diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc3/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/usb/dwc3/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-generic-sti.c | 134 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-generic.c | 20 | ||||
| -rw-r--r-- | drivers/usb/gadget/f_mass_storage.c | 1 | ||||
| -rw-r--r-- | drivers/usb/gadget/g_dnl.c | 3 | ||||
| -rw-r--r-- | drivers/usb/host/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/usb/host/Makefile | 1 | ||||
| -rw-r--r-- | drivers/usb/host/dwc3-sti-glue.c | 253 |
9 files changed, 150 insertions, 280 deletions
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 0100723a68b..682a6910655 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -87,6 +87,14 @@ config USB_DWC3_LAYERSCAPE Host and Peripheral operation modes are supported. OTG is not supported. +config USB_DWC3_STI + bool "STi USB wrapper" + depends on DM_USB && USB_DWC3_GENERIC && SYSCON + help + Enables support for the on-chip xHCI controller on STMicroelectronics + STiH407 family SoCs. This is a driver for the dwc3 to provide the + glue logic to configure the controller. + menu "PHY Subsystem" config USB_DWC3_PHY_OMAP diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile index a085c9d4628..985206eafe4 100644 --- a/drivers/usb/dwc3/Makefile +++ b/drivers/usb/dwc3/Makefile @@ -15,3 +15,4 @@ obj-$(CONFIG_USB_DWC3_UNIPHIER) += dwc3-uniphier.o obj-$(CONFIG_USB_DWC3_LAYERSCAPE) += dwc3-layerscape.o obj-$(CONFIG_USB_DWC3_PHY_OMAP) += ti_usb_phy.o obj-$(CONFIG_USB_DWC3_PHY_SAMSUNG) += samsung_usb_phy.o +obj-$(CONFIG_USB_DWC3_STI) += dwc3-generic-sti.o diff --git a/drivers/usb/dwc3/dwc3-generic-sti.c b/drivers/usb/dwc3/dwc3-generic-sti.c new file mode 100644 index 00000000000..b34f5ceceac --- /dev/null +++ b/drivers/usb/dwc3/dwc3-generic-sti.c @@ -0,0 +1,134 @@ +// SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause +/* + * STi specific glue layer for DWC3 + * + * Copyright (C) 2025, STMicroelectronics - All Rights Reserved + */ + +#define LOG_CATEGORY UCLASS_NOP + +#include <reset.h> +#include <regmap.h> +#include <syscon.h> +#include <asm/io.h> +#include <dm/device.h> +#include <dm/device_compat.h> +#include <dm/read.h> +#include <linux/usb/otg.h> +#include "dwc3-generic.h" + +/* glue registers */ +#define CLKRST_CTRL 0x00 +#define AUX_CLK_EN BIT(0) +#define SW_PIPEW_RESET_N BIT(4) +#define EXT_CFG_RESET_N BIT(8) + +#define XHCI_REVISION BIT(12) + +#define USB2_VBUS_MNGMNT_SEL1 0x2C +#define USB2_VBUS_UTMIOTG 0x1 + +#define SEL_OVERRIDE_VBUSVALID(n) ((n) << 0) +#define SEL_OVERRIDE_POWERPRESENT(n) ((n) << 4) +#define SEL_OVERRIDE_BVALID(n) ((n) << 8) + +/* Static DRD configuration */ +#define USB3_CONTROL_MASK 0xf77 + +#define USB3_DEVICE_NOT_HOST BIT(0) +#define USB3_FORCE_VBUSVALID BIT(1) +#define USB3_DELAY_VBUSVALID BIT(2) +#define USB3_SEL_FORCE_OPMODE BIT(4) +#define USB3_FORCE_OPMODE(n) ((n) << 5) +#define USB3_SEL_FORCE_DPPULLDOWN2 BIT(8) +#define USB3_FORCE_DPPULLDOWN2 BIT(9) +#define