bsps: Move startup files to bsps

Adjust build support files to new directory layout.

This patch is a part of the BSP source reorganization.

Update #3285.

5 files changed, 7 insertions, 592 deletions

diff --git a/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am b/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am
index a94f30f667..f0fdf86cf8 100644
--- a/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/mvme3100/Makefile.am
@@ -3,7 +3,7 @@ ACLOCAL_AMFLAGS = -I ../../../../aclocal
 include $(top_srcdir)/../../../../automake/compile.am
 include $(top_srcdir)/../../bsp.am
 
-dist_project_lib_DATA = startup/bsp_specs
+dist_project_lib_DATA = ../../../../../../bsps/powerpc/mvme3100/start/bsp_specs
 
 
 noinst_PROGRAMS =
@@ -31,17 +31,17 @@ rtems_crti.$(OBJEXT): ../../../../../../bsps/powerpc/shared/start/rtems_crti.S
 project_lib_DATA += rtems_crti.$(OBJEXT)
 
 project_lib_DATA += linkcmds
-dist_project_lib_DATA += ../shared/startup/linkcmds.share
+dist_project_lib_DATA += ../../../../../../bsps/powerpc/shared/start/linkcmds.share
 
 project_lib_LIBRARIES = librtemsbsp.a
 librtemsbsp_a_SOURCES =
 
 # startup
-librtemsbsp_a_SOURCES += startup/bspstart.c
-librtemsbsp_a_SOURCES += startup/misc.c
-librtemsbsp_a_SOURCES += ../shared/startup/bspgetworkarea.c
-librtemsbsp_a_SOURCES += ../shared/startup/zerobss.c
-librtemsbsp_a_SOURCES += ../shared/startup/sbrk.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/mvme3100/start/bspstart.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/mvme3100/start/misc.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/start/bspgetworkarea.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/start/zerobss.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/powerpc/shared/start/sbrk.c
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/getentropy/getentropy-cpucounter.c
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspfatal-default.c
 librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspreset-empty.c
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/startup/bsp_specs b/c/src/lib/libbsp/powerpc/mvme3100/startup/bsp_specs
deleted file mode 100644
index 2625609327..0000000000
--- a/c/src/lib/libbsp/powerpc/mvme3100/startup/bsp_specs
+++ /dev/null
@@ -1,9 +0,0 @@
-%rename endfile old_endfile
-%rename startfile old_startfile
-
-*startfile:
-%{!qrtems: %(old_startfile)} \
-%{!nostdlib: %{qrtems: ecrti%O%s rtems_crti%O%s crtbegin.o%s}}
-
-*endfile:
-%{!qrtems: %(old_endfile)} %{qrtems: crtend.o%s ecrtn.o%s}
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/startup/bspstart.c b/c/src/lib/libbsp/powerpc/mvme3100/startup/bspstart.c
deleted file mode 100644
index 27b483332c..0000000000
--- a/c/src/lib/libbsp/powerpc/mvme3100/startup/bspstart.c
+++ /dev/null
@@ -1,440 +0,0 @@
-/*
- *  This routine does the bulk of the system initialization.
- */
-
-/*
- *  COPYRIGHT (c) 1989-1998.
- *  On-Line Applications Research Corporation (OAR).
- *
- *  The license and distribution terms for this file may be
- *  found in the file LICENSE in this distribution or at
- *  http://www.rtems.org/license/LICENSE.
- *
- *  Modified to support the MCP750.
