* Fix CONFIG_NET_MULTI support in include/net.h

* Patches by Kyle Harris, 13 Mar 2003:
  - Add FAT partition support
  - Add command support for FAT
  - Add command support for MMC
  ----
  - Add Intel PXA support for video
  - Add Intel PXA support for MMC
  ----
  - Enable MMC and FAT for lubbock board
  - Other misc changes for lubbock board

CHANGELOG

@@ -2,6 +2,19 @@
 Changes since U-Boot 0.3.1:
 ======================================================================
 
+* Fix CONFIG_NET_MULTI support in include/net.h
+
+* Patches by Kyle Harris, 13 Mar 2003:
+  - Add FAT partition support
+  - Add command support for FAT
+  - Add command support for MMC
+  ----
+  - Add Intel PXA support for video
+  - Add Intel PXA support for MMC
+  ----
+  - Enable MMC and FAT for lubbock board
+  - Other misc changes for lubbock board
+
 * Patch by Robert Schwebel, April 02, 2003:
   fix for SMSC91111 driver
 

Makefile

@@ -106,7 +106,7 @@ endif
 LIBS  =	board/$(BOARDDIR)/lib$(BOARD).a
 LIBS += cpu/$(CPU)/lib$(CPU).a
 LIBS += lib_$(ARCH)/lib$(ARCH).a
-LIBS += fs/jffs2/libjffs2.a fs/fdos/libfdos.a
+LIBS += fs/jffs2/libjffs2.a fs/fdos/libfdos.a fs/fat/libfat.a
 LIBS += net/libnet.a
 LIBS += disk/libdisk.a
 LIBS += rtc/librtc.a
@@ -377,7 +377,7 @@ TQM860L_80MHz_config	\
 TQM862L_config		\
 TQM862L_66MHz_config	\
 TQM862L_80MHz_config	\
-TQM862L_100MHz_config:	unconfig
+TQM862M_100MHz_config:	unconfig
 	@ >include/config.h
 	@[ -z "$(findstring _66MHz,$@)" ] || \
 		{ echo "#define CONFIG_66MHz"		>>include/config.h ; \

README

@@ -565,6 +565,7 @@ The following options need to be configured:
 		CFG_CMD_ELF	  bootelf, bootvx
 		CFG_CMD_ENV	  saveenv
 		CFG_CMD_FDC	* Floppy Disk Support
+		CFG_CMD_FAT	  FAT partition support
 		CFG_CMD_FDOS	* Dos diskette Support
 		CFG_CMD_FLASH	  flinfo, erase, protect
 		CFG_CMD_FPGA	  FPGA device initialization support
@@ -578,6 +579,7 @@ The following options need to be configured:
 		CFG_CMD_LOADS	  loads
 		CFG_CMD_MEMORY	  md, mm, nm, mw, cp, cmp, crc, base,
 				  loop, mtest
+		CFG_CMD_MMC	  MMC memory mapped support
 		CFG_CMD_MII	  MII utility commands
 		CFG_CMD_NET	  bootp, tftpboot, rarpboot
 		CFG_CMD_PCI	* pciinfo
@@ -730,6 +732,14 @@ The following options need to be configured:
 		Supported are USB Keyboards and USB Floppy drives
 		(TEAC FD-05PUB).
 
+- MMC Support:
+  		The MMC controller on the Intel PXA is supported. To
+		enable this define CONFIG_MMC. The MMC can be 
+		accessed from the boot prompt by mapping the device 
+		to physical memory similar to flash. Command line is
+		enabled with CFG_CMD_MMC. The MMC driver also works with
+		the FAT fs. This is enabled with CFG_CMD_FAT. 
+
 - Keyboard Support:
 		CONFIG_ISA_KEYBOARD
 

board/lubbock/lubbock.c

@@ -50,6 +50,14 @@ int board_init (void)
 	return 0;
 }
 
+int board_post_init(void)
+{
+   setenv("stdout", "serial");
+   setenv("stderr", "serial");
+	return 0;
+}
+
+
 int dram_init (void)
 {
 	DECLARE_GLOBAL_DATA_PTR;

board/tqm8xx/flash.c

@@ -25,6 +25,7 @@
 
 #include <common.h>
 #include <mpc8xx.h>
+#include <environment.h>
 
 #ifndef	CFG_ENV_ADDR
 #define CFG_ENV_ADDR	(CFG_FLASH_BASE + CFG_ENV_OFFSET)
@@ -103,17 +104,41 @@ unsigned long flash_init (void)
 
 #if CFG_MONITOR_BASE >= CFG_FLASH_BASE
 	/* monitor protection ON by default */
+	debug ("Protect monitor: %08lx ... %08lx\n",
+		(ulong)CFG_MONITOR_BASE,
+		(ulong)CFG_MONITOR_BASE + monitor_flash_len - 1);
+
 	flash_protect(FLAG_PROTECT_SET,
 		      CFG_MONITOR_BASE,
-		      CFG_MONITOR_BASE+monitor_flash_len-1,
+		      CFG_MONITOR_BASE + monitor_flash_len - 1,
 		      &flash_info[0]);
 #endif
 
