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authorTakashi Iwai <tiwai@suse.de>2022-04-19 17:26:01 +0200
committerTakashi Iwai <tiwai@suse.de>2022-04-19 17:26:01 +0200
commit0aea30a07ec6b50de0fc5f5b2ec34a68ead86b61 (patch)
treeee7d7d116570f39e47399c8f691a5a7565077eeb /drivers/pci/controller/dwc
parentALSA: usb-audio: add mapping for MSI MAG X570S Torpedo MAX. (diff)
parentfirmware: cs_dsp: Fix overrun of unterminated control name string (diff)
downloadwireguard-linux-0aea30a07ec6b50de0fc5f5b2ec34a68ead86b61.tar.xz
wireguard-linux-0aea30a07ec6b50de0fc5f5b2ec34a68ead86b61.zip
Merge tag 'asoc-fix-v5.18-rc3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.18 A collection of fixes that came in since the merge window, plus one new device ID for an x86 laptop. Nothing that really stands out with particularly big impact outside of the affected device.
Diffstat (limited to 'drivers/pci/controller/dwc')
-rw-r--r--drivers/pci/controller/dwc/pci-imx6.c19
-rw-r--r--drivers/pci/controller/dwc/pci-keystone.c8
-rw-r--r--drivers/pci/controller/dwc/pci-meson.c16
-rw-r--r--drivers/pci/controller/dwc/pcie-designware-host.c7
-rw-r--r--drivers/pci/controller/dwc/pcie-fu740.c57
-rw-r--r--drivers/pci/controller/dwc/pcie-kirin.c34
-rw-r--r--drivers/pci/controller/dwc/pcie-qcom.c95
-rw-r--r--drivers/pci/controller/dwc/pcie-uniphier-ep.c142
8 files changed, 281 insertions, 97 deletions
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 6974bd5aa116..6619e3caffe2 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -453,10 +453,6 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie)
case IMX7D:
break;
case IMX8MM:
- ret = clk_prepare_enable(imx6_pcie->pcie_aux);
- if (ret)
- dev_err(dev, "unable to enable pcie_aux clock\n");
- break;
case IMX8MQ:
ret = clk_prepare_enable(imx6_pcie->pcie_aux);
if (ret) {
@@ -809,9 +805,7 @@ static int imx6_pcie_start_link(struct dw_pcie *pci)
/* Start LTSSM. */
imx6_pcie_ltssm_enable(dev);
- ret = dw_pcie_wait_for_link(pci);
- if (ret)
- goto err_reset_phy;
+ dw_pcie_wait_for_link(pci);
if (pci->link_gen == 2) {
/* Allow Gen2 mode after the link is up. */
@@ -847,11 +841,7 @@ static int imx6_pcie_start_link(struct dw_pcie *pci)
}
/* Make sure link training is finished as well! */
- ret = dw_pcie_wait_for_link(pci);
- if (ret) {
- dev_err(dev, "Failed to bring link up!\n");
- goto err_reset_phy;
- }
+ dw_pcie_wait_for_link(pci);
} else {
dev_info(dev, "Link: Gen2 disabled\n");
}
@@ -923,6 +913,7 @@ static void imx6_pcie_pm_turnoff(struct imx6_pcie *imx6_pcie)
/* Others poke directly at IOMUXC registers */
switch (imx6_pcie->drvdata->variant) {
case IMX6SX:
+ case IMX6QP:
regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
IMX6SX_GPR12_PCIE_PM_TURN_OFF,
IMX6SX_GPR12_PCIE_PM_TURN_OFF);
@@ -983,6 +974,7 @@ static int imx6_pcie_suspend_noirq(struct device *dev)
case IMX8MM:
if (phy_power_off(imx6_pcie->phy))
dev_err(dev, "unable to power off PHY\n");
+ phy_exit(imx6_pcie->phy);
break;
default:
break;
@@ -1252,7 +1244,8 @@ static const struct imx6_pcie_drvdata drvdata[] = {
[IMX6QP] = {
.variant = IMX6QP,
.flags = IMX6_PCIE_FLAG_IMX6_PHY |
- IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE,
+ IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE |
+ IMX6_PCIE_FLAG_SUPPORTS_SUSPEND,
.dbi_length = 0x200,
},
[IMX7D] = {
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 1c2ee4e13f1c..d10e5fd0f83c 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -531,13 +531,13 @@ static void ks_pcie_quirk(struct pci_dev *dev)
