MIPS: Loongson: Split common loongson source code out

To share common loongson source code between all of the loongson-based
machines. there is a need to split it out of the fuloong-2e/ directory.
at the same time, other according tuning is needed. the machine-specific
parts are defined as macros in relative header file, pci.h, mem.h,
machine.h.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

4 files changed, 72 insertions, 3 deletions

diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h
index e9f74dee24e..da70bcf2304 100644
--- a/arch/mips/include/asm/mach-loongson/loongson.h
+++ b/arch/mips/include/asm/mach-loongson/loongson.h
@@ -21,6 +21,10 @@
 /* loongson internal northbridge initialization */
 extern void bonito_irq_init(void);
 
+/* machine-specific reboot/halt operation */
+extern void mach_prepare_reboot(void);
+extern void mach_prepare_shutdown(void);
+
 /* environment arguments from bootloader */
 extern unsigned long bus_clock, cpu_clock_freq;
 extern unsigned long memsize, highmemsize;
@@ -30,6 +34,13 @@ extern void __init prom_init_memory(void);
 extern void __init prom_init_cmdline(void);
 extern void __init prom_init_env(void);
 
+/* irq operation functions */
+extern void bonito_irqdispatch(void);
+extern void __init bonito_irq_init(void);
+extern void __init set_irq_trigger_mode(void);
+extern void __init mach_init_irq(void);
+extern void mach_irq_dispatch(unsigned int pending);
+
 /* PCI Configuration Registers */
 #define LOONGSON_PCI_ISR4C  BONITO_PCI_REG(0x4c)
 
diff --git a/arch/mips/include/asm/mach-loongson/machine.h b/arch/mips/include/asm/mach-loongson/machine.h
new file mode 100644
index 00000000000..8e60d363594
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson/machine.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin <wuzj@lemote.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_MACH_LOONGSON_MACHINE_H
+#define __ASM_MACH_LOONGSON_MACHINE_H
+
+#ifdef CONFIG_LEMOTE_FULOONG2E
+
+#define LOONGSON_UART_BASE (BONITO_PCIIO_BASE + 0x3f8)
+
+#define LOONGSON_MACHNAME "lemote-fuloong-2e-box"
+
+#endif
+
+#endif /* __ASM_MACH_LOONGSON_MACHINE_H */
diff --git a/arch/mips/include/asm/mach-loongson/mem.h b/arch/mips/include/asm/mach-loongson/mem.h
new file mode 100644
index 00000000000..bd7b3cba7e3
--- /dev/null
+++ b/arch/mips/include/asm/mach-loongson/mem.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
+ * Author: Wu Zhangjin <wuzj@lemote.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_MACH_LOONGSON_MEM_H
+#define __ASM_MACH_LOONGSON_MEM_H
+
+/*
+ * On Lemote Loongson 2e
+ *
+ * the high memory space starts from 512M.
+ * the peripheral registers reside between 0x1000:0000 and 0x2000:0000.
+ */
+
+#ifdef CONFIG_LEMOTE_FULOONG2E
+
+#define LOONGSON_HIGHMEM_START  0x20000000
+
+#define LOONGSON_MMIO_MEM_START 0x10000000
+#define LOONGSON_MMIO_MEM_END   0x20000000
+
+#endif
+
+#endif /* __ASM_MACH_LOONGSON_MEM_H */
diff --git a/arch/mips/include/asm/mach-loongson/pci.h b/arch/mips/include/asm/mach-loongson/pci.h
index e229b2904cc..f1663ca81da 100644
--- a/arch/mips/include/asm/mach-loongson/pci.h
+++ b/arch/mips/include/asm/mach-loongson/pci.h
@@ -24,8 +24,14 @@
 
 extern struct pci_ops bonito64_pci_ops;
 
-#define LOONGSON2E_PCI_MEM_START	BONITO_PCILO1_BASE
-#define LOONGSON2E_PCI_MEM_END		(BONITO_PCILO1_BASE + 0x04000000 * 2)
-#define LOONGSON2E_PCI_IO_START		0x00004000UL
+#ifdef CONFIG_LEMOTE_FULOONG2E
+
+/* this pci memory space is mapped by pcimap in pci.c */
+#define LOONGSON_PCI_MEM_START	BONITO_PCILO1_BASE
+#define LOONGSON_PCI_MEM_END	(BONITO_PCILO1_BASE + 0x04000000 * 2)
+/* this is an offset from mips_io_port_base */
+#define LOONGSON_PCI_IO_START	0x00004000UL
+
+#endif
 
 #endif /* !__ASM_MACH_LOONGSON_PCI_H_ */