* Patch by Gary Jennejohn, 01 Oct 2004:

  - add support for CMC PU2 board
  - add support for I2C on at91rm9200

* Patch by Gary Jennejohn, 28 Sep 2004:
  fix baudrate handling on at91rm9200

CHANGELOG

@@ -2,6 +2,13 @@
 Changes since U-Boot 1.1.1:
 ======================================================================
 
+* Patch by Gary Jennejohn, 01 Oct 2004:
+  - add support for CMC PU2 board
+  - add support for I2C on at91rm9200
+
+* Patch by Gary Jennejohn, 28 Sep 2004:
+  fix baudrate handling on at91rm9200
+
 * Patch by Yuli Barcohen, 22 Aug 2004:
   - remove ZPC.1900 board-specific flash driver;
     switch the port to generic CFI driver;

Makefile

@@ -1294,6 +1294,9 @@ evb4510_config :	unconfig
 at91rm9200dk_config	:	unconfig
 	@./mkconfig $(@:_config=) arm at91rm9200 at91rm9200dk
 
+cmc_pu2_config	:	unconfig
+	@./mkconfig $(@:_config=) arm at91rm9200 cmc_pu2
+
 #########################################################################
 ## XScale Systems
 #########################################################################

board/cmc_pu2/Makefile

@@ -0,0 +1,47 @@
+#
+# (C) Copyright 2003
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	:= at91rm9200dk.o at45.o dm9161.o flash.o
+SOBJS	:= memsetup.o
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) crv $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+-include .depend
+
+#########################################################################

board/cmc_pu2/at45.c

@@ -0,0 +1,621 @@
+/* Driver for ATMEL DataFlash support
+ * Author : Hamid Ikdoumi (Atmel)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+
+#include <config.h>
+#include <common.h>
+#include <asm/hardware.h>
+
+#ifdef CONFIG_HAS_DATAFLASH
+#include <dataflash.h>
+
+#define AT91C_SPI_CLK	10000000	/* Max Value = 10MHz to be compliant to
+the Continuous Array Read function */
+
+/* AC Characteristics */
+/* DLYBS = tCSS = 250ns min and DLYBCT = tCSH = 250ns */
+#define DATAFLASH_TCSS	(0xC << 16)
+#define DATAFLASH_TCHS	(0x1 << 24)
+
+#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 */
+
+void AT91F_SpiInit(void) {
+
+/*-------------------------------------------------------------------*/
+/*	SPI DataFlash Init								*/
+/*-------------------------------------------------------------------*/
+	/* Configure PIOs */
+	AT91C_BASE_PIOA->PIO_ASR = AT91C_PA3_NPCS0 | AT91C_PA4_NPCS1 | AT91C_PA1_MOSI | AT91C_PA5_NPCS2 |
+				   AT91C_PA6_NPCS3 | AT91C_PA0_MISO | AT91C_PA2_SPCK;
+	AT91C_BASE_PIOA->PIO_PDR = AT91C_PA3_NPCS0 | AT91C_PA4_NPCS1 | AT91C_PA1_MOSI | AT91C_PA5_NPCS2 |
+				   AT91C_PA6_NPCS3 | AT91C_PA0_MISO | AT91C_PA2_SPCK;
+	/* Enable CLock */
+	AT91C_BASE_PMC->PMC_PCER = 1 << AT91C_ID_SPI;
+
+	/* Reset the SPI */
+	AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SWRST;
+
+	/* Configure SPI in Master Mode with No CS selected !!! */
+	AT91C_BASE_SPI->SPI_MR = AT91C_SPI_MSTR | AT91C_SPI_MODFDIS | AT91C_SPI_PCS;
+
+	/* Configure CS0 and CS3 */
+	*(AT91C_SPI_CSR + 0) = AT91C_SPI_CPOL | (AT91C_SPI_DLYBS & DATAFLASH_TCSS) | (AT91C_SPI_DLYBCT &
+	DATAFLASH_TCHS) | ((AT91C_MASTER_CLOCK / (2*AT91C_SPI_CLK)) << 8);
+
+	*(AT91C_SPI_CSR + 3) = AT91C_SPI_CPOL | (AT91C_SPI_DLYBS & DATAFLASH_TCSS) | (AT91C_SPI_DLYBCT &
+	DATAFLASH_TCHS) | ((AT91C_MASTER_CLOCK / (2*AT91C_SPI_CLK)) << 8);
+
+}
+
+void AT91F_SpiEnable(int cs) {
+	switch(cs) {
+	case 0:	/* Configure SPI CS0 for Serial DataFlash AT45DBxx */
+		AT91C_BASE_SPI->SPI_MR &= 0xFFF0FFFF;
+		AT91C_BASE_SPI->SPI_MR |= ((AT91C_SPI_PCS0_SERIAL_DATAFLASH<<16) & AT91C_SPI_PCS);
+		break;
+	case 3:	/* Configure SPI CS3 for Serial DataFlash Card */
+		/* Set up PIO SDC_TYPE to switch on DataFlash Card and not MMC/SDCard */
+		AT91C_BASE_PIOB->PIO_PER = AT91C_PIO_PB7;	/* Set in PIO mode */
+		AT91C_BASE_PIOB->PIO_OER = AT91C_PIO_PB7;	/* Configure in output */
+		/* Clear Output */
+		AT91C_BASE_PIOB->PIO_CODR = AT91C_PIO_PB7;
+		/* Configure PCS */
+		AT91C_BASE_SPI->SPI_MR &= 0xFFF0FFFF;
+		AT91C_BASE_SPI->SPI_MR |= ((AT91C_SPI_PCS3_DATAFLASH_CARD<<16) & AT91C_SPI_PCS);
+		break;
+	}
+
+	/* SPI_Enable */
+	AT91C_BASE_SPI->SPI_CR = AT91C_SPI_SPIEN;
+}
+
+/*----------------------------------------------------------------------------*/
+/* \fn    AT91F_SpiWrite						      */
+/* \brief Set the PDC registers for a transfert				      */
+/*----------------------------------------------------------------------------*/
+unsigned int AT91F_SpiWrite ( AT91PS_DataflashDesc pDesc )
+{
+	unsigned int timeout;
+
+	pDesc->state = BUSY;
+
+	AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS;
+
+	/* Initialize the Transmit and Receive Pointer */
+	AT91C_BASE_SPI->SPI_RPR = (unsigned int)pDesc->rx_cmd_pt ;
+	AT91C_BASE_SPI->SPI_TPR = (unsigned int)pDesc->tx_cmd_pt ;
+
+	/* Intialize the Transmit and Receive Counters */
+	AT91C_BASE_SPI->SPI_RCR = pDesc->rx_cmd_size;
+	AT91C_BASE_SPI->SPI_TCR = pDesc->tx_cmd_size;
+
+	if ( pDesc->tx_data_size != 0 ) {
+		/* Initialize the Next Transmit and Next Receive Pointer */
+		AT91C_BASE_SPI->SPI_RNPR = (unsigned int)pDesc->rx_data_pt ;
+		AT91C_BASE_SPI->SPI_TNPR = (unsigned int)pDesc->tx_data_pt ;
+
+		/* Intialize the Next Transmit and Next Receive Counters */
+		AT91C_BASE_SPI->SPI_RNCR = pDesc->rx_data_size ;
+		AT91C_BASE_SPI->SPI_TNCR = pDesc->tx_data_size ;
+	}
+
+	/* arm simple, non interrupt dependent timer */
+	reset_timer_masked();
+	timeout = 0;
+
+	AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTEN + AT91C_PDC_RXTEN;
+	while(!(AT91C_BASE_SPI->SPI_SR & AT91C_SPI_RXBUFF) && ((timeout = get_timer_masked() ) < CFG_SPI_WRITE_TOUT));
+	AT91C_BASE_SPI->SPI_PTCR = AT91C_PDC_TXTDIS + AT91C_PDC_RXTDIS;
+	pDesc->state = IDLE;
+
+	if (timeout >= CFG_SPI_WRITE_TOUT){
+		printf("Error Timeout\n\r");
+		return DATAFLASH_ERROR;
+	}
+
+	return DATAFLASH_OK;
+}
+
+
+/*----------------------------------------------------------------------*/
+/* \fn    AT91F_DataFlashSendCommand					*/
+/* \brief Generic function to send a command to the dataflash		*/
+/*----------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_DataFlashSendCommand(
+	AT91PS_DataFlash pDataFlash,
+	unsigned char OpCode,
+	unsigned int CmdSize,
+	unsigned int DataflashAddress)
+{
+    unsigned int adr;
+
+	if ( (pDataFlash->pDataFlashDesc->state) != IDLE)
+		return DATAFLASH_BUSY;
+
+	/* process the address to obtain page address and byte address */
+	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] = (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;
+
+	/* Initialize the SpiData structure for the spi write fuction */
+	pDataFlash->pDataFlashDesc->tx_cmd_pt   =  pDataFlash->pDataFlashDesc->command ;
+	pDataFlash->pDataFlashDesc->tx_cmd_size =  CmdSize ;
+	pDataFlash->pDataFlashDesc->rx_cmd_pt   =  pDataFlash->pDataFlashDesc->command ;
+	pDataFlash->pDataFlashDesc->rx_cmd_size =  CmdSize ;
+
+	/* send the command and read the data */
+	return AT91F_SpiWrite (pDataFlash->pDataFlashDesc);
+}
+
+
+/*----------------------------------------------------------------------*/
+/* \fn    AT91F_DataFlashGetStatus					*/
+/* \brief Read the status register of the dataflash			*/
+/*----------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_DataFlashGetStatus(AT91PS_DataflashDesc pDesc)
+{
+	AT91S_DataFlashStatus status;
+
+	/* if a transfert is in progress ==> return 0 */
+	if( (pDesc->state) != IDLE)
+		return DATAFLASH_BUSY;
+
+	/* first send the read status command (D7H) */
+	pDesc->command[0] = DB_STATUS;
+	pDesc->command[1] = 0;
+
+	pDesc->DataFlash_state  = GET_STATUS;
+	pDesc->tx_data_size 	= 0 ;	/* Transmit the command and receive response */
+	pDesc->tx_cmd_pt 		= pDesc->command ;
+	pDesc->rx_cmd_pt 		= pDesc->command ;
+	pDesc->rx_cmd_size 		= 2 ;
+	pDesc->tx_cmd_size 		= 2 ;
+	status = AT91F_SpiWrite (pDesc);
+
+	pDesc->DataFlash_state = *( (unsigned char *) (pDesc->rx_cmd_pt) +1);
+
+	return status;
+}
+
+
+/*----------------------------------------------------------------------*/
+/* \fn    AT91F_DataFlashWaitReady					*/
+/* \brief wait for dataflash ready (bit7 of the status register == 1)	*/
+/*----------------------------------------------------------------------*/
+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) && (timeout > 0) );
+
+	if((pDataFlashDesc->DataFlash_state & 0x80) != 0x80)
+		return DATAFLASH_ERROR;
+
+	return DATAFLASH_OK;
+}
+
+
+/*------------------------------------------------------------------------------*/
+/* Function Name       : AT91F_DataFlashContinuousRead 				*/
+/* Object              : Continuous stream Read 				*/
+/* Input Parameters    : DataFlash Service					*/
+/*						: <src> = dataflash address	*/
+/*                     : <*dataBuffer> = data buffer pointer			*/
+/*                     : <sizeToRead> = data buffer size			*/
+/* Return value		: State of the dataflash				*/
+/*------------------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_DataFlashContinuousRead (
+	AT91PS_DataFlash pDataFlash,
+	int src,
+	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;
+
+	pDataFlash->pDataFlashDesc->rx_data_pt = dataBuffer;
+	pDataFlash->pDataFlashDesc->rx_data_size = sizeToRead;
+	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(status);
+}
+
+
+/*------------------------------------------------------------------------------*/
+/* Function Name       : AT91F_DataFlashPagePgmBuf				*/
+/* Object              : Main memory page program through buffer 1 or buffer 2	*/
+/* Input Parameters    : DataFlash Service					*/
+/*						: <*src> = Source buffer	*/
+/*                     : <dest> = dataflash destination address			*/
+/*                     : <SizeToWrite> = data buffer size			*/
+/* Return value		: State of the dataflash				*/
+/*------------------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_DataFlashPagePgmBuf(
+	AT91PS_DataFlash pDataFlash,
+	unsigned char *src,
+	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 */
+	if (pDataFlash->pDevice->pages_number >= 16384)
+		cmdsize = 5;
+	return(AT91F_DataFlashSendCommand (pDataFlash, DB_PAGE_PGM_BUF1, cmdsize, dest));
+}
+
+
+/*------------------------------------------------------------------------------*/
+/* Function Name       : AT91F_MainMemoryToBufferTransfert			*/
+/* Object              : Read a page in the SRAM Buffer 1 or 2			*/
+/* Input Parameters    : DataFlash Service					*/
+/*                     : Page concerned						*/
+/*                     : 							*/
+/* Return value		: State of the dataflash				*/
+/*------------------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_MainMemoryToBufferTransfert(
+	AT91PS_DataFlash pDataFlash,
+	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;
+	cmdsize = 4;
+	if (pDataFlash->pDevice->pages_number >= 16384)
+		cmdsize = 5;
+	return(AT91F_DataFlashSendCommand (pDataFlash, BufferCommand, cmdsize, page*pDataFlash->pDevice->pages_size));
+}
+
+
+/*----------------------------------------------------------------------------- */
+/* Function Name       : AT91F_DataFlashWriteBuffer				*/
+/* Object              : Write data to the internal sram buffer 1 or 2		*/
+/* Input Parameters    : DataFlash Service					*/
+/*			: <BufferCommand> = command to write buffer1 or buffer2	*/
+/*                     : <*dataBuffer> = data buffer to write			*/
+/*                     : <bufferAddress> = address in the internal buffer	*/
+/*                     : <SizeToWrite> = data buffer size			*/
+/* Return value		: State of the dataflash				*/
+/*------------------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_DataFlashWriteBuffer (
+	AT91PS_DataFlash pDataFlash,
+	unsigned char BufferCommand,
+	unsigned char *dataBuffer,
+	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;
+
+	/* buffer address must be lower than page size */
+	if (bufferAddress > pDataFlash->pDevice->pages_size)
+		return DATAFLASH_BAD_ADDRESS;
+
+	if ( (pDataFlash->pDataFlashDesc->state)  != IDLE)
+		return DATAFLASH_BUSY;
+
+	/* Send first Write Command */
+	pDataFlash->pDataFlashDesc->command[0] = BufferCommand;
+	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->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 = cmdsize ;
+	pDataFlash->pDataFlashDesc->rx_cmd_pt 	 = pDataFlash->pDataFlashDesc->command ;
+	pDataFlash->pDataFlashDesc->rx_cmd_size = cmdsize ;
+
+	pDataFlash->pDataFlashDesc->rx_data_pt 	= dataBuffer ;
+	pDataFlash->pDataFlashDesc->tx_data_pt 	= dataBuffer ;
+	pDataFlash->pDataFlashDesc->rx_data_size 	= SizeToWrite ;
+	pDataFlash->pDataFlashDesc->tx_data_size 	= SizeToWrite ;
+
+	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				*/
+/* Object              : Write buffer to the main memory			*/
+/* Input Parameters    : DataFlash Service					*/
+/*		: <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,
+	unsigned int dest )
+{
+	int cmdsize;
+	/* Test if the buffer command is correct */
+	if ((BufferCommand != DB_BUF1_PAGE_PGM) &&
+	    (BufferCommand != DB_BUF1_PAGE_ERASE_PGM) &&
+	    (BufferCommand != DB_BUF2_PAGE_PGM) &&
+	    (BufferCommand != DB_BUF2_PAGE_ERASE_PGM) )
+		return DATAFLASH_BAD_COMMAND;
+
+	/* 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, cmdsize, dest));
+}
+
+
+/*------------------------------------------------------------------------------*/
+/* Function Name       : AT91F_PartialPageWrite					*/
+/* Object              : Erase partielly a page					*/
+/* 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,
+	unsigned int dest,
+	unsigned int size)
+{
+	unsigned int page;
+	unsigned int AdrInPage;
+
+	page = dest / (pDataFlash->pDevice->pages_size);
+	AdrInPage = dest % (pDataFlash->pDevice->pages_size);
+
+	/* Read the contents of the page in the Sram Buffer */
+	AT91F_MainMemoryToBufferTransfert(pDataFlash, DB_PAGE_2_BUF1_TRF, page);
+	AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY);
+	/*Update the SRAM buffer */
+	AT91F_DataFlashWriteBuffer(pDataFlash, DB_BUF1_WRITE, src, AdrInPage, size);
+
+	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)));
+}
+
+
+/*------------------------------------------------------------------------------*/
+/* Function Name       : AT91F_DataFlashWrite					*/
+/* Object              :							*/
+/* Input Parameters    : <*src> = Source buffer					*/
+/*                     : <dest> = dataflash adress				*/
+/*                     : <size> = data buffer size				*/
+/*------------------------------------------------------------------------------*/
+AT91S_DataFlashStatus AT91F_DataFlashWrite(
+	AT91PS_DataFlash pDataFlash,
+	unsigned char *src,
+	int dest,
+	int size )
+{
+	unsigned int length;
+	unsigned int page;
+	unsigned int status;
+
+	AT91F_SpiEnable(pDataFlash->pDevice->cs);
+
+	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 ) {
+		length = pDataFlash->pDevice->pages_size - (dest % ((unsigned int)(pDataFlash->pDevice->pages_size)));
+
+		if (size < length)
+			length = size;
+
+		if(!AT91F_PartialPageWrite(pDataFlash,src, dest, length))
+			return DATAFLASH_ERROR;
+
+		AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY);
+
+		/* Update size, source and destination pointers */
+		size -= length;
+		dest += length;
+		src += length;
+	}
+
+	while (( size - pDataFlash->pDevice->pages_size ) >= 0 ) {
+		/* program dataflash page */
+		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, AT91C_TIMEOUT_WRDY);
+
+		/* Update size, source and destination pointers */
+		size -= pDataFlash->pDevice->pages_size ;
+		dest += pDataFlash->pDevice->pages_size ;
+		src  += pDataFlash->pDevice->pages_size ;
+	}
+
+	/* If still some bytes to read */
+	if ( size > 0 ) {
+		/* program dataflash page */
+		if(!AT91F_PartialPageWrite(pDataFlash, src, dest, size) )
+			return DATAFLASH_ERROR;
+
+		AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY);
+	}
+	return DATAFLASH_OK;
+}
+
+
+/*------------------------------------------------------------------------------*/
+/* Function Name       : AT91F_DataFlashRead 					*/
+/* Object              : Read a block in dataflash				*/
+/* Input Parameters    : 							*/
+/* Return value		: 							*/
+/*------------------------------------------------------------------------------*/
+int AT91F_DataFlashRead(
+	AT91PS_DataFlash pDataFlash,
+	unsigned long addr,
+	unsigned long size,
+	char *buffer)
+{
+	unsigned long SizeToRead;
+
+	AT91F_SpiEnable(pDataFlash->pDevice->cs);
+
+	if(AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
+		return -1;
+
+	while (size) {
+		SizeToRead = (size < 0x8000)? size:0x8000;
+
+		if (AT91F_DataFlashWaitReady(pDataFlash->pDataFlashDesc, AT91C_TIMEOUT_WRDY) != DATAFLASH_OK)
+			return -1;
+
+		if (AT91F_DataFlashContinuousRead (pDataFlash, addr, buffer, SizeToRead) != DATAFLASH_OK)
+			return -1;
+
+		size -= SizeToRead;
+		addr += SizeToRead;
+		buffer += SizeToRead;
+	}
+
+	return DATAFLASH_OK;
+}
+
+
+/*------------------------------------------------------------------------------*/
+/* Function Name       : AT91F_DataflashProbe 					*/
+/* 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);
+}
+
+#endif