struct pci_dev *bridge;
static const struct pci_device_id rc_pci_devids[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_TI, PCIE_RC_K2HK),
- .class = PCI_CLASS_BRIDGE_PCI << 8, .class_mask = ~0, },
+ .class = PCI_CLASS_BRIDGE_PCI_NORMAL, .class_mask = ~0, },
{ PCI_DEVICE(PCI_VENDOR_ID_TI, PCIE_RC_K2E),
- .class = PCI_CLASS_BRIDGE_PCI << 8, .class_mask = ~0, },
+ .class = PCI_CLASS_BRIDGE_PCI_NORMAL, .class_mask = ~0, },
{ PCI_DEVICE(PCI_VENDOR_ID_TI, PCIE_RC_K2L),
- .class = PCI_CLASS_BRIDGE_PCI << 8, .class_mask = ~0, },
+ .class = PCI_CLASS_BRIDGE_PCI_NORMAL, .class_mask = ~0, },
{ PCI_DEVICE(PCI_VENDOR_ID_TI, PCIE_RC_K2G),
- .class = PCI_CLASS_BRIDGE_PCI << 8, .class_mask = ~0, },
+ .class = PCI_CLASS_BRIDGE_PCI_NORMAL, .class_mask = ~0, },
{ 0, },
};
diff --git a/drivers/pci/controller/dwc/pci-meson.c b/drivers/pci/controller/dwc/pci-meson.c
index 686ded034f22..f44bf347904a 100644
--- a/drivers/pci/controller/dwc/pci-meson.c
+++ b/drivers/pci/controller/dwc/pci-meson.c
@@ -313,14 +313,14 @@ static int meson_pcie_rd_own_conf(struct pci_bus *bus, u32 devfn,
* cannot program the PCI_CLASS_DEVICE register, so we must fabricate
* the return value in the config accessors.
*/
- if (where == PCI_CLASS_REVISION && size == 4)
- *val = (PCI_CLASS_BRIDGE_PCI << 16) | (*val & 0xffff);
- else if (where == PCI_CLASS_DEVICE && size == 2)
- *val = PCI_CLASS_BRIDGE_PCI;
- else if (where == PCI_CLASS_DEVICE && size == 1)
- *val = PCI_CLASS_BRIDGE_PCI & 0xff;
- else if (where == PCI_CLASS_DEVICE + 1 && size == 1)
- *val = (PCI_CLASS_BRIDGE_PCI >> 8) & 0xff;
+ if ((where & ~3) == PCI_CLASS_REVISION) {
+ if (size <= 2)
+ *val = (*val & ((1 << (size * 8)) - 1)) << (8 * (where & 3));
+ *val &= ~0xffffff00;
+ *val |= PCI_CLASS_BRIDGE_PCI_NORMAL << 8;
+ if (size <= 2)
+ *val = (*val >> (8 * (where & 3))) & ((1 << (size * 8)) - 1);
+ }
return PCIBIOS_SUCCESSFUL;
}
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index f4755f3a03be..2fa86f32d964 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -362,6 +362,12 @@ int dw_pcie_host_init(struct pcie_port *pp)
if (ret < 0)
return ret;
} else if (pp->has_msi_ctrl) {
+ u32 ctrl, num_ctrls;
+
+ num_ctrls = pp->num_vectors / MAX_MSI_IRQS_PER_CTRL;
+ for (ctrl = 0; ctrl < num_ctrls; ctrl++)
+ pp->irq_mask[ctrl] = ~0;
+
if (!pp->msi_irq) {
pp->msi_irq = platform_get_irq_byname_optional(pdev, "msi");
if (pp->msi_irq < 0) {
@@ -541,7 +547,6 @@ void dw_pcie_setup_rc(struct pcie_port *pp)
/* Initialize IRQ Status array */
for (ctrl = 0; ctrl < num_ctrls; ctrl++) {
- pp->irq_mask[ctrl] = ~0;
dw_pcie_writel_dbi(pci, PCIE_MSI_INTR0_MASK +
(ctrl * MSI_REG_CTRL_BLOCK_SIZE),
pp->irq_mask[ctrl]);
diff --git a/drivers/pci/controller/dwc/pcie-fu740.c b/drivers/pci/controller/dwc/pcie-fu740.c
index 00cde9a248b5..02cc70d8cc06 100644
--- a/drivers/pci/controller/dwc/pcie-fu740.c
+++ b/drivers/pci/controller/dwc/pcie-fu740.c
@@ -181,10 +181,59 @@ static int fu740_pcie_start_link(struct dw_pcie *pci)
{
struct device *dev = pci->dev;
struct fu740_pcie *afp = dev_get_drvdata(dev);
+ u8 cap_exp = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);
+ int ret;
+ u32 orig, tmp;
+
+ /*
+ * Force 2.5GT/s when starting the link, due to some devices not
+ * probing at higher speeds. This happens with the PCIe switch
+ * on the Unmatched board when U-Boot has not initialised the PCIe.
