diff options
| -rw-r--r-- | configs/uniphier_v7_defconfig | 1 | ||||
| -rw-r--r-- | configs/uniphier_v8_defconfig | 1 | ||||
| -rw-r--r-- | drivers/clk/uniphier/clk-uniphier-sys.c | 5 | ||||
| -rw-r--r-- | drivers/phy/socionext/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/phy/socionext/Makefile | 1 | ||||
| -rw-r--r-- | drivers/phy/socionext/phy-uniphier-usb3.c | 168 | ||||
| -rw-r--r-- | drivers/reset/reset-uniphier.c | 78 | ||||
| -rw-r--r-- | drivers/usb/dwc3/Kconfig | 4 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-generic.c | 132 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-generic.h | 33 | ||||
| -rw-r--r-- | drivers/usb/dwc3/dwc3-uniphier.c | 116 |
11 files changed, 453 insertions, 94 deletions
diff --git a/configs/uniphier_v7_defconfig b/configs/uniphier_v7_defconfig index d626968..03feb04 100644 --- a/configs/uniphier_v7_defconfig +++ b/configs/uniphier_v7_defconfig @@ -82,7 +82,6 @@ CONFIG_DM_SPI=y CONFIG_UNIPHIER_SPI=y CONFIG_USB=y CONFIG_USB_XHCI_HCD=y -CONFIG_USB_XHCI_DWC3=y CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_GENERIC=y CONFIG_USB_DWC3=y diff --git a/configs/uniphier_v8_defconfig b/configs/uniphier_v8_defconfig index 6a0e266..ed58b57 100644 --- a/configs/uniphier_v8_defconfig +++ b/configs/uniphier_v8_defconfig @@ -71,7 +71,6 @@ CONFIG_SYSRESET=y CONFIG_SYSRESET_PSCI=y CONFIG_USB=y CONFIG_USB_XHCI_HCD=y -CONFIG_USB_XHCI_DWC3=y CONFIG_USB_EHCI_HCD=y CONFIG_USB_EHCI_GENERIC=y CONFIG_USB_DWC3=y diff --git a/drivers/clk/uniphier/clk-uniphier-sys.c b/drivers/clk/uniphier/clk-uniphier-sys.c index ff5d364..3b8595f 100644 --- a/drivers/clk/uniphier/clk-uniphier-sys.c +++ b/drivers/clk/uniphier/clk-uniphier-sys.c @@ -28,7 +28,10 @@ const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[] = { UNIPHIER_CLK_GATE_SIMPLE(14, 0x2104, 16), /* usb30 (Pro4, Pro5, PXs2) */ UNIPHIER_CLK_GATE_SIMPLE(15, 0x2104, 17), /* usb31 (Pro4, Pro5, PXs2) */ UNIPHIER_CLK_GATE_SIMPLE(16, 0x2104, 19), /* usb30-phy (PXs2) */ + UNIPHIER_CLK_RATE(17, 25000000), /* usb30-phy2 (PXs2) */ + UNIPHIER_CLK_RATE(18, 25000000), /* usb30-phy3 (PXs2) */ UNIPHIER_CLK_GATE_SIMPLE(20, 0x2104, 20), /* usb31-phy (PXs2) */ + UNIPHIER_CLK_RATE(21, 25000000), /* usb31-phy2 (PXs2) */ UNIPHIER_CLK_GATE_SIMPLE(24, 0x2108, 2), /* pcie (Pro5) */ { /* sentinel */ } #endif @@ -44,6 +47,8 @@ const struct uniphier_clk_data uniphier_ld20_sys_clk_data[] = { UNIPHIER_CLK_GATE_SIMPLE(14, 0x210c, 14), /* usb30 (LD20) */ UNIPHIER_CLK_GATE_SIMPLE(16, 0x210c, 12), /* usb30-phy0 (LD20) */ UNIPHIER_CLK_GATE_SIMPLE(17, 0x210c, 13), /* usb30-phy1 (LD20) */ + UNIPHIER_CLK_RATE(18, 25000000), /* usb30-phy2 (LD20) */ + UNIPHIER_CLK_RATE(19, 25000000), /* usb30-phy3 (LD20) */ UNIPHIER_CLK_GATE_SIMPLE(24, 0x210c, 4), /* pcie */ { /* sentinel */ } #endif diff --git a/drivers/phy/socionext/Kconfig b/drivers/phy/socionext/Kconfig index bcd579e..de87d5b0 100644 --- a/drivers/phy/socionext/Kconfig +++ b/drivers/phy/socionext/Kconfig @@ -10,3 +10,11 @@ config PHY_UNIPHIER_PCIE help Enable this to support PHY implemented in PCIe controller on UniPhier SoCs. + +config PHY_UNIPHIER_USB3 + bool "UniPhier USB3 PHY driver" + depends on PHY && ARCH_UNIPHIER + imply REGMAP + help + Enable this to support PHY implemented in USB3 controller + on UniPhier SoCs. diff --git a/drivers/phy/socionext/Makefile b/drivers/phy/socionext/Makefile index 5484360..94d3aa6 100644 --- a/drivers/phy/socionext/Makefile +++ b/drivers/phy/socionext/Makefile @@ -4,3 +4,4 @@ # obj-$(CONFIG_PHY_UNIPHIER_PCIE) += phy-uniphier-pcie.o +obj-$(CONFIG_PHY_UNIPHIER_USB3) += phy-uniphier-usb3.o diff --git a/drivers/phy/socionext/phy-uniphier-usb3.c b/drivers/phy/socionext/phy-uniphier-usb3.c new file mode 100644 index 0000000..1d65b0b --- /dev/null +++ b/drivers/phy/socionext/phy-uniphier-usb3.c @@ -0,0 +1,168 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * phy_uniphier_usb3.c - Socionext UniPhier Usb3 PHY driver + * Copyright 2019-2023 Socionext, Inc. + */ + +#include <common.h> +#include <dm.h> +#include <generic-phy.h> + +#include <clk.h> +#include <reset.h> + +struct uniphier_usb3phy_priv { + struct clk *clk_link, *clk_phy, *clk_parent, *clk_phyext; + struct reset_ctl *rst_link, *rst_phy, *rst_parent; +}; + +static int uniphier_usb3phy_init(struct phy *phy) +{ + struct uniphier_usb3phy_priv *priv = dev_get_priv(phy->dev); + int ret; + + ret = clk_enable(priv->clk_phy); + if (ret) + return ret; + + ret = reset_deassert(priv->rst_phy); + if (ret) + goto out_clk; + + if (priv->clk_phyext) { + ret = clk_enable(priv->clk_phyext); + if (ret) + goto out_rst; + } + + return 0; + +out_rst: + reset_assert(priv->rst_phy); +out_clk: + clk_disable(priv->clk_phy); + + return ret; +} + +static int uniphier_usb3phy_exit(struct phy *phy) +{ + struct uniphier_usb3phy_priv *priv = dev_get_priv(phy->dev); + + if (priv->clk_phyext) + clk_disable(priv->clk_phyext); + + reset_assert(priv->rst_phy); + clk_disable(priv->clk_phy); + + return 0; +} + +static int uniphier_usb3phy_probe(struct udevice *dev) +{ + struct uniphier_usb3phy_priv *priv = dev_get_priv(dev); + int ret; + + priv->clk_link = devm_clk_get(dev, "link"); + if (IS_ERR(priv->clk_link)) { + printf("Failed to get link clock\n"); + return PTR_ERR(priv->clk_link); + } + + priv->clk_phy = devm_clk_get(dev, "phy"); + if (IS_ERR(priv->clk_link)) { + printf("Failed to get phy clock\n"); + return PTR_ERR(priv->clk_link); + } + + priv->clk_parent = devm_clk_get_optional(dev, "gio"); + if (IS_ERR(priv->clk_parent)) { + printf("Failed to get parent clock\n"); + return PTR_ERR(priv->clk_parent); + } + + priv->clk_phyext = devm_clk_get_optional(dev, "phy-ext"); + if (IS_ERR(priv->clk_phyext)) { + printf("Failed to get external phy clock\n"); + return PTR_ERR(priv->clk_phyext); + } + + priv->rst_link = devm_reset_control_get(dev, "link"); + if (IS_ERR(priv->rst_link)) { + printf("Failed to get link reset\n"); + return PTR_ERR(priv->rst_link); + } + + priv->rst_phy = devm_reset_control_get(dev, "phy"); + if (IS_ERR(priv->rst_phy)) { + printf("Failed to get phy reset\n"); + return PTR_ERR(priv->rst_phy); + } + + priv->rst_parent = devm_reset_control_get_optional(dev, "gio"); + if (IS_ERR(priv->rst_parent)) { + printf("Failed to get parent reset\n"); + return PTR_ERR(priv->rst_parent); + } + + if (priv->clk_parent) { + ret = clk_enable(priv->clk_parent); + if (ret) + return ret; + } + if (priv->rst_parent) { + ret = reset_deassert(priv->rst_parent); + if (ret) + goto out_clk_parent; + } + + ret = clk_enable(priv->clk_link); + if (ret) + goto out_rst_parent; + + ret = reset_deassert(priv->rst_link); + if (ret) + goto out_clk; + + return 0; + +out_clk: + clk_disable(priv->clk_link); +out_rst_parent: + if (priv->rst_parent) + reset_assert(priv->rst_parent); +out_clk_parent: + if (priv->clk_parent) + clk_disable(priv->clk_parent); + + return ret; +} + +static struct phy_ops uniphier_usb3phy_ops = { + .init = uniphier_usb3phy_init, + .exit = uniphier_usb3phy_exit, +}; + +static const struct udevice_id uniphier_usb3phy_ids[] = { + { .compatible = "socionext,uniphier-pro4-usb3-ssphy" }, + { .compatible = "socionext,uniphier-pro5-usb3-hsphy" }, + { .compatible = "socionext,uniphier-pro5-usb3-ssphy" }, + { .compatible = "socionext,uniphier-pxs2-usb3-hsphy" }, + { .compatible = "socionext,uniphier-pxs2-usb3-ssphy" }, + { .compatible = "socionext,uniphier-ld20-usb3-hsphy" }, + { .compatible = "socionext,uniphier-ld20-usb3-ssphy" }, + { .compatible = "socionext,uniphier-pxs3-usb3-hsphy" }, + { .compatible = "socionext,uniphier-pxs3-usb3-ssphy" }, + { .compatible = "socionext,uniphier-nx1-usb3-hsphy" }, + { .compatible = "socionext,uniphier-nx1-usb3-ssphy" }, + { } +}; + +U_BOOT_DRIVER(uniphier_usb3_phy) = { + .name = "uniphier-usb3-phy", + .id = UCLASS_PHY, + .of_match = uniphier_usb3phy_ids, + .ops = &uniphier_usb3phy_ops, + .probe = uniphier_usb3phy_probe, + .priv_auto = sizeof(struct uniphier_usb3phy_priv), +}; diff --git a/drivers/reset/reset-uniphier.c b/drivers/reset/reset-uniphier.c index 7adae51..35e3cce 100644 --- a/drivers/reset/reset-uniphier.c +++ b/drivers/reset/reset-uniphier.c @@ -2,6 +2,7 @@ /* * Copyright (C) 2016 Socionext Inc. * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + * Author: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> */ #include <common.h> @@ -9,6 +10,8 @@ #include <log.h> #include <malloc.h> #include <reset-uclass.h> +#include <clk.h> +#include <reset.h> #include <dm/device_compat.h> #include <linux/bitops.h> #include <linux/io.h> @@ -178,10 +181,17 @@ static const struct uniphier_reset_data uniphier_pro4_peri_reset_data[] = { UNIPHIER_RESET_END, }; +/* Glue reset data */ +static const struct uniphier_reset_data uniphier_pro4_usb3_reset_data[] = { + UNIPHIER_RESETX(15, 0, 15) +}; + /* core implementaton */ struct uniphier_reset_priv { void __iomem *base; const struct uniphier_reset_data *data; + struct clk_bulk