diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/tgec_mii_acc.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/tgec_mii_acc.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/tgec_mii_acc.c b/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/tgec_mii_acc.c new file mode 100644 index 0000000..e0fafd1 --- /dev/null +++ b/drivers/net/ethernet/freescale/sdk_fman/Peripherals/FM/MAC/tgec_mii_acc.c @@ -0,0 +1,139 @@ +/* + * Copyright 2008-2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``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 Freescale Semiconductor 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 "error_ext.h" +#include "std_ext.h" +#include "fm_mac.h" +#include "tgec.h" +#include "xx_ext.h" + +#include "fm_common.h" + + +/*****************************************************************************/ +t_Error TGEC_MII_WritePhyReg(t_Handle h_Tgec, + uint8_t phyAddr, + uint8_t reg, + uint16_t data) +{ + t_Tgec *p_Tgec = (t_Tgec *)h_Tgec; + t_TgecMiiAccessMemMap *p_MiiAccess; + uint32_t cfgStatusReg; + + SANITY_CHECK_RETURN_ERROR(p_Tgec, E_INVALID_HANDLE); + SANITY_CHECK_RETURN_ERROR(p_Tgec->p_MiiMemMap, E_INVALID_HANDLE); + + p_MiiAccess = p_Tgec->p_MiiMemMap; + + /* Configure MII */ + cfgStatusReg = GET_UINT32(p_MiiAccess->mdio_cfg_status); + cfgStatusReg &= ~MIIMCOM_DIV_MASK; + /* (one half of fm clock => 2.5Mhz) */ + cfgStatusReg |=((((p_Tgec->fmMacControllerDriver.clkFreq*10)/2)/25) << MIIMCOM_DIV_SHIFT); + WRITE_UINT32(p_MiiAccess->mdio_cfg_status, cfgStatusReg); + + while ((GET_UINT32(p_MiiAccess->mdio_cfg_status)) & MIIMIND_BUSY) + XX_UDelay (1); + + WRITE_UINT32(p_MiiAccess->mdio_command, phyAddr); + + WRITE_UINT32(p_MiiAccess->mdio_regaddr, reg); + + CORE_MemoryBarrier(); + + while ((GET_UINT32(p_MiiAccess->mdio_cfg_status)) & MIIMIND_BUSY) + XX_UDelay (1); + + WRITE_UINT32(p_MiiAccess->mdio_data, data); + + CORE_MemoryBarrier(); + + while ((GET_UINT32(p_MiiAccess->mdio_data)) & MIIDATA_BUSY) + XX_UDelay (1); + + return E_OK; +} + +/*****************************************************************************/ +t_Error TGEC_MII_ReadPhyReg(t_Handle h_Tgec, + uint8_t phyAddr, + uint8_t reg, + uint16_t *p_Data) +{ + t_Tgec *p_Tgec = (t_Tgec *)h_Tgec; + t_TgecMiiAccessMemMap *p_MiiAccess; + uint32_t cfgStatusReg; + + SANITY_CHECK_RETURN_ERROR(p_Tgec, E_INVALID_HANDLE); + SANITY_CHECK_RETURN_ERROR(p_Tgec->p_MiiMemMap, E_INVALID_HANDLE); + + p_MiiAccess = p_Tgec->p_MiiMemMap; + + /* Configure MII */ + cfgStatusReg = GET_UINT32(p_MiiAccess->mdio_cfg_status); + cfgStatusReg &= ~MIIMCOM_DIV_MASK; + /* (one half of fm clock => 2.5Mhz) */ + cfgStatusReg |=((((p_Tgec->fmMacControllerDriver.clkFreq*10)/2)/25) << MIIMCOM_DIV_SHIFT); + WRITE_UINT32(p_MiiAccess->mdio_cfg_status, cfgStatusReg); + + while ((GET_UINT32(p_MiiAccess->mdio_cfg_status)) & MIIMIND_BUSY) + XX_UDelay (1); + + WRITE_UINT32(p_MiiAccess->mdio_command, phyAddr); + + WRITE_UINT32(p_MiiAccess->mdio_regaddr, reg); + + CORE_MemoryBarrier(); + + while ((GET_UINT32(p_MiiAccess->mdio_cfg_status)) & MIIMIND_BUSY) + XX_UDelay (1); + + WRITE_UINT32(p_MiiAccess->mdio_command, (uint32_t)(phyAddr | MIIMCOM_READ_CYCLE)); + + CORE_MemoryBarrier(); + + while ((GET_UINT32(p_MiiAccess->mdio_data)) & MIIDATA_BUSY) + XX_UDelay (1); + + *p_Data = (uint16_t)GET_UINT32(p_MiiAccess->mdio_data); + + cfgStatusReg = GET_UINT32(p_MiiAccess->mdio_cfg_status); + + if (cfgStatusReg & MIIMIND_READ_ERROR) + RETURN_ERROR(MINOR, E_INVALID_VALUE, + ("Read Error: phyAddr 0x%x, dev 0x%x, reg 0x%x, cfgStatusReg 0x%x", + ((phyAddr & 0xe0)>>5), (phyAddr & 0x1f), reg, cfgStatusReg)); + + return E_OK; +} |