21 Sep
2015
21 Sep
'15
7:31 p.m.
On 09/21/2015 11:13 AM, Fabio Estevam wrote:
Hi Stephen,
On Wed, Jun 11, 2014 at 7:03 PM, Stephen Warren swarren@wwwdotorg.org wrote:
From: Stephen Warren swarren@nvidia.com
This allows SPI Flash to be programmed using DFU.
Signed-off-by: Stephen Warren swarren@nvidia.com
Is this still working in mainline U-boot?
I haven't tested SF support recently (only MMC). However, it should still work:-) Are you using ci_udc? If so, make sure you have this very recent patch:
commit b337b3b2a53f112a217f4bd31307b02f830bb787 Author: Stephen Warren swarren@nvidia.com Date: Fri Sep 11 17:10:02 2015 -0600
usb: ci_udc: fix emissions of ZLPs Commit 6a132416359e "ci_udc: Update the ci_udc driver to support bulk transfers" caused the value of "len" to change without updating subsquent users of that variable in ci_ep_submit_next_request(). This caused the code that detects when to emit ZLPs (Zero Length Packets) never to trigger, which in turn caused host timeouts when a ZLP was required, which in turn broke tests/dfu/, even despite the assertion in that commit's description that "These changes are tested for both the DFU and lthor." Fix this by modifying the added dtd iteration code not to modify "len", but rather to keep state in a separate variable. Rename the variables while we're at it so they describe their purpose better. Fixes: 6a132416359e ("ci_udc: Update the ci_udc driver to support bulk transfers") Cc: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>