add new dfboot loader - a complete revison of romboot code.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7492 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 208 insertions, 0 deletions

diff --git a/target/linux/at91-2.6/image/dfboot/src/dataflash.c b/target/linux/at91-2.6/image/dfboot/src/dataflash.c
new file mode 100644
index 0000000000..5e54460b72
--- /dev/null
+++ b/target/linux/at91-2.6/image/dfboot/src/dataflash.c
@@ -0,0 +1,208 @@
+/*----------------------------------------------------------------------------
+ *         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           : dataflash.c
+ * Object              : High level functions for the dataflash
+ * Creation            : HIi   10/10/2003
+ *----------------------------------------------------------------------------
+ */
+#include "config.h"
+#include "stdio.h"
+#include "dataflash.h"
+
+
+AT91S_DATAFLASH_INFO dataflash_info[CFG_MAX_DATAFLASH_BANKS];
+static AT91S_DataFlash DataFlashInst;
+
+int cs[][CFG_MAX_DATAFLASH_BANKS] = {
+	{CFG_DATAFLASH_LOGIC_ADDR_CS0, 0},	/* Logical adress, CS */
+	{CFG_DATAFLASH_LOGIC_ADDR_CS3, 3}
+};
+
+int AT91F_DataflashInit(void)
+{
+	int i;
+	int dfcode;
+	int Nb_device = 0;
+		
+	AT91F_SpiInit();
+
+	for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
+		dataflash_info[i].id = 0;
+		dataflash_info[i].Device.pages_number = 0;
+		dfcode = AT91F_DataflashProbe (cs[i][1], &dataflash_info[i].Desc);
+
+		switch (dfcode) {
+		case AT45DB161:
+			dataflash_info[i].Device.pages_number = 4096;
+			dataflash_info[i].Device.pages_size = 528;
+			dataflash_info[i].Device.page_offset = 10;
+			dataflash_info[i].Device.byte_mask = 0x300;
+			dataflash_info[i].Device.cs = cs[i][1];
+			dataflash_info[i].Desc.DataFlash_state = IDLE;
+			dataflash_info[i].logical_address = cs[i][0];
+			dataflash_info[i].id = dfcode;
+			Nb_device++;
+			break;
+
+		case AT45DB321:
+			dataflash_info[i].Device.pages_number = 8192;
+			dataflash_info[i].Device.pages_size = 528;
+			dataflash_info[i].Device.page_offset = 10;
+			dataflash_info[i].Device.byte_mask = 0x300;
+			dataflash_info[i].Device.cs = cs[i][1];
+			dataflash_info[i].Desc.DataFlash_state = IDLE;
+			dataflash_info[i].logical_address = cs[i][0];
+			dataflash_info[i].id = dfcode;
+			Nb_device++;
+			break;
+
+		case AT45DB642:
+			dataflash_info[i].Device.pages_number = 8192;
+			dataflash_info[i].Device.pages_size = 1056;
+			dataflash_info[i].Device.page_offset = 11;
+			dataflash_info[i].Device.byte_mask = 0x700;
+			dataflash_info[i].Device.cs = cs[i][1];
+			dataflash_info[i].Desc.DataFlash_state = IDLE;
+			dataflash_info[i].logical_address = cs[i][0];
+			dataflash_info[i].id = dfcode;
+			Nb_device++;
+			break;
+		case AT45DB128:
+			dataflash_info[i].Device.pages_number = 16384;
+			dataflash_info[i].Device.pages_size = 1056;
+			dataflash_info[i].Device.page_offset = 11;
+			dataflash_info[i].Device.byte_mask = 0x700;
+			dataflash_info[i].Device.cs = cs[i][1];
+			dataflash_info[i].Desc.DataFlash_state = IDLE;
+			dataflash_info[i].logical_address = cs[i][0];
+			dataflash_info[i].id = dfcode;
+			Nb_device++;
+			break;
+		default:
+			break;
+		}
+	}			
+	return (Nb_device);
+}
+
+
+void AT91F_DataflashPrintInfo(void)
+{
+	int i;
+	for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++) {
+		if (dataflash_info[i].id != 0) {
+			printf ("DF:AT45DB");
+			switch (dataflash_info[i].id) {
+			case AT45DB161:
+				printf ("161");
