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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)
treeb72116c382df57f2e7396b58d32370b731535712 /libgloss/sparc_leon/amba_scan.c
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_scan.c')
-rw-r--r--libgloss/sparc_leon/amba_scan.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/libgloss/sparc_leon/amba_scan.c b/libgloss/sparc_leon/amba_scan.c
new file mode 100644
index 000000000..6d12281cd
--- /dev/null
+++ b/libgloss/sparc_leon/amba_scan.c
@@ -0,0 +1,96 @@
+/*
+ * 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>
+
+unsigned int
+leon3_ahbslv_scan (register unsigned int vendor, register unsigned int driver)
+{
+ register unsigned int conf, i, *confp;
+ register unsigned int cfg_area =
+ (unsigned int) (LEON3_IO_AREA | LEON3_CONF_AREA |
+ LEON3_AHB_SLAVE_CONF_AREA);
+ for (i = 0; i < LEON3_AHB_SLAVES; i++)
+ {
+ confp = (unsigned int *) (cfg_area + (i * LEON3_AHB_CONF_WORDS * 4));
+ conf = *confp;
+ if ((amba_vendor (conf) == vendor) && (amba_device (conf) == driver))
+ {
+ return (unsigned int) confp;
+ }
+ }
+ return 0;
+}
+
+unsigned int
+leon3_getbase (register unsigned int *mbar, register unsigned int iobase,
+ int *irq)
+{
+ register unsigned int conf = mbar[1];
+ return (unsigned int) (((iobase & 0xfff00000) |
+ ((conf & 0xfff00000) >> 12)) & (((conf & 0x0000fff0)
+ << 4) |
+ 0xfff00000));
+}
+
+unsigned int
+leon3_apbslv_scan (register unsigned int base,
+ register unsigned int vendor,
+ register unsigned int driver,
+ amba_apb_device * apbdevs, int c)
+{
+ register unsigned int conf, i, *confp;
+ int j = 0;
+ for (i = 0; i < LEON3_APB_SLAVES; i++)
+ {
+ confp = (unsigned int *) (base + (i * LEON3_APB_CONF_WORDS * 4));
+ conf = *confp;
+ if ((amba_vendor (conf) == vendor) && (amba_device (conf) == driver))
+ {
+ if (j < c)
+ {
+ apbdevs[j].start = leon3_getbase (confp, base, 0);
+ apbdevs[j].irq = amba_irq (conf);
+ j++;
+ }
+ }
+ }
+ return j;
+}
+
+
+unsigned int
+leon3_getapbbase (register unsigned int vendor,
+ register unsigned int driver,
+ amba_apb_device * apbdevs, int c)
+{
+ unsigned int apb = leon3_ahbslv_scan (VENDOR_GAISLER, GAISLER_APBMST);
+ apb = (*(unsigned int *) (apb + 16)) & LEON3_IO_AREA;
+ apb |= LEON3_CONF_AREA;
+ return leon3_apbslv_scan (apb, vendor, driver, apbdevs, c);
+}