 #ifdef	CFG_ENV_IS_IN_FLASH
 	/* ENV protection ON by default */
+	debug ("Protect %senvironment: %08lx ... %08lx\n",
+# ifdef CFG_ENV_ADDR_REDUND
+		"primary   ",
+# else
+		"",
+# endif
+		(ulong)CFG_ENV_ADDR,
+		(ulong)CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1);
+
 	flash_protect(FLAG_PROTECT_SET,
 		      CFG_ENV_ADDR,
-		      CFG_ENV_ADDR+CFG_ENV_SIZE-1,
+		      CFG_ENV_ADDR + CFG_ENV_SECT_SIZE - 1,
+		      &flash_info[0]);
+#endif
+
+#ifdef CFG_ENV_ADDR_REDUND
+	debug ("Protect redundand environment: %08lx ... %08lx\n",
+		(ulong)CFG_ENV_ADDR_REDUND,
+		(ulong)CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1);
+
+	flash_protect(FLAG_PROTECT_SET,
+		      CFG_ENV_ADDR_REDUND,
+		      CFG_ENV_ADDR_REDUND + CFG_ENV_SECT_SIZE - 1,
 		      &flash_info[0]);
 #endif
 
@@ -181,6 +206,10 @@ void flash_print_info  (flash_info_t *info)
 	}
 
 	switch (info->flash_id & FLASH_TYPEMASK) {
+#ifdef CONFIG_TQM8xxM	/* mirror bit flash */
+	case FLASH_AMLV128U:	printf ("AM29LV128ML (128Mbit, uniform sector size)\n");
+				break;
+# else	/* ! TQM8xxM */
 	case FLASH_AM400B:	printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
 				break;
 	case FLASH_AM400T:	printf ("AM29LV400T (4 Mbit, top boot sector)\n");
@@ -197,6 +226,7 @@ void flash_print_info  (flash_info_t *info)
 				break;
 	case FLASH_AM320T:	printf ("AM29LV320T (32 Mbit, top boot sector)\n");
 				break;
+#endif	/* TQM8xxM */
 	default:		printf ("Unknown Chip Type\n");
 				break;
 	}
@@ -262,6 +292,25 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 	debug ("Device ID @ 0x%08lx: 0x%08lx\n", (ulong)(&addr[1]), value);
 
 	switch (value) {
+#ifdef CONFIG_TQM8xxM	/* mirror bit flash */
+	case AMD_ID_MIRROR:
+		switch(addr[14]) {
+		case AMD_ID_LV128U_2:
+			if (addr[15] != AMD_ID_LV128U_3) {
+				info->flash_id = FLASH_UNKNOWN;
+			}
+			else {
+				info->flash_id += FLASH_AMLV128U;
+				info->sector_count = 256;
+				info->size = 0x02000000;
+			}
+			break;				/* => 32 MB		*/
+		default:
+			info->flash_id = FLASH_UNKNOWN;
+			break;
+		}
+		break;
+# else	/* ! TQM8xxM */
 	case AMD_ID_LV400T:
 		info->flash_id += FLASH_AM400T;
 		info->sector_count = 11;
@@ -297,6 +346,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 		info->sector_count = 35;
 		info->size = 0x00400000;
 		break;				/* => 4 MB		*/
+
 	case AMD_ID_LV320T:
 		info->flash_id += FLASH_AM320T;
 		info->sector_count = 71;
@@ -308,12 +358,7 @@ static ulong flash_get_size (vu_long *addr, flash_info_t *info)
 		info->sector_count = 71;
 		info->size = 0x00800000;
 		break;				/* => 8 MB		*/
-	case AMD_ID_DL640:
-debug ("## oops - same ID used for AM29LV128ML/H mirror bit flash ???\n");
-		info->flash_id += FLASH_AMDL640;
-		info->sector_count = 142;
-		info->size = 0x00800000;
-		break;
+#endif	/* TQM8xxM */
 	default:
 		info->flash_id = FLASH_UNKNOWN;
 		return (0);			/* => no or unknown flash */
@@ -321,6 +366,19 @@ debug ("## oops - same ID used for AM29LV128ML/H mirror bit flash ???\n");
 
 	/* set up sector start address table */
 	switch (value) {
+#ifdef CONFIG_TQM8xxM	/* mirror bit flash */
+	case AMD_ID_MIRROR:
+		switch (info->flash_id & FLASH_TYPEMASK) {
+			/* only known types here - no default */
+		case FLASH_AMLV128U:
+			for (i = 0; i < info->sector_count; i++) {
+				info->start[i] = base;
+				base += 0x20000;
+			}
+			break;
+		}
+		break;
+# else	/* ! TQM8xxM */
 	case AMD_ID_LV400B:
 	case AMD_ID_LV800B:
 	case AMD_ID_LV160B:
@@ -369,6 +427,7 @@ debug ("## oops - same ID used for AM29LV128ML/H mirror bit flash ???\n");
 				:  2 * ( 8 << 10);
 		}
 		break;
+#endif	/* TQM8xxM */
 	default:
 		return (0);
 		break;

board/tqm8xx/u-boot.lds

@@ -66,7 +66,7 @@ SECTIONS
     lib_ppc/cache.o		(.text)
     lib_ppc/time.o		(.text)
 
-    . = env_offset;
+    . = DEFINED(env_offset) ? env_offset : .;
     common/environment.o	(.ppcenv)
 
