2 * Copyright (C) 2014 Roman Byshko
4 * Roman Byshko <rbyshko@gmail.com>
7 * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
9 * SPDX-License-Identifier: GPL-2.0+
13 #include <asm/arch/clock.h>
14 #include <asm/arch/usbc.h>
18 int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr,
19 struct ehci_hcor **hcor)
21 struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
22 int ahb_gate_offset, err;
24 err = sunxi_usbc_request_resources(index + 1);
28 ahb_gate_offset = index ? AHB_GATE_OFFSET_USB_EHCI1 :
29 AHB_GATE_OFFSET_USB_EHCI0;
30 setbits_le32(&ccm->ahb_gate0, 1 << ahb_gate_offset);
31 #ifdef CONFIG_SUNXI_GEN_SUN6I
32 setbits_le32(&ccm->ahb_reset0_cfg, 1 << ahb_gate_offset);
35 sunxi_usbc_enable(index + 1);
36 sunxi_usbc_vbus_enable(index + 1);
38 *hccr = sunxi_usbc_get_io_base(index + 1);
40 *hcor = (struct ehci_hcor *)((uint32_t) *hccr
41 + HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
43 debug("sunxi-ehci: init hccr %x and hcor %x hc_length %d\n",
44 (uint32_t)*hccr, (uint32_t)*hcor,
45 (uint32_t)HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
50 int ehci_hcd_stop(int index)
52 struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
55 sunxi_usbc_vbus_disable(index + 1);
56 sunxi_usbc_disable(index + 1);
58 ahb_gate_offset = index ? AHB_GATE_OFFSET_USB_EHCI1 :
59 AHB_GATE_OFFSET_USB_EHCI0;
60 #ifdef CONFIG_SUNXI_GEN_SUN6I
61 clrbits_le32(&ccm->ahb_reset0_cfg, 1 << ahb_gate_offset);
63 clrbits_le32(&ccm->ahb_gate0, 1 << ahb_gate_offset);
65 return sunxi_usbc_free_resources(index + 1);