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author | Wolfgang Denk <wd@denx.de> | 2007-08-14 18:42:36 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2007-08-14 18:42:36 +0200 |
commit | f01dbb5424a81453c81190dd30e945891466f621 (patch) | |
tree | fd74b91afc2eabddeeab4b51940c25e334514416 /drivers/at45.c | |
parent | 3f76451b4a9f52f8c37a0526df217d12175182ea (diff) | |
download | u-boot-imx-f01dbb5424a81453c81190dd30e945891466f621.zip u-boot-imx-f01dbb5424a81453c81190dd30e945891466f621.tar.gz u-boot-imx-f01dbb5424a81453c81190dd30e945891466f621.tar.bz2 |
Coding style cleanup. Update CHANGELOG.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'drivers/at45.c')
-rwxr-xr-x | drivers/at45.c | 133 |
1 files changed, 65 insertions, 68 deletions
diff --git a/drivers/at45.c b/drivers/at45.c index 7d35695..507ff36 100755 --- a/drivers/at45.c +++ b/drivers/at45.c @@ -36,7 +36,7 @@ extern void AT91F_SpiEnable(int cs); /*----------------------------------------------------------------------*/ /* \fn AT91F_DataFlashSendCommand */ /* \brief Generic function to send a command to the dataflash */ -/*----------------------------------------------------------------------*/ +/*----------------------------------------------------------------------*/ AT91S_DataFlashStatus AT91F_DataFlashSendCommand( AT91PS_DataFlash pDataFlash, unsigned char OpCode, @@ -49,27 +49,27 @@ AT91S_DataFlashStatus AT91F_DataFlashSendCommand( return DATAFLASH_BUSY; /* process the address to obtain page address and byte address */ - adr = ((DataflashAddress / (pDataFlash->pDevice->pages_size)) << - pDataFlash->pDevice->page_offset) + (DataflashAddress % + adr = ((DataflashAddress / (pDataFlash->pDevice->pages_size)) << + pDataFlash->pDevice->page_offset) + (DataflashAddress % (pDataFlash->pDevice->pages_size)); /* fill the command buffer */ pDataFlash->pDataFlashDesc->command[0] = OpCode; if (pDataFlash->pDevice->pages_number >= 16384) { - pDataFlash->pDataFlashDesc->command[1] = + pDataFlash->pDataFlashDesc->command[1] = (unsigned char)((adr & 0x0F000000) >> 24); - pDataFlash->pDataFlashDesc->command[2] = + pDataFlash->pDataFlashDesc->command[2] = (unsigned char)((adr & 0x00FF0000) >> 16); - pDataFlash->pDataFlashDesc->command[3] = + pDataFlash->pDataFlashDesc->command[3] = (unsigned char)((adr & 0x0000FF00) >> 8); - pDataFlash->pDataFlashDesc->command[4] = + pDataFlash->pDataFlashDesc->command[4] = (unsigned char)(adr & 0x000000FF); } else { - pDataFlash->pDataFlashDesc->command[1] = + pDataFlash->pDataFlashDesc->command[1] = (unsigned char)((adr & 0x00FF0000) >> 16); - pDataFlash->pDataFlashDesc->command[2] = + pDataFlash->pDataFlashDesc->command[2] = (unsigned char)((adr & 0x0000FF00) >> 8); - pDataFlash->pDataFlashDesc->command[3] = + pDataFlash->pDataFlashDesc->command[3] = (unsigned char)(adr & 0x000000FF); pDataFlash->pDataFlashDesc->command[4] = 0; } @@ -78,10 +78,10 @@ AT91S_DataFlashStatus AT91F_DataFlashSendCommand( pDataFlash->pDataFlashDesc->command[7] = 0; /* Initialize the SpiData structure for the spi write fuction */ - pDataFlash->pDataFlashDesc->tx_cmd_pt = + pDataFlash->pDataFlashDesc->tx_cmd_pt = pDataFlash->pDataFlashDesc->command; pDataFlash->pDataFlashDesc->tx_cmd_size = CmdSize; - pDataFlash->pDataFlashDesc->rx_cmd_pt = + pDataFlash->pDataFlashDesc->rx_cmd_pt = pDataFlash->pDataFlashDesc->command; pDataFlash->pDataFlashDesc->rx_cmd_size = CmdSize; @@ -92,8 +92,8 @@ AT91S_DataFlashStatus AT91F_DataFlashSendCommand( /*----------------------------------------------------------------------*/ /* \fn AT91F_DataFlashGetStatus */ /* \brief Read the status register of the dataflash */ -/*----------------------------------------------------------------------*/ -AT91S_DataFlashStatus AT91F_DataFlashGetStatus(AT91PS_DataflashDesc pDesc) +/*----------------------------------------------------------------------*/ +AT91S_DataFlashStatus AT91F_DataFlashGetStatus(AT91PS_DataflashDesc pDesc) { AT91S_DataFlashStatus status; @@ -123,16 +123,16 @@ AT91S_DataFlashStatus