1 files changed, 82 insertions, 0 deletions
diff --git a/arch/v850/kernel/rte_nb85e_cb.c b/arch/v850/kernel/rte_nb85e_cb.c
new file mode 100644
index 000000000000..990b20bffe47
--- /dev/null
+++ b/arch/v850/kernel/rte_nb85e_cb.c
@@ -0,0 +1,82 @@
+/*
+ * arch/v850/kernel/rte_nb85e_cb.c -- Midas labs RTE-V850E/NB85E-CB board
+ *
+ *  Copyright (C) 2001,02,03  NEC Electronics Corporation
+ *  Copyright (C) 2001,02,03  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/bootmem.h>
+#include <linux/irq.h>
+
+#include <asm/atomic.h>
+#include <asm/page.h>
+#include <asm/v850e.h>
+#include <asm/rte_nb85e_cb.h>
+
+#include "mach.h"
+
+void __init mach_early_init (void)
+{
+	/* Configure caching; some possible settings:
+
+	     BHC = 0x0000, DCC = 0x0000	 -- all caching disabled
+	     BHC = 0x0040, DCC = 0x0000	 -- SDRAM: icache only
+	     BHC = 0x0080, DCC = 0x0C00	 -- SDRAM: write-back dcache only
+	     BHC = 0x00C0, DCC = 0x0C00	 -- SDRAM: icache + write-back dcache
+	     BHC = 0x00C0, DCC = 0x0800	 -- SDRAM: icache + write-thru dcache
+
+	   We can only cache SDRAM (we can't use cache SRAM because it's in
+	   the same memory region as the on-chip RAM and I/O space).
+
+	   Unfortunately, the dcache seems to be buggy, so we only use the
+	   icache for now.  */
+	v850e_cache_enable (0x0040 /*BHC*/, 0x0003 /*ICC*/, 0x0000 /*DCC*/);
+
+	rte_cb_early_init ();
+}
+
+void __init mach_get_physical_ram (unsigned long *ram_start,
+				   unsigned long *ram_len)
+{
+	/* We just use SDRAM here.  */
+	*ram_start = SDRAM_ADDR;
+	*ram_len = SDRAM_SIZE;
+}
+
+void mach_gettimeofday (struct timespec *tv)
+{
+	tv->tv_sec = 0;
+	tv->tv_nsec = 0;
+}
+
+/* Called before configuring an on-chip UART.  */
+void rte_nb85e_cb_uart_pre_configure (unsigned chan,
+				    unsigned cflags, unsigned baud)
+{
+	/* The RTE-NB85E-CB connects some general-purpose I/O pins on the
+	   CPU to the RTS/CTS lines the UART's serial connection, as follows:
+	   P00 = CTS (in), P01 = DSR (in), P02 = RTS (out), P03 = DTR (out). */
+
+	TEG_PORT0_PM = 0x03;	/* P00 and P01 inputs, P02 and P03 outputs */
+	TEG_PORT0_IO = 0x03;	/* Accept input */
+
+	/* Do pre-configuration for the actual UART.  */
+	teg_uart_pre_configure (chan, cflags, baud);
+}
+
+void __init mach_init_irqs (void)
+{
+	teg_init_irqs ();
+	rte_cb_init_irqs ();
+}