From: Sascha Hauer <s.hauer@pengutronix.de>
To: Jules Maselbas <jmaselbas@kalray.eu>
Cc: Barebox List <barebox@lists.infradead.org>,
Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: Re: [PATCH v4 02/13] usb: dwc2: Add host controller driver
Date: Fri, 14 Aug 2020 08:21:03 +0200 [thread overview]
Message-ID: <20200814062103.GC13023@pengutronix.de> (raw)
In-Reply-To: <20200811151637.17705-3-jmaselbas@kalray.eu>
Hi Jules,
On Tue, Aug 11, 2020 at 05:16:26PM +0200, Jules Maselbas wrote:
> +
> +static int transfer_chunk(struct dwc2 *dwc2, u8 hc,
> + u8 *pid, int in, void *buffer, int num_packets,
> + int xfer_len, int *actual_len, int odd_frame)
> +{
> + uint32_t hctsiz, hcchar, sub;
> + dma_addr_t dma_addr;
> + int ret = 0;
> +
> + dma_addr = dma_map_single(dwc2->dev, buffer, xfer_len,
> + in ? DMA_FROM_DEVICE : DMA_TO_DEVICE);
> +
> + dwc2_dbg(dwc2, "chunk: pid=%d xfer_len=%u pkts=%u dma_addr=%pad\n",
> + *pid, xfer_len, num_packets, (void *)dma_addr);
> +
> + dwc2_writel(dwc2, dma_addr, HCDMA(hc));
> +
> + hctsiz = (xfer_len << TSIZ_XFERSIZE_SHIFT)
> + | (1 << TSIZ_PKTCNT_SHIFT)
> + | (*pid << TSIZ_SC_MC_PID_SHIFT);
Any reason to ignore num_packets here and hardcode 1 to the packet
count? This breaks transfers > 512 bytes in my case.
Sascha
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next prev parent reply other threads:[~2020-08-14 6:21 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-11 15:16 [PATCH v4 00/13] usb: dwc2: Add host and gadget driver Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 01/13] Revert "usb: Add dwc2 host driver" Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 02/13] usb: dwc2: Add host controller driver Jules Maselbas
2020-08-14 6:21 ` Sascha Hauer [this message]
2020-08-14 8:15 ` Jules Maselbas
2020-08-14 13:12 ` Sascha Hauer
2020-08-11 15:16 ` [PATCH v4 03/13] usb: dwc2: host: Read dr_mode from device tree Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 04/13] usb: dwc2: Rework roothub interface Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 05/13] usb: dwc2: Rework timeout Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 06/13] usb: dwc2: host: Handle dma mapping errors Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 07/13] usb: dwc2: host: Dynamic fifo size support from Linux Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 08/13] usb: dwc2: host: Fix toggle reset Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 09/13] usb: dwc2: host: Rewrite dwc2_hc_init Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 10/13] usb: dwc2: Add function to flush tx fifo Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 11/13] usb: dwc2: Add structure for gadget driver Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 12/13] usb: dwc2: Add " Jules Maselbas
2020-08-11 15:16 ` [PATCH v4 13/13] usb: dwc2: Use register_otg_device Jules Maselbas
2020-08-14 13:12 ` [PATCH v4 00/13] usb: dwc2: Add host and gadget driver Sascha Hauer
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