[PATCH] CRIS architecture update

From: "Mikael Starvik" <mikael.starvik@axis.com>

- Lots of fixes from 2.4.

- Updated for 2.6.6.

- Added IDE driver
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/cris/Kconfig

@@ -27,19 +27,11 @@ menu "General setup"
 
 source "fs/Kconfig.binfmt"
 
-config ETRAX_KGDB
-	bool "Use kernel gdb debugger"
-	---help---
-	  The CRIS version of gdb can be used to remotely debug a running
-	  Linux kernel via the serial debug port.  Provided you have gdb-cris
-	  installed, run gdb-cris vmlinux, then type
-
-	  (gdb) set remotebaud 115200           <- kgdb uses 115200 as default
-	  (gdb) target remote /dev/ttyS0        <- maybe you use another port
-
-	  This should connect you to your booted kernel (or boot it now if you
-	  didn't before).  The kernel halts when it boots, waiting for gdb if
-	  this option is turned on!
+config ETRAX_CMDLINE
+	string "Kernel command line"
+	default "root=/dev/mtdblock3"
+	help
+	  Pass additional commands to the kernel.
 
 config ETRAX_WATCHDOG
 	bool "Enable ETRAX watchdog"
@@ -99,11 +91,6 @@ config SVINTO_SIM
 	help
 	  Support the xsim ETRAX Simulator.
 
-config ETRAX200LX
-	bool "ETRAX-200LX-V32"
-	help
-	  Support CRIS V32.
-
 endchoice
 
 config ETRAX_ARCH_V10
@@ -111,11 +98,6 @@ config ETRAX_ARCH_V10
        default y if ETRAX100LX || ETRAX100LX_V2
        default n if !(ETRAX100LX || ETRAX100LX_V2) 
 
-config ETRAX_ARCH_V32
-       bool
-       default y if ETRAX200LX
-       default n if !(ETRAX200LX) 
-
 config ETRAX_DRAM_SIZE
 	int "DRAM size (dec, in MB)"
 	default "8"
@@ -128,35 +110,18 @@ config ETRAX_FLASH_BUSWIDTH
 	help
 	  Width in bytes of the Flash bus (1, 2 or 4). Is usually 2.
 
-config ETRAX_ROOT_DEVICE
-	string "Root device name"
-	default "/dev/mtdblock3"
-	help
-	  Specifies the device that should be mounted as root file system
-	  when booting from flash. The axisflashmap driver adds an additional
-	  mtd partition for the appended root file system image, so this option
-	  should normally be the mtdblock device for the partition after the
-	  last partition in the partition table.
-
-# duplicate choice configs are not yet supported, so the followinguse 
-# doesn't work:
-
 source arch/cris/arch-v10/Kconfig
 
 endmenu
 
 # bring in ETRAX built-in drivers
 menu "Drivers for built-in interfaces"
-
 source arch/cris/arch-v10/drivers/Kconfig
 
 endmenu
 
 source "drivers/base/Kconfig"
 
-# bring in Etrax built-in drivers
-source "arch/cris/drivers/Kconfig"
-
 # standard linux drivers
 source "drivers/mtd/Kconfig"
 
@@ -212,6 +177,37 @@ config PROFILE_SHIFT
 	depends on PROFILE
 	default "2"
 
+config ETRAX_KGDB
+	bool "Use kernel GDB debugger"
+	---help---
+	  The CRIS version of gdb can be used to remotely debug a running
+	  Linux kernel via the serial debug port.  Provided you have gdb-cris
+	  installed, run gdb-cris vmlinux, then type
+
+	  (gdb) set remotebaud 115200           <- kgdb uses 115200 as default
+	  (gdb) target remote /dev/ttyS0        <- maybe you use another port
+
+	  This should connect you to your booted kernel (or boot it now if you
+	  didn't before).  The kernel halts when it boots, waiting for gdb if
+	  this option is turned on!
+
+
+config DEBUG_INFO
+        bool "Compile the kernel with debug info"
+        help
+          If you say Y here the resulting kernel image will include
+          debugging info resulting in a larger kernel image.
+          Say Y here only if you plan to use gdb to debug the kernel.
+          If you don't debug the kernel, you can say N.
+
+config FRAME_POINTER
+        bool "Compile the kernel with frame pointers"
+        help
+          If you say Y here the resulting kernel image will be slightly larger
+          and slower, but it will give very useful debugging information.
+          If you don't debug the kernel, you can say N, but we may not be able
+          to solve problems without frame pointers.
+
 endmenu
 
 source "security/Kconfig"

arch/cris/Makefile

-# $Id: Makefile,v 1.15 2003/07/04 12:47:53 tobiasa Exp $
+# $Id: Makefile,v 1.20 2004/05/14 14:35:58 orjanf Exp $
 # cris/Makefile
 #
 # This file is included by the global makefile so that you can add your own
@@ -34,7 +34,7 @@ AFLAGS += -mlinux
 
 CFLAGS := $(CFLAGS) -mlinux -march=$(arch-y) -pipe
 
-ifdef CONFIG_ETRAX_KGDB
+ifdef CONFIG_FRAME_POINTER
 CFLAGS := $(subst -fomit-frame-pointer,,$(CFLAGS)) -g
 CFLAGS += -fno-omit-frame-pointer
 endif
@@ -90,10 +90,14 @@ prepare: arch/$(ARCH)/.links include/asm-$(ARCH)/.arch \
 
 # Create some links to make all tools happy
 arch/$(ARCH)/.links:
+	@rm -rf arch/$(ARCH)/drivers
 	@ln -sfn $(SARCH)/drivers arch/$(ARCH)/drivers
+	@rm -rf arch/$(ARCH)/boot
 	@ln -sfn $(SARCH)/boot arch/$(ARCH)/boot
+	@rm -rf arch/$(ARCH)/lib
 	@ln -sfn $(SARCH)/lib arch/$(ARCH)/lib
-	@ln -sfn $(SARCH)/vmlinux.lds.S arch/$(ARCH)/kernel/vmlinux.lds.S
+	@ln -sfn $(SARCH) arch/$(ARCH)/arch
+	@ln -sfn ../$(SARCH)/vmlinux.lds.S arch/$(ARCH)/kernel/vmlinux.lds.S
 	@touch $@
 