board/cmc_pu2/at91rm9200dk.c

@@ -0,0 +1,118 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/arch/AT91RM9200.h>
+
+/* ------------------------------------------------------------------------- */
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	/* Enable Ctrlc */
+	console_init_f ();
+
+	/* Correct IRDA resistor problem */
+	/* Set PA23_TXD in Output */
+	(AT91PS_PIO) AT91C_BASE_PIOA->PIO_OER = AT91C_PA23_TXD2;
+
+	/* memory and cpu-speed are setup before relocation */
+	/* so we do _nothing_ here */
+
+	/* arch number of AT91RM9200DK-Board */
+	gd->bd->bi_arch_number = 251;
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	return 0;
+}
+
+int dram_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_SIZE;
+	return 0;
+}
+
+/*
+ * Disk On Chip (NAND) Millenium initialization.
+ * The NAND lives in the CS2* space
+ */
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+extern ulong nand_probe (ulong physadr);
+
+#define AT91_SMARTMEDIA_BASE 0x40000000	/* physical address to access memory on NCS3 */
+void nand_init (void)
+{
+	/* Setup Smart Media, fitst enable the address range of CS3 */
+	*AT91C_EBI_CSA |= AT91C_EBI_CS3A_SMC_SmartMedia;
+	/* set the bus interface characteristics based on
+	   tDS Data Set up Time 30 - ns
+	   tDH Data Hold Time 20 - ns
+	   tALS ALE Set up Time 20 - ns
+	   16ns at 60 MHz ~= 3  */
+/*memory mapping structures */
+#define SM_ID_RWH	(5 << 28)
+#define SM_RWH		(1 << 28)
+#define SM_RWS		(0 << 24)
+#define SM_TDF		(1 << 8)
+#define SM_NWS		(3)
+	AT91C_BASE_SMC2->SMC2_CSR[3] = (SM_RWH | SM_RWS |
+		AT91C_SMC2_ACSS_STANDARD | AT91C_SMC2_DBW_8 |
+		SM_TDF | AT91C_SMC2_WSEN | SM_NWS);
+
+	/* enable the SMOE line PC0=SMCE, A21=CLE, A22=ALE */
+	*AT91C_PIOC_ASR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE |
+		AT91C_PC3_BFBAA_SMWE;
+	*AT91C_PIOC_PDR = AT91C_PC0_BFCK | AT91C_PC1_BFRDY_SMOE |
+		AT91C_PC3_BFBAA_SMWE;
+
+	/* Configure PC2 as input (signal READY of the SmartMedia) */
+	*AT91C_PIOC_PER = AT91C_PC2_BFAVD;	/* enable direct output enable */
+	*AT91C_PIOC_ODR = AT91C_PC2_BFAVD;	/* disable output */
+
+	/* Configure PB1 as input (signal Card Detect of the SmartMedia) */
+	*AT91C_PIOB_PER = AT91C_PIO_PB1;	/* enable direct output enable */
+	*AT91C_PIOB_ODR = AT91C_PIO_PB1;	/* disable output */
+
+	/* PIOB and PIOC clock enabling */
+	*AT91C_PMC_PCER = 1 << AT91C_ID_PIOB;
+	*AT91C_PMC_PCER = 1 << AT91C_ID_PIOC;
+
+	if (*AT91C_PIOB_PDSR & AT91C_PIO_PB1)
+		printf ("  No SmartMedia card inserted\n");
+#ifdef DEBUG
+	printf ("  SmartMedia card inserted\n");
+
+	printf ("Probing at 0x%.8x\n", AT91_SMARTMEDIA_BASE);
+#endif
+	printf ("%4lu MB\n", nand_probe(AT91_SMARTMEDIA_BASE) >> 20);
+}
+#endif

