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authorHolger Hans Peter Freyther <zecke@selfish.org>2011-10-09 14:44:31 +0200
committerHolger Hans Peter Freyther <zecke@selfish.org>2011-10-09 15:17:28 +0200
commit861a0b11aaf3d7a2c1ef8577c592bfc02e59dcbd (patch)
tree3f08bc97361bb988b7ddf60eb4c5e78a5c50cc16
parent7bc3aeb314bb892f1881595b6f96c80cbca67efb (diff)
misc: Add driver/ and loader/ source found on ArchLinux
http://aur.archlinux.org/packages.php?ID=31596&detail=1 links to http://txrxio.net/wp/basket/makingthings/sam7utils-0.2.1.tar.gz that contains the driver and the loader sourcecode. I am not sure how this relates to loader256_data.h and loader128_data.h
-rw-r--r--driver/Makefile11
-rw-r--r--driver/at91.c363
-rw-r--r--loader/at91.h61
-rw-r--r--loader/bin2c.c30
-rw-r--r--loader/crt0.S28
-rw-r--r--loader/loader.c48
-rw-r--r--loader/loader.lds128
7 files changed, 669 insertions, 0 deletions
diff --git a/driver/Makefile b/driver/Makefile
new file mode 100644
index 0000000..6450a81
--- /dev/null
+++ b/driver/Makefile
@@ -0,0 +1,11 @@
+ifneq ($(KERNELRELEASE),)
+obj-m := at91.o
+else
+KDIR := /lib/modules/$(shell uname -r)/build
+PWD := $(shell pwd)
+
+default:
+ $(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules
+endif
+
+modules: at91.o \ No newline at end of file
diff --git a/driver/at91.c b/driver/at91.c
new file mode 100644
index 0000000..b864665
--- /dev/null
+++ b/driver/at91.c
@@ -0,0 +1,363 @@
+/*
+ * at91 boot program driver
+ *
+ * Copyright (C) 2005 Erik Gilling
+ * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
+ *
+ * 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, version 2.
+ *
+ * This driver is based on drivers/usb/usb-skeleton.c
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kref.h>
+#include <asm/uaccess.h>
+#include <linux/usb.h>
+
+
+/* Define these values to match your devices */
+#define USB_VENDOR_ID_ATMEL 0x03eb
+#define USB_DEVICE_ID_SAM7BOOT 0x6124
+
+/* table of devices that work with this driver */
+static struct usb_device_id at91_table [] = {
+ { USB_DEVICE( USB_VENDOR_ID_ATMEL, USB_DEVICE_ID_SAM7BOOT ) },
+ { } /* Terminating entry */
+};
+MODULE_DEVICE_TABLE (usb, at91_table);
+
+
+/* Get a minor range for your devices from the usb maintainer */
+#define USB_AT91_MINOR_BASE 192
+
+/* Structure to hold all of our device specific stuff */
+struct usb_at91 {
+ struct usb_device * udev; /* the usb device for this device */
+ struct usb_interface * interface; /* the interface for this device */
+ unsigned char * bulk_in_buffer; /* the buffer to receive data */
+ size_t bulk_in_size; /* the size of the receive buffer */
+ __u8 bulk_in_endpointAddr; /* the address of the bulk in endpoint */
+ __u8 bulk_out_endpointAddr; /* the address of the bulk out endpoint */
+ struct kref kref;
+};
+#define to_at91_dev(d) container_of(d, struct usb_at91, kref)
+
+static struct usb_driver at91_driver;
+
+static void at91_delete(struct kref *kref)
+{
+ struct usb_at91 *dev = to_at91_dev(kref);
+
+ usb_put_dev(dev->udev);
+ kfree (dev->bulk_in_buffer);
+ kfree (dev);
+}
+
+static int at91_open(struct inode *inode, struct file *file)
+{
+ struct usb_at91 *dev;
+ struct usb_interface *interface;
+ int subminor;
+ int retval = 0;
+
+ subminor = iminor(inode);
+
+ interface = usb_find_interface(&at91_driver, subminor);
+ if (!interface) {
+ err ("%s - error, can't find device for minor %d",
+ __FUNCTION__, subminor);
+ retval = -ENODEV;
+ goto exit;
+ }
+
+ dev = usb_get_intfdata(interface);
+ if (!dev) {
+ retval = -ENODEV;
+ goto exit;
+ }
+
+ /* increment our usage count for the device */
+ kref_get(&dev->kref);
+
+ /* save our object in the file's private structure */