     *(.text)

common/Makefile

@@ -31,10 +31,11 @@ COBJS	= main.o altera.o bedbug.o \
 	  cmd_autoscript.o cmd_bedbug.o cmd_bmp.o cmd_boot.o \
 	  cmd_bootm.o cmd_cache.o cmd_console.o cmd_date.o \
 	  cmd_dcr.o cmd_diag.o cmd_doc.o cmd_nand.o cmd_dtt.o \
-	  cmd_eeprom.o cmd_elf.o cmd_fdc.o cmd_fdos.o cmd_flash.o \
+	  cmd_eeprom.o cmd_elf.o \
+	  cmd_fat.o cmd_fdc.o cmd_fdos.o cmd_flash.o \
 	  cmd_fpga.o cmd_i2c.o cmd_ide.o cmd_immap.o \
 	  cmd_jffs2.o cmd_log.o cmd_mem.o cmd_mii.o cmd_misc.o \
-	  cmd_net.o cmd_nvedit.o env_common.o \
+	  cmd_mmc.o cmd_net.o cmd_nvedit.o env_common.o \
 	  env_flash.o env_eeprom.o env_nvram.o env_nowhere.o \
 	  cmd_pci.o cmd_pcmcia.o cmd_portio.o \
 	  cmd_reginfo.o cmd_scsi.o cmd_vfd.o cmd_usb.o \

common/cmd_fat.c

+/*
+ * (C) Copyright 2002
+ * Richard Jones, rjones@nexus-tech.net
+ *
+ * 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
+ */
+
+/*
+ * Boot support
+ */
+#include <common.h>
+#include <command.h>
+#include <cmd_boot.h>
+#include <cmd_autoscript.h>
+#include <s_record.h>
+#include <net.h>
+#include <ata.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_FAT)
+
+#undef	DEBUG
+
+#include <fat.h>
+
+extern block_dev_desc_t *ide_get_dev (int dev);
+
+int do_fat_fsload (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	long size;
+	unsigned long offset;
+	unsigned long count;
+
+	if (argc < 3) {
+		printf ("usage:fatload <filename> <addr> [bytes]\n");
+		return (0);
+	}
+
+	offset = simple_strtoul (argv[2], NULL, 16);
+	if (argc == 4)
+		count = simple_strtoul (argv[3], NULL, 16);
+	else
+		count = 0;
+
+	size = file_fat_read (argv[1], (unsigned char *) offset, count);
+
+	printf ("%ld bytes read\n", size);
+
+	return size;
+}
+
+int do_fat_ls (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	char *filename = "/";
+	int ret;
+
+	if (argc == 2)
+		ret = file_fat_ls (argv[1]);
+	else
+		ret = file_fat_ls (filename);
+
+	return (ret);
+}
+
+int do_fat_fsinfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	int ret;
+
+	ret = 0;
+
+	printf ("FAT info: %d\n", file_fat_detectfs ());
+
+	return (ret);
+}
+
+#ifdef NOT_IMPLEMENTED_YET
+/* find first device whose first partition is a DOS filesystem */
+int find_fat_partition (void)
+{
+	int i, j;
+	block_dev_desc_t *dev_desc;
+	unsigned char *part_table;
+	unsigned char buffer[ATA_BLOCKSIZE];
+
+	for (i = 0; i < CFG_IDE_MAXDEVICE; i++) {
+		dev_desc = ide_get_dev (i);
+		if (!dev_desc) {
+			debug ("couldn't get ide device!\n");
+			return (-1);
+		}
+		if (dev_desc->part_type == PART_TYPE_DOS) {
+			if (dev_desc->
+				block_read (dev_desc->dev, 0, 1, (ulong *) buffer) != 1) {
+				debug ("can't perform block_read!\n");
+				return (-1);
+			}
+			part_table = &buffer[0x1be];	/* start with partition #4 */
+			for (j = 0; j < 4; j++) {
+				if ((part_table[4] == 1 ||	/* 12-bit FAT */
+				     part_table[4] == 4 ||	/* 16-bit FAT */
+				     part_table[4] == 6) &&	/* > 32Meg part */
+				    part_table[0] == 0x80) {	/* bootable? */
+					curr_dev = i;
+					part_offset = part_table[11];
+					part_offset <<= 8;
+					part_offset |= part_table[10];
+					part_offset <<= 8;
+					part_offset |= part_table[9];
+					part_offset <<= 8;
+					part_offset |= part_table[8];
+					debug ("found partition start at %ld\n", part_offset);
+					return (0);
+				}
+				part_table += 16;
+			}
+		}
+	}
+
+	debug ("no valid devices found!\n");
+	return (-1);
+}
+
+int
+do_fat_dump (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[])
+{
+	__u8 block[1024];
+	int ret;
+	int bknum;
+
+	ret = 0;
+
+	if (argc != 2) {
+		printf ("needs an argument!\n");
+		return (0);
+	}
+
+	bknum = simple_strtoul (argv[1], NULL, 10);
+
+	if (disk_read (0, bknum, block) != 0) {
+		printf ("Error: reading block\n");
+		return -1;
+	}
+	printf ("FAT dump: %d\n", bknum);
+	hexdump (512, block);
+
+	return (ret);
+}
+
+int disk_read (__u32 startblock, __u32 getsize, __u8 *bufptr)
+{
+	ulong tot;
+	block_dev_desc_t *dev_desc;
+
+	if (curr_dev < 0) {
+		if (find_fat_partition () != 0)
+			return (-1);
+	}
+
+	dev_desc = ide_get_dev (curr_dev);
+	if (!dev_desc) {
+		debug ("couldn't get ide device\n");
+		return (-1);
+	}
+
+	tot = dev_desc->block_read (0, startblock + part_offset,
+				    getsize, (ulong *) bufptr);
+
+	/* should we do this here?
+	   flush_cache ((ulong)buf, cnt*ide_dev_desc[device].blksz);
+	 */
+
+	if (tot == getsize)
+		return (0);
+
+	debug ("unable to read from device!\n");
+
+	return (-1);
+}
+
+
+static int isprint (unsigned char ch)
+{
+	if (ch >= 32 && ch < 127)
+		return (1);
+
+	return (0);
+}
+
+
+void hexdump (int cnt, unsigned char *data)
+{
+	int i;
+	int run;
+	int offset;
+
+	offset = 0;
+	while (cnt) {
+		printf ("%04X : ", offset);
+		if (cnt >= 16)
+			run = 16;
+		else
+			run = cnt;
+		cnt -= run;
+		for (i = 0; i < run; i++)
+			printf ("%02X ", (unsigned int) data[i]);
+		printf (": ");
+		for (i = 0; i < run; i++)
+			printf ("%c", isprint (data[i]) ? data[i] : '.');
+		printf ("\n");
+		data = &data[16];
+		offset += run;
+	}
+}
+#endif	/* NOT_IMPLEMENTED_YET */
+
+#endif	/* CFG_CMD_FAT */

