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authorJeff Johnston <jjohnstn@redhat.com>2011-12-15 22:58:40 +0000
committerJeff Johnston <jjohnstn@redhat.com>2011-12-15 22:58:40 +0000
commit8e0346d1372ed32d2c5f559e083f3bd60b281c3a (patch)
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parente74758408e50f8980de0d73f5b3721efbd698df9 (diff)
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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
Diffstat (limited to 'libgloss/sparc_leon/amba_driver.c')
-rw-r--r--libgloss/sparc_leon/amba_driver.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/libgloss/sparc_leon/amba_driver.c b/libgloss/sparc_leon/amba_driver.c
new file mode 100644
index 000000000..0340e94a3
--- /dev/null
+++ b/libgloss/sparc_leon/amba_driver.c
@@ -0,0 +1,119 @@
+/*
+ * 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 */
+extern amba_confarea_type amba_conf;
+
+/*collect apb slaves*/
+int
+amba_get_free_apbslv_devices (int vendor, int device, amba_apb_device * dev,
+ int nr)
+{
+ unsigned int i, conf, iobar, j = 0;
+#ifdef DEBUG_CONFIG
+ printf ("Apbslv: search for apdslv devices\n");
+#endif
+ for (i = 0; i < amba_conf.apbslv.devnr && j < nr; i++)
+ {
+ conf = amba_get_confword (amba_conf.apbslv, i, 0);
+#ifdef DEBUG_CONFIG
+ printf ("Apbslv: check(%x:%x)==(%x:%x)\n", vendor, device,
+ amba_vendor (conf), amba_device (conf));
+#endif
+ if ((amba_vendor (conf) == vendor) && (amba_device (conf) == device))
+ {
+ if (!(amba_conf.apbslv.allocbits[i / 32] & (1 << (i & (32 - 1)))))
+ {
+#ifdef DEBUG_CONFIG
+ printf ("Apbslv: alloc device idx %i (%x:%x)\n",
+ j, vendor, device);
+#endif
+ amba_conf.apbslv.allocbits[i / 32] |= (1 << (i & (32 - 1)));
+ dev[j].irq = amba_irq (conf);
+ iobar = amba_apb_get_membar (amba_conf.apbslv, i);
+ dev[j].start =
+ amba_iobar_start (amba_conf.apbslv.apbmst[i], iobar);
+#ifdef DEBUG_CONFIG
+ printf (" +bar: 0x%x \n", k, dev[j].start);
+#endif
+ j++;
+ }
+ }
+ }
+ return j;
+}
+
+/*collect ahb slaves*/
+int
+amba_get_free_ahbslv_devices (int vendor, int device, amba_ahb_device * dev,
+ int nr)
+{
+ unsigned int addr, i, conf, iobar, j = 0, k;
+#ifdef DEBUG_CONFIG
+ printf ("Ahbslv: search for ahdslv devices\n");
+#endif
+ for (i = 0; i < amba_conf.ahbslv.devnr && j < nr; i++)
+ {
+ conf = amba_get_confword (amba_conf.ahbslv, i, 0);
+#ifdef DEBUG_CONFIG
+ printf ("Ahbslv: check(%x:%x)==(%x:%x)\n", vendor, device,
+ amba_vendor (conf), amba_device (conf));
+#endif
+ if ((amba_vendor (conf) == vendor) && (amba_device (conf) == device))
+ {
+ if (!(amba_conf.ahbslv.allocbits[i / 32] & (1 << (i & (32 - 1)))))
+ {
+#ifdef DEBUG_CONFIG
+ printf ("Ahbslv: alloc device idx %i (%x:%x)\n",
+ j, vendor, device);
+#endif
+ amba_conf.ahbslv.allocbits[i / 32] |= (1 << (i & (32 - 1)));
+ dev[j].irq = amba_irq (conf);
+ for (k = 0; k < 4; k++)
+ {
+ iobar = amba_ahb_get_membar (amba_conf.ahbslv, i, k);
+ addr = amba_membar_start (iobar);
+ if (amba_membar_type (iobar) == AMBA_TYPE_AHBIO)
+ {
+ addr = AMBA_TYPE_AHBIO_ADDR (addr);
+ }
+ dev[j].start[k] = addr;
+#ifdef DEBUG_CONFIG
+ printf (" +%i: 0x%x \n", k, dev[j].start[k]);
+#endif
+ }
+ j++;
+ }
+ }
+ }
+ return j;
+}