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-rw-r--r--drivers/phy/rockchip/phy-rockchip-typec.c261
-rw-r--r--include/soc/rockchip/rockchip_phy_typec.h8
2 files changed, 216 insertions, 53 deletions
diff --git a/drivers/phy/rockchip/phy-rockchip-typec.c b/drivers/phy/rockchip/phy-rockchip-typec.c
index bcc635a6b3a4..82085f2266eb 100644
--- a/drivers/phy/rockchip/phy-rockchip-typec.c
+++ b/drivers/phy/rockchip/phy-rockchip-typec.c
@@ -324,21 +324,29 @@
* clock 0: PLL 0 div 1
* clock 1: PLL 1 div 2
*/
-#define CLK_PLL_CONFIG 0X30
+#define CLK_PLL1_DIV1 0x20
+#define CLK_PLL1_DIV2 0x30
#define CLK_PLL_MASK 0x33
#define CMN_READY BIT(0)
+#define DP_PLL_CLOCK_ENABLE_ACK BIT(3)
#define DP_PLL_CLOCK_ENABLE BIT(2)
+#define DP_PLL_ENABLE_ACK BIT(1)
#define DP_PLL_ENABLE BIT(0)
#define DP_PLL_DATA_RATE_RBR ((2 << 12) | (4 << 8))
#define DP_PLL_DATA_RATE_HBR ((2 << 12) | (4 << 8))
#define DP_PLL_DATA_RATE_HBR2 ((1 << 12) | (2 << 8))
+#define DP_PLL_DATA_RATE_MASK 0xff00
-#define DP_MODE_A0 BIT(4)
-#define DP_MODE_A2 BIT(6)
-#define DP_MODE_ENTER_A0 0xc101
-#define DP_MODE_ENTER_A2 0xc104
+#define DP_MODE_MASK 0xf
+#define DP_MODE_ENTER_A0 BIT(0)
+#define DP_MODE_ENTER_A2 BIT(2)
+#define DP_MODE_ENTER_A3 BIT(3)
+#define DP_MODE_A0_ACK BIT(4)
+#define DP_MODE_A2_ACK BIT(6)
+#define DP_MODE_A3_ACK BIT(7)
+#define DP_LINK_RESET_DEASSERTED BIT(8)
#define PHY_MODE_SET_TIMEOUT 100000
@@ -352,6 +360,8 @@
#define POWER_ON_TRIES 5
+#define DP_DEFAULT_RATE 162000
+
struct phy_reg {
u16 value;
u32 addr;
@@ -374,15 +384,15 @@ struct phy_reg usb3_pll_cfg[] = {
{ 0x8, CMN_DIAG_PLL0_LF_PROG },
};
-struct phy_reg dp_pll_cfg[] = {
+struct phy_reg dp_pll_rbr_cfg[] = {
{ 0xf0, CMN_PLL1_VCOCAL_INIT },
{ 0x18, CMN_PLL1_VCOCAL_ITER },
{ 0x30b9, CMN_PLL1_VCOCAL_START },
- { 0x21c, CMN_PLL1_INTDIV },
+ { 0x87, CMN_PLL1_INTDIV },
{ 0, CMN_PLL1_FRACDIV },
- { 0x5, CMN_PLL1_HIGH_THR },
- { 0x35, CMN_PLL1_SS_CTRL1 },
- { 0x7f1e, CMN_PLL1_SS_CTRL2 },
+ { 0x22, CMN_PLL1_HIGH_THR },
+ { 0x8000, CMN_PLL1_SS_CTRL1 },
+ { 0, CMN_PLL1_SS_CTRL2 },
{ 0x20, CMN_PLL1_DSM_DIAG },
{ 0, CMN_PLLSM1_USER_DEF_CTRL },
{ 0, CMN_DIAG_PLL1_OVRD },
@@ -393,7 +403,69 @@ struct phy_reg dp_pll_cfg[] = {
{ 0x8, CMN_DIAG_PLL1_LF_PROG },
{ 0x100, CMN_DIAG_PLL1_PTATIS_TUNE1 },
{ 0x7, CMN_DIAG_PLL1_PTATIS_TUNE2 },
- { 0x4, CMN_DIAG_PLL1_INCLK_CTRL },
+ { 0x1, CMN_DIAG_PLL1_INCLK_CTRL },
+};
+
+struct phy_reg dp_pll_hbr_cfg[] = {
+ { 0xf0, CMN_PLL1_VCOCAL_INIT },
+ { 0x18, CMN_PLL1_VCOCAL_ITER },
+ { 0x30b4, CMN_PLL1_VCOCAL_START },
+ { 0xe1, CMN_PLL1_INTDIV },
+ { 0, CMN_PLL1_FRACDIV },
+ { 0x5, CMN_PLL1_HIGH_THR },
+ { 0x8000, CMN_PLL1_SS_CTRL1 },
+ { 0, CMN_PLL1_SS_CTRL2 },
+ { 0x20, CMN_PLL1_DSM_DIAG },
+ { 0x1000, CMN_PLLSM1_USER_DEF_CTRL },
+ { 0, CMN_DIAG_PLL1_OVRD },
