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authorWolfgang Denk <wd@denx.de>2008-09-01 00:03:40 +0200
committerWolfgang Denk <wd@denx.de>2008-09-01 00:03:40 +0200
commitde5b094def5d80c4355c0326cfb54b9289f7d609 (patch)
treee1145f02977d099f9dc51174a1c0cd7c58b8d55d /cpu/sh2/cpu.c
parent845842c1e4c465c895cdfcd013e162320d127048 (diff)
parentc75e772a2f061a508bba28ded1b5bea91f0442b0 (diff)
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Merge branch 'master' of git://git.denx.de/u-boot-sh
Diffstat (limited to 'cpu/sh2/cpu.c')
-rw-r--r--cpu/sh2/cpu.c98
1 files changed, 98 insertions, 0 deletions
diff --git a/cpu/sh2/cpu.c b/cpu/sh2/cpu.c
new file mode 100644
index 0000000..e0cb047
--- /dev/null
+++ b/cpu/sh2/cpu.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ * Copyright (C) 2008 Renesas Solutions Corp.
+ *
+ * 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 <command.h>
+#include <asm/processor.h>
+#include <asm/io.h>
+
+#define STBCR4 0xFFFE040C
+#define cmt_clock_enable() do {\
+ writeb(readb(STBCR4) & ~0x04, STBCR4);\
+ } while (0)
+#define scif0_enable() do {\
+ writeb(readb(STBCR4) & ~0x80, STBCR4);\
+ } while (0)
+
+int checkcpu(void)
+{
+#if defined(CONFIG_SH2A)
+ puts("CPU: SH2A\n");
+#else
+ puts("CPU: SH2\n");
+#endif
+ return 0;
+}
+
+int cpu_init(void)
+{
+ /* SCIF enable */
+ scif0_enable();
+ /* CMT clock enable */
+ cmt_clock_enable() ;
+ return 0;
+}
+
+int cleanup_before_linux(void)
+{
+ disable_interrupts();
+ return 0;
+}
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+ disable_interrupts();
+ reset_cpu(0);
+ return 0;
+}
+
+void flush_cache(unsigned long addr, unsigned long size)
+{
+
+}
+
+void icache_enable(void)
+{
+}
+
+void icache_disable(void)
+{
+}
+
+int icache_status(void)
+{
+ return 0;
+}
+
+void dcache_enable(void)
+{
+}
+
+void dcache_disable(void)
+{
+}
+
+int dcache_status(void)
+{
+ return 0;
+}