[PATCH v2 5/5] rockchip: rock-pi-4: dts: spi: Make the index of the spi flash the same in SPL and U-Boot proper

[Xavier Drudis Ferran <xdrudis@tinet.cat>]

Spi0 is not needed in SPL and SPL could be a little smaller without it,
but then the SF_DEFAULT_BOOT would have to be 0 to refer to spi1, and
that's confusing, because once U-Boot proper runs, it numbers the bus 1.

Add spi0 to the pre-reloc and spl trees so that the flash is always
connected to bus 1.

Changes since v1:
   - new patch in v2.

Signed-off-by: Xavier Drudis Ferran <xdrudis@tinet.cat>

Cc: Simon Glass <sjg@chromium.org>
Cc: Philipp Tomsich <philipp.tomsich@vrull.eu>
Cc: Kever Yang <kever.yang@rock-chips.com>

---
 arch/arm/dts/rk3399-rock-pi-4-u-boot.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/dts/rk3399-rock-pi-4-u-boot.dtsi b/arch/arm/dts/rk3399-rock-pi-4-u-boot.dtsi
index 4c2fe8f6bc..68b6b752d6 100644
--- a/arch/arm/dts/rk3399-rock-pi-4-u-boot.dtsi
+++ b/arch/arm/dts/rk3399-rock-pi-4-u-boot.dtsi
@@ -16,6 +16,12 @@
 	regulator-init-microvolt = <950000>;
 };
 
+/* not needed, but nicer to keep SF_DEFAULT_BUS in SPL the same index as in U-Boot proper */
+&spi0 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
 &spi1 {
 	status = "okay";
 	spi-max-frequency = <40000000>;
-- 
2.20.1