u-boot.git/drivers/usb, branch v2010.12-rc1

Coding Style cleanup

2010-10-27T20:48:30Z

Signed-off-by: Wolfgang Denk

ehci-hcd.c: fix hanging under higher load

2010-10-22T19:44:37Z

This patch solves a problem with USB hanging under higher load on a i.MX31 board. It falls into class of typical USB problems and fixes: if you don't understand the real cause, add a delay somewhere. The problem appeared after introduction of ELF relocation, which results in smaller code, which appears to run faster (probably because it fits better in the cache); turning off the instruction cache, adding debug printf()s and increasing the delay have all been found to make the problem go away. Moving the original "udelay(1)" up in the code to it's new place made the problem appear much less frequently. Increasing the delay to 2 microseconds then made the code run reliably in all (hour-long) tests. To be on the safe side, we set it to 5 microseconds here. Signed-off-by: Heiko schocher Signed-off-by: Wolfgang Denk Cc: Remy Bohmer Cc: Stefano Babic

usb: musb: constify a bit

2010-10-22T19:41:46Z

These ep and root hub structures need not be writable. Signed-off-by: Mike Frysinger

USB: fix Queue Element Transfer Descriptor changes

2010-10-22T19:41:45Z

Commit 3ed1607 "USB: sync Queue Element Transfer Descriptor against EHCI spec" added an "__attribute__ ((aligned (32)))" to the declaration of struct qTD, as used for example in the Linux kernel as well. However, it turns out that this attribute causes errors in "usb start" (like "ERROR: NOT USB_CONFIG_DESC 7b" and similar). Drop the attribute again. Signed-off-by: Wolfgang Denk Cc: Dan Lykowski Cc: Remy Bohmer Cc: Stefano Babic

ehci-pci: print hccr, hcor and hc_lenght

2010-10-22T19:41:45Z

It is useful to know the EHCI-PCI hccr, hcor and hc_lenght to make sure it was successfully registered, and at the correct location. Signed-off-by: Florian Fainelli

USB: sync Queue Element Transfer Descriptor against EHCI spec

2010-10-19T22:23:57Z

Appendix B "EHCI 64-Bit Data Structures" of the "Enhanced Host Controller Interface Specification for Universal Serial Bus" (Rev. 1.0, March 12, 2002) defines additional fields which were missing in U-Boot's struct qTD; as these are also present in recent versions of struct ehci_qtd in the Linux kernel, we add them here, too. This fixes some nasty memory corruption problems. Reported-by: Dan Lykowski See http://permalink.gmane.org/gmane.comp.boot-loaders.u-boot/76942 Signed-off-by: Wolfgang Denk Cc: Remy Bohmer Cc: Dan Lykowski Cc: Stefano Babic Tested-by: Stefano Babic

Merge branch 'master' of git://git.denx.de/u-boot-imx

2010-10-19T18:58:16Z

Conflicts: board/logicpd/imx31_litekit/config.mk boards.cfg Signed-off-by: Wolfgang Denk

MPC5121: Add USB EHCI support

2010-10-18T20:33:32Z

Signed-off-by: Francesco Rendine Signed-off-by: Damien Dusha Signed-off-by: Anatolij Gustschin Coding style cleanup; slight file restructuring. Signed-off-by: Wolfgang Denk Acked-by: Remy Bohmer

MX31: add delay between USB port setup and reset

2010-10-18T13:21:36Z

Sometimes a usb tree is not popolated after a system reset. It seems a delay is required after setting the USB ports for the MX.31 before resetting the ehci controller. Signed-off-by: Stefano Babic

Merge branch 'master' of git://git.denx.de/u-boot-imx

2010-10-17T17:57:38Z