From: Jon Lin <jon....@rock-chips.com>
Add support for the PCIe/USB3/SATA combo PHYs used in the RK3576 SoC.
Config values are taken from vendor U-Boot linux-6.1-stan-rkr5 tag.
Signed-off-by: Jon Lin <jon....@rock-chips.com>
Signed-off-by: Jonas Karlman <jo...@kwiboo.se>
---
v3: Ensure USB3OTG U3 port is enabled when USB3 PHY is used
v2: New patch
I have only verified that the PCIe and USB3 mode config works.
---
.../rockchip/phy-rockchip-naneng-combphy.c | 147 ++++++++++++++++++
1 file changed, 147 insertions(+)
diff --git a/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
b/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
index 7f107a11606b..8c116882ecfb 100644
--- a/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
+++ b/drivers/phy/rockchip/phy-rockchip-naneng-combphy.c
@@ -388,6 +388,149 @@ static const struct rockchip_combphy_cfg
rk3568_combphy_cfgs = {
.combphy_cfg = rk3568_combphy_cfg,
};
+static int rk3576_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:
+ /* Set SSC downward spread spectrum */
+ val = readl(priv->mmio + (0x1f << 2));
+ val &= ~GENMASK(5, 4);
+ val |= 0x01 << 4;
+ writel(val, priv->mmio + 0x7c);
+
+ /* Enable adaptive CTLE for USB3.0 Rx */
+ val = readl(priv->mmio + (0x0e << 2));
+ val &= ~GENMASK(0, 0);
+ val |= 0x01;
+ writel(val, priv->mmio + (0x0e << 2));
+
+ /* Set PLL KVCO fine tuning signals */
+ val = readl(priv->mmio + (0x20 << 2));
+ val &= ~(0x7 << 2);
+ val |= 0x2 << 2;
+ writel(val, priv->mmio + (0x20 << 2));
+
+ /* Set PLL LPF R1 to su_trim[10:7]=1001 */
+ writel(0x4, priv->mmio + (0xb << 2));
+
+ /* Set PLL input clock divider 1/2 */
+ val = readl(priv->mmio + (0x5 << 2));
+ val &= ~(0x3 << 6);
+ val |= 0x1 << 6;
+ writel(val, priv->mmio + (0x5 << 2));
+
+ /* Set PLL loop divider */
+ writel(0x32, priv->mmio + (0x11 << 2));
+
+ /* Set PLL KVCO to min and set PLL charge pump current to max */
+ writel(0xf0, priv->mmio + (0xa << 2));
+
+ /* Set Rx squelch input filler bandwidth */
+ writel(0x0d, priv->mmio + (0x14 << 2));
+
+ 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);
+ param_write(priv->pipe_grf, &cfg->u3otg1_port_en, true);
+ break;
+ case PHY_TYPE_SATA:
+ /* Enable adaptive CTLE for SATA Rx */
+ val = readl(priv->mmio + (0x0e << 2));
+ val &= ~GENMASK(0, 0);
+ val |= 0x01;
+ writel(val, priv->mmio + (0x0e << 2));
+ /* Set tx_rterm = 50 ohm and rx_rterm = 43.5 ohm */
+ writel(0x8F, priv->mmio + (0x06 << 2));
+
+ 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) {
+ /* gate_tx_pck_sel length select work for L1SS */
+ writel(0xc0, priv->mmio + 0x74);
+
+ /* PLL KVCO tuning fine */
+ val = readl(priv->mmio + (0x20 << 2));
+ val &= ~(0x7 << 2);
+ val |= 0x2 << 2;
+ writel(val, priv->mmio + (0x20 << 2));
+
+ /* Set up rx_trim: PLL LPF C1 85pf R1 1.25kohm */
+ writel(0x4c, priv->mmio + (0x1b << 2));
+
+ /* Set up su_trim: T3_P1 650mv */
+ writel(0x90, priv->mmio + (0xa << 2));
+ writel(0x43, priv->mmio + (0xb << 2));
+ writel(0x88, priv->mmio + (0xc << 2));
+ writel(0x56, priv->mmio + (0xd << 2));
+ }
+
+ return 0;
+}
+
+static const struct rockchip_combphy_grfcfg rk3576_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_phymode_sel = { 0x0008, 1, 1, 0x00, 0x01 },
+ .pipe_rate_sel = { 0x0008, 2, 2, 0x00, 0x01 },
+ .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, 0x0000 },
+ .con2_for_sata = { 0x0008, 15, 0, 0x00, 0x80c1 },
+ .con3_for_sata = { 0x000c, 15, 0, 0x00, 0x0407 },
+ /* php-grf */
+ .pipe_con0_for_sata = { 0x001C, 2, 0, 0x00, 0x2 },
+ .pipe_con1_for_sata = { 0x0020, 2, 0, 0x00, 0x2 },
+ .u3otg1_port_en = { 0x0038, 15, 0, 0x0181, 0x1100 },
+};
+
+static const struct rockchip_combphy_cfg rk3576_combphy_cfgs = {
+ .num_phys = 2,
+ .phy_ids = {
+ 0x2b050000,
+ 0x2b060000,
+ },
+ .grfcfg = &rk3576_combphy_grfcfgs,
+ .combphy_cfg = rk3576_combphy_cfg,
+};
+
static int rk3588_combphy_cfg(struct rockchip_combphy_priv *priv)
{
const struct rockchip_combphy_grfcfg *cfg = priv->cfg->grfcfg;
@@ -499,6 +642,10 @@ static const struct udevice_id rockchip_combphy_ids[] = {
.compatible = "rockchip,rk3568-naneng-combphy",
.data = (ulong)&rk3568_combphy_cfgs
},
+ {
+ .compatible = "rockchip,rk3576-naneng-combphy",
+ .data = (ulong)&rk3576_combphy_cfgs
+ },
{
.compatible = "rockchip,rk3588-naneng-combphy",
.data = (ulong)&rk3588_combphy_cfgs
--
2.50.1
