diff options
author | Felix Fietkau <nbd@openwrt.org> | 2010-06-26 20:42:58 +0000 |
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committer | Felix Fietkau <nbd@openwrt.org> | 2010-06-26 20:42:58 +0000 |
commit | da1bb88a2b900f0392b731ec47c5e1bff956fd8f (patch) | |
tree | 597146471e3eeafb4ba55e802e80b896770808ff /target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi | |
parent | 6117c04c9416b295347fb45c37e430f01df1d0d9 (diff) | |
download | upstream-da1bb88a2b900f0392b731ec47c5e1bff956fd8f.tar.gz upstream-da1bb88a2b900f0392b731ec47c5e1bff956fd8f.tar.bz2 upstream-da1bb88a2b900f0392b731ec47c5e1bff956fd8f.zip |
rename target/linux/generic-2.6 to generic
SVN-Revision: 21952
Diffstat (limited to 'target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi')
5 files changed, 1099 insertions, 0 deletions
diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpi.c b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpi.c new file mode 100644 index 0000000000..39e0b720d1 --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpi.c @@ -0,0 +1,576 @@ +/******************************************************************************* +Copyright (C) Marvell International Ltd. and its affiliates + +This software file (the "File") is owned and distributed by Marvell +International Ltd. and/or its affiliates ("Marvell") under the following +alternative licensing terms. Once you have made an election to distribute the +File under one of the following license alternatives, please (i) delete this +introductory statement regarding license alternatives, (ii) delete the two +license alternatives that you have not elected to use and (iii) preserve the +Marvell copyright notice above. + +******************************************************************************** +Marvell Commercial License Option + +If you received this File from Marvell and you have entered into a commercial +license agreement (a "Commercial License") with Marvell, the File is licensed +to you under the terms of the applicable Commercial License. + +******************************************************************************** +Marvell GPL License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File in accordance with the terms and conditions of the General +Public License Version 2, June 1991 (the "GPL License"), a copy of which is +available along with the File in the license.txt file or by writing to the Free +Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or +on the worldwide web at http://www.gnu.org/licenses/gpl.txt. + +THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED +WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY +DISCLAIMED. The GPL License provides additional details about this warranty +disclaimer. +******************************************************************************** +Marvell BSD License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File under the following licensing terms. +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 Marvell 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 OWNER 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 "spi/mvSpi.h" +#include "spi/mvSpiSpec.h" + +#include "ctrlEnv/mvCtrlEnvLib.h" + +/* #define MV_DEBUG */ +#ifdef MV_DEBUG +#define DB(x) x +#define mvOsPrintf printf +#else +#define DB(x) +#endif + + +/******************************************************************************* +* mvSpi16bitDataTxRx - Transmt and receive data +* +* DESCRIPTION: +* Tx data and block waiting for data to be transmitted +* +********************************************************************************/ +static MV_STATUS mvSpi16bitDataTxRx (MV_U16 txData, MV_U16 * pRxData) +{ + MV_U32 i; + MV_BOOL ready = MV_FALSE; + + /* First clear the bit in the interrupt cause register */ + MV_REG_WRITE(MV_SPI_INT_CAUSE_REG, 0x0); + + /* Transmit data */ + MV_REG_WRITE(MV_SPI_DATA_OUT_REG, MV_16BIT_LE(txData)); + + /* wait with timeout for memory ready */ + for (i=0; i<MV_SPI_WAIT_RDY_MAX_LOOP; i++) + { + if (MV_REG_READ(MV_SPI_INT_CAUSE_REG)) + { + ready = MV_TRUE; + break; + } +#ifdef MV_SPI_SLEEP_ON_WAIT + mvOsSleep(1); +#endif /* MV_SPI_SLEEP_ON_WAIT */ + } + + if (!ready) + return