+ file->private_data = dev;
+
+exit:
+ return retval;
+}
+
+static int at91_release(struct inode *inode, struct file *file)
+{
+ struct usb_at91 *dev;
+
+ dev = (struct usb_at91 *)file->private_data;
+ if (dev == NULL)
+ return -ENODEV;
+
+ /* decrement the count on our device */
+ kref_put(&dev->kref, at91_delete);
+ return 0;
+}
+
+static ssize_t at91_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
+{
+ struct usb_at91 *dev;
+ int retval = 0;
+ int bytes_read;
+
+ dev = (struct usb_at91 *)file->private_data;
+
+ /* do a blocking bulk read to get data from the device */
+ retval = usb_bulk_msg(dev->udev,
+ usb_rcvbulkpipe(dev->udev, dev->bulk_in_endpointAddr),
+ dev->bulk_in_buffer,
+ min(dev->bulk_in_size, count),
+ &bytes_read, 10000);
+
+ /* if the read was successful, copy the data to userspace */
+ if (!retval) {
+ if (copy_to_user(buffer, dev->bulk_in_buffer, bytes_read))
+ retval = -EFAULT;
+ else
+ retval = bytes_read;
+ }
+
+ return retval;
+}
+
+static void at91_write_bulk_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct usb_at91 *dev;
+
+ dev = (struct usb_at91 *)urb->context;
+
+ /* sync/async unlink faults aren't errors */
+ if (urb->status &&
+ !(urb->status == -ENOENT ||
+ urb->status == -ECONNRESET ||
+ urb->status == -ESHUTDOWN)) {
+ dbg("%s - nonzero write bulk status received: %d",
+ __FUNCTION__, urb->status);
+ }
+
+ /* free up our allocated buffer */
+ usb_buffer_free(urb->dev, urb->transfer_buffer_length,
+ urb->transfer_buffer, urb->transfer_dma);
+}
+
+static ssize_t at91_write(struct file *file, const char *user_buffer, size_t count, loff_t *ppos)
+{
+ struct usb_at91 *dev;
+ int retval = 0;
+ struct urb *urb = NULL;
+ char *buf = NULL;
+
+ dev = (struct usb_at91 *)file->private_data;
+
+ /* verify that we actually have some data to write */
+ if (count == 0)
+ goto exit;
+
+ /* create a urb, and a buffer for it, and copy the data to the urb */
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb) {
+ retval = -ENOMEM;
+ goto error;
+ }
+
+ buf = usb_buffer_alloc(dev->udev, count, GFP_KERNEL, &urb->transfer_dma);
+ if (!buf) {
+ retval = -ENOMEM;
+ goto error;
+ }
+
+ if (copy_from_user(buf, user_buffer, count)) {
+ retval = -EFAULT;
+ goto error;
+ }
+
+ /* initialize the urb properly */
+ usb_fill_bulk_urb(urb, dev->udev,
+ usb_sndbulkpipe(dev->udev, dev->bulk_out_endpointAddr),
+ buf, count, at91_write_bulk_callback, dev);
+ urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ /* send the data out the bulk port */
+ retval = usb_submit_urb(urb, GFP_KERNEL);
+ if (retval) {
+ err("%s - failed submitting write urb, error %d", __FUNCTION__, retval);
+ goto error;
+ }
+
+ /* release our reference to this urb, the USB core will eventually free it entirely */
+ usb_free_urb(urb);
+
+exit:
+ return count;
+
+error:
+ usb_buffer_free(dev->udev, count, buf, urb->transfer_dma);
+ usb_free_urb(urb);
+ return retval;
+}
+
+static struct file_operations at91_fops = {
+ .owner = THIS_MODULE,
+ .read = at91_read,
+ .write = at91_write,
+ .open = at91_open,
+ .release = at91_release,
+};
+
+/*
+ * usb class driver info in order to get a minor number from the usb core,
+ * and to have the device registered with devfs and the driver core
+ */
+static struct usb_class_driver at91_class = {
+ .name = "usb/at91_%d",
+ .fops = &at91_fops,
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15)
+ .mode = S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH,
+#endif
+ .minor_base = USB_AT91_MINOR_BASE,
+};
+
+static int at91_probe(struct usb_interface *interface, const struct usb_device_id *id)
+{
+ struct usb_at91 *dev = NULL;
+ struct usb_host_interface *iface_desc;
+ struct usb_endpoint_descriptor *endpoint;
