[PATCH 1/3] usb: orion-echi: Add support for the Armada 3700

Hi Andrew,
 
 On mer., mars 08 2017, Andrew Lunn [off-list ref] wrote:

Hi Gregory

[...]

Thanks for your comments I will fix the typos and the wording.

quoted

+#define USB_SBUSCFG		0x90
+#define	    USB_SBUSCFG_BAWR	    0x6
+#define	    USB_SBUSCFG_BARD	    0x3
+#define	    USB_SBUSCFG_AHBBRST	    0x0

These three are all shifts. So i would suggest adding _SHIFT to the
end.

Actually I removed it to fit in the 80 character...

quoted

+
+/* BAWR = BARD = 3 : Align read/write bursts packets larger than 128 bytes */
+#define USB_SBUSCFG_BAWR_ALIGN_128B	0x3
+#define USB_SBUSCFG_BARD_ALIGN_128B	0x3
+/* AHBBRST = 3	   : Align AHB Burst to INCR16 (64 bytes) */
+#define USB_SBUSCFG_AHBBRST_INCR16	0x3

You can then apply the shift here.

... but I didn't think to this trick. 

quoted

+
+#define USB_SBUSCFG_DEF_VAL ((USB_SBUSCFG_BAWR_ALIGN_128B << USB_SBUSCFG_BAWR) \
+		     | (USB_SBUSCFG_BARD_ALIGN_128B << USB_SBUSCFG_BARD) \
+		     | (USB_SBUSCFG_AHBBRST_INCR16 << USB_SBUSCFG_AHBBRST))

and this is then shorted.

So I will do it in the v2.

Thanks

Gregory

    Andrew

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com