From 2abbe0754759f94c79125a2534fbc4be74f416bc Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Mon, 16 Jun 2003 23:50:08 +0000
Subject: * Patch by Nicolas Lacressonniere, 11 Jun 2003:   Modifications for
 Atmel AT91RM9200DK ARM920T based development kit   - Add Atmel DataFlash
 support for reading and writing.   - Add possibility to boot a Linux from
 DataFlash with BOOTM command.   - Add Flash detection on Atmel AT91RM9200DK  
   (between Atmel AT49BV1614 and AT49BV1614A flashes)   - Replace old Ethernet
 PHY layer functions   - Change link address

* Patch by Frank Smith, 9 Jun 2003:
  use CRIT_EXCEPTION for machine check on 4xx

* Patch by Detlev Zundel, 13 Jun 2003:
  added implementation of the "carinfo" command in cmd_immap.c
---
 lib_arm/armlinux.c | 15 +++++++++++++++
 lib_arm/board.c    | 10 ++++++++++
 2 files changed, 25 insertions(+)

(limited to 'lib_arm')

diff --git a/lib_arm/armlinux.c b/lib_arm/armlinux.c
index 2fb8db8710..03058033f8 100644
--- a/lib_arm/armlinux.c
+++ b/lib_arm/armlinux.c
@@ -27,6 +27,9 @@
 #include <image.h>
 #include <zlib.h>
 #include <asm/byteorder.h>
+#ifdef CONFIG_HAS_DATAFLASH
+#include <dataflash.h>
+#endif
 
 #include <asm/setup.h>
 #define tag_size(type)  ((sizeof(struct tag_header) + sizeof(struct type)) >> 2)
@@ -94,6 +97,11 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 	printf ("## Loading Ramdisk Image at %08lx ...\n", addr);
 
 	/* Copy header so we can blank CRC field for re-calculation */
+#ifdef CONFIG_HAS_DATAFLASH
+	if (addr_dataflash(addr)){
+		read_dataflash(addr, sizeof(image_header_t), (char *)&header);
+	} else
+#endif	
 	memcpy (&header, (char *)addr, sizeof(image_header_t));
 
 	if (ntohl(hdr->ih_magic) != IH_MAGIC) {
@@ -121,6 +129,13 @@ void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 	data = addr + sizeof(image_header_t);
 	len  = ntohl(hdr->ih_size);
 
+#ifdef CONFIG_HAS_DATAFLASH
+	if (addr_dataflash(addr)){
+		read_dataflash(data, len, (char *)CFG_LOAD_ADDR);
+		data = CFG_LOAD_ADDR;
+	}
+#endif
+
 	if (verify) {
 	    ulong csum = 0;
 
diff --git a/lib_arm/board.c b/lib_arm/board.c
index af6af14db7..37d4d9f385 100644
--- a/lib_arm/board.c
+++ b/lib_arm/board.c
@@ -37,6 +37,11 @@ void nand_init (void);
 
 ulong monitor_flash_len;
 
+#ifdef CONFIG_HAS_DATAFLASH
+extern int  AT91F_DataflashInit(void);
+extern void dataflash_print_info(void);
+#endif
+
 const char version_string[] =
 	U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")";
 
@@ -242,6 +247,11 @@ void start_armboot (void)
 	nand_init();		/* go init the NAND */
 #endif
 
+#ifdef CONFIG_HAS_DATAFLASH
+	AT91F_DataflashInit();
+	dataflash_print_info();
+#endif
+
 	/* initialize environment */
 	env_relocate ();
 
-- 
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