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Message-Id: <20241021-sar2130p-phys-v2-4-d883acf170f7@linaro.org>
Date: Mon, 21 Oct 2024 13:33:10 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Vinod Koul <vkoul@...nel.org>,
Kishon Vijay Abraham I <kishon@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: Johan Hovold <johan+linaro@...nel.org>, linux-arm-msm@...r.kernel.org,
linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 4/6] phy: qualcomm: qmp-pcie: split PCS_LANE1 region
The PCS_LANE1 region isn't a part of the PCS_PCIE region. It was handled
this way as it simplified handled of devices with the old bindings.
Nowadays it can be handled as is, without hacks.
Split the PCS_LANE1 region from the PCS_PCIE / PCS_MISC region space.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 32 ++++++++++++++++++----
drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h | 5 ++--
drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v5_20.h | 5 ++--
3 files changed, 33 insertions(+), 9 deletions(-)
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 873f2f9844c66d7bd0b3bb3ab4bbd8be9a37cebd..1ca1f21b1cc225f435da9c775c97dfa142117f95 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -1773,7 +1773,7 @@ static const struct qmp_phy_init_tbl sdx55_qmp_pcie_rc_pcs_misc_tbl[] = {
QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_PCIE_OSC_DTCT_ACTIONS, 0x00),
};
-static const struct qmp_phy_init_tbl sdx55_qmp_pcie_ep_pcs_misc_tbl[] = {
+static const struct qmp_phy_init_tbl sdx55_qmp_pcie_ep_pcs_lane1_tbl[] = {
QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_LANE1_INSIG_SW_CTRL2, 0x00),
QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_LANE1_INSIG_MX_CTRL2, 0x00),
};
@@ -1907,6 +1907,9 @@ static const struct qmp_phy_init_tbl sdx65_qmp_pcie_pcs_misc_tbl[] = {
QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_G4_EQ_CONFIG2, 0x0d),
QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_G4_EQ_CONFIG5, 0x02),
QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_G4_PRE_GAIN, 0x2e),
+};
+
+static const struct qmp_phy_init_tbl sdx65_qmp_pcie_pcs_lane1_tbl[] = {
QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_LANE1_INSIG_SW_CTRL2, 0x00),
QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_LANE1_INSIG_MX_CTRL2, 0x00),
};
@@ -2582,8 +2585,6 @@ static const struct qmp_phy_init_tbl sa8775p_qmp_gen4_pcie_rc_pcs_misc_tbl[] = {
static const struct qmp_phy_init_tbl sa8775p_qmp_gen4x2_pcie_pcs_alt_tbl[] = {
QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_EQ_CONFIG4, 0x16),
QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_EQ_CONFIG5, 0x22),
- QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_LANE1_INSIG_SW_CTRL2, 0x00),
- QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_LANE1_INSIG_MX_CTRL2, 0x00),
QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_G3S2_PRE_GAIN, 0x2e),
QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_RX_SIGDET_LVL, 0x66),
};
@@ -2728,6 +2729,7 @@ struct qmp_pcie_offsets {
u16 serdes;
u16 pcs;
u16 pcs_misc;
+ u16 pcs_lane1;
u16 tx;
u16 rx;
u16 tx2;
@@ -2752,6 +2754,8 @@ struct qmp_phy_cfg_tbls {
int pcs_num;
const struct qmp_phy_init_tbl *pcs_misc;
int pcs_misc_num;
+ const struct qmp_phy_init_tbl *pcs_lane1;
+ int pcs_lane1_num;
const struct qmp_phy_init_tbl *ln_shrd;
int ln_shrd_num;
};
@@ -2811,6 +2815,7 @@ struct qmp_pcie {
void __iomem *serdes;
void __iomem *pcs;
void __iomem *pcs_misc;
+ void __iomem *pcs_lane1;
void __iomem *tx;
void __iomem *rx;
void __iomem *tx2;
@@ -2927,6 +2932,7 @@ static const struct qmp_pcie_offsets qmp_pcie_offsets_v4_20 = {
.serdes = 0x1000,
.pcs = 0x1200,
.pcs_misc = 0x1600,
+ .pcs_lane1 = 0x1e00,
.tx = 0x0000,
.rx = 0x0200,
.tx2 = 0x0800,
@@ -2957,6 +2963,7 @@ static const struct qmp_pcie_offsets qmp_pcie_offsets_v5_20 = {
.serdes = 0x1000,
.pcs = 0x1200,
.pcs_misc = 0x1400,
+ .pcs_lane1 = 0x1e00,
.tx = 0x0000,
.rx = 0x0200,
.tx2 = 0x0800,
@@ -3440,8 +3447,8 @@ static const struct qmp_phy_cfg sdx55_qmp_pciephy_cfg = {
.tbls_ep = &(const struct qmp_phy_cfg_tbls) {