 # Create link to sub arch includes

arch/cris/arch-v10/boot/compressed/misc.c

 /*
  * misc.c
  *
- * $Id: misc.c,v 1.4 2003/04/09 05:20:45 starvik Exp $
+ * $Id: misc.c,v 1.6 2003/10/27 08:04:31 starvik Exp $
  * 
  * This is a collection of several routines from gzip-1.0.3 
  * adapted for Linux.
@@ -263,7 +263,7 @@ decompress_kernel()
 	__asm__ volatile ("move vr,%0" : "=rm" (revision));
 	if (revision < 10)
 	{
-		puts("You need an ETRAX 100LX to run linux 2.4\n");
+		puts("You need an ETRAX 100LX to run linux 2.6\n");
 		while(1);
 	}
 

arch/cris/arch-v10/defconfig

@@ -267,6 +267,7 @@ CONFIG_INET=y
 # CONFIG_BLK_DEV_ISAPNP is not set
 # CONFIG_IDE_CHIPSETS is not set
 # CONFIG_IDEDMA_AUTO is not set
+# CONFIG_BLK_DEV_IDE_MODES is not set
 
 #
 # SCSI support

arch/cris/arch-v10/drivers/Kconfig

@@ -11,29 +11,6 @@ config NET_ETHERNET
 	bool
 	depends on ETRAX_ETHERNET
 	default y
-	---help---
-	  Ethernet (also called IEEE 802.3 or ISO 8802-2) is the most common
-	  type of Local Area Network (LAN) in universities and companies.
-
-	  Common varieties of Ethernet are: 10BASE-2 or Thinnet (10 Mbps over
-	  coaxial cable, linking computers in a chain), 10BASE-T or twisted
-	  pair (10 Mbps over twisted pair cable, linking computers to central
-	  hubs), 10BASE-F (10 Mbps over optical fiber links, using hubs),
-	  100BASE-TX (100 Mbps over two twisted pair cables, using hubs),
-	  100BASE-T4 (100 Mbps over 4 standard voice-grade twisted pair
-	  cables, using hubs), 100BASE-FX (100 Mbps over optical fiber links)
-	  [the 100BASE varieties are also known as Fast Ethernet], and Gigabit
-	  Ethernet (1 Gbps over optical fiber or short copper links).
-
-	  If your Linux machine will be connected to an Ethernet and you have
-	  an Ethernet network interface card (NIC) installed in your computer,
-	  say Y here and read the Ethernet-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>. You will then also have
-	  to say Y to the driver for your particular NIC.
-
-	  Note that the answer to this question won't directly affect the
-	  kernel: saying N will just cause the configurator to skip all
-	  the questions about Ethernet network cards. If unsure, say N.
 
 choice
 	prompt "Network LED behavior"
@@ -109,6 +86,32 @@ config ETRAX_SERIAL_PORT0
 	  Normally you want this on, unless you use external DMA 1 that uses
 	  the same DMA channels.
 
+choice
+	prompt "Ser0 DMA out assignment"
+	depends on ETRAX_SERIAL_PORT0
+	default ETRAX_SERIAL_PORT0_DMA6_OUT
+
+config CONFIG_ETRAX_SERIAL_PORT0_NO_DMA_OUT
+       bool "No DMA out"
+
+config CONFIG_ETRAX_SERIAL_PORT0_DMA6_OUT
+       bool "DMA 6"
+
+endchoice
+
+choice
+	prompt "Ser0 DMA in assignment"
+	depends on ETRAX_SERIAL_PORT0
+	default ETRAX_SERIAL_PORT0_DMA7_IN
+
+config CONFIG_ETRAX_SERIAL_PORT0_NO_DMA_IN
+       bool "No DMA in"
+
+config CONFIG_ETRAX_SERIAL_PORT0_DMA7_IN
+       bool "DMA 7"
+
+endchoice
+
 choice
 	prompt "Ser0 DTR, RI, DSR and CD assignment"
 	depends on ETRAX_SERIAL_PORT0
@@ -197,6 +200,32 @@ config ETRAX_SERIAL_PORT1
 	help
 	  Enables the ETRAX 100 serial driver for ser1 (ttyS1).
 
+choice
+	prompt "Ser1 DMA out assignment"
+	depends on ETRAX_SERIAL_PORT1
+	default ETRAX_SERIAL_PORT1_DMA8_OUT
+
+config CONFIG_ETRAX_SERIAL_PORT1_NO_DMA_OUT
+       bool "No DMA out"
+
+config CONFIG_ETRAX_SERIAL_PORT1_DMA8_OUT
+       bool "DMA 8"
+
+endchoice
+
+choice
+	prompt "Ser1 DMA in assignment"
+	depends on ETRAX_SERIAL_PORT1
+	default ETRAX_SERIAL_PORT1_DMA9_IN
+
+config CONFIG_ETRAX_SERIAL_PORT1_NO_DMA_IN
+       bool "No DMA in"
+
+config CONFIG_ETRAX_SERIAL_PORT1_DMA9_IN
+       bool "DMA 9"
+
+endchoice
+
 choice
 	prompt "Ser1 DTR, RI, DSR and CD assignment"
 	depends on ETRAX_SERIAL_PORT1
@@ -288,6 +317,32 @@ config ETRAX_SERIAL_PORT2
 	help
 	  Enables the ETRAX 100 serial driver for ser2 (ttyS2).
 
+choice
+	prompt "Ser2 DMA out assignment"
+	depends on ETRAX_SERIAL_PORT2
+	default ETRAX_SERIAL_PORT2_DMA2_OUT
+
+config CONFIG_ETRAX_SERIAL_PORT2_NO_DMA_OUT
+       bool "No DMA out"
+
+config CONFIG_ETRAX_SERIAL_PORT2_DMA2_OUT
+       bool "DMA 2"
+
+endchoice
+
+choice
+	prompt "Ser2 DMA in assignment"
+	depends on ETRAX_SERIAL_PORT2
+	default ETRAX_SERIAL_PORT2_DMA3_IN
+
+config CONFIG_ETRAX_SERIAL_PORT2_NO_DMA_IN
+       bool "No DMA in"
+
+config CONFIG_ETRAX_SERIAL_PORT2_DMA3_IN
+       bool "DMA 3"
+
+endchoice
+
 choice
 	prompt "Ser2 DTR, RI, DSR and CD assignment"
 	depends on ETRAX_SERIAL_PORT2
@@ -376,6 +431,32 @@ config ETRAX_SERIAL_PORT3
 	help
 	  Enables the ETRAX 100 serial driver for ser3 (ttyS3).
 
