From mboxrd@z Thu Jan 1 00:00:00 1970 From: York Sun Date: Wed, 11 Jun 2014 14:36:54 -0700 Subject: [U-Boot] [PATCH] powerpc/serdes: Add the workaround for erratum A-007186 In-Reply-To: <1401266935-6390-1-git-send-email-shaveta@freescale.com> References: <1401266935-6390-1-git-send-email-shaveta@freescale.com> Message-ID: <5398CBF6.50507@freescale.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 05/28/2014 01:48 AM, Shaveta Leekha wrote: > SerDes PLL is calibrated at reset. When the junction temperature > delta from the time the PLL is calibrated exceeds +56C/-66C, > jitter may increase and can cause PLL to unlock. > > This workaround overwrite the SerDes registers with new values, > to calibrate SerDes registers. > These values are known to work fine for all temperature ranges. > > This workaround is valid for B4, T4 and T2 platforms, so > added in their config. > > Signed-off-by: Shaveta Leekha > Signed-off-by: Poonam Aggrwal > --- Applied to u-boot-mpc85xx. Sorry for the late notice. York