summaryrefslogtreecommitdiffstats
path: root/arch/nios2/cpu/cpu.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/nios2/cpu/cpu.c')
-rw-r--r--arch/nios2/cpu/cpu.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/arch/nios2/cpu/cpu.c b/arch/nios2/cpu/cpu.c
new file mode 100644
index 0000000..edf2560
--- /dev/null
+++ b/arch/nios2/cpu/cpu.c
@@ -0,0 +1,65 @@
+/*
+ * (C) Copyright 2004, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * 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 <nios2.h>
+#include <nios2-io.h>
+#include <asm/cache.h>
+
+#if defined (CONFIG_SYS_NIOS_SYSID_BASE)
+extern void display_sysid (void);
+#endif /* CONFIG_SYS_NIOS_SYSID_BASE */
+
+int checkcpu (void)
+{
+ printf ("CPU : Nios-II\n");
+#if !defined(CONFIG_SYS_NIOS_SYSID_BASE)
+ printf ("SYSID : <unknown>\n");
+#else
+ display_sysid ();
+#endif
+ return (0);
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ disable_interrupts();
+ /* indirect call to go beyond 256MB limitation of toolchain */
+ nios2_callr(CONFIG_SYS_RESET_ADDR);
+ return 0;
+}
+
+int dcache_status(void)
+{
+ return 1;
+}
+
+void dcache_enable(void)
+{
+ flush_dcache(CONFIG_SYS_DCACHE_SIZE, CONFIG_SYS_DCACHELINE_SIZE);
+}
+
+void dcache_disable(void)
+{
+ flush_dcache(CONFIG_SYS_DCACHE_SIZE, CONFIG_SYS_DCACHELINE_SIZE);
+}
OpenPOWER on IntegriCloud