+ { 0, CMN_DIAG_PLL1_FBH_OVRD },
+ { 0, CMN_DIAG_PLL1_FBL_OVRD },
+ { 0x7, CMN_DIAG_PLL1_V2I_TUNE },
+ { 0x45, CMN_DIAG_PLL1_CP_TUNE },
+ { 0x8, CMN_DIAG_PLL1_LF_PROG },
+ { 0x1, CMN_DIAG_PLL1_PTATIS_TUNE1 },
+ { 0x1, CMN_DIAG_PLL1_PTATIS_TUNE2 },
+ { 0x1, CMN_DIAG_PLL1_INCLK_CTRL },
+};
+
+struct phy_reg dp_pll_hbr2_cfg[] = {
+ { 0xf0, CMN_PLL1_VCOCAL_INIT },
+ { 0x18, CMN_PLL1_VCOCAL_ITER },
+ { 0x30b4, CMN_PLL1_VCOCAL_START },
+ { 0xe1, CMN_PLL1_INTDIV },
+ { 0, CMN_PLL1_FRACDIV },
+ { 0x5, CMN_PLL1_HIGH_THR },
+ { 0x8000, CMN_PLL1_SS_CTRL1 },
+ { 0, CMN_PLL1_SS_CTRL2 },
+ { 0x20, CMN_PLL1_DSM_DIAG },
+ { 0x1000, CMN_PLLSM1_USER_DEF_CTRL },
+ { 0, CMN_DIAG_PLL1_OVRD },
+ { 0, CMN_DIAG_PLL1_FBH_OVRD },
+ { 0, CMN_DIAG_PLL1_FBL_OVRD },
+ { 0x7, CMN_DIAG_PLL1_V2I_TUNE },
+ { 0x45, CMN_DIAG_PLL1_CP_TUNE },
+ { 0x8, CMN_DIAG_PLL1_LF_PROG },
+ { 0x1, CMN_DIAG_PLL1_PTATIS_TUNE1 },
+ { 0x1, CMN_DIAG_PLL1_PTATIS_TUNE2 },
+ { 0x1, CMN_DIAG_PLL1_INCLK_CTRL },
+};
+
+/* default phy config */
+static const struct phy_config tcphy_default_config[3][4] = {
+ {{ .swing = 0x2a, .pe = 0x00 },
+ { .swing = 0x1f, .pe = 0x15 },
+ { .swing = 0x14, .pe = 0x22 },
+ { .swing = 0x02, .pe = 0x2b } },
+
+ {{ .swing = 0x21, .pe = 0x00 },
+ { .swing = 0x12, .pe = 0x15 },
+ { .swing = 0x02, .pe = 0x22 },
+ { .swing = 0, .pe = 0 } },
+
+ {{ .swing = 0x15, .pe = 0x00 },
+ { .swing = 0x00, .pe = 0x15 },
+ { .swing = 0, .pe = 0 },
+ { .swing = 0, .pe = 0 } },
};
static void tcphy_cfg_24m(struct rockchip_typec_phy *tcphy)
@@ -417,7 +489,7 @@ static void tcphy_cfg_24m(struct rockchip_typec_phy *tcphy)
rdata = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
rdata &= ~CLK_PLL_MASK;
- rdata |= CLK_PLL_CONFIG;
+ rdata |= CLK_PLL1_DIV2;
writel(rdata, tcphy->base + CMN_DIAG_HSCLK_SEL);
}
@@ -431,17 +503,44 @@ static void tcphy_cfg_usb3_pll(struct rockchip_typec_phy *tcphy)
tcphy->base + usb3_pll_cfg[i].addr);
}
-static void tcphy_cfg_dp_pll(struct rockchip_typec_phy *tcphy)
+static void tcphy_cfg_dp_pll(struct rockchip_typec_phy *tcphy, int link_rate)
{
- u32 i;
+ struct phy_reg *phy_cfg;
+ u32 clk_ctrl;
+ u32 i, cfg_size, hsclk_sel;
+
+ hsclk_sel = readl(tcphy->base + CMN_DIAG_HSCLK_SEL);
+ hsclk_sel &= ~CLK_PLL_MASK;
+
+ switch (link_rate) {
+ case 540000:
+ clk_ctrl = DP_PLL_DATA_RATE_HBR2;
+ hsclk_sel |= CLK_PLL1_DIV1;
+ phy_cfg = dp_pll_hbr2_cfg;
+ cfg_size = ARRAY_SIZE(dp_pll_hbr2_cfg);
+ break;
+ case 270000:
+ clk_ctrl = DP_PLL_DATA_RATE_HBR;
+ hsclk_sel |= CLK_PLL1_DIV2;
+ phy_cfg = dp_pll_hbr_cfg;
+ cfg_size = ARRAY_SIZE(dp_pll_hbr_cfg);
+ break;
+ case 162000:
+ default:
+ clk_ctrl = DP_PLL_DATA_RATE_RBR;
+ hsclk_sel |= CLK_PLL1_DIV2;
+ phy_cfg = dp_pll_rbr_cfg;
+ cfg_size = ARRAY_SIZE(dp_pll_rbr_cfg);
+ break;
+ }