board/cmc_pu2/config.mk

@@ -0,0 +1 @@
+TEXT_BASE = 0x21f00000

board/cmc_pu2/dm9161.c

@@ -0,0 +1,243 @@
+/*
+ * (C) Copyright 2003
+ * Author : Hamid Ikdoumi (Atmel)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <at91rm9200_net.h>
+#include <net.h>
+#include <dm9161.h>
+
+#ifdef CONFIG_DRIVER_ETHER
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+
+/*
+ * Name:
+ *	dm9161_IsPhyConnected
+ * Description:
+ *	Reads the 2 PHY ID registers
+ * Arguments:
+ *	p_mac - pointer to AT91S_EMAC struct
+ * Return value:
+ *	TRUE - if id read successfully
+ *	FALSE- if error
+ */
+static unsigned int dm9161_IsPhyConnected (AT91PS_EMAC p_mac)
+{
+	unsigned short Id1, Id2;
+
+	at91rm9200_EmacEnableMDIO (p_mac);
+	at91rm9200_EmacReadPhy (p_mac, DM9161_PHYID1, &Id1);
+	at91rm9200_EmacReadPhy (p_mac, DM9161_PHYID2, &Id2);
+	at91rm9200_EmacDisableMDIO (p_mac);
+
+	if ((Id1 == (DM9161_PHYID1_OUI >> 6)) &&
+		((Id2 >> 10) == (DM9161_PHYID1_OUI & DM9161_LSB_MASK)))
+		return TRUE;
+
+	return FALSE;
+}
+
+/*
+ * Name:
+ *	dm9161_GetLinkSpeed
+ * Description:
+ *	Link parallel detection status of MAC is checked and set in the
+ *	MAC configuration registers
+ * Arguments:
+ *	p_mac - pointer to MAC
+ * Return value:
+ *	TRUE - if link status set succesfully
+ *	FALSE - if link status not set
+ */
+static UCHAR dm9161_GetLinkSpeed (AT91PS_EMAC p_mac)
+{
+	unsigned short stat1, stat2;
+
+	if (!at91rm9200_EmacReadPhy (p_mac, DM9161_BMSR, &stat1))
+		return FALSE;
+
+	if (!(stat1 & DM9161_LINK_STATUS))	/* link status up? */
+		return FALSE;
+
+	if (!at91rm9200_EmacReadPhy (p_mac, DM9161_DSCSR, &stat2))
+		return FALSE;
+
+	if ((stat1 & DM9161_100BASE_TX_FD) && (stat2 & DM9161_100FDX)) {
+		/*set Emac for 100BaseTX and Full Duplex  */
+		p_mac->EMAC_CFG |= AT91C_EMAC_SPD | AT91C_EMAC_FD;
+		return TRUE;
+	}
+
+	if ((stat1 & DM9161_10BASE_T_FD) && (stat2 & DM9161_10FDX)) {
+		/*set MII for 10BaseT and Full Duplex  */
+		p_mac->EMAC_CFG = (p_mac->EMAC_CFG &
+				~(AT91C_EMAC_SPD | AT91C_EMAC_FD))
+				| AT91C_EMAC_FD;
+		return TRUE;
+	}
+
+	if ((stat1 & DM9161_100BASE_T4_HD) && (stat2 & DM9161_100HDX)) {
+		/*set MII for 100BaseTX and Half Duplex  */
+		p_mac->EMAC_CFG = (p_mac->EMAC_CFG &
+				~(AT91C_EMAC_SPD | AT91C_EMAC_FD))
+				| AT91C_EMAC_SPD;
+		return TRUE;
+	}
+
+	if ((stat1 & DM9161_10BASE_T_HD) && (stat2 & DM9161_10HDX)) {
+		/*set MII for 10BaseT and Half Duplex  */
+		p_mac->EMAC_CFG &= ~(AT91C_EMAC_SPD | AT91C_EMAC_FD);
+		return TRUE;
+	}
+	return FALSE;
+}
+
+
+/*
+ * Name:
+ *	dm9161_InitPhy
+ * Description:
+ *	MAC starts checking its link by using parallel detection and
+ *	Autonegotiation and the same is set in the MAC configuration registers
+ * Arguments:
+ *	p_mac - pointer to struct AT91S_EMAC
+ * Return value:
+ *	TRUE - if link status set succesfully
+ *	FALSE - if link status not set
+ */
+static UCHAR dm9161_InitPhy (AT91PS_EMAC p_mac)
+{
+	UCHAR ret = TRUE;
+	unsigned short IntValue;
+
+	at91rm9200_EmacEnableMDIO (p_mac);
+
+	if (!dm9161_GetLinkSpeed (p_mac)) {
+		/* Try another time */
+		ret = dm9161_GetLinkSpeed (p_mac);
+	}
+
+	/* Disable PHY Interrupts */
+	at91rm9200_EmacReadPhy (p_mac, DM9161_MDINTR, &IntValue);
+	/* clear FDX, SPD, Link, INTR masks */
+	IntValue &= ~(DM9161_FDX_MASK | DM9161_SPD_MASK |
+		      DM9161_LINK_MASK | DM9161_INTR_MASK);
+	at91rm9200_EmacWritePhy (p_mac, DM9161_MDINTR, &IntValue);
+	at91rm9200_EmacDisableMDIO (p_mac);
+
+	return (ret);
+}
+
+
+/*
+ * Name:
+ *	dm9161_AutoNegotiate
+ * Description:
+ *	MAC Autonegotiates with the partner status of same is set in the
+ *	MAC configuration registers
+ * Arguments:
+ *	dev - pointer to struct net_device
+ * Return value:
+ *	TRUE - if link status set successfully
+ *	FALSE - if link status not set
+ */
+static UCHAR dm9161_AutoNegotiate (AT91PS_EMAC p_mac, int *status)
+{
+	unsigned short value;
+	unsigned short PhyAnar;
+	unsigned short PhyAnalpar;
+
+	/* Set dm9161 control register */
+	if (!at91rm9200_EmacReadPhy (p_mac, DM9161_BMCR, &value))
+		return FALSE;
+	value &= ~DM9161_AUTONEG;	/* remove autonegotiation enable */
+	value |= DM9161_ISOLATE;	/* Electrically isolate PHY */
+	if (!at91rm9200_EmacWritePhy (p_mac, DM9161_BMCR, &value))
+		return FALSE;
+
+	/* Set the Auto_negotiation Advertisement Register */
+	/* MII advertising for Next page, 100BaseTxFD and HD, 10BaseTFD and HD, IEEE 802.3 */
+	PhyAnar = DM9161_NP | DM9161_TX_FDX | DM9161_TX_HDX |
+		  DM9161_10_FDX | DM9161_10_HDX | DM9161_AN_IEEE_802_3;
+	if (!at91rm9200_EmacWritePhy (p_mac, DM9161_ANAR, &PhyAnar))
+		return FALSE;
+
+	/* Read the Control Register     */
+	if (!at91rm9200_EmacReadPhy (p_mac, DM9161_BMCR, &value))
+		return FALSE;
+
+	value |= DM9161_SPEED_SELECT | DM9161_AUTONEG | DM9161_DUPLEX_MODE;
+	if (!at91rm9200_EmacWritePhy (p_mac, DM9161_BMCR, &value))
+		return FALSE;
+	/* Restart Auto_negotiation  */
+	value |= DM9161_RESTART_AUTONEG;
+	if (!at91rm9200_EmacWritePhy (p_mac, DM9161_BMCR, &value))
+		return FALSE;
+
+	/*check AutoNegotiate complete */
+	udelay (10000);
+	at91rm9200_EmacReadPhy (p_mac, DM9161_BMSR, &value);
+	if (!(value & DM9161_AUTONEG_COMP))
+		return FALSE;
+
+	/* Get the AutoNeg Link partner base page */
+	if (!at91rm9200_EmacReadPhy (p_mac, DM9161_ANLPAR, &PhyAnalpar))
+		return FALSE;
+
+	if ((PhyAnar & DM9161_TX_FDX) && (PhyAnalpar & DM9161_TX_FDX)) {
+		/*set MII for 100BaseTX and Full Duplex  */
+		p_mac->EMAC_CFG |= AT91C_EMAC_SPD | AT91C_EMAC_FD;
+		return TRUE;
+	}
+
+	if ((PhyAnar & DM9161_10_FDX) && (PhyAnalpar & DM9161_10_FDX)) {
+		/*set MII for 10BaseT and Full Duplex  */
+		p_mac->EMAC_CFG = (p_mac->EMAC_CFG &
+				~(AT91C_EMAC_SPD | AT91C_EMAC_FD))
+				| AT91C_EMAC_FD;
+		return TRUE;
+	}
+	return FALSE;
+}
+
+
+/*
+ * Name:
+ *	at91rm92000_GetPhyInterface
+ * Description:
+ *	Initialise the interface functions to the PHY
+ * Arguments:
+ *	None
+ * Return value:
+ *	None
+ */
+void at91rm92000_GetPhyInterface(AT91PS_PhyOps p_phyops)
+{
+	p_phyops->Init = dm9161_InitPhy;
+	p_phyops->IsPhyConnected = dm9161_IsPhyConnected;
+	p_phyops->GetLinkSpeed = dm9161_GetLinkSpeed;
+	p_phyops->AutoNegotiate = dm9161_AutoNegotiate;
+}
+
+#endif	/* CONFIG_COMMANDS & CFG_CMD_NET */
+
+#endif	/* CONFIG_DRIVER_ETHER */

