Re: [PATCH] USB: musb: allow unaligned memory data transfers

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Hello.

Gadiyar, Anand wrote:

From: Felipe Balbi wrote:
+	/* On MUSB:RTL1.8 and above, DMA has to be word aligned */
+	if ((dma_addr % 4) &&
+		(musb->hwvers >= MUSB_HWVERS_1800)) {
is it only inventra dma that suffers from this ? If not, we could move this check before even calling the dma routine.

Yes, it's only the integrated Inventra DMA that behaves like this.

Anyway, I don't think newer versions of the IP are being used by
anyone without the Inventra DMA. The older versions though are
sometimes used with external DMA controllers.

DA8xx/OMAP-L1x has MUSB version 1.800 and external, CPPI 4.1 DMA controller.

WBR, Sergei

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