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Commit 5fc1f312 authored by Jesper Nilsson's avatar Jesper Nilsson
Browse files

CRIS v32: Update and improve axisflashmap 

- Use default partition table when no partition is found (for initial tests)
- Add config ETRAX_AXISFLASHMAP_MTD0WHOLE to allow whole flash as mtd0.
- Add config for VCS simulator connection.
parent 201ca54a

arch/cris/arch-v32/drivers/axisflashmap.c

+345 −143
Original line number Diff line number Diff line 
/*

 * Physical mapping layer for MTD using the Axis partitiontable format

 *

 * Copyright (c) 2001, 2002, 2003 Axis Communications AB

 * Copyright (c) 2001-2007 Axis Communications AB

 *

 * This file is under the GPL.

 *
@@ -10,9 +10,6 @@ 
 * tells us what other partitions to define. If there isn't, we use a default

 * partition split defined below.

 *

 * Copy of os/lx25/arch/cris/arch-v10/drivers/axisflashmap.c 1.5

 * with minor changes.

 *

 */



#include <linux/module.h>
@@ -27,7 +24,8 @@ 
#include <linux/mtd/mtdram.h>

#include <linux/mtd/partitions.h>



#include <asm/arch/hwregs/config_defs.h>

#include <linux/cramfs_fs.h>



#include <asm/axisflashmap.h>

#include <asm/mmu.h>
@@ -37,16 +35,24 @@ 
#define FLASH_UNCACHED_ADDR  KSEG_E

#define FLASH_CACHED_ADDR    KSEG_F



#define PAGESIZE (512)



#if CONFIG_ETRAX_FLASH_BUSWIDTH==1

#define flash_data __u8

#elif CONFIG_ETRAX_FLASH_BUSWIDTH==2

#define flash_data __u16

#elif CONFIG_ETRAX_FLASH_BUSWIDTH==4

#define flash_data __u16

#define flash_data __u32

#endif



/* From head.S */

extern unsigned long romfs_start, romfs_length, romfs_in_flash;

extern unsigned long romfs_in_flash; /* 1 when romfs_start, _length in flash */

extern unsigned long romfs_start, romfs_length;

extern unsigned long nand_boot; /* 1 when booted from nand flash */



struct partition_name {

	char name[6];

};



/* The master mtd for the entire flash. */

struct mtd_info* axisflash_mtd = NULL;
@@ -112,32 +118,20 @@ static struct map_info map_cse1 = { 
	.map_priv_1 = FLASH_UNCACHED_ADDR + MEM_CSE0_SIZE

};



/* If no partition-table was found, we use this default-set. */

#define MAX_PARTITIONS			7

#ifdef CONFIG_ETRAX_NANDBOOT

#define NUM_DEFAULT_PARTITIONS		4

#define DEFAULT_ROOTFS_PARTITION_NO	2

#define DEFAULT_MEDIA_SIZE              0x2000000 /* 32 megs */

#else

#define NUM_DEFAULT_PARTITIONS		3

#define DEFAULT_ROOTFS_PARTITION_NO	(-1)

#define DEFAULT_MEDIA_SIZE              0x800000 /* 8 megs */

#endif



/*

 * Default flash size is 2MB. CONFIG_ETRAX_PTABLE_SECTOR is most likely the

 * size of one flash block and "filesystem"-partition needs 5 blocks to be able

 * to use JFFS.

 */

static struct mtd_partition axis_default_partitions[NUM_DEFAULT_PARTITIONS] = {

	{

		.name = "boot firmware",

		.size = CONFIG_ETRAX_PTABLE_SECTOR,

		.offset = 0

	},

	{

		.name = "kernel",

		.size = 0x200000 - (6 * CONFIG_ETRAX_PTABLE_SECTOR),

		.offset = CONFIG_ETRAX_PTABLE_SECTOR

	},

	{

		.name = "filesystem",

		.size = 5 * CONFIG_ETRAX_PTABLE_SECTOR,

		.offset = 0x200000 - (5 * CONFIG_ETRAX_PTABLE_SECTOR)

	}

};

#if (MAX_PARTITIONS < NUM_DEFAULT_PARTITIONS)

#error MAX_PARTITIONS must be >= than NUM_DEFAULT_PARTITIONS

#endif



/* Initialize the ones normally used. */

static struct mtd_partition axis_partitions[MAX_PARTITIONS] = {
@@ -178,6 +172,56 @@ static struct mtd_partition axis_partitions[MAX_PARTITIONS] = { 
	},

};





/* If no partition-table was found, we use this default-set.

