On Mon, 9 Jun 2014 11:36:55 +0200 Hans de Goede <hdego...@redhat.com> wrote:
> The DMA code in sunxi_mmc.c is broken. mmc_trans_data_by_dma() allocates the > dma descriptors on the stack, and then exits while the dma transfer is in > progress, so the dma engine is reading stack memory which at that point may > be re-used. So far we've gotten away with this by luck, but recent u-boot > changes have shifted the stack start address by 16 bytes, which combined > with dma alignment now exposes this problem. > > Since we end up just busy waiting for the dma engine anyway, this commit > fixes things by simply removing the dma code, resulting in smaller bug-free > code. > > Signed-off-by: Hans de Goede <hdego...@redhat.com> > Acked-by: Ian Campbell <i...@hellion.org.uk> Acked-by: Siarhei Siamashka <siarhei.siamas...@gmail.com> Was it a good idea to keep v2014.07 release relying on luck without this patch? -- Best regards, Siarhei Siamashka _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
