From: Claudiu Beznea claudiu.beznea@microchip.com
[ Upstream commit 9b5dcc8d427e2bcb84c49eb03ffefe11e7537a55 ]
Due to strobe signal not being propagated from CPU to securam the securam needs to be mapped as device or strongly ordered memory to work properly. Otherwise, updating to one offset may affect the adjacent locations in securam.
Fixes: d4ce5f44d4409 ("ARM: dts: at91: sama5d2: Add securam node") Signed-off-by: Claudiu Beznea claudiu.beznea@microchip.com Signed-off-by: Alexandre Belloni alexandre.belloni@bootlin.com Acked-by: Nicolas Ferre nicolas.ferre@microchip.com Link: https://lore.kernel.org/r/1606903025-14197-3-git-send-email-claudiu.beznea@m... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/sama5d2.dtsi | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi index a8e4b89097d9c..8a09c2eab0f97 100644 --- a/arch/arm/boot/dts/sama5d2.dtsi +++ b/arch/arm/boot/dts/sama5d2.dtsi @@ -1243,6 +1243,7 @@ clocks = <&securam_clk>; #address-cells = <1>; #size-cells = <1>; + no-memory-wc; ranges = <0 0xf8044000 0x1420>; };