common/cmd_mem.c

@@ -30,6 +30,9 @@
 #include <common.h>
 #include <command.h>
 #include <cmd_mem.h>
+#if (CONFIG_COMMANDS & CFG_CMD_MMC)
+#include <mmc.h>
+#endif
 
 #if (CONFIG_COMMANDS & (CFG_CMD_MEMORY | CFG_CMD_PCI | CFG_CMD_I2C\
 			| CMD_CMD_PORTIO))
@@ -323,6 +326,46 @@ int do_mem_cp ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	}
 #endif
 
+#if (CONFIG_COMMANDS & CFG_CMD_MMC)
+	if (mmc2info(dest)) {
+		int rc;
+
+		printf ("Copy to MMC... ");
+		switch (rc = mmc_write ((uchar *)addr, dest, count*size)) {
+		case 0:
+			printf ("\n");
+			return 1;
+		case -1:
+			printf("failed\n");
+			return 1;
+		default:
+			printf ("%s[%d] FIXME: rc=%d\n",__FILE__,__LINE__,rc);
+			return 1;
+		}
+		puts ("done\n");
+		return 0;
+	}
+
+	if (mmc2info(addr)) {
+		int rc;
+
+		printf ("Copy from MMC... ");
+		switch (rc = mmc_read (addr, (uchar *)dest, count*size)) {
+		case 0:
+			printf ("\n");
+			return 1;
+		case -1:
+			printf("failed\n");
+			return 1;
+		default:
+			printf ("%s[%d] FIXME: rc=%d\n",__FILE__,__LINE__,rc);
+			return 1;
+		}
+		puts ("done\n");
+		return 0;
+	}
+#endif
+
 	while (count-- > 0) {
 		if (size == 4)
 			*((ulong  *)dest) = *((ulong  *)addr);
@@ -820,30 +863,29 @@ mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[])
 
 int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
-	ulong	addr, length;
-	ulong	crc;
-	ulong   *ptr;
+	ulong addr, length;
+	ulong crc;
+	ulong *ptr;
 
 	if (argc < 3) {
 		printf ("Usage:\n%s\n", cmdtp->usage);
 		return 1;
 	}
 
-	addr = simple_strtoul(argv[1], NULL, 16);
+	addr = simple_strtoul (argv[1], NULL, 16);
 	addr += base_address;
 
-	length = simple_strtoul(argv[2], NULL, 16);
+	length = simple_strtoul (argv[2], NULL, 16);
 
-	crc = crc32 (0, (const uchar *)addr, length);
+	crc = crc32 (0, (const uchar *) addr, length);
 
 	printf ("CRC32 for %08lx ... %08lx ==> %08lx\n",
-		addr, addr + length -1, crc);
+			addr, addr + length - 1, crc);
 
-	if (argc > 3)
-	  {
-	    ptr = (ulong *)simple_strtoul(argv[3], NULL, 16);
-	    *ptr = crc;
-	  }
+	if (argc > 3) {
+		ptr = (ulong *) simple_strtoul (argv[3], NULL, 16);
+		*ptr = crc;
+	}
 
 	return 0;
 }

common/cmd_mmc.c

+/*
+ * (C) Copyright 2003
+ * Kyle Harris, kharris@nexus-tech.net
+ *
+ * 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 <command.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_MMC)
+
+#include <mmc.h>
+
+int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	if (mmc_init (1) != 0) {
+		printf ("No MMC card found\n");
+		return 1;
+	}
+	return 0;
+}
+
+#endif	/* CFG_CMD_MMC */

common/command.c

@@ -74,6 +74,8 @@
 #include <cmd_fdos.h>
 #include <cmd_bmp.h>
 #include <cmd_portio.h>
+#include <cmd_mmc.h>
+#include <cmd_fat.h>
 
 #ifdef CONFIG_AMIGAONEG3SE
 #include <cmd_menu.h>
@@ -131,13 +133,14 @@ do_echo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 		if (i > 1)
 			putc(' ');
-		while ((c = *p++) != '\0')
+		while ((c = *p++) != '\0') {
 			if (c == '\\' && *p == 'c') {
 				putnl = 0;
 				p++;
-			}
-			else
+			} else {
 				putc(c);
+			}
+		}
 	}
 
 	if (putnl)
@@ -190,8 +193,7 @@ do_help (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 			if (cmdtp->usage)
 				puts (cmdtp->usage);
 #endif	/* CFG_LONGHELP */
-		}
-		else {
+		} else {
 			printf ("Unknown command '%s' - try 'help'"
 				" without arguments for list of all"
 				" known commands\n\n",
@@ -263,6 +265,7 @@ cmd_tbl_t cmd_tbl[] = {
 	CMD_TBL_DTT
 	CMD_TBL_ECHO
 	CMD_TBL_EEPROM
+	CMD_TBL_FAT
 	CMD_TBL_FCCINFO
 	CMD_TBL_FLERASE
 	CMD_TBL_FDC
@@ -302,6 +305,7 @@ cmd_tbl_t cmd_tbl[] = {
 	CMD_TBL_LOOP
 	CMD_TBL_JFFS2_LS
 	CMD_TBL_MCCINFO
+	CMD_TBL_MMC
 	CMD_TBL_MD
 	CMD_TBL_MEMCINFO
 #ifdef CONFIG_AMIGAONEG3SE