+choice
+	prompt "Ser3 DMA out assignment"
+	depends on ETRAX_SERIAL_PORT3
+	default ETRAX_SERIAL_PORT3_DMA4_OUT
+
+config CONFIG_ETRAX_SERIAL_PORT3_NO_DMA_OUT
+       bool "No DMA out"
+
+config CONFIG_ETRAX_SERIAL_PORT3_DMA4_OUT
+       bool "DMA 4"
+
+endchoice
+
+choice
+	prompt "Ser3 DMA in assignment"
+	depends on ETRAX_SERIAL_PORT3
+	default ETRAX_SERIAL_PORT3_DMA5_IN
+
+config CONFIG_ETRAX_SERIAL_PORT3_NO_DMA_IN
+       bool "No DMA in"
+
+config CONFIG_ETRAX_SERIAL_PORT3_DMA5_IN
+       bool "DMA 5"
+
+endchoice
+
 choice
 	prompt "Ser3 DTR, RI, DSR and CD assignment"
 	depends on ETRAX_SERIAL_PORT3
@@ -466,6 +547,95 @@ config ETRAX_RS485_DISABLE_RECEIVER
 	  loopback.  Not all products are able to do this in software only.
 	  Axis 2400/2401 must disable receiver.
 
+config ETRAX_IDE
+	bool "ATA/IDE support"
+	help
+	  Enable this to get support for ATA/IDE.
+	  You can't use parallell ports or SCSI ports
+	  at the same time.
+
+# here we should add the CONFIG_'s necessary to enable the basic
+# general ide drivers so the common case does not need to go
+# into that config submenu. enable disk and CD support. others
+# need to go fiddle in the submenu..
+config IDE
+	tristate
+	depends on ETRAX_IDE
+	default y
+
+config BLK_DEV_IDE
+	tristate
+	depends on ETRAX_IDE
+	default y
+
+config BLK_DEV_IDEDISK
+	tristate
+	depends on ETRAX_IDE
+	default y
+
+config BLK_DEV_IDECD
+	tristate
+	depends on ETRAX_IDE
+	default y
+
+config BLK_DEV_IDEDMA
+	bool
+	depends on ETRAX_IDE
+	default y
+
+config DMA_NONPCI
+	bool
+	depends on ETRAX_IDE
+	default y
+
+config ETRAX_IDE_DELAY
+	int "Delay for drives to regain consciousness"
+	depends on ETRAX_IDE
+	default 15
+	help
+	  Number of seconds to wait for IDE drives to spin up after an IDE
+	  reset.
+choice
+	prompt "IDE reset pin"
+	depends on ETRAX_IDE
+	default ETRAX_IDE_PB7_RESET
+
+config ETRAX_IDE_PB7_RESET
+	bool "Port_PB_Bit_7"
+	help
+	  IDE reset on pin 7 on port B
+
+config ETRAX_IDE_G27_RESET
+        bool "Port_G_Bit_27"
+	help
+	  IDE reset on pin 27 on port G
+
+endchoice
+
+
+config ETRAX_USB_HOST
+	bool "USB host"
+	help
+	   This option enables the host functionality of the ETRAX 100LX
+	   built-in USB controller. In host mode the controller is designed
+	   for CTRL and BULK traffic only, INTR traffic may work as well
+	   however (depending on the requirements of timeliness).
+
+config USB
+       tristate
+       depends on ETRAX_USB_HOST
+       default y
+
+config ETRAX_USB_HOST_PORT1
+       bool "  USB port 1 enabled"
+       depends on ETRAX_USB_HOST
+       default n
+
+config ETRAX_USB_HOST_PORT2
+       bool "  USB port 2 enabled"
+       depends on ETRAX_USB_HOST
+       default n
+
 config ETRAX_AXISFLASHMAP
 	bool "Axis flash-map support"
 	depends on ETRAX_ARCH_V10

arch/cris/arch-v10/drivers/Makefile

@@ -10,5 +10,7 @@ obj-$(CONFIG_ETRAX_I2C_EEPROM)          += eeprom.o
 obj-$(CONFIG_ETRAX_GPIO) 	        += gpio.o
 obj-$(CONFIG_ETRAX_DS1302)              += ds1302.o
 obj-$(CONFIG_ETRAX_PCF8563)		+= pcf8563.o
+obj-$(CONFIG_ETRAX_IDE)                 += ide.o
+obj-$(CONFIG_ETRAX_USB_HOST)            += usb-host.o
 
 

arch/cris/arch-v10/drivers/axisflashmap.c

@@ -11,6 +11,9 @@
  * partition split defined below.
  *
  * $Log: axisflashmap.c,v $
+ * Revision 1.8  2004/05/14 07:58:03  starvik
+ * Merge of changes from 2.4
+ *
  * Revision 1.6  2003/07/04 08:27:37  starvik
  * Merge of Linux 2.5.74
  *
@@ -153,6 +156,9 @@
 /* From head.S */
 extern unsigned long romfs_start, romfs_length, romfs_in_flash;
 
+/* The master mtd for the entire flash. */
+struct mtd_info* axisflash_mtd = NULL;
+
 /* Map driver functions. */
 
 static __u8 flash_read8(struct map_info *map, unsigned long ofs)
@@ -314,7 +320,8 @@ static struct mtd_info *probe_cs(struct map_info *map_cs)
 {
 	struct mtd_info *mtd_cs = NULL;
 
-	printk("%s: Probing a 0x%08lx bytes large window at 0x%08lx.\n",
+	printk(KERN_INFO
+               "%s: Probing a 0x%08lx bytes large window at 0x%08lx.\n",
 	       map_cs->name, map_cs->size, map_cs->map_priv_1);
 
 #ifdef CONFIG_MTD_AMDSTD
@@ -398,7 +405,7 @@ static int __init init_axis_flash(void)
 	struct mtd_info *mymtd;
 	int err = 0;
 	int pidx = 0;
-	struct partitiontable_head *ptable_head;
+	struct partitiontable_head *ptable_head = NULL;
 	struct partitiontable_entry *ptable;
 	int use_default_ptable = 1; /* Until proven otherwise. */
 	const char *pmsg = "  /dev/flash%d at 0x%08x, size 0x%08x\n";
@@ -407,19 +414,22 @@ static int __init init_axis_flash(void)
 		/* There's no reason to use this module if no flash chip can
 		 * be identified. Make sure that's understood.
 		 */
-		panic("axisflashmap found no flash chip!\n");
+		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;
 	}
 
