arm: socfpga: sockit: Probe DWC2 UDC from OF instead of hard-coded data

This patch adds the necessary OF alias for the UDC node, which let's
the code locate the DWC2 UDC base address in OF instead of hard-coding
it into the U-Boot binary. The code is adjusted to use the address from
OF instead of the hard-coded one. Finally, the hard-coded address is
removed and USB DM support is enabled.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Lukasz Majewski <l.majewski@majess.pl>
Cc: Lukasz Majewski <l.majewski@samsung.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/arch/arm/dts/socfpga_cyclone5_sockit.dts b/arch/arm/dts/socfpga_cyclone5_sockit.dts
index d7c41c8..e45c2ab 100644
--- a/arch/arm/dts/socfpga_cyclone5_sockit.dts
+++ b/arch/arm/dts/socfpga_cyclone5_sockit.dts
@@ -14,9 +14,10 @@
 		bootargs = "console=ttyS0,115200";
 	};
 
- 	aliases {
+	aliases {
 		ethernet0 = &gmac1;
- 	};
+		udc0 = &usb1;
+	};
 
 	memory {
 		name = "memory";
@@ -90,3 +91,7 @@
 		tslch-ns = <4>;
 	};
 };
+
+&usb1 {
+	status = "okay";
+};