2011-12-15 Konrad Eisele <konrad@gaisler.com>

        * configure.in: Add SPARC LEON support.
        * configure: Regenerated.
        * sparc_leon/asm-leon/amba.h, sparc_leon/asm-leon/asmmacro.h,
        sparc_leon/asm-leon/clock.h, sparc_leon/asm-leon/contextswitch.h,
        sparc_leon/asm-leon/elfmacro.h, sparc_leon/asm-leon/head.h,
        sparc_leon/asm-leon/irq.h, sparc_leon/asm-leon/jiffies.h,
        sparc_leon/asm-leon/lambapp.h, sparc_leon/asm-leon/lambapp_devs.h,
        sparc_leon/asm-leon/leon.h, sparc_leon/asm-leon/leon3.h,
        sparc_leon/asm-leon/leonbare_debug.h, sparc_leon/asm-leon/leonbare_kernel.h,
        sparc_leon/asm-leon/leonbare_kernel_queue.h, sparc_leon/asm-leon/leoncompat.h,
        sparc_leon/asm-leon/leondbg.h, sparc_leon/asm-leon/leonstack.h,
        sparc_leon/asm-leon/liblocks.h, sparc_leon/asm-leon/linkage.h,
        sparc_leon/asm-leon/param.h, sparc_leon/asm-leon/queue.h,
        sparc_leon/asm-leon/spinlock.h, sparc_leon/asm-leon/stack.h,
        sparc_leon/asm-leon/time.h, sparc_leon/asm-leon/timer.h,
        sparc_leon/asm-leon/types.h, sparc_leon/asm-leon/winmacros.h:
        New file.
        * sparc_leon/Makefile.in, sparc_leon/_exit.c,
        sparc_leon/amba.c, sparc_leon/amba_dbg.c,
        sparc_leon/amba_driver.c, sparc_leon/amba_scan.c,
        sparc_leon/asm-leon, sparc_leon/bdinit.S,
        sparc_leon/busscan.S, sparc_leon/cacheA.S,
        sparc_leon/catch_interrupt.c, sparc_leon/catch_interrupt_mvt.c,
        sparc_leon/catch_interrupt_pending.c, sparc_leon/catch_interrupt_svt.c,
        sparc_leon/configure.in,
        sparc_leon/console.c, sparc_leon/console_dbg.c,
        sparc_leon/console_init.c, sparc_leon/contextswitch.c,
        sparc_leon/contextswitch_asm.S, sparc_leon/crt0.S,
        sparc_leon/crti.S, sparc_leon/crtn.S,
        sparc_leon/etrap.S, sparc_leon/etrap_fast.S,
        sparc_leon/fpu.S, sparc_leon/gettimeofday.c,
        sparc_leon/initcalls.c, sparc_leon/io.c,
        sparc_leon/irqinstall.S, sparc_leon/irqtrap.S,
        sparc_leon/irqtrap_fast.S, sparc_leon/jiffies.c,
        sparc_leon/kernel.c, sparc_leon/kernel_context.S,
        sparc_leon/kernel_debug.c, sparc_leon/kernel_debug_var.c,
        sparc_leon/kernel_mm.c, sparc_leon/kernel_mutex.c,
        sparc_leon/kernel_queue.c, sparc_leon/kernel_sched.c,
        sparc_leon/kernel_thread.c, sparc_leon/lcpuinit.S,
        sparc_leon/locore.S, sparc_leon/locore_atexit.c,
        sparc_leon/locore_clean.S, sparc_leon/locore_mvt.S,
        sparc_leon/locore_mvt_reset.S, sparc_leon/locore_svt.S,
        sparc_leon/locore_svt_reset.S, sparc_leon/locore_svtdisp.S,
        sparc_leon/locore_var.S, sparc_leon/locore_var_svt.S,
        sparc_leon/mmu_asm.S, sparc_leon/mutex.c,
        sparc_leon/nocache.S, sparc_leon/pnpinit.c,
        sparc_leon/pnpinit_malloc.c, sparc_leon/pnpinit_simple.c,
        sparc_leon/regwin.S, sparc_leon/regwin_patch.c,
        sparc_leon/regwin_slow.S, sparc_leon/regwinflush.S,
        sparc_leon/rtc.c, sparc_leon/rtrap.S,
        sparc_leon/rtrap_fast.S, sparc_leon/stop.S,
        sparc_leon/timer.c, sparc_leon/times.c:
        New file
        * sparc_leon/configure: Regenerate

