Thread (18 messages) 18 messages, 4 authors, 2019-01-25

[PATCH v3 08/10] ARM64: dts: marvell: armada-37xx: fix USB2 memory region

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STALE2824d SUPERSEDED

From: Miquel Raynal <miquel.raynal@bootlin.com>
Date: 2019-01-21 11:23:34
Also in: linux-devicetree, linux-usb
Subsystem: arm/marvell kirkwood and armada 370, 375, 38x, 39x, xp, 3700, 7k/8k, cn9130 soc support, the rest · Maintainers: Andrew Lunn, Gregory Clement, Sebastian Hesselbarth, Linus Torvalds

Revision v3 of 3 in this series.

Revisions (3)
  1. v2 [diff vs current]
  2. v3 current
  3. v4 [diff vs current]
The specification splits the USB2 memory region into three sections:
1/ 0xD005E000-0xD005EFFF: USB2 Host Controller Registers
2/ 0xD005F000-0xD005F7FF: USB2 UTMI PHY Registers
3/ 0xD005F800-0xD005FFFF: USB2 Host Miscellaneous Registers

Section 1/ belongs to the USB2 node but section 2/ belongs to the UTMI
PHY node. Section 3/ can be accessed by both the USB controller and
the PHY because of the miscaellaneous nature of the registers inside
so a specific node will be created to cover the area and a handle to
it will be added in both the USB controller and the PHY node.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
 arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index d6e548618a95..5cfd1b920f31 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -351,7 +351,7 @@
 
 			usb2: usb@5e000 {
 				compatible = "marvell,armada-3700-ehci";
-				reg = <0x5e000 0x2000>;
+				reg = <0x5e000 0x1000>;
 				interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
 				status = "disabled";
 			};
-- 
2.19.1


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