cpu/pxa/Makefile

@@ -26,7 +26,7 @@ include $(TOPDIR)/config.mk
 LIB	= lib$(CPU).a
 
 START	= start.o
-OBJS	= serial.o interrupts.o cpu.o i2c.o
+OBJS	= serial.o interrupts.o cpu.o i2c.o pxafb.o mmc.o
 
 all:	.depend $(START) $(LIB)
 

cpu/pxa/cpu.c

@@ -32,6 +32,7 @@
 
 #include <common.h>
 #include <command.h>
+#include <asm/arch/pxa-regs.h>
 
 int cpu_init (void)
 {
@@ -150,3 +151,21 @@ int dcache_status (void)
 {
 	return 0;					/* always off */
 }
+
+void set_GPIO_mode(int gpio_mode)
+{
+	int gpio = gpio_mode & GPIO_MD_MASK_NR;
+	int fn = (gpio_mode & GPIO_MD_MASK_FN) >> 8;
+	int gafr;
+
+	if (gpio_mode & GPIO_MD_MASK_DIR)
+	{
+		GPDR(gpio) |= GPIO_bit(gpio);
+	}
+	else
+	{
+		GPDR(gpio) &= ~GPIO_bit(gpio);
+	}
+	gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2));
+	GAFR(gpio) = gafr |  (fn  << (((gpio) & 0xf)*2));
+}