MV_TIMEOUT; + + /* check that the RX data is needed */ + if (pRxData) + { + if ((MV_U32)pRxData & 0x1) /* check if address is not alligned to 16bit */ + { +#if defined(MV_CPU_LE) + /* perform the data write to the buffer in two stages with 8bit each */ + MV_U8 * bptr = (MV_U8*)pRxData; + MV_U16 data = MV_16BIT_LE(MV_REG_READ(MV_SPI_DATA_IN_REG)); + *bptr = (data & 0xFF); + ++bptr; + *bptr = ((data >> 8) & 0xFF); + +#elif defined(MV_CPU_BE) + + /* perform the data write to the buffer in two stages with 8bit each */ + MV_U8 * bptr = (MV_U8 *)pRxData; + MV_U16 data = MV_16BIT_LE(MV_REG_READ(MV_SPI_DATA_IN_REG)); + *bptr = ((data >> 8) & 0xFF); + ++bptr; + *bptr = (data & 0xFF); + +#else + #error "CPU endianess isn't defined!\n" +#endif + + } + else + *pRxData = MV_16BIT_LE(MV_REG_READ(MV_SPI_DATA_IN_REG)); + } + + return MV_OK; +} + + +/******************************************************************************* +* mvSpi8bitDataTxRx - Transmt and receive data (8bits) +* +* DESCRIPTION: +* Tx data and block waiting for data to be transmitted +* +********************************************************************************/ +static MV_STATUS mvSpi8bitDataTxRx (MV_U8 txData, MV_U8 * pRxData) +{ + MV_U32 i; + MV_BOOL ready = MV_FALSE; + + /* First clear the bit in the interrupt cause register */ + MV_REG_WRITE(MV_SPI_INT_CAUSE_REG, 0x0); + + /* Transmit data */ + MV_REG_WRITE(MV_SPI_DATA_OUT_REG, txData); + + /* wait with timeout for memory ready */ + for (i=0; i<MV_SPI_WAIT_RDY_MAX_LOOP; i++) + { + if (MV_REG_READ(MV_SPI_INT_CAUSE_REG)) + { + ready = MV_TRUE; + break; + } +#ifdef MV_SPI_SLEEP_ON_WAIT + mvOsSleep(1); +#endif /* MV_SPI_SLEEP_ON_WAIT */ + } + + if (!ready) + return MV_TIMEOUT; + + /* check that the RX data is needed */ + if (pRxData) + *pRxData = MV_REG_READ(MV_SPI_DATA_IN_REG); + + return MV_OK; +} + +/* +##################################################################################### +##################################################################################### +*/ + +/******************************************************************************* +* mvSpiInit - Initialize the SPI controller +* +* DESCRIPTION: +* Perform the neccessary initialization in order to be able to send an +* receive over the SPI interface. +* +* INPUT: +* serialBaudRate: Baud rate (SPI clock frequency) +* use16BitMode: Whether to use 2bytes (MV_TRUE) or 1bytes (MV_FALSE) +* +* OUTPUT: +* None. +* +* RETURN: +* Success or Error code. +* +* +*******************************************************************************/ +MV_STATUS mvSpiInit (MV_U32 serialBaudRate) +{ + MV_STATUS ret; + + /* Set the serial clock */ + if ((ret = mvSpiBaudRateSet(serialBaudRate)) != MV_OK) + return ret; + + /* For devices in which the SPI is muxed on the MPP with other interfaces*/ + mvMPPConfigToSPI(); + + /* Configure the default SPI mode to be 16bit */ + MV_REG_BIT_SET(MV_SPI_IF_CONFIG_REG, MV_SPI_BYTE_LENGTH_MASK); + + /* Fix ac timing on SPI in 6183, 6183L and 78x00 only */ + if ( (mvCtrlModelGet() == MV_6183_DEV_ID) || + (mvCtrlModelGet() == MV_6183L_DEV_ID) || + (mvCtrlModelGet() == MV_78100_DEV_ID) || + (mvCtrlModelGet() == MV_78200_DEV_ID) || + (mvCtrlModelGet() == MV_76100_DEV_ID)) + MV_REG_BIT_SET(MV_SPI_IF_CONFIG_REG, BIT14); + + /* Verify that the CS is deasserted */ + mvSpiCsDeassert(); + + return MV_OK; +} + +/******************************************************************************* +* mvSpiBaudRateSet - Set the Frequency of the SPI clock +* +* DESCRIPTION: +* Set the Prescale bits to adapt to the requested baud rate (the clock +* used for thr SPI). +* +* INPUT: +* serialBaudRate: Baud rate (SPI clock frequency) +* +* OUTPUT: +* None. +* +* RETURN: +* Success or Error code. +* +* +*******************************************************************************/ +MV_STATUS mvSpiBaudRateSet (MV_U32 serialBaudRate) +{ + MV_U8 i; + /* MV_U8 preScale[32] = {1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 2, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30}; + */ + MV_U8 preScale[14] = { 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30}; + MV_U8 bestPrescaleIndx = 100; + MV_U32 minBaudOffset = 0xFFFFFFFF; + MV_U32 cpuClk = mvBoardTclkGet(); /*mvCpuPclkGet();*/ + MV_U32 tempReg; + + /* Find the best prescale configuration - less or equal */ + for (i=0; i<14; i++) + { + /* check for higher - irrelevent */ + if ((cpuClk / preScale[i]) > serialBaudRate) + continue; + + /* check for exact fit */ + if ((cpuClk / preScale[i]) == serialBaudRate) + { + bestPrescaleIndx = i; + break; + } + + /* check if this is better than the previous one */ + if ((serialBaudRate - (cpuClk / preScale[i])) < minBaudOffset) + { + minBaudOffset = (serialBaudRate - (cpuClk / preScale[i])); + bestPrescaleIndx = i; + } + } + + if (bestPrescaleIndx > 14) + { + mvOsPrintf("%s ERROR: SPI baud rate prescale error!\n", __FUNCTION__); + return MV_OUT_OF_RANGE; + } + + /* configure the Prescale */ + tempReg = MV_REG_READ(MV_SPI_IF_CONFIG_REG); + tempReg = ((tempReg & ~MV_SPI_CLK_PRESCALE_MASK) | (bestPrescaleIndx + 0x12)); + MV_REG_WRITE(MV_SPI_IF_CONFIG_REG, tempReg); + + return MV_OK; +} + +/******************************************************************************* +* mvSpiCsAssert - Assert the Chip Select pin indicating a new transfer +* +* DESCRIPTION: +* Assert The chip select - used to select an external SPI device +* +* INPUT: +* None. +* +* OUTPUT: +* None. +* +* RETURN: +* Success or Error code. +* +********************************************************************************/ +MV_VOID mvSpiCsAssert(MV_VOID) +{ + /* For devices in which the SPI is muxed on the MPP with other interfaces*/ + mvMPPConfigToSPI(); + mvOsUDelay(1); + MV_REG_BIT_SET(MV_SPI_IF_CTRL_REG, MV_SPI_CS_ENABLE_MASK); +} + +/******************************************************************************* +* mvSpiCsDeassert - DeAssert the Chip Select pin indicating the end of a +* SPI transfer sequence +* +* DESCRIPTION: +* DeAssert the chip select pin +* +* INPUT: +* None. +* +* OUTPUT: +* None. +* +* RETURN: +* Success or Error code. +* +********************************************************************************/ +MV_VOID mvSpiCsDeassert(MV_VOID) +{ + MV_REG_BIT_RESET(MV_SPI_IF_CTRL_REG, MV_SPI_CS_ENABLE_MASK); + + /* For devices in which the SPI is muxed on the MPP with other interfaces*/ + mvMPPConfigToDefault(); +} + +/******************************************************************************* +* mvSpiRead - Read a buffer over the SPI interface +* +* DESCRIPTION: +* Receive (read) a buffer over the SPI interface in 16bit chunks. If the +* buffer size is odd, then the last chunk will be 8bits. Chip select is not +* handled at this level. +* +* INPUT: +* pRxBuff: Pointer to the buffer to hold the received data +* buffSize: length of the pRxBuff +* +* OUTPUT: +* pRxBuff: Pointer to the buffer with the received data +* +* RETURN: +* Success or Error code. +* +* +*******************************************************************************/ +MV_STATUS mvSpiRead (MV_U8* pRxBuff, MV_U32 buffSize) +{ + MV_STATUS ret; + MV_U32 bytesLeft = buffSize; + MV_U16* rxPtr = (MV_U16*)pRxBuff; + + /* check for null parameters */ + if (pRxBuff == NULL) + { + mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__); + return MV_BAD_PARAM; + } + + /* Check that the buffer pointer and the buffer size are 16bit aligned */ + if ((((MV_U32)buffSize & 1) == 0) && (((MV_U32)pRxBuff & 1) == 0)) + { + /* Verify that the SPI mode is in 16bit mode */ + MV_REG_BIT_SET(MV_SPI_IF_CONFIG_REG, MV_SPI_BYTE_LENGTH_MASK); + + /* TX/RX as long we have complete 16bit chunks */ + while (bytesLeft >= MV_SPI_16_BIT_CHUNK_SIZE) + { + /* Transmitted and wait for the transfer to be completed */ + if ((ret = mvSpi16bitDataTxRx(MV_SPI_DUMMY_WRITE_16BITS, rxPtr)) != MV_OK) + return ret; + + /* increment the pointers */ + rxPtr++; + bytesLeft -= MV_SPI_16_BIT_CHUNK_SIZE; + } + + } + else + { + /* Verify that the SPI mode is in 8bit mode */ + MV_REG_BIT_RESET(MV_SPI_IF_CONFIG_REG, MV_SPI_BYTE_LENGTH_MASK); + + /* TX/RX in 8bit chanks */ + while (bytesLeft > 0) + { + /* Transmitted and wait for the transfer to be completed */ + if ((ret = mvSpi8bitDataTxRx(MV_SPI_DUMMY_WRITE_8BITS, pRxBuff)) != MV_OK) + return ret; + /* increment the pointers */ + pRxBuff++; + bytesLeft--; + } + } + + return