- *  Modifications Copyright (C) 1999 Eric Valette. valette@crf.canon.fr
- *
- *  Modified for mvme3100 by T. Straumann
- */
-
-#include <string.h>
-#include <stdlib.h>
-#include <inttypes.h>
-
-#include <rtems.h>
-#include <bsp.h>
-#include <bsp/bootcard.h>
-#include <rtems/bspIo.h>
-#include <rtems/counter.h>
-#include <rtems/sysinit.h>
-#include <libcpu/spr.h>
-#include <libcpu/io.h>
-#include <libcpu/e500_mmu.h>
-#include <bsp/uart.h>
-#include <bsp/irq.h>
-#include <bsp/pci.h>
-#include <bsp/vpd.h>
-#include <libcpu/cpuIdent.h>
-#include <bsp/vectors.h>
-#include <bsp/VME.h>
-#include <rtems/powerpc/powerpc.h>
-
-#define SHOW_MORE_INIT_SETTINGS
-#undef  DEBUG
-
-#define NumberOf(arr) (sizeof(arr)/sizeof(arr[0]))
-
-#ifdef  DEBUG
-#define STATIC
-#else
-#define STATIC static
-#endif
-
-extern unsigned long __rtems_end[];
-extern unsigned      ppc_exc_lock_std, ppc_exc_gpr3_std;
-
-/*
- * Copy Additional boot param passed by boot loader
- */
-#define CMDLINE_BUF_SIZE  2048
-
-static char cmdline_buf[CMDLINE_BUF_SIZE] = {0};
-char *BSP_commandline_string         = cmdline_buf;
-
-/*
- * Vital Board data Start using DATA RESIDUAL
- */
-uint32_t bsp_clicks_per_usec         = 0;
-/*
- * Total memory using RESIDUAL DATA
- */
-unsigned int BSP_mem_size            = 0;
-/*
- * PCI Bus Frequency
- */
-unsigned int BSP_pci_bus_frequency   = 0xdeadbeef;
-/*
- * PPC Bus Frequency
- */
-unsigned int BSP_bus_frequency       = 0;
-/*
- * processor clock frequency
- */
-unsigned int BSP_processor_frequency = 0;
-/*
- * Time base divisior (how many tick for 1 second).
- */
-unsigned int BSP_time_base_divisor   = 8000; /* if external RTC clock unused (HID0) */
-
-/* Board identification string */
-char BSP_productIdent[20]            = {0};
-char BSP_serialNumber[20]            = {0};
-
-/* VPD appends an extra char -- what for ? */
-char BSP_enetAddr0[7]                = {0};
-char BSP_enetAddr1[7]                = {0};
-char BSP_enetAddr2[7]                = {0};
-
-static void
-prether(char *b, int idx)
-{
-int i;
-  printk("Ethernet %i                  %02X", idx, *b++);
-  for ( i=0; i<5; i++ )
-    printk(":%02X",*b++);
-  printk("\n");
-}
-
-BSP_output_char_function_type     BSP_output_char = BSP_output_char_via_serial;
-BSP_polling_getchar_function_type BSP_poll_char = NULL;
-
-char *rtems_progname;
-
-/*
- *  Use the shared implementations of the following routines
- */
-char *save_boot_params(
-  void *r3,
-  void *r4,
-  void *r5,
-  char *cmdline_start,
-  char *cmdline_end
-)
-{
-
-  strncpy(cmdline_buf, cmdline_start, CMDLINE_BUF_SIZE);
-  cmdline_buf[CMDLINE_BUF_SIZE - 1] ='\0';
-  return cmdline_buf;
-}
-
-#define CS_CONFIG_CS_EN (1<<31)
-#define CS_BNDS_SA(x)  ((((uint32_t)(x))>>(31-15)) & 0xff)
-#define CS_BNDS_EA(x)  ((((uint32_t)(x))>>(31-31)) & 0xff)
-
-static inline uint32_t
-_ccsr_rd32(uint32_t off)
-{
-  return in_be32( (volatile uint32_t *)(BSP_8540_CCSR_BASE + off) );
-}
-
-static inline void
-_ccsr_wr32(uint32_t off, uint32_t val)
-{
-  out_be32( (volatile uint32_t *)(BSP_8540_CCSR_BASE + off), val );
-}
-
-
-STATIC uint32_t
-BSP_get_mem_size( void )
-{
-  int i;
-  uint32_t  cs_bnds, cs_config;
-  uint32_t  memsz=0;
-  uint32_t  v;
-
-  for ( cs_bnds = 0x2000, cs_config=0x2080, i=0; i<4; i++, cs_bnds+=8, cs_config+=4 ) {
