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-rw-r--r--drivers/usb/dwc3/Kconfig14
-rw-r--r--drivers/usb/dwc3/Makefile1
-rw-r--r--drivers/usb/dwc3/dwc3-am62.c125
-rw-r--r--drivers/usb/dwc3/dwc3-meson-g12a.c2
-rw-r--r--drivers/usb/dwc3/dwc3-meson-gxl.c18
-rw-r--r--drivers/usb/dwc3/ep0.c46
-rw-r--r--drivers/usb/dwc3/gadget.c4
-rw-r--r--drivers/usb/host/usb-uclass.c2
8 files changed, 177 insertions, 35 deletions
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index c0c8c16fd9c..0100723a68b 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -37,6 +37,20 @@ config SPL_USB_DWC3_GENERIC
Select this for Xilinx ZynqMP and similar Platforms.
This wrapper supports Host and Peripheral operation modes.
+config SPL_USB_DWC3_AM62
+ bool "TI AM62 USB wrapper"
+ depends on SPL_DM_USB && SPL_USB_DWC3_GENERIC && SPL_SYSCON
+ help
+ Select this for TI AM62 Platforms.
+ This wrapper supports Host and Peripheral operation modes.
+
+config USB_DWC3_AM62
+ bool "TI AM62 USB wrapper"
+ depends on DM_USB && USB_DWC3_GENERIC && SYSCON
+ help
+ Select this for TI AM62 Platforms.
+ This wrapper supports Host and Peripheral operation modes.
+
config USB_DWC3_MESON_G12A
bool "Amlogic Meson G12A USB wrapper"
depends on DM_USB && USB_DWC3 && ARCH_MESON
diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
index 97b4f7191ca..a46b6824ab7 100644
--- a/drivers/usb/dwc3/Makefile
+++ b/drivers/usb/dwc3/Makefile
@@ -6,6 +6,7 @@ dwc3-y := core.o
obj-$(CONFIG_USB_DWC3_GADGET) += gadget.o ep0.o
+obj-$(CONFIG_$(SPL_)USB_DWC3_AM62) += dwc3-am62.o
obj-$(CONFIG_USB_DWC3_OMAP) += dwc3-omap.o
obj-$(CONFIG_USB_DWC3_MESON_G12A) += dwc3-meson-g12a.o
obj-$(CONFIG_USB_DWC3_MESON_GXL) += dwc3-meson-gxl.o
diff --git a/drivers/usb/dwc3/dwc3-am62.c b/drivers/usb/dwc3/dwc3-am62.c
new file mode 100644
index 00000000000..99519602eb2
--- /dev/null
+++ b/drivers/usb/dwc3/dwc3-am62.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * TI AM62 specific glue layer for DWC3
+ */
+
+#include <dm.h>
+#include <dm/device_compat.h>
+#include <regmap.h>
+#include <syscon.h>
+#include <asm/io.h>
+
+#include "dwc3-generic.h"
+
+#define USBSS_MODE_CONTROL 0x1c
+#define USBSS_PHY_CONFIG 0x8
+#define USBSS_PHY_VBUS_SEL_MASK GENMASK(2, 1)
+#define USBSS_PHY_VBUS_SEL_SHIFT 1
+#define USBSS_MODE_VALID BIT(0)
+#define PHY_PLL_REFCLK_MASK GENMASK(3, 0)
+static const int dwc3_ti_am62_rate_table[] = { /* in KHZ */
+ 9600,
+ 10000,
+ 12000,
+ 19200,
+ 20000,
+ 24000,
+ 25000,
+ 26000,
+ 38400,
+ 40000,
+ 58000,
+ 50000,
+ 52000,
+};
+
+static void dwc3_ti_am62_glue_configure(struct udevice *dev, int index,
+ enum usb_dr_mode mode)
+{
+ struct clk usb2_refclk;
+ int rate_code, i, ret;
+ unsigned long rate;
+ u32 reg;
+ void *usbss;
+ bool vbus_divider;
+ struct regmap *syscon;
+ struct ofnode_phandle_args args;
+
+ usbss = dev_remap_addr_index(dev, 0);
+ if (IS_ERR(usbss)) {
+ dev_err(dev, "can't map IOMEM resource\n");
+ return;
+ }
+
+ ret = clk_get_by_name(dev, "ref", &usb2_refclk);
+ if (ret) {
+ dev_err(dev, "can't get usb2_refclk\n");
+ return;
+ }
+
+ /* Calculate the rate code */
+ rate = clk_get_rate(&usb2_refclk);
+ rate /= 1000; /* To KHz */
+ for (i = 0; i < ARRAY_SIZE(dwc3_ti_am62_rate_table); i++) {