MV_OK; +} + +/******************************************************************************* +* mvSpiWrite - Transmit a buffer over the SPI interface +* +* DESCRIPTION: +* Transmit a buffer over the SPI interface in 16bit chunks. If the +* buffer size is odd, then the last chunk will be 8bits. No chip select +* action is taken. +* +* INPUT: +* pTxBuff: Pointer to the buffer holding the TX data +* buffSize: length of the pTxBuff +* +* OUTPUT: +* None. +* +* RETURN: +* Success or Error code. +* +* +*******************************************************************************/ +MV_STATUS mvSpiWrite(MV_U8* pTxBuff, MV_U32 buffSize) +{ + MV_STATUS ret; + MV_U32 bytesLeft = buffSize; + MV_U16* txPtr = (MV_U16*)pTxBuff; + + /* check for null parameters */ + if (pTxBuff == NULL) + { + mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__); + return MV_BAD_PARAM; + } + + /* Check that the buffer pointer and the buffer size are 16bit aligned */ + if ((((MV_U32)buffSize & 1) == 0) && (((MV_U32)pTxBuff & 1) == 0)) + { + /* Verify that the SPI mode is in 16bit mode */ + MV_REG_BIT_SET(MV_SPI_IF_CONFIG_REG, MV_SPI_BYTE_LENGTH_MASK); + + /* TX/RX as long we have complete 16bit chunks */ + while (bytesLeft >= MV_SPI_16_BIT_CHUNK_SIZE) + { + /* Transmitted and wait for the transfer to be completed */ + if ((ret = mvSpi16bitDataTxRx(*txPtr, NULL)) != MV_OK) + return ret; + + /* increment the pointers */ + txPtr++; + bytesLeft -= MV_SPI_16_BIT_CHUNK_SIZE; + } + } + else + { + + /* Verify that the SPI mode is in 8bit mode */ + MV_REG_BIT_RESET(MV_SPI_IF_CONFIG_REG, MV_SPI_BYTE_LENGTH_MASK); + + /* TX/RX in 8bit chanks */ + while (bytesLeft > 0) + { + /* Transmitted and wait for the transfer to be completed */ + if ((ret = mvSpi8bitDataTxRx(*pTxBuff, NULL)) != MV_OK) + return ret; + + /* increment the pointers */ + pTxBuff++; + bytesLeft--; + } + } + + return MV_OK; +} + + +/******************************************************************************* +* mvSpiReadWrite - Read and Write a buffer simultanuosely +* +* DESCRIPTION: +* Transmit and receive a buffer over the SPI in 16bit chunks. If the +* buffer size is odd, then the last chunk will be 8bits. The SPI chip +* select is not handled implicitely. +* +* INPUT: +* pRxBuff: Pointer to the buffer to write the RX info in +* pTxBuff: Pointer to the buffer holding the TX info +* buffSize: length of both the pTxBuff and pRxBuff +* +* OUTPUT: +* pRxBuff: Pointer of the buffer holding the RX data +* +* RETURN: +* Success or Error code. +* +* +*******************************************************************************/ +MV_STATUS mvSpiReadWrite(MV_U8* pRxBuff, MV_U8* pTxBuff, MV_U32 buffSize) +{ + MV_STATUS ret; + MV_U32 bytesLeft = buffSize; + MV_U16* txPtr = (MV_U16*)pTxBuff; + MV_U16* rxPtr = (MV_U16*)pRxBuff; + + /* check for null parameters */ + if ((pRxBuff == NULL) || (pTxBuff == NULL)) + { + mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__); + return MV_BAD_PARAM; + } + + /* Check that the buffer pointer and the buffer size are 16bit aligned */ + if ((((MV_U32)buffSize & 1) == 0) && (((MV_U32)pTxBuff & 1) == 0) && (((MV_U32)pRxBuff & 1) == 0)) + { + /* Verify that the SPI mode is in 16bit mode */ + MV_REG_BIT_SET(MV_SPI_IF_CONFIG_REG, MV_SPI_BYTE_LENGTH_MASK); + + /* TX/RX as long we have complete 16bit chunks */ + while (bytesLeft >= MV_SPI_16_BIT_CHUNK_SIZE) + { + /* Transmitted and wait for the transfer to be completed */ + if ((ret = mvSpi16bitDataTxRx(*txPtr, rxPtr)) != MV_OK) + return ret; + + /* increment the pointers */ + txPtr++; + rxPtr++; + bytesLeft -= MV_SPI_16_BIT_CHUNK_SIZE; + } + } + else + { + /* Verify that the SPI mode is in 8bit mode */ + MV_REG_BIT_RESET(MV_SPI_IF_CONFIG_REG, MV_SPI_BYTE_LENGTH_MASK); + + /* TX/RX in 8bit chanks */ + while (bytesLeft > 0) + { + /* Transmitted and wait for the transfer to be completed */ + if ( (ret = mvSpi8bitDataTxRx(*pTxBuff, pRxBuff) ) != MV_OK) + return ret; + pRxBuff++; + pTxBuff++; + bytesLeft--; + } + } + + return MV_OK; +} + + diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpi.h b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpi.h new file mode 100644 index 0000000000..74859f03e7 --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpi.h @@ -0,0 +1,94 @@ +/******************************************************************************* +Copyright (C) Marvell International Ltd. and its affiliates + +This software file (the "File") is owned and distributed by Marvell +International Ltd. and/or its affiliates ("Marvell") under the following +alternative licensing terms. Once you have made an election to distribute the +File under one of the following license alternatives, please (i) delete this +introductory statement regarding license alternatives, (ii) delete the two +license alternatives that you have not elected to use and (iii) preserve the +Marvell copyright notice above. + +******************************************************************************** +Marvell Commercial License Option + +If you received this File from Marvell and you have entered into a commercial +license agreement (a "Commercial License") with Marvell, the File is licensed +to you under the terms of the applicable Commercial License. + +******************************************************************************** +Marvell GPL License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File in accordance with the terms and conditions of the General +Public License Version 2, June 1991 (the "GPL License"), a copy of which is +available along with the File in the license.txt file or by writing to the Free +Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or +on the worldwide web at http://www.gnu.org/licenses/gpl.txt. + +THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED +WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY +DISCLAIMED. The GPL License provides additional details about this warranty +disclaimer. +******************************************************************************** +Marvell BSD License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File under the following licensing terms. +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 Marvell 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 OWNER 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. + +*******************************************************************************/ + +#ifndef __INCmvSpihH +#define __INCmvSpihH + +#include "mvCommon.h" +#include "mvOs.h" +#include "ctrlEnv/mvCtrlEnvSpec.h" + +/* Function Prototypes */ +/* Init */ +MV_STATUS mvSpiInit (MV_U32 serialBaudRate); + +/* Set the Frequency of the Spi clock */ +MV_STATUS mvSpiBaudRateSet(MV_U32 serialBaudRate); + +/* Assert the SPI chip select */ +MV_VOID mvSpiCsAssert (MV_VOID); + +/* De-assert the SPI chip select */ +MV_VOID mvSpiCsDeassert (MV_VOID); + +/* Simultanuous Read and write */ +MV_STATUS mvSpiReadWrite (MV_U8* pRxBuff, MV_U8* pTxBuff, MV_U32 buffSize); + +/* serialize a buffer on the TX line - Rx is ignored */ +MV_STATUS mvSpiWrite (MV_U8* pTxBuff, MV_U32 buffSize); + +/* read from the RX line by writing dummy values to the TX line */ +MV_STATUS mvSpiRead (MV_U8* pRxBuff, MV_U32 buffSize); + +#endif /* __INCmvSpihH */ diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpiCmnd.c b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpiCmnd.c new file mode 100644 index 0000000000..a5d5a6478b --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpiCmnd.c @@ -0,0 +1,249 @@ +/******************************************************************************* +Copyright (C) Marvell International Ltd. and its affiliates + +This software file (the "File") is owned and distributed by Marvell +International Ltd. and/or its affiliates ("Marvell") under the following +alternative licensing terms. Once you have made an election to distribute the +File under one of the following license alternatives, please (i) delete this +introductory statement regarding license alternatives, (ii) delete the two +license alternatives that you have not elected to use and (iii) preserve the +Marvell copyright notice above. + +******************************************************************************** +Marvell Commercial License Option + +If you received this File from Marvell and you have entered into a commercial +license agreement (a "Commercial License") with Marvell, the File is licensed +to you under the terms of the applicable Commercial