+ size_t buffer_size;
+ int i;
+ int retval = -ENOMEM;
+
+ /* allocate memory for our device state and initialize it */
+ dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+ if (dev == NULL) {
+ err("Out of memory");
+ goto error;
+ }
+ memset(dev, 0x00, sizeof(*dev));
+ kref_init(&dev->kref);
+
+ dev->udev = usb_get_dev(interface_to_usbdev(interface));
+ dev->interface = interface;
+
+ /* set up the endpoint information */
+ /* use only the first bulk-in and bulk-out endpoints */
+ iface_desc = interface->cur_altsetting;
+ for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+ endpoint = &iface_desc->endpoint[i].desc;
+
+ if (!dev->bulk_in_endpointAddr &&
+ ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+ == USB_DIR_IN) &&
+ ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ == USB_ENDPOINT_XFER_BULK)) {
+ /* we found a bulk in endpoint */
+ buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
+ dev->bulk_in_size = buffer_size;
+ dev->bulk_in_endpointAddr = endpoint->bEndpointAddress;
+ dev->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
+ if (!dev->bulk_in_buffer) {
+ err("Could not allocate bulk_in_buffer");
+ goto error;
+ }
+ }
+
+ if (!dev->bulk_out_endpointAddr &&
+ ((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK)
+ == USB_DIR_OUT) &&
+ ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
+ == USB_ENDPOINT_XFER_BULK)) {
+ /* we found a bulk out endpoint */
+ dev->bulk_out_endpointAddr = endpoint->bEndpointAddress;
+ }
+ }
+ if (!(dev->bulk_in_endpointAddr && dev->bulk_out_endpointAddr)) {
+ err("Could not find both bulk-in and bulk-out endpoints");
+ goto error;
+ }
+
+ /* save our data pointer in this interface device */
+ usb_set_intfdata(interface, dev);
+
+ /* we can register the device now, as it is ready */
+ retval = usb_register_dev(interface, &at91_class);
+ if (retval) {
+ /* something prevented us from registering this driver */
+ err("Not able to get a minor for this device.");
+ usb_set_intfdata(interface, NULL);
+ goto error;
+ }
+
+ /* let the user know what node this device is now attached to */
+ info("USB At91 device now attached to AT91-%d", interface->minor);
+ return 0;
+
+error:
+ if (dev)
+ kref_put(&dev->kref, at91_delete);
+ return retval;
+}
+
+static void at91_disconnect(struct usb_interface *interface)
+{
+ struct usb_at91 *dev;
+ int minor = interface->minor;
+
+ /* prevent at91_open() from racing at91_disconnect() */
+ lock_kernel();
+
+ dev = usb_get_intfdata(interface);
+ usb_set_intfdata(interface, NULL);
+
+ /* give back our minor */
+ usb_deregister_dev(interface, &at91_class);
+
+ unlock_kernel();
+
+ /* decrement our usage count */
+ kref_put(&dev->kref, at91_delete);
+
+ info("USB At91eton #%d now disconnected", minor);
+}
+
+static struct usb_driver at91_driver = {
+ .owner = THIS_MODULE,
+ .name = "at91",
+ .probe = at91_probe,
+ .disconnect = at91_disconnect,
+ .id_table = at91_table,
+};
+
+static int __init usb_at91_init(void)
+{
+ int result;
+
+ /* register this driver with the USB subsystem */
+ result = usb_register(&at91_driver);
+ if (result)
+ err("usb_register failed. Error number %d", result);
+
+ return result;
+}
+
+static void __exit usb_at91_exit(void)
+{
+ /* deregister this driver with the USB subsystem */
+ usb_deregister(&at91_driver);
+}
+
+module_init (usb_at91_init);
+module_exit (usb_at91_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/loader/at91.h b/loader/at91.h
new file mode 100644
index 0000000..5f38a53
--- /dev/null
+++ b/loader/at91.h
@@ -0,0 +1,61 @@
+/*
+ * loader/at91.h
+ *
+ * Copyright (C) 2006 Erik Gilling, all rights reserved
+ *
+ * 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, version 2.