 * Default flash size is 8MB (NOR). CONFIG_ETRAX_PTABLE_SECTOR is most

 * likely the size of one flash block and "filesystem"-partition needs

 * to be >=5 blocks to be able to use JFFS.

 */

static struct mtd_partition axis_default_partitions[NUM_DEFAULT_PARTITIONS] = {

	{

		.name = "boot firmware",

		.size = CONFIG_ETRAX_PTABLE_SECTOR,

		.offset = 0

	},

	{

		.name = "kernel",

		.size = 10 * CONFIG_ETRAX_PTABLE_SECTOR,

		.offset = CONFIG_ETRAX_PTABLE_SECTOR

	},

#define FILESYSTEM_SECTOR (11 * CONFIG_ETRAX_PTABLE_SECTOR)

#ifdef CONFIG_ETRAX_NANDBOOT

	{

		.name = "rootfs",

		.size = 10 * CONFIG_ETRAX_PTABLE_SECTOR,

		.offset = FILESYSTEM_SECTOR

	},

#undef FILESYSTEM_SECTOR

#define FILESYSTEM_SECTOR (21 * CONFIG_ETRAX_PTABLE_SECTOR)

#endif

	{

		.name = "rwfs",

		.size = DEFAULT_MEDIA_SIZE - FILESYSTEM_SECTOR,

		.offset = FILESYSTEM_SECTOR

	}

};



#ifdef CONFIG_ETRAX_AXISFLASHMAP_MTD0WHOLE

/* Main flash device */

static struct mtd_partition main_partition = {

	.name = "main",

	.size = 0,

	.offset = 0

};

#endif



/* Auxilliary partition if we find another flash */

static struct mtd_partition aux_partition = {

	.name = "aux",

	.size = 0,

	.offset = 0

};



/*

 * Probe a chip select for AMD-compatible (JEDEC) or CFI-compatible flash

 * chips in that order (because the amd_flash-driver is faster).
@@ -204,7 +248,7 @@ static struct mtd_info *probe_cs(struct map_info *map_cs) 
/*

 * Probe each chip select individually for flash chips. If there are chips on

 * both cse0 and cse1, the mtd_info structs will be concatenated to one struct

 * so that MTD partitions can cross chip boundaries.

 * so that MTD partitions can cross chip boundries.

 *

 * The only known restriction to how you can mount your chips is that each

 * chip select must hold similar flash chips. But you need external hardware
@@ -216,9 +260,8 @@ static struct mtd_info *flash_probe(void) 
{

	struct mtd_info *mtd_cse0;

	struct mtd_info *mtd_cse1;

	struct mtd_info *mtd_nand = NULL;

	struct mtd_info *mtd_total;

	struct mtd_info *mtds[3];

	struct mtd_info *mtds[2];

	int count = 0;



	if ((mtd_cse0 = probe_cs(&map_cse0)) != NULL)
@@ -226,12 +269,7 @@ static struct mtd_info *flash_probe(void) 
	if ((mtd_cse1 = probe_cs(&map_cse1)) != NULL)

		mtds[count++] = mtd_cse1;



#ifdef CONFIG_ETRAX_NANDFLASH

	if ((mtd_nand = crisv32_nand_flash_probe()) != NULL)

		mtds[count++] = mtd_nand;

#endif



	if (!mtd_cse0 && !mtd_cse1 && !mtd_nand) {

	if (!mtd_cse0 && !mtd_cse1) {

		/* No chip found. */

		return NULL;

	}
@@ -245,9 +283,7 @@ static struct mtd_info *flash_probe(void) 
		 * So we use the MTD concatenation layer instead of further

		 * complicating the probing procedure.

		 */

		mtd_total = mtd_concat_create(mtds,

		                              count,

		                              "cse0+cse1+nand");

		mtd_total = mtd_concat_create(mtds, count, "cse0+cse1");

#else

		printk(KERN_ERR "%s and %s: Cannot concatenate due to kernel "

		       "(mis)configuration!\n", map_cse0.name, map_cse1.name);
@@ -258,58 +294,159 @@ static struct mtd_info *flash_probe(void) 
				map_cse0.name, map_cse1.name);



			/* The best we can do now is to only use what we found

			 * at cse0.