clks; + struct reset_ctl_bulk rsts; }; static int uniphier_reset_update(struct reset_ctl *reset_ctl, int assert) @@ -233,10 +243,47 @@ static const struct reset_ops uniphier_reset_ops = { .rst_deassert = uniphier_reset_deassert, }; +static int uniphier_reset_rst_init(struct udevice *dev) +{ + struct uniphier_reset_priv *priv = dev_get_priv(dev); + int ret; + + ret = reset_get_bulk(dev, &priv->rsts); + if (ret == -ENOSYS || ret == -ENOENT) + return 0; + else if (ret) + return ret; + + ret = reset_deassert_bulk(&priv->rsts); + if (ret) + reset_release_bulk(&priv->rsts); + + return ret; +} + +static int uniphier_reset_clk_init(struct udevice *dev) +{ + struct uniphier_reset_priv *priv = dev_get_priv(dev); + int ret; + + ret = clk_get_bulk(dev, &priv->clks); + if (ret == -ENOSYS || ret == -ENOENT) + return 0; + if (ret) + return ret; + + ret = clk_enable_bulk(&priv->clks); + if (ret) + clk_release_bulk(&priv->clks); + + return ret; +} + static int uniphier_reset_probe(struct udevice *dev) { struct uniphier_reset_priv *priv = dev_get_priv(dev); fdt_addr_t addr; + int ret; addr = dev_read_addr(dev->parent); if (addr == FDT_ADDR_T_NONE) @@ -248,7 +295,11 @@ static int uniphier_reset_probe(struct udevice *dev) priv->data = (void *)dev_get_driver_data(dev); - return 0; + ret = uniphier_reset_clk_init(dev); + if (ret) + return ret; + + return uniphier_reset_rst_init(dev); } static const struct udevice_id uniphier_reset_match[] = { @@ -355,6 +406,31 @@ static const struct udevice_id uniphier_reset_match[] = { .compatible = "socionext,uniphier-pxs3-peri-reset", .data = (ulong)uniphier_pro4_peri_reset_data, }, + /* USB glue reset */ + { + .compatible = "socionext,uniphier-pro4-usb3-reset", + .data = (ulong)uniphier_pro4_usb3_reset_data, + }, + { + .compatible = "socionext,uniphier-pro5-usb3-reset", + .data = (ulong)uniphier_pro4_usb3_reset_data, + }, + { + .compatible = "socionext,uniphier-pxs2-usb3-reset", + .data = (ulong)uniphier_pro4_usb3_reset_data, + }, + { + .compatible = "socionext,uniphier-ld20-usb3-reset", + .data = (ulong)uniphier_pro4_usb3_reset_data, + }, + { + .compatible = "socionext,uniphier-pxs3-usb3-reset", + .data = (ulong)uniphier_pro4_usb3_reset_data, + }, + { + .compatible = "socionext,uniphier-nx1-usb3-reset", + .data = (ulong)uniphier_pro4_usb3_reset_data, + }, { /* sentinel */ } }; diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index f010291..7ddfa94 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -55,7 +55,9 @@ config USB_DWC3_MESON_GXL config USB_DWC3_UNIPHIER bool "DesignWare USB3 Host Support on UniPhier Platforms" - depends on ARCH_UNIPHIER && USB_XHCI_DWC3 + depends on ARCH_UNIPHIER && USB_DWC3 + select USB_DWC3_GENERIC + select PHY_UNIPHIER_USB3 help Support of USB2/3 functionality in Socionext UniPhier platforms. Say 'Y' here if you have one such device. diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c index 7896671..acbf7ac 100644 --- a/drivers/usb/dwc3/dwc3-generic.c +++ b/drivers/usb/dwc3/dwc3-generic.c @@ -28,11 +28,7 @@ #include <usb/xhci.h> #include <asm/gpio.h> -struct dwc3_glue_data { - struct clk_bulk clks; - struct reset_ctl_bulk resets; - fdt_addr_t regs; -}; +#include "dwc3-generic.h" struct dwc3_generic_plat { fdt_addr_t base; @@ -68,10 +64,27 @@ static int dwc3_generic_probe(struct udevice *dev, #if CONFIG_IS_ENABLED(OF_CONTROL) dwc3_of_parse(dwc3); + /* + * There are currently four disparate placement possibilities of DWC3 + * reference clock phandle in SoC DTs: + * - in top level glue node, with generic subnode without clock (ZynqMP) + * - in top level generic node, with no subnode (i.MX8MQ) + * - in generic subnode, with other clock in top level node (i.MX8MP) + * - in both top level node and generic subnode (Rockchip) + * Cover all the possibilities here by looking into both nodes, start + * with the top level node as that seems to be used in majority of DTs + * to reference the clock. + */ node = dev_ofnode(dev->parent); index = ofnode_stringlist_search(node, "clock-names", "ref"); if (index < 0) index = ofnode_stringlist_search(node, "clock-names", "ref_clk"); + if (index < 0) { + node = dev_ofnode(dev); + index = ofnode_stringlist_search(node, "clock-names", "ref"); + if (index < 0) + index = ofnode_stringlist_search(node, "clock-names", "ref_clk"); + } if (index >= 0) dwc3->ref_clk = &glue->clks.clks[index]; #endif @@ -258,11 +271,6 @@ U_BOOT_DRIVER(dwc3_generic_host) = { }; #endif -struct dwc3_glue_ops { - void (*glue_configure)(struct udevice *dev, int index, - enum usb_dr_mode mode); -}; - void dwc3_imx8mp_glue_configure(struct udevice *dev, int index, enum usb_dr_mode mode) { @@ -398,54 +406,74 @@ struct dwc3_glue_ops ti_ops = { .glue_configure = dwc3_ti_glue_configure, }; -static int dwc3_glue_bind(struct udevice *parent) +static int dwc3_glue_bind_common(struct udevice *parent, ofnode node) { - ofnode node; - int ret; + const char *name = ofnode_get_name(node); + const char *driver = NULL; enum usb_dr_mode dr_mode; + struct udevice *dev; + int ret; - dr_mode = usb_get_dr_mode(dev_ofnode(parent)); - - ofnode_for_each_subnode(node, dev_ofnode(parent)) { - const char *name = ofnode_get_name(node); - struct udevice *dev; - const char *driver = NULL; - - debug("%s: subnode name: %s\n", __func__, name); + debug("%s: subnode name: %s\n", __func__, name); - /* if the parent node doesn't have a mode check the leaf */ - if (!dr_mode) - dr_mode = usb_get_dr_mode(node); + /* if the parent node doesn't have a mode check the leaf */ + dr_mode = usb_get_dr_mode(dev_ofnode(parent)); + if (!dr_mode) + dr_mode = usb_get_dr_mode(node); - switch (dr_mode) { - case USB_DR_MODE_PERIPHERAL: - case USB_DR_MODE_OTG: + switch (dr_mode) { + case USB_DR_MODE_PERIPHERAL: + case USB_DR_MODE_OTG: #if CONFIG_IS_ENABLED(DM_USB_GADGET) - debug("%s: dr_mode: OTG or Peripheral\n", __func__); - driver = "dwc3-generic-peripheral"; + debug("%s: dr_mode: OTG or Peripheral\n", __func__); + driver = "dwc3-generic-peripheral"; #endif - break; + break; #if defined(CONFIG_SPL_USB_HOST) || !defined(CONFIG_SPL_BUILD) - case USB_DR_MODE_HOST: - debug("%s: dr_mode: HOST\n", __func__); - driver = "dwc3-generic-host"; - break; + case USB_DR_MODE_HOST: + debug("%s: dr_mode: HOST\n", __func__); + driver = "dwc3-generic-host"; + break; #endif - default: - debug("%s: unsupported dr_mode\n", __func__); - return -ENODEV; - }; + default: + debug("%s: unsupported dr_mode\n", __func__); + return -ENODEV; + }; - if (!driver) - continue; + if (!driver) + return -ENXIO; + + ret = device_bind_driver_to_node(parent, driver, name, + node, &dev); + if (ret) { + debug("%s: not able to bind usb device mode\n", + __func__); + return ret; + } + + return 0; +} - ret = device_bind_driver_to_node(parent, driver, name, - node, &dev); - if (ret) { - debug("%s: not able to bind usb device mode\n", - __func__); +int dwc3_glue_bind(struct udevice *parent) +{ + struct dwc3_glue_ops *ops = (struct dwc3_glue_ops *)dev_get_driver_data(parent); + ofnode node; + int ret; + + if (ops && ops->glue_get_ctrl_dev) { + ret = ops->glue_get_ctrl_dev(parent, &node); + if (ret) + return ret; + + return dwc3_glue_bind_common(parent, node); + } + + ofnode_for_each_subnode(node, dev_ofnode(parent)) { + ret = dwc3_glue_bind_common(parent, node); + if (ret == -ENXIO) + continue; + if (ret) return ret; - } } return 0; @@ -493,7 +521,7 @@ static int dwc3_glue_clk_init(struct udevice *dev, return 0; } -static int dwc3_glue_probe(struct udevice *dev) +int dwc3_glue_probe(struct udevice *dev) { struct dwc3_glue_ops *ops = (struct dwc3_glue_ops *)dev_get_driver_data(dev); struct dwc3_glue_data *glue = dev_get_plat(dev); @@ -514,7 +542,7 @@ static int dwc3_glue_probe(struct udevice *dev) phy.dev = NULL; } - glue->regs = dev_read_addr(dev); + glue->regs = dev_read_addr_size_index(dev, 0, &glue->size); ret = dwc3_glue_clk_init(dev, glue); if (ret) @@ -534,6 +562,12 @@ static int dwc3_glue_probe(struct udevice *dev) if (ret) return ret; + if (glue->clks.count == 0) { + ret = dwc3_glue_clk_init(child, glue); + if (ret) + return ret; + } + if (glue->resets.count == 0) { ret = dwc3_glue_reset_init(child, glue); if (ret) @@ -553,7 +587,7 @@ static int dwc3_glue_probe(struct udevice *dev) return 0; } -static int dwc3_glue_remove(struct udevice *dev) +int dwc3_glue_remove(struct udevice *dev) { struct dwc3_glue_data *glue = dev_get_plat(dev); diff --git a/drivers/usb/dwc3/dwc3-generic.h b/drivers/usb/dwc3/dwc3-generic.h new file mode 100644 index 0000000..40902c8 --- /dev/null +++ b/drivers/usb/dwc3/dwc3-generic.