+ * The fix in U-Boot is to force 2.5GT/s, which then gets cleared
+ * by the soft reset done by this driver.
+ */
+ dev_dbg(dev, "cap_exp at %x\n", cap_exp);
+ dw_pcie_dbi_ro_wr_en(pci);
+
+ tmp = dw_pcie_readl_dbi(pci, cap_exp + PCI_EXP_LNKCAP);
+ orig = tmp & PCI_EXP_LNKCAP_SLS;
+ tmp &= ~PCI_EXP_LNKCAP_SLS;
+ tmp |= PCI_EXP_LNKCAP_SLS_2_5GB;
+ dw_pcie_writel_dbi(pci, cap_exp + PCI_EXP_LNKCAP, tmp);
/* Enable LTSSM */
writel_relaxed(0x1, afp->mgmt_base + PCIEX8MGMT_APP_LTSSM_ENABLE);
- return 0;
+
+ ret = dw_pcie_wait_for_link(pci);
+ if (ret) {
+ dev_err(dev, "error: link did not start\n");
+ goto err;
+ }
+
+ tmp = dw_pcie_readl_dbi(pci, cap_exp + PCI_EXP_LNKCAP);
+ if ((tmp & PCI_EXP_LNKCAP_SLS) != orig) {
+ dev_dbg(dev, "changing speed back to original\n");
+
+ tmp &= ~PCI_EXP_LNKCAP_SLS;
+ tmp |= orig;
+ dw_pcie_writel_dbi(pci, cap_exp + PCI_EXP_LNKCAP, tmp);
+
+ tmp = dw_pcie_readl_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL);
+ tmp |= PORT_LOGIC_SPEED_CHANGE;
+ dw_pcie_writel_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL, tmp);
+
+ ret = dw_pcie_wait_for_link(pci);
+ if (ret) {
+ dev_err(dev, "error: link did not start at new speed\n");
+ goto err;
+ }
+ }
+
+ ret = 0;
+err:
+ WARN_ON(ret); /* we assume that errors will be very rare */
+ dw_pcie_dbi_ro_wr_dis(pci);
+ return ret;
}
static int fu740_pcie_host_init(struct pcie_port *pp)
@@ -224,7 +273,7 @@ static int fu740_pcie_host_init(struct pcie_port *pp)
/* Clear hold_phy_rst */
writel_relaxed(0x0, afp->mgmt_base + PCIEX8MGMT_APP_HOLD_PHY_RST);
/* Enable pcieauxclk */
- ret = clk_prepare_enable(afp->pcie_aux);
+ clk_prepare_enable(afp->pcie_aux);
/* Set RC mode */
writel_relaxed(0x4, afp->mgmt_base + PCIEX8MGMT_DEVICE_TYPE);
@@ -259,11 +308,11 @@ static int fu740_pcie_probe(struct platform_device *pdev)
return PTR_ERR(afp->mgmt_base);
/* Fetch GPIOs */
- afp->reset = devm_gpiod_get_optional(dev, "reset-gpios", GPIOD_OUT_LOW);
+ afp->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(afp->reset))
return dev_err_probe(dev, PTR_ERR(afp->reset), "unable to get reset-gpios\n");
- afp->pwren = devm_gpiod_get_optional(dev, "pwren-gpios", GPIOD_OUT_LOW);
+ afp->pwren = devm_gpiod_get_optional(dev, "pwren", GPIOD_OUT_LOW);
if (IS_ERR(afp->pwren))
return dev_err_probe(dev, PTR_ERR(afp->pwren), "unable to get pwren-gpios\n");
diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c
index fa6886d66488..a52cad269f85 100644
--- a/drivers/pci/controller/dwc/pcie-kirin.c
+++ b/drivers/pci/controller/dwc/pcie-kirin.c
@@ -332,9 +332,6 @@ static int hi3660_pcie_phy_init(struct platform_device *pdev,
pcie->phy_priv = phy;
phy->dev = dev;
- /* registers */
- pdev = container_of(dev, struct platform_device, dev);
-
ret = hi3660_pcie_phy_get_clk(phy);
if (ret)
return ret;
@@ -756,22 +753,28 @@ static int __exit kirin_pcie_remove(struct platform_device *pdev)
return 0;
}
+struct kirin_pcie_data {
+ enum pcie_kirin_phy_type phy_type;
+};
+
+static const struct kirin_pcie_data kirin_960_data = {
