44 lines
846 B
C
44 lines
846 B
C
/*
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* (C) Copyright 2012
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* Atmel Semiconductor <www.atmel.com>
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* Written-by: Bo Shen <voice.shen@atmel.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <usb.h>
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#include <asm/io.h>
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#include <asm/arch/clk.h>
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#include "ehci.h"
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int ehci_hcd_init(int index, enum usb_init_type init,
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struct ehci_hccr **hccr, struct ehci_hcor **hcor)
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{
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/* Enable UTMI PLL */
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if (at91_upll_clk_enable())
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return -1;
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/* Enable USB Host clock */
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at91_periph_clk_enable(ATMEL_ID_UHPHS);
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*hccr = (struct ehci_hccr *)ATMEL_BASE_EHCI;
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*hcor = (struct ehci_hcor *)((uint32_t)*hccr +
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HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
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return 0;
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}
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int ehci_hcd_stop(int index)
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{
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/* Disable USB Host Clock */
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at91_periph_clk_disable(ATMEL_ID_UHPHS);
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/* Disable UTMI PLL */
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if (at91_upll_clk_disable())
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return -1;
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return 0;
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}
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