* Patch by Nicolas Lacressonnière, 12 Nov 2003:

  update for for Atmel AT91RM9200DK development kit:
  - support for environment variables in DataFlash
  - Atmel DataFlash AT45DB1282 support

* Patch by Jeff Carr, 11 Nov 2003:
  add support for new version of 8270 processors

* Patches by George G. Davis, 05 Nov 2003:
  - only pass the ARM linux initrd tag to the kernel when an initrd
    is actually present
  - update omap1510inn configuration file

1 files changed, 120 insertions, 25 deletions

diff --git a/cpu/at91rm9200/at45.c b/cpu/at91rm9200/at45.c
index cf456fb..9dfe560 100644
--- a/cpu/at91rm9200/at45.c
+++ b/cpu/at91rm9200/at45.c
@@ -26,6 +26,7 @@
 #include <dataflash.h>
 
 #define SPI_CLK 5000000
+#define AT91C_TIMEOUT_WRDY			200000
 #define AT91C_SPI_PCS0_SERIAL_DATAFLASH		0xE     /* Chip Select 0 : NPCS0 %1110 */
 #define AT91C_SPI_PCS3_DATAFLASH_CARD		0x7     /* Chip Select 3 : NPCS3 %0111 */
 
@@ -145,10 +146,17 @@ AT91S_DataFlashStatus AT91F_DataFlashSendCommand(
 
 	/* fill the  command  buffer */
 	pDataFlash->pDataFlashDesc->command[0] = OpCode;
-	pDataFlash->pDataFlashDesc->command[1] = (unsigned char)((adr & 0x00FF0000) >> 16);
-	pDataFlash->pDataFlashDesc->command[2] = (unsigned char)((adr & 0x0000FF00) >> 8);
-	pDataFlash->pDataFlashDesc->command[3] = (unsigned char)(adr & 0x000000FF) ;
-	pDataFlash->pDataFlashDesc->command[4] = 0;
+	if (pDataFlash->pDevice->pages_number >= 16384) {
+		pDataFlash->pDataFlashDesc->command[1] = (unsigned char)((adr & 0x0F000000) >> 24);
+		pDataFlash->pDataFlashDesc->command[2] = (unsigned char)((adr & 0x00FF0000) >> 16);
+		pDataFlash->pDataFlashDesc->command[3] = (unsigned char)((adr & 0x0000FF00) >> 8);
+		pDataFlash->pDataFlashDesc->command[4] = (unsigned char)(adr & 0x000000FF);
+	} else {
+		pDataFlash->pDataFlashDesc->command[1] = (unsigned char)((adr & 0x00FF0000) >> 16);
+		pDataFlash->pDataFlashDesc->command[2] = (unsigned char)((adr & 0x0000FF00) >> 8);
+		pDataFlash->pDataFlashDesc->command[3] = (unsigned char)(adr & 0x000000FF) ;
+		pDataFlash->pDataFlashDesc->command[4] = 0;
+	}
 	pDataFlash->pDataFlashDesc->command[5] = 0;
 	pDataFlash->pDataFlashDesc->command[6] = 0;
 	pDataFlash->pDataFlashDesc->command[7] = 0;
@@ -205,8 +213,7 @@ AT91S_DataFlashStatus AT91F_DataFlashWaitReady(AT91PS_DataflashDesc pDataFlashDe
 	do {
 		AT91F_DataFlashGetStatus(pDataFlashDesc);
 		timeout--;
-	}
-	while( ((pDataFlashDesc->DataFlash_state & 0x80) != 0x80) && (timeout > 0) );
+	} while( ((pDataFlashDesc->DataFlash_state & 0x80) != 0x80) && (timeout > 0) );
 
 	if((pDataFlashDesc->DataFlash_state & 0x80) != 0x80)
 		return DATAFLASH_ERROR;
@@ -230,6 +237,7 @@ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead (
 	unsigned char *dataBuffer,
 	int sizeToRead )
 {
+	AT91S_DataFlashStatus status;
 	/* Test the size to read in the device */
 	if ( (src + sizeToRead) > (pDataFlash->pDevice->pages_size * (pDataFlash->pDevice->pages_number)))
 		return DATAFLASH_MEMORY_OVERFLOW;
@@ -239,8 +247,9 @@ AT91S_DataFlashStatus AT91F_DataFlashContinuousRead (
 	pDataFlash->pDataFlashDesc->tx_data_pt = dataBuffer;
 	pDataFlash->pDataFlashDesc->tx_data_size = sizeToRead;
 