+ .phy_type = PCIE_KIRIN_INTERNAL_PHY,
+};
+
+static const struct kirin_pcie_data kirin_970_data = {
+ .phy_type = PCIE_KIRIN_EXTERNAL_PHY,
+};
+
static const struct of_device_id kirin_pcie_match[] = {
- {
- .compatible = "hisilicon,kirin960-pcie",
- .data = (void *)PCIE_KIRIN_INTERNAL_PHY
- },
- {
- .compatible = "hisilicon,kirin970-pcie",
- .data = (void *)PCIE_KIRIN_EXTERNAL_PHY
- },
+ { .compatible = "hisilicon,kirin960-pcie", .data = &kirin_960_data },
+ { .compatible = "hisilicon,kirin970-pcie", .data = &kirin_970_data },
{},
};
static int kirin_pcie_probe(struct platform_device *pdev)
{
- enum pcie_kirin_phy_type phy_type;
struct device *dev = &pdev->dev;
+ const struct kirin_pcie_data *data;
struct kirin_pcie *kirin_pcie;
struct dw_pcie *pci;
int ret;
@@ -781,13 +784,12 @@ static int kirin_pcie_probe(struct platform_device *pdev)
return -EINVAL;
}
- phy_type = (long)of_device_get_match_data(dev);
- if (!phy_type) {
+ data = of_device_get_match_data(dev);
+ if (!data) {
dev_err(dev, "OF data missing\n");
return -EINVAL;
}
-
kirin_pcie = devm_kzalloc(dev, sizeof(struct kirin_pcie), GFP_KERNEL);
if (!kirin_pcie)
return -ENOMEM;
@@ -800,7 +802,7 @@ static int kirin_pcie_probe(struct platform_device *pdev)
pci->ops = &kirin_dw_pcie_ops;
pci->pp.ops = &kirin_pcie_host_ops;
kirin_pcie->pci = pci;
- kirin_pcie->type = phy_type;
+ kirin_pcie->type = data->phy_type;
ret = kirin_pcie_get_resource(kirin_pcie, pdev);
if (ret)
diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index c19cd506ed3f..6ab90891801d 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -161,7 +161,7 @@ struct qcom_pcie_resources_2_3_3 {
/* 6 clocks typically, 7 for sm8250 */
struct qcom_pcie_resources_2_7_0 {
- struct clk_bulk_data clks[7];
+ struct clk_bulk_data clks[9];
int num_clks;
struct regulator_bulk_data supplies[2];
struct reset_control *pci_reset;
@@ -195,6 +195,10 @@ struct qcom_pcie_ops {
struct qcom_pcie_cfg {
const struct qcom_pcie_ops *ops;
unsigned int pipe_clk_need_muxing:1;
+ unsigned int has_tbu_clk:1;
+ unsigned int has_ddrss_sf_tbu_clk:1;
+ unsigned int has_aggre0_clk:1;
+ unsigned int has_aggre1_clk:1;
};
struct qcom_pcie {
@@ -204,8 +208,7 @@ struct qcom_pcie {
union qcom_pcie_resources res;
struct phy *phy;
struct gpio_desc *reset;
- const struct qcom_pcie_ops *ops;
- unsigned int pipe_clk_need_muxing:1;
+ const struct qcom_pcie_cfg *cfg;
};
#define to_qcom_pcie(x) dev_get_drvdata((x)->dev)
@@ -229,8 +232,8 @@ static int qcom_pcie_start_link(struct dw_pcie *pci)
struct qcom_pcie *pcie = to_qcom_pcie(pci);
/* Enable Link Training state machine */
- if (pcie->ops->ltssm_enable)
- pcie->ops->ltssm_enable(pcie);
+ if (pcie->cfg->ops->ltssm_enable)
+ pcie->cfg->ops->ltssm_enable(pcie);
return 0;
}
@@ -1146,6 +1149,7 @@ static int qcom_pcie_get_resources_2_7_0(struct qcom_pcie *pcie)
struct qcom_pcie_resources_2_7_0 *res = &pcie->res.v2_7_0;
struct dw_pcie *pci = pcie->pci;
struct device *dev = pci->dev;
+ unsigned int idx;
int ret;
res->pci_reset = devm_reset_control_get_exclusive(dev, "pci");
