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https://github.com/brain-hackers/u-boot-brain
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5877de9165
IIUC, interrupt transfers are NAK'd by devices until they wish to trigger an interrupt, and e.g. EHCI controllers retry these in HW until they are ACK'd. However, DWC2 doesn't seem to retry, so we need to do this in SW. In practice, I've seen DWC2_HCINT_FRMOVRUN happen too. I'm not quite sure what this error implies; perhaps it's related to how near the end of a USB frame we're at when the interrupt transfer is initiated? Anyway, retrying this temporary error seems to be necessary too. With all these commits applied, both my USB keyboards (one LS Lenovo and one FS Dell) work correctly when there is no USB hub between the SoC and the keyboard; We still need split transactions to be implemented for hubs to work. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> |
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| .. | ||
| dwc2.c | ||
| dwc2.h | ||
| ehci-armada100.c | ||
| ehci-atmel.c | ||
| ehci-exynos.c | ||
| ehci-faraday.c | ||
| ehci-fsl.c | ||
| ehci-hcd.c | ||
| ehci-marvell.c | ||
| ehci-mpc512x.c | ||
| ehci-mx5.c | ||
| ehci-mx6.c | ||
| ehci-mxc.c | ||
| ehci-mxs.c | ||
| ehci-omap.c | ||
| ehci-pci.c | ||
| ehci-ppc4xx.c | ||
| ehci-rmobile.c | ||
| ehci-spear.c | ||
| ehci-sunxi.c | ||
| ehci-tegra.c | ||
| ehci-uniphier.c | ||
| ehci-vct.c | ||
| ehci-zynq.c | ||
| ehci.h | ||
| isp116x-hcd.c | ||
| isp116x.h | ||
| Kconfig | ||
| Makefile | ||
| ohci-at91.c | ||
| ohci-da8xx.c | ||
| ohci-ep93xx.c | ||
| ohci-hcd.c | ||
| ohci-s3c24xx.c | ||
| ohci-s3c24xx.h | ||
| ohci.h | ||
| r8a66597-hcd.c | ||
| r8a66597.h | ||
| sl811-hcd.c | ||
| sl811.h | ||
| utmi-armada100.c | ||
| xhci-exynos5.c | ||
| xhci-keystone.c | ||
| xhci-mem.c | ||
| xhci-omap.c | ||
| xhci-pci.c | ||
| xhci-ring.c | ||
| xhci-uniphier.c | ||
| xhci.c | ||
| xhci.h | ||