USB3_SEL_FORCE_DMPULLDOWN2 BIT(10) +#define USB3_FORCE_DMPULLDOWN2 BIT(11) + +static void dwc3_stih407_glue_configure(struct udevice *dev, int index, + enum usb_dr_mode mode) +{ + struct dwc3_glue_data *glue = dev_get_plat(dev); + struct regmap *regmap; + ulong syscfg_base; + ulong syscfg_offset; + ulong glue_base; + int ret; + + /* deassert both powerdown and softreset */ + ret = reset_deassert_bulk(&glue->resets); + if (ret) { + dev_err(dev, "reset_deassert_bulk error: %d\n", ret); + return; + } + + regmap = syscon_regmap_lookup_by_phandle(dev, "st,syscfg"); + if (IS_ERR(regmap)) { + dev_err(dev, "unable to get st,syscfg, dev %s\n", dev->name); + return; + } + + syscfg_base = regmap->ranges[0].start; + glue_base = dev_read_addr_index(dev, 0); + syscfg_offset = dev_read_addr_index(dev, 1); + + clrbits_le32(syscfg_base + syscfg_offset, USB3_CONTROL_MASK); + + /* glue drd init */ + switch (mode) { + case USB_DR_MODE_PERIPHERAL: + clrbits_le32(syscfg_base + syscfg_offset, + USB3_DELAY_VBUSVALID | USB3_SEL_FORCE_OPMODE | + USB3_FORCE_OPMODE(0x3) | USB3_SEL_FORCE_DPPULLDOWN2 | + USB3_FORCE_DPPULLDOWN2 | USB3_SEL_FORCE_DMPULLDOWN2 | + USB3_FORCE_DMPULLDOWN2); + + setbits_le32(syscfg_base + syscfg_offset, + USB3_DEVICE_NOT_HOST | USB3_FORCE_VBUSVALID); + break; + + case USB_DR_MODE_HOST: + clrbits_le32(syscfg_base + syscfg_offset, + USB3_DEVICE_NOT_HOST | USB3_FORCE_VBUSVALID | + USB3_SEL_FORCE_OPMODE | USB3_FORCE_OPMODE(0x3) | + USB3_SEL_FORCE_DPPULLDOWN2 | USB3_FORCE_DPPULLDOWN2 | + USB3_SEL_FORCE_DMPULLDOWN2 | USB3_FORCE_DMPULLDOWN2); + + setbits_le32(syscfg_base + syscfg_offset, USB3_DELAY_VBUSVALID); + break; + + default: + dev_err(dev, "Unsupported mode of operation %d\n", mode); + return; + } + + /* glue init */ + setbits_le32(glue_base + CLKRST_CTRL, AUX_CLK_EN | EXT_CFG_RESET_N | XHCI_REVISION); + clrbits_le32(glue_base + CLKRST_CTRL, SW_PIPEW_RESET_N); + + /* configure mux for vbus, powerpresent and bvalid signals */ + setbits_le32(glue_base + USB2_VBUS_MNGMNT_SEL1, + SEL_OVERRIDE_VBUSVALID(USB2_VBUS_UTMIOTG) | + SEL_OVERRIDE_POWERPRESENT(USB2_VBUS_UTMIOTG) | + SEL_OVERRIDE_BVALID(USB2_VBUS_UTMIOTG)); + setbits_le32(glue_base + CLKRST_CTRL, SW_PIPEW_RESET_N); +}; + +struct dwc3_glue_ops stih407_ops = { + .glue_configure = dwc3_stih407_glue_configure, +}; + +static const struct udevice_id dwc3_sti_match[] = { + { .compatible = "st,stih407-dwc3", .data = (ulong)&stih407_ops}, + { /* sentinel */ } +}; + +U_BOOT_DRIVER(dwc3_sti_wrapper) = { + .name = "dwc3-sti", + .id = UCLASS_NOP, + .of_match = dwc3_sti_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-generic.c b/drivers/usb/dwc3/dwc3-generic.c index 55e62b35c61..21452ad1569 100644 --- a/drivers/usb/dwc3/dwc3-generic.c +++ b/drivers/usb/dwc3/dwc3-generic.c @@ -7,29 +7,17 @@ * Based on dwc3-omap.c. */ -#include <cpu_func.h> -#include <log.h> #include <dm.h> -#include <dm/device-internal.h> +#include <reset.h> +#include <asm/gpio.h> #include <dm/lists.h> -#include <dwc3-uboot.h> -#include <generic-phy.h> -#include <linux/bitops.h> #include <linux/delay.h> -#include <linux/printk.h> -#include <linux/usb/ch9.h> #include <linux/usb/gadget.h> -#include <malloc.h> #include <power/regulator.h> -#include <usb.h> -#include "core.h" -#include "gadget.h" -#include <reset.h> -#include <clk.h> #include <usb/xhci.h> -#include <asm/gpio.h> - +#include "core.h" #include "dwc3-generic.h" +#include "gadget.h" struct dwc3_generic_plat { fdt_addr_t base; diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index ffe1ae6eb73..d3fc4acb401 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -682,6 +682,7 @@ static int sleep_thread(struct fsg_common *common) k = 0; } + schedule(); dm_usb_gadget_handle_interrupts(udcdev); } common->thread_wakeup_needed = 0; diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c index 631969b3405..f2540eb6ded 100644 --- a/drivers/usb/gadget/g_dnl.c +++ b/drivers/usb/gadget/g_dnl.c @@ -207,7 +207,8 @@ void g_dnl_clear_detach(void) static int on_serialno(const char *name, const char *value, enum env_op op, int flags) { - g_dnl_set_serialnumber((char *)value); + if (value) + g_dnl_set_serialnumber((char *)value); return 0; } U_BOOT_ENV_CALLBACK(serialno, on_serialno); diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index a656265890e..3dc79770eeb 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -110,15 +110,6 @@ config USB_XHCI_RCAR Choose this option to add support for USB 3.0 driver on Renesas R-Car Gen3 SoCs. -config USB_XHCI_STI - bool "Support for STMicroelectronics STiH407 family on-chip xHCI USB controller" - depends on ARCH_STI - default y - help - Enables support for the on-chip xHCI controller on STMicroelectronics - STiH407 family SoCs. This is a driver for the dwc3 to provide the glue logic - to configure the controller. - config USB_XHCI_DRA7XX_INDEX int "DRA7XX xHCI USB index" range 0 1 diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 301bb9fdee1..902d68d0378 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -54,7 +54,6 @@ obj-$(CONFIG_USB_XHCI_GENERIC) += xhci-generic.o obj-$(CONFIG_USB_XHCI_OMAP) += xhci-omap.o obj-$(CONFIG_USB_XHCI_PCI) += xhci-pci.o obj-$(CONFIG_USB_XHCI_RCAR) += xhci-rcar.o -obj-$(CONFIG_USB_XHCI_STI) += dwc3-sti-glue.o obj-$(CONFIG_USB_XHCI_OCTEON) += dwc3-octeon-glue.o # designware diff --git a/drivers/usb/host/dwc3-sti-glue.c b/drivers/usb/host/dwc3-sti-glue.c deleted file mode 100644 index 3e6834e38e3..00000000000 --- a/drivers/usb/host/dwc3-sti-glue.c +++ /dev/null @@ -1,253 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * STiH407 family DWC3 specific Glue layer - * - * Copyright (C) 2017, STMicroelectronics - All Rights Reserved - * Author(s): Patrice Chotard, <patrice.chotard@foss.st.com> for STMicroelectronics. - */ - -#include <log.h> -#include <asm/global_data.h> -#include <asm/io.h> -#include <dm.h> -#include <errno.h> -#include <dm/lists.h> -#include <regmap.h> -#include <reset-uclass.h> -#include <syscon.h> -#include <usb.h> -#include <linux/printk.h> - -#include <linux/usb/dwc3.h> -#include <linux/usb/otg.h> -#include <dwc3-sti-glue.h> - -DECLARE_GLOBAL_DATA_PTR; - -/* - * struct sti_dwc3_glue_plat - dwc3 STi glue driver private structure - * @syscfg_base: addr for the glue syscfg - * @glue_base: addr for the glue registers - * @syscfg_offset: usb syscfg control offset - * @powerdown_ctl: rest controller for powerdown signal - * @softreset_ctl: reset controller for softreset signal - * @mode: drd static host/device config - */ -struct sti_dwc3_glue_plat { - phys_addr_t syscfg_base; - phys_addr_t glue_base; - phys_addr_t syscfg_offset; - struct reset_ctl powerdown_ctl; - struct reset_ctl softreset_ctl; - enum usb_dr_mode mode; -}; - -static int sti_dwc3_glue_drd_init(struct sti_dwc3_glue_plat *plat) -{ - unsigned long val; - - val = readl(plat->syscfg_base + plat->syscfg_offset); - - val &= USB3_CONTROL_MASK; - - switch (plat->mode) { - case USB_DR_MODE_PERIPHERAL: - val &= ~(USB3_DELAY_VBUSVALID - | USB3_SEL_FORCE_OPMODE | USB3_FORCE_OPMODE(0x3) - | USB3_SEL_FORCE_DPPULLDOWN2 | USB3_FORCE_DPPULLDOWN2 - | USB3_SEL_FORCE_DMPULLDOWN2 | USB3_FORCE_DMPULLDOWN2); - - val |= USB3_DEVICE_NOT_HOST | USB3_FORCE_VBUSVALID; - break; - - case USB_DR_MODE_HOST: - val &= ~(USB3_DEVICE_NOT_HOST | USB3_FORCE_VBUSVALID - | USB3_SEL_FORCE_OPMODE | USB3_FORCE_OPMODE(0x3) - | USB3_SEL_FORCE_DPPULLDOWN2 | USB3_FORCE_DPPULLDOWN2 - | USB3_SEL_FORCE_DMPULLDOWN2 | USB3_FORCE_DMPULLDOWN2); - - val |= USB3_DELAY_VBUSVALID; - break; - - default: - pr_err("Unsupported mode of operation %d\n", plat->mode); - return -EINVAL; - } - writel(val, plat->syscfg_base + plat->syscfg_offset); - - return 0; -} - -static void sti_dwc3_glue_init(struct sti_dwc3_glue_plat *plat) -{ - unsigned long reg; - - reg = readl(plat->glue_base + CLKRST_CTRL); - - reg |= AUX_CLK_EN | EXT_CFG_RESET_N | XHCI_REVISION; - reg &= ~SW_PIPEW_RESET_N; - - writel(reg, plat->glue_base + CLKRST_CTRL); - - /* configure mux for vbus, powerpresent and bvalid signals */ - reg = readl(plat->glue_base + USB2_VBUS_MNGMNT_SEL1); - - reg |= SEL_OVERRIDE_VBUSVALID(USB2_VBUS_UTMIOTG) | - SEL_OVERRIDE_POWERPRESENT(USB2_VBUS_UTMIOTG) | - SEL_OVERRIDE_BVALID(USB2_VBUS_UTMIOTG); - - writel(reg, plat->glue_base + USB2_VBUS_MNGMNT_SEL1); - - setbits_le32(plat->glue_base + CLKRST_CTRL, SW_PIPEW_RESET_N); -} - -static int sti_dwc3_glue_of_to_plat(struct udevice *dev) -{ - struct sti_dwc3_glue_plat *plat = dev_get_plat(dev); - struct udevice *syscon; - struct regmap *regmap; - int ret; - u32 reg[4]; - - ret = ofnode_read_u32_array(dev_ofnode(dev), "reg", reg, - ARRAY_SIZE(reg)); - if (ret) { - pr_err("unable to find st,stih407-dwc3 reg property(%d)\n", ret); - return ret; - } - - plat->glue_base = reg[0]; - plat->syscfg_offset = reg[2]; - - /* get corresponding syscon phandle */ - ret = uclass_get_device_by_phandle(UCLASS_SYSCON, dev, "st,syscfg", - &syscon); - if (ret) { - pr_err("unable to find syscon device (%d)\n", ret); - return ret; - } - - /* get syscfg-reg