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authorAkira Takeuchi <takeuchi.akr@jp.panasonic.com>2010-10-27 17:28:55 +0100
committerDavid Howells <dhowells@redhat.com>2010-10-27 17:28:55 +0100
commit368dd5acd154b09c043cc4392a74da01599b37d5 (patch)
treedd94ae3d044f6e774dec2437613515bd6b46dacb /arch/mn10300/unit-asb2364
parent04157a6e7df99fd5ed64955233d6e00ab6613614 (diff)
MN10300: And Panasonic AM34 subarch and implement SMP
Implement the Panasonic MN10300 AM34 CPU subarch and implement SMP support for MN10300. Also implement support for the MN2WS0060 processor and the ASB2364 evaluation board which are AM34 based. Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com> Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/mn10300/unit-asb2364')
-rw-r--r--arch/mn10300/unit-asb2364/Makefile10
-rw-r--r--arch/mn10300/unit-asb2364/include/unit/clock.h29
-rw-r--r--arch/mn10300/unit-asb2364/include/unit/fpga-regs.h50
-rw-r--r--arch/mn10300/unit-asb2364/include/unit/leds.h54
-rw-r--r--arch/mn10300/unit-asb2364/include/unit/serial.h151
-rw-r--r--arch/mn10300/unit-asb2364/include/unit/timex.h125
-rw-r--r--arch/mn10300/unit-asb2364/leds.c98
-rw-r--r--arch/mn10300/unit-asb2364/unit-init.c85
8 files changed, 602 insertions, 0 deletions
diff --git a/arch/mn10300/unit-asb2364/Makefile b/arch/mn10300/unit-asb2364/Makefile
new file mode 100644
index 000000000000..6dd27d65877a
--- /dev/null
+++ b/arch/mn10300/unit-asb2364/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the linux kernel.
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+# Note 2! The CFLAGS definitions are now in the main makefile...
+
+obj-y := unit-init.o leds.o
diff --git a/arch/mn10300/unit-asb2364/include/unit/clock.h b/arch/mn10300/unit-asb2364/include/unit/clock.h
new file mode 100644
index 000000000000..d34ac9a7508b
--- /dev/null
+++ b/arch/mn10300/unit-asb2364/include/unit/clock.h
@@ -0,0 +1,29 @@
+/* clock.h: unit-specific clocks
+ *
+ * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * Modified by Matsushita Electric Industrial Co., Ltd.
+ * Modifications:
+ * 23-Feb-2007 MEI Add define for watchdog timer.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_UNIT_CLOCK_H
+#define _ASM_UNIT_CLOCK_H
+
+#ifndef __ASSEMBLY__
+
+#define MN10300_IOCLK 100000000UL /* for DDR800 */
+/*#define MN10300_IOCLK 83333333UL */ /* for DDR667 */
+#define MN10300_IOBCLK MN10300_IOCLK /* IOBCLK is equal to IOCLK */
+
+#endif /* !__ASSEMBLY__ */
+
+#define MN10300_WDCLK 27000000UL
+
+#endif /* _ASM_UNIT_CLOCK_H */
diff --git a/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h
new file mode 100644
index 000000000000..a039a50c91db
--- /dev/null
+++ b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h
@@ -0,0 +1,50 @@
+/* ASB2364 FPGA registers
+ */
+
+#ifndef _ASM_UNIT_FPGA_REGS_H
+#define _ASM_UNIT_FPGA_REGS_H
+
+#include <asm/cpu-regs.h>
+
+#ifdef __KERNEL__
+
+#define ASB2364_FPGA_REG_RESET_LAN __SYSREG(0xa9001300, u16)
+#define ASB2364_FPGA_REG_RESET_UART __SYSREG(0xa9001304, u16)
+#define ASB2364_FPGA_REG_RESET_I2C __SYSREG(0xa9001308, u16)
+#define ASB2364_FPGA_REG_RESET_USB __SYSREG(0xa900130c, u16)
+#define ASB2364_FPGA_REG_RESET_AV __SYSREG(0xa9001310, u16)
+
+#define ASB2364_FPGA_REG_IRQ_LAN __SYSREG(0xa9001510, u16)
+#define ASB2364_FPGA_REG_IRQ_UART __SYSREG(0xa9001514, u16)
+#define ASB2364_FPGA_REG_IRQ_I2C __SYSREG(0xa9001518, u16)