+	status = AT91F_DataFlashSendCommand (pDataFlash, DB_CONTINUOUS_ARRAY_READ, 8, src);
 	/* Send the command to the dataflash */
-	return(AT91F_DataFlashSendCommand (pDataFlash, DB_CONTINUOUS_ARRAY_READ, 8, src));
+	return(status);
 }
 
 
@@ -259,13 +268,17 @@ AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf(
 	unsigned int dest,
 	unsigned int SizeToWrite)
 {
+	int cmdsize;
 	pDataFlash->pDataFlashDesc->tx_data_pt = src ;
 	pDataFlash->pDataFlashDesc->tx_data_size = SizeToWrite ;
 	pDataFlash->pDataFlashDesc->rx_data_pt = src;
 	pDataFlash->pDataFlashDesc->rx_data_size = SizeToWrite;
 
+	cmdsize = 4;
 	/* Send the command to the dataflash */
-	return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_PGM_BUF1, 4, dest));
+	if (pDataFlash->pDevice->pages_number >= 16384)
+		cmdsize = 5;
+	return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_PGM_BUF1, cmdsize, dest));
 }
 
 
@@ -282,14 +295,17 @@ AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert(
 	unsigned char BufferCommand,
 	unsigned int page)
 {
+	int cmdsize;
 	/* Test if the buffer command is legal */
 	if ((BufferCommand != DB_PAGE_2_BUF1_TRF) && (BufferCommand != DB_PAGE_2_BUF2_TRF))
 		return DATAFLASH_BAD_COMMAND;
 
 	/* no data to transmit or receive */
 	pDataFlash->pDataFlashDesc->tx_data_size = 0;
-
-	return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, 4, page*pDataFlash->pDevice->pages_size));
+	cmdsize = 4;
+	if (pDataFlash->pDevice->pages_number >= 16384)
+		cmdsize = 5;
+	return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, cmdsize, page*pDataFlash->pDevice->pages_size));
 }
 
 
@@ -310,6 +326,7 @@ AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer (
 	unsigned int bufferAddress,
 	int SizeToWrite )
 {
+	int cmdsize;
 	/* Test if the buffer command is legal */
 	if ((BufferCommand != DB_BUF1_WRITE) && (BufferCommand != DB_BUF2_WRITE))
 		return DATAFLASH_BAD_COMMAND;
@@ -324,14 +341,22 @@ AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer (
 	/* Send first Write Command */
 	pDataFlash->pDataFlashDesc->command[0] = BufferCommand;
 	pDataFlash->pDataFlashDesc->command[1] = 0;
-	pDataFlash->pDataFlashDesc->command[2] = (unsigned char)(((unsigned int)(bufferAddress &  pDataFlash->pDevice->byte_mask)) >> 8) ;
-	pDataFlash->pDataFlashDesc->command[3] = (unsigned char)((unsigned int)bufferAddress  & 0x00FF) ;
-
+	if (pDataFlash->pDevice->pages_number >= 16384) {
+	    	pDataFlash->pDataFlashDesc->command[2] = 0;
+	    	pDataFlash->pDataFlashDesc->command[3] = (unsigned char)(((unsigned int)(bufferAddress &  pDataFlash->pDevice->byte_mask)) >> 8) ;
+	    	pDataFlash->pDataFlashDesc->command[4] = (unsigned char)((unsigned int)bufferAddress  & 0x00FF) ;
+		cmdsize = 5;
+	} else {
+	    	pDataFlash->pDataFlashDesc->command[2] = (unsigned char)(((unsigned int)(bufferAddress &  pDataFlash->pDevice->byte_mask)) >> 8) ;
+	    	pDataFlash->pDataFlashDesc->command[3] = (unsigned char)((unsigned int)bufferAddress  & 0x00FF) ;
+	    	pDataFlash->pDataFlashDesc->command[4] = 0;
+		cmdsize = 4;
+	}
 
