From mboxrd@z Thu Jan  1 00:00:00 1970
From: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Date: Sun, 06 Aug 2017 19:18:18 +0200
Subject: [U-Boot] [U-Boot, v4,
 42/66] rockchip: clk: rk3368: define DMA1_SRST_REQ and DMA2_SRST_REQ
In-Reply-To: <1501706105-7490-43-git-send-email-philipp.tomsich@theobroma-systems.com>
References: <1501706105-7490-43-git-send-email-philipp.tomsich@theobroma-systems.com>
Message-ID: <E1dePBy-0006Xq-3A@mail.theobroma-systems.com>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

> On he RK3368, we need to temporarily disable security on the DMA
> engines during TPL and SPL to allow the MMC host to DMA into DRAM.  To
> do so, we need to reset the two DMA engines, which in turn requires
> the DMA1_SRST_REQ and DMA2_SRST_REQ constants to refer to the
> appropriate bits in the CRU.
> 
> As the ATF correctly initialises security (and only leaves EL3 after
> doing so), this can not pose a security issue.
> 
> Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
> 
> Reviewed-by: Simon Glass <sjg@chromium.org>
> ---
> 
> Changes in v4: None
> Changes in v3: None
> Changes in v2: None
> 
>  arch/arm/include/asm/arch-rockchip/cru_rk3368.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 

Applied to u-boot-rockchip, thanks!