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path: root/drivers/phy/qualcomm/phy-qcom-qmp.c
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Diffstat (limited to 'drivers/phy/qualcomm/phy-qcom-qmp.c')
-rw-r--r--drivers/phy/qualcomm/phy-qcom-qmp.c162
1 files changed, 141 insertions, 21 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index 78ca62897784..e17f0351ccc2 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -59,6 +59,7 @@
#define QSERDES_COM_PLL_RCTRL_MODE1 0x088
#define QSERDES_COM_PLL_CCTRL_MODE0 0x090
#define QSERDES_COM_PLL_CCTRL_MODE1 0x094
+#define QSERDES_COM_BIAS_EN_CTRL_BY_PSM 0x0a8
#define QSERDES_COM_SYSCLK_EN_SEL 0x0ac
#define QSERDES_COM_RESETSM_CNTRL 0x0b4
#define QSERDES_COM_RESTRIM_CTRL 0x0bc
@@ -143,6 +144,11 @@
#define QPHY_LOCK_DETECT_CONFIG3 0x88
#define QPHY_PWRUP_RESET_DLY_TIME_AUXCLK 0xa0
#define QPHY_LP_WAKEUP_DLY_TIME_AUXCLK 0xa4
+#define QPHY_PLL_LOCK_CHK_DLY_TIME_AUXCLK_LSB 0x1A8
+#define QPHY_OSC_DTCT_ACTIONS 0x1AC
+#define QPHY_RX_SIGDET_LVL 0x1D8
+#define QPHY_L1SS_WAKEUP_DLY_TIME_AUXCLK_LSB 0x1DC
+#define QPHY_L1SS_WAKEUP_DLY_TIME_AUXCLK_MSB 0x1E0
/* QPHY_SW_RESET bit */
#define SW_RESET BIT(0)
@@ -382,6 +388,85 @@ static const struct qmp_phy_init_tbl msm8996_usb3_pcs_tbl[] = {
QMP_PHY_INIT_CFG(QPHY_POWER_STATE_CONFIG2, 0x08),
};
+static const struct qmp_phy_init_tbl ipq8074_pcie_serdes_tbl[] = {
+ QMP_PHY_INIT_CFG(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x18),
+ QMP_PHY_INIT_CFG(QSERDES_COM_CLK_ENABLE1, 0x10),
+ QMP_PHY_INIT_CFG(QSERDES_COM_BG_TRIM, 0xf),
+ QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP_EN, 0x1),
+ QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_MAP, 0x0),
+ QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_TIMER1, 0x1f),
+ QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_TIMER2, 0x3f),
+ QMP_PHY_INIT_CFG(QSERDES_COM_CMN_CONFIG, 0x6),
+ QMP_PHY_INIT_CFG(QSERDES_COM_PLL_IVCO, 0xf),
+ QMP_PHY_INIT_CFG(QSERDES_COM_HSCLK_SEL, 0x0),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SVS_MODE_CLK_SEL, 0x1),
+ QMP_PHY_INIT_CFG(QSERDES_COM_CORE_CLK_EN, 0x20),
+ QMP_PHY_INIT_CFG(QSERDES_COM_CORECLK_DIV, 0xa),
+ QMP_PHY_INIT_CFG(QSERDES_COM_RESETSM_CNTRL, 0x20),
+ QMP_PHY_INIT_CFG(QSERDES_COM_BG_TIMER, 0xa),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SYSCLK_EN_SEL, 0xa),
+ QMP_PHY_INIT_CFG(QSERDES_COM_DEC_START_MODE0, 0x82),
+ QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START3_MODE0, 0x3),
+ QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START2_MODE0, 0x55),
+ QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START1_MODE0, 0x55),
+ QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP3_MODE0, 0x0),
+ QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP2_MODE0, 0xD),
+ QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP1_MODE0, 0xD04),
+ QMP_PHY_INIT_CFG(QSERDES_COM_CLK_SELECT, 0x33),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SYS_CLK_CTRL, 0x2),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SYSCLK_BUF_ENABLE, 0x1f),
+ QMP_PHY_INIT_CFG(QSERDES_COM_CP_CTRL_MODE0, 0xb),
+ QMP_PHY_INIT_CFG(QSERDES_COM_PLL_RCTRL_MODE0, 0x16),
+ QMP_PHY_INIT_CFG(QSERDES_COM_PLL_CCTRL_MODE0, 0x28),
+ QMP_PHY_INIT_CFG(QSERDES_COM_INTEGLOOP_GAIN1_MODE0, 0x0),
+ QMP_PHY_INIT_CFG(QSERDES_COM_INTEGLOOP_GAIN0_MODE0, 0x80),
+ QMP_PHY_INIT_CFG(QSERDES_COM_BIAS_EN_CTRL_BY_PSM, 0x1),
+ QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_CTRL, 0xa),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SSC_EN_CENTER, 0x1),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SSC_PER1, 0x31),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SSC_PER2, 0x1),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SSC_ADJ_PER1, 0x2),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SSC_ADJ_PER2, 0x0),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SSC_STEP_SIZE1, 0x2f),
+ QMP_PHY_INIT_CFG(QSERDES_COM_SSC_STEP_SIZE2, 0x19),
+ QMP_PHY_INIT_CFG(QSERDES_COM_CLK_EP_DIV, 0x19),
+ QMP_PHY_INIT_CFG(QSERDES_RX_SIGDET_CNTRL, 0x7),
+};
+
+static const struct qmp_phy_init_tbl ipq8074_pcie_tx_tbl[] = {
+ QMP_PHY_INIT_CFG(QSERDES_TX_HIGHZ_TRANSCEIVEREN_BIAS_DRVR_EN, 0x45),
+ QMP_PHY_INIT_CFG(QSERDES_TX_LANE_MODE, 0x6),
+ QMP_PHY_INIT_CFG(QSERDES_TX_RES_CODE_LANE_OFFSET, 0x2),
+ QMP_PHY_INIT_CFG(QSERDES_TX_RCV_DETECT_LVL_2, 0x12),
+};
+
+static const struct qmp_phy_init_tbl ipq8074_pcie_rx_tbl[] = {
+ QMP_PHY_INIT_CFG(QSERDES_RX_SIGDET_ENABLES, 0x1c),
+ QMP_PHY_INIT_CFG(QSERDES_RX_SIGDET_DEGLITCH_CNTRL, 0x14),
+ QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL2, 0x1),
+ QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL3, 0x0),
+ QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL4, 0xdb),
+ QMP_PHY_INIT_CFG(QSERDES_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x4b),
+ QMP_PHY_INIT_CFG(QSERDES_RX_UCDR_SO_GAIN, 0x4),
+ QMP_PHY_INIT_CFG(QSERDES_RX_UCDR_SO_GAIN_HALF, 0x4),
+};
+
+static const struct qmp_phy_init_tbl ipq8074_pcie_pcs_tbl[] = {
+ QMP_PHY_INIT_CFG(QPHY_ENDPOINT_REFCLK_DRIVE, 0x4),
+ QMP_PHY_INIT_CFG(QPHY_OSC_DTCT_ACTIONS, 0x0),
+ QMP_PHY_INIT_CFG(QPHY_PWRUP_RESET_DLY_TIME_AUXCLK, 0x40),
+ QMP_PHY_INIT_CFG(QPHY_L1SS_WAKEUP_DLY_TIME_AUXCLK_MSB, 0x0),
+ QMP_PHY_INIT_CFG(QPHY_L1SS_WAKEUP_DLY_TIME_AUXCLK_LSB, 0x40),
+ QMP_PHY_INIT_CFG(QPHY_PLL_LOCK_CHK_DLY_TIME_AUXCLK_LSB, 0x0),
+ QMP_PHY_INIT_CFG(QPHY_LP_WAKEUP_DLY_TIME_AUXCLK, 0x40),
+ QMP_PHY_INIT_CFG_L(QPHY_PLL_LOCK_CHK_DLY_TIME, 0x73),
+ QMP_PHY_INIT_CFG(QPHY_RX_SIGDET_LVL, 0x99),
+ QMP_PHY_INIT_CFG(QPHY_TXDEEMPH_M6DB_V0, 0x15),
+ QMP_PHY_INIT_CFG(QPHY_TXDEEMPH_M3P5DB_V0, 0xe),
+ QMP_PHY_INIT_CFG_L(QPHY_SW_RESET, 0x0),
+ QMP_PHY_INIT_CFG_L(QPHY_START_CTRL, 0x3),
+};
+
/* struct qmp_phy_cfg - per-PHY initialization config */
struct qmp_phy_cfg {
/* phy-type - PCIE/UFS/USB */
@@ -580,6 +665,42 @@ static const struct qmp_phy_cfg msm8996_usb3phy_cfg = {
.mask_pcs_ready = PHYSTATUS,
};
+/* list of resets */
+static const char * const ipq8074_pciephy_reset_l[] = {
+ "phy", "common",
+};
+
+static const struct qmp_phy_cfg ipq8074_pciephy_cfg = {
+ .type = PHY_TYPE_PCIE,
+ .nlanes = 1,
+
+ .serdes_tbl = ipq8074_pcie_serdes_tbl,
+ .serdes_tbl_num = ARRAY_SIZE(ipq8074_pcie_serdes_tbl),
+ .tx_tbl = ipq8074_pcie_tx_tbl,
+ .tx_tbl_num = ARRAY_SIZE(ipq8074_pcie_tx_tbl),
+ .rx_tbl = ipq8074_pcie_rx_tbl,
+ .rx_tbl_num = ARRAY_SIZE(ipq8074_pcie_rx_tbl),
+ .pcs_tbl = ipq8074_pcie_pcs_tbl,
+ .pcs_tbl_num = ARRAY_SIZE(ipq8074_pcie_pcs_tbl),
+ .clk_list = NULL,
+ .num_clks = 0,
+ .reset_list = ipq8074_pciephy_reset_l,
+ .num_resets = ARRAY_SIZE(ipq8074_pciephy_reset_l),
+ .vreg_list = NULL,
+ .num_vregs = 0,
+ .regs = pciephy_regs_layout,
+
+ .start_ctrl = SERDES_START | PCS_START,