			 */

			 * at cse0. */

			mtd_total = mtd_cse0;

			map_destroy(mtd_cse1);

		}

	} else {

		mtd_total = mtd_cse0? mtd_cse0 : mtd_cse1 ? mtd_cse1 : mtd_nand;



	}

	} else

		mtd_total = mtd_cse0 ? mtd_cse0 : mtd_cse1;



	return mtd_total;

}



extern unsigned long crisv32_nand_boot;

extern unsigned long crisv32_nand_cramfs_offset;



/*

 * Probe the flash chip(s) and, if it succeeds, read the partition-table

 * and register the partitions with MTD.

 */

static int __init init_axis_flash(void)

{

	struct mtd_info *mymtd;

	struct mtd_info *main_mtd;

	struct mtd_info *aux_mtd = NULL;

	int err = 0;

	int pidx = 0;

	struct partitiontable_head *ptable_head = NULL;

	struct partitiontable_entry *ptable;

	int use_default_ptable = 1; /* Until proven otherwise. */

	const char *pmsg = KERN_INFO "  /dev/flash%d at 0x%08x, size 0x%08x\n";

	static char page[512];

	int ptable_ok = 0;

	static char page[PAGESIZE];

	size_t len;

	int ram_rootfs_partition = -1; /* -1 => no RAM rootfs partition */

	int part;



	/* We need a root fs. If it resides in RAM, we need to use an

	 * MTDRAM device, so it must be enabled in the kernel config,

	 * but its size must be configured as 0 so as not to conflict

	 * with our usage.

	 */

#if !defined(CONFIG_MTD_MTDRAM) || (CONFIG_MTDRAM_TOTAL_SIZE != 0) || (CONFIG_MTDRAM_ABS_POS != 0)

	if (!romfs_in_flash && !nand_boot) {

		printk(KERN_EMERG "axisflashmap: Cannot create an MTD RAM "

		       "device; configure CONFIG_MTD_MTDRAM with size = 0!\n");

		panic("This kernel cannot boot from RAM!\n");

	}

#endif



#ifndef CONFIG_ETRAX_VCS_SIM

	main_mtd = flash_probe();

	if (main_mtd)

		printk(KERN_INFO "%s: 0x%08x bytes of NOR flash memory.\n",

		       main_mtd->name, main_mtd->size);



#ifdef CONFIG_ETRAX_NANDFLASH

	aux_mtd = crisv32_nand_flash_probe();

	if (aux_mtd)

		printk(KERN_INFO "%s: 0x%08x bytes of NAND flash memory.\n",

			aux_mtd->name, aux_mtd->size);



#ifndef CONFIG_ETRAXFS_SIM

	mymtd = flash_probe();

	mymtd->read(mymtd, CONFIG_ETRAX_PTABLE_SECTOR, 512, &len, page);

	ptable_head = (struct partitiontable_head *)(page + PARTITION_TABLE_OFFSET);

#ifdef CONFIG_ETRAX_NANDBOOT

	{

		struct mtd_info *tmp_mtd;



		printk(KERN_INFO "axisflashmap: Set to boot from NAND flash, "

		       "making NAND flash primary device.\n");

		tmp_mtd = main_mtd;

		main_mtd = aux_mtd;

		aux_mtd = tmp_mtd;

	}

#endif /* CONFIG_ETRAX_NANDBOOT */

#endif /* CONFIG_ETRAX_NANDFLASH */



	if (!mymtd) {

	if (!main_mtd && !aux_mtd) {

		/* There's no reason to use this module if no flash chip can

		 * be identified. Make sure that's understood.

		 */

		printk(KERN_INFO "axisflashmap: Found no flash chip.\n");

	} else {

		printk(KERN_INFO "%s: 0x%08x bytes of flash memory.\n",

		       mymtd->name, mymtd->size);

		axisflash_mtd = mymtd;

	}



	if (mymtd) {

		mymtd->owner = THIS_MODULE;

#if 0 /* Dump flash memory so we can see what is going on */

	if (main_mtd) {

		int sectoraddr, i;

		for (sectoraddr = 0; sectoraddr < 2*65536+4096;

				sectoraddr += PAGESIZE) {

			main_mtd->read(main_mtd, sectoraddr, PAGESIZE, &len,

				page);

			printk(KERN_INFO

			       "Sector at %d (length %d):\n",

			       sectoraddr, len);

			for (i = 0; i < PAGESIZE; i += 16) {

				printk(KERN_INFO

				       "%02x %02x %02x %02x "

				       "%02x %02x %02x %02x "

				       "%02x %02x %02x %02x "

