[PATCH v3 4/7] phy: rockchip: naneng-combphy: Support rk3588

[Eugen Hristev]

From: Jon Lin <jon.lin at rock-chips.com>

Add support for rk3588 phy variant.
The PHY clock is fixed at 100MHz.

Signed-off-by: Jon Lin <jon.lin at rock-chips.com>
[kever.yang at rock-chips.com: update pcie pll parameters]
Co-developed-by: Kever Yang <kever.yang at rock-chips.com>
Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
[eugen.hristev at collabora.com: squashed, tidy up]
Signed-off-by: Eugen Hristev <eugen.hristev at collabora.com>
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>
---
Changes in v2,v3:
  - none

 .../rockchip/phy-rockchip-naneng-combphy.c    | 95 +++++++++++++++++++
 1 file changed, 95 insertions(+)

diff --git a/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c b/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
index b673a8da9f8e..d5408ccac976 100644
--- a/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
+++ b/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
@@ -58,6 +58,7 @@ struct rockchip_combphy_grfcfg {
 	struct combphy_reg con2_for_sata;
 	struct combphy_reg con3_for_sata;
 	struct combphy_reg pipe_con0_for_sata;
+	struct combphy_reg pipe_con1_for_sata;
 	struct combphy_reg pipe_sgmii_mac_sel;
 	struct combphy_reg pipe_xpcs_phy_ready;
 	struct combphy_reg u3otg0_port_en;
@@ -423,11 +424,105 @@ static const struct rockchip_combphy_cfg rk3568_combphy_cfgs = {
 	.combphy_cfg	= rk3568_combphy_cfg,
 };
 
+static int rk3588_combphy_cfg(struct rockchip_combphy_priv *priv)
+{
+	const struct rockchip_combphy_grfcfg *cfg = priv->cfg->grfcfg;
+	u32 val;
+
+	switch (priv->mode) {
+	case PHY_TYPE_PCIE:
+		param_write(priv->phy_grf, &cfg->con0_for_pcie, true);
+		param_write(priv->phy_grf, &cfg->con1_for_pcie, true);
+		param_write(priv->phy_grf, &cfg->con2_for_pcie, true);
+		param_write(priv->phy_grf, &cfg->con3_for_pcie, true);
+		break;
+	case PHY_TYPE_USB3:
+		param_write(priv->phy_grf, &cfg->pipe_txcomp_sel, false);
+		param_write(priv->phy_grf, &cfg->pipe_txelec_sel, false);
+		param_write(priv->phy_grf, &cfg->usb_mode_set, true);
+		break;
+	case PHY_TYPE_SATA:
+		param_write(priv->phy_grf, &cfg->con0_for_sata, true);
+		param_write(priv->phy_grf, &cfg->con1_for_sata, true);
+		param_write(priv->phy_grf, &cfg->con2_for_sata, true);
+		param_write(priv->phy_grf, &cfg->con3_for_sata, true);
+		param_write(priv->pipe_grf, &cfg->pipe_con0_for_sata, true);
+		param_write(priv->pipe_grf, &cfg->pipe_con1_for_sata, true);
+		break;
+	case PHY_TYPE_SGMII:
+	case PHY_TYPE_QSGMII:
+	default:
+		dev_err(priv->dev, "incompatible PHY type\n");
+		return -EINVAL;
+	}
+
+	/* 100MHz refclock signal is good */
+	clk_set_rate(&priv->ref_clk, 100000000);
+	param_write(priv->phy_grf, &cfg->pipe_clk_100m, true);
+	if (priv->mode == PHY_TYPE_PCIE) {
+		/* PLL KVCO tuning fine */
+		val = readl(priv->mmio + (0x20 << 2));
+		val &= ~GENMASK(4, 2);
+		val |= 0x4 << 2;
+		writel(val, priv->mmio + (0x20 << 2));
+
+		/* Set up rx_trim: PLL LPF C1 85pf R1 1.25kohm */
+		val = 0x4c;
+		writel(val, priv->mmio + (0x1b << 2));
+
+		/* Set up su_trim: T3 */
+		val = 0xb0;
+		writel(val, priv->mmio + (0xa << 2));
+		val = 0x47;
+		writel(val, priv->mmio + (0xb << 2));
+		val = 0x57;
+		writel(val, priv->mmio + (0xd << 2));
+	}
+
+	return 0;
+}
+
+static const struct rockchip_combphy_grfcfg rk3588_combphy_grfcfgs = {
+	/* pipe-phy-grf */
+	.pcie_mode_set		= { 0x0000, 5, 0, 0x00, 0x11 },
+	.usb_mode_set		= { 0x0000, 5, 0, 0x00, 0x04 },
+	.pipe_rxterm_set	= { 0x0000, 12, 12, 0x00, 0x01 },
+	.pipe_txelec_set	= { 0x0004, 1, 1, 0x00, 0x01 },
+	.pipe_txcomp_set	= { 0x0004, 4, 4, 0x00, 0x01 },
+	.pipe_clk_25m		= { 0x0004, 14, 13, 0x00, 0x01 },
+	.pipe_clk_100m		= { 0x0004, 14, 13, 0x00, 0x02 },
+	.pipe_rxterm_sel	= { 0x0008, 8, 8, 0x00, 0x01 },
+	.pipe_txelec_sel	= { 0x0008, 12, 12, 0x00, 0x01 },
+	.pipe_txcomp_sel	= { 0x0008, 15, 15, 0x00, 0x01 },
+	.pipe_clk_ext		= { 0x000c, 9, 8, 0x02, 0x01 },
+	.pipe_phy_status	= { 0x0034, 6, 6, 0x01, 0x00 },
+	.con0_for_pcie		= { 0x0000, 15, 0, 0x00, 0x1000 },
+	.con1_for_pcie		= { 0x0004, 15, 0, 0x00, 0x0000 },
+	.con2_for_pcie		= { 0x0008, 15, 0, 0x00, 0x0101 },
+	.con3_for_pcie		= { 0x000c, 15, 0, 0x00, 0x0200 },
+	.con0_for_sata		= { 0x0000, 15, 0, 0x00, 0x0129 },
+	.con1_for_sata		= { 0x0004, 15, 0, 0x00, 0x0040 },
+	.con2_for_sata		= { 0x0008, 15, 0, 0x00, 0x80c1 },
+	.con3_for_sata		= { 0x000c, 15, 0, 0x00, 0x0407 },
+	/* pipe-grf */
+	.pipe_con0_for_sata	= { 0x0000, 11, 5, 0x00, 0x22 },
+	.pipe_con1_for_sata	= { 0x0000, 2, 0, 0x00, 0x2 },
+};
+
+static const struct rockchip_combphy_cfg rk3588_combphy_cfgs = {
+	.grfcfg		= &rk3588_combphy_grfcfgs,
+	.combphy_cfg	= rk3588_combphy_cfg,
+};
+
 static const struct udevice_id rockchip_combphy_ids[] = {
 	{
 		.compatible = "rockchip,rk3568-naneng-combphy",
 		.data = (ulong)&rk3568_combphy_cfgs
 	},
+	{
+		.compatible = "rockchip,rk3588-naneng-combphy",
+		.data = (ulong)&rk3588_combphy_cfgs
+	},
 	{ }
 };
 
-- 
2.34.1