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path: root/drivers/usb/host/xhci-tegra.c
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Diffstat (limited to 'drivers/usb/host/xhci-tegra.c')
-rw-r--r--drivers/usb/host/xhci-tegra.c126
1 files changed, 91 insertions, 35 deletions
diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index 2ff7c911fbd0..bf9065438320 100644
--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -42,19 +42,18 @@
#define XUSB_CFG_CSB_BASE_ADDR 0x800
/* FPCI mailbox registers */
-#define XUSB_CFG_ARU_MBOX_CMD 0x0e4
+/* XUSB_CFG_ARU_MBOX_CMD */
#define MBOX_DEST_FALC BIT(27)
#define MBOX_DEST_PME BIT(28)
#define MBOX_DEST_SMI BIT(29)
#define MBOX_DEST_XHCI BIT(30)
#define MBOX_INT_EN BIT(31)
-#define XUSB_CFG_ARU_MBOX_DATA_IN 0x0e8
+/* XUSB_CFG_ARU_MBOX_DATA_IN and XUSB_CFG_ARU_MBOX_DATA_OUT */
#define CMD_DATA_SHIFT 0
#define CMD_DATA_MASK 0xffffff
#define CMD_TYPE_SHIFT 24
#define CMD_TYPE_MASK 0xff
-#define XUSB_CFG_ARU_MBOX_DATA_OUT 0x0ec
-#define XUSB_CFG_ARU_MBOX_OWNER 0x0f0
+/* XUSB_CFG_ARU_MBOX_OWNER */
#define MBOX_OWNER_NONE 0
#define MBOX_OWNER_FW 1
#define MBOX_OWNER_SW 2
@@ -146,6 +145,13 @@ struct tegra_xusb_phy_type {
unsigned int num;
};
+struct tega_xusb_mbox_regs {
+ u16 cmd;
+ u16 data_in;
+ u16 data_out;
+ u16 owner;
+};
+
struct tegra_xusb_soc {
const char *firmware;
const char * const *supply_names;
@@ -160,6 +166,8 @@ struct tegra_xusb_soc {
} usb2, ulpi, hsic, usb3;
} ports;
+ struct tega_xusb_mbox_regs mbox;
+
bool scale_ss_clock;
bool has_ipfs;
};
@@ -395,15 +403,15 @@ static int tegra_xusb_mbox_send(struct tegra_xusb *tegra,
* ACK/NAK messages.
*/
if (!(msg->cmd == MBOX_CMD_ACK || msg->cmd == MBOX_CMD_NAK)) {
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER);
+ value = fpci_readl(tegra, tegra->soc->mbox.owner);
if (value != MBOX_OWNER_NONE) {
dev_err(tegra->dev, "mailbox is busy\n");
return -EBUSY;
}
- fpci_writel(tegra, MBOX_OWNER_SW, XUSB_CFG_ARU_MBOX_OWNER);
+ fpci_writel(tegra, MBOX_OWNER_SW, tegra->soc->mbox.owner);
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER);
+ value = fpci_readl(tegra, tegra->soc->mbox.owner);
if (value != MBOX_OWNER_SW) {
dev_err(tegra->dev, "failed to acquire mailbox\n");
return -EBUSY;
@@ -413,17 +421,17 @@ static int tegra_xusb_mbox_send(struct tegra_xusb *tegra,
}
value = tegra_xusb_mbox_pack(msg);
- fpci_writel(tegra, value, XUSB_CFG_ARU_MBOX_DATA_IN);
+ fpci_writel(tegra, value, tegra->soc->mbox.data_in);
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_CMD);
+ value = fpci_readl(tegra, tegra->soc->mbox.cmd);
value |= MBOX_INT_EN | MBOX_DEST_FALC;
- fpci_writel(tegra, value, XUSB_CFG_ARU_MBOX_CMD);
+ fpci_writel(tegra, value, tegra->soc->mbox.cmd);
if (wait_for_idle) {
unsigned long timeout = jiffies + msecs_to_jiffies(250);
while (time_before(jiffies, timeout)) {
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER);
+ value = fpci_readl(tegra, tegra->soc->mbox.owner);
if (value == MBOX_OWNER_NONE)
break;
@@ -431,7 +439,7 @@ static int tegra_xusb_mbox_send(struct tegra_xusb *tegra,