				       "%02x %02x %02x %02x\n",

				       page[i] & 255, page[i+1] & 255,

				       page[i+2] & 255, page[i+3] & 255,

				       page[i+4] & 255, page[i+5] & 255,

				       page[i+6] & 255, page[i+7] & 255,

				       page[i+8] & 255, page[i+9] & 255,

				       page[i+10] & 255, page[i+11] & 255,

				       page[i+12] & 255, page[i+13] & 255,

				       page[i+14] & 255, page[i+15] & 255);

			}

		}

	}

#endif



	if (main_mtd) {

		main_mtd->owner = THIS_MODULE;

		axisflash_mtd = main_mtd;



		loff_t ptable_sector = CONFIG_ETRAX_PTABLE_SECTOR;



		/* First partition (rescue) is always set to the default. */

		pidx++;

#ifdef CONFIG_ETRAX_NANDBOOT

		/* We know where the partition table should be located,

		 * it will be in first good block after that.

		 */

		int blockstat;

		do {

			blockstat = main_mtd->block_isbad(main_mtd,

				ptable_sector);

			if (blockstat < 0)

				ptable_sector = 0; /* read error */

			else if (blockstat)

				ptable_sector += main_mtd->erasesize;

		} while (blockstat && ptable_sector);

#endif

		if (ptable_sector) {

			main_mtd->read(main_mtd, ptable_sector, PAGESIZE,

				&len, page);

			ptable_head = &((struct partitiontable *) page)->head;

		}



#if 0 /* Dump partition table so we can see what is going on */

		printk(KERN_INFO

		       "axisflashmap: flash read %d bytes at 0x%08x, data: "

		       "%02x %02x %02x %02x %02x %02x %02x %02x\n",

		       len, CONFIG_ETRAX_PTABLE_SECTOR,

		       page[0] & 255, page[1] & 255,

		       page[2] & 255, page[3] & 255,

		       page[4] & 255, page[5] & 255,

		       page[6] & 255, page[7] & 255);

		printk(KERN_INFO

		       "axisflashmap: partition table offset %d, data: "

		       "%02x %02x %02x %02x %02x %02x %02x %02x\n",

		       PARTITION_TABLE_OFFSET,

		       page[PARTITION_TABLE_OFFSET+0] & 255,

		       page[PARTITION_TABLE_OFFSET+1] & 255,

		       page[PARTITION_TABLE_OFFSET+2] & 255,

		       page[PARTITION_TABLE_OFFSET+3] & 255,

		       page[PARTITION_TABLE_OFFSET+4] & 255,

		       page[PARTITION_TABLE_OFFSET+5] & 255,

		       page[PARTITION_TABLE_OFFSET+6] & 255,

		       page[PARTITION_TABLE_OFFSET+7] & 255);

#endif

	}

	pidx++;  /* First partition is always set to the default. */



	if (ptable_head && (ptable_head->magic == PARTITION_TABLE_MAGIC)

	    && (ptable_head->size <
@@ -322,7 +459,6 @@ static int __init init_axis_flash(void) 
		/* Looks like a start, sane length and end of a

		 * partition table, lets check csum etc.

		 */

		int ptable_ok = 0;

		struct partitiontable_entry *max_addr =

			(struct partitiontable_entry *)

			((unsigned long)ptable_head + sizeof(*ptable_head) +
@@ -346,104 +482,170 @@ static int __init init_axis_flash(void) 
		ptable_ok = (csum == ptable_head->checksum);



		/* Read the entries and use/show the info.  */

		printk(KERN_INFO " Found a%s partition table at 0x%p-0x%p.\n",

		printk(KERN_INFO "axisflashmap: "

		       "Found a%s partition table at 0x%p-0x%p.\n",

		       (ptable_ok ? " valid" : "n invalid"), ptable_head,

		       max_addr);



		/* We have found a working bootblock.  Now read the

		 * partition table.  Scan the table.  It ends when

		 * there is 0xffffffff, that is, empty flash.

		 * partition table.  Scan the table.  It ends with 0xffffffff.