-	printk("%s: 0x%08x bytes of flash memory.\n",
-	       mymtd->name, mymtd->size);
-
-	mymtd->owner = THIS_MODULE;
-
-	ptable_head = (struct partitiontable_head *)(FLASH_CACHED_ADDR +
-		      CONFIG_ETRAX_PTABLE_SECTOR + PARTITION_TABLE_OFFSET);
+	if (mymtd) {
+		mymtd->owner = THIS_MODULE;
+		ptable_head = (struct partitiontable_head *)(FLASH_CACHED_ADDR +
+			      CONFIG_ETRAX_PTABLE_SECTOR +
+			      PARTITION_TABLE_OFFSET);
+	}
 	pidx++;  /* First partition is always set to the default. */
 
-	if ((ptable_head->magic == PARTITION_TABLE_MAGIC)
+	if (ptable_head && (ptable_head->magic == PARTITION_TABLE_MAGIC)
 	    && (ptable_head->size <
 		(MAX_PARTITIONS * sizeof(struct partitiontable_entry) +
 		PARTITIONTABLE_END_MARKER_SIZE))
@@ -454,7 +464,7 @@ static int __init init_axis_flash(void)
 		ptable_ok = (csum == ptable_head->checksum);
 
 		/* Read the entries and use/show the info.  */
-		printk(" Found a%s partition table at 0x%p-0x%p.\n",
+		printk(KERN_INFO " Found a%s partition table at 0x%p-0x%p.\n",
 		       (ptable_ok ? " valid" : "n invalid"), ptable_head,
 		       max_addr);
 
@@ -486,22 +496,25 @@ static int __init init_axis_flash(void)
 		axis_partitions[pidx].offset = romfs_start - FLASH_CACHED_ADDR;
 		axis_partitions[pidx].mask_flags |= MTD_WRITEABLE;
 
-		printk(" Adding readonly flash partition for romfs image:\n");
+		printk(KERN_INFO
+                       " Adding readonly flash partition for romfs image:\n");
 		printk(pmsg, pidx, axis_partitions[pidx].offset,
 		       axis_partitions[pidx].size);
 		pidx++;
 	}
 
-	if (use_default_ptable) {
-		printk(" 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);
-	}
+        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);
+		}
 
-	if (err) {
-		panic("axisflashmap could not add MTD partitions!\n");
+		if (err) {
+			panic("axisflashmap could not add MTD partitions!\n");
+		}
 	}
 
 	if (!romfs_in_flash) {
@@ -522,7 +535,7 @@ static int __init init_axis_flash(void)
 			      "mtd_info!\n");
 		}
 
-		printk(" Adding RAM partition for romfs image:\n");
+		printk(KERN_INFO " Adding RAM partition for romfs image:\n");
 		printk(pmsg, pidx, romfs_start, romfs_length);
 
 		err = mtdram_init_device(mtd_ram, (void*)romfs_start, 
@@ -539,3 +552,5 @@ static int __init init_axis_flash(void)
 
 /* This adds the above to the kernels init-call chain. */
 module_init(init_axis_flash);
+
+EXPORT_SYMBOL(axisflash_mtd);

arch/cris/arch-v10/drivers/ds1302.c

@@ -4,9 +4,18 @@
 *!
 *! DESCRIPTION: Implements an interface for the DS1302 RTC through Etrax I/O
 *!
-*! Functions exported: ds1302_readreg, ds1302_writereg, ds1302_init, get_rtc_status
+*! Functions exported: ds1302_readreg, ds1302_writereg, ds1302_init
 *!
 *! $Log: ds1302.c,v $
+*! Revision 1.13  2004/05/28 09:26:59  starvik
+*! Modified I2C initialization to work in 2.6.
+*!
+*! Revision 1.12  2004/05/14 07:58:03  starvik
+*! Merge of changes from 2.4
+*!
+*! Revision 1.10  2004/02/04 09:25:12  starvik
+*! Merge of Linux 2.6.2
+*!
 *! Revision 1.9  2003/07/04 08:27:37  starvik
 *! Merge of Linux 2.5.74
 *!
@@ -114,7 +123,7 @@
 *!
 *! (C) Copyright 1999, 2000, 2001  Axis Communications AB, LUND, SWEDEN
 *!
-*! $Id: ds1302.c,v 1.9 2003/07/04 08:27:37 starvik Exp $
+*! $Id: ds1302.c,v 1.13 2004/05/28 09:26:59 starvik Exp $
 *!
 *!***************************************************************************/
 
@@ -283,12 +292,23 @@ ds1302_readreg(int reg)
 void
 ds1302_writereg(int reg, unsigned char val) 
 {
-	ds1302_wenable();
-	start();
-	out_byte(0x80 | (reg << 1)); /* write register */
-	out_byte(val);
-	stop();
-	ds1302_wdisable();
+#ifndef CONFIG_ETRAX_RTC_READONLY
+	int do_writereg = 1;
+#else
+	int do_writereg = 0;
+
+	if (reg == RTC_TRICKLECHARGER)
+		do_writereg = 1;
+#endif
+
+	if (do_writereg) {
+		ds1302_wenable();
+		start();
+		out_byte(0x80 | (reg << 1)); /* write register */
+		out_byte(val);
+		stop();
+		ds1302_wdisable();
+	}
 }
 
 void
@@ -426,20 +446,33 @@ rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
 			tcs_val = RTC_TCR_PATTERN | (tcs_val & 0x0F);
 			ds1302_writereg(RTC_TRICKLECHARGER, tcs_val);
 			return 0;
-		}                
+		}
+		case RTC_VLOW_RD:
+		{
+			/* TODO:
+			 * Implement voltage low detection support
+			 */
+			printk(KERN_WARNING "DS1302: RTC Voltage Low detection"
+			       " is not supported\n");
+			return 0;
+		}
+		case RTC_VLOW_SET:
+		{
+			/* TODO:
+			 * Nothing to do since Voltage Low detection is not supported
+			 */
+			return 0;
+		}
 		default:
 			return -ENOIOCTLCMD;
 	}
 }
 
