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USB: DM: Convert i.MX5 ehci code to driver model
This commit converts i.MX5's EHCI USB host driver to driver model (DM_USB). It is a straightforward conversion (to reuse as much code as possible), based on ehci-mx6.c code. Signed-off-by: Lukasz Majewski <lukma@denx.de>
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@ -12,6 +12,8 @@
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#include <asm/io.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/clock.h>
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#include <dm.h>
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#include <power/regulator.h>
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#include "ehci.h"
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@ -223,6 +225,7 @@ __weak void mx5_ehci_powerup_fixup(struct ehci_ctrl *ctrl, uint32_t *status_reg,
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mdelay(50);
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}
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#if !CONFIG_IS_ENABLED(DM_USB)
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static const struct ehci_ops mx5_ehci_ops = {
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.powerup_fixup = mx5_ehci_powerup_fixup,
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};
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@ -267,3 +270,103 @@ int ehci_hcd_stop(int index)
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{
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return 0;
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}
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#else /* CONFIG_IS_ENABLED(DM_USB) */
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struct ehci_mx5_priv_data {
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struct ehci_ctrl ctrl;
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struct usb_ehci *ehci;
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struct udevice *vbus_supply;
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enum usb_init_type init_type;
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int portnr;
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};
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static const struct ehci_ops mx5_ehci_ops = {
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.powerup_fixup = mx5_ehci_powerup_fixup,
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};
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static int ehci_usb_ofdata_to_platdata(struct udevice *dev)
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{
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struct usb_platdata *plat = dev_get_platdata(dev);
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const char *mode;
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mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "dr_mode", NULL);
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if (mode) {
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if (strcmp(mode, "peripheral") == 0)
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plat->init_type = USB_INIT_DEVICE;
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else if (strcmp(mode, "host") == 0)
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plat->init_type = USB_INIT_HOST;
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else
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return -EINVAL;
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}
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return 0;
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}
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static int ehci_usb_probe(struct udevice *dev)
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{
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struct usb_platdata *plat = dev_get_platdata(dev);
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struct usb_ehci *ehci = (struct usb_ehci *)devfdt_get_addr(dev);
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struct ehci_mx5_priv_data *priv = dev_get_priv(dev);
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enum usb_init_type type = plat->init_type;
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struct ehci_hccr *hccr;
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struct ehci_hcor *hcor;
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int ret;
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set_usboh3_clk();
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enable_usboh3_clk(true);
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set_usb_phy_clk();
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enable_usb_phy1_clk(true);
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enable_usb_phy2_clk(true);
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mdelay(1);
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priv->ehci = ehci;
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priv->portnr = dev->seq;
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priv->init_type = type;
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ret = device_get_supply_regulator(dev, "vbus-supply",
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&priv->vbus_supply);
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if (ret)
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debug("%s: No vbus supply\n", dev->name);
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if (!ret && priv->vbus_supply) {
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ret = regulator_set_enable(priv->vbus_supply,
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(type == USB_INIT_DEVICE) ?
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false : true);
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if (ret) {
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puts("Error enabling VBUS supply\n");
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return ret;
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}
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}
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hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
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hcor = (struct ehci_hcor *)((uint32_t)hccr +
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HC_LENGTH(ehci_readl(&(hccr)->cr_capbase)));
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setbits_le32(&ehci->usbmode, CM_HOST);
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__raw_writel(CONFIG_MXC_USB_PORTSC, &ehci->portsc);
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setbits_le32(&ehci->portsc, USB_EN);
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mxc_set_usbcontrol(priv->portnr, CONFIG_MXC_USB_FLAGS);
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mdelay(10);
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return ehci_register(dev, hccr, hcor, &mx5_ehci_ops, 0,
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priv->init_type);
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}
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static const struct udevice_id mx5_usb_ids[] = {
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{ .compatible = "fsl,imx53-usb" },
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{ }
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};
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U_BOOT_DRIVER(usb_mx5) = {
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.name = "ehci_mx5",
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.id = UCLASS_USB,
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.of_match = mx5_usb_ids,
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.ofdata_to_platdata = ehci_usb_ofdata_to_platdata,
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.probe = ehci_usb_probe,
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.remove = ehci_deregister,
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.ops = &ehci_usb_ops,
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.platdata_auto_alloc_size = sizeof(struct usb_platdata),
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.priv_auto_alloc_size = sizeof(struct ehci_mx5_priv_data),
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.flags = DM_FLAG_ALLOC_PRIV_DMA,
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};
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#endif /* !CONFIG_IS_ENABLED(DM_USB) */
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