From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Rini Date: Fri, 28 Mar 2014 17:16:36 -0400 Subject: [U-Boot] axs101: flush DMA buffer descriptors before DMA transactons starts In-Reply-To: <1395406667-25009-1-git-send-email-abrodkin@synopsys.com> References: <1395406667-25009-1-git-send-email-abrodkin@synopsys.com> Message-ID: <20140328211636.GG16360@bill-the-cat> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Fri, Mar 21, 2014 at 04:57:47PM +0400, Alexey Brodkin wrote: > CPU sets DMA buffer descriptors with data required for inetrnal DMA such as: > * Ownership of BD > * Buffer size > * Pointer to data buffer in memory > > Then we need to make sure DMA engine of NAND controller gets proper data. > For this we flush buffer rescriptor. > > Then we're ready for DMA transaction. > > Signed-off-by: Alexey Brodkin Applied to u-boot/master, thanks! -- Tom -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 836 bytes Desc: Digital signature URL: