mmc: rockchip_sdhci: Add initial support for RK3528

Add initial support for SDHCI controller in RK3528.

Only MMC Legacy and MMC High Speed (52MHz) mode is supported after this,
more work is needed to get the faster HS200/HS400/HS400ES modes working.

Variant tap and delay num is copied from vendor Linux tag
linux-6.1-stan-rkr5.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>

drivers/mmc/rockchip_sdhci.c

@@ -650,6 +650,17 @@ static const struct sdhci_data rk3399_data = {
 	.set_enhanced_strobe = rk3399_sdhci_set_enhanced_strobe,
 };
 
+static const struct sdhci_data rk3528_data = {
+	.set_ios_post = rk3568_sdhci_set_ios_post,
+	.set_clock = rk3568_sdhci_set_clock,
+	.config_dll = rk3568_sdhci_config_dll,
+	.hs200_txclk_tapnum = 0xc,
+	.hs400_txclk_tapnum = 0x6,
+	.hs400_cmdout_tapnum = 0x6,
+	.hs400_strbin_tapnum = 0x3,
+	.ddr50_strbin_delay_num = 0xa,
+};
+
 static const struct sdhci_data rk3568_data = {
 	.set_ios_post = rk3568_sdhci_set_ios_post,
 	.set_clock = rk3568_sdhci_set_clock,
@@ -678,6 +689,10 @@ static const struct udevice_id sdhci_ids[] = {
 		.compatible = "arasan,sdhci-5.1",
 		.data = (ulong)&rk3399_data,
 	},
+	{
+		.compatible = "rockchip,rk3528-dwcmshc",
+		.data = (ulong)&rk3528_data,
+	},
 	{
 		.compatible = "rockchip,rk3568-dwcmshc",
 		.data = (ulong)&rk3568_data,