-int
-get_rtc_status(char *buf) 
+static void
+print_rtc_status(void)
 {
-	char *p;
 	struct rtc_time tm;
 
-	p = buf;
-
 	get_rtc_time(&tm);
 
 	/*
@@ -447,16 +480,12 @@ get_rtc_status(char *buf)
 	 * time or for Universal Standard Time (GMT). Probably local though.
 	 */
 
-	p += sprintf(p,
-		"rtc_time\t: %02d:%02d:%02d\n"
-		"rtc_date\t: %04d-%02d-%02d\n",
-		tm.tm_hour, tm.tm_min, tm.tm_sec,
-		tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
-
-	return  p - buf;
+	printk(KERN_INFO "rtc_time\t: %02d:%02d:%02d\n",
+	       tm.tm_hour, tm.tm_min, tm.tm_sec);
+	printk(KERN_INFO "rtc_date\t: %04d-%02d-%02d\n",
+	       tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
 }
 
-
 /* The various file operations we support. */
 
 static struct file_operations rtc_fops = {
@@ -487,11 +516,10 @@ ds1302_probe(void)
 	out_byte(0xc1); /* read RAM byte 0 */
 
 	if((res = in_byte()) == MAGIC_PATTERN) {
-		char buf[100];
 		stop();
 		ds1302_wdisable();
-		printk("%s: RTC found.\n", ds1302_name);
-		printk("%s: SDA, SCL, RST on PB%i, PB%i, %s%i\n",
+		printk(KERN_INFO "%s: RTC found.\n", ds1302_name);
+		printk(KERN_INFO "%s: SDA, SCL, RST on PB%i, PB%i, %s%i\n",
 		       ds1302_name,
 		       CONFIG_ETRAX_DS1302_SDABIT,
 		       CONFIG_ETRAX_DS1302_SCLBIT,
@@ -501,12 +529,10 @@ ds1302_probe(void)
 		       "PB",
 #endif
 		       CONFIG_ETRAX_DS1302_RSTBIT);
-                get_rtc_status(buf);
-                printk(buf);
+                print_rtc_status();
 		retval = 1;
 	} else {
 		stop();
-		printk("%s: RTC not found.\n", ds1302_name);
 		retval = 0;
 	}
 
@@ -518,7 +544,9 @@ ds1302_probe(void)
 
 int __init
 ds1302_init(void) 
-{ 
+{
+	i2c_init();
+
 	if (!ds1302_probe()) {
 #ifdef CONFIG_ETRAX_DS1302_RST_ON_GENERIC_PORT
 #if CONFIG_ETRAX_DS1302_RSTBIT == 27
@@ -539,16 +567,20 @@ ds1302_init(void)
 				   (IO_STATE(R_GEN_CONFIG, g0dir, out)));    
     		*R_GEN_CONFIG = genconfig_shadow;
 #endif
-		if (!ds1302_probe())
+		if (!ds1302_probe()) {
+			printk(KERN_WARNING "%s: RTC not found.\n", ds1302_name);
       			return -1;
+		}
 #else
+		printk(KERN_WARNING "%s: RTC not found.\n", ds1302_name);
     		return -1;
 #endif
   	}
-  
 	/* Initialise trickle charger */
 	ds1302_writereg(RTC_TRICKLECHARGER,
 			RTC_TCR_PATTERN |(CONFIG_ETRAX_DS1302_TRICKLE_CHARGE & 0x0F));
+        /* Start clock by resetting CLOCK_HALT */
+	ds1302_writereg(RTC_SECONDS, (ds1302_readreg(RTC_SECONDS) & 0x7F));
 	return 0;
 }
 

arch/cris/arch-v10/drivers/eeprom.c

@@ -20,6 +20,9 @@
 *!                                  in the spin-lock.
 *!
 *!  $Log: eeprom.c,v $
+*!  Revision 1.10  2003/09/11 07:29:48  starvik
+*!  Merge of Linux 2.6.0-test5
+*!
 *!  Revision 1.9  2003/07/04 08:27:37  starvik
 *!  Merge of Linux 2.5.74
 *!
@@ -441,9 +444,9 @@ int __init eeprom_init(void)
 static int eeprom_open(struct inode * inode, struct file * file)
 {
 
-  if(iminor(inode) != EEPROM_MINOR_NR)
+  if(MINOR(inode->i_rdev) != EEPROM_MINOR_NR)
      return -ENXIO;
-  if(imajor(inode) != EEPROM_MAJOR_NR)
+  if(MAJOR(inode->i_rdev) != EEPROM_MAJOR_NR)
      return -ENXIO;
 
   if( eeprom.size > 0 )

arch/cris/arch-v10/drivers/gpio.c

-/* $Id: gpio.c,v 1.8 2003/07/04 08:27:37 starvik Exp $
+/* $Id: gpio.c,v 1.11 2004/05/14 07:58:03 starvik Exp $
  *
  * Etrax general port I/O device
  *
@@ -9,6 +9,12 @@
  *             Johan Adolfsson  (read/set directions, write, port G)
  *
  * $Log: gpio.c,v $
+ * Revision 1.11  2004/05/14 07:58:03  starvik
+ * Merge of changes from 2.4
+ *
+ * Revision 1.9  2003/09/11 07:29:48  starvik
+ * Merge of Linux 2.6.0-test5
+ *
  * Revision 1.8  2003/07/04 08:27:37  starvik
  * Merge of Linux 2.5.74
  *
@@ -183,6 +189,7 @@ struct gpio_private {
 static struct gpio_private *alarmlist = 0;
 
 static int gpio_some_alarms = 0; /* Set if someone uses alarm */
+static unsigned long gpio_pa_irq_enabled_mask = 0;
 
