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| author | Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-01-27 22:38:38 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-02-13 13:20:51 +0100 |
| commit | 4fb3ce07eafa9d5945a1f36708557821a513b1b1 (patch) | |
| tree | 2baaaa41054a198be71517735695f3eeb60962d6 /drivers/mmc | |
| parent | 16e821e3ba47096eb23abedd5a5e377d77f5f0d5 (diff) | |
| download | linux-4fb3ce07eafa9d5945a1f36708557821a513b1b1.tar.gz linux-4fb3ce07eafa9d5945a1f36708557821a513b1b1.tar.xz | |
mmc: sunxi: Add EMMC (MMC2) controller compatible
The MMC2 controller on the A64 is kind of a special beast.
While the general controller design is the same than the other MMC
controllers in the SoC, it also has a bunch of features and changes that
prevent it to be driven in the same way.
It has for example a different bus width limit, a different maximum
frequency, and, for some reason, the maximum buffer size of a DMA
descriptor.
Add a new compatible specifically for this controller.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Tested-by: Florian Vaussard <florian.vaussard@heig-vd.ch>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sunxi-mmc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c index 6bbe61397b7c..f0f6922bca8a 100644 --- a/drivers/mmc/host/sunxi-mmc.c +++ b/drivers/mmc/host/sunxi-mmc.c @@ -5,6 +5,7 @@ * (C) Copyright 2013-2014 O2S GmbH <www.o2s.ch> * (C) Copyright 2013-2014 David Lanzend�rfer <david.lanzendoerfer@o2s.ch> * (C) Copyright 2013-2014 Hans de Goede <hdegoede@redhat.com> + * (C) Copyright 2017 Sootech SA * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as @@ -1096,12 +1097,19 @@ static const struct sunxi_mmc_cfg sun50i_a64_cfg = { .needs_new_timings = true, }; +static const struct sunxi_mmc_cfg sun50i_a64_emmc_cfg = { + .idma_des_size_bits = 13, + .clk_delays = NULL, + .can_calibrate = true, +}; + static const struct of_device_id sunxi_mmc_of_match[] = { { .compatible = "allwinner,sun4i-a10-mmc", .data = &sun4i_a10_cfg }, { .compatible = "allwinner,sun5i-a13-mmc", .data = &sun5i_a13_cfg }, { .compatible = "allwinner,sun7i-a20-mmc", .data = &sun7i_a20_cfg }, { .compatible = "allwinner,sun9i-a80-mmc", .data = &sun9i_a80_cfg }, { .compatible = "allwinner,sun50i-a64-mmc", .data = &sun50i_a64_cfg }, + { .compatible = "allwinner,sun50i-a64-emmc", .data = &sun50i_a64_emmc_cfg }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, sunxi_mmc_of_match); |