cpu/pxa/mmc.c

+/*
+ * (C) Copyright 2003
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * 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 <common.h>
+#include <mmc.h>
+#include <asm/errno.h>
+#include <asm/arch/hardware.h>
+
+#ifdef CONFIG_MMC
+
+extern int
+fat_register_read(int(*block_read)(int device, ulong blknr, ulong blkcnt, uchar *buffer));
+
+/* 
+ * FIXME needs to read cid and csd info to determine block size
+ * and other parameters
+ */
+static uchar mmc_buf[MMC_BLOCK_SIZE];
+static mmc_csd_t mmc_csd;
+static int mmc_ready = 0;
+
+
+static uchar * 
+/****************************************************/
+mmc_cmd(ushort cmd, ushort argh, ushort argl, ushort cmdat)
+/****************************************************/
+{
+	static uchar resp[20];
+	ulong status;
+	int words, i;
+
+	debug("mmc_cmd %x %x %x %x\n", cmd, argh, argl, cmdat);
+	MMC_STRPCL = MMC_STRPCL_STOP_CLK;
+	MMC_I_MASK = ~MMC_I_MASK_CLK_IS_OFF;
+	while (!(MMC_I_REG & MMC_I_REG_CLK_IS_OFF));
+	MMC_CMD    = cmd; 
+	MMC_ARGH   = argh;
+	MMC_ARGL   = argl;
+	MMC_CMDAT  = cmdat;
+	MMC_I_MASK = ~MMC_I_MASK_END_CMD_RES;
+	MMC_STRPCL = MMC_STRPCL_START_CLK;
+	while (!(MMC_I_REG & MMC_I_REG_END_CMD_RES));
+
+	status = MMC_STAT;
+	debug("MMC status %x\n", status);
+	if (status & MMC_STAT_TIME_OUT_RESPONSE)
+	{
+		return 0;
+	}
+
+	switch (cmdat & 0x3)
+	{
+		case MMC_CMDAT_R1:
+		case MMC_CMDAT_R3:
+			words = 3; 
+			break;
+
+		case MMC_CMDAT_R2:
+			words = 8; 
+			break;
+
+		default:
+			return 0;
+	}
+	for (i = words-1; i >= 0; i--)
+	{
+		ulong res_fifo = MMC_RES;
+		int offset = i << 1;
+
+		resp[offset] = ((uchar *)&res_fifo)[0];
+		resp[offset+1] = ((uchar *)&res_fifo)[1];
+	}
+#ifdef MMC_DEBUG
+	for (i=0; i<words*2; i += 2)
+	{
+		printf("MMC resp[%d] = %02x\n", i, resp[i]);
+		printf("MMC resp[%d] = %02x\n", i+1, resp[i+1]);
+	}
+#endif
+	return resp;
+}
+
+int
+/****************************************************/
+mmc_block_read(uchar *dst, ulong src, ulong len)
+/****************************************************/
+{
+	uchar *resp;
+	ushort argh, argl;
+	ulong status;
+
+	if (len == 0)
+	{
+		return 0;
+	}
+
+	debug("mmc_block_rd dst %lx src %lx len %d\n", (ulong)dst, src, len);
+
+	argh = len >> 16;
+	argl = len & 0xffff;
+
+	/* set block len */
+	resp = mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1);
+
+	/* send read command */
+	argh = src >> 16;
+	argl = src & 0xffff;
+	MMC_STRPCL = MMC_STRPCL_STOP_CLK;
+	MMC_RDTO = 0xffff;
+	MMC_NOB = 1;
+	MMC_BLKLEN = len;
+	resp = mmc_cmd(MMC_CMD_READ_BLOCK, argh, argl, 
+			MMC_CMDAT_R1|MMC_CMDAT_READ|MMC_CMDAT_BLOCK|MMC_CMDAT_DATA_EN);
+
+	
+	MMC_I_MASK = ~MMC_I_MASK_RXFIFO_RD_REQ;
+	while (len)
+	{
+		if (MMC_I_REG & MMC_I_REG_RXFIFO_RD_REQ)
+		{
+			*dst++ = MMC_RXFIFO;
+			len--;
+		}
+		status = MMC_STAT;
+		if (status & MMC_STAT_ERRORS)
+		{
+			printf("MMC_STAT error %lx\n", status);
+			return -1;
+		}
+	}
+	MMC_I_MASK = ~MMC_I_MASK_DATA_TRAN_DONE;
+	while (!(MMC_I_REG & MMC_I_REG_DATA_TRAN_DONE));
+	status = MMC_STAT;
+	if (status & MMC_STAT_ERRORS)
+	{
+		printf("MMC_STAT error %lx\n", status);
+		return -1;
+	}
+	return 0;
+}
+
+int
+/****************************************************/
+mmc_block_write(ulong dst, uchar *src, int len)
+/****************************************************/
+{
+	uchar *resp;
+	ushort argh, argl;
+	ulong status;
+
+	if (len == 0)
+	{
+		return 0;
+	}
+
+	debug("mmc_block_wr dst %lx src %lx len %d\n", dst, (ulong)src, len);
+
+	argh = len >> 16;
+	argl = len & 0xffff;
+
+	/* set block len */
+	resp = mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1);
+
+	/* send write command */
+	argh = dst >> 16;
+	argl = dst & 0xffff;
+	MMC_STRPCL = MMC_STRPCL_STOP_CLK;
+	MMC_NOB = 1;
+	MMC_BLKLEN = len;
+	resp = mmc_cmd(MMC_CMD_WRITE_BLOCK, argh, argl, 
+			MMC_CMDAT_R1|MMC_CMDAT_WRITE|MMC_CMDAT_BLOCK|MMC_CMDAT_DATA_EN);
+	
+	MMC_I_MASK = ~MMC_I_MASK_TXFIFO_WR_REQ;
+	while (len)
+	{
+		if (MMC_I_REG & MMC_I_REG_TXFIFO_WR_REQ)
+		{
+			int i, bytes = min(32,len);
+
+			for (i=0; i<bytes; i++)
+			{
+				MMC_TXFIFO = *src++;
+			}
+			if (bytes < 32)
+			{
+				MMC_PRTBUF = MMC_PRTBUF_BUF_PART_FULL;
+			}
+			len -= bytes;
+		}
+		status = MMC_STAT;
+		if (status & MMC_STAT_ERRORS)
+		{
+			printf("MMC_STAT error %lx\n", status);
+			return -1;
+		}
+	}
+	MMC_I_MASK = ~MMC_I_MASK_DATA_TRAN_DONE;
+	while (!(MMC_I_REG & MMC_I_REG_DATA_TRAN_DONE));
+	MMC_I_MASK = ~MMC_I_MASK_PRG_DONE;
+	while (!(MMC_I_REG & MMC_I_REG_PRG_DONE));
+	status = MMC_STAT;
+	if (status & MMC_STAT_ERRORS)
+	{
+		printf("MMC_STAT error %lx\n", status);
+		return -1;
+	}
+	return 0;
+}
+
+
+int
+/****************************************************/
+mmc_read(ulong src, uchar *dst, int size)
+/****************************************************/
+{
+	ulong end, part_start, part_end, part_len, aligned_start, aligned_end;
+	ulong mmc_block_size, mmc_block_address;
+
+	if (size == 0)
+	{
+		return 0;
+	}
+
+	if (!mmc_ready)
+	{
+		printf("Please initial the MMC first\n");
+		return -1;
+	}
+
+	mmc_block_size = MMC_BLOCK_SIZE;
+	mmc_block_address = ~(mmc_block_size - 1);
+
+	src -= CFG_MMC_BASE;
+	end = src + size;
+	part_start = ~mmc_block_address & src;
+	part_end = ~mmc_block_address & end;
+	aligned_start = mmc_block_address & src;
+	aligned_end = mmc_block_address & end;
+
+	/* all block aligned accesses */
+	debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+	src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+	if (part_start)
+	{
+		part_len = mmc_block_size - part_start;
+		debug("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+		src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+		if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) < 0)
+		{
+			return -1;
+		}
+		memcpy(dst, mmc_buf+part_start, part_len);