AT91F_DataFlashGetStatus(AT91PS_DataflashDesc pDesc) /*----------------------------------------------------------------------*/ /* \fn AT91F_DataFlashWaitReady */ /* \brief wait for dataflash ready (bit7 of the status register == 1) */ -/*----------------------------------------------------------------------*/ -AT91S_DataFlashStatus AT91F_DataFlashWaitReady(AT91PS_DataflashDesc -pDataFlashDesc, unsigned int timeout) +/*----------------------------------------------------------------------*/ +AT91S_DataFlashStatus AT91F_DataFlashWaitReady(AT91PS_DataflashDesc +pDataFlashDesc, unsigned int timeout) { pDataFlashDesc->DataFlash_state = IDLE; do { AT91F_DataFlashGetStatus(pDataFlashDesc); timeout--; - } while( ((pDataFlashDesc->DataFlash_state & 0x80) != 0x80) && + } while( ((pDataFlashDesc->DataFlash_state & 0x80) != 0x80) && (timeout > 0) ); if((pDataFlashDesc->DataFlash_state & 0x80) != 0x80) @@ -150,7 +150,7 @@ pDataFlashDesc, unsigned int timeout) /* : <*dataBuffer> = data buffer pointer */ /* : <sizeToRead> = data buffer size */ /* Return value : State of the dataflash */ -/*--------------------------------------------------------------------------*/ +/*--------------------------------------------------------------------------*/ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead ( AT91PS_DataFlash pDataFlash, int src, @@ -159,8 +159,8 @@ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead ( { AT91S_DataFlashStatus status; /* Test the size to read in the device */ - if ( (src + sizeToRead) > - (pDataFlash->pDevice->pages_size * + if ( (src + sizeToRead) > + (pDataFlash->pDevice->pages_size * (pDataFlash->pDevice->pages_number))) return DATAFLASH_MEMORY_OVERFLOW; @@ -169,7 +169,7 @@ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead ( pDataFlash->pDataFlashDesc->tx_data_pt = dataBuffer; pDataFlash->pDataFlashDesc->tx_data_size = sizeToRead; - status = AT91F_DataFlashSendCommand + status = AT91F_DataFlashSendCommand (pDataFlash, DB_CONTINUOUS_ARRAY_READ, 8, src); /* Send the command to the dataflash */ return(status); @@ -184,7 +184,7 @@ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead ( /* : <dest> = dataflash destination address */ /* : <SizeToWrite> = data buffer size */ /* Return value : State of the dataflash */ -/*---------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf( AT91PS_DataFlash pDataFlash, unsigned char *src, @@ -201,7 +201,7 @@ AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf( /* Send the command to the dataflash */ if (pDataFlash->pDevice->pages_number >= 16384) cmdsize = 5; - return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_PGM_BUF1, + return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_PGM_BUF1, cmdsize, dest)); } @@ -212,7 +212,7 @@ cmdsize, dest)); } /* : Page concerned */ /* : */ /* Return value : State of the dataflash */ -/*---------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert( AT91PS_DataFlash pDataFlash, unsigned char BufferCommand, @@ -220,7 +220,7 @@ AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert( { int cmdsize; /* Test if the buffer command is legal */ - if ((BufferCommand != DB_PAGE_2_BUF1_TRF) + if ((BufferCommand != DB_PAGE_2_BUF1_TRF) && (BufferCommand != DB_PAGE_2_BUF2_TRF)) return DATAFLASH_BAD_COMMAND; @@ -229,7 +229,7 @@ AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert( cmdsize = 4; if (pDataFlash->pDevice->pages_number >= 16384) cmdsize = 5; - return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, cmdsize, + return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, cmdsize, page*pDataFlash->pDevice->pages_size)); } @@ -253,7 +253,7 @@ AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer ( { int cmdsize; /* Test if the buffer command is legal */ - if ((BufferCommand != DB_BUF1_WRITE) + if ((BufferCommand != DB_BUF1_WRITE) && (BufferCommand != DB_BUF2_WRITE)) return DATAFLASH_BAD_COMMAND; @@ -269,26 +269,26 @@ AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer ( pDataFlash->pDataFlashDesc->command[1] = 