X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=drivers%2Fusb%2Fdwc3%2Fcore.c;h=8d418c9412bb78b6196489dee62adee7611b38f8;hb=c05ed00afb95fa5237f16962fccf5810437317bf;hp=2498f0efb1a488aee4854e51072852fde5ad8a4f;hpb=1a031d236a9eeb28ced5438242987ae6a45f3054;p=oweals%2Fu-boot.git diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 2498f0efb1..8d418c9412 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -14,9 +14,15 @@ */ #include +#include #include #include -#include +#include +#include +#include +#include +#include +#include #include #include #include @@ -284,8 +290,8 @@ static int dwc3_setup_scratch_buffers(struct dwc3 *dwc) return 0; err1: - dma_unmap_single((void *)(uintptr_t)dwc->scratch_addr, dwc->nr_scratch * - DWC3_SCRATCHBUF_SIZE, DMA_BIDIRECTIONAL); + dma_unmap_single(scratch_addr, dwc->nr_scratch * DWC3_SCRATCHBUF_SIZE, + DMA_BIDIRECTIONAL); err0: return ret; @@ -299,7 +305,7 @@ static void dwc3_free_scratch_buffers(struct dwc3 *dwc) if (!dwc->nr_scratch) return; - dma_unmap_single((void *)(uintptr_t)dwc->scratch_addr, dwc->nr_scratch * + dma_unmap_single(dwc->scratch_addr, dwc->nr_scratch * DWC3_SCRATCHBUF_SIZE, DMA_BIDIRECTIONAL); kfree(dwc->scratchbuf); } @@ -373,6 +379,9 @@ static void dwc3_phy_setup(struct dwc3 *dwc) if (dwc->dis_u3_susphy_quirk) reg &= ~DWC3_GUSB3PIPECTL_SUSPHY; + if (dwc->dis_del_phy_power_chg_quirk) + reg &= ~DWC3_GUSB3PIPECTL_DEPOCHANGE; + dwc3_writel(dwc->regs, DWC3_GUSB3PIPECTL(0), reg); mdelay(100); @@ -581,6 +590,12 @@ static int dwc3_core_init_mode(struct dwc3 *dwc) return 0; } +static void dwc3_gadget_run(struct dwc3 *dwc) +{ + dwc3_writel(dwc->regs, DWC3_DCTL, DWC3_DCTL_RUN_STOP); + mdelay(100); +} + static void dwc3_core_exit_mode(struct dwc3 *dwc) { switch (dwc->dr_mode) { @@ -598,6 +613,42 @@ static void dwc3_core_exit_mode(struct dwc3 *dwc) /* do nothing */ break; } + + /* + * switch back to peripheral mode + * This enables the phy to enter idle and then, if enabled, suspend. + */ + dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE); + dwc3_gadget_run(dwc); +} + +static void dwc3_uboot_hsphy_mode(struct dwc3_device *dwc3_dev, + struct dwc3 *dwc) +{ + enum usb_phy_interface hsphy_mode = dwc3_dev->hsphy_mode; + u32 reg; + + /* Set dwc3 usb2 phy config */ + reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0)); + + switch (hsphy_mode) { + case USBPHY_INTERFACE_MODE_UTMI: + reg &= ~(DWC3_GUSB2PHYCFG_PHYIF_MASK | + DWC3_GUSB2PHYCFG_USBTRDTIM_MASK); + reg |= DWC3_GUSB2PHYCFG_PHYIF(UTMI_PHYIF_8_BIT) | + DWC3_GUSB2PHYCFG_USBTRDTIM(USBTRDTIM_UTMI_8_BIT); + break; + case USBPHY_INTERFACE_MODE_UTMIW: + reg &= ~(DWC3_GUSB2PHYCFG_PHYIF_MASK | + DWC3_GUSB2PHYCFG_USBTRDTIM_MASK); + reg |= DWC3_GUSB2PHYCFG_PHYIF(UTMI_PHYIF_16_BIT) | + DWC3_GUSB2PHYCFG_USBTRDTIM(USBTRDTIM_UTMI_16_BIT); + break; + default: + break; + } + + dwc3_writel(dwc->regs, DWC3_GUSB2PHYCFG(0), reg); } #define DWC3_ALIGN_MASK (16 - 1) @@ -669,6 +720,7 @@ int dwc3_uboot_init(struct dwc3_device *dwc3_dev) dwc->rx_detect_poll_quirk = dwc3_dev->rx_detect_poll_quirk; dwc->dis_u3_susphy_quirk = dwc3_dev->dis_u3_susphy_quirk; dwc->dis_u2_susphy_quirk = dwc3_dev->dis_u2_susphy_quirk; + dwc->dis_del_phy_power_chg_quirk = dwc3_dev->dis_del_phy_power_chg_quirk; dwc->tx_de_emphasis_quirk = dwc3_dev->tx_de_emphasis_quirk; if (dwc3_dev->tx_de_emphasis) @@ -694,9 +746,9 @@ int dwc3_uboot_init(struct dwc3_device *dwc3_dev) return -ENOMEM; } - if (IS_ENABLED(CONFIG_USB_DWC3_HOST)) + if (!IS_ENABLED(CONFIG_USB_DWC3_GADGET)) dwc->dr_mode = USB_DR_MODE_HOST; - else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET)) + else if (!IS_ENABLED(CONFIG_USB_HOST)) dwc->dr_mode = USB_DR_MODE_PERIPHERAL; if (dwc->dr_mode == USB_DR_MODE_UNKNOWN) @@ -708,6 +760,8 @@ int dwc3_uboot_init(struct dwc3_device *dwc3_dev) goto err0; } + dwc3_uboot_hsphy_mode(dwc3_dev, dwc); + ret = dwc3_event_buffers_setup(dwc); if (ret) { dev_err(dwc->dev, "failed to setup event buffers\n"); @@ -790,91 +844,103 @@ MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("DesignWare USB3 DRD Controller Driver"); #if CONFIG_IS_ENABLED(PHY) && CONFIG_IS_ENABLED(DM_USB) -int dwc3_setup_phy(struct udevice *dev, struct phy **array, int *num_phys) +int dwc3_setup_phy(struct udevice *dev, struct phy_bulk *phys) { - int i, ret, count; - struct phy *usb_phys; - - /* Return if no phy declared */ - if (!dev_read_prop(dev, "phys", NULL)) - return 0; - count = dev_count_phandle_with_args(dev, "phys", "#phy-cells"); - if (count <= 0) - return count; - - usb_phys = devm_kcalloc(dev, count, sizeof(struct phy), - GFP_KERNEL); - if (!usb_phys) - return -ENOMEM; - - for (i = 0; i < count; i++) { - ret = generic_phy_get_by_index(dev, i, &usb_phys[i]); - if (ret && ret != -ENOENT) { - pr_err("Failed to get USB PHY%d for %s\n", - i, dev->name); - return ret; - } - } - - for (i = 0; i < count; i++) { - ret = generic_phy_init(&usb_phys[i]); - if (ret) { - pr_err("Can't init USB PHY%d for %s\n", - i, dev->name); - goto phys_init_err; - } - } - - for (i = 0; i < count; i++) { - ret = generic_phy_power_on(&usb_phys[i]); - if (ret) { - pr_err("Can't power USB PHY%d for %s\n", - i, dev->name); - goto phys_poweron_err; - } - } + int ret; - *array = usb_phys; - *num_phys = count; - return 0; + ret = generic_phy_get_bulk(dev, phys); + if (ret) + return ret; -phys_poweron_err: - for (i = count - 1; i >= 0; i--) - generic_phy_power_off(&usb_phys[i]); + ret = generic_phy_init_bulk(phys); + if (ret) + return ret; - for (i = 0; i < count; i++) - generic_phy_exit(&usb_phys[i]); + ret = generic_phy_power_on_bulk(phys); + if (ret) + generic_phy_exit_bulk(phys); return ret; +} -phys_init_err: - for (; i >= 0; i--) - generic_phy_exit(&usb_phys[i]); +int dwc3_shutdown_phy(struct udevice *dev, struct phy_bulk *phys) +{ + int ret; + ret = generic_phy_power_off_bulk(phys); + ret |= generic_phy_exit_bulk(phys); return ret; } +#endif -int dwc3_shutdown_phy(struct udevice *dev, struct phy *usb_phys, int num_phys) +#if CONFIG_IS_ENABLED(DM_USB) +void dwc3_of_parse(struct dwc3 *dwc) { - int i, ret; + const u8 *tmp; + struct udevice *dev = dwc->dev; + u8 lpm_nyet_threshold; + u8 tx_de_emphasis; + u8 hird_threshold; - for (i = 0; i < num_phys; i++) { - if (!generic_phy_valid(&usb_phys[i])) - continue; + /* default to highest possible threshold */ + lpm_nyet_threshold = 0xff; - ret = generic_phy_power_off(&usb_phys[i]); - ret |= generic_phy_exit(&usb_phys[i]); - if (ret) { - pr_err("Can't shutdown USB PHY%d for %s\n", - i, dev->name); - } - } + /* default to -3.5dB de-emphasis */ + tx_de_emphasis = 1; - return 0; + /* + * default to assert utmi_sleep_n and use maximum allowed HIRD + * threshold value of 0b1100 + */ + hird_threshold = 12; + + dwc->has_lpm_erratum = dev_read_bool(dev, + "snps,has-lpm-erratum"); + tmp = dev_read_u8_array_ptr(dev, "snps,lpm-nyet-threshold", 1); + if (tmp) + lpm_nyet_threshold = *tmp; + + dwc->is_utmi_l1_suspend = dev_read_bool(dev, + "snps,is-utmi-l1-suspend"); + tmp = dev_read_u8_array_ptr(dev, "snps,hird-threshold", 1); + if (tmp) + hird_threshold = *tmp; + + dwc->disable_scramble_quirk = dev_read_bool(dev, + "snps,disable_scramble_quirk"); + dwc->u2exit_lfps_quirk = dev_read_bool(dev, + "snps,u2exit_lfps_quirk"); + dwc->u2ss_inp3_quirk = dev_read_bool(dev, + "snps,u2ss_inp3_quirk"); + dwc->req_p1p2p3_quirk = dev_read_bool(dev, + "snps,req_p1p2p3_quirk"); + dwc->del_p1p2p3_quirk = dev_read_bool(dev, + "snps,del_p1p2p3_quirk"); + dwc->del_phy_power_chg_quirk = dev_read_bool(dev, + "snps,del_phy_power_chg_quirk"); + dwc->lfps_filter_quirk = dev_read_bool(dev, + "snps,lfps_filter_quirk"); + dwc->rx_detect_poll_quirk = dev_read_bool(dev, + "snps,rx_detect_poll_quirk"); + dwc->dis_u3_susphy_quirk = dev_read_bool(dev, + "snps,dis_u3_susphy_quirk"); + dwc->dis_u2_susphy_quirk = dev_read_bool(dev, + "snps,dis_u2_susphy_quirk"); + dwc->dis_del_phy_power_chg_quirk = dev_read_bool(dev, + "snps,dis-del-phy-power-chg-quirk"); + dwc->tx_de_emphasis_quirk = dev_read_bool(dev, + "snps,tx_de_emphasis_quirk"); + tmp = dev_read_u8_array_ptr(dev, "snps,tx_de_emphasis", 1); + if (tmp) + tx_de_emphasis = *tmp; + + dwc->lpm_nyet_threshold = lpm_nyet_threshold; + dwc->tx_de_emphasis = tx_de_emphasis; + + dwc->hird_threshold = hird_threshold + | (dwc->is_utmi_l1_suspend << 4); } -#endif -#if CONFIG_IS_ENABLED(DM_USB_GADGET) int dwc3_init(struct dwc3 *dwc) { int ret;