+ *
+ */
+
+#define AT91_FLASH_ADDR ((uint32_t *) 0x100000)
+
+typedef unsigned int uint32_t;
+typedef signed int int32_t;
+
+typedef unsigned short uint16_t;
+typedef signed short int16_t;
+
+typedef unsigned char uint8_t;
+typedef signed char int8_t;
+
+typedef volatile uint32_t arm_reg_t;
+
+typedef struct {
+ arm_reg_t rcr; /* 00 - Remap Control Register */
+ arm_reg_t asr; /* 04 - Abort Status Rebister */
+ arm_reg_t aasr; /* 08 - Abort Address Status Register */
+ arm_reg_t res[21]; /* 0C..5C - Reserved */
+ arm_reg_t fmr; /* 60 - Flash Mode Register */
+ arm_reg_t fcr; /* 64 - Flash Command Register */
+ arm_reg_t fsr; /* 68 - Flash Status Register */
+} at91_mc_t;
+
+extern volatile at91_mc_t mc;
+
+#define AT91_MC_FMR_FRDY (1<<0)
+#define AT91_MC_FMR_LOCKE (1<<2)
+#define AT91_MC_FMR_PROGE (1<<3)
+#define AT91_MC_FMR_NEBP (1<<7)
+#define AT91_MC_FMR_WAIT_STATE_1_2 (0<<8)
+#define AT91_MC_FMR_WAIT_STATE_2_3 (1<<8)
+#define AT91_MC_FMR_WAIT_STATE_3_4 (2<<8)
+#define AT91_MC_FMR_WAIT_STATE_4_4 (3<<8)
+#define AT91_MC_FMR_FMCN( x ) (((x)&0xff) << 16)
+
+
+#define AT91_MC_FCR_FCMD_NOP 0x0
+#define AT91_MC_FCR_FCMD_WP 0x1
+#define AT91_MC_FCR_FCMD_SLB 0x2
+#define AT91_MC_FCR_FCMD_WPL 0x3
+#define AT91_MC_FCR_FCMD_CLB 0x4
+#define AT91_MC_FCR_FCMD_EA 0x8
+#define AT91_MC_FCR_FCMD_SGPB 0xb
+#define AT91_MC_FCR_FCMD_CGPB 0xd
+#define AT91_MC_FCR_FCMD_SSB 0xf
+
+#define AT91_MC_FCR_PAGEN( x ) (((x)&0x3ff)<<8)
+
+#define AT91_MC_FCR_KEY (0x5A << 24)
+
diff --git a/loader/bin2c.c b/loader/bin2c.c
new file mode 100644
index 0000000..9e16991
--- /dev/null
+++ b/loader/bin2c.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+
+int main( int argc, char *argv[] )
+{
+ char *data_name = "data";
+ int c;
+ int i=0;
+
+ if( argc == 2 ) {
+ data_name = argv[1];
+ }
+
+ printf( "uint8_t %s[] = {\n", data_name );
+
+ while( (c = getchar()) >= 0 ) {
+ if( i== 0 ) {
+ printf( "\t" );
+ } else if( i%8 == 0 ) {
+ printf( ",\n\t" );
+ } else {
+ printf( ", " );
+ }
+ i++;
+ printf( "0x%02x", c );
+ }
+
+ printf( "\n};\n" );
+
+ return 0;
+}
diff --git a/loader/crt0.S b/loader/crt0.S
new file mode 100644
index 0000000..bb0a94f
--- /dev/null
+++ b/loader/crt0.S
@@ -0,0 +1,28 @@
+//
+// loader/crt0.S
+//
+// Copyright (C) 2006 Erik Gilling, all rights reserved
+//
+// 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, version 2.
