STi is now using the dwc3-generic driver, dwc3-sti-glue driver can be removed.
Signed-off-by: Patrice Chotard patrice.chotard@foss.st.com Cc: Marek Vasut marex@denx.de ---
MAINTAINERS | 2 - drivers/usb/host/Kconfig | 9 -- drivers/usb/host/Makefile | 1 - drivers/usb/host/dwc3-sti-glue.c | 253 ------------------------------- 4 files changed, 265 deletions(-) delete mode 100644 drivers/usb/host/dwc3-sti-glue.c
diff --git a/MAINTAINERS b/MAINTAINERS index 8c6c0c2a4bc..0e93f88c2aa 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -657,8 +657,6 @@ F: drivers/reset/sti-reset.c F: drivers/serial/serial_sti_asc.c F: drivers/sysreset/sysreset_sti.c F: drivers/timer/arm_global_timer.c -F: drivers/usb/host/dwc3-sti-glue.c -F: include/dwc3-sti-glue.h F: include/dt-bindings/clock/stih407-clks.h F: include/dt-bindings/clock/stih410-clks.h F: include/dt-bindings/reset/stih407-resets.h diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 24786a2bc91..cd1c03f10d7 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, -};