1 files changed, 76 insertions, 0 deletions

diff --git a/arch/mips/txx9/jmr3927/prom.c b/arch/mips/txx9/jmr3927/prom.c
new file mode 100644
index 00000000000..2cadb423fac
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/prom.c
@@ -0,0 +1,76 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ *    PROM library initialisation code, assuming a version of
+ *    pmon is the boot code.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ahennessy@mvista.com
+ *
+ * Based on arch/mips/au1000/common/prom.c
+ *
+ * This file was derived from Carsten Langgaard's
+ * arch/mips/mips-boards/xx files.
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
+ *
+ *  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  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  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.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/jmr3927.h>
+
+#define TIMEOUT       0xffffff
+
+void
+prom_putchar(char c)
+{
+        int i = 0;
+
+        do {
+            i++;
+            if (i>TIMEOUT)
+                break;
+        } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+        tx3927_sioptr(1)->tfifo = c;
+        return;
+}
+
+void
+puts(const char *cp)
+{
+    while (*cp)
+        prom_putchar(*cp++);
+    prom_putchar('\r');
+    prom_putchar('\n');
+}
+
+void __init jmr3927_prom_init(void)
+{
+        /* CCFG */
+        if ((tx3927_ccfgptr->ccfg & TX3927_CCFG_TLBOFF) == 0)
+                puts("Warning: TX3927 TLB off\n");
+
+        prom_init_cmdline();
+        add_memory_region(0, JMR3927_SDRAM_SIZE, BOOT_MEM_RAM);
+}