From 99648958668d3a33ee57974479b36201fe303f34 Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Fri, 20 Apr 2018 10:35:35 +0200
Subject: 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/sparc/leon2/start/bspstart.c | 127 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 127 insertions(+)
 create mode 100644 bsps/sparc/leon2/start/bspstart.c

(limited to 'bsps/sparc/leon2/start/bspstart.c')

diff --git a/bsps/sparc/leon2/start/bspstart.c b/bsps/sparc/leon2/start/bspstart.c
new file mode 100644
index 0000000000..f2ed8ae16c
--- /dev/null
+++ b/bsps/sparc/leon2/start/bspstart.c
@@ -0,0 +1,127 @@
+/**
+ * @file
+ * @ingroup sparc_leon2
+ * @brief LEON2 Cache Snooping Support
+ */
+
+/*
+ *  LEON2 Cache Snooping Support
+ *
+ *  COPYRIGHT (c) 2011
+ *  Aeroflex Gaisler
+ *
+ *  COPYRIGHT (c) 1989-2009.
+ *  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.
+ *
+ *  Ported to ERC32 implementation of the SPARC by On-Line Applications
+ *  Research Corporation (OAR) under contract to the European Space
+ *  Agency (ESA).
+ *
+ *  ERC32 modifications of respective RTEMS file: COPYRIGHT (c) 1995.
+ *  European Space Agency.
+ */
+
+#include <bsp.h>
+#include <bsp/bootcard.h>
+#include <rtems/sysinit.h>
+
+/*
+ * Tells us if data cache snooping is available
+ */
+int CPU_SPARC_HAS_SNOOPING;
+
+/*
+ * set_snooping
+ *
+ * Read the data cache configuration register to determine if
+ * bus snooping is available. This is needed for some drivers so
+ * that they can select the most efficient copy routines.
+ */
+static inline int set_snooping(void)
+{
+  unsigned int tmp = *(unsigned int *)0x80000014; /* Cache control register */
+  return ((tmp>>23) & 1); /* Data cache snooping enabled */
+}
+
+void bsp_start( void )
+{
+  CPU_SPARC_HAS_SNOOPING = set_snooping();
+}
+
+/* If RTEMS_DRVMGR_STARTUP is defined extra code is added that
+ * registers the LEON2 AMBA bus driver as root driver into the
+ * driver manager.
+ *
+ * The structues here are declared weak so that the user can override
+ * the configuration and add custom cores in the RTEMS project.
+ */
+#ifdef RTEMS_DRVMGR_STARTUP
+#include <drvmgr/drvmgr.h>
+#include <drvmgr/leon2_amba_bus.h>
+
+/* All drivers included by BSP, this is overridden by the user by including
+ * the devmgr_confdefs.h. No specifc drivers needed by BSP since IRQ/TIMER/UART
+ * is not drvmgr drivers.
+ */
+drvmgr_drv_reg_func drvmgr_drivers[] __attribute__((weak)) =
+{
+  NULL /* End array with NULL */
+};
+
+/* Defines what cores are avilable on the bus in addition to the standard
+ * LEON2 peripherals.
+ */
+struct leon2_core leon2_amba_custom_cores[] __attribute__((weak)) =
+{
+  EMPTY_LEON2_CORE
+};
+
+/* Configure LEON2 Root bus driver */
+struct leon2_bus leon2_bus_config __attribute__((weak)) =
+{
+  &leon2_std_cores[0], /* The standard cores, defined by driver */
+  &leon2_amba_custom_cores[0],   /* custom cores, defined by us */
+  DRVMGR_TRANSLATE_ONE2ONE,
+  DRVMGR_TRANSLATE_ONE2ONE,
+};
+
+/* Driver resources on LEON2 AMBA bus. Used to set options for particular
+ * LEON2 cores, it is up to the driver to look at the configuration paramters
+ * once started.
+ */
+struct drvmgr_bus_res leon2_amba_res __attribute__((weak)) =
+{
+  .next = NULL,
+  .resource = {
+    DRVMGR_RES_EMPTY
+  },
+};
+#endif /* RTEMS_DRVMGR_STARTUP */
+
+/*
+ * Called just before drivers are initialized.  Is used to initialize shared
+ * interrupt handling.
+ */
+static void leon2_pre_driver_hook( void )
+{
+  bsp_spurious_initialize();
+
+  /* Initialize shared interrupt handling, must be done after IRQ
+   * controller has been found and initialized.
+   */
+  BSP_shared_interrupt_init();
+
+#ifdef RTEMS_DRVMGR_STARTUP
+  leon2_root_register(&leon2_bus_config, &leon2_amba_res);
+#endif
+}
+
+RTEMS_SYSINIT_ITEM(
+  leon2_pre_driver_hook,
+  RTEMS_SYSINIT_BSP_PRE_DRIVERS,
+  RTEMS_SYSINIT_ORDER_MIDDLE
+);
-- 
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