-    if ( CS_CONFIG_CS_EN & _ccsr_rd32( cs_config ) ) {
-      v = _ccsr_rd32( cs_bnds );
-
-      memsz += CS_BNDS_EA(v) - CS_BNDS_SA(v) + 1;
-    }
-  }
-  return memsz << 24;
-}
-
-STATIC void
-BSP_calc_freqs( void )
-{
-  uint32_t  porpllsr   = _ccsr_rd32( 0xe0000 );
-  unsigned  plat_ratio = (porpllsr >> (31-30)) & 0x1f;
-  unsigned    e500_ratio = (porpllsr >> (31-15)) & 0x3f;
-
-  switch ( plat_ratio ) {
-    case  2: case  3: case  4: case  5: case  6:
-    case  8: case  9: case 10: case 12: case 16:
-    /* supported ratios */
-      BSP_bus_frequency = BSP_pci_bus_frequency * plat_ratio;
-    break;
-
-    default:
-      rtems_panic("Unknown PLL sys-clock ratio; something's wrong here");
-  }
-
-  switch ( e500_ratio ) {
-    case 4: case 5: case 6: case 7:
-      BSP_processor_frequency = (BSP_pci_bus_frequency * e500_ratio) >> 1;
-    break;
-
-    default:
-      rtems_panic("Unknown PLL e500-clock ratio; something's wrong here");
-  }
-
-  printk("Core Complex Bus (CCB) Clock Freq: %10u Hz\n", BSP_bus_frequency);
-  printk("CPU Clock Freq:                    %10u Hz\n", BSP_processor_frequency);
-}
-
-/*
- *  bsp_start
- *
- *  This routine does the bulk of the system initialization.
- */
-
-#include <libcpu/spr.h>
-
-SPR_RW(HID1)
-
-void bsp_start( void )
-{
-  unsigned char       *stack;
-  uintptr_t            intrStackStart;
-  uintptr_t            intrStackSize;
-  char                *chpt;
-  int                  i;
-  ppc_cpu_id_t         myCpu;
-  ppc_cpu_revision_t   myCpuRevision;
-  E500_tlb_va_cache_t *tlb;
-
-VpdBufRec          vpdData [] = {
- { key: ProductIdent, instance: 0, buf: BSP_productIdent, buflen: sizeof(BSP_productIdent) - 1 },
- { key: SerialNumber, instance: 0, buf: BSP_serialNumber, buflen: sizeof(BSP_serialNumber) - 1 },
- { key: BusClockHz,   instance: 0, buf: &BSP_pci_bus_frequency, buflen: sizeof(BSP_pci_bus_frequency)  },
- { key: EthernetAddr, instance: 0, buf: BSP_enetAddr0, buflen: sizeof(BSP_enetAddr0) },
- { key: EthernetAddr, instance: 1, buf: BSP_enetAddr1, buflen: sizeof(BSP_enetAddr1) },
- { key: EthernetAddr, instance: 2, buf: BSP_enetAddr2, buflen: sizeof(BSP_enetAddr2) },
- VPD_END
-};
-
-  /* Intersperse messages with actions to help locate problems */
-  printk("-----------------------------------------\n");
-
-  /*
-   * Get CPU identification dynamically. Note that the get_ppc_cpu_type()
-   * function store the result in global variables so that it can be used
-   * later...
-   */
-  myCpu = get_ppc_cpu_type();
-  myCpuRevision = get_ppc_cpu_revision();
-
-  printk("Welcome to %s\n", _RTEMS_version);
-  printk("BSP: %s, CVS Release ($Name$)\n", "mvme3100");
-
-  /*
-   * the initial stack  has aready been set to this value in start.S
-   * so there is no need to set it in r1 again... It is just for info
-   * so that It can be printed without accessing R1.
-   */
-  asm volatile("mr %0, 1":"=r"(stack));
-
-  /* tag the bottom */
-  *((uint32_t*)stack) = 0;
-
-  /*
-   * Initialize the interrupt related settings.
-   */
-  intrStackStart = (uintptr_t) __rtems_end;
-  intrStackSize = rtems_configuration_get_interrupt_stack_size();
-
-  /*
-   * Initialize default raw exception handlers.