1 files changed, 152 insertions, 0 deletions

diff --git a/libgloss/sparc_leon/amba.c b/libgloss/sparc_leon/amba.c
new file mode 100644
index 000000000..0df6759da
--- /dev/null
+++ b/libgloss/sparc_leon/amba.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2011 Aeroflex Gaisler
+ *
+ * BSD license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#include <asm-leon/leon.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/*#define DEBUG_CONFIG*/
+
+/* Structure containing address to devices found on the Amba Plug&Play bus */
+amba_confarea_type amba_conf;
+
+/* Pointers to Interrupt Controller configuration registers */
+volatile LEON3_IrqCtrl_Regs_Map *LEON3_IrqCtrl_Regs = 0;
+volatile LEON3_GpTimer_Regs_Map *LEON3_GpTimer_Regs = 0;
+unsigned long LEON3_GpTimer_Irq = 0;
+
+unsigned long
+amba_find_apbslv_addr (unsigned long vendor, unsigned long device,
+		       unsigned long *irq)
+{
+  unsigned int i, conf, iobar;
+  for (i = 0; i < amba_conf.apbslv.devnr; i++)
+    {
+      conf = amba_get_confword (amba_conf.apbslv, i, 0);
+      if ((amba_vendor (conf) == vendor) && (amba_device (conf) == device))
+	{
+	  if (irq)
+	    {
+	      *irq = amba_irq (conf);
+	    }
+	  iobar = amba_apb_get_membar (amba_conf.apbslv, i);
+	  return amba_iobar_start (amba_conf.apbslv.apbmst[i], iobar);
+	}
+    }
+  return 0;
+}
+
+#define amba_insert_device(tab, address) do {				\
+    if (LEON3_BYPASS_LOAD_PA(address)) {				\
+      (tab)->addr[(tab)->devnr] = (address);				\
+      (tab)->devnr ++;							\
+    }									\
+  } while(0)
+
+#define amba_insert_apb_device(tab, address, apbmst, idx) do {		\
+    if (*(address)) {							\
+      (tab)->addr[(tab)->devnr] = (address);				\
+      (tab)->apbmst[(tab)->devnr] = (apbmst);				\
+      (tab)->apbmstidx[(tab)->devnr] = (idx);				\
+      (tab)->devnr ++;							\
+    }									\
+  } while(0)
+
+/*
+ *  Used to scan system bus. Probes for AHB masters, AHB slaves and 
+ *  APB slaves. Addresses to configuration areas of the AHB masters,
+ *  AHB slaves, APB slaves and APB master are storeds in 
+ *  amba_ahb_masters, amba_ahb_slaves and amba.
+ */
+
+int amba_init_done = 0;
+
+void
+amba_init (void)
+{
+  unsigned int *cfg_area;	/* address to configuration area */
+  unsigned int mbar, conf, apbmst;
+  int i, j, idx = 0;
+
+  if (amba_init_done)
+    {
+      return;
+    }
+  amba_init_done = 1;
+
+  memset (&amba_conf, 0, sizeof (amba_conf));
+  /*amba_conf.ahbmst.devnr = 0; amba_conf.ahbslv.devnr = 0; amba_conf.apbslv.devnr = 0; */
+
+  cfg_area = (unsigned int *) (LEON3_IO_AREA | LEON3_CONF_AREA);
+
+  for (i = 0; i < LEON3_AHB_MASTERS; i++)
+    {
+      amba_insert_device (&amba_conf.ahbmst, cfg_area);
+      cfg_area += LEON3_AHB_CONF_WORDS;
+    }
+
+  cfg_area =
+    (unsigned int *) (LEON3_IO_AREA | LEON3_CONF_AREA |
+		      LEON3_AHB_SLAVE_CONF_AREA);
+  for (i = 0; i < LEON3_AHB_SLAVES; i++)
+    {
+      amba_insert_device (&amba_conf.ahbslv, cfg_area);
+      cfg_area += LEON3_AHB_CONF_WORDS;
+    }
+
+  for (i = 0; i < amba_conf.ahbslv.devnr; i++)
+    {
+      conf = amba_get_confword (amba_conf.ahbslv, i, 0);
+      mbar = amba_ahb_get_membar (amba_conf.ahbslv, i, 0);
+      if ((amba_vendor (conf) == VENDOR_GAISLER)
+	  && (amba_device (conf) == GAISLER_APBMST))
+	{
+	  int k;
+	  /*amba_conf.apbmst = */ apbmst = amba_membar_start (mbar);
+	  cfg_area = (unsigned int *) (apbmst | LEON3_CONF_AREA);
+
+	  for (j = amba_conf.apbslv.devnr, k = 0;
+	       j < AMBA_MAXAPB_DEVS && k < AMBA_MAXAPB_DEVS_PERBUS; j++, k++)
+	    {
+	      amba_insert_apb_device (&amba_conf.apbslv, cfg_area, apbmst,
+				      idx);
+	      cfg_area += LEON3_APB_CONF_WORDS;
+	    }
+	  idx++;
+	}
+    }
+
+  /* Find LEON3 Interrupt controler */
+  LEON3_IrqCtrl_Regs = (volatile LEON3_IrqCtrl_Regs_Map *)
+    amba_find_apbslv_addr (VENDOR_GAISLER, GAISLER_IRQMP, 0);
+  LEON3_GpTimer_Regs = (volatile LEON3_GpTimer_Regs_Map *)
+    amba_find_apbslv_addr (VENDOR_GAISLER, GAISLER_GPTIMER,
+			   &LEON3_GpTimer_Irq);
+  if (LEON3_IrqCtrl_Regs)
+    {
+      LEON3_BYPASS_STORE_PA (&(LEON3_IrqCtrl_Regs->mask[0]), 0);
+    }
+}