+//
+//
+ .EQU STACK, 0x201C00
+
+ .code 32
+ .align 2
+
+ .global _entry
+ .func _entry
+_entry:
+ // init stack
+ ldr sp, =STACK
+
+ // save lr
+ stmfd sp!, {lr}
+
+ bl main
+
+ ldmia sp!, {r0}
+ bx r0
diff --git a/loader/loader.c b/loader/loader.c
new file mode 100644
index 0000000..2dc67ff
--- /dev/null
+++ b/loader/loader.c
@@ -0,0 +1,48 @@
+/*
+ * loader/loader.c
+ *
+ * Copyright (C) 2006 Erik Gilling, all rights reserved
+ *
+ * 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, version 2.
+ *
+ */
+
+#include "at91.h"
+
+// SAM-BA apears to write the following data to 0x201400
+//
+// 0x00: data0
+// 0x01: data1
+// ...
+// PAGE_SIZE-1: last data byte
+// PAGE_SIZE : page number to write
+
+
+#define SAMBA_PAGE_BUFF ((uint32_t *) 0x201400)
+
+int main( void )
+{
+ int i;
+ uint32_t *page_buff = SAMBA_PAGE_BUFF;
+ // keep this in units of 32 bit words
+ int page_num = *(page_buff+PAGE_SIZE/4);
+ int page_offset = page_num * PAGE_SIZE/4;
+
+ // wait for mc to be ready
+ while( !(mc.fsr & AT91_MC_FMR_FRDY) ) { }
+
+ // write samba page buffer to flash buffer
+ for( i=0 ; i < (PAGE_SIZE/4) ; i++ ) {
+ AT91_FLASH_ADDR[ page_offset + i ] = page_buff[i];
+ }
+
+ // write page
+ mc.fcr = AT91_MC_FCR_FCMD_WP | AT91_MC_FCR_PAGEN(page_num) |
+ AT91_MC_FCR_KEY;
+
+ // dont wait for mc to be ready here so that flash ops can stack
+
+ return 0;
+}
diff --git a/loader/loader.lds b/loader/loader.lds
new file mode 100644
index 0000000..32fcf50
--- /dev/null
+++ b/loader/loader.lds
@@ -0,0 +1,128 @@
+/***********************************************************************/
+/* */
+/* ROM.ld: Linker Script File */
+/* */
+/***********************************************************************/
+ENTRY(_entry)
+
+MEMORY
+{
+ LOADER(rwx) : ORIGIN = 0x00201600, LENGTH = 0xEA00
+}
+
+/* Section Definitions */
+SECTIONS
+{
+
+ /* first section is .text which is used for code */
+ .text :
+ {
+ _text = .;
+ PROVIDE (text = _text);
+ *crt0.o (.text) /* Startup code */
+ *(.text .text.*) /* remaining code */
+ *(.gnu.linkonce.t.*)
+ *(.glue_7)
+ *(.glue_7t)
+ *(.gcc_except_table)
+ *(.rodata) /* read-only data (constants) */
+ *(.rodata*)
+ *(.gnu.linkonce.r.*)
+ } > LOADER
+
+ . = ALIGN(4);
+
+ _etext = . ;
+ PROVIDE (etext = .);
+
+ /* .data section which is used for initialized data */