- /* set the default mode to RBR */
- writel(DP_PLL_CLOCK_ENABLE | DP_PLL_ENABLE | DP_PLL_DATA_RATE_RBR,
- tcphy->base + DP_CLK_CTL);
+ clk_ctrl |= DP_PLL_CLOCK_ENABLE | DP_PLL_ENABLE;
+ writel(clk_ctrl, tcphy->base + DP_CLK_CTL);
+ writel(hsclk_sel, tcphy->base + CMN_DIAG_HSCLK_SEL);
/* load the configuration of PLL1 */
- for (i = 0; i < ARRAY_SIZE(dp_pll_cfg); i++)
- writel(dp_pll_cfg[i].value, tcphy->base + dp_pll_cfg[i].addr);
+ for (i = 0; i < cfg_size; i++)
+ writel(phy_cfg[i].value, tcphy->base + phy_cfg[i].addr);
}
static void tcphy_tx_usb3_cfg_lane(struct rockchip_typec_phy *tcphy, u32 lane)
@@ -468,9 +567,10 @@ static void tcphy_rx_usb3_cfg_lane(struct rockchip_typec_phy *tcphy, u32 lane)
writel(0xfb, tcphy->base + XCVR_DIAG_BIDI_CTRL(lane));
}
-static void tcphy_dp_cfg_lane(struct rockchip_typec_phy *tcphy, u32 lane)
+static void tcphy_dp_cfg_lane(struct rockchip_typec_phy *tcphy, int link_rate,
+ u8 swing, u8 pre_emp, u32 lane)
{
- u16 rdata;
+ u16 val;
writel(0xbefc, tcphy->base + XCVR_PSM_RCTRL(lane));
writel(0x6799, tcphy->base + TX_PSC_A0(lane));
@@ -478,25 +578,32 @@ static void tcphy_dp_cfg_lane(struct rockchip_typec_phy *tcphy, u32 lane)
writel(0x98, tcphy->base + TX_PSC_A2(lane));
writel(0x98, tcphy->base + TX_PSC_A3(lane));
- writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_000(lane));
- writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_001(lane));
- writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_010(lane));
- writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_011(lane));
- writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_100(lane));
- writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_101(lane));
- writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_110(lane));
- writel(0, tcphy->base + TX_TXCC_MGNFS_MULT_111(lane));
- writel(0, tcphy->base + TX_TXCC_CPOST_MULT_10(lane));
- writel(0, tcphy->base + TX_TXCC_CPOST_MULT_01(lane));
- writel(0, tcphy->base + TX_TXCC_CPOST_MULT_00(lane));
- writel(0, tcphy->base + TX_TXCC_CPOST_MULT_11(lane));
-
- writel(0x128, tcphy->base + TX_TXCC_CAL_SCLR_MULT(lane));
- writel(0x400, tcphy->base + TX_DIAG_TX_DRV(lane));
-
- rdata = readl(tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
- rdata = (rdata & 0x8fff) | 0x6000;
- writel(rdata, tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
+ writel(tcphy->config[swing][pre_emp].swing,
+ tcphy->base + TX_TXCC_MGNFS_MULT_000(lane));
+ writel(tcphy->config[swing][pre_emp].pe,
+ tcphy->base + TX_TXCC_CPOST_MULT_00(lane));
+
+ if (swing == 2 && pre_emp == 0 && link_rate != 540000) {
+ writel(0x700, tcphy->base + TX_DIAG_TX_DRV(lane));
+ writel(0x13c, tcphy->base + TX_TXCC_CAL_SCLR_MULT(lane));
+ } else {
+ writel(0x128, tcphy->base + TX_TXCC_CAL_SCLR_MULT(lane));
