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 #ifdef CONFIG_SUNXI_GEN_SUN4I
21 #define BASE_DIST 0x8000
22 #define AHB_CLK_DIST 2
24 #define BASE_DIST 0x1000
25 #define AHB_CLK_DIST 1
28 struct ehci_sunxi_priv {
29 struct ehci_ctrl ehci;
30 int ahb_gate_mask; /* Mask of ahb_gate0 clk gate bits for this hcd */
31 int phy_index; /* Index of the usb-phy attached to this hcd */
34 static int ehci_usb_probe(struct udevice *dev)
36 struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
37 struct usb_platdata *plat = dev_get_platdata(dev);
38 struct ehci_sunxi_priv *priv = dev_get_priv(dev);
39 struct ehci_hccr *hccr = (struct ehci_hccr *)dev_get_addr(dev);
40 struct ehci_hcor *hcor;
43 * This should go away once we've moved to the driver model for
46 priv->ahb_gate_mask = 1 << AHB_GATE_OFFSET_USB_EHCI0;
47 #ifdef CONFIG_MACH_SUN8I_H3
48 priv->ahb_gate_mask |= 1 << AHB_GATE_OFFSET_USB_OHCI0;
50 priv->phy_index = ((u32)hccr - SUNXI_USB1_BASE) / BASE_DIST;
51 priv->ahb_gate_mask <<= priv->phy_index * AHB_CLK_DIST;
52 priv->phy_index++; /* Non otg phys start at 1 */
54 setbits_le32(&ccm->ahb_gate0, priv->ahb_gate_mask);
55 #ifdef CONFIG_SUNXI_GEN_SUN6I
56 setbits_le32(&ccm->ahb_reset0_cfg, priv->ahb_gate_mask);
59 sunxi_usb_phy_init(priv->phy_index);
60 sunxi_usb_phy_power_on(priv->phy_index);
62 hcor = (struct ehci_hcor *)((uint32_t)hccr +
63 HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
65 return ehci_register(dev, hccr, hcor, NULL, 0, plat->init_type);
68 static int ehci_usb_remove(struct udevice *dev)
70 struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
71 struct ehci_sunxi_priv *priv = dev_get_priv(dev);
74 ret = ehci_deregister(dev);
78 sunxi_usb_phy_exit(priv->phy_index);
80 #ifdef CONFIG_SUNXI_GEN_SUN6I
81 clrbits_le32(&ccm->ahb_reset0_cfg, priv->ahb_gate_mask);
83 clrbits_le32(&ccm->ahb_gate0, priv->ahb_gate_mask);
88 static const struct udevice_id ehci_usb_ids[] = {
89 { .compatible = "allwinner,sun4i-a10-ehci", },
90 { .compatible = "allwinner,sun5i-a13-ehci", },
91 { .compatible = "allwinner,sun6i-a31-ehci", },
92 { .compatible = "allwinner,sun7i-a20-ehci", },
93 { .compatible = "allwinner,sun8i-a23-ehci", },
94 { .compatible = "allwinner,sun8i-a83t-ehci", },
95 { .compatible = "allwinner,sun8i-h3-ehci", },
96 { .compatible = "allwinner,sun9i-a80-ehci", },
100 U_BOOT_DRIVER(ehci_sunxi) = {
101 .name = "ehci_sunxi",
103 .of_match = ehci_usb_ids,
104 .probe = ehci_usb_probe,
105 .remove = ehci_usb_remove,
106 .ops = &ehci_usb_ops,
107 .platdata_auto_alloc_size = sizeof(struct usb_platdata),
108 .priv_auto_alloc_size = sizeof(struct ehci_sunxi_priv),
109 .flags = DM_FLAG_ALLOC_PRIV_DMA,