+				break;
+
+			case AT45DB321:
+				printf ("321");
+				break;
+
+			case AT45DB642:
+				printf ("642");
+				break;
+			case AT45DB128:				
+				printf ("128");
+				break;
+			}
+
+			printf ("\n# PG: %6d\n"
+				"PG SZ: %6d\n"
+				"SZ=%8d bytes\n"
+				"ADDR: %08X\n",
+				(unsigned int) dataflash_info[i].Device.pages_number,
+				(unsigned int) dataflash_info[i].Device.pages_size,
+				(unsigned int) dataflash_info[i].Device.pages_number *
+				dataflash_info[i].Device.pages_size,
+				(unsigned int) dataflash_info[i].logical_address);
+		}
+	}
+}
+
+
+/*------------------------------------------------------------------------------*/
+/* Function Name       : AT91F_DataflashSelect                                  */
+/* Object              : Select the correct device                              */
+/*------------------------------------------------------------------------------*/
+static AT91PS_DataFlash AT91F_DataflashSelect(AT91PS_DataFlash pFlash,
+                                              unsigned int *addr)
+{
+	char addr_valid = 0;
+	int i;
+
+	for (i = 0; i < CFG_MAX_DATAFLASH_BANKS; i++)
+		if ((*addr & 0xFF000000) == dataflash_info[i].logical_address) {
+			addr_valid = 1;
+			break;
+		}
+	if (!addr_valid) {
+		pFlash = (AT91PS_DataFlash) 0;
+		return pFlash;
+	}
+	pFlash->pDataFlashDesc = &(dataflash_info[i].Desc);
+	pFlash->pDevice = &(dataflash_info[i].Device);
+	*addr -= dataflash_info[i].logical_address;
+	return (pFlash);
+}
+
+
+/*------------------------------------------------------------------------------*/
+/* Function Name       : read_dataflash                                         */
+/* Object              : dataflash memory read                                  */
+/*------------------------------------------------------------------------------*/
+int read_dataflash(unsigned long addr, unsigned long size, char *result)
+{
+	unsigned int AddrToRead = addr;
+	AT91PS_DataFlash pFlash = &DataFlashInst;
+
+	pFlash = AT91F_DataflashSelect (pFlash, &AddrToRead);
+	if (pFlash == 0)
+		return -1;
+
+	return (AT91F_DataFlashRead(pFlash, AddrToRead, size, result));
+}
+
+
+/*-----------------------------------------------------------------------------*/
+/* Function Name       : write_dataflash                                       */
+/* Object              : write a block in dataflash                            */
+/*-----------------------------------------------------------------------------*/
+int write_dataflash(unsigned long addr_dest, unsigned int addr_src,
+                    unsigned int size)
+{
+	unsigned int AddrToWrite = addr_dest;
+	AT91PS_DataFlash pFlash = &DataFlashInst;
+
+	pFlash = AT91F_DataflashSelect(pFlash, &AddrToWrite);
+	if (AddrToWrite == -1)
+		return -1;
+
+	return AT91F_DataFlashWrite(pFlash, (unsigned char *) addr_src, AddrToWrite, size);
+}
+
+/*-----------------------------------------------------------------------------*/
+/* Function Name       : erase_dataflash                                       */
+/* Object              : Erase entire dataflash                                */
+/*-----------------------------------------------------------------------------*/
+int erase_dataflash(unsigned long addr_dest)
+{
+	unsigned int AddrToWrite = addr_dest;
+	AT91PS_DataFlash pFlash = &DataFlashInst;
+
+	pFlash = AT91F_DataflashSelect (pFlash, &AddrToWrite);
+	if (AddrToWrite == -1)
+		return -1;
+
+	return AT91F_DataFlashErase(pFlash);
+}
+