 	pDataFlash->pDataFlashDesc->tx_cmd_pt 	 = pDataFlash->pDataFlashDesc->command ;
-	pDataFlash->pDataFlashDesc->tx_cmd_size = 4 ;
+	pDataFlash->pDataFlashDesc->tx_cmd_size = cmdsize ;
 	pDataFlash->pDataFlashDesc->rx_cmd_pt 	 = pDataFlash->pDataFlashDesc->command ;
-	pDataFlash->pDataFlashDesc->rx_cmd_size = 4 ;
+	pDataFlash->pDataFlashDesc->rx_cmd_size = cmdsize ;
 
 	pDataFlash->pDataFlashDesc->rx_data_pt 	= dataBuffer ;
 	pDataFlash->pDataFlashDesc->tx_data_pt 	= dataBuffer ;
@@ -341,6 +366,51 @@ AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer (
 	return AT91F_SpiWrite(pDataFlash->pDataFlashDesc);
 }
 
+/*------------------------------------------------------------------------------*/
+/* Function Name       : AT91F_PageErase                                        */
+/* Object              : Erase a page 						*/
+/* Input Parameters    : DataFlash Service					*/
+/*                     : Page concerned						*/
+/*                     : 							*/
+/* Return value		: State of the dataflash				*/
+/*------------------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_PageErase(
+	AT91PS_DataFlash pDataFlash,
+	unsigned int page)
+{
+	int cmdsize;
+	/* Test if the buffer command is legal */
+	/* no data to transmit or receive */
+    	pDataFlash->pDataFlashDesc->tx_data_size = 0;
+
+	cmdsize = 4;
+	if (pDataFlash->pDevice->pages_number >= 16384)
+		cmdsize = 5;
+	return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_ERASE, cmdsize, page*pDataFlash->pDevice->pages_size));
+}
+
+
+/*------------------------------------------------------------------------------*/
+/* Function Name       : AT91F_BlockErase                                       */
+/* Object              : Erase a Block 						*/
+/* Input Parameters    : DataFlash Service					*/
+/*                     : Page concerned						*/
+/*                     : 							*/
+/* Return value		: State of the dataflash				*/
+/*------------------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_BlockErase(
+	AT91PS_DataFlash pDataFlash,
+	unsigned int block)
+{
+	int cmdsize;
+	/* Test if the buffer command is legal */
+	/* no data to transmit or receive */
+    	pDataFlash->pDataFlashDesc->tx_data_size = 0;
+	cmdsize = 4;
+	if (pDataFlash->pDevice->pages_number >= 16384)
+		cmdsize = 5;
+	return(AT91F_DataFlashSendCommand (pDataFlash, DB_BLOCK_ERASE,cmdsize, block*8*pDataFlash->pDevice->pages_size));
+}
 
 /*------------------------------------------------------------------------------*/
 /* Function Name       : AT91F_WriteBufferToMain				*/
@@ -355,6 +425,7 @@ AT91S_DataFlashStatus AT91F_WriteBufferToMain (
 	unsigned char BufferCommand,
 	unsigned int dest )
 {
+	int cmdsize;
 	/* Test if the buffer command is correct */
 	if ((BufferCommand != DB_BUF1_PAGE_PGM) &&
 	    (BufferCommand != DB_BUF1_PAGE_ERASE_PGM) &&
@@ -365,8 +436,11 @@ AT91S_DataFlashStatus AT91F_WriteBufferToMain (
 	/* no data to transmit or receive */
 	pDataFlash->pDataFlashDesc->tx_data_size = 0;
 