0; if (pDataFlash->pDevice->pages_number >= 16384) { pDataFlash->pDataFlashDesc->command[2] = 0; - pDataFlash->pDataFlashDesc->command[3] = - (unsigned char)(((unsigned int)(bufferAddress & + pDataFlash->pDataFlashDesc->command[3] = + (unsigned char)(((unsigned int)(bufferAddress & pDataFlash->pDevice->byte_mask)) >> 8); - pDataFlash->pDataFlashDesc->command[4] = + pDataFlash->pDataFlashDesc->command[4] = (unsigned char)((unsigned int)bufferAddress & 0x00FF); cmdsize = 5; } else { - pDataFlash->pDataFlashDesc->command[2] = - (unsigned char)(((unsigned int)(bufferAddress & + pDataFlash->pDataFlashDesc->command[2] = + (unsigned char)(((unsigned int)(bufferAddress & pDataFlash->pDevice->byte_mask)) >> 8); - pDataFlash->pDataFlashDesc->command[3] = + pDataFlash->pDataFlashDesc->command[3] = (unsigned char)((unsigned int)bufferAddress & 0x00FF); pDataFlash->pDataFlashDesc->command[4] = 0; cmdsize = 4; } - pDataFlash->pDataFlashDesc->tx_cmd_pt = + pDataFlash->pDataFlashDesc->tx_cmd_pt = pDataFlash->pDataFlashDesc->command; pDataFlash->pDataFlashDesc->tx_cmd_size = cmdsize; - pDataFlash->pDataFlashDesc->rx_cmd_pt = + pDataFlash->pDataFlashDesc->rx_cmd_pt = pDataFlash->pDataFlashDesc->command; pDataFlash->pDataFlashDesc->rx_cmd_size = cmdsize; @@ -320,7 +320,7 @@ AT91S_DataFlashStatus AT91F_PageErase( cmdsize = 4; if (pDataFlash->pDevice->pages_number >= 16384) cmdsize = 5; - return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_ERASE, cmdsize, + return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_ERASE, cmdsize, page*pDataFlash->pDevice->pages_size)); } @@ -332,7 +332,7 @@ page*pDataFlash->pDevice->pages_size)); /* : Page concerned */ /* : */ /* Return value : State of the dataflash */ -/*---------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ AT91S_DataFlashStatus AT91F_BlockErase( AT91PS_DataFlash pDataFlash, unsigned int block) @@ -344,7 +344,7 @@ AT91S_DataFlashStatus AT91F_BlockErase( cmdsize = 4; if (pDataFlash->pDevice->pages_number >= 16384) cmdsize = 5; - return(AT91F_DataFlashSendCommand (pDataFlash, DB_BLOCK_ERASE,cmdsize, + return(AT91F_DataFlashSendCommand (pDataFlash, DB_BLOCK_ERASE,cmdsize, block*8*pDataFlash->pDevice->pages_size)); } @@ -355,7 +355,7 @@ block*8*pDataFlash->pDevice->pages_size)); /* : <BufferCommand> = command to send to buffer1 or buffer2 */ /* : <dest> = main memory address */ /* Return value : State of the dataflash */ -/*---------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ AT91S_DataFlashStatus AT91F_WriteBufferToMain ( AT91PS_DataFlash pDataFlash, unsigned char BufferCommand, @@ -386,7 +386,7 @@ AT91S_DataFlashStatus AT91F_WriteBufferToMain ( /* Input Parameters : <page> = page number */ /* : <AdrInpage> = adr to begin the fading */ /* : <length> = Number of bytes to erase */ -/*---------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ AT91S_DataFlashStatus AT91F_PartialPageWrite ( AT91PS_DataFlash pDataFlash, unsigned char *src, @@ -400,27 +400,27 @@ AT91S_DataFlashStatus AT91F_PartialPageWrite ( AdrInPage = dest % (pDataFlash->pDevice->pages_size); /* Read the contents of the page in the Sram Buffer */ - AT91F_MainMemoryToBufferTransfert(pDataFlash, + AT91F_MainMemoryToBufferTransfert(pDataFlash, DB_PAGE_2_BUF1_TRF, page); - AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, + AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY); /*Update the SRAM buffer */ - AT91F_DataFlashWriteBuffer(pDataFlash, DB_BUF1_WRITE, src, + AT91F_DataFlashWriteBuffer(pDataFlash, DB_BUF1_WRITE, src, AdrInPage, size); - AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, + AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY); /* Erase page if a 128 Mbits device */ if (pDataFlash->pDevice->pages_number >= 16384) { AT91F_PageErase(pDataFlash, page); /* Rewrite the modified Sram Buffer in the main memory */ - AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, + AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY); } /* Rewrite the modified Sram Buffer in the main