License. + +******************************************************************************** +Marvell GPL License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File in accordance with the terms and conditions of the General +Public License Version 2, June 1991 (the "GPL License"), a copy of which is +available along with the File in the license.txt file or by writing to the Free +Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or +on the worldwide web at http://www.gnu.org/licenses/gpl.txt. + +THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED +WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY +DISCLAIMED. The GPL License provides additional details about this warranty +disclaimer. +******************************************************************************** +Marvell BSD License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File under the following licensing terms. +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 Marvell 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 OWNER 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 "spi/mvSpi.h" +#include "spi/mvSpiSpec.h" + +/*#define MV_DEBUG*/ +#ifdef MV_DEBUG +#define DB(x) x +#else +#define DB(x) +#endif + + +/******************************************************************************* +* mvSpiReadAndWrite - Read and Write a buffer simultanuousely +* +* DESCRIPTION: +* Transmit and receive a buffer over the SPI in 16bit chunks. If the +* buffer size is odd, then the last chunk will be 8bits. +* +* INPUT: +* pRxBuff: Pointer to the buffer to write the RX info in +* pTxBuff: Pointer to the buffer holding the TX info +* buffSize: length of both the pTxBuff and pRxBuff +* +* OUTPUT: +* pRxBuff: Pointer of the buffer holding the RX data +* +* RETURN: +* Success or Error code. +* +* +*******************************************************************************/ +MV_STATUS mvSpiReadAndWrite(MV_U8* pRxBuff, MV_U8* pTxBuff, MV_U32 buffSize) +{ + MV_STATUS ret; + + /* check for null parameters */ + if ((pRxBuff == NULL) || (pTxBuff == NULL) || (buffSize == 0)) + { + mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__); + return MV_BAD_PARAM; + } + + /* First assert the chip select */ + mvSpiCsAssert(); + + ret = mvSpiReadWrite(pRxBuff, pTxBuff, buffSize); + + /* Finally deassert the chip select */ + mvSpiCsDeassert(); + + return ret; +} + +/******************************************************************************* +* mvSpiWriteThenWrite - Serialize a command followed by the data over the TX line +* +* DESCRIPTION: +* Assert the chip select line. Transmit the command buffer followed by +* the data buffer. Then deassert the CS line. +* +* INPUT: +* pCmndBuff: Pointer to the command buffer to transmit +* cmndSize: length of the command size +* pTxDataBuff: Pointer to the data buffer to transmit +* txDataSize: length of the data buffer +* +* OUTPUT: +* None. +* +* RETURN: +* Success or Error code. +* +* +*******************************************************************************/ +MV_STATUS mvSpiWriteThenWrite (MV_U8* pCmndBuff, MV_U32 cmndSize, MV_U8* pTxDataBuff, + MV_U32 txDataSize) +{ + MV_STATUS ret = MV_OK, tempRet; + + /* check for null parameters */ +#ifndef CONFIG_MARVELL + if(NULL == pTxDataBuff) + { + mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__); + return MV_BAD_PARAM; + } +#endif + + if (pCmndBuff == NULL) + { + mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__); + return MV_BAD_PARAM; + } + + /* First assert the chip select */ + mvSpiCsAssert(); + + /* first write the command */ + if ((cmndSize) && (pCmndBuff != NULL)) + { + if ((tempRet = mvSpiWrite(pCmndBuff, cmndSize)) != MV_OK) + ret = tempRet; + } + + /* Then write the data buffer */ +#ifndef CONFIG_MARVELL + if (txDataSize) +#else + if ((txDataSize) && (pTxDataBuff != NULL)) +#endif + { + if ((tempRet = mvSpiWrite(pTxDataBuff, txDataSize)) != MV_OK) + ret = tempRet; + } + + /* Finally deassert the chip select */ + mvSpiCsDeassert(); + + return ret; +} + +/******************************************************************************* +* mvSpiWriteThenRead - Serialize a command then read a data buffer +* +* DESCRIPTION: +* Assert the chip select