		 */

		while (ptable_ok

		       && ptable->offset != 0xffffffff

		       && ptable->offset != PARTITIONTABLE_END_MARKER

		       && ptable < max_addr

		       && pidx < MAX_PARTITIONS) {

		       && pidx < MAX_PARTITIONS - 1) {



			axis_partitions[pidx].offset = offset + ptable->offset + (crisv32_nand_boot ? 16384 : 0);

			axis_partitions[pidx].offset = offset + ptable->offset;

#ifdef CONFIG_ETRAX_NANDFLASH

			if (main_mtd->type == MTD_NANDFLASH) {

				axis_partitions[pidx].size =

					(((ptable+1)->offset ==

					  PARTITIONTABLE_END_MARKER) ?

					  main_mtd->size :

					  ((ptable+1)->offset + offset)) -

					(ptable->offset + offset);



			} else

#endif /* CONFIG_ETRAX_NANDFLASH */

				axis_partitions[pidx].size = ptable->size;



			printk(pmsg, pidx, axis_partitions[pidx].offset,

			       axis_partitions[pidx].size);

#ifdef CONFIG_ETRAX_NANDBOOT

			/* Save partition number of jffs2 ro partition.

			 * Needed if RAM booting or root file system in RAM.

			 */

			if (!nand_boot &&

			    ram_rootfs_partition < 0 && /* not already set */

			    ptable->type == PARTITION_TYPE_JFFS2 &&

			    (ptable->flags & PARTITION_FLAGS_READONLY_MASK) ==

				PARTITION_FLAGS_READONLY)

				ram_rootfs_partition = pidx;

#endif /* CONFIG_ETRAX_NANDBOOT */

			pidx++;

			ptable++;

		}

		use_default_ptable = !ptable_ok;

	}



	if (romfs_in_flash) {

		/* Add an overlapping device for the root partition (romfs). */

	/* Decide whether to use default partition table. */

	/* Only use default table if we actually have a device (main_mtd) */



		axis_partitions[pidx].name = "romfs";

		if (crisv32_nand_boot) {

			char* data = kmalloc(1024, GFP_KERNEL);

			int len;

			int offset = crisv32_nand_cramfs_offset & ~(1024-1);

			char* tmp;



			mymtd->read(mymtd, offset, 1024, &len, data);

			tmp = &data[crisv32_nand_cramfs_offset % 512];

			axis_partitions[pidx].size = *(unsigned*)(tmp + 4);

			axis_partitions[pidx].offset = crisv32_nand_cramfs_offset;

			kfree(data);

		} else {

			axis_partitions[pidx].size = romfs_length;

			axis_partitions[pidx].offset = romfs_start - FLASH_CACHED_ADDR;

	struct mtd_partition *partition = &axis_partitions[0];

	if (main_mtd && !ptable_ok) {

		memcpy(axis_partitions, axis_default_partitions,

		       sizeof(axis_default_partitions));

		pidx = NUM_DEFAULT_PARTITIONS;

		ram_rootfs_partition = DEFAULT_ROOTFS_PARTITION_NO;

	}



	/* Add artificial partitions for rootfs if necessary */

	if (romfs_in_flash) {

		/* rootfs is in directly accessible flash memory = NOR flash.

		   Add an overlapping device for the rootfs partition. */

		printk(KERN_INFO "axisflashmap: Adding partition for "

		       "overlapping root file system image\n");

		axis_partitions[pidx].size = romfs_length;

		axis_partitions[pidx].offset = romfs_start - FLASH_CACHED_ADDR;

		axis_partitions[pidx].name = "romfs";

		axis_partitions[pidx].mask_flags |= MTD_WRITEABLE;



		printk(KERN_INFO

                       " Adding readonly flash partition for romfs image:\n");

		printk(pmsg, pidx, axis_partitions[pidx].offset,

		       axis_partitions[pidx].size);

		ram_rootfs_partition = -1;

		pidx++;

	} else if (romfs_length && !nand_boot) {

		/* romfs exists in memory, but not in flash, so must be in RAM.

		 * Configure an MTDRAM partition. */

		if (ram_rootfs_partition < 0) {

			/* None set yet, put it at the end */

			ram_rootfs_partition = pidx;

			pidx++;

		}



        if (mymtd) {

		if (use_default_ptable) {

			printk(KERN_INFO " Using default partition table.\n");

			err = add_mtd_partitions(mymtd, axis_default_partitions,

						 NUM_DEFAULT_PARTITIONS);

		} else {

			err = add_mtd_partitions(mymtd, axis_partitions, pidx);

		printk(KERN_INFO "axisflashmap: Adding partition for "

		       "root file system image in RAM\n");

		axis_partitions[ram_rootfs_partition].size = romfs_length;

		axis_partitions[ram_rootfs_partition].offset = romfs_start;

		axis_partitions[ram_rootfs_partition].name = "romfs";

		axis_partitions[ram_rootfs_partition].mask_flags |=

			MTD_WRITEABLE;

