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
;
41 int extra_ahb_gate_mask
= 0;
44 * This should go away once we've moved to the driver model for
47 priv
->ahb_gate_mask
= 1 << AHB_GATE_OFFSET_USB_EHCI0
;
48 #if defined(CONFIG_MACH_SUNXI_H3_H5) || defined(CONFIG_MACH_SUN50I)
49 extra_ahb_gate_mask
= 1 << AHB_GATE_OFFSET_USB_OHCI0
;
51 priv
->phy_index
= ((uintptr_t)hccr
- SUNXI_USB1_BASE
) / BASE_DIST
;
52 priv
->ahb_gate_mask
<<= priv
->phy_index
* AHB_CLK_DIST
;
53 extra_ahb_gate_mask
<<= priv
->phy_index
* AHB_CLK_DIST
;
54 priv
->phy_index
++; /* Non otg phys start at 1 */
56 setbits_le32(&ccm
->ahb_gate0
,
57 priv
->ahb_gate_mask
| extra_ahb_gate_mask
);
58 #ifdef CONFIG_SUNXI_GEN_SUN6I
59 setbits_le32(&ccm
->ahb_reset0_cfg
,
60 priv
->ahb_gate_mask
| extra_ahb_gate_mask
);
63 sunxi_usb_phy_init(priv
->phy_index
);
64 sunxi_usb_phy_power_on(priv
->phy_index
);
66 hcor
= (struct ehci_hcor
*)((uintptr_t)hccr
+
67 HC_LENGTH(ehci_readl(&hccr
->cr_capbase
)));
69 return ehci_register(dev
, hccr
, hcor
, NULL
, 0, plat
->init_type
);
72 static int ehci_usb_remove(struct udevice
*dev
)
74 struct sunxi_ccm_reg
*ccm
= (struct sunxi_ccm_reg
*)SUNXI_CCM_BASE
;
75 struct ehci_sunxi_priv
*priv
= dev_get_priv(dev
);
78 ret
= ehci_deregister(dev
);
82 sunxi_usb_phy_exit(priv
->phy_index
);
84 #ifdef CONFIG_SUNXI_GEN_SUN6I
85 clrbits_le32(&ccm
->ahb_reset0_cfg
, priv
->ahb_gate_mask
);
87 clrbits_le32(&ccm
->ahb_gate0
, priv
->ahb_gate_mask
);
92 static const struct udevice_id ehci_usb_ids
[] = {
93 { .compatible
= "allwinner,sun4i-a10-ehci", },
94 { .compatible
= "allwinner,sun5i-a13-ehci", },
95 { .compatible
= "allwinner,sun6i-a31-ehci", },
96 { .compatible
= "allwinner,sun7i-a20-ehci", },
97 { .compatible
= "allwinner,sun8i-a23-ehci", },
98 { .compatible
= "allwinner,sun8i-a83t-ehci", },
99 { .compatible
= "allwinner,sun8i-h3-ehci", },
100 { .compatible
= "allwinner,sun9i-a80-ehci", },
101 { .compatible
= "allwinner,sun50i-a64-ehci", },
105 U_BOOT_DRIVER(ehci_sunxi
) = {
106 .name
= "ehci_sunxi",
108 .of_match
= ehci_usb_ids
,
109 .probe
= ehci_usb_probe
,
110 .remove
= ehci_usb_remove
,
111 .ops
= &ehci_usb_ops
,
112 .platdata_auto_alloc_size
= sizeof(struct usb_platdata
),
113 .priv_auto_alloc_size
= sizeof(struct ehci_sunxi_priv
),
114 .flags
= DM_FLAG_ALLOC_PRIV_DMA
,