From 6ebf1725e1f0bf712f547de7d9d14066279bb546 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Thu, 31 Aug 2023 13:52:34 +0200
Subject: [PATCH] ARM: dts: renesas: marzen: Add FLASH node
Add a device node for the Spansion S29GL512N NOR FLASH on the Marzen
development board. This FLASH resides in the external address space of
the Local Bus State Controller.
Note that as the CFI-FLASH has a run-time conflict with CPU bring-up, it
will only be available when booting with SMP disabled.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/440ce3bb950c34fd57071b4eec83ad9643b682e5.1693481518.git.geert+renesas@glider.be
---
arch/arm/boot/dts/renesas/r8a7779-marzen.dts | 34 ++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/arch/arm/boot/dts/renesas/r8a7779-marzen.dts b/arch/arm/boot/dts/renesas/r8a7779-marzen.dts
index 08ea149b1ee6f..1e192b8a73a05 100644
--- a/arch/arm/boot/dts/renesas/r8a7779-marzen.dts
+++ b/arch/arm/boot/dts/renesas/r8a7779-marzen.dts
@@ -215,6 +215,35 @@
};
&lbsc {
+ flash@0 {
+ compatible = "cfi-flash";
+ reg = <0x0 0x04000000>;
+ pinctrl-0 = <&flash_pins>;
+ pinctrl-names = "default";
+ bank-width = <2>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "uboot";
+ reg = <0x00000000 0x00040000>;
+ read-only;
+ };
+ partition@40000 {
+ label = "uboot-env";
+ reg = <0x00040000 0x00040000>;
+ read-only;
+ };
+ partition@80000 {
+ label = "flash";
+ reg = <0x00080000 0x03f80000>;
+ };
+ };
+ };
+
ethernet@18000000 {
compatible = "smsc,lan89218", "smsc,lan9115";
reg = <0x18000000 0x100>;
@@ -266,6 +295,11 @@
};
};
+ flash_pins: flash {
+ groups = "lbsc_cs0";
+ function = "lbsc";
+ };
+
scif2_pins: scif2 {
groups = "scif2_data_c";
function = "scif2";
--
2.30.2