Hi Andrew, On 10/24/2012 7:12 AM, Andrew Morton wrote: > On Sun, 14 Oct 2012 15:54:13 +0800 > Hein Tibosch <[email protected]> wrote: > >> The dw_dmac was originally developed for avr32 to be used with the Synopsys >> DesignWare AHB DMA controller. Starting from 2.6.38, access to the device's >> i/o >> memory was done with the little-endian readl/writel functions(1) >> >> This broke the driver for the avr32 platform, because it needs big (native) >> endian accessors. >> This patch makes the endianness configurable using 'DW_DMAC_BIG_ENDIAN_IO', >> which will default be true for AVR32 > Do we think this bug should be fixed in earlier kernel versions? > > If so, the patch might need to be tweaked for 3.6 and earlier, which > don't have the dma_read_byaddr() definition.
The 'bug' only affected avr32 (AP700x) users. I think there won't be much demand for it. Beside that, there were more breakages after 2.6.38, which have only recently been fixed in 3.7-rc1 These patches should then be back-ported as well: http://www.spinics.net/lists/linux-mmc/msg16104.html http://www.gossamer-threads.com/lists/linux/kernel/1603537 Thanks, Hein -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
