[PATCH v3 2/3] arm: dts: am335x-sancloud-bbe-lite: UEFI SPI export

Paul Barker
2022-09-21T16:06:47Z

Add properties to the Authenta SPI flash device node to enable access by
a UEFI application using a fixed GUID. Also specify that this device is
JEDEC compatible so that it is correctly initialized when running
`sf probe`.

Signed-off-by: Paul Barker <paul.barker@sancloud.com>
---
arch/arm/dts/am335x-sancloud-bbe-lite.dts | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/arm/dts/am335x-sancloud-bbe-lite.dts b/arch/arm/dts/am335x-sancloud-bbe-lite.dts
index d6ef19311a91..f1ff9d6024cb 100644
--- a/arch/arm/dts/am335x-sancloud-bbe-lite.dts
+++ b/arch/arm/dts/am335x-sancloud-bbe-lite.dts
@@ -37,14 +37,20 @@
pinctrl-names = "default";
pinctrl-0 = <&bb_spi0_pins>;

- channel@0 {
+ authenta-flash@0 {
#address-cells = <1>;
#size-cells = <0>;

- compatible = "micron,spi-authenta";
+ compatible = "micron,spi-authenta", "jedec,spi-nor";

reg = <0>;
spi-max-frequency = <16000000>;
spi-cpha;
+
+ uefi-spi-vendor = "micron";
+ uefi-spi-part-number = "mt25ql128abb";
+ /* GUID in UEFI format: 77126730-a4ca-4386-b341-881fe18e7f7d */
+ uefi-spi-io-guid = [30 67 12 77 ca a4 86 43
+ b3 41 88 1f e1 8e 7f 7d];
};
};
--
2.25.1