line. Transmit the command buffer then read +* the data buffer. Then deassert the CS line. +* +* INPUT: +* pCmndBuff: Pointer to the command buffer to transmit +* cmndSize: length of the command size +* pRxDataBuff: Pointer to the buffer to read the data in +* txDataSize: length of the data buffer +* +* OUTPUT: +* pRxDataBuff: Pointer to the buffer holding the data +* +* RETURN: +* Success or Error code. +* +* +*******************************************************************************/ +MV_STATUS mvSpiWriteThenRead (MV_U8* pCmndBuff, MV_U32 cmndSize, MV_U8* pRxDataBuff, + MV_U32 rxDataSize,MV_U32 dummyBytesToRead) +{ + MV_STATUS ret = MV_OK, tempRet; + MV_U8 dummyByte; + + /* check for null parameters */ + if ((pCmndBuff == NULL) && (pRxDataBuff == NULL)) + { + mvOsPrintf("%s ERROR: Null pointer parameter!\n", __FUNCTION__); + return MV_BAD_PARAM; + } + + /* First assert the chip select */ + mvSpiCsAssert(); + + /* first write the command */ + if ((cmndSize) && (pCmndBuff != NULL)) + { + if ((tempRet = mvSpiWrite(pCmndBuff, cmndSize)) != MV_OK) + ret = tempRet; + } + + /* Read dummy bytes before real data. */ + while(dummyBytesToRead) + { + mvSpiRead(&dummyByte,1); + dummyBytesToRead--; + } + + /* Then write the data buffer */ + if ((rxDataSize) && (pRxDataBuff != NULL)) + { + if ((tempRet = mvSpiRead(pRxDataBuff, rxDataSize)) != MV_OK) + ret = tempRet; + } + + /* Finally deassert the chip select */ + mvSpiCsDeassert(); + + return ret; +} + diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpiCmnd.h b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpiCmnd.h new file mode 100644 index 0000000000..329e26b7c0 --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpiCmnd.h @@ -0,0 +1,82 @@ +/******************************************************************************* +Copyright (C) Marvell International Ltd. and its affiliates + +This software file (the "File") is owned and distributed by Marvell +International Ltd. and/or its affiliates ("Marvell") under the following +alternative licensing terms. Once you have made an election to distribute the +File under one of the following license alternatives, please (i) delete this +introductory statement regarding license alternatives, (ii) delete the two +license alternatives that you have not elected to use and (iii) preserve the +Marvell copyright notice above. + +******************************************************************************** +Marvell Commercial License Option + +If you received this File from Marvell and you have entered into a commercial +license agreement (a "Commercial License") with Marvell, the File is licensed +to you under the terms of the applicable Commercial License. + +******************************************************************************** +Marvell GPL License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File in accordance with the terms and conditions of the General +Public License Version 2, June 1991 (the "GPL License"), a copy of which is +available along with the File in the license.txt file or by writing to the Free +Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or +on the worldwide web at http://www.gnu.org/licenses/gpl.txt. + +THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED +WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY +DISCLAIMED. The GPL License provides additional details about this warranty +disclaimer. +******************************************************************************** +Marvell BSD License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File under the following licensing terms. +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 Marvell 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 OWNER 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. + +*******************************************************************************/ + +#ifndef __INCmvSpiCmndhH +#define __INCmvSpiCmndhH + +#include "mvTypes.h" + +/* Function Prototypes */ + +/* Simultanuous Read and write */ +MV_STATUS mvSpiReadAndWrite (MV_U8* pRxBuff, MV_U8* pTxBuff, MV_U32 buffSize); + +/* write command - write a command and then write data */ +MV_STATUS mvSpiWriteThenWrite (MV_U8* pCmndBuff, MV_U32 