From 4fb3ce07eafa9d5945a1f36708557821a513b1b1 Mon Sep 17 00:00:00 2001 From: Maxime Ripard Date: Fri, 27 Jan 2017 22:38:38 +0100 Subject: [PATCH] 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 Signed-off-by: Maxime Ripard Tested-by: Florian Vaussard Acked-by: Chen-Yu Tsai Signed-off-by: Ulf Hansson --- drivers/mmc/host/sunxi-mmc.c | 8 ++++++++ 1 file changed, 8 insertions(+) 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 * (C) Copyright 2013-2014 David Lanzend�rfer * (C) Copyright 2013-2014 Hans de Goede + * (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); -- 2.45.2