@@ -1159,24 +1163,28 @@ static int qcom_pcie_get_resources_2_7_0(struct qcom_pcie *pcie)
if (ret)
return ret;
- res->clks[0].id = "aux";
- res->clks[1].id = "cfg";
- res->clks[2].id = "bus_master";
- res->clks[3].id = "bus_slave";
- res->clks[4].id = "slave_q2a";
- res->clks[5].id = "tbu";
- if (of_device_is_compatible(dev->of_node, "qcom,pcie-sm8250")) {
- res->clks[6].id = "ddrss_sf_tbu";
- res->num_clks = 7;
- } else {
- res->num_clks = 6;
- }
+ idx = 0;
+ res->clks[idx++].id = "aux";
+ res->clks[idx++].id = "cfg";
+ res->clks[idx++].id = "bus_master";
+ res->clks[idx++].id = "bus_slave";
+ res->clks[idx++].id = "slave_q2a";
+ if (pcie->cfg->has_tbu_clk)
+ res->clks[idx++].id = "tbu";
+ if (pcie->cfg->has_ddrss_sf_tbu_clk)
+ res->clks[idx++].id = "ddrss_sf_tbu";
+ if (pcie->cfg->has_aggre0_clk)
+ res->clks[idx++].id = "aggre0";
+ if (pcie->cfg->has_aggre1_clk)
+ res->clks[idx++].id = "aggre1";
+
+ res->num_clks = idx;
ret = devm_clk_bulk_get(dev, res->num_clks, res->clks);
if (ret < 0)
return ret;
- if (pcie->pipe_clk_need_muxing) {
+ if (pcie->cfg->pipe_clk_need_muxing) {
res->pipe_clk_src = devm_clk_get(dev, "pipe_mux");
if (IS_ERR(res->pipe_clk_src))
return PTR_ERR(res->pipe_clk_src);
@@ -1209,7 +1217,7 @@ static int qcom_pcie_init_2_7_0(struct qcom_pcie *pcie)
}
/* Set TCXO as clock source for pcie_pipe_clk_src */
- if (pcie->pipe_clk_need_muxing)
+ if (pcie->cfg->pipe_clk_need_muxing)
clk_set_parent(res->pipe_clk_src, res->ref_clk_src);
ret = clk_bulk_prepare_enable(res->num_clks, res->clks);
@@ -1236,6 +1244,9 @@ static int qcom_pcie_init_2_7_0(struct qcom_pcie *pcie)
goto err_disable_clocks;
}
+ /* Wait for reset to complete, required on SM8450 */
+ usleep_range(1000, 1500);
+
/* configure PCIe to RC mode */
writel(DEVICE_TYPE_RC, pcie->parf + PCIE20_PARF_DEVICE_TYPE);
@@ -1284,7 +1295,7 @@ static int qcom_pcie_post_init_2_7_0(struct qcom_pcie *pcie)
struct qcom_pcie_resources_2_7_0 *res = &pcie->res.v2_7_0;
/* Set pipe clock as clock source for pcie_pipe_clk_src */
- if (pcie->pipe_clk_need_muxing)
+ if (pcie->cfg->pipe_clk_need_muxing)
clk_set_parent(res->pipe_clk_src, res->phy_pipe_clk);
return clk_prepare_enable(res->pipe_clk);
@@ -1384,7 +1395,7 @@ static int qcom_pcie_host_init(struct pcie_port *pp)
qcom_ep_reset_assert(pcie);
- ret = pcie->ops->init(pcie);
+ ret = pcie->cfg->ops->init(pcie);
if (ret)
return ret;
@@ -1392,16 +1403,16 @@ static int qcom_pcie_host_init(struct pcie_port *pp)
if (ret)
goto err_deinit;
- if (pcie->ops->post_init) {
- ret = pcie->ops->post_init(pcie);
+ if (pcie->cfg->ops->post_init) {
+ ret = pcie->cfg->ops->post_init(pcie);
if (ret)
goto err_disable_phy;
}
qcom_ep_reset_deassert(pcie);
- if (pcie->ops->config_sid) {
- ret = pcie->ops->config_sid(pcie);
+ if (pcie->cfg->ops->config_sid) {
+ ret = pcie->cfg->ops->config_sid(pcie);
if (ret)
goto err;
}
@@ -1410,12 +1421,12 @@ static int qcom_pcie_host_init(struct pcie_port *pp)
err:
qcom_ep_reset_assert(pcie);
- if (pcie->ops->post_deinit)
