--- zzzz-none-000/linux-3.10.107/drivers/usb/host/bcma-hcd.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/drivers/usb/host/bcma-hcd.c 2021-02-04 17:41:59.000000000 +0000 @@ -2,7 +2,8 @@ * Broadcom specific Advanced Microcontroller Bus * Broadcom USB-core driver (BCMA bus glue) * - * Copyright 2011-2012 Hauke Mehrtens + * Copyright 2011-2015 Hauke Mehrtens + * Copyright 2015 Felix Fietkau * * Based on ssb-ohci driver * Copyright 2007 Michael Buesch @@ -23,6 +24,8 @@ #include #include #include +#include +#include #include #include @@ -88,7 +91,7 @@ } /* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */ -static void bcma_hcd_init_chip(struct bcma_device *dev) +static void bcma_hcd_init_chip_mips(struct bcma_device *dev) { u32 tmp; @@ -159,6 +162,87 @@ } } +static void bcma_hcd_init_chip_arm_phy(struct bcma_device *dev) +{ + struct bcma_device *arm_core; + void __iomem *dmu; + + arm_core = bcma_find_core(dev->bus, BCMA_CORE_ARMCA9); + if (!arm_core) { + dev_err(&dev->dev, "can not find ARM Cortex A9 ihost core\n"); + return; + } + + dmu = ioremap_nocache(arm_core->addr_s[0], 0x1000); + if (!dmu) { + dev_err(&dev->dev, "can not map ARM Cortex A9 ihost core\n"); + return; + } + + /* Unlock DMU PLL settings */ + iowrite32(0x0000ea68, dmu + 0x180); + + /* Write USB 2.0 PLL control setting */ + iowrite32(0x00dd10c3, dmu + 0x164); + + /* Lock DMU PLL settings */ + iowrite32(0x00000000, dmu + 0x180); + + iounmap(dmu); +} + +static void bcma_hcd_init_chip_arm_hc(struct bcma_device *dev) +{ + u32 val; + + /* + * Delay after PHY initialized to ensure HC is ready to be configured + */ + usleep_range(1000, 2000); + + /* Set packet buffer OUT threshold */ + val = bcma_read32(dev, 0x94); + val &= 0xffff; + val |= 0x80 << 16; + bcma_write32(dev, 0x94, val); + + /* Enable break memory transfer */ + val = bcma_read32(dev, 0x9c); + val |= 1; + bcma_write32(dev, 0x9c, val); +} + +static void bcma_hcd_init_chip_arm(struct bcma_device *dev) +{ + bcma_core_enable(dev, 0); + + if (dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM4707 || + dev->bus->chipinfo.id == BCMA_CHIP_ID_BCM53018) { + if (dev->bus->chipinfo.pkg == BCMA_PKG_ID_BCM4707 || + dev->bus->chipinfo.pkg == BCMA_PKG_ID_BCM4708) + bcma_hcd_init_chip_arm_phy(dev); + + bcma_hcd_init_chip_arm_hc(dev); + } +} + +static void bcma_hci_platform_power_gpio(struct bcma_device *dev, bool val) +{ + int gpio; + + gpio = of_get_named_gpio(dev->dev.of_node, "vcc-gpio", 0); + if (!gpio_is_valid(gpio)) + return; + + if (val) { + gpio_request(gpio, "bcma-hcd-gpio"); + gpio_set_value(gpio, 1); + } else { + gpio_set_value(gpio, 0); + gpio_free(gpio); + } +} + static const struct usb_ehci_pdata ehci_pdata = { }; @@ -169,7 +253,7 @@ { struct platform_device *hci_dev; struct resource hci_res[2]; - int ret = -ENOMEM; + int ret; memset(hci_res, 0, sizeof(hci_res)); @@ -183,7 +267,7 @@ hci_dev = platform_device_alloc(ohci ? "ohci-platform" : "ehci-platform" , 0); if (!hci_dev) - return NULL; + return ERR_PTR(-ENOMEM); hci_dev->dev.parent = &dev->dev; hci_dev->dev.dma_mask = &hci_dev->dev.coherent_dma_mask; @@ -214,40 +298,45 @@ static int bcma_hcd_probe(struct bcma_device *dev) { int err; - u16 chipid_top; u32 ohci_addr; struct bcma_hcd_device *usb_dev; struct bcma_chipinfo *chipinfo; chipinfo = &dev->bus->chipinfo; - /* USBcores are only connected on embedded devices. */ - chipid_top = (chipinfo->id & 0xFF00); - if (chipid_top != 0x4700 && chipid_top != 0x5300) - return -ENODEV; /* TODO: Probably need checks here; is the core connected? */ - if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) || - dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32))) + if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32))) return -EOPNOTSUPP; - usb_dev = kzalloc(sizeof(struct bcma_hcd_device), GFP_KERNEL); + usb_dev = devm_kzalloc(&dev->dev, sizeof(struct bcma_hcd_device), + GFP_KERNEL); if (!usb_dev) return -ENOMEM; - bcma_hcd_init_chip(dev); + bcma_hci_platform_power_gpio(dev, true); + + switch (dev->id.id) { + case BCMA_CORE_NS_USB20: + bcma_hcd_init_chip_arm(dev); + break; + case BCMA_CORE_USB20_HOST: + bcma_hcd_init_chip_mips(dev); + break; + default: + return -ENODEV; + } /* In AI chips EHCI is addrspace 0, OHCI is 1 */ - ohci_addr = dev->addr1; - if ((chipinfo->id == 0x5357 || chipinfo->id == 0x4749) + ohci_addr = dev->addr_s[0]; + if ((chipinfo->id == BCMA_CHIP_ID_BCM5357 || + chipinfo->id == BCMA_CHIP_ID_BCM4749) && chipinfo->rev == 0) ohci_addr = 0x18009000; usb_dev->ohci_dev = bcma_hcd_create_pdev(dev, true, ohci_addr); - if (IS_ERR(usb_dev->ohci_dev)) { - err = PTR_ERR(usb_dev->ohci_dev); - goto err_free_usb_dev; - } + if (IS_ERR(usb_dev->ohci_dev)) + return PTR_ERR(usb_dev->ohci_dev); usb_dev->ehci_dev = bcma_hcd_create_pdev(dev, false, dev->addr); if (IS_ERR(usb_dev->ehci_dev)) { @@ -260,8 +349,6 @@ err_unregister_ohci_dev: platform_device_unregister(usb_dev->ohci_dev); -err_free_usb_dev: - kfree(usb_dev); return err; } @@ -281,6 +368,7 @@ static void bcma_hcd_shutdown(struct bcma_device *dev) { + bcma_hci_platform_power_gpio(dev, false); bcma_core_disable(dev, 0); } @@ -288,6 +376,7 @@ static int bcma_hcd_suspend(struct bcma_device *dev) { + bcma_hci_platform_power_gpio(dev, false); bcma_core_disable(dev, 0); return 0; @@ -295,6 +384,7 @@ static int bcma_hcd_resume(struct bcma_device *dev) { + bcma_hci_platform_power_gpio(dev, true); bcma_core_enable(dev, 0); return 0; @@ -307,7 +397,8 @@ static const struct bcma_device_id bcma_hcd_table[] = { BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_USB20_HOST, BCMA_ANY_REV, BCMA_ANY_CLASS), - BCMA_CORETABLE_END + BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_NS_USB20, BCMA_ANY_REV, BCMA_ANY_CLASS), + {}, }; MODULE_DEVICE_TABLE(bcma, bcma_hcd_table);