cmndSize, MV_U8* pTxDataBuff, MV_U32 txDataSize); + +/* read command - write a command and then read data by writing dummy data */ +MV_STATUS mvSpiWriteThenRead (MV_U8* pCmndBuff, MV_U32 cmndSize, MV_U8* pRxDataBuff, + MV_U32 rxDataSize,MV_U32 dummyBytesToRead); + +#endif /* __INCmvSpiCmndhH */ diff --git a/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpiSpec.h b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpiSpec.h new file mode 100644 index 0000000000..658159abbb --- /dev/null +++ b/target/linux/generic/files/crypto/ocf/kirkwood/mvHal/mv_hal/spi/mvSpiSpec.h @@ -0,0 +1,98 @@ +/******************************************************************************* +Copyright (C) Marvell International Ltd. and its affiliates + +This software file (the "File") is owned and distributed by Marvell +International Ltd. and/or its affiliates ("Marvell") under the following +alternative licensing terms. Once you have made an election to distribute the +File under one of the following license alternatives, please (i) delete this +introductory statement regarding license alternatives, (ii) delete the two +license alternatives that you have not elected to use and (iii) preserve the +Marvell copyright notice above. + +******************************************************************************** +Marvell Commercial License Option + +If you received this File from Marvell and you have entered into a commercial +license agreement (a "Commercial License") with Marvell, the File is licensed +to you under the terms of the applicable Commercial License. + +******************************************************************************** +Marvell GPL License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File in accordance with the terms and conditions of the General +Public License Version 2, June 1991 (the "GPL License"), a copy of which is +available along with the File in the license.txt file or by writing to the Free +Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or +on the worldwide web at http://www.gnu.org/licenses/gpl.txt. + +THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED +WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY +DISCLAIMED. The GPL License provides additional details about this warranty +disclaimer. +******************************************************************************** +Marvell BSD License Option + +If you received this File from Marvell, you may opt to use, redistribute and/or +modify this File under the following licensing terms. +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 Marvell 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 OWNER 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. + +*******************************************************************************/ + +#ifndef __INCmvSpiSpecH +#define __INCmvSpiSpecH + +/* Constants */ +#define MV_SPI_WAIT_RDY_MAX_LOOP 100000 +#define MV_SPI_16_BIT_CHUNK_SIZE 2 +#define MV_SPI_DUMMY_WRITE_16BITS 0xFFFF +#define MV_SPI_DUMMY_WRITE_8BITS 0xFF + +/* Marvell Flash Device Controller Registers */ +#define MV_SPI_CTRLR_OFST 0x10600 +#define MV_SPI_IF_CTRL_REG (MV_SPI_CTRLR_OFST + 0x00) +#define MV_SPI_IF_CONFIG_REG (MV_SPI_CTRLR_OFST + 0x04) +#define MV_SPI_DATA_OUT_REG (MV_SPI_CTRLR_OFST + 0x08) +#define MV_SPI_DATA_IN_REG (MV_SPI_CTRLR_OFST + 0x0c) +#define MV_SPI_INT_CAUSE_REG (MV_SPI_CTRLR_OFST + 0x10) +#define MV_SPI_INT_CAUSE_MASK_REG (MV_SPI_CTRLR_OFST + 0x14) + +/* Serial Memory Interface Control Register Masks */ +#define MV_SPI_CS_ENABLE_OFFSET 0 /* bit 0 */ +#define MV_SPI_MEMORY_READY_OFFSET 1 /* bit 1 */ +#define MV_SPI_CS_ENABLE_MASK (0x1 << MV_SPI_CS_ENABLE_OFFSET) +#define MV_SPI_MEMORY_READY_MASK (0x1 << MV_SPI_MEMORY_READY_OFFSET) + +/* Serial Memory Interface Configuration Register Masks */ +#define MV_SPI_CLK_PRESCALE_OFFSET 0 /* bit 0-4 */ +#define MV_SPI_BYTE_LENGTH_OFFSET 5 /* bit 5 */ +#define MV_SPI_ADDRESS_BURST_LENGTH_OFFSET 8 /* bit 8-9 */ +#define MV_SPI_CLK_PRESCALE_MASK (0x1F << MV_SPI_CLK_PRESCALE_OFFSET) +#define MV_SPI_BYTE_LENGTH_MASK (0x1 << MV_SPI_BYTE_LENGTH_OFFSET) +#define MV_SPI_ADDRESS_BURST_LENGTH_MASK (0x3 << MV_SPI_ADDRESS_BURST_LENGTH_OFFSET) + +#endif /* __INCmvSpiSpecH */ + |