- pcie->ops->post_deinit(pcie);
+ if (pcie->cfg->ops->post_deinit)
+ pcie->cfg->ops->post_deinit(pcie);
err_disable_phy:
phy_power_off(pcie->phy);
err_deinit:
- pcie->ops->deinit(pcie);
+ pcie->cfg->ops->deinit(pcie);
return ret;
}
@@ -1509,14 +1520,33 @@ static const struct qcom_pcie_cfg ipq4019_cfg = {
static const struct qcom_pcie_cfg sdm845_cfg = {
.ops = &ops_2_7_0,
+ .has_tbu_clk = true,
};
static const struct qcom_pcie_cfg sm8250_cfg = {
.ops = &ops_1_9_0,
+ .has_tbu_clk = true,
+ .has_ddrss_sf_tbu_clk = true,
+};
+
+static const struct qcom_pcie_cfg sm8450_pcie0_cfg = {
+ .ops = &ops_1_9_0,
+ .has_ddrss_sf_tbu_clk = true,
+ .pipe_clk_need_muxing = true,
+ .has_aggre0_clk = true,
+ .has_aggre1_clk = true,
+};
+
+static const struct qcom_pcie_cfg sm8450_pcie1_cfg = {
+ .ops = &ops_1_9_0,
+ .has_ddrss_sf_tbu_clk = true,
+ .pipe_clk_need_muxing = true,
+ .has_aggre1_clk = true,
};
static const struct qcom_pcie_cfg sc7280_cfg = {
.ops = &ops_1_9_0,
+ .has_tbu_clk = true,
.pipe_clk_need_muxing = true,
};
@@ -1559,8 +1589,7 @@ static int qcom_pcie_probe(struct platform_device *pdev)
pcie->pci = pci;
- pcie->ops = pcie_cfg->ops;
- pcie->pipe_clk_need_muxing = pcie_cfg->pipe_clk_need_muxing;
+ pcie->cfg = pcie_cfg;
pcie->reset = devm_gpiod_get_optional(dev, "perst", GPIOD_OUT_HIGH);
if (IS_ERR(pcie->reset)) {
@@ -1586,7 +1615,7 @@ static int qcom_pcie_probe(struct platform_device *pdev)
goto err_pm_runtime_put;
}
- ret = pcie->ops->get_resources(pcie);
+ ret = pcie->cfg->ops->get_resources(pcie);
if (ret)
goto err_pm_runtime_put;
@@ -1628,13 +1657,15 @@ static const struct of_device_id qcom_pcie_match[] = {
{ .compatible = "qcom,pcie-sdm845", .data = &sdm845_cfg },
{ .compatible = "qcom,pcie-sm8250", .data = &sm8250_cfg },
{ .compatible = "qcom,pcie-sc8180x", .data = &sm8250_cfg },
+ { .compatible = "qcom,pcie-sm8450-pcie0", .data = &sm8450_pcie0_cfg },
+ { .compatible = "qcom,pcie-sm8450-pcie1", .data = &sm8450_pcie1_cfg },
{ .compatible = "qcom,pcie-sc7280", .data = &sc7280_cfg },
{ }
};
static void qcom_fixup_class(struct pci_dev *dev)
{
- dev->class = PCI_CLASS_BRIDGE_PCI << 8;
+ dev->class = PCI_CLASS_BRIDGE_PCI_NORMAL;
}
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, 0x0101, qcom_fixup_class);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_QCOM, 0x0104, qcom_fixup_class);
diff --git a/drivers/pci/controller/dwc/pcie-uniphier-ep.c b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
index 69810c6b0d58..4d0a587c0ba5 100644
--- a/drivers/pci/controller/dwc/pcie-uniphier-ep.c
+++ b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
@@ -10,6 +10,7 @@
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/init.h>
+#include <linux/iopoll.h>
#include <linux/of_device.h>
#include <linux/pci.h>
#include <linux/phy/phy.h>
@@ -31,6 +32,17 @@
#define PCL_RSTCTRL2 0x0024
#define PCL_RSTCTRL_PHY_RESET BIT(0)
+#define PCL_PINCTRL0 0x002c
+#define PCL_PERST_PLDN_REGEN BIT(12)
+#define PCL_PERST_NOE_REGEN BIT(11)
+#define PCL_PERST_OUT_REGEN BIT(8)
