[PATCH 07/13] mmc: rockchip_sdhci: Add initial support for RK3528

[Jonas Karlman]

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 at kwiboo.se>
---
 drivers/mmc/rockchip_sdhci.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c
index 4968404bfaed..2c54b8a942da 100644
--- a/drivers/mmc/rockchip_sdhci.c
+++ b/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,
-- 
2.48.1