From mboxrd@z Thu Jan 1 00:00:00 1970 From: York Sun Date: Wed, 11 Jun 2014 14:38:02 -0700 Subject: [U-Boot] [PATCH] powerpc/mpc85xx: Add workaround to enable TDM on T1040 In-Reply-To: <1401974397-11979-1-git-send-email-Sandeep@freescale.com> References: <1401974397-11979-1-git-send-email-Sandeep@freescale.com> Message-ID: <5398CC3A.3070506@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 06/05/2014 06:19 AM, Sandeep Singh wrote: > This is a workaround for 32 bit hardware limitation of TDM. > T1040 has 36 bit physical addressing, TDM DMAC register > are 32 bit wide but need to store address of CCSR space > which lies beyond 32 bit address range. This workaround > creats a LAW to enable access of TDM DMA to CCSR by > mapping CCSR to overlap with DDR. > A hole of 16M is created in memory using device tree. This > workaround law is set only if "tdm" is defined in hwconfig. > Also disable POST tests and add LIODN for TDM > > Signed-off-by: Sandeep Singh > Cc: York Sun > --- Applied to u-boot-mpc85xx. Sorry for the late notice. York