+#define PCL_PERST_PLDN_REGVAL BIT(4)
+#define PCL_PERST_NOE_REGVAL BIT(3)
+#define PCL_PERST_OUT_REGVAL BIT(0)
+
+#define PCL_PIPEMON 0x0044
+#define PCL_PCLK_ALIVE BIT(15)
+
#define PCL_MODE 0x8000
#define PCL_MODE_REGEN BIT(8)
#define PCL_MODE_REGVAL BIT(0)
@@ -51,6 +63,9 @@
#define PCL_APP_INTX 0x8074
#define PCL_APP_INTX_SYS_INT BIT(0)
+#define PCL_APP_PM0 0x8078
+#define PCL_SYS_AUX_PWR_DET BIT(8)
+
/* assertion time of INTx in usec */
#define PCL_INTX_WIDTH_USEC 30
@@ -60,7 +75,14 @@ struct uniphier_pcie_ep_priv {
struct clk *clk, *clk_gio;
struct reset_control *rst, *rst_gio;
struct phy *phy;
- const struct pci_epc_features *features;
+ const struct uniphier_pcie_ep_soc_data *data;
+};
+
+struct uniphier_pcie_ep_soc_data {
+ bool has_gio;
+ void (*init)(struct uniphier_pcie_ep_priv *priv);
+ int (*wait)(struct uniphier_pcie_ep_priv *priv);
+ const struct pci_epc_features features;
};
#define to_uniphier_pcie(x) dev_get_drvdata((x)->dev)
@@ -91,7 +113,7 @@ static void uniphier_pcie_phy_reset(struct uniphier_pcie_ep_priv *priv,
writel(val, priv->base + PCL_RSTCTRL2);
}
-static void uniphier_pcie_init_ep(struct uniphier_pcie_ep_priv *priv)
+static void uniphier_pcie_pro5_init_ep(struct uniphier_pcie_ep_priv *priv)
{
u32 val;
@@ -116,6 +138,55 @@ static void uniphier_pcie_init_ep(struct uniphier_pcie_ep_priv *priv)
msleep(100);
}
+static void uniphier_pcie_nx1_init_ep(struct uniphier_pcie_ep_priv *priv)
+{
+ u32 val;
+
+ /* set EP mode */
+ val = readl(priv->base + PCL_MODE);
+ val |= PCL_MODE_REGEN | PCL_MODE_REGVAL;
+ writel(val, priv->base + PCL_MODE);
+
+ /* use auxiliary power detection */
+ val = readl(priv->base + PCL_APP_PM0);
+ val |= PCL_SYS_AUX_PWR_DET;
+ writel(val, priv->base + PCL_APP_PM0);
+
+ /* assert PERST# */
+ val = readl(priv->base + PCL_PINCTRL0);
+ val &= ~(PCL_PERST_NOE_REGVAL | PCL_PERST_OUT_REGVAL
+ | PCL_PERST_PLDN_REGVAL);
+ val |= PCL_PERST_NOE_REGEN | PCL_PERST_OUT_REGEN
+ | PCL_PERST_PLDN_REGEN;
+ writel(val, priv->base + PCL_PINCTRL0);
+
+ uniphier_pcie_ltssm_enable(priv, false);
+
+ usleep_range(100000, 200000);
+
+ /* deassert PERST# */
+ val = readl(priv->base + PCL_PINCTRL0);
+ val |= PCL_PERST_OUT_REGVAL | PCL_PERST_OUT_REGEN;
+ writel(val, priv->base + PCL_PINCTRL0);
+}
+
+static int uniphier_pcie_nx1_wait_ep(struct uniphier_pcie_ep_priv *priv)
+{
+ u32 status;
+ int ret;
+
+ /* wait PIPE clock */
+ ret = readl_poll_timeout(priv->base + PCL_PIPEMON, status,
+ status & PCL_PCLK_ALIVE, 100000, 1000000);
+ if (ret) {
+ dev_err(priv->pci.dev,
+ "Failed to initialize controller in EP mode\n");
+ return ret;
+ }
+
+ return 0;
+}
+
static int uniphier_pcie_start_link(struct dw_pcie *pci)
{
struct uniphier_pcie_ep_priv *priv = to_uniphier_pcie(pci);
@@ -209,7 +280,7 @@ uniphier_pcie_get_features(struct dw_pcie_ep *ep)
struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
struct uniphier_pcie_ep_priv *priv = to_uniphier_pcie(pci);
- return priv->features;
+ return &priv->data->features;
}
static const struct dw_pcie_ep_ops uniphier_pcie_ep_ops = {
