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mmc: sunxi: allow 3.3V DDR when DDR is available

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Some Allwinner boards feature an on-board eMMC with fixed 3.3V voltage
(e.g. Banana Pi M2+), and in this case both the eMMC and the SoC are
capable of doing 3.3V DDR transmission.

Add capability of 3.3V DDR when DDR is available (extra clock or new
timing).

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Icenowy Zheng 2018-07-22 20:54:07 +08:00 committed by Ulf Hansson
parent 29aba07aea
commit 88023d43ff
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/host/sunxi-mmc.c
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@ -1388,7 +1388,7 @@ static int sunxi_mmc_probe(struct platform_device *pdev)
MMC_CAP_ERASE | MMC_CAP_SDIO_IRQ;
if (host->cfg->clk_delays || host->use_new_timings)
mmc->caps |= MMC_CAP_1_8V_DDR;
mmc->caps |= MMC_CAP_1_8V_DDR | MMC_CAP_3_3V_DDR;
ret = mmc_of_parse(mmc);
if (ret)