Date: Tue, 16 Jun 2015 21:23:56 +0530 From: Pratik Singhal <ps06756@gmail.com> To: soc-status@freebsd.org, Luiz Otavio O Souza <loos.br@gmail.com> Subject: Status report for the project Improve support for Cubieboard Message-ID: <CAGf2gkPXasWmtYH6JK6=vVBuA5Ab9VTjYDwfqAMDXxhCmZCC2w@mail.gmail.com>
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Target for this week :- The target for this week was to get the code working which was written at the end of last week after understanding the working of DMA for MMC. Current Status :- The code written is currently working and I am able to receive DMA transfer interrupts. Both pio and DMA transfers are working. Although, I am encountering a kernel panic related to spin mutexes at the end of the DMA transfer. Strangely, No such panic is encountered when using pio to transfer data and when using DMA to transfer data during the kernel boot process. Target for next week :- The target for this week again is to get the written code working and removing this panic as soon as possible. Problems faced :- The main problem I faced this week, was not receiving interrupts even though I had correctly programmed the MMC controller. The culprit being a wrong macro value in a10_mmc.h file ! . Almost half of the week was over by the time I figured this out after browsing through linux-sunxi source. With mid term evaluations coming near, I think our project is in sync with the schedule provided and the code should be ready for testing by community by the end of this week. -- Regards, Pratik Singhal
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