1 files changed, 74 insertions, 0 deletions

diff --git a/arch/v850/kernel/me2.c b/arch/v850/kernel/me2.c
new file mode 100644
index 000000000000..6527c218f91d
--- /dev/null
+++ b/arch/v850/kernel/me2.c
@@ -0,0 +1,74 @@
+/*
+ * arch/v850/kernel/me2.c -- V850E/ME2 chip-specific support
+ *
+ *  Copyright (C) 2003  NEC Corporation
+ *  Copyright (C) 2003  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_CPU_IRQS,      1, 7 },
+        { "INTP",   IRQ_INTP(0),      IRQ_INTP_NUM,      1, 5 },
+        { "CMD",    IRQ_INTCMD(0),    IRQ_INTCMD_NUM,    1, 3 },
+        { "UBTIRE", IRQ_INTUBTIRE(0), IRQ_INTUBTIRE_NUM, 5, 4 },
+        { "UBTIR",  IRQ_INTUBTIR(0),  IRQ_INTUBTIR_NUM,  5, 4 },
+        { "UBTIT",  IRQ_INTUBTIT(0),  IRQ_INTUBTIT_NUM,  5, 4 },
+        { "UBTIF",  IRQ_INTUBTIF(0),  IRQ_INTUBTIF_NUM,  5, 4 },
+        { "UBTITO", IRQ_INTUBTITO(0), IRQ_INTUBTITO_NUM, 5, 4 },
+        { 0 }
+};
+#define NUM_IRQ_INITS ((sizeof irq_inits / sizeof irq_inits[0]) - 1)
+
+static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
+
+/* Initialize V850E/ME2 chip interrupts.  */
+void __init me2_init_irqs (void)
+{
+        v850e_intc_init_irq_types (irq_inits, hw_itypes);
+}
+
+/* Called before configuring an on-chip UART.  */
+void me2_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
+{
+        if (chan == 0) {
+                /* Specify that the relevent pins on the chip should do
+                   serial I/O, not direct I/O.  */
+                ME2_PORT1_PMC |= 0xC;
+                /* Specify that we're using the UART, not the CSI device. */
+                ME2_PORT1_PFC |= 0xC;
+        } else if (chan == 1) {
+                /* Specify that the relevent pins on the chip should do
+                   serial I/O, not direct I/O.  */
+                ME2_PORT2_PMC |= 0x6;
+                /* Specify that we're using the UART, not the CSI device. */
+                ME2_PORT2_PFC |= 0x6;
+        }
+}