[U-Boot] [U-Boot, v4, 42/66] rockchip: clk: rk3368: define DMA1_SRST_REQ and DMA2_SRST_REQ
philipp.tomsich at theobroma-systems.com
Sun Aug 6 17:18:18 UTC 2017
> 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 at theobroma-systems.com>
> Reviewed-by: Simon Glass <sjg at 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!
More information about the U-Boot