+ writel(0x0400, tcphy->base + TX_DIAG_TX_DRV(lane));
+ }
+
+ val = readl(tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
+ val = val & 0x8fff;
+ switch (link_rate) {
+ case 540000:
+ val |= (4 << 12);
+ break;
+ case 162000:
+ case 270000:
+ default:
+ val |= (6 << 12);
+ break;
+ }
+ writel(val, tcphy->base + XCVR_DIAG_PLLDRC_CTRL(lane));
}
static inline int property_enable(struct rockchip_typec_phy *tcphy,
@@ -687,30 +794,33 @@ static int tcphy_phy_init(struct rockchip_typec_phy *tcphy, u8 mode)
tcphy_cfg_24m(tcphy);
if (mode == MODE_DFP_DP) {
- tcphy_cfg_dp_pll(tcphy);
+ tcphy_cfg_dp_pll(tcphy, DP_DEFAULT_RATE);
for (i = 0; i < 4; i++)
- tcphy_dp_cfg_lane(tcphy, i);
+ tcphy_dp_cfg_lane(tcphy, DP_DEFAULT_RATE, 0, 0, i);
writel(PIN_ASSIGN_C_E, tcphy->base + PMA_LANE_CFG);
} else {
tcphy_cfg_usb3_pll(tcphy);
- tcphy_cfg_dp_pll(tcphy);
+ tcphy_cfg_dp_pll(tcphy, DP_DEFAULT_RATE);
if (tcphy->flip) {
tcphy_tx_usb3_cfg_lane(tcphy, 3);
tcphy_rx_usb3_cfg_lane(tcphy, 2);
- tcphy_dp_cfg_lane(tcphy, 0);
- tcphy_dp_cfg_lane(tcphy, 1);
+ tcphy_dp_cfg_lane(tcphy, DP_DEFAULT_RATE, 0, 0, 0);
+ tcphy_dp_cfg_lane(tcphy, DP_DEFAULT_RATE, 0, 0, 1);
} else {
tcphy_tx_usb3_cfg_lane(tcphy, 0);
tcphy_rx_usb3_cfg_lane(tcphy, 1);
- tcphy_dp_cfg_lane(tcphy, 2);
- tcphy_dp_cfg_lane(tcphy, 3);
+ tcphy_dp_cfg_lane(tcphy, DP_DEFAULT_RATE, 0, 0, 2);
+ tcphy_dp_cfg_lane(tcphy, DP_DEFAULT_RATE, 0, 0, 3);
}
writel(PIN_ASSIGN_D_F, tcphy->base + PMA_LANE_CFG);
}
- writel(DP_MODE_ENTER_A2, tcphy->base + DP_MODE_CTL);
+ val = readl(tcphy->base + DP_MODE_CTL);
+ val &= ~DP_MODE_MASK;
+ val |= DP_MODE_ENTER_A2 | DP_LINK_RESET_DEASSERTED;
+ writel(val, tcphy->base + DP_MODE_CTL);
reset_control_deassert(tcphy->uphy_rst);
@@ -946,7 +1056,7 @@ static int rockchip_dp_phy_power_on(struct phy *phy)
property_enable(tcphy, &cfg->uphy_dp_sel, 1);
ret = readx_poll_timeout(readl, tcphy->base + DP_MODE_CTL,
- val, val & DP_MODE_A2, 1000,
+ val, val & DP_MODE_A2_ACK, 1000,
PHY_MODE_SET_TIMEOUT);
if (ret < 0) {
dev_err(tcphy->dev, "failed to wait TCPHY enter A2\n");
@@ -955,13 +1065,19 @@ static int rockchip_dp_phy_power_on(struct phy *phy)
tcphy_dp_aux_calibration(tcphy);
- writel(DP_MODE_ENTER_A0, tcphy->base + DP_MODE_CTL);
+ /* enter A0 mode */
+ val = readl(tcphy->base + DP_MODE_CTL);
+ val &= ~DP_MODE_MASK;
+ val |= DP_MODE_ENTER_A0;
+ writel(val, tcphy->base + DP_MODE_CTL);
ret = readx_poll_timeout(readl, tcphy->base + DP_MODE_CTL,
- val, val & DP_MODE_A0, 1000,
+ val, val & DP_MODE_A0_ACK, 1000,
PHY_MODE_SET_TIMEOUT);
if (ret < 0) {
- writel(DP_MODE_ENTER_A2, tcphy->base + DP_MODE_CTL);
+ val &= ~DP_MODE_MASK;
+ val |= DP_MODE_ENTER_A2;
+ writel(val, tcphy->base + DP_MODE_CTL);
dev_err(tcphy->dev, "failed to wait TCPHY enter A0\n");
