1 files changed, 70 insertions, 0 deletions

diff --git a/arch/v850/kernel/ma.c b/arch/v850/kernel/ma.c
new file mode 100644
index 000000000000..b3dfbc5d2f40
--- /dev/null
+++ b/arch/v850/kernel/ma.c
@@ -0,0 +1,70 @@
+/*
+ * arch/v850/kernel/ma.c -- V850E/MA series of cpu chips
+ *
+ *  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/machdep.h>
+#include <asm/v850e_timer_d.h>
+
+#include "mach.h"
+
+void __init mach_sched_init (struct irqaction *timer_action)
+{
+        /* Start hardware timer.  */
+        v850e_timer_d_configure (0, HZ);
+        /* Install timer interrupt handler.  */
+        setup_irq (IRQ_INTCMD(0), timer_action);
+}
+
+static struct v850e_intc_irq_init irq_inits[] = {
+        { "IRQ", 0,             NUM_MACH_IRQS,  1, 7 },
+        { "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 },
+        { "DMA", IRQ_INTDMA(0), IRQ_INTDMA_NUM, 1, 2 },
+        { "CSI", IRQ_INTCSI(0), IRQ_INTCSI_NUM, 4, 4 },
+        { "SER", IRQ_INTSER(0), IRQ_INTSER_NUM, 4, 3 },
+        { "SR",  IRQ_INTSR(0),  IRQ_INTSR_NUM,  4, 4 },
+        { "ST",  IRQ_INTST(0),  IRQ_INTST_NUM,  4, 5 },
+        { 0 }
+};
+#define NUM_IRQ_INITS ((sizeof irq_inits / sizeof irq_inits[0]) - 1)
+
+static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
+
+/* Initialize MA chip interrupts.  */
+void __init ma_init_irqs (void)
+{
+        v850e_intc_init_irq_types (irq_inits, hw_itypes);
+}
+
+/* Called before configuring an on-chip UART.  */
+void ma_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
+{
+        /* We only know about the first two UART channels (though
+           specific chips may have more).  */
+        if (chan < 2) {
+                unsigned bits = 0x3 << (chan * 3);
+                /* Specify that the relevant pins on the chip should do
+                   serial I/O, not direct I/O.  */
+                MA_PORT4_PMC |= bits;
+                /* Specify that we're using the UART, not the CSI device.  */
+                MA_PORT4_PFC |= bits;
+        }
+}