules.d/10-of-symlink.rules

For 'mainline' we need to remove it..

Ok, that's a straightforward change. I'll send an updated patch series
later in the week.

Thanks,

-- 
Paul Barker
Principal Software Engineer
SanCloud Ltd