eCos flash driver.

git-svn-id: svn://svn.berlios.de/openocd/trunk@365 b42882b7-edfa-0310-969c-e2dbd0fdcd60

1 files changed, 72 insertions, 0 deletions

diff --git a/ecosflash/flash.c b/ecosflash/flash.c
new file mode 100644
index 00000000..654273d3
--- /dev/null
+++ b/ecosflash/flash.c
@@ -0,0 +1,72 @@
+#include <string.h>
+#define _FLASH_PRIVATE_
+#include <cyg/io/flash.h>
+
+
+
+int myprintf(char *format, ...)
+{
+  return 0;
+}
+
+extern char _start_bss_clear;
+extern char __bss_end__;
+
+int init()
+{
+	// set up runtime environment
+	char *t;
+	for (t=&_start_bss_clear; t<&__bss_end__; t++)
+	{
+		*t=0;
+	}
+	return flash_init((_printf *)&myprintf);
+	
+}
+
+
+int checkFlash(void *addr, int len)
+{
+    // Return error for illegal addresses
+    if ((addr<flash_info.start)||(addr>flash_info.end))
+    	return FLASH_ERR_INVALID;
+    if ((((cyg_uint8 *)addr)+len)>(cyg_uint8 *)flash_info.end)
+    	return FLASH_ERR_INVALID;
+    return FLASH_ERR_OK;
+}
+
+
+int erase(void *address, int len)	
+{
+	int retval;
+	void *failAddress;
+	
+	retval=checkFlash(address, len);
+	if (retval!=0)
+		return retval;
+	
+	retval=init();
+	if (retval!=0)
+		return retval;
+	return flash_erase(address, len, &failAddress);
+}
+
+
+
+extern char _end;
+
+// Data follows immediately after program, long word aligned.
+int program(void *buffer, void *address, int len)	
+{
+	int retval;
+	void *failAddress;
+	retval=checkFlash(address, len);
+	if (retval!=0)
+		return retval;
+	
+	retval=init();
+	if (retval!=0)
+		return retval;
+	//int flash_program(void *_addr, void *_data, int len, void **err_addr)
+	return flash_program(address, buffer, len, &failAddress);
+}