goto power_on_finish;
}
@@ -979,6 +1095,7 @@ unlock_ret:
static int rockchip_dp_phy_power_off(struct phy *phy)
{
struct rockchip_typec_phy *tcphy = phy_get_drvdata(phy);
+ u32 val;
mutex_lock(&tcphy->lock);
@@ -987,7 +1104,10 @@ static int rockchip_dp_phy_power_off(struct phy *phy)
tcphy->mode &= ~MODE_DFP_DP;
- writel(DP_MODE_ENTER_A2, tcphy->base + DP_MODE_CTL);
+ val = readl(tcphy->base + DP_MODE_CTL);
+ val &= ~DP_MODE_MASK;
+ val |= DP_MODE_ENTER_A2;
+ writel(val, tcphy->base + DP_MODE_CTL);
if (tcphy->mode == MODE_DISCONNECT)
tcphy_phy_deinit(tcphy);
@@ -1003,6 +1123,30 @@ static const struct phy_ops rockchip_dp_phy_ops = {
.owner = THIS_MODULE,
};
+static int typec_dp_phy_config(struct phy *phy, int link_rate,
+ int lanes, u8 swing, u8 pre_emp)
+{
+ struct rockchip_typec_phy *tcphy = phy_get_drvdata(phy);
+ u8 i;
+
+ tcphy_cfg_dp_pll(tcphy, link_rate);
+
+ if (tcphy->mode == MODE_DFP_DP) {
+ for (i = 0; i < 4; i++)
+ tcphy_dp_cfg_lane(tcphy, link_rate, swing, pre_emp, i);
+ } else {
+ if (tcphy->flip) {
+ tcphy_dp_cfg_lane(tcphy, link_rate, swing, pre_emp, 0);
+ tcphy_dp_cfg_lane(tcphy, link_rate, swing, pre_emp, 1);
+ } else {
+ tcphy_dp_cfg_lane(tcphy, link_rate, swing, pre_emp, 2);
+ tcphy_dp_cfg_lane(tcphy, link_rate, swing, pre_emp, 3);
+ }
+ }
+
+ return 0;
+}
+
static int tcphy_get_param(struct device *dev,
struct usb3phy_reg *reg,
const char *name)
@@ -1100,6 +1244,16 @@ static int tcphy_parse_dt(struct rockchip_typec_phy *tcphy,
return PTR_ERR(tcphy->tcphy_rst);
}
+ /*
+ * check if phy_config pass from dts, if no,
+ * use default phy config value.
+ */
+ ret = of_property_read_u32_array(dev->of_node, "rockchip,phy-config",
+ (u32 *)tcphy->config, sizeof(tcphy->config) / sizeof(u32));
+ if (ret)
+ memcpy(tcphy->config, tcphy_default_config,
+ sizeof(tcphy->config));
+
return 0;
}
@@ -1156,6 +1310,7 @@ static int rockchip_typec_phy_probe(struct platform_device *pdev)
}
}
+ tcphy->typec_phy_config = typec_dp_phy_config;
pm_runtime_enable(dev);
for_each_available_child_of_node(np, child_np) {
diff --git a/include/soc/rockchip/rockchip_phy_typec.h b/include/soc/rockchip/rockchip_phy_typec.h
index b13d01368b76..51270e4f85d7 100644
--- a/include/soc/rockchip/rockchip_phy_typec.h
+++ b/include/soc/rockchip/rockchip_phy_typec.h
@@ -23,6 +23,11 @@ struct rockchip_usb3phy_port_cfg {
struct usb3phy_reg uphy_dp_sel;
};
+struct phy_config {
+ int swing;
+ int pe;
+};
+
struct rockchip_typec_phy {
struct device *dev;
void __iomem *base;
@@ -39,6 +44,9 @@ struct rockchip_typec_phy {
bool flip;
u8 mode;
+ struct phy_config config[3][4];
+ int (*typec_phy_config)(struct phy *phy, int link_rate,
+ int lanes, u8 swing, u8 pre_emp);
};
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-16 18:25:23 +0000