-   */
-  ppc_exc_initialize(intrStackStart, intrStackSize);
-
-  printk("CPU 0x%x - rev 0x%x\n", myCpu, myCpuRevision);
-
-#ifdef SHOW_MORE_INIT_SETTINGS
-  printk("Additionnal boot options are %s\n", BSP_commandline_string);
-  printk("Initial system stack at %" PRIxPTR "\n", (uintptr_t) stack);
-  printk("Software IRQ stack starts at %x with size %u\n", intrStackStart, intrStackSize);
-#endif
-
-#ifdef SHOW_MORE_INIT_SETTINGS
-  printk("Going to start PCI buses scanning and initialization\n");
-#endif
-
-  BSP_mem_size            = BSP_get_mem_size();
-
-  {
-    /* memory-select errors were disabled in 'start.S';
-     * motload has all TLBs mapping a possible larger area as
-     * memory (not-guarded, caching-enabled) than actual physical
-     * memory is available.
-     * In case of speculative loads this may cause 'memory-select' errors
-     * which seem to raise 'core_fault_in' (found no description in
-     * the manual but I experienced this problem).
-     * Such errors (if HID1[RFXE] is clear) may *stall* execution
-     * leading to mysterious 'hangs'.
-     *
-     * Here we remove all mappings, re-enable memory-select
-     * errors and make sure we enable HID1[RFXE] to avoid
-     * stalls (since we don't implement handling individual
-     * error-handling interrupts).
-     */
-
-    /* enable machine check for bad bus errors */
-    _write_HID1( _read_HID1() | 0x20000 );
-
-    rtems_e500_initlb();
-
-    for ( i=0, tlb=rtems_e500_tlb_va_cache; i<NumberOf(rtems_e500_tlb_va_cache); i++, tlb++ ) {
-      /* disable TLBs for caching-enabled, non-guarded areas
-       * beyond physical memory
-       */
-      if (    tlb->att.v
-          &&  0xa != (tlb->att.wimge & 0xa)
-        &&  (tlb->va.va_epn<<12) >= BSP_mem_size ) {
-        rtems_e500_clrtlb( E500_SELTLB_1 | i );
-      }
-    }
-
-    /* clear all pending memory errors */
-    _ccsr_wr32(0x2e40, 0xffffffff);
-    /* enable checking for memory-select errors */
-    _ccsr_wr32(0x2e44, _ccsr_rd32(0x2e44) & ~1 );
-  }
-
-  BSP_vpdRetrieveFields( vpdData );
-
-  printk("Board Type: %s (S/N %s)\n",
-      BSP_productIdent[0] ? BSP_productIdent : "n/a",
-      BSP_serialNumber[0] ? BSP_serialNumber : "n/a");
-
-  printk("External (=PCI Bus) Clock Freq   ");
-  if ( 0xdeadbeef == BSP_pci_bus_frequency ) {
-    BSP_pci_bus_frequency  = 66666666;
-    printk(" NOT FOUND in VPD; using %10u Hz\n",
-        BSP_pci_bus_frequency);
-  } else {
-    printk(": %10u Hz\n",
-        BSP_pci_bus_frequency);
-  }
-
-  /* Calculate CPU and CCB bus freqs */
-  BSP_calc_freqs();
-
-  pci_initialize();
-
-  prether(BSP_enetAddr0, 0);
-  prether(BSP_enetAddr1, 1);
-  prether(BSP_enetAddr2, 2);
-
-  /* need to tweak the motload setup */
-  BSP_motload_pci_fixup();
-
-#ifdef SHOW_MORE_INIT_SETTINGS
-  printk("Number of PCI buses found is : %d\n", pci_bus_count());
-  {
-    BSP_pciConfigDump_early();
-  }
-#endif
-
-  if ( (chpt = strstr(BSP_commandline_string,"MEMSZ=")) ) {
-    char    *endp;
-    uint32_t   sz;
-    chpt+=6 /* strlen("MEMSZ=") */;
-    sz = strtoul(chpt, &endp, 0);
-    if ( endp != chpt )
-      BSP_mem_size = sz;