+ .data : AT (_etext)
+ {
+ _data = .;
+ *(.data)
+ *(.data.*)
+ *(.gnu.linkonce.d*)
+ SORT(CONSTRUCTORS) /* mt 4/2005 */
+ } > LOADER
+
+ . = ALIGN(4);
+ _edata = . ;
+ PROVIDE (edata = .);
+
+ /* .bss section which is used for uninitialized data */
+ .bss (NOLOAD) :
+ {
+ __bss_start = . ;
+ __bss_start__ = . ;
+ *(.bss)
+ *(.gnu.linkonce.b*)
+ *(COMMON)
+ . = ALIGN(4);
+ } > LOADER
+
+ . = ALIGN(4);
+ __bss_end__ = . ;
+ PROVIDE (__bss_end = .);
+
+
+
+ _end = . ;
+ PROVIDE (end = .);
+
+ /* Stabs debugging sections. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ .stab.excl 0 : { *(.stab.excl) }
+ .stab.exclstr 0 : { *(.stab.exclstr) }
+ .stab.index 0 : { *(.stab.index) }
+ .stab.indexstr 0 : { *(.stab.indexstr) }
+ .comment 0 : { *(.comment) }
+ /* DWARF debug sections.
+ Symbols in the DWARF debugging sections are relative to the beginning
+ of the section so we begin them at 0. */
+ /* DWARF 1 */
+ .debug 0 : { *(.debug) }
+ .line 0 : { *(.line) }
+ /* GNU DWARF 1 extensions */
+ .debug_srcinfo 0 : { *(.debug_srcinfo) }
+ .debug_sfnames 0 : { *(.debug_sfnames) }
+ /* DWARF 1.1 and DWARF 2 */
+ .debug_aranges 0 : { *(.debug_aranges) }
+ .debug_pubnames 0 : { *(.debug_pubnames) }
+ /* DWARF 2 */
+ .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
+ .debug_abbrev 0 : { *(.debug_abbrev) }
+ .debug_line 0 : { *(.debug_line) }
+ .debug_frame 0 : { *(.debug_frame) }
+ .debug_str 0 : { *(.debug_str) }
+ .debug_loc 0 : { *(.debug_loc) }
+ .debug_macinfo 0 : { *(.debug_macinfo) }
+ /* SGI/MIPS DWARF 2 extensions */
+ .debug_weaknames 0 : { *(.debug_weaknames) }
+ .debug_funcnames 0 : { *(.debug_funcnames) }
+ .debug_typenames 0 : { *(.debug_typenames) }
+ .debug_varnames 0 : { *(.debug_varnames) }
+}
+
+
+PROVIDE(tc = 0xFFFA0000);
+PROVIDE(udp = 0xFFFB0000);
+PROVIDE(twi = 0xFFFB8000);
+PROVIDE(usart0 = 0xFFFC0000);
+PROVIDE(usart1 = 0xFFFC4000);
+PROVIDE(pwmc = 0xFFFCC000);
+PROVIDE(ssc = 0xFFFD4000);
+PROVIDE(adc = 0xFFFD8000);
+PROVIDE(spi = 0xFFFE0000);
+PROVIDE(aic = 0xFFFFF000);
+PROVIDE(dbgu = 0xFFFFF200);
+PROVIDE(pioa = 0xFFFFF400);
+PROVIDE(pmc = 0xFFFFFC00);
+PROVIDE(rstc = 0xFFFFFD00);
+PROVIDE(rtt = 0xFFFFFD20);
+PROVIDE(pit = 0xFFFFFD30);
+PROVIDE(wdt = 0xFFFFFD40);
+PROVIDE(vreg = 0xFFFFFD60);
+PROVIDE(mc = 0xFFFFFF00);
+
+