+ if (dwc3_ti_am62_rate_table[i] == rate)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(dwc3_ti_am62_rate_table)) {
+ dev_err(dev, "unsupported usb2_refclk rate: %lu KHz\n", rate);
+ return;
+ }
+
+ rate_code = i;
+
+ /* Read the syscon property */
+ syscon = syscon_regmap_lookup_by_phandle(dev, "ti,syscon-phy-pll-refclk");
+ if (IS_ERR(syscon)) {
+ dev_err(dev, "unable to get ti,syscon-phy-pll-refclk regmap\n");
+ return;
+ }
+
+ ret = ofnode_parse_phandle_with_args(dev_ofnode(dev), "ti,syscon-phy-pll-refclk", NULL, 1,
+ 0, &args);
+ if (ret)
+ return;
+
+ /* Program PHY PLL refclk by reading syscon property */
+ ret = regmap_update_bits(syscon, args.args[0], PHY_PLL_REFCLK_MASK, rate_code);
+ if (ret) {
+ dev_err(dev, "failed to set phy pll reference clock rate\n");
+ return;
+ }
+
+ /* VBUS divider select */
+ reg = readl(usbss + USBSS_PHY_CONFIG);
+ vbus_divider = dev_read_bool(dev, "ti,vbus-divider");
+ if (vbus_divider)
+ reg |= 1 << USBSS_PHY_VBUS_SEL_SHIFT;
+
+ writel(reg, usbss + USBSS_PHY_CONFIG);
+
+ /* Set mode valid */
+ reg = readl(usbss + USBSS_MODE_CONTROL);
+ reg |= USBSS_MODE_VALID;
+ writel(reg, usbss + USBSS_MODE_CONTROL);
+}
+
+struct dwc3_glue_ops ti_am62_ops = {
+ .glue_configure = dwc3_ti_am62_glue_configure,
+};
+
+static const struct udevice_id dwc3_am62_match[] = {
+ { .compatible = "ti,am62-usb", .data = (ulong)&ti_am62_ops },
+ { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(dwc3_am62_wrapper) = {
+ .name = "dwc3-am62",
+ .id = UCLASS_SIMPLE_BUS,
+ .of_match = dwc3_am62_match,
+ .bind = dwc3_glue_bind,
+ .probe = dwc3_glue_probe,
+ .remove = dwc3_glue_remove,
+ .plat_auto = sizeof(struct dwc3_glue_data),
+};
diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c
index 21e4f637bb1..41d15996e5b 100644
--- a/drivers/usb/dwc3/dwc3-meson-g12a.c
+++ b/drivers/usb/dwc3/dwc3-meson-g12a.c
@@ -270,7 +270,7 @@ static int dwc3_meson_g12a_usb_init(struct dwc3_meson_g12a *priv)
return 0;
}
-int dwc3_meson_g12a_force_mode(struct udevice *dev, enum usb_dr_mode mode)
+static int dwc3_meson_g12a_force_mode(struct udevice *dev, enum usb_dr_mode mode)
{
struct dwc3_meson_g12a *priv = dev_get_plat(dev);
diff --git a/drivers/usb/dwc3/dwc3-meson-gxl.c b/drivers/usb/dwc3/dwc3-meson-gxl.c
index 3e693c5ff31..5fb9b477ada 100644
--- a/drivers/usb/dwc3/dwc3-meson-gxl.c
+++ b/drivers/usb/dwc3/dwc3-meson-gxl.c
@@ -26,7 +26,6 @@
#include <linux/bitfield.h>
#include <linux/bitops.h>
#include <linux/compat.h>
-#include <asm/arch/usb-gx.h>
/* USB Glue Control Registers */
@@ -158,9 +157,9 @@ static int dwc3_meson_gxl_usb2_init(struct dwc3_meson_gxl *priv)
if (!priv->phys[i].dev)
continue;
- phy_meson_gxl_usb2_set_mode(&priv->phys[i],
- (i == USB2_OTG_PHY) ? USB_DR_MODE_PERIPHERAL
- : USB_DR_MODE_HOST);
+ generic_phy_set_mode(&priv->phys[i],
+ (i == USB2_OTG_PHY) ? PHY_MODE_USB_DEVICE
+ : PHY_MODE_USB_HOST, 0);
}
return 0;
@@ -193,7 +192,7 @@ static int dwc3_meson_gxl_usb_init(struct dwc3_meson_gxl *priv)
return 0;
}
-int dwc3_meson_gxl_force_mode(struct udevice *dev, enum usb_dr_mode mode)
+static int dwc3_meson_gxl_force_mode(struct udevice *dev, enum usb_dr_mode mode)
{