-  }
-
-  printk("Memory:                            %10u bytes\n", BSP_mem_size);
-
-  BSP_bus_frequency       = 333333333;
-  BSP_processor_frequency = 833333333;
-  BSP_time_base_divisor   = 8000; /* if external RTC clock unused (HID0) */
-
-  /* clear hostbridge errors but leave MCP disabled -
-   * PCI config space scanning code will trip otherwise :-(
-   */
-  _BSP_clear_hostbridge_errors(0 /* enableMCP */, 0/*quiet*/);
-
-  bsp_clicks_per_usec = BSP_bus_frequency/(BSP_time_base_divisor * 1000);
-  rtems_counter_initialize_converter(
-    BSP_bus_frequency / (BSP_time_base_divisor / 1000)
-  );
-
-  /*
-   * Initalize RTEMS IRQ system
-   */
-  BSP_rtems_irq_mng_init(0);
-
-  if (1) {
-    int i;
-    unsigned msr,tcr;
-    asm volatile("mfmsr %0":"=r"(msr));
-    asm volatile("mftcr %0":"=r"(tcr));
-    printk("MSR is 0x%08x, TCR 0x%08x\n",msr,tcr);
-    asm volatile("mttcr %0"::"r"(0));
-    if (0) {
-      asm volatile("mtmsr %0"::"r"(msr|0x8000));
-      for (i=0; i<12; i++)
-        BSP_enable_irq_at_pic(i);
-      printk("IRQS enabled\n");
-    }
-  }
-
-  if (0) {
-    unsigned x;
-    asm volatile("mfivpr %0":"=r"(x));
-    printk("IVPR: 0x%08x\n",x);
-    asm volatile("mfivor8 %0":"=r"(x));
-    printk("IVOR8: 0x%08x\n",x);
-    printk("0x%08x\n",*(unsigned *)0xc00);
-    printk("0x%08x\n",*(unsigned *)0xc04);
-    printk("0x%08x\n",*(unsigned *)0xc08);
-    printk("0x%08x\n\n\n",*(unsigned *)0xc0c);
-    if (0) {
-      *(unsigned *)0xc08 = 0x4c000064;
-      asm volatile("dcbf 0, %0; icbi 0, %0; sync; isync"::"r"(0xc00));
-    }
-
-    printk("0x%08x\n", ppc_exc_lock_std);
-    printk("0x%08x\n", ppc_exc_gpr3_std);
-
-    asm volatile("sc");
-
-    printk("0x%08x\n", ppc_exc_lock_std);
-    printk("0x%08x\n", ppc_exc_gpr3_std);
-  }
-
-  printk("-----------------------------------------\n");
-
-#ifdef SHOW_MORE_INIT_SETTINGS
-  printk("Exit from bspstart\n");
-#endif
-}
-
-static void mvme3100_i2c_initialize(void)
-{
-  BSP_i2c_initialize();
-}
-
-RTEMS_SYSINIT_ITEM(
-  mvme3100_i2c_initialize,
-  RTEMS_SYSINIT_BSP_PRE_DRIVERS,
-  RTEMS_SYSINIT_ORDER_MIDDLE
-);
-
-RTEMS_SYSINIT_ITEM(
-  BSP_vme_config,
-  RTEMS_SYSINIT_BSP_PRE_DRIVERS,
-  RTEMS_SYSINIT_ORDER_MIDDLE
-);
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/startup/linkcmds b/c/src/lib/libbsp/powerpc/mvme3100/startup/linkcmds
deleted file mode 100644
index b30fb91277..0000000000
--- a/c/src/lib/libbsp/powerpc/mvme3100/startup/linkcmds
+++ /dev/null
@@ -1,5 +0,0 @@
-STARTUP(motld_start.o)
-ENTRY(__rtems_entry_point)
-EXTERN(__vectors)
-
-INCLUDE linkcmds.share
diff --git a/c/src/lib/libbsp/powerpc/mvme3100/startup/misc.c b/c/src/lib/libbsp/powerpc/mvme3100/startup/misc.c
deleted file mode 100644
index 3a15397480..0000000000
--- a/c/src/lib/libbsp/powerpc/mvme3100/startup/misc.c
+++ /dev/null
@@ -1,131 +0,0 @@
-/* Miscellaneous small BSP routines; reboot, board CSR, ... */
-
-/*
- * Authorship
- * ----------
- * This software ('mvme3100' RTEMS BSP) was created by
- *
- *     Till Straumann <strauman@slac.stanford.edu>, 2005-2007,
- * 	   Stanford Linear Accelerator Center, Stanford University.