memory */ - return(AT91F_WriteBufferToMain(pDataFlash, DB_BUF1_PAGE_ERASE_PGM, + return(AT91F_WriteBufferToMain(pDataFlash, DB_BUF1_PAGE_ERASE_PGM, (page*pDataFlash->pDevice->pages_size))); } @@ -430,7 +430,7 @@ AT91S_DataFlashStatus AT91F_PartialPageWrite ( /* Input Parameters : <*src> = Source buffer */ /* : <dest> = dataflash adress */ /* : <size> = data buffer size */ -/*---------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ AT91S_DataFlashStatus AT91F_DataFlashWrite( AT91PS_DataFlash pDataFlash, unsigned char *src, @@ -443,15 +443,15 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite( AT91F_SpiEnable(pDataFlash->pDevice->cs); - if ( (dest + size) > (pDataFlash->pDevice->pages_size * + if ( (dest + size) > (pDataFlash->pDevice->pages_size * (pDataFlash->pDevice->pages_number))) return DATAFLASH_MEMORY_OVERFLOW; /* If destination does not fit a page start address */ - if ((dest % ((unsigned int)(pDataFlash->pDevice->pages_size))) != 0 ) + if ((dest % ((unsigned int)(pDataFlash->pDevice->pages_size))) != 0 ) { - length = pDataFlash->pDevice->pages_size - - (dest % + length = pDataFlash->pDevice->pages_size - + (dest % ((unsigned int) (pDataFlash->pDevice->pages_size))); @@ -461,7 +461,7 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite( if(!AT91F_PartialPageWrite(pDataFlash,src, dest, length)) return DATAFLASH_ERROR; - AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, + AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY); /* Update size, source and destination pointers */ @@ -474,24 +474,24 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite( /* program dataflash page */ page = (unsigned int)dest / (pDataFlash->pDevice->pages_size); - status = AT91F_DataFlashWriteBuffer(pDataFlash, - DB_BUF1_WRITE, src, 0, + status = AT91F_DataFlashWriteBuffer(pDataFlash, + DB_BUF1_WRITE, src, 0, pDataFlash->pDevice->pages_size); - AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, + AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY); status = AT91F_PageErase(pDataFlash, page); - AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, + AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY); if (!status) return DATAFLASH_ERROR; - status = AT91F_WriteBufferToMain (pDataFlash, + status = AT91F_WriteBufferToMain (pDataFlash, DB_BUF1_PAGE_PGM, dest); if(!status) return DATAFLASH_ERROR; - AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, + AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY); /* Update size, source and destination pointers */ @@ -506,7 +506,7 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite( if(!AT91F_PartialPageWrite(pDataFlash, src, dest, size) ) return DATAFLASH_ERROR; - AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, + AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY); } return DATAFLASH_OK; @@ -529,18 +529,18 @@ int AT91F_DataFlashRead( AT91F_SpiEnable(pDataFlash->pDevice->cs); - if(AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, + if(AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY) != DATAFLASH_OK) return -1; while (size) { SizeToRead = (size < 0x8000)? size:0x8000; - if (AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, + if (AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY) != DATAFLASH_OK) return -1; - if (AT91F_DataFlashContinuousRead (pDataFlash, addr, + if (AT91F_DataFlashContinuousRead (pDataFlash, addr, (uchar *) buffer, SizeToRead) != DATAFLASH_OK) return -1; @@ -557,13 +557,10 @@ int AT91F_DataFlashRead( /* Object : */ /* Input Parameters : */ /* Return value : Dataflash status register */ -/*---------------------------------------------------------------------------*/ +/*---------------------------------------------------------------------------*/ int AT91F_DataflashProbe(int cs, AT91PS_DataflashDesc pDesc) { AT91F_SpiEnable(cs); AT91F_DataFlashGetStatus(pDesc); - return((pDesc->command[1] == 0xFF)? 0: pDesc->command[1] & 0x3C); + return((pDesc->command[1] == 0xFF)? 0: pDesc->command[1] & 0x3C); } - #endif - - |