+ .pwrdn_ctrl = SW_PWRDN | REFCLK_DRV_DSBL,
+ .mask_pcs_ready = PHYSTATUS,
+
+ .has_phy_com_ctrl = false,
+ .has_lane_rst = false,
+ .has_pwrdn_delay = true,
+ .pwrdn_delay_min = 995, /* us */
+ .pwrdn_delay_max = 1005, /* us */
+};
+
static void qcom_qmp_phy_configure(void __iomem *base,
const unsigned int *regs,
const struct qmp_phy_init_tbl tbl[],
@@ -654,8 +775,6 @@ static int qcom_qmp_phy_com_init(struct qcom_qmp *qmp)
if (ret) {
dev_err(qmp->dev, "%s reset deassert failed\n",
qmp->cfg->reset_list[i]);
- while (--i >= 0)
- reset_control_assert(qmp->resets[i]);
goto err_rst;
}
}
@@ -684,7 +803,7 @@ static int qcom_qmp_phy_com_init(struct qcom_qmp *qmp)
if (ret) {
dev_err(qmp->dev,
"phy common block init timed-out\n");
- goto err_com_init;
+ goto err_rst;
}
}
@@ -692,11 +811,11 @@ static int qcom_qmp_phy_com_init(struct qcom_qmp *qmp)
return 0;
-err_com_init:
+err_rst:
while (--i >= 0)
reset_control_assert(qmp->resets[i]);
-err_rst:
mutex_unlock(&qmp->phy_mutex);
+
return ret;
}
@@ -749,14 +868,13 @@ static int qcom_qmp_phy_init(struct phy *phy)
if (ret) {
dev_err(qmp->dev, "failed to enable %s clk, err=%d\n",
qmp->cfg->clk_list[i], ret);
- while (--i >= 0)
- clk_disable_unprepare(qmp->clks[i]);
+ goto err_clk;
}
}
ret = qcom_qmp_phy_com_init(qmp);
if (ret)
- goto err_com_init;
+ goto err_clk;
if (cfg->has_lane_rst) {
ret = reset_control_deassert(qphy->lane_rst);
@@ -804,7 +922,7 @@ err_pcs_ready:
reset_control_assert(qphy->lane_rst);
err_lane_rst:
qcom_qmp_phy_com_exit(qmp);
-err_com_init:
+err_clk:
while (--i >= 0)
clk_disable_unprepare(qmp->clks[i]);
@@ -925,29 +1043,28 @@ static int qcom_qmp_phy_clk_init(struct device *dev)
* clk | +-------+ | +-----+
* +---------------+
*/
-static int phy_pipe_clk_register(struct qcom_qmp *qmp, int id)
+static int phy_pipe_clk_register(struct qcom_qmp *qmp, struct device_node *np)
{
- char name[24];
struct clk_fixed_rate *fixed;
struct clk_init_data init = { };
+ int ret;
- switch (qmp->cfg->type) {
- case PHY_TYPE_USB3:
- snprintf(name, sizeof(name), "usb3_phy_pipe_clk_src");
- break;
- case PHY_TYPE_PCIE:
- snprintf(name, sizeof(name), "pcie_%d_pipe_clk_src", id);
- break;
- default:
+ if ((qmp->cfg->type != PHY_TYPE_USB3) &&
+ (qmp->cfg->type != PHY_TYPE_PCIE)) {
/* not all phys register pipe clocks, so return success */
return 0;
}
+ ret = of_property_read_string(np, "clock-output-names", &init.name);
+ if (ret) {
+ dev_err(qmp->dev, "%s: No clock-output-names\n", np->name);
+ return ret;
+ }
+
fixed = devm_kzalloc(qmp->dev, sizeof(*fixed), GFP_KERNEL);
if (!fixed)
return -ENOMEM;
- init.name = name;
init.ops = &clk_fixed_rate_ops;
/* controllers using QMP phys use 125MHz pipe clock interface */
@@ -1049,6 +1166,9 @@ static const struct of_device_id qcom_qmp_phy_of_match_table[] = {
}, {
.compatible = "qcom,msm8996-qmp-usb3-phy",
.data = &msm8996_usb3phy_cfg,
+ }, {
+ .compatible = "qcom,ipq8074-qmp-pcie-phy",
+ .data = &ipq8074_pciephy_cfg,
},
{ },
};
@@ -1122,7 +1242,7 @@ static int qcom_qmp_phy_probe(struct platform_device *pdev)
* Register the pipe clock provided by phy.
* See function description to see details of this pipe clock.
*/
- ret = phy_pipe_clk_register(qmp, id);
+ ret = phy_pipe_clk_register(qmp, child);
if (ret) {
dev_err(qmp->dev,
"failed to register pipe clock source\n");
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.