phy: uniphier-pcie: Add compatible string and SoC-dependent data for NX1 SoC

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 <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1635503947-18250-5-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/phy/socionext/phy-uniphier-pcie.c b/drivers/phy/socionext/phy-uniphier-pcie.c
index 6bdbd1f214dd46960ba65c80703d05c01b74dfb6..fde8aac5f4b6b2db684936782454b53ff5e047c5 100644 (file)
--- 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);