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/*
* Copyright (C) 2014 Roman Byshko
*
* Roman Byshko <rbyshko@gmail.com>
*
* Based on code from
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/clock.h>
#include <asm/arch/usbc.h>
#include <asm/io.h>
#include "ehci.h"
int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **hccr,
struct ehci_hcor **hcor)
{
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
int ahb_gate_offset, err;
err = sunxi_usbc_request_resources(index + 1);
if (err)
return err;
ahb_gate_offset = index ? AHB_GATE_OFFSET_USB_EHCI1 :
AHB_GATE_OFFSET_USB_EHCI0;
setbits_le32(&ccm->ahb_gate0, 1 << ahb_gate_offset);
#ifdef CONFIG_SUNXI_GEN_SUN6I
setbits_le32(&ccm->ahb_reset0_cfg, 1 << ahb_gate_offset);
#endif
sunxi_usbc_enable(index + 1);
sunxi_usbc_vbus_enable(index + 1);
*hccr = sunxi_usbc_get_io_base(index + 1);
*hcor = (struct ehci_hcor *)((uint32_t) *hccr
+ HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
debug("sunxi-ehci: init hccr %x and hcor %x hc_length %d\n",
(uint32_t)*hccr, (uint32_t)*hcor,
(uint32_t)HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
return 0;
}
int ehci_hcd_stop(int index)
{
struct sunxi_ccm_reg *ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
int ahb_gate_offset;
sunxi_usbc_vbus_disable(index + 1);
sunxi_usbc_disable(index + 1);
ahb_gate_offset = index ? AHB_GATE_OFFSET_USB_EHCI1 :
AHB_GATE_OFFSET_USB_EHCI0;
#ifdef CONFIG_SUNXI_GEN_SUN6I
clrbits_le32(&ccm->ahb_reset0_cfg, 1 << ahb_gate_offset);
#endif
clrbits_le32(&ccm->ahb_gate0, 1 << ahb_gate_offset);
return sunxi_usbc_free_resources(index + 1);
}
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