+#define ASB2364_FPGA_REG_IRQ_USB __SYSREG(0xa900151c, u16)
+#define ASB2364_FPGA_REG_IRQ_FPGA __SYSREG(0xa9001524, u16)
+
+#define ASB2364_FPGA_REG_MASK_LAN __SYSREG(0xa9001590, u16)
+#define ASB2364_FPGA_REG_MASK_UART __SYSREG(0xa9001594, u16)
+#define ASB2364_FPGA_REG_MASK_I2C __SYSREG(0xa9001598, u16)
+#define ASB2364_FPGA_REG_MASK_USB __SYSREG(0xa900159c, u16)
+#define ASB2364_FPGA_REG_MASK_FPGA __SYSREG(0xa90015a4, u16)
+
+#define ASB2364_FPGA_REG_CPLD5_SET1 __SYSREG(0xa9002500, u16)
+#define ASB2364_FPGA_REG_CPLD5_SET2 __SYSREG(0xa9002504, u16)
+#define ASB2364_FPGA_REG_CPLD6_SET1 __SYSREG(0xa9002600, u16)
+#define ASB2364_FPGA_REG_CPLD6_SET2 __SYSREG(0xa9002604, u16)
+#define ASB2364_FPGA_REG_CPLD7_SET1 __SYSREG(0xa9002700, u16)
+#define ASB2364_FPGA_REG_CPLD7_SET2 __SYSREG(0xa9002704, u16)
+#define ASB2364_FPGA_REG_CPLD8_SET1 __SYSREG(0xa9002800, u16)
+#define ASB2364_FPGA_REG_CPLD8_SET2 __SYSREG(0xa9002804, u16)
+#define ASB2364_FPGA_REG_CPLD9_SET1 __SYSREG(0xa9002900, u16)
+#define ASB2364_FPGA_REG_CPLD9_SET2 __SYSREG(0xa9002904, u16)
+#define ASB2364_FPGA_REG_CPLD10_SET1 __SYSREG(0xa9002a00, u16)
+#define ASB2364_FPGA_REG_CPLD10_SET2 __SYSREG(0xa9002a04, u16)
+
+#define SyncExBus() \
+ do { \
+ unsigned short w; \
+ w = *(volatile short *)0xa9000000; \
+ } while (0)
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_UNIT_FPGA_REGS_H */
diff --git a/arch/mn10300/unit-asb2364/include/unit/leds.h b/arch/mn10300/unit-asb2364/include/unit/leds.h
new file mode 100644
index 000000000000..03a3933ad323
--- /dev/null
+++ b/arch/mn10300/unit-asb2364/include/unit/leds.h
@@ -0,0 +1,54 @@
+/* Unit-specific leds
+ *
+ * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * 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.
+ */
+
+#ifndef _ASM_UNIT_LEDS_H
+#define _ASM_UNIT_LEDS_H
+
+#include <asm/pio-regs.h>
+#include <asm/cpu-regs.h>
+#include <asm/exceptions.h>
+
+#define MN10300_USE_7SEGLEDS 0
+
+#define ASB2364_7SEGLEDS __SYSREG(0xA9001630, u32)
+
+/*
+ * use the 7-segment LEDs to indicate states
+ */
+
+#if MN10300_USE_7SEGLEDS
+/* flip the 7-segment LEDs between "Gdb-" and "----" */
+#define mn10300_set_gdbleds(ONOFF) \
+ do { \
+ ASB2364_7SEGLEDS = (ONOFF) ? 0x8543077f : 0x7f7f7f7f; \
+ } while (0)
+#else
+#define mn10300_set_gdbleds(ONOFF) do {} while (0)
+#endif
+
+#if MN10300_USE_7SEGLEDS
+/* indicate double-fault by displaying "db-f" on the LEDs */
+#define mn10300_set_dbfleds \
+ mov 0x43077f1d,d0 ; \
+ mov d0,(ASB2364_7SEGLEDS)
+#else
+#define mn10300_set_dbfleds
+#endif
+
+#ifndef __ASSEMBLY__
+extern void peripheral_leds_display_exception(enum exception_code);
+extern void peripheral_leds_led_chase(void);
+extern void peripheral_leds7x4_display_dec(unsigned int, unsigned int);
+extern void peripheral_leds7x4_display_hex(unsigned int, unsigned int);
+extern void debug_to_serial(const char *, int);
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_UNIT_LEDS_H */
diff --git a/arch/mn10300/unit-asb2364/include/unit/serial.h b/arch/mn10300/unit-asb2364/include/unit/serial.h
new file mode 100644
index 000000000000..7f048bbfdfd7
--- /dev/null
+++ b/arch/mn10300/unit-asb2364/include/unit/serial.h
@@ -0,0 +1,151 @@
+/* Unit-specific 8250 serial ports
+ *
+ * Copyright (C) 2005 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * 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.
