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.

bsps/powerpc/qemuppc/start/bsp_specs

@@ -0,0 +1,9 @@
+%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}

bsps/powerpc/qemuppc/start/bspstart.c

@@ -0,0 +1,121 @@
+/*
+ *  This set of routines starts the application.  It includes application,
+ *  board, and monitor specific initialization and configuration.
+ *  The generic CPU dependent initialization has been performed
+ *  before any of these are invoked.
+ *
+ *  COPYRIGHT (c) 1989-2008.
+ *  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.
+ */
+
+#include <string.h>
+#include <fcntl.h>
+
+#include <rtems/counter.h>
+
+#include <libcpu/bat.h>
+#include <libcpu/spr.h>
+#include <libcpu/powerpc-utility.h>
+
+#include <bsp.h>
+#include <bsp/irq.h>
+#include <bsp/vectors.h>
+#include <bsp/bootcard.h>
+#include <bsp/irq-generic.h>
+
+/*
+ * CPU Bus Frequency
+ */
+unsigned int BSP_bus_frequency;
+
+/* Configuration parameter for clock driver */
+uint32_t bsp_time_base_frequency;
+
+/* Legacy */
+uint32_t bsp_clicks_per_usec;
+
+/*
+ * Memory on this board.
+ */
+extern char RamSize[];
+extern char bsp_interrupt_stack_start[];
+extern char bsp_interrupt_stack_end[];
+uint32_t BSP_mem_size = (uint32_t)RamSize;
+
+/* Default decrementer exception handler */
+static int default_decrementer_exception_handler( BSP_Exception_frame *frame, unsigned number)
+{
+  ppc_set_decrementer_register(UINT32_MAX);
+
+  return 0;
+}
+
+/*
+ *  bsp_start
+ *
+ *  This routine does the bulk of the system initialization.
+ */
+
+void bsp_start( void )
+{
+  rtems_status_code sc = RTEMS_SUCCESSFUL;
+  uintptr_t intrStackStart;
+  uintptr_t intrStackSize;
+
+  /*
+   * Note we can not get CPU identification dynamically, so
+   * force current_ppc_cpu.
+   */
+  current_ppc_cpu = PPC_PSIM;
+
+  /*
+   *  initialize the device driver parameters
+   * assume we are running with 20MHz bus
+   * this should speed up some tests :-)
+   */
+  BSP_bus_frequency        = 20;
+  bsp_time_base_frequency  = 20000000;
+  bsp_clicks_per_usec      = BSP_bus_frequency;
+  rtems_counter_initialize_converter(bsp_time_base_frequency);
+
+  /*
+   * Initialize the interrupt related settings.
+   */
+  intrStackStart = (uintptr_t) bsp_interrupt_stack_start;
+  intrStackSize =  (uintptr_t) bsp_interrupt_stack_end - intrStackStart;
+
+  BSP_mem_size = (uint32_t )RamSize;
+
+  /*
+   * Initialize default raw exception handlers.
+   */
+  ppc_exc_initialize(intrStackStart, intrStackSize);
+
+  /* Install default handler for the decrementer exception */
+  sc = ppc_exc_set_handler( ASM_DEC_VECTOR, default_decrementer_exception_handler);
+  if (sc != RTEMS_SUCCESSFUL) {
+    rtems_panic("cannot install decrementer exception handler");
+  }
+
+  /* Initalize interrupt support */
+  bsp_interrupt_initialize();
+
+#if 0
+  /*
+   * Setup BATs and enable MMU
+   */
+  /* Memory */
+  setdbat(0, 0x0<<24, 0x0<<24, 2<<24, _PAGE_RW);
+  setibat(0, 0x0<<24, 0x0<<24, 2<<24,        0);
+  /* PCI    */
+  setdbat(1, 0x8<<24, 0x8<<24, 1<<24,  IO_PAGE);
+  setdbat(2, 0xc<<24, 0xc<<24, 1<<24,  IO_PAGE);
+
+  _write_MSR(_read_MSR() | MSR_DR | MSR_IR);
+  __asm__ volatile("sync; isync");
+#endif
+}

bsps/powerpc/qemuppc/start/cmain.c

@@ -0,0 +1,55 @@
+#include <bsp/bootcard.h>
+#include <bsp/linker-symbols.h>
+
+static void
+__outb(int port, unsigned char v)
+{
+  *((volatile unsigned char *)(0x80000000 + port)) = v;
+}
+
+#if 0
+/* currently unused but keep just in case */
+
+static unsigned char
+__inb(int port)
+{
+  return *((volatile unsigned char *)(0x80000000 + port));
+}
+#endif
+
+static void
+__memcpy (unsigned char *d, unsigned char *s, int len)
+{
+  while (len--)
+    *d++ = *s++;
+}
+
+static void
+__bzero (unsigned char *d, int len)
+{
+  while (len--)
+    *d++ = 0;
+}
+
+
+/*
+ * Prototype this here because it is just the entry symbol and
+ * not referenced from any compileable code.
+ */
+void cmain (void);
+
+void cmain (void)
+{
+  /*
+   * init variable sections
+   */
+  __memcpy (bsp_section_data_begin, bsp_section_data_load_begin, (int)bsp_section_data_size);
+  __bzero (bsp_section_bss_begin, (int)bsp_section_bss_size);
+  __bzero (bsp_section_sbss_begin, (int)bsp_section_sbss_size);
+  /* printk( "start of BSP\n"); */
+  boot_card(0);
+  /* printk( "end of BSP\n"); */
+  __outb (0x92, 0x01);
+  while (1)
+    ;
+}

bsps/powerpc/qemuppc/start/linkcmds

@@ -0,0 +1,38 @@
+EXTERN(__vectors)
+
+MEMORY
+  {
+        EMPTY     : ORIGIN = 0, LENGTH = 0
+        RAM       : ORIGIN = 0x2000, LENGTH = 4M - 0x2000
+        ROM       : ORIGIN = 0xFFC00000, LENGTH = 4M
+        VECTORS   : ORIGIN = 0xFFF00000, LENGTH = 0x20000
+        RESET     : ORIGIN = 0xFFFFFFFC, LENGTH = 0x4
+  }
+
+REGION_ALIAS ("REGION_START", ROM);
+REGION_ALIAS ("REGION_FAST_TEXT", ROM);
+REGION_ALIAS ("REGION_FAST_TEXT_LOAD", ROM);
+REGION_ALIAS ("REGION_TEXT", ROM);
+REGION_ALIAS ("REGION_TEXT_LOAD", ROM);
+REGION_ALIAS ("REGION_RODATA", ROM);
+REGION_ALIAS ("REGION_RODATA_LOAD", ROM);
+REGION_ALIAS ("REGION_FAST_DATA", RAM);
+REGION_ALIAS ("REGION_FAST_DATA_LOAD", ROM);
+REGION_ALIAS ("REGION_DATA", RAM);
+REGION_ALIAS ("REGION_DATA_LOAD", ROM);
+REGION_ALIAS ("REGION_BSS", RAM);
+REGION_ALIAS ("REGION_RWEXTRA", RAM);
+REGION_ALIAS ("REGION_WORK", RAM);
+REGION_ALIAS ("REGION_STACK", RAM);
+REGION_ALIAS ("REGION_NOCACHE", EMPTY);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", EMPTY);
+REGION_ALIAS ("REGION_NVRAM", EMPTY);
+
+SECTIONS {
+  .reset :
+  {
+   KEEP(*(.reset))
+  } >RESET
+}
+
+INCLUDE linkcmds.base