- *
- * Acknowledgement of sponsorship
- * ------------------------------
- * The 'mvme3100' BSP was produced by
- *     the Stanford Linear Accelerator Center, Stanford University,
- * 	   under Contract DE-AC03-76SFO0515 with the Department of Energy.
- *
- * Government disclaimer of liability
- * ----------------------------------
- * Neither the United States nor the United States Department of Energy,
- * nor any of their employees, makes any warranty, express or implied, or
- * assumes any legal liability or responsibility for the accuracy,
- * completeness, or usefulness of any data, apparatus, product, or process
- * disclosed, or represents that its use would not infringe privately owned
- * rights.
- *
- * Stanford disclaimer of liability
- * --------------------------------
- * Stanford University makes no representations or warranties, express or
- * implied, nor assumes any liability for the use of this software.
- *
- * Stanford disclaimer of copyright
- * --------------------------------
- * Stanford University, owner of the copyright, hereby disclaims its
- * copyright and all other rights in this software.  Hence, anyone may
- * freely use it for any purpose without restriction.
- *
- * Maintenance of notices
- * ----------------------
- * In the interest of clarity regarding the origin and status of this
- * SLAC software, this and all the preceding Stanford University notices
- * are to remain affixed to any copy or derivative of this software made
- * or distributed by the recipient and are to be affixed to any copy of
- * software made or distributed by the recipient that contains a copy or
- * derivative of this software.
- *
- * ------------------ SLAC Software Notices, Set 4 OTT.002a, 2004 FEB 03
- */
-
-#include <bsp.h>
-#include <bsp/bootcard.h>
-
-void
-bsp_reset(void)
-{
-uint8_t v;
-	/*
-	 * AFAIK, the hardest reset available; cleared
-	 * some errors a VME-bus reset wouldn't (hung
-	 * i2c bus)...
-	 */
-	v  = in_8( BSP_MVME3100_SYS_CR );
-	v &= ~BSP_MVME3100_SYS_CR_RESET_MSK;
-	v |=  BSP_MVME3100_SYS_CR_RESET;
-	out_8( BSP_MVME3100_SYS_CR, v );
-}
-
-uint8_t
-BSP_setSysReg(volatile uint8_t *r, uint8_t mask)
-{
-uint8_t               v;
-rtems_interrupt_level l;
-
-	if ( !mask )
-		return in_8( r );
-
-	rtems_interrupt_disable(l);
-		v = in_8( r );
-		if ( mask ) {
-			out_8( r,  v | mask );
-		}
-	rtems_interrupt_enable(l);
-	return v;
-}
-
-uint8_t
-BSP_clrSysReg(volatile uint8_t *r, uint8_t mask)
-{
-uint8_t               v;
-rtems_interrupt_level l;
-
-	if ( !mask )
-		return in_8( r );
-
-	rtems_interrupt_disable(l);
-		v = in_8( r );
-		if ( mask ) {
-			out_8( r,  v & ~mask );
-		}
-	rtems_interrupt_enable(l);
-	return v;
-}
-
-uint8_t
-BSP_setLEDs(uint8_t mask)
-{
-	return BSP_setSysReg( BSP_MVME3100_SYS_IND_REG, mask );
-}
-
-uint8_t
-BSP_clrLEDs(uint8_t mask)
-{
-	return BSP_clrSysReg( BSP_MVME3100_SYS_IND_REG, mask );
-}
-
-uint8_t
-BSP_eeprom_write_protect(void)
-{
-uint8_t           m = BSP_MVME3100_SYS_CR_EEPROM_WP;
-volatile uint8_t *r = BSP_MVME3100_SYS_CR;
-
-	return m & BSP_setSysReg( r, m );
-}
-
-uint8_t
-BSP_eeprom_write_enable(void)
-{
-uint8_t           m = BSP_MVME3100_SYS_CR_EEPROM_WP;
-volatile uint8_t *r = BSP_MVME3100_SYS_CR;
-
-	return m & BSP_clrSysReg( r, m );
-}