+ */
+
+#ifndef _ASM_UNIT_SERIAL_H
+#define _ASM_UNIT_SERIAL_H
+
+#include <asm/cpu-regs.h>
+#include <proc/irq.h>
+#include <unit/fpga-regs.h>
+#include <linux/serial_reg.h>
+
+#define SERIAL_PORT0_BASE_ADDRESS 0xA8200000
+
+#define SERIAL_IRQ XIRQ1 /* single serial (TL16C550C) (Lo) */
+
+/*
+ * The ASB2364 has an 12.288 MHz clock
+ * for your UART.
+ *
+ * It'd be nice if someone built a serial card with a 24.576 MHz
+ * clock, since the 16550A is capable of handling a top speed of 1.5
+ * megabits/second; but this requires the faster clock.
+ */
+#define BASE_BAUD (12288000 / 16)
+
+/*
+ * dispose of the /dev/ttyS0 and /dev/ttyS1 serial ports
+ */
+#ifndef CONFIG_GDBSTUB_ON_TTYSx
+
+#define SERIAL_PORT_DFNS \
+ { \
+ .baud_base = BASE_BAUD, \
+ .irq = SERIAL_IRQ, \
+ .flags = STD_COM_FLAGS, \
+ .iomem_base = (u8 *) SERIAL_PORT0_BASE_ADDRESS, \
+ .iomem_reg_shift = 1, \
+ .io_type = SERIAL_IO_MEM, \
+ },
+
+#ifndef __ASSEMBLY__
+
+static inline void __debug_to_serial(const char *p, int n)
+{
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#else /* CONFIG_GDBSTUB_ON_TTYSx */
+
+#define SERIAL_PORT_DFNS /* stolen by gdb-stub */
+
+#if defined(CONFIG_GDBSTUB_ON_TTYS0)
+#define GDBPORT_SERIAL_RX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_RX * 4, u8)
+#define GDBPORT_SERIAL_TX __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_TX * 4, u8)
+#define GDBPORT_SERIAL_DLL __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLL * 4, u8)
+#define GDBPORT_SERIAL_DLM __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_DLM * 4, u8)
+#define GDBPORT_SERIAL_IER __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IER * 4, u8)
+#define GDBPORT_SERIAL_IIR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_IIR * 4, u8)
+#define GDBPORT_SERIAL_FCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_FCR * 4, u8)
+#define GDBPORT_SERIAL_LCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LCR * 4, u8)
+#define GDBPORT_SERIAL_MCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MCR * 4, u8)
+#define GDBPORT_SERIAL_LSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_LSR * 4, u8)
+#define GDBPORT_SERIAL_MSR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_MSR * 4, u8)
+#define GDBPORT_SERIAL_SCR __SYSREG(SERIAL_PORT0_BASE_ADDRESS + UART_SCR * 4, u8)
+#define GDBPORT_SERIAL_IRQ SERIAL_IRQ
+
+#elif defined(CONFIG_GDBSTUB_ON_TTYS1)
+#error The ASB2364 does not have a /dev/ttyS1
+#endif
+
+#ifndef __ASSEMBLY__
+
+static inline void __debug_to_serial(const char *p, int n)
+{
+ char ch;
+
+#define LSR_WAIT_FOR(STATE) \
+ do {} while (!(GDBPORT_SERIAL_LSR & UART_LSR_##STATE))
+#define FLOWCTL_QUERY(LINE) \