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * dwc3-generic.h - Generic DWC3 Glue layer header + * + * Copyright (C) 2016 - 2018 Xilinx, Inc. + * Copyright (C) 2023 Socionext Inc. + */ + +#ifndef __DRIVERS_USB_DWC3_GENERIC_H +#define __DRIVERS_USB_DWC3_GENERIC_H + +#include <clk.h> +#include <reset.h> +#include <dwc3-uboot.h> + +struct dwc3_glue_data { + struct clk_bulk clks; + struct reset_ctl_bulk resets; + fdt_addr_t regs; + fdt_size_t size; +}; + +struct dwc3_glue_ops { + int (*glue_get_ctrl_dev)(struct udevice *parent, ofnode *node); + void (*glue_configure)(struct udevice *dev, int index, + enum usb_dr_mode mode); +}; + +int dwc3_glue_bind(struct udevice *parent); +int dwc3_glue_probe(struct udevice *dev); +int dwc3_glue_remove(struct udevice *dev); + +#endif diff --git a/drivers/usb/dwc3/dwc3-uniphier.c b/drivers/usb/dwc3/dwc3-uniphier.c index 54b52dc..ab85428 100644 --- a/drivers/usb/dwc3/dwc3-uniphier.c +++ b/drivers/usb/dwc3/dwc3-uniphier.c @@ -4,14 +4,17 @@ * * Copyright (C) 2016-2017 Socionext Inc. * Author: Masahiro Yamada <yamada.masahiro@socionext.com> + * Author: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> */ #include <dm.h> -#include <dm/device_compat.h> +#include <dm/lists.h> #include <linux/bitops.h> -#include <linux/errno.h> -#include <linux/io.h> -#include <linux/sizes.h> +#include <linux/usb/gadget.h> + +#include "core.h" +#include "gadget.h" +#include "dwc3-generic.h" #define UNIPHIER_PRO4_DWC3_RESET 0x40 #define UNIPHIER_PRO4_DWC3_RESET_XIOMMU BIT(5) @@ -27,8 +30,11 @@ #define UNIPHIER_PXS2_DWC3_RESET 0x00 #define UNIPHIER_PXS2_DWC3_RESET_XLINK BIT(15) -static int uniphier_pro4_dwc3_init(void __iomem *regs) +static void uniphier_pro4_dwc3_init(struct udevice *dev, int index, + enum usb_dr_mode mode) { + struct dwc3_glue_data *glue = dev_get_plat(dev); + void *regs = map_physmem(glue->regs, glue->size, MAP_NOCACHE); u32 tmp; tmp = readl(regs + UNIPHIER_PRO4_DWC3_RESET); @@ -36,11 +42,14 @@ static int uniphier_pro4_dwc3_init(void __iomem *regs) tmp |= UNIPHIER_PRO4_DWC3_RESET_XIOMMU | UNIPHIER_PRO4_DWC3_RESET_XLINK; writel(tmp, regs + UNIPHIER_PRO4_DWC3_RESET); - return 0; + unmap_physmem(regs, MAP_NOCACHE); } -static int uniphier_pro5_dwc3_init(void __iomem *regs) +static void uniphier_pro5_dwc3_init(struct udevice *dev, int index, + enum usb_dr_mode mode) { + struct dwc3_glue_data *glue = dev_get_plat(dev); + void *regs = map_physmem(glue->regs, glue->size, MAP_NOCACHE); u32 tmp; tmp = readl(regs + UNIPHIER_PRO5_DWC3_RESET); @@ -49,72 +58,97 @@ static int uniphier_pro5_dwc3_init(void __iomem *regs) tmp |= UNIPHIER_PRO5_DWC3_RESET_XLINK | UNIPHIER_PRO5_DWC3_RESET_XIOMMU; writel(tmp, regs + UNIPHIER_PRO5_DWC3_RESET); - return 0; + unmap_physmem(regs, MAP_NOCACHE); } -static int uniphier_pxs2_dwc3_init(void __iomem *regs) +static void uniphier_pxs2_dwc3_init(struct udevice *dev, int index, + enum usb_dr_mode mode) { + struct dwc3_glue_data *glue = dev_get_plat(dev); + void *regs = map_physmem(glue->regs, glue->size, MAP_NOCACHE); u32 tmp; tmp = readl(regs + UNIPHIER_PXS2_DWC3_RESET); tmp |= UNIPHIER_PXS2_DWC3_RESET_XLINK; writel(tmp, regs + UNIPHIER_PXS2_DWC3_RESET); - return 0; + unmap_physmem(regs, MAP_NOCACHE); } -static int uniphier_dwc3_probe(struct udevice *dev) +static int dwc3_uniphier_glue_get_ctrl_dev(struct udevice *dev, ofnode *node) { - fdt_addr_t base; - void __iomem *regs; - int (*init)(void __iomem *regs); - int ret; + struct udevice *child; + const char *name; + ofnode subnode; + + /* + * "controller reset" belongs to glue logic, and it should be + * accessible in .glue_configure() before access to the controller + * begins. + */ + ofnode_for_each_subnode(subnode, dev_ofnode(dev)) { + name = ofnode_get_name(subnode); + if (!strncmp(name, "reset", 5)) + device_bind_driver_to_node(dev, "uniphier-reset", + name, subnode, &child); + } + + /* Get controller node that is placed separately from the glue node */ + *node = ofnode_by_compatible(dev_ofnode(dev->parent), + "socionext,uniphier-dwc3"); - base = dev_read_addr(dev); - if (base == FDT_ADDR_T_NONE) - return -EINVAL; - - regs = ioremap(base, SZ_32K); - if (!regs) - return -ENOMEM; + return 0; +} - init = (typeof(init))dev_get_driver_data(dev); - ret = init(regs); - if (ret) - dev_err(dev, "failed to init glue layer\n"); +static const struct dwc3_glue_ops uniphier_pro4_dwc3_ops = { + .glue_get_ctrl_dev = dwc3_uniphier_glue_get_ctrl_dev, + .glue_configure = uniphier_pro4_dwc3_init, +}; - iounmap(regs); +static const struct dwc3_glue_ops uniphier_pro5_dwc3_ops = { + .glue_get_ctrl_dev = dwc3_uniphier_glue_get_ctrl_dev, + .glue_configure = uniphier_pro5_dwc3_init, +}; - return ret; -} +static const struct dwc3_glue_ops uniphier_pxs2_dwc3_ops = { + .glue_get_ctrl_dev = dwc3_uniphier_glue_get_ctrl_dev, + .glue_configure = uniphier_pxs2_dwc3_init, +}; static const struct udevice_id uniphier_dwc3_match[] = { { - .compatible = "socionext,uniphier-pro4-dwc3", - .data = (ulong)uniphier_pro4_dwc3_init, + .compatible = "socionext,uniphier-pro4-dwc3-glue", + .data = (ulong)&uniphier_pro4_dwc3_ops, + }, + { + .compatible = "socionext,uniphier-pro5-dwc3-glue", + .data = (ulong)&uniphier_pro5_dwc3_ops, }, { - .compatible = "socionext,uniphier-pro5-dwc3", - .data = (ulong)uniphier_pro5_dwc3_init, + .compatible = "socionext,uniphier-pxs2-dwc3-glue", + .data = (ulong)&uniphier_pxs2_dwc3_ops, }, { - .compatible = "socionext,uniphier-pxs2-dwc3", - .data = (ulong)uniphier_pxs2_dwc3_init, + .compatible = "socionext,uniphier-ld20-dwc3-glue", + .data = (ulong)&uniphier_pxs2_dwc3_ops, }, { - .compatible = "socionext,uniphier-ld20-dwc3", - .data = (ulong)uniphier_pxs2_dwc3_init, + .compatible = "socionext,uniphier-pxs3-dwc3-glue", + .data = (ulong)&uniphier_pxs2_dwc3_ops, }, { - .compatible = "socionext,uniphier-pxs3-dwc3", - .data = (ulong)uniphier_pxs2_dwc3_init, + .compatible = "socionext,uniphier-nx1-dwc3-glue", + .data = (ulong)&uniphier_pxs2_dwc3_ops, }, { /* sentinel */ } }; -U_BOOT_DRIVER(usb_xhci) = { +U_BOOT_DRIVER(dwc3_uniphier_wrapper) = { .name = "uniphier-dwc3", .id = UCLASS_SIMPLE_BUS, .of_match = uniphier_dwc3_match, - .probe = uniphier_dwc3_probe, + .bind = dwc3_glue_bind, + .probe = dwc3_glue_probe, + .remove = dwc3_glue_remove, + .plat_auto = sizeof(struct dwc3_glue_data), }; |