arm: dts: k3-am654: add needed regs to udmap nodes

There are a few missing registers ranges in the udmap nodes
need to properly setup DMA for the am65x.

A fix has been added to the Linux kernel [0] to add these ranges and
merged. To keep DMA operational until the next DT sync from Linux, these
ranges were added to the *-u-boot.dtsi in the upstream u-boot [1].

Porting these DMA changes to ti-u-boot as these are needed for ICSSG
Ethernet driver to work.

And additional config register was added to the ringacc node in upstream
u-boot as part of DT sync from linux 6.7-rc1 [2]. Porting those changes
as well to ti-u-boot as those are also needed for ICSSG Ethernet driver to
work.

[0] https://lore.kernel.org/r/20231213135138.929517-2-vigneshr@ti.com
[1] https://source.denx.de/u-boot/u-boot/-/commit/5e00547e583f6d4349f3908d3491bf6ce0a8818c
[2] https://source.denx.de/u-boot/u-boot/-/commit/4dbdc84754ea2ad392ef7328da6d429cd8fd3c0a

Signed-off-by: MD Danish Anwar <danishanwar@ti.com>

3 files changed, 41 insertions, 4 deletions

diff --git a/arch/arm/dts/k3-am65-main.dtsi b/arch/arm/dts/k3-am65-main.dtsi
index ba4e5d3e1e..634d447925 100644
--- a/arch/arm/dts/k3-am65-main.dtsi
+++ b/arch/arm/dts/k3-am65-main.dtsi
@@ -603,8 +603,9 @@
 			reg =	<0x0 0x3c000000 0x0 0x400000>,
 				<0x0 0x38000000 0x0 0x400000>,
 				<0x0 0x31120000 0x0 0x100>,
-				<0x0 0x33000000 0x0 0x40000>;
-			reg-names = "rt", "fifos", "proxy_gcfg", "proxy_target";
+				<0x0 0x33000000 0x0 0x40000>,
+				<0x0 0x31080000 0x0 0x40000>;
+			reg-names = "rt", "fifos", "proxy_gcfg", "proxy_target", "cfg";
 			ti,num-rings = <818>;
 			ti,sci-rm-range-gp-rings = <0x1>; /* GP ring range */
 			ti,sci = <&dmsc>;
diff --git a/arch/arm/dts/k3-am65-mcu.dtsi b/arch/arm/dts/k3-am65-mcu.dtsi
index c93ff1520a..ab7f206185 100644
--- a/arch/arm/dts/k3-am65-mcu.dtsi
+++ b/arch/arm/dts/k3-am65-mcu.dtsi
@@ -129,8 +129,10 @@
 			reg =	<0x0 0x2b800000 0x0 0x400000>,
 				<0x0 0x2b000000 0x0 0x400000>,
 				<0x0 0x28590000 0x0 0x100>,
-				<0x0 0x2a500000 0x0 0x40000>;
-			reg-names = "rt", "fifos", "proxy_gcfg", "proxy_target";
+				<0x0 0x2a500000 0x0 0x40000>,
+				<0x0 0x28440000 0x0 0x40000>;
+			reg-names = "rt", "fifos", "proxy_gcfg",
+				    "proxy_target", "cfg";
 			ti,num-rings = <286>;
 			ti,sci-rm-range-gp-rings = <0x1>; /* GP ring range */
 			ti,sci = <&dmsc>;
diff --git a/arch/arm/dts/k3-am654-base-board-u-boot.dtsi b/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
index e4cbc47c2a..64f34bdee1 100644
--- a/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
+++ b/arch/arm/dts/k3-am654-base-board-u-boot.dtsi
@@ -81,3 +81,37 @@
 &mcu_r5fss0 {
 	ti,cluster-mode = <0>;
 };
+
+/*
+ * The DMA driver requires a few extra register ranges
+ * which are missing for the am65x. A patch has been
+ * sent and merged to linux and will be synced with
+ * upstream u-boot in the next DT sync.
+ */
+&main_udmap {
+	reg = <0x0 0x31150000 0x0 0x100>,
+	      <0x0 0x34000000 0x0 0x100000>,
+	      <0x0 0x35000000 0x0 0x100000>,
+	      <0x0 0x30b00000 0x0 0x10000>,
+	      <0x0 0x30c00000 0x0 0x10000>,
+	      <0x0 0x30d00000 0x0 0x8000>;
+	reg-names = "gcfg", "rchanrt", "tchanrt",
+		    "tchan", "rchan", "rflow";
+};
+
+/*
+ * The DMA driver requires a few extra register ranges
+ * which are missing for the am65x. A patch has been
+ * sent and merged to linux and will be synced with
+ * upstream u-boot in the next DT sync.
+ */
+&mcu_udmap {
+	reg = <0x0 0x285c0000 0x0 0x100>,
+	      <0x0 0x2a800000 0x0 0x40000>,
+	      <0x0 0x2aa00000 0x0 0x40000>,
+	      <0x0 0x284a0000 0x0 0x4000>,
+	      <0x0 0x284c0000 0x0 0x4000>,
+	      <0x0 0x28400000 0x0 0x2000>;
+	reg-names = "gcfg", "rchanrt", "tchanrt",
+		    "tchan", "rchan", "rflow";
+};