From 693765a720ba4f116923372deb0c32488f031cf8 Mon Sep 17 00:00:00 2001 From: Jim Liu Date: Tue, 21 Jun 2022 17:09:02 +0800 Subject: [PATCH] usb: host: nuvoton: Add nuvoton NPCM7xx ehci/ohci driver Add nuvoton BMC NPCM750 ehci/ohci driver Signed-off-by: Jim Liu --- drivers/usb/host/Kconfig | 16 +++++ drivers/usb/host/Makefile | 2 + drivers/usb/host/ehci-npcm.c | 119 +++++++++++++++++++++++++++++++++++ drivers/usb/host/ohci-npcm.c | 108 +++++++++++++++++++++++++++++++ 4 files changed, 245 insertions(+) create mode 100644 drivers/usb/host/ehci-npcm.c create mode 100644 drivers/usb/host/ohci-npcm.c diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index a0f48f09a7..1aabe062fb 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -214,6 +214,14 @@ config USB_EHCI_MXS Enables support for the on-chip EHCI controller on i.MX23 and i.MX28 SoCs. +config USB_EHCI_NPCM + bool "Support for Nuvoton NPCM on-chip EHCI USB controller" + depends on ARCH_NPCM + default n + ---help--- + Enables support for the on-chip EHCI controller on + Nuvoton NPCM chips. + config USB_EHCI_OMAP bool "Support for OMAP3+ on-chip EHCI USB controller" depends on ARCH_OMAP2PLUS @@ -343,6 +351,14 @@ config USB_OHCI_DA8XX help Enable support for the da850 USB controller. +config USB_OHCI_NPCM + bool "Support for Nuvoton NPCM on-chip OHCI USB controller" + depends on ARCH_NPCM + default n + ---help--- + Enables support for the on-chip OHCI controller on + Nuvoton NPCM chips. + endif # USB_OHCI_HCD config SYS_USB_OHCI_SLOT_NAME diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 5fdb804116..ddc3663206 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_USB_SL811HS) += sl811-hcd.o obj-$(CONFIG_USB_OHCI_LPC32XX) += ohci-lpc32xx.o obj-$(CONFIG_USB_OHCI_PCI) += ohci-pci.o obj-$(CONFIG_USB_OHCI_GENERIC) += ohci-generic.o +obj-$(CONFIG_USB_OHCI_NPCM) += ohci-npcm.o # echi obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o @@ -34,6 +35,7 @@ obj-$(CONFIG_USB_EHCI_MXS) += ehci-mxs.o obj-$(CONFIG_USB_EHCI_MX5) += ehci-mx5.o obj-$(CONFIG_USB_EHCI_MX6) += ehci-mx6.o obj-$(CONFIG_USB_EHCI_MX7) += ehci-mx6.o +obj-$(CONFIG_USB_EHCI_NPCM) += ehci-npcm.o obj-$(CONFIG_USB_EHCI_OMAP) += ehci-omap.o obj-$(CONFIG_USB_EHCI_MARVELL) += ehci-marvell.o obj-$(CONFIG_USB_EHCI_MSM) += ehci-msm.o diff --git a/drivers/usb/host/ehci-npcm.c b/drivers/usb/host/ehci-npcm.c new file mode 100644 index 0000000000..357a5614ed --- /dev/null +++ b/drivers/usb/host/ehci-npcm.c @@ -0,0 +1,119 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2021 Nuvoton Technology Corp. + */ + +#include +#include +#include +#include +#include +#include +#include +#include "ehci.h" + +struct npcm_ehci_priv { + struct ehci_ctrl ctrl; + struct ehci_hccr *hcd; + struct phy phy; +}; + +static int npcm_ehci_setup_phy(struct udevice *dev, struct phy *phy) +{ + int ret; + + if (!phy) + return 0; + + ret = generic_phy_get_by_index(dev, 0, phy); + if (ret) { + if (ret != -ENOENT) { + dev_err(dev, "failed to get usb phy\n"); + return ret; + } + } else { + ret = generic_phy_init(phy); + if (ret) { + dev_err(dev, "failed to init usb phy\n"); + return ret; + } + } + + return 0; +} + +static int npcm_ehci_init(struct udevice *dev) +{ + struct npcm_ehci_priv *priv = dev_get_priv(dev); + struct reset_ctl reset; + int ret; + + ret = reset_get_by_index(dev, 0, &reset); + if (ret && ret != -ENOENT && ret != -ENOTSUPP) { + dev_err(dev, "failed to get reset\n"); + return ret; + } + + /* reset controller */ + if (reset_valid(&reset)) + reset_assert(&reset); + + /* setup phy */ + ret = npcm_ehci_setup_phy(dev, &priv->phy); + if (ret) + return ret; + + /* release controller from reset */ + if (reset_valid(&reset)) + reset_deassert(&reset); + + return 0; +} + +static int npcm_ehci_probe(struct udevice *dev) +{ + struct npcm_ehci_priv *priv = dev_get_priv(dev); + struct ehci_hcor *hcor; + enum usb_init_type type = dev_get_driver_data(dev); + int ret; + + ret = npcm_ehci_init(dev); + if (ret) + return ret; + + priv->hcd = (struct ehci_hccr *)dev_read_addr_ptr(dev); + debug("USB HCD @0x%p\n", priv->hcd); + hcor = (struct ehci_hcor *)((uintptr_t)priv->hcd + + HC_LENGTH(ehci_readl(&priv->hcd->cr_capbase))); + + return ehci_register(dev, priv->hcd, hcor, NULL, 0, type); +} + +static int npcm_ehci_remove(struct udevice *dev) +{ + struct npcm_ehci_priv *priv = dev_get_priv(dev); + + generic_phy_exit(&priv->phy); + + return ehci_deregister(dev); +} + +static const struct udevice_id npcm_ehci_ids[] = { + { .compatible = "nuvoton,npcm845-ehci", .data = USB_INIT_HOST }, + { .compatible = "nuvoton,npcm845-udc", .data = USB_INIT_DEVICE }, + { .compatible = "nuvoton,npcm750-ehci", .data = USB_INIT_HOST }, + { .compatible = "nuvoton,npcm750-udc", .data = USB_INIT_DEVICE }, + { } +}; + +U_BOOT_DRIVER(ehci_npcm) = { + .name = "ehci_npcm", + .id = UCLASS_USB, + .of_match = npcm_ehci_ids, + .probe = npcm_ehci_probe, + .remove = npcm_ehci_remove, + .ops = &ehci_usb_ops, + .priv_auto = sizeof(struct npcm_ehci_priv), + .plat_auto = sizeof(struct usb_plat), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +}; diff --git a/drivers/usb/host/ohci-npcm.c b/drivers/usb/host/ohci-npcm.c new file mode 100644 index 0000000000..9e1d529880 --- /dev/null +++ b/drivers/usb/host/ohci-npcm.c @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2021 Nuvoton Technology Corp. + */ + +#include +#include +#include +#include +#include +#include +#include +#include "ohci.h" + +struct npcm_ohci_priv { + ohci_t ohci; + struct phy phy; +}; + +static int npcm_ohci_setup_phy(struct udevice *dev, struct phy *phy) +{ + int ret; + + if (!phy) + return 0; + + ret = generic_phy_get_by_index(dev, 0, phy); + if (ret) { + if (ret != -ENOENT) { + dev_err(dev, "failed to get usb phy\n"); + return ret; + } + } else { + ret = generic_phy_init(phy); + if (ret) { + dev_err(dev, "failed to init usb phy\n"); + return ret; + } + } + + return 0; +} + +static int npcm_ohci_init(struct udevice *dev) +{ + struct npcm_ohci_priv *priv = dev_get_priv(dev); + struct reset_ctl reset; + int ret; + + ret = reset_get_by_index(dev, 0, &reset); + if (ret && ret != -ENOENT && ret != -ENOTSUPP) { + dev_err(dev, "failed to get reset\n"); + return ret; + } + + /* reset controller */ + if (reset_valid(&reset)) + reset_assert(&reset); + + /* setup phy */ + ret = npcm_ohci_setup_phy(dev, &priv->phy); + if (ret) + return ret; + + /* release controller from reset */ + if (reset_valid(&reset)) + reset_deassert(&reset); + + return 0; +} + +static int npcm_ohci_probe(struct udevice *dev) +{ + struct ohci_regs *regs = dev_read_addr_ptr(dev); + int ret; + + ret = npcm_ohci_init(dev); + if (ret) + return ret; + + return ohci_register(dev, regs); +} + +static int npcm_ohci_remove(struct udevice *dev) +{ + struct npcm_ohci_priv *priv = dev_get_priv(dev); + + generic_phy_exit(&priv->phy); + + return ohci_deregister(dev); +} + +static const struct udevice_id npcm_ohci_ids[] = { + { .compatible = "nuvoton,npcm845-ohci" }, + { .compatible = "nuvoton,npcm750-ohci" }, + { } +}; + +U_BOOT_DRIVER(ohci_npcm) = { + .name = "ohci_npcm", + .id = UCLASS_USB, + .of_match = npcm_ohci_ids, + .probe = npcm_ohci_probe, + .remove = npcm_ohci_remove, + .ops = &ohci_usb_ops, + .priv_auto = sizeof(struct npcm_ohci_priv), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +}; -- 2.39.5