diff mbox series

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

Message ID 20250123224844.3104592-8-jonas@kwiboo.se
State Superseded
Delegated to: Kever Yang
Headers show
Series rockchip: Add initial support for RK3528 | expand

Commit Message

Jonas Karlman Jan. 23, 2025, 10:48 p.m. UTC 
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 | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
diff mbox series

Patch

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,