board/cmc_pu2/flash.c

@@ -0,0 +1,507 @@
+/*
+ * (C) Copyright 2002
+ * Lineo, Inc. <www.lineo.com>
+ * Bernhard Kuhn <bkuhn@lineo.com>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+
+ulong myflush(void);
+
+
+/* Flash Organization Structure */
+typedef struct OrgDef
+{
+	unsigned int sector_number;
+	unsigned int sector_size;
+} OrgDef;
+
+
+/* Flash Organizations */
+OrgDef OrgAT49BV16x4[] =
+{
+	{  8,  8*1024 },	/*   8 *  8 kBytes sectors */
+	{  2, 32*1024 },	/*   2 * 32 kBytes sectors */
+	{ 30, 64*1024 },	/*  30 * 64 kBytes sectors */
+};
+
+OrgDef OrgAT49BV16x4A[] =
+{
+	{  8,  8*1024 },	/*   8 *  8 kBytes sectors */
+	{ 31, 64*1024 },	/*  31 * 64 kBytes sectors */
+};
+
+OrgDef OrgAT49BV6416[] =
+{
+	{   8,  8*1024 },	/*   8 *  8 kBytes sectors */
+	{ 127, 64*1024 },	/* 127 * 64 kBytes sectors */
+};
+
+flash_info_t    flash_info[CFG_MAX_FLASH_BANKS];
+
+/* AT49BV1614A Codes */
+#define FLASH_CODE1		0xAA
+#define FLASH_CODE2		0x55
+#define ID_IN_CODE		0x90
+#define ID_OUT_CODE		0xF0
+
+
+#define CMD_READ_ARRAY		0x00F0
+#define CMD_UNLOCK1		0x00AA
+#define CMD_UNLOCK2		0x0055
+#define CMD_ERASE_SETUP		0x0080
+#define CMD_ERASE_CONFIRM	0x0030
+#define CMD_PROGRAM		0x00A0
+#define CMD_UNLOCK_BYPASS	0x0020
+#define CMD_SECTOR_UNLOCK	0x0070
+
+#define MEM_FLASH_ADDR1		(*(volatile u16 *)(CFG_FLASH_BASE + (0x00005555<<1)))
+#define MEM_FLASH_ADDR2		(*(volatile u16 *)(CFG_FLASH_BASE + (0x00002AAA<<1)))
+
+#define BIT_ERASE_DONE		0x0080
+#define BIT_RDY_MASK		0x0080
+#define BIT_PROGRAM_ERROR	0x0020
+#define BIT_TIMEOUT		0x80000000 /* our flag */
+
+#define READY 1
+#define ERR   2
+#define TMO   4
+
+/*-----------------------------------------------------------------------
+ */
+void flash_identification (flash_info_t * info)
+{
+	volatile u16 manuf_code, device_code, add_device_code;
+
+	MEM_FLASH_ADDR1 = FLASH_CODE1;
+	MEM_FLASH_ADDR2 = FLASH_CODE2;
+	MEM_FLASH_ADDR1 = ID_IN_CODE;
+
+	manuf_code = *(volatile u16 *) CFG_FLASH_BASE;
+	device_code = *(volatile u16 *) (CFG_FLASH_BASE + 2);
+	add_device_code = *(volatile u16 *) (CFG_FLASH_BASE + (3 << 1));
+
+	MEM_FLASH_ADDR1 = FLASH_CODE1;
+	MEM_FLASH_ADDR2 = FLASH_CODE2;
+	MEM_FLASH_ADDR1 = ID_OUT_CODE;
+
+	/* Vendor type */
+	info->flash_id = ATM_MANUFACT & FLASH_VENDMASK;
+	printf ("Atmel: ");
+
+	if ((device_code & FLASH_TYPEMASK) == (ATM_ID_BV1614 & FLASH_TYPEMASK)) {
+
+		if ((add_device_code & FLASH_TYPEMASK) ==
+			(ATM_ID_BV1614A & FLASH_TYPEMASK)) {
+			info->flash_id |= ATM_ID_BV1614A & FLASH_TYPEMASK;
+			printf ("AT49BV1614A (16Mbit)\n");
+		} else {				/* AT49BV1614 Flash */
+			info->flash_id |= ATM_ID_BV1614 & FLASH_TYPEMASK;
+			printf ("AT49BV1614 (16Mbit)\n");
+		}
+
+	} else if ((device_code & FLASH_TYPEMASK) == (ATM_ID_BV6416 & FLASH_TYPEMASK)) {
+		info->flash_id |= ATM_ID_BV6416 & FLASH_TYPEMASK;
+		printf ("AT49BV6416 (64Mbit)\n");
+	}
+}
+
+ushort flash_number_sector(OrgDef *pOrgDef, unsigned int nb_blocks)
+{
+	int i, nb_sectors = 0;
+
+	for (i=0; i<nb_blocks; i++){
+		nb_sectors += pOrgDef[i].sector_number;
+	}
+
+	return nb_sectors;
+}
+
+void flash_unlock_sector(flash_info_t * info, unsigned int sector)
+{
+	volatile u16 *addr = (volatile u16 *) (info->start[sector]);
+
+	MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+	*addr = CMD_SECTOR_UNLOCK;
+}
+
+
+ulong flash_init (void)
+{
+	int i, j, k;
+	unsigned int flash_nb_blocks, sector;
+	unsigned int start_address;
+	OrgDef *pOrgDef;
+
+	ulong size = 0;
+
+	for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+		ulong flashbase = 0;
+
+		flash_identification (&flash_info[i]);
+
+		if ((flash_info[i].flash_id & FLASH_TYPEMASK) ==
+			(ATM_ID_BV1614 & FLASH_TYPEMASK)) {
+
+			pOrgDef = OrgAT49BV16x4;
+			flash_nb_blocks = sizeof (OrgAT49BV16x4) / sizeof (OrgDef);
+		} else if ((flash_info[i].flash_id & FLASH_TYPEMASK) ==
+			(ATM_ID_BV1614A & FLASH_TYPEMASK)){	/* AT49BV1614A Flash */
+
+			pOrgDef = OrgAT49BV16x4A;
+			flash_nb_blocks = sizeof (OrgAT49BV16x4A) / sizeof (OrgDef);
+		} else if ((flash_info[i].flash_id & FLASH_TYPEMASK) ==
+			(ATM_ID_BV6416 & FLASH_TYPEMASK)){	/* AT49BV6416 Flash */
+
+			pOrgDef = OrgAT49BV6416;
+			flash_nb_blocks = sizeof (OrgAT49BV6416) / sizeof (OrgDef);
+		} else {
+			flash_nb_blocks = 0;
+			pOrgDef = OrgAT49BV16x4;
+		}
+
+		flash_info[i].sector_count = flash_number_sector(pOrgDef, flash_nb_blocks);
+		memset (flash_info[i].protect, 0, flash_info[i].sector_count);
+
+		if (i == 0)
+			flashbase = PHYS_FLASH_1;
+		else
+			panic ("configured too many flash banks!\n");
+
+		sector = 0;
+		start_address = flashbase;
+		flash_info[i].size = 0;
+
+		for (j = 0; j < flash_nb_blocks; j++) {
+			for (k = 0; k < pOrgDef[j].sector_number; k++) {
+				flash_info[i].start[sector++] = start_address;
+				start_address += pOrgDef[j].sector_size;
+				flash_info[i].size += pOrgDef[j].sector_size;
+			}
+		}
+
+		size += flash_info[i].size;
+
+		if ((flash_info[i].flash_id & FLASH_TYPEMASK) ==
+			(ATM_ID_BV6416 & FLASH_TYPEMASK)){	/* AT49BV6416 Flash */
+
+			/* Unlock all sectors at reset */
+			for (j=0; j<flash_info[i].sector_count; j++){
+				flash_unlock_sector(&flash_info[i], j);
+			}
+		}
+	}
+
+	/* Protect binary boot image */
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_FLASH_BASE,
+		       CFG_FLASH_BASE + CFG_BOOT_SIZE - 1, &flash_info[0]);
+
+	/* Protect environment variables */
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_ENV_ADDR,
+		       CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
+
+	/* Protect U-Boot gzipped image */
+	flash_protect (FLAG_PROTECT_SET,
+		       CFG_U_BOOT_BASE,
+		       CFG_U_BOOT_BASE + CFG_U_BOOT_SIZE - 1, &flash_info[0]);
+
+	return size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info (flash_info_t * info)
+{
+	int i;
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case (ATM_MANUFACT & FLASH_VENDMASK):
+		printf ("Atmel: ");
+		break;
+	default:
+		printf ("Unknown Vendor ");
+		break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case (ATM_ID_BV1614 & FLASH_TYPEMASK):
+		printf ("AT49BV1614 (16Mbit)\n");
+		break;
+	case (ATM_ID_BV1614A & FLASH_TYPEMASK):
+		printf ("AT49BV1614A (16Mbit)\n");
+		break;
+	case (ATM_ID_BV6416 & FLASH_TYPEMASK):
+		printf ("AT49BV6416 (64Mbit)\n");
+		break;
+	default:
+		printf ("Unknown Chip Type\n");
+		goto Done;
+		break;
+	}
+
+	printf ("  Size: %ld MB in %d Sectors\n",
+		info->size >> 20, info->sector_count);
+
+	printf ("  Sector Start Addresses:");
+	for (i = 0; i < info->sector_count; i++) {
+		if ((i % 5) == 0) {
+			printf ("\n   ");
+		}
+		printf (" %08lX%s", info->start[i],
+			info->protect[i] ? " (RO)" : "     ");
+	}
+	printf ("\n");
+
+Done:	;
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+	ulong result;
+	int iflag, cflag, prot, sect;
+	int rc = ERR_OK;
+	int chip1;
+
+	/* first look for protection bits */
+
+	if (info->flash_id == FLASH_UNKNOWN)
+		return ERR_UNKNOWN_FLASH_TYPE;
+
+	if ((s_first < 0) || (s_first > s_last)) {
+		return ERR_INVAL;
+	}
+
+	if ((info->flash_id & FLASH_VENDMASK) !=
+		(ATM_MANUFACT & FLASH_VENDMASK)) {
+		return ERR_UNKNOWN_FLASH_VENDOR;
+	}
+
+	prot = 0;
+	for (sect = s_first; sect <= s_last; ++sect) {
+		if (info->protect[sect]) {
+			prot++;
+		}
+	}
+	if (prot)
+		return ERR_PROTECTED;
+
+	/*
+	 * Disable interrupts which might cause a timeout
+	 * here. Remember that our exception vectors are
+	 * at address 0 in the flash, and we don't want a
+	 * (ticker) exception to happen while the flash
+	 * chip is in programming mode.
+	 */
+	cflag = icache_status ();
+	icache_disable ();
+	iflag = disable_interrupts ();
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
+		printf ("Erasing sector %2d ... ", sect);
+
+		/* arm simple, non interrupt dependent timer */
+		reset_timer_masked ();
+
+		if (info->protect[sect] == 0) {	/* not protected */
+			volatile u16 *addr = (volatile u16 *) (info->start[sect]);
+
+			MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+			MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+			MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
+
+			MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+			MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+			*addr = CMD_ERASE_CONFIRM;
+
+			/* wait until flash is ready */
+			chip1 = 0;
+
+			do {
+				result = *addr;
+
+				/* check timeout */
+				if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
+					MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
+					chip1 = TMO;
+					break;
+				}
+
+				if (!chip1 && (result & 0xFFFF) & BIT_ERASE_DONE)
+					chip1 = READY;
+
+			} while (!chip1);
+
+			MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
+
+			if (chip1 == ERR) {
+				rc = ERR_PROG_ERROR;
+				goto outahere;
+			}
+			if (chip1 == TMO) {
+				rc = ERR_TIMOUT;
+				goto outahere;
+			}
+
+			printf ("ok.\n");
+		} else {			/* it was protected */
+			printf ("protected!\n");
+		}
+	}
+
+	if (ctrlc ())
+		printf ("User Interrupt!\n");
+
+outahere:
+	/* allow flash to settle - wait 10 ms */
+	udelay_masked (10000);
+
+	if (iflag)
+		enable_interrupts ();
+
+	if (cflag)
+		icache_enable ();
+
+	return rc;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash
+ */
+
+volatile static int write_word (flash_info_t * info, ulong dest,
+								ulong data)
+{
+	volatile u16 *addr = (volatile u16 *) dest;
+	ulong result;
+	int rc = ERR_OK;
+	int cflag, iflag;
+	int chip1;
+
+	/*
+	 * Check if Flash is (sufficiently) erased
+	 */
+	result = *addr;
+	if ((result & data) != data)
+		return ERR_NOT_ERASED;
+
+
+	/*
+	 * Disable interrupts which might cause a timeout
+	 * here. Remember that our exception vectors are
+	 * at address 0 in the flash, and we don't want a
+	 * (ticker) exception to happen while the flash
+	 * chip is in programming mode.
+	 */
+	cflag = icache_status ();
+	icache_disable ();
+	iflag = disable_interrupts ();
+
+	MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+	MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+	MEM_FLASH_ADDR1 = CMD_PROGRAM;
+	*addr = data;
+
+	/* arm simple, non interrupt dependent timer */
+	reset_timer_masked ();
+
+	/* wait until flash is ready */
+	chip1 = 0;
+	do {
+		result = *addr;
+
+		/* check timeout */
+		if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
+			chip1 = ERR | TMO;
+			break;
+		}
+		if (!chip1 && ((result & 0x80) == (data & 0x80)))
+			chip1 = READY;
+
+	} while (!chip1);
+
+	*addr = CMD_READ_ARRAY;
+
+	if (chip1 == ERR || *addr != data)
+		rc = ERR_PROG_ERROR;
+
+	if (iflag)
+		enable_interrupts ();
+
+	if (cflag)
+		icache_enable ();
+
+	return rc;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash.
+ */
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+	ulong wp, data;
+	int rc;
+
+	if (addr & 1) {
+		printf ("unaligned destination not supported\n");
+		return ERR_ALIGN;
+	};
+
+	if ((int) src & 1) {
+		printf ("unaligned source not supported\n");
+		return ERR_ALIGN;
+	};
+
+	wp = addr;
+
+	while (cnt >= 2) {
+		data = *((volatile u16 *) src);
+		if ((rc = write_word (info, wp, data)) != 0) {
+			return (rc);
+		}
+		src += 2;
+		wp += 2;
+		cnt -= 2;
+	}
+
+	if (cnt == 1) {
+		data = (*((volatile u8 *) src)) | (*((volatile u8 *) (wp + 1)) <<
+										   8);
+		if ((rc = write_word (info, wp, data)) != 0) {
+			return (rc);
+		}
+		src += 1;
+		wp += 1;
+		cnt -= 1;
+	};
+
+	return ERR_OK;
+}