base address */ - regmap = syscon_get_regmap(syscon); - if (!regmap) { - pr_err("unable to find regmap\n"); - return -ENODEV; - } - plat->syscfg_base = regmap->ranges[0].start; - - /* get powerdown reset */ - ret = reset_get_by_name(dev, "powerdown", &plat->powerdown_ctl); - if (ret) { - pr_err("can't get powerdown reset for %s (%d)", dev->name, ret); - return ret; - } - - /* get softreset reset */ - ret = reset_get_by_name(dev, "softreset", &plat->softreset_ctl); - if (ret) - pr_err("can't get soft reset for %s (%d)", dev->name, ret); - - return ret; -}; - -static int sti_dwc3_glue_bind(struct udevice *dev) -{ - struct sti_dwc3_glue_plat *plat = dev_get_plat(dev); - ofnode node, dwc3_node; - - /* Find snps,dwc3 node from subnode */ - ofnode_for_each_subnode(node, dev_ofnode(dev)) { - if (ofnode_device_is_compatible(node, "snps,dwc3")) - dwc3_node = node; - } - - if (!ofnode_valid(dwc3_node)) { - pr_err("Can't find dwc3 subnode for %s\n", dev->name); - return -ENODEV; - } - - /* retrieve the DWC3 dual role mode */ - plat->mode = usb_get_dr_mode(dwc3_node); - if (plat->mode == USB_DR_MODE_UNKNOWN) - /* by default set dual role mode to HOST */ - plat->mode = USB_DR_MODE_HOST; - - return dm_scan_fdt_dev(dev); -} - -static int sti_dwc3_glue_probe(struct udevice *dev) -{ - struct sti_dwc3_glue_plat *plat = dev_get_plat(dev); - int ret; - - /* deassert both powerdown and softreset */ - ret = reset_deassert(&plat->powerdown_ctl); - if (ret < 0) { - pr_err("DWC3 powerdown reset deassert failed: %d", ret); - return ret; - } - - ret = reset_deassert(&plat->softreset_ctl); - if (ret < 0) { - pr_err("DWC3 soft reset deassert failed: %d", ret); - goto softreset_err; - } - - ret = sti_dwc3_glue_drd_init(plat); - if (ret) - goto init_err; - - sti_dwc3_glue_init(plat); - - return 0; - -init_err: - ret = reset_assert(&plat->softreset_ctl); - if (ret < 0) { - pr_err("DWC3 soft reset deassert failed: %d", ret); - return ret; - } - -softreset_err: - ret = reset_assert(&plat->powerdown_ctl); - if (ret < 0) - pr_err("DWC3 powerdown reset deassert failed: %d", ret); - - return ret; -} - -static int sti_dwc3_glue_remove(struct udevice *dev) -{ - struct sti_dwc3_glue_plat *plat = dev_get_plat(dev); - int ret; - - /* assert both powerdown and softreset */ - ret = reset_assert(&plat->powerdown_ctl); - if (ret < 0) { - pr_err("DWC3 powerdown reset deassert failed: %d", ret); - return ret; - } - - ret = reset_assert(&plat->softreset_ctl); - if (ret < 0) - pr_err("DWC3 soft reset deassert failed: %d", ret); - - return ret; -} - -static const struct udevice_id sti_dwc3_glue_ids[] = { - { .compatible = "st,stih407-dwc3" }, - { } -}; - -U_BOOT_DRIVER(dwc3_sti_glue) = { - .name = "dwc3_sti_glue", - .id = UCLASS_NOP, - .of_match = sti_dwc3_glue_ids, - .of_to_plat = sti_dwc3_glue_of_to_plat, - .probe = sti_dwc3_glue_probe, - .remove = sti_dwc3_glue_remove, - .bind = sti_dwc3_glue_bind, - .plat_auto = sizeof(struct sti_dwc3_glue_plat), - .flags = DM_FLAG_ALLOC_PRIV_DMA, -}; |