arm64: dts: ti: k3-am62a7-sk: Fix DDR size to full 4GB

[ Upstream commit a1bc0d6084dba8a31831c65318a8a8e46f00906f ]

All revisions of AM62A7-SK board have 4GB LPDDR4 Micron
MT53E2G32D4DE-046 AUT:B memory. Commit 38c4a08c820c ("arm64: dts: ti:
Add support for AM62A7-SK") enabled just 2GB due to a schematics error
in early revision of the board. Fix it by enabling full 4GB available on
the platform.

Design docs: https://www.ti.com/lit/zip/sprr459

Fixes: 38c4a08c820c ("arm64: dts: ti: Add support for AM62A7-SK")
Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20230314094645.3411599-1-devarsht@ti.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 576dbce..b08a083 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -26,8 +26,9 @@
 
        memory@80000000 {
                device_type = "memory";
-               /* 2G RAM */
-               reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
+               /* 4G RAM */
+               reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
+                     <0x00000008 0x80000000 0x00000000 0x80000000>;
        };
 
        reserved-memory {