struct dwc3_meson_gxl *priv = dev_get_plat(dev);
@@ -224,7 +223,9 @@ int dwc3_meson_gxl_force_mode(struct udevice *dev, enum usb_dr_mode mode)
#endif
priv->otg_phy_mode = mode;
- phy_meson_gxl_usb2_set_mode(&priv->phys[USB2_OTG_PHY], mode);
+ generic_phy_set_mode(&priv->phys[USB2_OTG_PHY],
+ mode == USB_DR_MODE_PERIPHERAL ? PHY_MODE_USB_DEVICE
+ : PHY_MODE_USB_HOST, 0);
dwc3_meson_gxl_usb2_set_mode(priv, mode);
@@ -361,8 +362,9 @@ static int dwc3_meson_gxl_probe(struct udevice *dev)
}
if (priv->phys[USB2_OTG_PHY].dev)
- phy_meson_gxl_usb2_set_mode(&priv->phys[USB2_OTG_PHY],
- priv->otg_phy_mode);
+ generic_phy_set_mode(&priv->phys[USB2_OTG_PHY],
+ priv->otg_phy_mode == USB_DR_MODE_PERIPHERAL ? PHY_MODE_USB_DEVICE
+ : PHY_MODE_USB_HOST, 0);
dwc3_meson_gxl_usb2_set_mode(priv, priv->otg_phy_mode);
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 117d38a0340..24f516a131b 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -60,7 +60,7 @@ static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
dep = dwc->eps[epnum];
if (dep->flags & DWC3_EP_BUSY) {
- dev_vdbg(dwc->dev, "%s still busy", dep->name);
+ dev_vdbg(dwc->dev, "%s still busy\n", dep->name);
return 0;
}
@@ -237,9 +237,9 @@ int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
goto out;
}
- dev_vdbg(dwc->dev, "queueing request %p to %s length %d state '%s'",
- request, dep->name, request->length,
- dwc3_ep0_state_string(dwc->ep0state));
+ dev_vdbg(dwc->dev, "queueing request %p to %s length %d state '%s\n'",
+ request, dep->name, request->length,
+ dwc3_ep0_state_string(dwc->ep0state));
ret = __dwc3_gadget_ep0_queue(dep, req);
@@ -696,35 +696,35 @@ static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
switch (ctrl->bRequest) {
case USB_REQ_GET_STATUS:
- dev_vdbg(dwc->dev, "USB_REQ_GET_STATUS");
+ dev_vdbg(dwc->dev, "USB_REQ_GET_STATUS\n");
ret = dwc3_ep0_handle_status(dwc, ctrl);
break;
case USB_REQ_CLEAR_FEATURE:
- dev_vdbg(dwc->dev, "USB_REQ_CLEAR_FEATURE");
+ dev_vdbg(dwc->dev, "USB_REQ_CLEAR_FEATURE\n");
ret = dwc3_ep0_handle_feature(dwc, ctrl, 0);
break;
case USB_REQ_SET_FEATURE:
- dev_vdbg(dwc->dev, "USB_REQ_SET_FEATURE");
+ dev_vdbg(dwc->dev, "USB_REQ_SET_FEATURE\n");
ret = dwc3_ep0_handle_feature(dwc, ctrl, 1);
break;
case USB_REQ_SET_ADDRESS:
- dev_vdbg(dwc->dev, "USB_REQ_SET_ADDRESS");
+ dev_vdbg(dwc->dev, "USB_REQ_SET_ADDRESS\n");
ret = dwc3_ep0_set_address(dwc, ctrl);
break;
case USB_REQ_SET_CONFIGURATION:
- dev_vdbg(dwc->dev, "USB_REQ_SET_CONFIGURATION");
+ dev_vdbg(dwc->dev, "USB_REQ_SET_CONFIGURATION\n");
ret = dwc3_ep0_set_config(dwc, ctrl);
break;
case USB_REQ_SET_SEL:
- dev_vdbg(dwc->dev, "USB_REQ_SET_SEL");
+ dev_vdbg(dwc->dev, "USB_REQ_SET_SEL\n");
ret = dwc3_ep0_set_sel(dwc, ctrl);
break;
case USB_REQ_SET_ISOCH_DELAY:
- dev_vdbg(dwc->dev, "USB_REQ_SET_ISOCH_DELAY");
+ dev_vdbg(dwc->dev, "USB_REQ_SET_ISOCH_DELAY\n");
ret = dwc3_ep0_set_isoch_delay(dwc, ctrl);
break;
default:
- dev_vdbg(dwc->dev, "Forwarding to gadget driver");
+ dev_vdbg(dwc->dev, "Forwarding to gadget driver\n");
ret = dwc3_ep0_delegate_req(dwc, ctrl);
break;
}
@@ -910,17 +910,17 @@ static void dwc3_ep0_xfer_complete(struct dwc3 *dwc,
switch (dwc->ep0state) {
case EP0_SETUP_PHASE:
- dev_vdbg(dwc->dev, "Setup Phase");
+ dev_vdbg(dwc->dev, "Setup Phase\n");
dwc3_ep0_inspect_setup(dwc, event);
break;
case EP0_DATA_PHASE:
- dev_vdbg(dwc->dev, "Data Phase");
+ dev_vdbg(dwc->dev, "Data Phase\n");
dwc3_ep0_complete_data(dwc, event);
break;
case EP0_STATUS_PHASE:
- dev_vdbg(dwc->dev, "Status Phase");
+ dev_vdbg(dwc->dev, "Status Phase\n");
dwc3_ep0_complete_status(dwc, event);
break;
default:
@@ -1046,7 +1046,7 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
switch (event->status) {
case DEPEVT_STATUS_CONTROL_DATA:
- dev_vdbg(dwc->dev, "Control Data");
+ dev_vdbg(dwc->dev, "Control Data\n");
/*
* We already have a DATA transfer in the controller's cache,
@@ -1060,7 +1060,7 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
if (dwc->ep0_expect_in != event->endpoint_number) {
struct dwc3_ep *dep = dwc->eps[dwc->ep0_expect_in];
- dev_vdbg(dwc->dev, "Wrong direction for Data phase");
+ dev_vdbg(dwc->dev, "Wrong direction for Data phase\n");
dwc3_ep0_end_control_data(dwc, dep);
dwc3_ep0_stall_and_restart(dwc);
return;
@@ -1072,13 +1072,13 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
if (dwc->ep0_next_event != DWC3_EP0_NRDY_STATUS)
return;
- dev_vdbg(dwc->dev, "Control Status");
+ dev_vdbg(dwc->dev, "Control Status\n");
dwc->ep0state = EP0_STATUS_PHASE;
if (dwc->delayed_status) {
WARN_ON_ONCE(event->endpoint_number != 1);
- dev_vdbg(dwc->dev, "Delayed Status");
+ dev_vdbg(dwc->dev, "Delayed Status\n");
return;
}
@@ -1091,10 +1091,10 @@ void dwc3_ep0_interrupt(struct dwc3 *dwc,
{
u8 epnum = event->endpoint_number;
- dev_dbg(dwc->dev, "%s while ep%d%s in state '%s'",
- dwc3_ep_event_string(event->endpoint_event),
- epnum >> 1, (epnum & 1) ? "in" : "out",
- dwc3_ep0_state_string(dwc->ep0state));
+ dev_dbg(dwc->dev, "%s while ep%d%s in state '%s'\n",
+ dwc3_ep_event_string(event->endpoint_event),
+ epnum >> 1, (epnum & 1) ? "in" : "out",
+ dwc3_ep0_state_string(dwc->ep0state));
switch (event->endpoint_event) {
case DWC3_DEPEVT_XFERCOMPLETE:
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index fab32575647..92c7c6d08b7 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -248,7 +248,7 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
list_del(&req->list);
req->trb = NULL;
- if (req->request.length)
+ if (req->request.dma && req->request.length)
dwc3_flush_cache((uintptr_t)req->request.dma, req->request.length);
if (req->request.status == -EINPROGRESS)
@@ -256,7 +256,7 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
if (dwc->ep0_bounced && dep->number == 0)
dwc->ep0_bounced = false;
- else
+ else if (req->request.dma)
usb_gadget_unmap_request(&dwc->gadget, &req->request,
req->direction);
diff --git a/drivers/usb/host/usb-uclass.c b/drivers/usb/host/usb-uclass.c
index cd3a07e4c37..bfec303e7af 100644
--- a/drivers/usb/host/usb-uclass.c
+++ b/drivers/usb/host/usb-uclass.c
@@ -387,7 +387,7 @@ int usb_init(void)
/* if we were not able to find at least one working bus, bail out */
if (controllers_initialized == 0)
- printf("No working controllers found\n");
+ printf("No USB controllers found\n");
return usb_started ? 0 : -ENOENT;
}
generated by cgit v1.2.3 (git 2.0.4) at 2025-08-04 00:04:04 +0000