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authorJeff Johnston <jjohnstn@redhat.com>2011-12-16 02:58:40 +0400
committerJeff Johnston <jjohnstn@redhat.com>2011-12-16 02:58:40 +0400
commit8e0346d1372ed32d2c5f559e083f3bd60b281c3a (patch)
treeb72116c382df57f2e7396b58d32370b731535712 /libgloss/sparc_leon/lcpuinit.S
parente74758408e50f8980de0d73f5b3721efbd698df9 (diff)
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/lcpuinit.S')
-rw-r--r--libgloss/sparc_leon/lcpuinit.S143
1 files changed, 143 insertions, 0 deletions
diff --git a/libgloss/sparc_leon/lcpuinit.S b/libgloss/sparc_leon/lcpuinit.S
new file mode 100644
index 000000000..d6a9ec842
--- /dev/null
+++ b/libgloss/sparc_leon/lcpuinit.S
@@ -0,0 +1,143 @@
+/*
+ * 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.
+ */
+
+
+#define LEON3_IO_AREA 0xfff00000
+#define LEON3_CONF_AREA 0xff000
+#define VENDOR_GAISLER 0x01
+#define GAISLER_APBMST 0x006
+#define GAISLER_APBUART 0x00C
+#define GAISLER_GPTIMER 0x011
+
+ .text
+ /* ------- */
+ .weak cpuinit
+ .set cpuinit,_cpuinit
+ /* ------- */
+ !.global cpuinit
+_cpuinit:
+
+ mov %o7,%g6
+
+ mov %psr, %l3
+ srl %l3, 24, %g5
+ and %g5, 0xf, %g5
+ subcc %g5, 3, %0
+ be 1f
+
+ /* other versions */
+
+ ba 2f
+
+ ! ####### leon3 #########
+
+1: set 0x01, %o0 !VENDOR_GAISLER
+ set 0x006, %o1 !GAISLER_APBMST
+ call ahbslv_scan
+ nop
+
+ cmp %g0,%o0
+ be 2f
+ nop
+
+ ld [%o0+16],%g1
+ set 0xfff00000,%o0 !LEON3_IO_AREA
+ and %g1,%o0,%g1 !g1: apb base
+
+ set 0xff000,%o0 !LEON3_CONF_AREA
+ or %g1,%o0,%g2 !g2: apb conf base
+
+ ! ####### uart #########
+ mov %g2,%o0
+ set 0x01 , %o1 ! VENDOR_GAISLER
+ set 0x00C,%o2 ! GAISLER_APBUART
+ call apbslv_scan
+ nop
+ cmp %g0,%o0
+ be 2f
+ nop
+
+ call iobar_getbase
+ mov %g1,%o1
+
+ set console, %g5
+ st %o1,[%g5] !uart base address
+
+ ! ####### timer #########
+
+ mov %g2,%o0
+ set 0x01 , %o1 !VENDOR_GAISLER
+ set 0x011,%o2 !GAISLER_GPTIMER
+ call apbslv_scan
+ nop
+ cmp %g0,%o0
+ be 2f
+ nop
+
+ call iobar_getbase
+ mov %g1,%o1
+
+ add %o1,0x10,%o1
+ set rtc, %g5
+ st %o1,[%g5]
+
+ ! ################
+
+ mov %g2,%o0
+ set 0x01 , %o1 !VENDOR_GAISLER
+ set 0x00D,%o2 !GAISLER_IRQMP
+ call apbslv_scan
+ nop
+ cmp %g0,%o0
+ be 2f
+ nop
+
+ call iobar_getbase
+ mov %g1,%o1
+
+ set irqmp, %g5
+ st %o1,[%g5]
+ ld [%o1+0x10], %o2
+ srl %o2, 16, %o2
+ and %o2, 15, %o2
+ st %o2,[%g5+4]
+
+ ! ################
+
+2: mov %g6,%o7
+ retl
+ nop
+
+ ! force link of jiffies_64
+ .global jiffies_64
+3: set jiffies_64,%g1
+
+
+ .data
+ .global irqmp
+
+irqmp: .word 0 ! IRQMP base address
+ .word 0 ! extended irq number
+
+ .text