 /* Port A and B use 8 bit access, but Port G is 32 bit */
 #define NUM_PORTS (GPIO_MINOR_B+1)
@@ -252,13 +259,19 @@ gpio_poll(struct file *file,
 	unsigned long data;
 	poll_wait(file, &priv->alarm_wq, wait);
 	if (priv->minor == GPIO_MINOR_A) {
+		unsigned long flags;
 		unsigned long tmp;
 		data = *R_PORT_PA_DATA;
 		/* PA has support for high level interrupt -
 		 * lets activate for those low and with highalarm set
 		 */
 		tmp = ~data & priv->highalarm & 0xFF;
-		*R_IRQ_MASK1_SET = (tmp << R_IRQ_MASK1_SET__pa0__BITNR);
+		tmp = (tmp << R_IRQ_MASK1_SET__pa0__BITNR);
+		save_flags(flags); cli();
+		gpio_pa_irq_enabled_mask |= tmp;
+		*R_IRQ_MASK1_SET = tmp;
+		restore_flags(flags);
+
 	} else if (priv->minor == GPIO_MINOR_B)
 		data = *R_PORT_PB_DATA;
 	else if (priv->minor == GPIO_MINOR_G)
@@ -312,12 +325,15 @@ gpio_pa_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	unsigned long tmp;
 	/* Find what PA interrupts are active */
-	tmp = (*R_IRQ_READ1 >> R_IRQ_READ1__pa0__BITNR) & 0xFF;
+	tmp = (*R_IRQ_READ1);
+
+	/* Find those that we have enabled */
+	tmp &= gpio_pa_irq_enabled_mask;
+
 	/* Clear them.. */
-	/* NOTE: Maybe we need to be more careful here if some other
-	 * driver uses PA interrupt as well?
-	 */
-	*R_IRQ_MASK1_CLR = (tmp << R_IRQ_MASK1_CLR__pa0__BITNR);
+	*R_IRQ_MASK1_CLR = tmp;
+	gpio_pa_irq_enabled_mask &= ~tmp;
+
 	if (gpio_some_alarms) {
 		return IRQ_RETVAL(etrax_gpio_wake_up_check());
 	}
@@ -386,7 +402,7 @@ static int
 gpio_open(struct inode *inode, struct file *filp)
 {
 	struct gpio_private *priv;
-	int p = iminor(inode);
+	int p = MINOR(inode->i_rdev);
 
 	if (p > GPIO_MINOR_LAST)
 		return -EINVAL;
@@ -479,6 +495,7 @@ unsigned long inline setget_input(struct gpio_private *priv, unsigned long arg)
 		return ~(*priv->dir_shadow) & 0xFF; /* Only 8 bits */
 	} else if (priv->minor == GPIO_MINOR_G) {
 		/* We must fiddle with R_GEN_CONFIG to change dir */
+		save_flags(flags); cli();
 		if (((arg & dir_g_in_bits) != arg) && 
 		    (arg & changeable_dir_g)) {
 			arg &= changeable_dir_g;
@@ -503,16 +520,17 @@ unsigned long inline setget_input(struct gpio_private *priv, unsigned long arg)
 				dir_g_in_bits |= (1<<24);
 				dir_g_out_bits &= ~(1<<24);
 			}
-			printk("gpio: SETINPUT on port G set "
-				"genconfig to 0x%08lX "
-				"in_bits: 0x%08lX "
-				"out_bits: 0x%08lX\n", 
-			       (unsigned long)genconfig_shadow, 
-			       dir_g_in_bits, dir_g_out_bits);
+			D(printk(KERN_INFO "gpio: SETINPUT on port G set "
+				 "genconfig to 0x%08lX "
+				 "in_bits: 0x%08lX "
+				 "out_bits: 0x%08lX\n",
+			         (unsigned long)genconfig_shadow,
+			         dir_g_in_bits, dir_g_out_bits));
 			*R_GEN_CONFIG = genconfig_shadow;
 			/* Must be a >120 ns delay before writing this again */
 				
 		}
+		restore_flags(flags);
 		return dir_g_in_bits;
 	}
 	return 0;
@@ -529,6 +547,7 @@ unsigned long inline setget_output(struct gpio_private *priv, unsigned long arg)
 		return *priv->dir_shadow;
 	} else if (priv->minor == GPIO_MINOR_G) {
 		/* We must fiddle with R_GEN_CONFIG to change dir */			
+		save_flags(flags); cli();
 		if (((arg & dir_g_out_bits) != arg) &&
 		    (arg & changeable_dir_g)) {
 			/* Set bits in genconfig to set to output */
@@ -552,15 +571,16 @@ unsigned long inline setget_output(struct gpio_private *priv, unsigned long arg)
 				dir_g_out_bits |= (1<<24);
 				dir_g_in_bits &= ~(1<<24);
 			}
-			printk("gpio: SETOUTPUT on port G set "
-				"genconfig to 0x%08lX "
-				"in_bits: 0x%08lX "
-				"out_bits: 0x%08lX\n", 
-			       (unsigned long)genconfig_shadow, 
-			       dir_g_in_bits, dir_g_out_bits);
+			D(printk(KERN_INFO "gpio: SETOUTPUT on port G set "
+				 "genconfig to 0x%08lX "
+				 "in_bits: 0x%08lX "
+				 "out_bits: 0x%08lX\n",
+			         (unsigned long)genconfig_shadow,
+			         dir_g_in_bits, dir_g_out_bits));
 			*R_GEN_CONFIG = genconfig_shadow;
 			/* Must be a >120 ns delay before writing this again */
 		}
+		restore_flags(flags);
 		return dir_g_out_bits & 0x7FFFFFFF;
 	}
 	return 0;
@@ -625,6 +645,20 @@ gpio_ioctl(struct inode *inode, struct file *file,
 		// clear alarm for bits with 1 in arg
 		priv->highalarm &= ~arg;
 		priv->lowalarm  &= ~arg;
+		{
+			/* Must update gpio_some_alarms */
+			struct gpio_private *p = alarmlist;
+			int some_alarms;
+			some_alarms = 0;
+			while (p) {
+				if (p->highalarm | p->lowalarm) {
+					some_alarms = 1;
+					break;
+				}
+				p = p->next;
+			}
+			gpio_some_alarms = some_alarms;
+		}
 		break;
 	case IO_READDIR: /* Use IO_SETGET_INPUT/OUTPUT instead! */
 		/* Read direction 0=input 1=output */
@@ -844,9 +878,9 @@ static void __init gpio_init_port_g(void)
 	dir_g_in_bits |= (~dir_g_shadow & changeable_dir_g);
 
 
-	printk("GPIO port G: in_bits: 0x%08lX out_bits: 0x%08lX val: %08lX\n",
+	printk(KERN_INFO "GPIO port G: in_bits: 0x%08lX out_bits: 0x%08lX val: %08lX\n",
 	       dir_g_in_bits, dir_g_out_bits, (unsigned long)*R_PORT_G_DATA);
-	printk("GPIO port G: dir: %08lX changeable: %08lX\n", 
+	printk(KERN_INFO "GPIO port G: dir: %08lX changeable: %08lX\n",
 	       dir_g_shadow, changeable_dir_g);
 }
 
