[PATCH V9 3/8] arm64: dts: sc7280: Configure SPI-NOR FLASH for sc7280-idp

From: Rajesh Patil
Date: Tue Sep 21 2021 - 06:39:54 EST


Add spi-nor flash node and pinctrl configurations for the SC7280 IDP.

Signed-off-by: Rajesh Patil <rajpat@xxxxxxxxxxxxxx>
Reviewed-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
---
Changes in V9:
- No changes

Changes in V8:
- No changes

arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
index 99f9ee5..37b8444 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
@@ -211,6 +211,20 @@
vcc-supply = <&vreg_l1c_1p8>;
};

+&qspi {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&qspi_clk>, <&qspi_cs0>, <&qspi_data01>;
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ spi-max-frequency = <37500000>;
+ spi-tx-bus-width = <2>;
+ spi-rx-bus-width = <2>;
+ };
+};
+
&qupv3_id_0 {
status = "okay";
};
@@ -288,6 +302,19 @@

/* PINCTRL - additions to nodes defined in sc7280.dtsi */

+&qspi_cs0 {
+ bias-disable;
+};
+
+&qspi_clk {
+ bias-disable;
+};
+
+&qspi_data01 {
+ /* High-Z when no transfers; nice to park the lines */
+ bias-pull-up;
+};
+
&qup_uart5_default {
tx {
pins = "gpio46";
--
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