}
if (time_after(jiffies, timeout))
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_OWNER);
+ value = fpci_readl(tegra, tegra->soc->mbox.owner);
if (value != MBOX_OWNER_NONE)
return -ETIMEDOUT;
@@ -598,16 +606,16 @@ static irqreturn_t tegra_xusb_mbox_thread(int irq, void *data)
mutex_lock(&tegra->lock);
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_DATA_OUT);
+ value = fpci_readl(tegra, tegra->soc->mbox.data_out);
tegra_xusb_mbox_unpack(&msg, value);
- value = fpci_readl(tegra, XUSB_CFG_ARU_MBOX_CMD);
+ value = fpci_readl(tegra, tegra->soc->mbox.cmd);
value &= ~MBOX_DEST_SMI;
- fpci_writel(tegra, value, XUSB_CFG_ARU_MBOX_CMD);
+ fpci_writel(tegra, value, tegra->soc->mbox.cmd);
/* clear mailbox owner if no ACK/NAK is required */
if (!tegra_xusb_mbox_cmd_requires_ack(msg.cmd))
- fpci_writel(tegra, MBOX_OWNER_NONE, XUSB_CFG_ARU_MBOX_OWNER);
+ fpci_writel(tegra, MBOX_OWNER_NONE, tegra->soc->mbox.owner);
tegra_xusb_mbox_handle(tegra, &msg);
@@ -755,7 +763,6 @@ static int tegra_xusb_runtime_suspend(struct device *dev)
{
struct tegra_xusb *tegra = dev_get_drvdata(dev);
- tegra_xusb_phy_disable(tegra);
regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies);
tegra_xusb_clk_disable(tegra);
@@ -779,16 +786,8 @@ static int tegra_xusb_runtime_resume(struct device *dev)
goto disable_clk;
}
- err = tegra_xusb_phy_enable(tegra);
- if (err < 0) {
- dev_err(dev, "failed to enable PHYs: %d\n", err);
- goto disable_regulator;
- }
-
return 0;
-disable_regulator:
- regulator_bulk_disable(tegra->soc->num_supplies, tegra->supplies);
disable_clk:
tegra_xusb_clk_disable(tegra);
return err;
@@ -970,7 +969,7 @@ static int tegra_xusb_powerdomain_init(struct device *dev,
static int tegra_xusb_probe(struct platform_device *pdev)
{
struct tegra_xusb_mbox_msg msg;
- struct resource *res, *regs;
+ struct resource *regs;
struct tegra_xusb *tegra;
struct xhci_hcd *xhci;
unsigned int i, j, k;
@@ -992,14 +991,12 @@ static int tegra_xusb_probe(struct platform_device *pdev)
if (IS_ERR(tegra->regs))
return PTR_ERR(tegra->regs);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- tegra->fpci_base = devm_ioremap_resource(&pdev->dev, res);
+ tegra->fpci_base = devm_platform_ioremap_resource(pdev, 1);
if (IS_ERR(tegra->fpci_base))
return PTR_ERR(tegra->fpci_base);
if (tegra->soc->has_ipfs) {
- res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
- tegra->ipfs_base = devm_ioremap_resource(&pdev->dev, res);
+ tegra->ipfs_base = devm_platform_ioremap_resource(pdev, 2);
if (IS_ERR(tegra->ipfs_base))
return PTR_ERR(tegra->ipfs_base);
}
@@ -1128,8 +1125,9 @@ static int tegra_xusb_probe(struct platform_device *pdev)
goto put_powerdomains;
}
- for (i = 0; i < tegra->soc->num_supplies; i++)
- tegra->supplies[i].supply = tegra->soc->supply_names[i];
+ regulator_bulk_set_supply_names(tegra->supplies,
+ tegra->soc->supply_names,
+ tegra->soc->num_supplies);
err = devm_regulator_bulk_get(&pdev->dev, tegra->soc->num_supplies,
tegra->supplies);
@@ -1181,6 +1179,12 @@ static int tegra_xusb_probe(struct platform_device *pdev)
*/
