44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/*
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* Copyright (c) 2022, Artinchip Technology Co., Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <aic_core.h>
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#include <aic_hal.h>
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#include <hal_syscfg.h>
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#include "usbd_core.h"
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#include "usb_dc_aic_reg.h"
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extern irqreturn_t USBD_IRQHandler(int irq, void * data);
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uint32_t usbd_clk;
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void usb_dc_low_level_init(void)
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{
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/* set usb0 phy switch: Host/Device */
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#ifdef AIC_USING_USB0_DEVICE
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syscfg_usb_phy0_sw_host(0);
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#endif
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/* set pin-mux */
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/* enable clock */
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hal_clk_enable(CONFIG_USB_AIC_DC_PHY_CLK);
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hal_clk_enable(CONFIG_USB_AIC_DC_CLK);
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aicos_udelay(300);
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hal_reset_assert(CONFIG_USB_AIC_DC_PHY_RESET);
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hal_reset_assert(CONFIG_USB_AIC_DC_RESET);
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aicos_udelay(300);
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hal_reset_deassert(CONFIG_USB_AIC_DC_PHY_RESET);
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hal_reset_deassert(CONFIG_USB_AIC_DC_RESET);
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aicos_udelay(300);
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usbd_clk = hal_clk_get_freq(CONFIG_USB_AIC_DC_CLK);
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/* register interrupt callback */
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aicos_request_irq(CONFIG_USB_AIC_DC_IRQ_NUM, USBD_IRQHandler,
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0, "usb_device", NULL);
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aicos_irq_enable(CONFIG_USB_AIC_DC_IRQ_NUM);
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}
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