+		dst += part_len;
+		src += part_len;
+	}
+	debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+	src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+	for (; src < aligned_end; src += mmc_block_size, dst += mmc_block_size)
+	{
+		debug("al src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+		src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+		if ((mmc_block_read((uchar *)(dst), src, mmc_block_size)) < 0)
+		{
+			return -1;
+		}
+	}
+	debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+	src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+	if (part_end && src < end)
+	{
+		debug("pe src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+		src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+		if ((mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) < 0)
+		{
+			return -1;
+		}
+		memcpy(dst, mmc_buf, part_end);
+	}
+	return 0;
+}
+
+int
+/****************************************************/
+mmc_write(uchar *src, ulong dst, int size)
+/****************************************************/
+{
+	ulong end, part_start, part_end, part_len, aligned_start, aligned_end;
+	ulong mmc_block_size, mmc_block_address;
+
+	if (size == 0)
+	{
+		return 0;
+	}
+
+	if (!mmc_ready)
+	{
+		printf("Please initial the MMC first\n");
+		return -1;
+	}
+
+	mmc_block_size = MMC_BLOCK_SIZE;
+	mmc_block_address = ~(mmc_block_size - 1);
+
+	dst -= CFG_MMC_BASE;
+	end = dst + size;
+	part_start = ~mmc_block_address & dst;
+	part_end = ~mmc_block_address & end;
+	aligned_start = mmc_block_address & dst;
+	aligned_end = mmc_block_address & end;
+
+	/* all block aligned accesses */
+	debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+	src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+	if (part_start)
+	{
+		part_len = mmc_block_size - part_start;
+		debug("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+		(ulong)src, dst, end, part_start, part_end, aligned_start, aligned_end);
+		if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) < 0)
+		{
+			return -1;
+		}
+		memcpy(mmc_buf+part_start, src, part_len);
+		if ((mmc_block_write(aligned_start, mmc_buf, mmc_block_size)) < 0)
+		{
+			return -1;
+		}
+		dst += part_len;
+		src += part_len;
+	}
+	debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+	src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+	for (; dst < aligned_end; src += mmc_block_size, dst += mmc_block_size)
+	{
+		debug("al src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+		src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+		if ((mmc_block_write(dst, (uchar *)src, mmc_block_size)) < 0)
+		{
+			return -1;
+		}
+	}
+	debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+	src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+	if (part_end && dst < end)
+	{
+		debug("pe src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n",
+		src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end);
+		if ((mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) < 0)
+		{
+			return -1;
+		}
+		memcpy(mmc_buf, src, part_end);
+		if ((mmc_block_write(aligned_end, mmc_buf, mmc_block_size)) < 0)
+		{
+			return -1;
+		}
+	}
+	return 0;
+}
+
+int 
+/****************************************************/
+mmc_bread(int dev_num, ulong blknr, ulong blkcnt, uchar *dst)
+/****************************************************/
+{
+	int mmc_block_size = MMC_BLOCK_SIZE;
+	ulong src = blknr * mmc_block_size + CFG_MMC_BASE;
+
+	mmc_read(src, (uchar *)dst, blkcnt*mmc_block_size);
+	return blkcnt;
+}
+
+int
+/****************************************************/
+mmc_init(int verbose)
+/****************************************************/
+{
+ 	int retries, rc = -ENODEV;
+	uchar *resp;
+
+#ifdef CONFIG_LUBBOCK
+	set_GPIO_mode( GPIO6_MMCCLK_MD );
+	set_GPIO_mode( GPIO8_MMCCS0_MD );
+#endif
+	CKEN |= CKEN12_MMC; /* enable MMC unit clock */
+
+	mmc_csd.c_size = 0;
+
+	MMC_CLKRT  = MMC_CLKRT_0_3125MHZ;
+	MMC_RESTO  = MMC_RES_TO_MAX; 
+	MMC_SPI    = MMC_SPI_DISABLE;
+
+	/* reset */
+	retries = 10;
+	resp = mmc_cmd(0, 0, 0, 0);
+	resp = mmc_cmd(1, 0x00ff, 0xc000, MMC_CMDAT_INIT|MMC_CMDAT_BUSY|MMC_CMDAT_R3);
+	while (retries-- && resp && !(resp[4] & 0x80))
+	{
+		debug("resp %x %x\n", resp[0], resp[1]);
+		udelay(50);
+		resp = mmc_cmd(1, 0x00ff, 0xff00, MMC_CMDAT_BUSY|MMC_CMDAT_R3);
+	}
+
+	/* try to get card id */
+	resp = mmc_cmd(2, 0, 0, MMC_CMDAT_R2);
+	if (resp)
+	{
+		/* TODO configure mmc driver depending on card attributes */
+		mmc_cid_t *cid = (mmc_cid_t *)resp;
+		if (verbose)
+		{
+			printf("MMC found. Card desciption is:\n");
+			printf("Manufacturer ID = %02x%02x%02x\n", 
+							cid->id[0], cid->id[1], cid->id[2]);
+			printf("HW/FW Revision = %x %x\n",cid->hwrev, cid->fwrev);
+			cid->hwrev = cid->fwrev = 0;	/* null terminate string */
+			printf("Product Name = %s\n",cid->name);
+			printf("Serial Number = %02x%02x%02x\n", 
+							cid->sn[0], cid->sn[1], cid->sn[2]);
+			printf("Month = %d\n",cid->month);
+			printf("Year = %d\n",1997 + cid->year);
+		}
+
+		/* MMC exists, get CSD too */
+		resp = mmc_cmd(MMC_CMD_SET_RCA, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R1);
+		resp = mmc_cmd(MMC_CMD_SEND_CSD, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R2);
+		if (resp)
+		{
+			mmc_csd_t *csd = (mmc_csd_t *)resp;
+			memcpy(&mmc_csd, csd, sizeof(csd));
+			rc = 0;
+			mmc_ready = 1;
+			/* FIXME add verbose printout for csd */
+		}
+	}
+
+	MMC_CLKRT = 0;	/* 20 MHz */
+	resp = mmc_cmd(7, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R1);
+
+	fat_register_read(mmc_bread);
+
+	return rc;
+}
+
+int
+mmc_ident(block_dev_desc_t *dev)
+{
+	return 0;
+}
+
+int
+mmc2info(ulong addr)
+{
+	/* FIXME hard codes to 32 MB device */
+	if (addr >= CFG_MMC_BASE && addr < CFG_MMC_BASE + 0x02000000)
+	{
+		return 1;
+	}
+	return 0;
+}
+
+#endif