+ ({ GDBPORT_SERIAL_MSR & UART_MSR_##LINE; })
+#define FLOWCTL_WAIT_FOR(LINE) \
+ do {} while (!(GDBPORT_SERIAL_MSR & UART_MSR_##LINE))
+#define FLOWCTL_CLEAR(LINE) \
+ do { GDBPORT_SERIAL_MCR &= ~UART_MCR_##LINE; } while (0)
+#define FLOWCTL_SET(LINE) \
+ do { GDBPORT_SERIAL_MCR |= UART_MCR_##LINE; } while (0)
+
+ FLOWCTL_SET(DTR);
+
+ for (; n > 0; n--) {
+ LSR_WAIT_FOR(THRE);
+ FLOWCTL_WAIT_FOR(CTS);
+
+ ch = *p++;
+ if (ch == 0x0a) {
+ GDBPORT_SERIAL_TX = 0x0d;
+ LSR_WAIT_FOR(THRE);
+ FLOWCTL_WAIT_FOR(CTS);
+ }
+ GDBPORT_SERIAL_TX = ch;
+ }
+
+ FLOWCTL_CLEAR(DTR);
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* CONFIG_GDBSTUB_ON_TTYSx */
+
+#define SERIAL_INITIALIZE \
+do { \
+ /* release reset */ \
+ ASB2364_FPGA_REG_RESET_UART = 0x0001; \
+ SyncExBus(); \
+} while (0)
+
+#define SERIAL_CHECK_INTERRUPT \
+do { \
+ if ((ASB2364_FPGA_REG_IRQ_UART & 0x0001) == 0x0001) { \
+ return IRQ_NONE; \
+ } \
+} while (0)
+
+#define SERIAL_CLEAR_INTERRUPT \
+do { \
+ ASB2364_FPGA_REG_IRQ_UART = 0x0001; \
+ SyncExBus(); \
+} while (0)
+
+#define SERIAL_SET_INT_MASK \
+do { \
+ ASB2364_FPGA_REG_MASK_UART = 0x0001; \
+ SyncExBus(); \
+} while (0)
+
+#define SERIAL_CLEAR_INT_MASK \
+do { \
+ ASB2364_FPGA_REG_MASK_UART = 0x0000; \
+ SyncExBus(); \
+} while (0)
+
+#endif /* _ASM_UNIT_SERIAL_H */
diff --git a/arch/mn10300/unit-asb2364/include/unit/timex.h b/arch/mn10300/unit-asb2364/include/unit/timex.h
new file mode 100644
index 000000000000..b5223f705ef8
--- /dev/null
+++ b/arch/mn10300/unit-asb2364/include/unit/timex.h
@@ -0,0 +1,125 @@
+/* timex.h: MN2WS0038 architecture timer specifications
+ *
+ * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * 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.
+ */
+#ifndef _ASM_UNIT_TIMEX_H
+#define _ASM_UNIT_TIMEX_H
+
+#ifndef __ASSEMBLY__
+#include <linux/irq.h>
+#endif /* __ASSEMBLY__ */
+
+#include <asm/timer-regs.h>
+#include <unit/clock.h>
+#include <asm/param.h>
+
+/*
+ * jiffies counter specifications
+ */
+
+#define TMJCBR_MAX 0xffffff /* 24bit */
+#define TMJCBC TMTBC
+
+#define TMJCMD TMTMD
+#define TMJCBR TMTBR
+#define TMJCIRQ TMTIRQ
+#define TMJCICR TMTICR
+
+#ifndef __ASSEMBLY__
+
+#define MN10300_SRC_IOBCLK MN10300_IOBCLK
+
+#ifndef HZ
+# error HZ undeclared.
+#endif /* !HZ */
+
+#define MN10300_JCCLK (MN10300_SRC_IOBCLK)
+#define MN10300_TSCCLK (MN10300_SRC_IOBCLK)
+
+#define MN10300_JC_PER_HZ ((MN10300_JCCLK + HZ / 2) / HZ)
+#define MN10300_TSC_PER_HZ ((MN10300_TSCCLK + HZ / 2) / HZ)
+
+/* Check bit width of MTM interval value that sets base register */
+#if (MN10300_JC_PER_HZ - 1) > TMJCBR_MAX
+# error MTM tick timer interval value is overflow.
