Diff: source/hic_hal/freescale/k26f/usb_phy.c

Revision:

0:01f31e923fe2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/hic_hal/freescale/k26f/usb_phy.c	Tue Apr 07 12:55:42 2020 +0200
@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 2015, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "fsl_usb.h"
+#include "fsl_device_registers.h"
+
+/*!
+ * @brief ehci phy initialization.
+ *
+ * This function initialize ehci phy IP.
+ *
+ * @param[in] controllerId   ehci controller id, please reference to #usb_controller_index_t.
+ * @param[in] freq            the external input clock.
+ *                            for example: if the external input clock is 16M, the parameter freq should be 16000000.
+ *
+ * @retval kStatus_USB_Success      cancel successfully.
+ * @retval kStatus_USB_Error        the freq value is incorrect.
+ */
+uint32_t USB_EhciPhyInit(uint8_t controllerId, uint32_t freq)
+{
+#if ((defined FSL_FEATURE_SOC_USBPHY_COUNT) && (FSL_FEATURE_SOC_USBPHY_COUNT > 0U))
+    USBPHY->TRIM_OVERRIDE_EN = 0x001fU;               /* override IFR value */
+    USBPHY->CTRL &= ~USBPHY_CTRL_SFTRST_MASK;         /* release PHY from reset */
+    USBPHY->PLL_SIC |= USBPHY_PLL_SIC_PLL_POWER_MASK; /* power up PLL */
+    if (freq == 24000000U)
+    {
+        USBPHY->PLL_SIC |= USBPHY_PLL_SIC_PLL_DIV_SEL(0U);
+    }
+    else if (freq == 16000000U)
+    {
+        USBPHY->PLL_SIC |= USBPHY_PLL_SIC_PLL_DIV_SEL(1U);
+    }
+    else if (freq == 12000000U)
+    {
+        USBPHY->PLL_SIC |= USBPHY_PLL_SIC_PLL_DIV_SEL(2U);
+    }
+    else
+    {
+        return kStatus_USB_Error; /* error */
+    }
+    USBPHY->PLL_SIC &= ~USBPHY_PLL_SIC_PLL_BYPASS_MASK;     /* clear bypass bit */
+    USBPHY->PLL_SIC |= USBPHY_PLL_SIC_PLL_EN_USB_CLKS_MASK; /* enable USB clock output from USB PHY PLL */
+    USBPHY->CTRL &= ~USBPHY_CTRL_CLKGATE_MASK;              /* Clear to 0U to run clocks */
+
+    USBPHY->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK; /* support LS device. */
+    USBPHY->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL3_MASK; /* support external FS Hub with LS device connected. */
+    /* PWD register provides overall control of the PHY power state */
+    USBPHY->PWD = 0U;
+
+    while (!(USBPHY->PLL_SIC & USBPHY_PLL_SIC_PLL_LOCK_MASK))
+    {
+    }
+
+    /* Decode to trim the nominal 17.78mA current source for the High Speed TX drivers on USB_DP and USB_DM. */
+    USBPHY->TX = ((USBPHY->TX & (~USBPHY_TX_D_CAL_MASK)) | USBPHY_TX_D_CAL(0xcU));
+#endif
+
+    return kStatus_USB_Success;
+}
+
+/*!
+ * @brief ehci phy initialization for suspend and resume.
+ *
+ * This function initialize ehci phy IP for suspend and resume.
+ *
+ * @param[in] controllerId   ehci controller id, please reference to #usb_controller_index_t.
+ * @param[in] freq            the external input clock.
+ *                            for example: if the external input clock is 16M, the parameter freq should be 16000000.
+ *
+ * @retval kStatus_USB_Success      cancel successfully.
+ * @retval kStatus_USB_Error        the freq value is incorrect.
