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rockchip: dwmmc: add handling for u-boot, spl-fifo-mode

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Rockchips dwmmc controllers can't do dma to non-ddr addresses,
like for example the soc-internal sram but during boot parts of
TrustedFirmware need to be placed there from the read FIT image.

So add handling for a u-boot,spl-fifo-mode to not put the mmc
controllers into fifo mode for all time.

The regular fifo-mode property still takes precedent and only
if not set do we check for the spl-specific property.

Suggested-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This commit is contained in:
Heiko Stuebner 2019-11-19 12:04:01 +01:00 committed by Kever Yang
parent d4fba131bb
commit c8dd0e42d7
1 changed files with 5 additions and 0 deletions
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5
drivers/mmc/rockchip_dw_mmc.c
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@ -72,6 +72,11 @@ static int rockchip_dwmmc_ofdata_to_platdata(struct udevice *dev)
return -EINVAL;
priv->fifo_mode = dev_read_bool(dev, "fifo-mode");
#ifdef CONFIG_SPL_BUILD
if (!priv->fifo_mode)
priv->fifo_mode = dev_read_bool(dev, "u-boot,spl-fifo-mode");
#endif
/*
* 'clock-freq-min-max' is deprecated
* (see https://github.com/torvalds/linux/commit/b023030f10573de738bbe8df63d43acab64c9f7b)