board/cmc_pu2/memsetup.S

@@ -0,0 +1,200 @@
+/*
+ * Memory Setup stuff - taken from blob memsetup.S
+ *
+ * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and
+ *                     Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl)
+ *
+ * Modified for the at91rm9200dk board by
+ * (C) Copyright 2004
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+#include <version.h>
+
+#ifdef CONFIG_BOOTBINFUNC
+/*
+ * some parameters for the board
+ *
+ * This is based on rm9200dk.cfg for the BDI2000 from ABATRON which in
+ * turn is based on the boot.bin code from ATMMEL
+ *
+ */
+
+/* flash */
+#define MC_PUIA 0xFFFFFF10
+#define MC_PUIA_VAL 0x00000000
+#define MC_PUP 0xFFFFFF50
+#define MC_PUP_VAL 0x00000000
+#define MC_PUER 0xFFFFFF54
+#define MC_PUER_VAL 0x00000000
+#define MC_ASR 0xFFFFFF04
+#define MC_ASR_VAL 0x00000000
+#define MC_AASR 0xFFFFFF08
+#define MC_AASR_VAL 0x00000000
+#define EBI_CFGR 0xFFFFFF64
+#define EBI_CFGR_VAL 0x00000000
+#define SMC2_CSR 0xFFFFFF70
+#define SMC2_CSR_VAL 0x00003284 /* 16bit, 2 TDF, 4 WS */
+
+/* clocks */
+#define PLLAR 0xFFFFFC28
+#define PLLAR_VAL 0x20263E04 /* 179.712000 MHz for PCK */
+#define PLLBR 0xFFFFFC2C
+#define PLLBR_VAL 0x10483E0E /* 48.054857 MHz (divider by 2 for USB) */
+#define MCKR 0xFFFFFC30
+#define MCKR_VAL 0x00000202 /* PCK/3 = MCK Master Clock = 59.904000MHz from PLLA */
+
+/* sdram */
+#define PIOC_ASR 0xFFFFF870
+#define PIOC_ASR_VAL 0xFFFF0000 /* Configure PIOC as peripheral (D16/D31) */
+#define PIOC_BSR 0xFFFFF804
+#define PIOC_BSR_VAL 0x00000000
+#define PIOC_PDR 0xFFFFF804
+#define PIOC_PDR_VAL 0xFFFF0000
+#define EBI_CSA 0xFFFFFF60
+#define EBI_CSA_VAL 0x00000002 /* CS1=SDRAM */
+#define SDRC_CR 0xFFFFFF98
+#define SDRC_CR_VAL 0x2188c155
+#define SDRAM 0x20000000 /* address of the SDRAM */
+#define SDRAM1 0x20000080 /* address of the SDRAM */
+#define SDRAM_VAL 0x00000000 /* value written to SDRAM */
+#define SDRC_MR 0xFFFFFF90
+#define SDRC_MR_VAL 0x00000002 /* Precharge All */
+#define SDRC_MR_VAL1 0x00000004 /* refresh */
+#define SDRC_MR_VAL2 0x00000003 /* Load Mode Register */
+#define SDRC_MR_VAL3 0x00000000 /* Normal Mode */
+#define SDRC_TR 0xFFFFFF94
+#define SDRC_TR_VAL 0x000002E0 /* Write refresh rate */
+
+
+_TEXT_BASE:
+	.word	TEXT_BASE
+
+.globl memsetup
+memsetup:
+	/* memory control configuration */
+	/* this isn't very elegant, but  what the heck */
+	ldr     r0, =SMRDATA
+	ldr	r1, _TEXT_BASE
+	sub	r0, r0, r1
+	add     r2, r0, #80
+0:
+	/* the address */
+	ldr     r1, [r0], #4
+	/* the value */
+	ldr     r3, [r0], #4
+	str     r3, [r1]
+	cmp     r2, r0
+	bne     0b
+	/* delay - this is all done by guess */
+	ldr 	r0, =0x00001000
+1:
+	subs    r0, r0, #1              
+	bhi     1b
+	ldr     r0, =SMRDATA1
+	ldr	r1, _TEXT_BASE
+	sub	r0, r0, r1
+	add     r2, r0, #176
+2:
+	/* the address */
+	ldr     r1, [r0], #4
+	/* the value */
+	ldr     r3, [r0], #4
+	str     r3, [r1]
+	cmp     r2, r0
+	bne     2b
+
+	/* everything is fine now */
+	mov	pc, lr
+
+	.ltorg
+
+SMRDATA:
+	.word MC_PUIA
+	.word MC_PUIA_VAL
+	.word MC_PUP
+	.word MC_PUP_VAL
+	.word MC_PUER
+	.word MC_PUER_VAL
+	.word MC_ASR
+	.word MC_ASR_VAL
+	.word MC_AASR
+	.word MC_AASR_VAL
+	.word EBI_CFGR
+	.word EBI_CFGR_VAL
+	.word SMC2_CSR
+	.word SMC2_CSR_VAL
+	.word PLLAR
+	.word PLLAR_VAL
+	.word PLLBR
+	.word PLLBR_VAL
+	.word MCKR
+	.word MCKR_VAL
+	/* SMRDATA is 80 bytes long */
+	/* here there's a delay of 100 */
+SMRDATA1:
+	.word PIOC_ASR
+	.word PIOC_ASR_VAL
+	.word PIOC_BSR
+	.word PIOC_BSR_VAL
+	.word PIOC_PDR
+	.word PIOC_PDR_VAL
+	.word EBI_CSA
+	.word EBI_CSA_VAL
+	.word SDRC_CR
+	.word SDRC_CR_VAL
+	.word SDRC_MR
+	.word SDRC_MR_VAL
+	.word SDRAM
+	.word SDRAM_VAL
+	.word SDRC_MR
+	.word SDRC_MR_VAL1
+	.word SDRAM
+	.word SDRAM_VAL
+	.word SDRAM
+	.word SDRAM_VAL
+	.word SDRAM
+	.word SDRAM_VAL
+	.word SDRAM
+	.word SDRAM_VAL
+	.word SDRAM
+	.word SDRAM_VAL
+	.word SDRAM
+	.word SDRAM_VAL
+	.word SDRAM
+	.word SDRAM_VAL
+	.word SDRAM
+	.word SDRAM_VAL
+	.word SDRC_MR
+	.word SDRC_MR_VAL2
+	.word SDRAM1
+	.word SDRAM_VAL
+	.word SDRC_TR
+	.word SDRC_TR_VAL
+	.word SDRAM
+	.word SDRAM_VAL
+	.word SDRC_MR
+	.word SDRC_MR_VAL3
+	.word SDRAM
+	.word SDRAM_VAL
+	/* SMRDATA1 is 176 bytes long */
+#endif /* CONFIG_BOOTBINFUNC */

board/cmc_pu2/u-boot.lds

@@ -0,0 +1,56 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+/*OUTPUT_FORMAT("elf32-arm", "elf32-arm", "elf32-arm")*/
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text      :
+	{
+	  cpu/at91rm9200/start.o	(.text)
+	  *(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(.rodata) }
+
+	. = ALIGN(4);
+	.data : { *(.data) }
+
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss : { *(.bss) }
+	_end = .;
+}

cpu/at91rm9200/Makefile

@@ -27,7 +27,7 @@ LIB	= lib$(CPU).a
 
 START	= start.o
 OBJS	= serial.o interrupts.o cpu.o \
-	  at91rm9200_ether.o
+	  at91rm9200_ether.o i2c.o
 
 all:	.depend $(START) $(LIB)
 

cpu/at91rm9200/cpu.c

@@ -35,8 +35,8 @@
 #include <asm/io.h>
 #include <asm/arch/hardware.h>
 
-#if !defined(CONFIG_DBGU) && !defined(CONFIG_USART1)
-#error must define one of CONFIG_DBGU or CONFIG_USART1
+#if !defined(CONFIG_DBGU) && !defined(CONFIG_USART0) && !defined(CONFIG_USART1)
+#error must define one of CONFIG_DBGU or CONFIG_USART0 or CONFIG_USART1
 #endif
 
 /* read co-processor 15, register #1 (control register) */
@@ -123,6 +123,9 @@ int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 #ifdef CONFIG_DBGU
    AT91PS_USART us = AT91C_BASE_DBGU;
 #endif
+#ifdef CONFIG_USART0
+   AT91PS_USART us = AT91C_BASE_US0;
+#endif
 #ifdef CONFIG_USART1
    AT91PS_USART us = AT91C_BASE_US1;
 #endif