@@ -883,7 +917,7 @@ gpio_init(void)
 
 #endif
 	gpio_init_port_g();
-	printk("ETRAX 100LX GPIO driver v2.5, (c) 2001, 2002 Axis Communications AB\n");
+	printk(KERN_INFO "ETRAX 100LX GPIO driver v2.5, (c) 2001, 2002 Axis Communications AB\n");
 	/* We call etrax_gpio_wake_up_check() from timer interrupt and
 	 * from cpu_idle() in kernel/process.c
 	 * The check in cpu_idle() reduces latency from ~15 ms to ~6 ms
@@ -891,11 +925,11 @@ gpio_init(void)
 	 */  
 	if (request_irq(TIMER0_IRQ_NBR, gpio_poll_timer_interrupt,
 			SA_SHIRQ | SA_INTERRUPT,"gpio poll", NULL)) {
-		printk("err: timer0 irq for gpio\n");
+		printk(KERN_CRIT "err: timer0 irq for gpio\n");
 	}
 	if (request_irq(PA_IRQ_NBR, gpio_pa_interrupt,
 			SA_SHIRQ | SA_INTERRUPT,"gpio PA", NULL)) {
-		printk("err: PA irq for gpio\n");
+		printk(KERN_CRIT "err: PA irq for gpio\n");
 	}
 	
 

arch/cris/arch-v10/drivers/i2c.c

@@ -12,6 +12,12 @@
 *!                                 don't use PB_I2C if DS1302 uses same bits,
 *!                                 use PB.
 *! $Log: i2c.c,v $
+*! Revision 1.7  2004/05/28 09:26:59  starvik
+*! Modified I2C initialization to work in 2.6.
+*!
+*! Revision 1.6  2004/05/14 07:58:03  starvik
+*! Merge of changes from 2.4
+*!
 *! Revision 1.4  2002/12/11 13:13:57  starvik
 *! Added arch/ to v10 specific includes
 *! Added fix from Linux 2.4 in serial.c (flush_to_flip_buffer)
@@ -63,7 +69,7 @@
 *! (C) Copyright 1999-2002 Axis Communications AB, LUND, SWEDEN
 *!
 *!***************************************************************************/
-/* $Id: i2c.c,v 1.4 2002/12/11 13:13:57 starvik Exp $ */
+/* $Id: i2c.c,v 1.7 2004/05/28 09:26:59 starvik Exp $ */
 
 /****************** INCLUDE FILES SECTION ***********************************/
 
@@ -310,6 +316,12 @@ i2c_inbyte(void)
 	}
 	i2c_clk(I2C_CLOCK_HIGH);
 	i2c_delay(CLOCK_HIGH_TIME);
+
+        /*
+	 * we leave the clock low, getbyte is usually followed
+	 * by sendack/nack, they assume the clock to be low
+	 */
+        i2c_clk(I2C_CLOCK_LOW);
 	return aBitByte;
 }
 
@@ -371,6 +383,13 @@ i2c_getack(void)
 		i2c_delay(CLOCK_HIGH_TIME/2);
 	}
 
+	/*
+	 * our clock is high now, make sure data is low
+	 * before we enable our output. If we keep data high
+	 * and enable output, we would generate a stop condition.
+	 */
+	i2c_data(I2C_DATA_LOW);
+
 	/*
 	 * end clock pulse
 	 */
@@ -426,6 +445,37 @@ i2c_sendack(void)
 	i2c_dir_in();
 }
 
+/*#---------------------------------------------------------------------------
+*#
+*# FUNCTION NAME: i2c_sendnack
+*#
+*# DESCRIPTION  : Sends NACK on received data
+*#
+*#--------------------------------------------------------------------------*/
+void
+i2c_sendnack(void)
+{
+	/*
+	 * enable output
+	 */
+	i2c_delay(CLOCK_LOW_TIME);
+	i2c_dir_out();
+	/*
+	 * set data high
+	 */
+	i2c_data(I2C_DATA_HIGH);
+	/*
+	 * generate clock pulse
+	 */
+	i2c_delay(CLOCK_HIGH_TIME/6);
+	i2c_clk(I2C_CLOCK_HIGH);
+	i2c_delay(CLOCK_HIGH_TIME);
+	i2c_clk(I2C_CLOCK_LOW);
+	i2c_delay(CLOCK_LOW_TIME);
+
+	i2c_dir_in();
+}
+
 /*#---------------------------------------------------------------------------
 *#
 *# FUNCTION NAME: i2c_writereg
@@ -489,7 +539,7 @@ i2c_writereg(unsigned char theSlave, unsigned char theReg,
 	} while(error && cntr--);
 
 	i2c_delay(CLOCK_LOW_TIME);
-	
+
 	return -error;
 }
 
@@ -557,7 +607,8 @@ i2c_readreg(unsigned char theSlave, unsigned char theReg)
 		 */
 		b = i2c_inbyte();
 		/*
-		 * send Ack
+		 * last received byte needs to be nacked
+		 * instead of acked
 		 */
 		i2c_sendack();
 		/*
@@ -634,11 +685,9 @@ static struct file_operations i2c_fops = {
 	.release  = i2c_release,
 };
 
-static int __init
+int __init
 i2c_init(void)
 {
-	int res;
-
 	/* Setup and enable the Port B I2C interface */
 
 #ifndef CONFIG_ETRAX_I2C_USES_PB_NOT_PB_I2C
@@ -656,21 +705,28 @@ i2c_init(void)
 			  IO_STATE(R_PORT_PB_DIR, dir0, input)  |
 			  IO_STATE(R_PORT_PB_DIR, dir1, output));
 
-	/* register char device */
+	return 0;
+}
+
+static int __init
+i2c_register(void)
+{
+	int res;
 
-	res = register_chrdev(I2C_MAJOR, i2c_name, &i2c_fops);
+	i2c_init();
+  	res = register_chrdev(I2C_MAJOR, i2c_name, &i2c_fops);
 	if(res < 0) {
 		printk(KERN_ERR "i2c: couldn't get a major number.\n");
 		return res;
 	}
 