platform_set_drvdata(pdev, tegra);
+ err = tegra_xusb_phy_enable(tegra);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to enable PHYs: %d\n", err);
+ goto put_hcd;
+ }
+
pm_runtime_enable(&pdev->dev);
if (pm_runtime_enabled(&pdev->dev))
err = pm_runtime_get_sync(&pdev->dev);
@@ -1189,7 +1193,7 @@ static int tegra_xusb_probe(struct platform_device *pdev)
if (err < 0) {
dev_err(&pdev->dev, "failed to enable device: %d\n", err);
- goto disable_rpm;
+ goto disable_phy;
}
tegra_xusb_config(tegra, regs);
@@ -1275,9 +1279,11 @@ remove_usb2:
put_rpm:
if (!pm_runtime_status_suspended(&pdev->dev))
tegra_xusb_runtime_suspend(&pdev->dev);
-disable_rpm:
- pm_runtime_disable(&pdev->dev);
+put_hcd:
usb_put_hcd(tegra->hcd);
+disable_phy:
+ tegra_xusb_phy_disable(tegra);
+ pm_runtime_disable(&pdev->dev);
put_powerdomains:
if (!of_property_read_bool(pdev->dev.of_node, "power-domains")) {
tegra_powergate_power_off(TEGRA_POWERGATE_XUSBC);
@@ -1314,6 +1320,8 @@ static int tegra_xusb_remove(struct platform_device *pdev)
tegra_xusb_powerdomain_remove(&pdev->dev, tegra);
}
+ tegra_xusb_phy_disable(tegra);
+
tegra_xusb_padctl_put(tegra->padctl);
return 0;
@@ -1375,6 +1383,12 @@ static const struct tegra_xusb_soc tegra124_soc = {
},
.scale_ss_clock = true,
.has_ipfs = true,
+ .mbox = {
+ .cmd = 0xe4,
+ .data_in = 0xe8,
+ .data_out = 0xec,
+ .owner = 0xf0,
+ },
};
MODULE_FIRMWARE("nvidia/tegra124/xusb.bin");
@@ -1407,6 +1421,12 @@ static const struct tegra_xusb_soc tegra210_soc = {
},
.scale_ss_clock = false,
.has_ipfs = true,
+ .mbox = {
+ .cmd = 0xe4,
+ .data_in = 0xe8,
+ .data_out = 0xec,
+ .owner = 0xf0,
+ },
};
MODULE_FIRMWARE("nvidia/tegra210/xusb.bin");
@@ -1432,12 +1452,48 @@ static const struct tegra_xusb_soc tegra186_soc = {
},
.scale_ss_clock = false,
.has_ipfs = false,
+ .mbox = {
+ .cmd = 0xe4,
+ .data_in = 0xe8,
+ .data_out = 0xec,
+ .owner = 0xf0,
+ },
+};
+
+static const char * const tegra194_supply_names[] = {
+};
+
+static const struct tegra_xusb_phy_type tegra194_phy_types[] = {
+ { .name = "usb3", .num = 4, },
+ { .name = "usb2", .num = 4, },
+};
+
+static const struct tegra_xusb_soc tegra194_soc = {
+ .firmware = "nvidia/tegra194/xusb.bin",
+ .supply_names = tegra194_supply_names,
+ .num_supplies = ARRAY_SIZE(tegra194_supply_names),
+ .phy_types = tegra194_phy_types,
+ .num_types = ARRAY_SIZE(tegra194_phy_types),
+ .ports = {
+ .usb3 = { .offset = 0, .count = 4, },
+ .usb2 = { .offset = 4, .count = 4, },
+ },
+ .scale_ss_clock = false,
+ .has_ipfs = false,
+ .mbox = {
+ .cmd = 0x68,
+ .data_in = 0x6c,
+ .data_out = 0x70,
+ .owner = 0x74,
+ },
};
+MODULE_FIRMWARE("nvidia/tegra194/xusb.bin");
static const struct of_device_id tegra_xusb_of_match[] = {
{ .compatible = "nvidia,tegra124-xusb", .data = &tegra124_soc },
{ .compatible = "nvidia,tegra210-xusb", .data = &tegra210_soc },
{ .compatible = "nvidia,tegra186-xusb", .data = &tegra186_soc },
+ { .compatible = "nvidia,tegra194-xusb", .data = &tegra194_soc },
{ },
};
MODULE_DEVICE_TABLE(of, tegra_xusb_of_match);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.