linux-kernel - [PATCH 13/17] mmc: sunxi: add support for R329 MMC controllers

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Date:   Mon,  2 Aug 2021 14:22:08 +0800
From:   Icenowy Zheng <icenowy@...eed.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Andre Przywara <andre.przywara@....com>,
        Samuel Holland <samuel@...lland.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Icenowy Zheng <icenowy@...eed.com>
Subject: [PATCH 13/17] mmc: sunxi: add support for R329 MMC controllers

The two MMC controllers in Allwinner R329 have a mixed feature set
comparing to the previous SoCs' ordinary MMC and eMMC controllers.

Add support for them.

Signed-off-by: Icenowy Zheng <icenowy@...eed.com>
---
 drivers/mmc/host/sunxi-mmc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 2702736a1c57..0c9f66785286 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1199,6 +1199,15 @@ static const struct sunxi_mmc_cfg sun50i_a100_emmc_cfg = {
 	.needs_new_timings = true,
 };
 
+static const struct sunxi_mmc_cfg sun50i_r329_cfg = {
+	.idma_des_size_bits = 13,
+	.idma_des_shift = 2,
+	.clk_delays = NULL,
+	.can_calibrate = true,
+	.mask_data0 = true,
+	.needs_new_timings = 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 },
@@ -1209,6 +1218,7 @@ static const struct of_device_id sunxi_mmc_of_match[] = {
 	{ .compatible = "allwinner,sun50i-a64-emmc", .data = &sun50i_a64_emmc_cfg },
 	{ .compatible = "allwinner,sun50i-a100-mmc", .data = &sun50i_a100_cfg },
 	{ .compatible = "allwinner,sun50i-a100-emmc", .data = &sun50i_a100_emmc_cfg },
+	{ .compatible = "allwinner,sun50i-r329-mmc", .data = &sun50i_r329_cfg },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sunxi_mmc_of_match);
-- 
2.30.2