-	printk("I2C driver v2.2, (c) 1999-2001 Axis Communications AB\n");
+	printk(KERN_INFO "I2C driver v2.2, (c) 1999-2001 Axis Communications AB\n");
 	
 	return 0;
 }
 
-/* this makes sure that i2c_init is called during boot */
+/* this makes sure that i2c_register is called during boot */
 
-module_init(i2c_init);
+module_init(i2c_register);
 
 /****************** END OF FILE i2c.c ********************************/

arch/cris/arch-v10/drivers/i2c.h

-/* $Id: i2c.h,v 1.2 2002/11/18 13:16:06 starvik Exp $ */
+/* $Id: i2c.h,v 1.3 2004/05/28 09:26:59 starvik Exp $ */
+
+int i2c_init(void);
 
 /* High level I2C actions */
 int i2c_writereg(unsigned char theSlave, unsigned char theReg, unsigned char theValue);

arch/cris/arch-v10/drivers/pcf8563.c

@@ -15,7 +15,7 @@
  *
  * Author: Tobias Anderberg <tobiasa@axis.com>.
  *
- * $Id: pcf8563.c,v 1.1 2002/12/12 08:27:26 starvik Exp $
+ * $Id: pcf8563.c,v 1.4 2004/05/28 09:26:59 starvik Exp $
  */
 
 #include <linux/config.h>
@@ -28,6 +28,7 @@
 #include <linux/fs.h>
 #include <linux/ioctl.h>
 #include <linux/delay.h>
+#include <linux/bcd.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -39,7 +40,7 @@
 #define PCF8563_MAJOR 121		/* Local major number. */
 #define DEVICE_NAME "rtc"		/* Name which is registered in /proc/devices. */
 #define PCF8563_NAME "PCF8563"
-#define DRIVER_VERSION "$Revision: 1.1 $"
+#define DRIVER_VERSION "$Revision: 1.4 $"
 
 /* I2C bus slave registers. */
 #define RTC_I2C_READ		0xa3
@@ -85,7 +86,12 @@ pcf8563_readreg(int reg)
 void
 pcf8563_writereg(int reg, unsigned char val) 
 {
-	i2c_writereg(RTC_I2C_WRITE,reg,val);
+#ifdef CONFIG_ETRAX_RTC_READONLY
+	if (reg == RTC_CONTROL1 || (reg >= RTC_SECONDS && reg <= RTC_YEAR))
+		return;
+#endif
+
+	rtc_write(reg, val);
 }
 
 void
@@ -120,6 +126,9 @@ int __init
 pcf8563_init(void)
 {
 	unsigned char ret;
+
+	i2c_init();
+
 	/*
 	 * First of all we need to reset the chip. This is done by
 	 * clearing control1, control2 and clk freq, clear the 
@@ -152,14 +161,6 @@ pcf8563_init(void)
 	
 	if (rtc_write(RTC_WEEKDAY_ALARM, 0x00) < 0)
 		goto err;
-
-	if (register_chrdev(PCF8563_MAJOR, DEVICE_NAME, &pcf8563_fops) < 0) {
-		printk(KERN_INFO "%s: Unable to get major numer %d for RTC device.\n", 
-		       PCF8563_NAME, PCF8563_MAJOR);
-		return -1;
-	}
-
-	printk(KERN_INFO "%s Real-Time Clock Driver, %s\n", PCF8563_NAME, DRIVER_VERSION);
         
 	/* Check for low voltage, and warn about it.. */
 	if (rtc_read(RTC_SECONDS) & 0x80)
@@ -210,9 +211,11 @@ pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned
 			break;
 		case RTC_SET_TIME:
 			{
+#ifdef CONFIG_ETRAX_RTC_READONLY
+				return -EPERM;
+#else
 				int leap;
 				int century;
-				unsigned long flags;
 				struct rtc_time tm;
 
 				memset(&tm, 0, sizeof (struct rtc_time));
@@ -256,8 +259,35 @@ pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned
 				rtc_write(RTC_SECONDS, tm.tm_sec);
 
 				return 0;
+#endif /* !CONFIG_ETRAX_RTC_READONLY */
 			}
-			break;
+
+		case RTC_VLOW_RD:
+		{
+			int vl_bit = 0;
+
+			if (rtc_read(RTC_SECONDS) & 0x80) {
+				vl_bit = 1;
+				printk(KERN_WARNING "%s: RTC Voltage Low - reliable "
+				       "date/time information is no longer guaranteed!\n",
+				       PCF8563_NAME);
+			}
+			if (copy_to_user((int *) arg, &vl_bit, sizeof(int)))
+				return -EFAULT;
+
+			return 0;
+		}
+
+		case RTC_VLOW_SET:
+		{
+			/* Clear the VL bit in the seconds register */
+			int ret = rtc_read(RTC_SECONDS);
+
+			rtc_write(RTC_SECONDS, (ret & 0x7F));
+
+			return 0;
+		}
+
 		default:
 				return -ENOTTY;
 	}
@@ -265,5 +295,19 @@ pcf8563_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned
 	return 0;
 }
 
-module_init(pcf8563_init);
+static int __init
+pcf8563_register(void)
+{
+	pcf8563_init();
+	if (register_chrdev(PCF8563_MAJOR, DEVICE_NAME, &pcf8563_fops) < 0) {
+		printk(KERN_INFO "%s: Unable to get major numer %d for RTC device.\n",
+		       PCF8563_NAME, PCF8563_MAJOR);
+		return -1;
+	}
+
+	printk(KERN_INFO "%s Real-Time Clock Driver, %s\n", PCF8563_NAME, DRIVER_VERSION);
+        return 0;
+}
+
+module_init(pcf8563_register);
 module_exit(pcf8563_exit);

arch/cris/arch-v10/kernel/setup.c

-/* $Id: setup.c,v 1.1 2002/12/11 15:42:02 starvik Exp $
+/*
  *
  *  linux/arch/cris/arch-v10/kernel/setup.c
  *
@@ -94,3 +94,10 @@ int show_cpuinfo(struct seq_file *m, void *v)
 }
 
 #endif /* CONFIG_PROC_FS */
+
+void
+show_etrax_copyright(void)
+{
+	printk(KERN_INFO
+               "Linux/CRIS port on ETRAX 100LX (c) 2001 Axis Communications AB\n");
+}

include/asm-cris/local.h

+#include <asm-generic/local.h>