4 * Copyright (C) 2015 Hans de Goede <hdegoede@redhat.com>
5 * Copyright (C) 2014 Roman Byshko <rbyshko@gmail.com>
8 * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
10 * SPDX-License-Identifier: GPL-2.0+
14 #include <asm/arch/clock.h>
15 #include <asm/arch/usb_phy.h>
20 struct ehci_sunxi_priv {
21 struct ehci_ctrl ehci;
22 int ahb_gate_mask; /* Mask of ahb_gate0 clk gate bits for this hcd */
23 int phy_index; /* Index of the usb-phy attached to this hcd */
26 static int ehci_usb_probe(struct udevice *dev)
28 struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
29 struct usb_platdata *plat = dev_get_platdata(dev);
30 struct ehci_sunxi_priv *priv = dev_get_priv(dev);
31 struct ehci_hccr *hccr = (struct ehci_hccr *)dev_get_addr(dev);
32 struct ehci_hcor *hcor;
35 * This should go away once we've moved to the driver model for
38 if (hccr == (void *)SUNXI_USB1_BASE) {
39 priv->ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0;
42 priv->ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_EHCI1;
46 setbits_le32(&ccm->ahb_gate0, priv->ahb_gate_mask);
47 #ifdef CONFIG_SUNXI_GEN_SUN6I
48 setbits_le32(&ccm->ahb_reset0_cfg, priv->ahb_gate_mask);
51 sunxi_usb_phy_init(priv->phy_index);
52 sunxi_usb_phy_power_on(priv->phy_index);
54 hcor = (struct ehci_hcor *)((uint32_t)hccr +
55 HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
57 return ehci_register(dev, hccr, hcor, NULL, 0, plat->init_type);
60 static int ehci_usb_remove(struct udevice *dev)
62 struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
63 struct ehci_sunxi_priv *priv = dev_get_priv(dev);
66 ret = ehci_deregister(dev);
70 sunxi_usb_phy_exit(priv->phy_index);
72 #ifdef CONFIG_SUNXI_GEN_SUN6I
73 clrbits_le32(&ccm->ahb_reset0_cfg, priv->ahb_gate_mask);
75 clrbits_le32(&ccm->ahb_gate0, priv->ahb_gate_mask);
80 static const struct udevice_id ehci_usb_ids[] = {
81 { .compatible = "allwinner,sun4i-a10-ehci", },
82 { .compatible = "allwinner,sun5i-a13-ehci", },
83 { .compatible = "allwinner,sun6i-a31-ehci", },
84 { .compatible = "allwinner,sun7i-a20-ehci", },
85 { .compatible = "allwinner,sun8i-a23-ehci", },
86 { .compatible = "allwinner,sun9i-a80-ehci", },
90 U_BOOT_DRIVER(usb_ehci) = {
93 .of_match = ehci_usb_ids,
94 .probe = ehci_usb_probe,
95 .remove = ehci_usb_remove,
97 .platdata_auto_alloc_size = sizeof(struct usb_platdata),
98 .priv_auto_alloc_size = sizeof(struct ehci_sunxi_priv),
99 .flags = DM_FLAG_ALLOC_PRIV_DMA,