+ */
+uint32_t USB_EhciLowPowerPhyInit(uint8_t controllerId, uint32_t freq)
+{
+#if ((defined FSL_FEATURE_SOC_USBPHY_COUNT) && (FSL_FEATURE_SOC_USBPHY_COUNT > 0U))
+    USBPHY->TRIM_OVERRIDE_EN = 0x001fU;               /* override IFR value */
+    USBPHY->CTRL &= ~USBPHY_CTRL_SFTRST_MASK;         /* release PHY from reset */
+    USBPHY->PLL_SIC |= USBPHY_PLL_SIC_PLL_POWER_MASK; /* power up PLL */
+    if (freq == 24000000U)
+    {
+        USBPHY->PLL_SIC |= USBPHY_PLL_SIC_PLL_DIV_SEL(0U);
+    }
+    else if (freq == 16000000U)
+    {
+        USBPHY->PLL_SIC |= USBPHY_PLL_SIC_PLL_DIV_SEL(1U);
+    }
+    else if (freq == 12000000U)
+    {
+        USBPHY->PLL_SIC |= USBPHY_PLL_SIC_PLL_DIV_SEL(2U);
+    }
+    else
+    {
+        return kStatus_USB_Error; /* error */
+    }
+    USBPHY->PLL_SIC &= ~USBPHY_PLL_SIC_PLL_BYPASS_MASK;     /* clear bypass bit */
+    USBPHY->PLL_SIC |= USBPHY_PLL_SIC_PLL_EN_USB_CLKS_MASK; /* enable USB clock output from USB PHY PLL */
+    USBPHY->CTRL &= ~USBPHY_CTRL_CLKGATE_MASK;              /* Clear to 0U to run clocks */
+    USBPHY->CTRL |=
+        USBPHY_CTRL_AUTORESUME_EN_MASK | USBPHY_CTRL_ENAUTOCLR_CLKGATE_MASK | USBPHY_CTRL_ENAUTOCLR_PHY_PWD_MASK;
+    USBPHY->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK; /* support LS device. */
+    USBPHY->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL3_MASK; /* support external FS Hub with LS device connected. */
+    /* PWD register provides overall control of the PHY power state */
+    USBPHY->PWD = 0U;
+
+    while (!(USBPHY->PLL_SIC & USBPHY_PLL_SIC_PLL_LOCK_MASK))
+    {
+    }
+
+    /* now the 480MHz USB clock is up, then configure fractional divider after PLL with PFD
+     * pfd clock = 480MHz*18/N, where N=18~35
+     * Please note that USB1PFDCLK has to be less than 180MHz for RUN or HSRUN mode
+     */
+    USBPHY->ANACTRL |= USBPHY_ANACTRL_PFD_FRAC(24);   /* N=24 */
+    USBPHY->ANACTRL |= USBPHY_ANACTRL_PFD_CLK_SEL(4); /* div by 4 */
+
+    USBPHY->ANACTRL &= ~USBPHY_ANACTRL_DEV_PULLDOWN_MASK;
+    USBPHY->ANACTRL &= ~USBPHY_ANACTRL_PFD_CLKGATE_MASK;
+    while (!(USBPHY->ANACTRL & USBPHY_ANACTRL_PFD_STABLE_MASK))
+    {
+    }
+
+    /* Decode to trim the nominal 17.78mA current source for the High Speed TX drivers on USB_DP and USB_DM. */
+    USBPHY->TX = ((USBPHY->TX & (~USBPHY_TX_D_CAL_MASK)) | USBPHY_TX_D_CAL(0xcU));
+#endif
+
+    return kStatus_USB_Success;
+}
+
+/*!
+ * @brief ehci phy de-initialization.
+ *
+ * This function de-initialize ehci phy IP.
+ *
+ * @param[in] controllerId   ehci controller id, please reference to #usb_controller_index_t.
+ */
+void USB_EhciPhyDeinit(uint8_t controllerId)
+{
+#if ((defined FSL_FEATURE_SOC_USBPHY_COUNT) && (FSL_FEATURE_SOC_USBPHY_COUNT > 0U))
+    USBPHY->PLL_SIC &= ~USBPHY_PLL_SIC_PLL_POWER_MASK;       /* power down PLL */
+    USBPHY->PLL_SIC &= ~USBPHY_PLL_SIC_PLL_EN_USB_CLKS_MASK; /* disable USB clock output from USB PHY PLL */
+    USBPHY->CTRL |= USBPHY_CTRL_CLKGATE_MASK;                /* set to 1U to gate clocks */
+#endif
+}
+
+/*!
+ * @brief ehci phy disconnect detection enable or disable.
+ *
+ * This function enable/disable host ehci disconnect detection.
+ *
+ * @param[in] controllerId   ehci controller id, please reference to #usb_controller_index_t.
+ * @param[in] enable
+ *            1U - enable;
+ *            0U - disable;
+ */
+void USB_EhcihostPhyDisconnectDetectCmd(uint8_t controllerId, uint8_t enable)
+{
+#if ((defined FSL_FEATURE_SOC_USBPHY_COUNT) && (FSL_FEATURE_SOC_USBPHY_COUNT > 0U))
+    if (enable)
+    {
+        USBPHY->CTRL |= USBPHY_CTRL_ENHOSTDISCONDETECT_MASK;
+    }
+    else
+    {
+        USBPHY->CTRL &= (~USBPHY_CTRL_ENHOSTDISCONDETECT_MASK);
+    }
+#endif
+}