+#endif
+
+
+static inline void startup_jiffies_counter(void)
+{
+ u32 sync;
+
+ TMJCBR = MN10300_JC_PER_HZ - 1;
+ sync = TMJCBR;
+
+ TMJCMD = TMTMD_TMTLDE;
+ TMJCMD = TMTMD_TMTCNE;
+ sync = TMJCMD;
+
+ TMJCICR |= GxICR_ENABLE | GxICR_DETECT | GxICR_REQUEST;
+ sync = TMJCICR;
+}
+
+static inline void shutdown_jiffies_counter(void)
+{
+}
+
+#endif /* !__ASSEMBLY__ */
+
+
+/*
+ * timestamp counter specifications
+ */
+
+#define TMTSCBR_MAX 0xffffffff
+#define TMTSCMD TMSMD
+#define TMTSCBR TMSBR
+#define TMTSCBC TMSBC
+#define TMTSCICR TMSICR
+
+#ifndef __ASSEMBLY__
+
+static inline void startup_timestamp_counter(void)
+{
+ u32 sync;
+
+ /* set up TMS(Timestamp) 32bit timer register to count real time
+ * - count down from 4Gig-1 to 0 and wrap at IOBCLK rate
+ */
+
+ TMTSCBR = TMTSCBR_MAX;
+ sync = TMTSCBR;
+
+ TMTSCICR = 0;
+ sync = TMTSCICR;
+
+ TMTSCMD = TMTMD_TMTLDE;
+ TMTSCMD = TMTMD_TMTCNE;
+ sync = TMTSCMD;
+}
+
+static inline void shutdown_timestamp_counter(void)
+{
+ TMTSCMD = 0;
+}
+
+/*
+ * we use a cascaded pair of 16-bit down-counting timers to count I/O
+ * clock cycles for the purposes of time keeping
+ */
+typedef unsigned long cycles_t;
+
+static inline cycles_t read_timestamp_counter(void)
+{
+ return (cycles_t)TMTSCBC;
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_UNIT_TIMEX_H */
diff --git a/arch/mn10300/unit-asb2364/leds.c b/arch/mn10300/unit-asb2364/leds.c
new file mode 100644
index 000000000000..1ff830c372b3
--- /dev/null
+++ b/arch/mn10300/unit-asb2364/leds.c
@@ -0,0 +1,98 @@
+/* leds.c: ASB2364 peripheral 7seg LEDs x4 support
+ *
+ * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/intctl-regs.h>
+#include <asm/rtc-regs.h>
+#include <unit/leds.h>
+
+#if MN10300_USE_7SEGLEDS
+static const u8 asb2364_led_hex_tbl[16] = {
+ 0x80, 0xf2, 0x48, 0x60, 0x32, 0x24, 0x04, 0xf0,
+ 0x00, 0x20, 0x10, 0x06, 0x8c, 0x42, 0x0c, 0x1c
+};
+
+static const u32 asb2364_led_chase_tbl[6] = {
+ ~0x02020202, /* top - segA */
+ ~0x04040404, /* right top - segB */
+ ~0x08080808, /* right bottom - segC */
+ ~0x10101010, /* bottom - segD */
+ ~0x20202020, /* left bottom - segE */
+ ~0x40404040, /* left top - segF */
+};
+
+static unsigned asb2364_led_chase;
+
+void peripheral_leds7x4_display_dec(unsigned int val, unsigned int points)
+{
+ u32 leds;
+
+ leds = asb2364_led_hex_tbl[(val/1000) % 10];
+ leds <<= 8;
+ leds |= asb2364_led_hex_tbl[(val/100) % 10];
+ leds <<= 8;
+ leds |= asb2364_led_hex_tbl[(val/10) % 10];
+ leds <<= 8;
+ leds |= asb2364_led_hex_tbl[val % 10];
+ leds |= points^0x01010101;
+
+ ASB2364_7SEGLEDS = leds;
+}
+
+void peripheral_leds7x4_display_hex(unsigned int val, unsigned int points)
+{
+ u32 leds;
+
+ leds = asb2364_led_hex_tbl[(val/1000) % 10];
+ leds <<= 8;
+ leds |= asb2364_led_hex_tbl[(val/100) % 10];
+ leds <<= 8;
+ leds |= asb2364_led_hex_tbl[(val/10) % 10];
+ leds <<= 8;
+ leds |= asb2364_led_hex_tbl[val % 10];
+ leds |= points^0x01010101;
+
+ ASB2364_7SEGLEDS = leds;
