diff options
| -rw-r--r-- | drivers/usb/host/ehci-fsl.c | 131 |
1 files changed, 127 insertions, 4 deletions
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index df3fa04..f5e3ae7 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -1,5 +1,5 @@ /* - * (C) Copyright 2009, 2011 Freescale Semiconductor, Inc. + * (C) Copyright 2009, 2011, 2016 Freescale Semiconductor, Inc. * * (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB * @@ -16,16 +16,32 @@ #include <hwconfig.h> #include <fsl_usb.h> #include <fdt_support.h> +#include <dm.h> #include "ehci.h" +DECLARE_GLOBAL_DATA_PTR; + #ifndef CONFIG_USB_MAX_CONTROLLER_COUNT #define CONFIG_USB_MAX_CONTROLLER_COUNT 1 #endif +#ifdef CONFIG_DM_USB +struct ehci_fsl_priv { + struct ehci_ctrl ehci; + fdt_addr_t hcd_base; + char *phy_type; +}; +#endif + static void set_txfifothresh(struct usb_ehci *, u32); +#ifdef CONFIG_DM_USB +static int ehci_fsl_init(struct ehci_fsl_priv *priv, struct usb_ehci *ehci, + struct ehci_hccr *hccr, struct ehci_hcor *hcor); +#else static int ehci_fsl_init(int index, struct usb_ehci *ehci, struct ehci_hccr *hccr, struct ehci_hcor *hcor); +#endif /* Check USB PHY clock valid */ static int usb_phy_clk_valid(struct usb_ehci *ehci) @@ -39,6 +55,99 @@ static int usb_phy_clk_valid(struct usb_ehci *ehci) } } +#ifdef CONFIG_DM_USB +static int ehci_fsl_ofdata_to_platdata(struct udevice *dev) +{ + struct ehci_fsl_priv *priv = dev_get_priv(dev); + const void *prop; + + prop = fdt_getprop(gd->fdt_blob, dev->of_offset, "phy_type", + NULL); + if (prop) { + priv->phy_type = (char *)prop; + debug("phy_type %s\n", priv->phy_type); + } + + return 0; +} + +static int ehci_fsl_init_after_reset(struct ehci_ctrl *ctrl) +{ + struct usb_ehci *ehci = NULL; + struct ehci_fsl_priv *priv = container_of(ctrl, struct ehci_fsl_priv, + ehci); + + ehci = (struct usb_ehci *)priv->hcd_base; + if (ehci_fsl_init(priv, ehci, priv->ehci.hccr, priv->ehci.hcor) < 0) + return -ENXIO; + + return 0; +} + +static const struct ehci_ops fsl_ehci_ops = { + .init_after_reset = ehci_fsl_init_after_reset, +}; + +static int ehci_fsl_probe(struct udevice *dev) +{ + struct ehci_fsl_priv *priv = dev_get_priv(dev); + struct usb_ehci *ehci = NULL; + struct ehci_hccr *hccr; + struct ehci_hcor *hcor; + + /* + * Get the base address for EHCI controller from the device node + */ + priv->hcd_base = dev_get_addr(dev); + if (priv->hcd_base == FDT_ADDR_T_NONE) { + debug("Can't get the EHCI register base address\n"); + return -ENXIO; + } + ehci = (struct usb_ehci *)priv->hcd_base; + hccr = (struct ehci_hccr *)(&ehci->caplength); + hcor = (struct ehci_hcor *) + ((u32)hccr + HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + + if (ehci_fsl_init(priv, ehci, hccr, hcor) < 0) + return -ENXIO; + + debug("ehci-fsl: init hccr %x and hcor %x hc_length %d\n", + (u32)hccr, (u32)hcor, + (u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase))); + + return ehci_register(dev, hccr, hcor, &fsl_ehci_ops, 0, USB_INIT_HOST); +} + +static int ehci_fsl_remove(struct udevice *dev) +{ + int ret; + + ret = ehci_deregister(dev); + if (ret) + return ret; + + return 0; +} + +static const struct udevice_id ehci_usb_ids[] = { + { .compatible = "fsl-usb2-mph", }, + { .compatible = "fsl-usb2-dr", }, + { } +}; + +U_BOOT_DRIVER(ehci_fsl) = { + .name = "ehci_fsl", + .id = UCLASS_USB, + .of_match = ehci_usb_ids, + .ofdata_to_platdata = ehci_fsl_ofdata_to_platdata, + .probe = ehci_fsl_probe, + .remove = ehci_fsl_remove, + .ops = &ehci_usb_ops, + .platdata_auto_alloc_size = sizeof(struct usb_platdata), + .priv_auto_alloc_size = sizeof(struct ehci_fsl_priv), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +}; +#else /* * Create the appropriate control structures to manage * a new EHCI host controller. @@ -77,13 +186,21 @@ int ehci_hcd_stop(int index) { return 0; } +#endif +#ifdef CONFIG_DM_USB +static int ehci_fsl_init(struct ehci_fsl_priv *priv, struct usb_ehci *ehci, + struct ehci_hccr *hccr, struct ehci_hcor *hcor) +#else static int ehci_fsl_init(int index, struct usb_ehci *ehci, struct ehci_hccr *hccr, struct ehci_hcor *hcor) +#endif { const char *phy_type = NULL; +#ifndef CONFIG_DM_USB size_t len; char current_usb_controller[5]; +#endif #ifdef CONFIG_SYS_FSL_USB_INTERNAL_UTMI_PHY char usb_phy[5]; @@ -98,9 +215,6 @@ static int ehci_fsl_init(int index, struct usb_ehci *ehci, */ mdelay(5); } - memset(current_usb_controller, '\0', 5); - snprintf(current_usb_controller, sizeof(current_usb_controller), - "usb%d", index+1); /* Set to Host mode */ setbits_le32(&ehci->usbmode, CM_HOST); @@ -109,9 +223,18 @@ static int ehci_fsl_init(int index, struct usb_ehci *ehci, out_be32(&ehci->snoop2, 0x80000000 | SNOOP_SIZE_2GB); /* Init phy */ +#ifdef CONFIG_DM_USB + if (priv->phy_type) + phy_type = priv->phy_type; +#else + memset(current_usb_controller, '\0', 5); + snprintf(current_usb_controller, sizeof(current_usb_controller), + "usb%d", index+1); + if (hwconfig_sub(current_usb_controller, "phy_type")) phy_type = hwconfig_subarg(current_usb_controller, "phy_type", &len); +#endif else phy_type = getenv("usb_phy_type"); |