fs/Makefile

@@ -22,7 +22,7 @@
 #
 #
 
-SUBDIRS	:= jffs2 fdos
+SUBDIRS	:= jffs2 fdos fat
 
 .depend all:
 	@for dir in $(SUBDIRS) ; do \

fs/fat/Makefile

+#
+#
+# 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
+#
+
+TOPDIR=../../
+
+include $(TOPDIR)/config.mk
+
+LIB	= libfat.a
+
+AOBJS	=
+COBJS	= fat.o file.o
+
+OBJS	= $(AOBJS) $(COBJS)
+
+all:	$(LIB) $(AOBJS)
+
+$(LIB):	.depend $(OBJS)
+	$(AR) crv $@ $(OBJS)
+
+
+#########################################################################
+
+.depend:	Makefile $(AOBJS:.o=.S) $(COBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(AOBJS:.o=.S) $(COBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################

fs/fat/file.c

+/* 
+ * file.c 
+ *
+ * Mini "VFS" by Marcus Sundberg
+ *
+ * 2002-07-28 - rjones@nexus-tech.net - ported to ppcboot v1.1.6
+ * 2003-03-10 - kharris@nexus-tech.net - ported to uboot
+ *
+ * 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 <config.h>
+#include <malloc.h>
+#include <fat.h>
+#include <linux/stat.h>
+#include <linux/time.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_FAT)
+
+/* Supported filesystems */
+static const struct filesystem filesystems[] = {
+	{ file_fat_detectfs,  file_fat_ls,  file_fat_read,  "FAT" },
+};
+#define NUM_FILESYS	(sizeof(filesystems)/sizeof(struct filesystem))
+
+/* The filesystem which was last detected */
+static int current_filesystem = FSTYPE_NONE;
+
+/* The current working directory */
+#define CWD_LEN		511
+char file_cwd[CWD_LEN+1] = "/";
+
+const char *
+file_getfsname(int idx)
+{
+	if (idx < 0 || idx >= NUM_FILESYS) return NULL;
+
+	return filesystems[idx].name;
+}
+
+
+static void
+pathcpy(char *dest, const char *src)
+{
+	char *origdest = dest;
+
+	do {
+		if (dest-file_cwd >= CWD_LEN) {
+			*dest = '\0';
+			return;
+		}
+		*(dest) = *(src);
+		if (*src == '\0') {
+			if (dest-- != origdest && ISDIRDELIM(*dest)) {
+				*dest = '\0';
+			}
+			return;
+		}
+		++dest;
+		if (ISDIRDELIM(*src)) {
+			while (ISDIRDELIM(*src)) src++;
+		} else {
+			src++;
+		}
+	} while (1);
+}
+
+
+int
+file_cd(const char *path)
+{
+	if (ISDIRDELIM(*path)) {
+		while (ISDIRDELIM(*path)) path++;
+		strncpy(file_cwd+1, path, CWD_LEN-1);
+	} else {
+		const char *origpath = path;
+		char *tmpstr = file_cwd;
+		int back = 0;
+
+		while (*tmpstr != '\0') tmpstr++;
+		do {
+			tmpstr--;
+		} while (ISDIRDELIM(*tmpstr));
+
+		while (*path == '.') {
+			path++;
+			while (*path == '.') {
+				path++;
+				back++;
+			}
+			if (*path != '\0' && !ISDIRDELIM(*path)) {
+				path = origpath;
+				back = 0;
+				break;
+			}
+			while (ISDIRDELIM(*path)) path++;
+			origpath = path;
+		}
+
+		while (back--) {
+			/* Strip off path component */
+			while (!ISDIRDELIM(*tmpstr)) {
+				tmpstr--;
+			}
+			if (tmpstr == file_cwd) {
+				/* Incremented again right after the loop. */
+				tmpstr--;
+				break;
+			}
+			/* Skip delimiters */
+			while (ISDIRDELIM(*tmpstr)) tmpstr--;
+		}
+		tmpstr++;
+		if (*path == '\0') {
+			if (tmpstr == file_cwd) {
+				*tmpstr = '/';
+				tmpstr++;
+			}
+			*tmpstr = '\0';
+			return 0;
+		}
+		*tmpstr = '/';
+		pathcpy(tmpstr+1, path);
+	}
+
+	return 0;
+}
+
+	
+int
+file_detectfs(void)
+{
+	int i;
+
+	current_filesystem = FSTYPE_NONE;
+
+	for (i = 0; i < NUM_FILESYS; i++) {
+		if (filesystems[i].detect() == 0) {
+			strcpy(file_cwd, "/");
+			current_filesystem = i;
+			break;
+		}
+	}
+
+	return current_filesystem;
+}
+
+
+int
+file_ls(const char *dir)
+{
+	char fullpath[1024];
+	const char *arg;
+
+	if (current_filesystem == FSTYPE_NONE) {
+		printf("Can't list files without a filesystem!\n");
+		return -1;
+	}
+
+	if (ISDIRDELIM(*dir)) {
+		arg = dir;
+	} else {
+		sprintf(fullpath, "%s/%s", file_cwd, dir);
+		arg = fullpath;
+	}
+	return filesystems[current_filesystem].ls(arg);
+}
+
+
+long
+file_read(const char *filename, void *buffer, unsigned long maxsize)
+{
+	char fullpath[1024];
+	const char *arg;
+
+	if (current_filesystem == FSTYPE_NONE) {
+		printf("Can't load file without a filesystem!\n");
+		return -1;
+	}
+
+	if (ISDIRDELIM(*filename)) {
+		arg = filename;
+	} else {
+		sprintf(fullpath, "%s/%s", file_cwd, filename);
+		arg = fullpath;
+	}
+
+	return filesystems[current_filesystem].read(arg, buffer, maxsize);
+}
+
+#endif /* #if (CONFIG_COMMANDS & CFG_CMD_FAT) */