cpu/at91rm9200/i2c.c

@@ -0,0 +1,192 @@
+/*
+ *  i2c Support for Atmel's AT91RM9200 Two-Wire Interface
+ *
+ *  (c) Rick Bronson
+ *
+ *  Borrowed heavily from original work by:
+ *  Copyright (c) 2000 Philip Edelbrock <phil@stimpy.netroedge.com>
+ *
+ *  Modified to work with u-boot by (C) 2004 Gary Jennejohn garyj@denx.de
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+*/
+#include <common.h>
+
+#ifdef CONFIG_HARD_I2C
+
+#include <i2c.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+
+#include <at91rm9200_i2c.h>
+
+static int debug = 0;
+
+/*
+ * Poll the i2c status register until the specified bit is set.
+ * Returns 0 if timed out (100 msec)
+ */
+static short at91_poll_status(AT91PS_TWI twi, unsigned long bit) {
+	int loop_cntr = 10000;
+	do {
+		udelay(100);
+	} while (!(twi->TWI_SR & bit) && (--loop_cntr > 0));
+
+	return (loop_cntr > 0);
+}
+
+/*
+ * Generic i2c master transfer entrypoint
+ *
+ * rw == 1 means that this is a read
+ */
+static int
+at91_xfer(unsigned char chip, unsigned int addr, int alen,
+						unsigned char *buffer, int len, int rw)
+{
+	AT91PS_TWI twi = (AT91PS_TWI) AT91_TWI_BASE;
+	int length;
+	unsigned char *buf;
+
+	/* Set the TWI Master Mode Register */
+	twi->TWI_MMR = (chip << 16) | (alen << 8)
+		| ((rw == 1) ? AT91C_TWI_MREAD : 0);
+
+	/* Set TWI Internal Address Register with first messages data field */
+	/* only one address byte is supported  */
+	if (alen > 0)
+		twi->TWI_IADR = addr & 0xff;
+
+	length = len;
+	buf = buffer;
+	if (length && buf) {	/* sanity check */
+		if (rw) {
+			twi->TWI_CR = AT91C_TWI_START;
+			while (length--) {
+				if (!length)
+					twi->TWI_CR = AT91C_TWI_STOP;
+				/* Wait until transfer is finished */
+				if (!at91_poll_status(twi, AT91C_TWI_RXRDY)) {
+					if (debug)
+						printf("at91_i2c: timeout 1\n");
+					return 1;
+				}
+				*buf++ = twi->TWI_RHR;
+			}
+			if (!at91_poll_status(twi, AT91C_TWI_TXCOMP)) {
+				if (debug)
+					printf("at91_i2c: timeout 2\n");
+				return 1;
+			}
+		} else {
+			twi->TWI_CR = AT91C_TWI_START;
+			while (length--) {
+				twi->TWI_THR = *buf++;
+				if (!length)
+					twi->TWI_CR = AT91C_TWI_STOP;
+				if (!at91_poll_status(twi, AT91C_TWI_TXRDY)) {
+					if (debug)
+						printf("at91_i2c: timeout 3\n");
+					return 1;
+				}
+			}
+			/* Wait until transfer is finished */
+			if (!at91_poll_status(twi, AT91C_TWI_TXCOMP)) {
+				if (debug)
+					printf("at91_i2c: timeout 4\n");
+				return 1;
+			}
+		}
+	}
+	return 0;
+}
+
+int
+i2c_probe(unsigned char chip)
+{
+	char buffer[1];
+
+	return at91_xfer(chip, 0, 0, buffer, 1, 1);
+}
+
+int
+i2c_read(unsigned char chip, unsigned int addr, int alen,
+							unsigned char *buffer, int len)
+{
+	/* we only allow one address byte */
+	if (alen > 1)
+		return 1;
+#ifdef CFG_I2C_EEPROM_ADDR_OVERFLOW
+	/* XXX assume an ATMEL AT24C16 */
+	if (alen == 1) {
+		chip |= (addr >> 8) & 0xff;
+		addr = addr & 0xff;
+	}
+#endif
+	return at91_xfer(chip, addr, alen, buffer, len, 1);
+}
+
+int
+i2c_write(unsigned char chip, unsigned int addr, int alen,
+							unsigned char *buffer, int len)
+{
+	int i;
+	unsigned char *buf;
+
+	/* we only allow one address byte */
+	if (alen > 1)
+		return 1;
+#ifdef CFG_I2C_EEPROM_ADDR_OVERFLOW
+	/* XXX assume an ATMEL AT24C16 */
+	if (alen == 1) {
+		buf = buffer;
+		/* do single byte writes */
+		for (i = 0; i < len; i++) {
+			chip |= (addr >> 8) & 0xff;
+			addr = addr & 0xff;
+			if (at91_xfer(chip, addr, alen, buf++, 1, 0))
+				return 1;
+		}
+	}
+	return 0;
+#endif
+	return at91_xfer(chip, addr, alen, buffer, len, 0);
+}
+
+/*
+ * Main initialization routine
+ */
+void
+i2c_init(int speed, int slaveaddr)
+{
+	AT91PS_TWI twi = (AT91PS_TWI) AT91_TWI_BASE;
+
+	*AT91C_PIOA_PDR = AT91C_PA25_TWD | AT91C_PA26_TWCK;
+	*AT91C_PIOA_ASR = AT91C_PA25_TWD | AT91C_PA26_TWCK;
+	*AT91C_PIOA_MDER = AT91C_PA25_TWD | AT91C_PA26_TWCK;
+	*AT91C_PMC_PCER = 1 << AT91C_ID_TWI;		/* enable peripheral clock */
+
+	twi->TWI_IDR = 0x3ff;				/* Disable all interrupts */
+	twi->TWI_CR = AT91C_TWI_SWRST;			/* Reset peripheral */
+	twi->TWI_CR = AT91C_TWI_MSEN | AT91C_TWI_SVDIS;	/* Set Master mode */
+
+	/* Here, CKDIV = 1 and CHDIV=CLDIV  ==> CLDIV = CHDIV = 1/4*((Fmclk/FTWI) -6) */
+	twi->TWI_CWGR = AT91C_TWI_CKDIV1 | AT91C_TWI_CLDIV3 | (AT91C_TWI_CLDIV3 << 8);
+
+	printf("Found AT91 i2c\n");
+	return;
+}
+#endif /* CONFIG_HARD_I2C */

cpu/at91rm9200/serial.c

@@ -33,14 +33,17 @@
 #include <asm/io.h>
 #include <asm/arch/hardware.h>
 
-#if !defined(CONFIG_DBGU) && !defined(CONFIG_USART1)
-#error must define one of CONFIG_DBGU or CONFIG_USART1
+#if !defined(CONFIG_DBGU) && !defined(CONFIG_USART0) && !defined(CONFIG_USART1)
+#error must define one of CONFIG_DBGU or CONFIG_USART0 or CONFIG_USART1
 #endif
 
 /* ggi thunder */
 #ifdef CONFIG_DBGU
 AT91PS_USART us = (AT91PS_USART) AT91C_BASE_DBGU;
 #endif
+#ifdef CONFIG_USART0
+AT91PS_USART us = (AT91PS_USART) AT91C_BASE_US0;
+#endif
 #ifdef CONFIG_USART1
 AT91PS_USART us = (AT91PS_USART) AT91C_BASE_US1;
 #endif
@@ -50,9 +53,19 @@ void serial_setbrg (void)
 	DECLARE_GLOBAL_DATA_PTR;
 	int baudrate;
 
-	if ((baudrate = gd->bd->bi_baudrate) <= 0)
+	if ((baudrate = gd->baudrate) <= 0)
 		baudrate = CONFIG_BAUDRATE;
-	us->US_BRGR = CFG_AT91C_BRGR_DIVISOR;	/* hardcode so no __divsi3 */
+	if (baudrate == CONFIG_BAUDRATE) {
+		us->US_BRGR = CFG_AT91C_BRGR_DIVISOR;	/* hardcode so no __divsi3 */
+	} else {
+#if 0
+		/* 33 -> 115200 */
+		us->US_BRGR = 33 * (115200/baudrate);
+#else
+		/* MASTER_CLOCK/(16 * baudrate) */
+		us->US_BRGR = (AT91C_MASTER_CLOCK >> 4)/baudrate;
+#endif
+	}
 }
 
 int serial_init (void)
@@ -62,6 +75,10 @@ int serial_init (void)
 	*AT91C_PIOA_PDR = AT91C_PA31_DTXD | AT91C_PA30_DRXD;	/* PA 31 & 30 */
 	*AT91C_PMC_PCER = 1 << AT91C_ID_SYS;	/* enable clock */
 #endif
+#ifdef CONFIG_USART0
+	*AT91C_PIOA_PDR = AT91C_PA17_TXD0 | AT91C_PA18_RXD0;
+	*AT91C_PMC_PCER |= 1 << AT91C_ID_USART0;	/* enable clock */
+#endif
 #ifdef CONFIG_USART1
 	*AT91C_PIOB_PDR = AT91C_PB21_TXD1 | AT91C_PB20_RXD1;
 	*AT91C_PMC_PCER |= 1 << AT91C_ID_USART1;	/* enable clock */

include/asm-arm/arch-at91rm9200/AT91RM9200.h

@@ -446,7 +446,35 @@ typedef struct _AT91S_PDC {
 /* ========== Register definition ==================================== */
 #define AT91C_SPI_CSR   ((AT91_REG *) 	0xFFFE0030) /* (SPI) Chip Select Register */
 #define AT91C_PMC_PCER  ((AT91_REG *) 	0xFFFFFC10) /* (PMC) Peripheral Clock Enable Register */
+#define AT91C_PIOA_PER  ((AT91_REG *) 	0xFFFFF400) /* (PIOA) PIO Enable Register */
 #define AT91C_PIOA_PDR  ((AT91_REG *) 	0xFFFFF404) /* (PIOA) PIO Disable Register */
+#define AT91C_PIOA_PSR  ((AT91_REG *) 	0xFFFFF408) /* (PIOA) PIO Status Register */
+#define AT91C_PIOA_OER  ((AT91_REG *) 	0xFFFFF410) /* (PIOA) PIO Output Enable Register */
+#define AT91C_PIOA_ODR  ((AT91_REG *) 	0xFFFFF414) /* (PIOA) PIO Output Disable Register */
+#define AT91C_PIOA_OSR  ((AT91_REG *) 	0xFFFFF418) /* (PIOA) PIO Output Status Register */
+#define AT91C_PIOA_IFER  ((AT91_REG *) 	0xFFFFF420) /* (PIOA) PIO Glitch Input Filter Enable Register */
+#define AT91C_PIOA_IFDR  ((AT91_REG *) 	0xFFFFF424) /* (PIOA) PIO Glitch Input Filter Disable Register */
+#define AT91C_PIOA_IFSR  ((AT91_REG *) 	0xFFFFF428) /* (PIOA) PIO Glitch Input Filter Status Register */
+#define AT91C_PIOA_SODR  ((AT91_REG *) 	0xFFFFF430) /* (PIOA) PIO Set Output Data Register */
+#define AT91C_PIOA_CODR  ((AT91_REG *) 	0xFFFFF434) /* (PIOA) PIO Clear Output Data Register */
+#define AT91C_PIOA_ODSR  ((AT91_REG *) 	0xFFFFF438) /* (PIOA) PIO Output Data Status Register */
+#define AT91C_PIOA_PDSR  ((AT91_REG *) 	0xFFFFF43C) /* (PIOA) PIO Pin Data Status Register */
+#define AT91C_PIOA_IER  ((AT91_REG *) 	0xFFFFF440) /* (PIOA) PIO Interrupt Enable Register */
+#define AT91C_PIOA_IDR  ((AT91_REG *) 	0xFFFFF444) /* (PIOA) PIO Interrupt Disable Register */
+#define AT91C_PIOA_IMR  ((AT91_REG *) 	0xFFFFF448) /* (PIOA) PIO Interrupt Mask Register */
+#define AT91C_PIOA_ISR  ((AT91_REG *) 	0xFFFFF44C) /* (PIOA) PIO Interrupt Status Register */
+#define AT91C_PIOA_MDER  ((AT91_REG *) 	0xFFFFF450) /* (PIOA) PIO Multi-drive Enable Register */
+#define AT91C_PIOA_MDDR  ((AT91_REG *) 	0xFFFFF454) /* (PIOA) PIO Multi-drive Disable Register */
+#define AT91C_PIOA_MDSR  ((AT91_REG *) 	0xFFFFF458) /* (PIOA) PIO Multi-drive Status Register */
+#define AT91C_PIOA_PUDR  ((AT91_REG *) 	0xFFFFF460) /* (PIOA) PIO Pull-up Disable Register */
+#define AT91C_PIOA_PUER  ((AT91_REG *) 	0xFFFFF464) /* (PIOA) PIO Pull-up Enable Register */
+#define AT91C_PIOA_PUSR  ((AT91_REG *) 	0xFFFFF468) /* (PIOA) PIO Pull-up Status Register */
+#define AT91C_PIOA_ASR  ((AT91_REG *) 	0xFFFFF470) /* (PIOA) PIO Peripheral A Select Register */
+#define AT91C_PIOA_BSR  ((AT91_REG *) 	0xFFFFF474) /* (PIOA) PIO Peripheral B Select Register */
+#define AT91C_PIOA_ABSR  ((AT91_REG *) 	0xFFFFF478) /* (PIOA) PIO Peripheral AB Select Register */
+#define AT91C_PIOA_OWER  ((AT91_REG *) 	0xFFFFF4A0) /* (PIOA) PIO Output Write Enable Register */
+#define AT91C_PIOA_OWDR  ((AT91_REG *) 	0xFFFFF4A4) /* (PIOA) PIO Output Write Disable Register */
+#define AT91C_PIOA_OWSR  ((AT91_REG *) 	0xFFFFF4A8) /* (PIOA) PIO Output Write Status Register */
 #define AT91C_PIOB_PDR  ((AT91_REG *) 	0xFFFFF604) /* (PIOB) PIO Disable Register */
 
