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authorRalph Hempel <ralph.hempel@lantiq.com>2010-03-30 13:56:30 +0000
committerRalph Hempel <ralph.hempel@lantiq.com>2010-03-30 13:56:30 +0000
commit046d73d3c2bc3a515024c2cc8339d1177e749b77 (patch)
treee6c0308590b8a125833f31549758973328c4f577 /package/uboot-lantiq/files/cpu/mips/ar9
parentaa323e0134c4dd374869446738b701f82d014c89 (diff)
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add preliminary AR9 support attention: if caches enabled the network is broken attention: the network of the flash image doesn't work because of enabled caches
SVN-Revision: 20606
Diffstat (limited to 'package/uboot-lantiq/files/cpu/mips/ar9')
-rw-r--r--package/uboot-lantiq/files/cpu/mips/ar9/Makefile46
-rw-r--r--package/uboot-lantiq/files/cpu/mips/ar9/clock.c67
-rw-r--r--package/uboot-lantiq/files/cpu/mips/ar9/ifx_cache.S60
3 files changed, 173 insertions, 0 deletions
diff --git a/package/uboot-lantiq/files/cpu/mips/ar9/Makefile b/package/uboot-lantiq/files/cpu/mips/ar9/Makefile
new file mode 100644
index 0000000..c48d02e
--- /dev/null
+++ b/package/uboot-lantiq/files/cpu/mips/ar9/Makefile
@@ -0,0 +1,46 @@
+#########################################################################
+#
+# (C) Copyright 2000-2006
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of
+# the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+# MA 02111-1307 USA
+#
+
+include $(TOPDIR)/config.mk
+
+LIB = $(obj)lib$(SOC).a
+
+COBJS = clock.o
+
+SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
+
+all: $(obj).depend $(LIB)
+
+$(LIB): $(OBJS)
+ $(AR) $(ARFLAGS) $@ $(OBJS)
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/package/uboot-lantiq/files/cpu/mips/ar9/clock.c b/package/uboot-lantiq/files/cpu/mips/ar9/clock.c
new file mode 100644
index 0000000..a8aecb4
--- /dev/null
+++ b/package/uboot-lantiq/files/cpu/mips/ar9/clock.c
@@ -0,0 +1,67 @@
+/*
+ * (C) Copyright 2003
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/ar9.h>
+
+ulong ifx_get_ddr_hz(void)
+{
+ switch((*AR9_CGU_SYS) & 0x05) {
+ case 0x01:
+ case 0x05:
+ return CLOCK_111M;
+
+ case 0x00:
+ case 0x04:
+ return CLOCK_166M;
+ }
+
+ return 0;
+}
+
+ulong ifx_get_cpuclk(void)
+{
+ switch((*AR9_CGU_SYS) & 0x05) {
+ case 0x00:
+ case 0x01:
+ return CLOCK_333M;
+
+ case 0x04:
+ return CLOCK_166M;
+
+ case 0x05:
+ return CLOCK_111M;
+ }
+
+ return 0;
+}
+
+ulong get_bus_freq(ulong dummy)
+{
+ unsigned int ddr_clock=ifx_get_ddr_hz();
+ if((*AR9_CGU_SYS) & 0x40){
+ return ddr_clock/2;
+ } else {
+ return ddr_clock;
+ }
+}
diff --git a/package/uboot-lantiq/files/cpu/mips/ar9/ifx_cache.S b/package/uboot-lantiq/files/cpu/mips/ar9/ifx_cache.S
new file mode 100644
index 0000000..fc482dc
--- /dev/null
+++ b/package/uboot-lantiq/files/cpu/mips/ar9/ifx_cache.S
@@ -0,0 +1,60 @@
+
+#define IFX_CACHE_EXTRA_INVALID_TAG \
+ mtc0 zero, CP0_TAGLO, 1; \
+ mtc0 zero, CP0_TAGLO, 2; \
+ mtc0 zero, CP0_TAGLO, 3; \
+ mtc0 zero, CP0_TAGLO, 4;
+
+#define IFX_CACHE_EXTRA_OPERATION \
+ /* set WST bit */ \
+ mfc0 a0, CP0_ECC; \
+ li a1, ECCF_WST; \
+ or a0, a1; \
+ mtc0 a0, CP0_ECC; \
+ \
+ li a0, K0BASE; \
+ move a2, t2; /* icacheSize */ \
+ move a3, t4; /* icacheLineSize */ \
+ move a1, a2; \
+ icacheop(a0,a1,a2,a3,(Index_Store_Tag_I)); \
+ \
+ /* clear WST bit */ \
+ mfc0 a0, CP0_ECC; \
+ li a1, ~ECCF_WST; \
+ and a0, a1; \
+ mtc0 a0, CP0_ECC; \
+ \
+ /* 1: initialise dcache tags. */ \
+ \
+ /* cache line size */ \
+ li a2, CFG_CACHELINE_SIZE; \
+ /* kseg0 mem address */ \
+ li a1, 0; \
+ li a3, CFG_CACHE_SETS * CFG_CACHE_WAYS; \
+1: \
+ /* store tag (invalid, not locked) */ \
+ cache 0x8, 0(a1); \
+ cache 0x9, 0(a1); \
+ \
+ add a3, -1; \
+ bne a3, zero, 1b; \
+ add a1, a2; \
+ \
+ /* set WST bit */ \
+ mfc0 a0, CP0_ECC; \
+ li a1, ECCF_WST; \
+ or a0, a1; \
+ mtc0 a0, CP0_ECC; \
+ \
+ li a0, K0BASE; \
+ move a2, t3; /* dcacheSize */ \
+ move a3, t5; /* dcacheLineSize */ \
+ move a1, a2; \
+ icacheop(a0,a1,a2,a3,(Index_Store_Tag_D)); \
+ \
+ /* clear WST bit */ \
+ mfc0 a0, CP0_ECC; \
+ li a1, ~ECCF_WST; \
+ and a0, a1; \
+ mtc0 a0, CP0_ECC;
+