From: York Sun <yorksun@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] powerpc/mpc85xx: Add workaround to enable TDM on T1040
Date: Wed, 11 Jun 2014 14:38:02 -0700 [thread overview]
Message-ID: <5398CC3A.3070506@freescale.com> (raw)
In-Reply-To: <1401974397-11979-1-git-send-email-Sandeep@freescale.com>
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 <Sandeep@freescale.com>
> Cc: York Sun <yorksun@freescale.com>
> ---
Applied to u-boot-mpc85xx. Sorry for the late notice.
York
prev parent reply other threads:[~2014-06-11 21:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-05 13:19 [U-Boot] [PATCH] powerpc/mpc85xx: Add workaround to enable TDM on T1040 Sandeep Singh
2014-06-11 21:38 ` York Sun [this message]
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