+	cmdsize = 4;
+	if (pDataFlash->pDevice->pages_number >= 16384)
+		cmdsize = 5;
 	/* Send the command to the dataflash */
-	return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, 4, dest));
+	return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, cmdsize, dest));
 }
 
 
@@ -391,10 +465,18 @@ AT91S_DataFlashStatus AT91F_PartialPageWrite (
 
 	/* Read the contents of the page in the Sram Buffer */
 	AT91F_MainMemoryToBufferTransfert(pDataFlash, DB_PAGE_2_BUF1_TRF, page);
-	AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 1000);
+	AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY);
 	/*Update the SRAM buffer */
 	AT91F_DataFlashWriteBuffer(pDataFlash, DB_BUF1_WRITE, src, AdrInPage, size);
-	AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 1000);
+
+	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, AT91C_TIMEOUT_WRDY);
+	}
 
 	/* Rewrite the modified Sram Buffer in the main memory */
 	return(AT91F_WriteBufferToMain(pDataFlash, DB_BUF1_PAGE_ERASE_PGM, (page*pDataFlash->pDevice->pages_size)));
@@ -402,7 +484,7 @@ AT91S_DataFlashStatus AT91F_PartialPageWrite (
 
 
 /*------------------------------------------------------------------------------*/
-/* Function Name       : AT91F_DataFlashWrite_Overloaded			*/
+/* Function Name       : AT91F_DataFlashWrite					*/
 /* Object              :							*/
 /* Input Parameters    : <*src> = Source buffer					*/
 /*                     : <dest> = dataflash adress				*/
@@ -415,6 +497,8 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite(
 	int size )
 {
 	unsigned int length;
+	unsigned int page;
+	unsigned int status;
 
 	AT91F_SpiEnable(pDataFlash->pDevice->cs);
 
@@ -431,7 +515,7 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite(
 		if(!AT91F_PartialPageWrite(pDataFlash,src, dest, length))
 			return DATAFLASH_ERROR;
 
-		AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 1000);
+		AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY);
 
 		/* Update size, source and destination pointers */
 		size -= length;
@@ -441,10 +525,21 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite(
 
 	while (( size - pDataFlash->pDevice->pages_size ) >= 0 ) {
 		/* program dataflash page */
-		if(!AT91F_DataFlashPagePgmBuf(pDataFlash, src, dest, pDataFlash->pDevice->pages_size ))
+		page = (unsigned int)dest / (pDataFlash->pDevice->pages_size);
+
+		status = AT91F_DataFlashWriteBuffer(pDataFlash, DB_BUF1_WRITE, src, 0, pDataFlash->pDevice->pages_size);
+		AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY);
+
+		status = AT91F_PageErase(pDataFlash, page);
+		AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY);
+		if (!status)
+			return DATAFLASH_ERROR;
+
+		status = AT91F_WriteBufferToMain (pDataFlash, DB_BUF1_PAGE_PGM, dest);
+		if(!status)
 			return DATAFLASH_ERROR;
 
-		AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 1000);
+		AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY);
 
 		/* Update size, source and destination pointers */
 		size -= pDataFlash->pDevice->pages_size ;
@@ -458,7 +553,7 @@ AT91S_DataFlashStatus AT91F_DataFlashWrite(
 		if(!AT91F_PartialPageWrite(pDataFlash, src, dest, size) )
 			return DATAFLASH_ERROR;
 
-		AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 1000);
+		AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY);
 	}
 	return DATAFLASH_OK;
 }
@@ -480,13 +575,13 @@ int AT91F_DataFlashRead(
 
 	AT91F_SpiEnable(pDataFlash->pDevice->cs);
 
-	if(AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 1000) != DATAFLASH_OK)
+	if(AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
 		return -1;
 
 	while (size) {
 		SizeToRead = (size < 0x8000)? size:0x8000;
 
-		if (AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, 1000) != DATAFLASH_OK)
+		if (AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
 			return -1;
 
 		if (AT91F_DataFlashContinuousRead (pDataFlash, addr, buffer, SizeToRead) != DATAFLASH_OK)