.serdes = sdx55_qmp_pcie_ep_serdes_tbl,
.serdes_num = ARRAY_SIZE(sdx55_qmp_pcie_ep_serdes_tbl),
- .pcs_misc = sdx55_qmp_pcie_ep_pcs_misc_tbl,
- .pcs_misc_num = ARRAY_SIZE(sdx55_qmp_pcie_ep_pcs_misc_tbl),
+ .pcs_lane1 = sdx55_qmp_pcie_ep_pcs_lane1_tbl,
+ .pcs_lane1_num = ARRAY_SIZE(sdx55_qmp_pcie_ep_pcs_lane1_tbl),
},
.reset_list = sdm845_pciephy_reset_l,
@@ -3540,6 +3547,8 @@ static const struct qmp_phy_cfg sdx65_qmp_pciephy_cfg = {
.pcs_num = ARRAY_SIZE(sdx65_qmp_pcie_pcs_tbl),
.pcs_misc = sdx65_qmp_pcie_pcs_misc_tbl,
.pcs_misc_num = ARRAY_SIZE(sdx65_qmp_pcie_pcs_misc_tbl),
+ .pcs_lane1 = sdx65_qmp_pcie_pcs_lane1_tbl,
+ .pcs_lane1_num = ARRAY_SIZE(sdx65_qmp_pcie_pcs_lane1_tbl),
},
.reset_list = sdm845_pciephy_reset_l,
.num_resets = ARRAY_SIZE(sdm845_pciephy_reset_l),
@@ -3739,6 +3748,8 @@ static const struct qmp_phy_cfg sa8775p_qmp_gen4x2_pciephy_cfg = {
.pcs_num = ARRAY_SIZE(sa8775p_qmp_gen4x2_pcie_pcs_alt_tbl),
.pcs_misc = sa8775p_qmp_gen4_pcie_pcs_misc_tbl,
.pcs_misc_num = ARRAY_SIZE(sa8775p_qmp_gen4_pcie_pcs_misc_tbl),
+ .pcs_lane1 = sdx65_qmp_pcie_pcs_lane1_tbl,
+ .pcs_lane1_num = ARRAY_SIZE(sdx65_qmp_pcie_pcs_lane1_tbl),
},
.tbls_rc = &(const struct qmp_phy_cfg_tbls) {
@@ -3945,6 +3956,7 @@ static void qmp_pcie_init_registers(struct qmp_pcie *qmp, const struct qmp_phy_c
void __iomem *rx2 = qmp->rx2;
void __iomem *pcs = qmp->pcs;
void __iomem *pcs_misc = qmp->pcs_misc;
+ void __iomem *pcs_lane1 = qmp->pcs_lane1;
void __iomem *ln_shrd = qmp->ln_shrd;
if (!tbls)
@@ -3969,6 +3981,7 @@ static void qmp_pcie_init_registers(struct qmp_pcie *qmp, const struct qmp_phy_c
qmp_configure(qmp->dev, pcs, tbls->pcs, tbls->pcs_num);
qmp_configure(qmp->dev, pcs_misc, tbls->pcs_misc, tbls->pcs_misc_num);
+ qmp_configure(qmp->dev, pcs_lane1, tbls->pcs_lane1, tbls->pcs_lane1_num);
if (cfg->lanes >= 4 && qmp->tcsr_4ln_config) {
qmp_configure(qmp->dev, serdes, cfg->serdes_4ln_tbl,
@@ -4420,6 +4433,14 @@ static int qmp_pcie_parse_dt_legacy(struct qmp_pcie *qmp, struct device_node *np
}
}
+ /*
+ * For all platforms where legacy bindings existed, PCS_LANE1 was
+ * mapped as a part of the PCS_MISC region.
+ */
+ if (!IS_ERR(qmp->pcs_misc) && cfg->offsets->pcs_lane1 != 0)
+ qmp->pcs_lane1 = qmp->pcs_misc +
+ (cfg->offsets->pcs_lane1 - cfg->offsets->pcs_misc);
+
clk = devm_get_clk_from_child(dev, np, NULL);
if (IS_ERR(clk)) {
return dev_err_probe(dev, PTR_ERR(clk),
@@ -4487,6 +4508,7 @@ static int qmp_pcie_parse_dt(struct qmp_pcie *qmp)
qmp->serdes = base + offs->serdes;
qmp->pcs = base + offs->pcs;
qmp->pcs_misc = base + offs->pcs_misc;
+ qmp->pcs_lane1 = base + offs->pcs_lane1;
qmp->tx = base + offs->tx;
qmp->rx = base + offs->rx;
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h
index ac872a9eff9a8fe7fc3307759288aee15d17bd24..ab892d1067c219e8db0ba0591921b38a9cebebe7 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v4_20.h
@@ -13,7 +13,8 @@
#define QPHY_V4_20_PCS_PCIE_G4_RXEQEVAL_TIME 0x0f4
#define QPHY_V4_20_PCS_PCIE_G4_EQ_CONFIG2 0x0fc
#define QPHY_V4_20_PCS_PCIE_G4_EQ_CONFIG5 0x108
-#define QPHY_V4_20_PCS_LANE1_INSIG_SW_CTRL2 0x824
-#define QPHY_V4_20_PCS_LANE1_INSIG_MX_CTRL2 0x828
+
+#define QPHY_V4_20_PCS_LANE1_INSIG_SW_CTRL2 0x024
+#define QPHY_V4_20_PCS_LANE1_INSIG_MX_CTRL2 0x028
#endif
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v5_20.h b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v5_20.h
index cdf8c04ea078a985be82d561ad0918dfdece9987..283d63c8159338b57a5026b6c2a86e3cce21097c 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v5_20.h
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v5_20.h
@@ -17,7 +17,8 @@
#define QPHY_V5_20_PCS_PCIE_G4_EQ_CONFIG5 0x108
#define QPHY_V5_20_PCS_PCIE_G4_PRE_GAIN 0x15c
#define QPHY_V5_20_PCS_PCIE_RX_MARGINING_CONFIG3 0x184
-#define QPHY_V5_20_PCS_LANE1_INSIG_SW_CTRL2 0xa24
-#define QPHY_V5_20_PCS_LANE1_INSIG_MX_CTRL2 0xa28
+
+#define QPHY_V5_20_PCS_LANE1_INSIG_SW_CTRL2 0x024
+#define QPHY_V5_20_PCS_LANE1_INSIG_MX_CTRL2 0x028
#endif
--
2.39.5
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