	}



		if (err) {

			panic("axisflashmap could not add MTD partitions!\n");

#ifdef CONFIG_ETRAX_AXISFLASHMAP_MTD0WHOLE

	if (main_mtd) {

		main_partition.size = main_mtd->size;

		err = add_mtd_partitions(main_mtd, &main_partition, 1);

		if (err)

			panic("axisflashmap: Could not initialize "

			      "partition for whole main mtd device!\n");

	}

	}

/* CONFIG_EXTRAXFS_SIM */

#endif



	if (!romfs_in_flash) {

		/* Create an RAM device for the root partition (romfs). */

	/* Now, register all partitions with mtd.

	 * We do this one at a time so we can slip in an MTDRAM device

	 * in the proper place if required. */



#if !defined(CONFIG_MTD_MTDRAM) || (CONFIG_MTDRAM_TOTAL_SIZE != 0) || (CONFIG_MTDRAM_ABS_POS != 0)

		/* No use trying to boot this kernel from RAM. Panic! */

		printk(KERN_EMERG "axisflashmap: Cannot create an MTD RAM "

		       "device due to kernel (mis)configuration!\n");

		panic("This kernel cannot boot from RAM!\n");

#else

	for (part = 0; part < pidx; part++) {

		if (part == ram_rootfs_partition) {

			/* add MTDRAM partition here */

			struct mtd_info *mtd_ram;



		mtd_ram = kmalloc(sizeof(struct mtd_info),

						     GFP_KERNEL);

			mtd_ram = kmalloc(sizeof(struct mtd_info), GFP_KERNEL);

			if (!mtd_ram)

				panic("axisflashmap: Couldn't allocate memory "

				      "for mtd_info!\n");

			printk(KERN_INFO "axisflashmap: Adding RAM partition "

			       "for rootfs image.\n");

			err = mtdram_init_device(mtd_ram,

						 (void *)partition[part].offset,

						 partition[part].size,

						 partition[part].name);

			if (err)

				panic("axisflashmap: Could not initialize "

				      "MTD RAM device!\n");

			/* JFFS2 likes to have an erasesize. Keep potential

			 * JFFS2 rootfs happy by providing one. Since image

			 * was most likely created for main mtd, use that

			 * erasesize, if available. Otherwise, make a guess. */

			mtd_ram->erasesize = (main_mtd ? main_mtd->erasesize :

				CONFIG_ETRAX_PTABLE_SECTOR);

		} else {

			err = add_mtd_partitions(main_mtd, &partition[part], 1);

			if (err)

				panic("axisflashmap: Could not add mtd "

					"partition %d\n", part);

		}

	}

#endif /* CONFIG_EXTRAX_VCS_SIM */



#ifdef CONFIG_ETRAX_VCS_SIM

	/* For simulator, always use a RAM partition.

	 * The rootfs will be found after the kernel in RAM,

	 * with romfs_start and romfs_end indicating location and size.

	 */

	struct mtd_info *mtd_ram;



	mtd_ram = kmalloc(sizeof(struct mtd_info), GFP_KERNEL);

	if (!mtd_ram) {

			panic("axisflashmap couldn't allocate memory for "

		panic("axisflashmap: Couldn't allocate memory for "

		      "mtd_info!\n");

	}



		printk(KERN_INFO " Adding RAM partition for romfs image:\n");

		printk(pmsg, pidx, romfs_start, romfs_length);

	printk(KERN_INFO "axisflashmap: Adding RAM partition for romfs, "

	       "at %u, size %u\n",

	       (unsigned) romfs_start, (unsigned) romfs_length);



	err = mtdram_init_device(mtd_ram, (void *)romfs_start,

				 romfs_length, "romfs");

	if (err) {

			panic("axisflashmap could not initialize MTD RAM "

		panic("axisflashmap: Could not initialize MTD RAM "

		      "device!\n");

	}

#endif

#endif /* CONFIG_EXTRAX_VCS_SIM */



#ifndef CONFIG_ETRAX_VCS_SIM

	if (aux_mtd) {

		aux_partition.size = aux_mtd->size;

		err = add_mtd_partitions(aux_mtd, &aux_partition, 1);

		if (err)

			panic("axisflashmap: Could not initialize "

			      "aux mtd device!\n");



	}

#endif /* CONFIG_EXTRAX_VCS_SIM */



	return err;

}