 #define AT91C_PIO_PA30       ((unsigned int) 1 << 30) /* Pin Controlled by PA30 */
@@ -454,19 +482,28 @@ typedef struct _AT91S_PDC {
 #define AT91C_PC0_BFCK     ((unsigned int) AT91C_PIO_PC0) /*  Burst Flash Clock */
 #define AT91C_PA30_DRXD     ((unsigned int) AT91C_PIO_PA30) /*  DBGU Debug Receive Data */
 #define AT91C_PIO_PA31       ((unsigned int) 1 << 31) /* Pin Controlled by PA31 */
+#define AT91C_PA25_TWD		((unsigned int) 1 << 25)
+#define AT91C_PA26_TWCK		((unsigned int) 1 << 26)
 #define AT91C_PA31_DTXD     ((unsigned int) AT91C_PIO_PA31) /*  DBGU Debug Transmit Data */
+#define AT91C_PIO_PA17       ((unsigned int) 1 << 17) /* Pin Controlled by PA17 */
+#define AT91C_PA17_TXD0     AT91C_PIO_PA17 /*  USART0 Transmit Data */
+#define AT91C_PIO_PA18       ((unsigned int) 1 << 18) /* Pin Controlled by PA18 */
+#define AT91C_PA18_RXD0     AT91C_PIO_PA18 /*  USART0 Receive Data */
 #define AT91C_PIO_PB20       ((unsigned int) 1 << 20) /* Pin Controlled by PB20 */
-#define AT91C_PB20_RXD1     ((unsigned int) AT91C_PIO_PB20) /*  USART1 Receive Data */
+#define AT91C_PB20_RXD1     AT91C_PIO_PB20 /*  USART1 Receive Data */
 #define AT91C_PIO_PB21       ((unsigned int) 1 << 21) /* Pin Controlled by PB21 */
-#define AT91C_PB21_TXD1     ((unsigned int) AT91C_PIO_PB21) /*  USART1 Transmit Data */
-
-#define AT91C_ID_SYS    ((unsigned int)  1) /* System Peripheral */
+#define AT91C_PB21_TXD1     AT91C_PIO_PB21 /*  USART1 Transmit Data */
+
+#define AT91C_ID_SYS    ((unsigned int) 1) /* System Peripheral */
+#define AT91C_ID_PIOA	((unsigned int) 2)	/* PIO port A */
+#define AT91C_ID_PIOB	((unsigned int) 3)	/* PIO port B */
+#define AT91C_ID_PIOC	((unsigned int) 4)	/* PIO port C */
+#define AT91C_ID_USART0	((unsigned int) 6)	/* USART 0 */
+#define AT91C_ID_USART1	((unsigned int) 7)	/* USART 1 */
+#define AT91C_ID_TWI    ((unsigned int) 12) /* Two Wire Interface */
+#define AT91C_ID_SPI    ((unsigned int) 13) /* Serial Peripheral Interface */
 #define AT91C_ID_TC0    ((unsigned int) 17) /* Timer Counter 0 */
 #define AT91C_ID_EMAC   ((unsigned int) 24) /* Ethernet MAC */
-#define AT91C_ID_SPI    ((unsigned int) 13) /* Serial Peripheral Interface */
-#define AT91C_ID_PIOB	((unsigned int) 3)
-#define AT91C_ID_PIOC	((unsigned int) 4)
-#define AT91C_ID_USART1	((unsigned int) 7)
 
 #define AT91C_PIO_PC1        ((unsigned int) 1 <<  1) /* Pin Controlled by PC1 */
 #define AT91C_PC1_BFRDY_SMOE ((unsigned int) AT91C_PIO_PC1) /*  Burst Flash Ready */
@@ -561,11 +598,14 @@ typedef struct _AT91S_PDC {
 #define AT91C_BASE_EMAC      ((AT91PS_EMAC) 	0xFFFBC000) /* (EMAC) Base Address */
 #define AT91C_BASE_PMC       ((AT91PS_PMC) 	0xFFFFFC00) /* (PMC) Base Address */
 #define AT91C_BASE_TC0       ((AT91PS_TC) 	0xFFFA0000) /* (TC0) Base Address */
-#define AT91C_BASE_DBGU      ((AT91PS_DBGU) 	0xFFFFF200) /* (DBGU) Base Address */
+#define AT91C_BASE_DBGU      ((AT91PS_DBGU)	0xFFFFF200) /* (DBGU) Base Address */
+#define AT91C_BASE_CKGR      ((AT91PS_CKGR) 0xFFFFFC20) /* (CKGR) Base Address */
+#define AT91C_BASE_PIOC      ((AT91PS_PIO) 	0xFFFFF800) /* (PIOC) Base Address */
 #define AT91C_BASE_PIOB      ((AT91PS_PIO) 	0xFFFFF600) /* (PIOB) Base Address */
 #define AT91C_BASE_PIOA      ((AT91PS_PIO) 	0xFFFFF400) /* (PIOA) Base Address */
 #define AT91C_EBI_CSA   ((AT91_REG *) 	0xFFFFFF60) /* (EBI) Chip Select Assignment Register */
 #define AT91C_BASE_SMC2      ((AT91PS_SMC2) 	0xFFFFFF70) /* (SMC2) Base Address */
+#define AT91C_BASE_US0       ((AT91PS_USART) 	0xFFFC0000) /* (US0) Base Address */
 #define AT91C_BASE_US1       ((AT91PS_USART) 	0xFFFC4000) /* (US1) Base Address */
 #define AT91C_TCB0_BMR  ((AT91_REG *) 	0xFFFA00C4) /* (TCB0) TC Block Mode Register */
 #define AT91C_TCB0_BCR  ((AT91_REG *) 	0xFFFA00C0) /* (TCB0) TC Block Control Register */

include/at91rm9200_i2c.h

@@ -0,0 +1,126 @@
+// ----------------------------------------------------------------------------
+//          ATMEL Microcontroller Software Support  -  ROUSSET  -
+// ----------------------------------------------------------------------------
+//  The software is delivered "AS IS" without warranty or condition of any
+//  kind, either express, implied or statutory. This includes without
+//  limitation any warranty or condition with respect to merchantability or
+//  fitness for any particular purpose, or against the infringements of
+//  intellectual property rights of others.
+// ----------------------------------------------------------------------------
+// File Name           : at91rm9200_i2c.h
+// Object              : AT91RM9200 / TWI definitions
+// Generated           : AT91 SW Application Group  12/03/2002 (10:48:02)
+//
+// ----------------------------------------------------------------------------
+
+#ifndef AT91RM9200_TWI_H
+#define AT91RM9200_TWI_H
+
+// *****************************************************************************
+//              SOFTWARE API DEFINITION  FOR Two-wire Interface
+// *****************************************************************************
+#ifndef __ASSEMBLY__
+
+typedef struct _AT91S_TWI {
+	AT91_REG	 TWI_CR; 	// Control Register
+	AT91_REG	 TWI_MMR; 	// Master Mode Register
+	AT91_REG	 TWI_SMR; 	// Slave Mode Register
+	AT91_REG	 TWI_IADR; 	// Internal Address Register
+	AT91_REG	 TWI_CWGR; 	// Clock Waveform Generator Register
+	AT91_REG	 Reserved0[3]; 	//
+	AT91_REG	 TWI_SR; 	// Status Register
+	AT91_REG	 TWI_IER; 	// Interrupt Enable Register
+	AT91_REG	 TWI_IDR; 	// Interrupt Disable Register
+	AT91_REG	 TWI_IMR; 	// Interrupt Mask Register
+	AT91_REG	 TWI_RHR; 	// Receive Holding Register
+	AT91_REG	 TWI_THR; 	// Transmit Holding Register
+	AT91_REG	 Reserved1[50]; 	//
+	AT91_REG	 TWI_RPR; 	// Receive Pointer Register
+	AT91_REG	 TWI_RCR; 	// Receive Counter Register
+	AT91_REG	 TWI_TPR; 	// Transmit Pointer Register
+	AT91_REG	 TWI_TCR; 	// Transmit Counter Register
+	AT91_REG	 TWI_RNPR; 	// Receive Next Pointer Register
+	AT91_REG	 TWI_RNCR; 	// Receive Next Counter Register
+	AT91_REG	 TWI_TNPR; 	// Transmit Next Pointer Register
+	AT91_REG	 TWI_TNCR; 	// Transmit Next Counter Register
+	AT91_REG	 TWI_PTCR; 	// PDC Transfer Control Register
+	AT91_REG	 TWI_PTSR; 	// PDC Transfer Status Register
+} AT91S_TWI, *AT91PS_TWI;
+
+#endif
+
+// -------- TWI_CR : (TWI Offset: 0x0) TWI Control Register --------
+#define AT91C_TWI_START       ( 0x1 <<  0) // (TWI) Send a START Condition
+#define AT91C_TWI_STOP        ( 0x1 <<  1) // (TWI) Send a STOP Condition
+#define AT91C_TWI_MSEN        ( 0x1 <<  2) // (TWI) TWI Master Transfer Enabled
+#define AT91C_TWI_MSDIS       ( 0x1 <<  3) // (TWI) TWI Master Transfer Disabled
+#define AT91C_TWI_SVEN        ( 0x1 <<  4) // (TWI) TWI Slave Transfer Enabled
+#define AT91C_TWI_SVDIS       ( 0x1 <<  5) // (TWI) TWI Slave Transfer Disabled
+#define AT91C_TWI_SWRST       ( 0x1 <<  7) // (TWI) Software Reset
+// -------- TWI_MMR : (TWI Offset: 0x4) TWI Master Mode Register --------
+#define AT91C_TWI_IADRSZ      ( 0x3 <<  8) // (TWI) Internal Device Address Size
+#define 	AT91C_TWI_IADRSZ_NO                   ( 0x0 <<  8) // (TWI) No internal device address
+#define 	AT91C_TWI_IADRSZ_1_BYTE               ( 0x1 <<  8) // (TWI) One-byte internal device address
+#define 	AT91C_TWI_IADRSZ_2_BYTE               ( 0x2 <<  8) // (TWI) Two-byte internal device address
+#define 	AT91C_TWI_IADRSZ_3_BYTE               ( 0x3 <<  8) // (TWI) Three-byte internal device address
+#define AT91C_TWI_MREAD       ( 0x1 << 12) // (TWI) Master Read Direction
+#define AT91C_TWI_DADR        ( 0x7F <<  6) // (TWI) Device Address
+// -------- TWI_SMR : (TWI Offset: 0x8) TWI Slave Mode Register --------
+#define AT91C_TWI_SADR        ( 0x7F << 16) // (TWI) Slave Device Address
+// -------- TWI_CWGR : (TWI Offset: 0x10) TWI Clock Waveform Generator Register --------
+#define AT91C_TWI_CLDIV       ( 0xFF <<  0) // (TWI) Clock Low Divider
+#define AT91C_TWI_CHDIV       ( 0xFF <<  8) // (TWI) Clock High Divider
+#define AT91C_TWI_CKDIV       ( 0x7 << 16) // (TWI) Clock Divider
+// -------- TWI_SR : (TWI Offset: 0x20) TWI Status Register --------
+#define AT91C_TWI_TXCOMP      ( 0x1 <<  0) // (TWI) Transmission Completed
+#define AT91C_TWI_RXRDY       ( 0x1 <<  1) // (TWI) Receive holding register ReaDY
+#define AT91C_TWI_TXRDY       ( 0x1 <<  2) // (TWI) Transmit holding register ReaDY
+#define AT91C_TWI_SVREAD      ( 0x1 <<  3) // (TWI) Slave Read
+#define AT91C_TWI_SVACC       ( 0x1 <<  4) // (TWI) Slave Access
+#define AT91C_TWI_GCACC       ( 0x1 <<  5) // (TWI) General Call Access
+#define AT91C_TWI_OVRE        ( 0x1 <<  6) // (TWI) Overrun Error
+#define AT91C_TWI_UNRE        ( 0x1 <<  7) // (TWI) Underrun Error
+#define AT91C_TWI_NACK        ( 0x1 <<  8) // (TWI) Not Acknowledged
+#define AT91C_TWI_ARBLST      ( 0x1 <<  9) // (TWI) Arbitration Lost
+// -------- TWI_IER : (TWI Offset: 0x24) TWI Interrupt Enable Register --------
+// -------- TWI_IDR : (TWI Offset: 0x28) TWI Interrupt Disable Register --------
+// -------- TWI_IMR : (TWI Offset: 0x2c) TWI Interrupt Mask Register --------
+
+/*
+    i2c Support for Atmel's AT91RM9200 Two-Wire Interface
+
+    (c) Rick Bronson
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef AT91_I2C_H
+#define AT91_I2C_H
+
+#define AT91C_TWI_CLOCK		100000
+#define AT91C_TWI_SCLOCK	(10 * AT91C_MASTER_CLOCK / AT91C_TWI_CLOCK)
+#define AT91C_TWI_CKDIV1	(2 << 16)	/* TWI clock divider.  NOTE: see Errata #22 */
+
+#if (AT91C_TWI_SCLOCK % 10) >= 5
+#define AT91C_TWI_CLDIV2 ((AT91C_TWI_SCLOCK / 10) - 5)
+#else
+#define AT91C_TWI_CLDIV2 ((AT91C_TWI_SCLOCK / 10) - 6)
+#endif
+#define AT91C_TWI_CLDIV3 ((AT91C_TWI_CLDIV2 + (4 - AT91C_TWI_CLDIV2 % 4)) >> 2)
+
+#define AT91C_EEPROM_I2C_ADDRESS        (0x50 << 16)
+
+#endif
+#endif