@@ -238,7 +309,8 @@ static int uniphier_pcie_ep_enable(struct uniphier_pcie_ep_priv *priv)
if (ret)
goto out_rst_assert;
- uniphier_pcie_init_ep(priv);
+ if (priv->data->init)
+ priv->data->init(priv);
uniphier_pcie_phy_reset(priv, true);
@@ -248,8 +320,16 @@ static int uniphier_pcie_ep_enable(struct uniphier_pcie_ep_priv *priv)
uniphier_pcie_phy_reset(priv, false);
+ if (priv->data->wait) {
+ ret = priv->data->wait(priv);
+ if (ret)
+ goto out_phy_exit;
+ }
+
return 0;
+out_phy_exit:
+ phy_exit(priv->phy);
out_rst_gio_assert:
reset_control_assert(priv->rst_gio);
out_rst_assert:
@@ -277,8 +357,8 @@ static int uniphier_pcie_ep_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
- priv->features = of_device_get_match_data(dev);
- if (WARN_ON(!priv->features))
+ priv->data = of_device_get_match_data(dev);
+ if (WARN_ON(!priv->data))
return -EINVAL;
priv->pci.dev = dev;
@@ -288,13 +368,15 @@ static int uniphier_pcie_ep_probe(struct platform_device *pdev)
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);
- priv->clk_gio = devm_clk_get(dev, "gio");
- if (IS_ERR(priv->clk_gio))
- return PTR_ERR(priv->clk_gio);
+ if (priv->data->has_gio) {
+ priv->clk_gio = devm_clk_get(dev, "gio");
+ if (IS_ERR(priv->clk_gio))
+ return PTR_ERR(priv->clk_gio);
- priv->rst_gio = devm_reset_control_get_shared(dev, "gio");
- if (IS_ERR(priv->rst_gio))
- return PTR_ERR(priv->rst_gio);
+ priv->rst_gio = devm_reset_control_get_shared(dev, "gio");
+ if (IS_ERR(priv->rst_gio))
+ return PTR_ERR(priv->rst_gio);
+ }
priv->clk = devm_clk_get(dev, "link");
if (IS_ERR(priv->clk))
@@ -321,13 +403,31 @@ static int uniphier_pcie_ep_probe(struct platform_device *pdev)
return dw_pcie_ep_init(&priv->pci.ep);
}
-static const struct pci_epc_features uniphier_pro5_data = {
- .linkup_notifier = false,
- .msi_capable = true,
- .msix_capable = false,
- .align = 1 << 16,
- .bar_fixed_64bit = BIT(BAR_0) | BIT(BAR_2) | BIT(BAR_4),
- .reserved_bar = BIT(BAR_4),
+static const struct uniphier_pcie_ep_soc_data uniphier_pro5_data = {
+ .has_gio = true,
+ .init = uniphier_pcie_pro5_init_ep,
+ .wait = NULL,
+ .features = {
+ .linkup_notifier = false,
+ .msi_capable = true,
+ .msix_capable = false,
+ .align = 1 << 16,
+ .bar_fixed_64bit = BIT(BAR_0) | BIT(BAR_2) | BIT(BAR_4),
+ .reserved_bar = BIT(BAR_4),
+ },
+};
+
+static const struct uniphier_pcie_ep_soc_data uniphier_nx1_data = {
+ .has_gio = false,
+ .init = uniphier_pcie_nx1_init_ep,
+ .wait = uniphier_pcie_nx1_wait_ep,
+ .features = {
+ .linkup_notifier = false,
+ .msi_capable = true,
+ .msix_capable = false,
+ .align = 1 << 12,
+ .bar_fixed_64bit = BIT(BAR_0) | BIT(BAR_2) | BIT(BAR_4),
+ },
};
static const struct of_device_id uniphier_pcie_ep_match[] = {
@@ -335,6 +435,10 @@ static const struct of_device_id uniphier_pcie_ep_match[] = {
.compatible = "socionext,uniphier-pro5-pcie-ep",
.data = &uniphier_pro5_data,
},
+ {
+ .compatible = "socionext,uniphier-nx1-pcie-ep",
+ .data = &uniphier_nx1_data,
+ },
{ /* sentinel */ },
};