+}
+
+/* display triple horizontal bar and exception code */
+void peripheral_leds_display_exception(enum exception_code code)
+{
+ u32 leds;
+
+ leds = asb2364_led_hex_tbl[(code/0x100) % 0x10];
+ leds <<= 8;
+ leds |= asb2364_led_hex_tbl[(code/0x10) % 0x10];
+ leds <<= 8;
+ leds |= asb2364_led_hex_tbl[code % 0x10];
+ leds |= 0x6d010101;
+
+ ASB2364_7SEGLEDS = leds;
+}
+
+void peripheral_leds_led_chase(void)
+{
+ ASB2364_7SEGLEDS = asb2364_led_chase_tbl[asb2364_led_chase];
+ asb2364_led_chase++;
+ if (asb2364_led_chase >= 6)
+ asb2364_led_chase = 0;
+}
+#else /* MN10300_USE_7SEGLEDS */
+void peripheral_leds7x4_display_dec(unsigned int val, unsigned int points) { }
+void peripheral_leds7x4_display_hex(unsigned int val, unsigned int points) { }
+void peripheral_leds_display_exception(enum exception_code code) { }
+void peripheral_leds_led_chase(void) { }
+#endif /* MN10300_USE_7SEGLEDS */
diff --git a/arch/mn10300/unit-asb2364/unit-init.c b/arch/mn10300/unit-asb2364/unit-init.c
new file mode 100644
index 000000000000..a3fc09b43f84
--- /dev/null
+++ b/arch/mn10300/unit-asb2364/unit-init.c
@@ -0,0 +1,85 @@
+/* ASB2364 initialisation
+ *
+ * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+#include <asm/setup.h>
+#include <asm/processor.h>
+#include <asm/irq.h>
+#include <asm/intctl-regs.h>
+
+/*
+ * initialise some of the unit hardware before gdbstub is set up
+ */
+asmlinkage void __init unit_init(void)
+{
+ /* set up the external interrupts */
+
+ /* XIRQ[0]: NAND RXBY */
+ /* SET_XIRQ_TRIGGER(0, XIRQ_TRIGGER_LOWLEVEL); */
+
+ /* XIRQ[1]: LAN, UART, I2C, USB, PCI, FPGA */
+ SET_XIRQ_TRIGGER(1, XIRQ_TRIGGER_LOWLEVEL);
+
+ /* XIRQ[2]: Extend Slot 1-9 */
+ /* SET_XIRQ_TRIGGER(2, XIRQ_TRIGGER_LOWLEVEL); */
+
+#if defined(CONFIG_EXT_SERIAL_IRQ_LEVEL) && \
+ defined(CONFIG_ETHERNET_IRQ_LEVEL) && \
+ (CONFIG_EXT_SERIAL_IRQ_LEVEL != CONFIG_ETHERNET_IRQ_LEVEL)
+# error CONFIG_EXT_SERIAL_IRQ_LEVEL != CONFIG_ETHERNET_IRQ_LEVEL
+#endif
+
+#if defined(CONFIG_EXT_SERIAL_IRQ_LEVEL)
+ set_intr_level(XIRQ1, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL));
+#elif defined(CONFIG_ETHERNET_IRQ_LEVEL)
+ set_intr_level(XIRQ1, NUM2GxICR_LEVEL(CONFIG_ETHERNET_IRQ_LEVEL));
+#endif
+}
+
+/*
+ * initialise the rest of the unit hardware after gdbstub is ready
+ */
+asmlinkage void __init unit_setup(void)
+{
+
+}
+
+/*
+ * initialise the external interrupts used by a unit of this type
+ */
+void __init unit_init_IRQ(void)
+{
+ unsigned int extnum;
+
+ for (extnum = 0 ; extnum < NR_XIRQS ; extnum++) {
+ switch (GET_XIRQ_TRIGGER(extnum)) {
+ /* LEVEL triggered interrupts should be made
+ * post-ACK'able as they hold their lines until
+ * serviced
+ */
+ case XIRQ_TRIGGER_HILEVEL:
+ case XIRQ_TRIGGER_LOWLEVEL:
+ mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum));
+ break;
+ default:
+ break;
+ }
+ }
+
+#define IRQCTL __SYSREG(0xd5000090, u32)
+ IRQCTL |= 0x02;
+}

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