include/configs/cmc_pu2.h

@@ -0,0 +1,225 @@
+/*
+ * Rick Bronson <rick@efn.org>
+ *
+ * Configuation settings for the AT91RM9200DK board.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * If we are developing, we might want to start armboot from ram
+ * so we MUST NOT initialize critical regs like mem-timing ...
+ */
+#define CONFIG_INIT_CRITICAL		/* undef for developing */
+
+/* ARM asynchronous clock */
+#define AT91C_MAIN_CLOCK	179712000	/* from 18.432 MHz crystal (18432000 / 4 * 39) */
+#define AT91C_MASTER_CLOCK	59904000	/* peripheral clock (AT91C_MASTER_CLOCK / 3) */
+/* #define AT91C_MASTER_CLOCK	44928000 */	/* peripheral clock (AT91C_MASTER_CLOCK / 4) */
+
+#define AT91_SLOW_CLOCK		32768	/* slow clock */
+
+#define CONFIG_AT91RM9200DK	1	/* on an AT91RM9200DK Board	 */
+#define CONFIG_CMC_PU2	1		/* on an CMC_PU2 Board	 */
+#undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff */
+#define CONFIG_CMDLINE_TAG	1	/* enable passing of ATAGs	*/
+#define CONFIG_SETUP_MEMORY_TAGS 1
+#define CONFIG_INITRD_TAG	1
+
+/* define this to include the functionality of boot.bin in u-boot */
+#undef CONFIG_BOOTBINFUNC
+
+/*
+ * Size of malloc() pool
+ */
+#define CFG_MALLOC_LEN	(CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE	128	/* size in bytes reserved for initial data */
+
+#define CONFIG_BAUDRATE 9600
+
+#define CFG_AT91C_BRGR_DIVISOR	390	/* hardcode so no __divsi3 : AT91C_MASTER_CLOCK /(baudrate * 16) */
+
+/*
+ * Hardware drivers
+ */
+
+/* define one of these to choose the DBGU, USART0  or USART1 as console */
+#undef CONFIG_DBGU
+#undef CONFIG_USART0
+#define CONFIG_USART1
+
+#undef	CONFIG_HWFLOW			/* don't include RTS/CTS flow control support	*/
+
+#undef	CONFIG_MODEM_SUPPORT		/* disable modem initialization stuff */
+
+#define CONFIG_HARD_I2C
+
+#ifdef CONFIG_HARD_I2C
+#define CFG_I2C_SPEED 0 /* not used */
+#define CFG_I2C_SLAVE 0 /* not used */
+#define CONFIG_RTC_RS5C372A	/* RICOH I2C RTC */
+#define CFG_I2C_RTC_ADDR 0x32
+#define CFG_I2C_EEPROM_ADDR 0x50
+#define CFG_I2C_EEPROM_ADDR_LEN 1
+#define CFG_I2C_EEPROM_ADDR_OVERFLOW
+#endif
+
+#define CONFIG_BOOTDELAY      3
+/* #define CONFIG_ENV_OVERWRITE	1 */
+
+#ifdef CONFIG_HARD_I2C
+#define CONFIG_COMMANDS		\
+		       ((CONFIG_CMD_DFL | \
+			CFG_CMD_I2C | \
+			CFG_CMD_EEPROM | \
+			CFG_CMD_DHCP ) & \
+		      ~(CFG_CMD_BDI | \
+			CFG_CMD_IMI | \
+			CFG_CMD_AUTOSCRIPT | \
+			CFG_CMD_FPGA | \
+			CFG_CMD_MISC | \
+			CFG_CMD_LOADS ))
+#else
+#define CONFIG_COMMANDS		\
+		       ((CONFIG_CMD_DFL | \
+			CFG_CMD_DHCP ) & \
+		      ~(CFG_CMD_BDI | \
+			CFG_CMD_IMI | \
+			CFG_CMD_AUTOSCRIPT | \
+			CFG_CMD_FPGA | \
+			CFG_CMD_MISC | \
+			CFG_CMD_LOADS ))
+#endif
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+#define CFG_MAX_NAND_DEVICE	1	/* Max number of NAND devices		*/
+#define SECTORSIZE 512
+
+#define ADDR_COLUMN 1
+#define ADDR_PAGE 2
+#define ADDR_COLUMN_PAGE 3
+
+#define NAND_ChipID_UNKNOWN	0x00
+#define NAND_MAX_FLOORS 1
+#define NAND_MAX_CHIPS 1
+
+#define AT91_SMART_MEDIA_ALE (1 << 22)	/* our ALE is AD22 */
+#define AT91_SMART_MEDIA_CLE (1 << 21)	/* our CLE is AD21 */
+
+#define NAND_DISABLE_CE(nand) do { *AT91C_PIOC_SODR = AT91C_PIO_PC0;} while(0)
+#define NAND_ENABLE_CE(nand) do { *AT91C_PIOC_CODR = AT91C_PIO_PC0;} while(0)
+
+#define NAND_WAIT_READY(nand) while (!(*AT91C_PIOC_PDSR & AT91C_PIO_PC2))
+
+#define WRITE_NAND_COMMAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_CLE) = (__u8)(d); } while(0)
+#define WRITE_NAND_ADDRESS(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_ALE) = (__u8)(d); } while(0)
+#define WRITE_NAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr) = (__u8)d; } while(0)
+#define READ_NAND(adr) ((volatile unsigned char)(*(volatile __u8 *)(unsigned long)adr))
+/* the following are NOP's in our implementation */
+#define NAND_CTL_CLRALE(nandptr)
+#define NAND_CTL_SETALE(nandptr)
+#define NAND_CTL_CLRCLE(nandptr)
+#define NAND_CTL_SETCLE(nandptr)
+
+#define CONFIG_NR_DRAM_BANKS 1
+#define PHYS_SDRAM 0x20000000
+#define PHYS_SDRAM_SIZE 0x2000000  /* 32 megs */
+
+#define CFG_MEMTEST_START		PHYS_SDRAM
+#define CFG_MEMTEST_END			CFG_MEMTEST_START + PHYS_SDRAM_SIZE - 262144
+
+#define CONFIG_DRIVER_ETHER
+#define CONFIG_NET_RETRY_COUNT		20
+#define CONFIG_AT91C_USE_RMII
+
+#define CONFIG_HAS_DATAFLASH		1
+#define CFG_SPI_WRITE_TOUT		(5*CFG_HZ)
+#define CFG_MAX_DATAFLASH_BANKS 	2
+#define CFG_MAX_DATAFLASH_PAGES 	16384
+#define CFG_DATAFLASH_LOGIC_ADDR_CS0	0xC0000000	/* Logical adress for CS0 */
+#define CFG_DATAFLASH_LOGIC_ADDR_CS3	0xD0000000	/* Logical adress for CS3 */
+
+#define PHYS_FLASH_1			0x10000000
+#define PHYS_FLASH_SIZE			0x200000  /* 2 megs main flash */
+#define CFG_FLASH_BASE			PHYS_FLASH_1
+#define CFG_MAX_FLASH_BANKS		1
+#define CFG_MAX_FLASH_SECT		256
+#define CFG_FLASH_ERASE_TOUT		(2*CFG_HZ) /* Timeout for Flash Erase */
+#define CFG_FLASH_WRITE_TOUT		(2*CFG_HZ) /* Timeout for Flash Write */
+
+#undef	CFG_ENV_IS_IN_DATAFLASH
+
+#ifdef CFG_ENV_IS_IN_DATAFLASH
+#define CFG_ENV_OFFSET			0x20000
+#define CFG_ENV_ADDR			(CFG_DATAFLASH_LOGIC_ADDR_CS0 + CFG_ENV_OFFSET)
+#define CFG_ENV_SIZE			0x2000  /* 0x8000 */
+#else
+#define CFG_ENV_IS_IN_FLASH		1
+#define CFG_ENV_ADDR			(PHYS_FLASH_1 + 0xe000)  /* 0x10000 */
+#define CFG_ENV_SIZE			0x2000  /* 0x8000 */
+#endif
+
+
+#define CFG_LOAD_ADDR		0x21000000  /* default load address */
+
+#define CFG_BOOT_SIZE		0x6000 /* 24 KBytes */
+#define CFG_U_BOOT_BASE		(PHYS_FLASH_1 + 0x10000)
+#define CFG_U_BOOT_SIZE		0x10000 /* 64 KBytes */
+
+#define CFG_BAUDRATE_TABLE	{115200 , 19200, 38400, 57600, 9600 }
+
+#define CFG_PROMPT		"U-Boot> "	/* Monitor Command Prompt */
+#define CFG_CBSIZE		256		/* Console I/O Buffer Size */
+#define CFG_MAXARGS		16		/* max number of command args */
+#define CFG_PBSIZE		(CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
+
+#ifndef __ASSEMBLY__
+/*-----------------------------------------------------------------------
+ * Board specific extension for bd_info
+ *
+ * This structure is embedded in the global bd_info (bd_t) structure
+ * and can be used by the board specific code (eg board/...)
+ */
+
+struct bd_info_ext {
+	/* helper variable for board environment handling
+	 *
+	 * env_crc_valid == 0    =>   uninitialised
+	 * env_crc_valid  > 0    =>   environment crc in flash is valid
+	 * env_crc_valid  < 0    =>   environment crc in flash is invalid
+	 */
+	int env_crc_valid;
+};
+#endif
+
+#define CFG_HZ AT91C_MASTER_CLOCK/2	/* AT91C_TC0_CMR is implicitly set to */
+					/* AT91C_TC_TIMER_DIV1_CLOCK */
+
+#define CONFIG_STACKSIZE	(32*1024)	/* regular stack */
+
+#ifdef CONFIG_USE_IRQ
+#error CONFIG_USE_IRQ not supported
+#endif
+
+#endif