[4/8] phy: uniphier-pcie: Add compatible string and SoC-dependent data for NX1 SoC

Commit Message

Kunihiko Hayashi Oct. 18, 2021, 1:37 a.m. UTC

Add basic support for UniPhier NX1 SoC. This includes a compatible string,
SoC-dependent data, and a function that set to 2-lane mode.

Signed-off-by: Kunihiko Hayashi <[e-mail]>
---
 drivers/phy/socionext/phy-uniphier-pcie.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

Patch

diff --git a/drivers/phy/socionext/phy-uniphier-pcie.c b/drivers/phy/socionext/phy-uniphier-pcie.c
index 6bdbd1f214dd..fde8aac5f4b6 100644
--- a/drivers/phy/socionext/phy-uniphier-pcie.c
+++ b/drivers/phy/socionext/phy-uniphier-pcie.c
@@ -39,6 +39,10 @@ 
 #define SG_USBPCIESEL		0x590
 #define SG_USBPCIESEL_PCIE	BIT(0)
 
+/* SC */
+#define SC_US3SRCSEL		0x2244
+#define SC_US3SRCSEL_2LANE	GENMASK(9, 8)
+
 #define PCL_PHY_R00		0
 #define   RX_EQ_ADJ_EN		BIT(3)		/* enable for EQ adjustment */
 #define PCL_PHY_R06		6
@@ -261,6 +265,12 @@  static void uniphier_pciephy_ld20_setmode(struct regmap *regmap)
 			   SG_USBPCIESEL_PCIE, SG_USBPCIESEL_PCIE);
 }
 
+static void uniphier_pciephy_nx1_setmode(struct regmap *regmap)
+{
+	regmap_update_bits(regmap, SC_US3SRCSEL,
+			   SC_US3SRCSEL_2LANE, SC_US3SRCSEL_2LANE);
+}
+
 static const struct uniphier_pciephy_soc_data uniphier_pro5_data = {
 	.is_legacy = true,
 };
@@ -274,6 +284,11 @@  static const struct uniphier_pciephy_soc_data uniphier_pxs3_data = {
 	.is_legacy = false,
 };
 
+static const struct uniphier_pciephy_soc_data uniphier_nx1_data = {
+	.is_legacy = false,
+	.set_phymode = uniphier_pciephy_nx1_setmode,
+};
+
 static const struct of_device_id uniphier_pciephy_match[] = {
 	{
 		.compatible = "socionext,uniphier-pro5-pcie-phy",
@@ -287,6 +302,10 @@  static const struct of_device_id uniphier_pciephy_match[] = {
 		.compatible = "socionext,uniphier-pxs3-pcie-phy",
 		.data = &uniphier_pxs3_data,
 	},
+	{
+		.compatible = "socionext,uniphier-nx1-pcie-phy",
+		.data = &uniphier_nx1_data,
+	},
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, uniphier_pciephy_match);