Commit 85749d24 authored by Wu Zhangjin's avatar Wu Zhangjin Committed by Ralf Baechle
Browse files

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: default avatarWu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent 8e497117

arch/mips/Kconfig

+9 −23
Original line number Diff line number Diff line
@@ -174,30 +174,15 @@ config LASAT 
	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN

	select SYS_SUPPORTS_LITTLE_ENDIAN



config LEMOTE_FULOONG2E

	bool "Lemote Fuloong2e mini-PC"

	select ARCH_SPARSEMEM_ENABLE

	select CEVT_R4K

	select CSRC_R4K

	select SYS_HAS_CPU_LOONGSON2

	select DMA_NONCOHERENT

	select BOOT_ELF32

	select BOARD_SCACHE

	select HAVE_STD_PC_SERIAL_PORT

	select HW_HAS_PCI

	select I8259

	select ISA

	select IRQ_CPU

	select SYS_SUPPORTS_32BIT_KERNEL

	select SYS_SUPPORTS_64BIT_KERNEL

	select SYS_SUPPORTS_LITTLE_ENDIAN

	select SYS_SUPPORTS_HIGHMEM

	select SYS_HAS_EARLY_PRINTK

	select GENERIC_ISA_DMA_SUPPORT_BROKEN

	select CPU_HAS_WB

config MACH_LOONGSON

	bool "Loongson family of machines"

	help

	  Lemote Fuloong2e mini-PC board based on the Chinese Loongson-2E CPU and

	  an FPGA northbridge

	  This enables the support of Loongson family of machines.



	  Loongson is a family of general-purpose MIPS-compatible CPUs.

	  developed at Institute of Computing Technology (ICT),

	  Chinese Academy of Sciences (CAS) in the People's Republic

	  of China. The chief architect is Professor Weiwu Hu.



config MIPS_MALTA

	bool "MIPS Malta board"
@@ -668,6 +653,7 @@ source "arch/mips/sibyte/Kconfig" 
source "arch/mips/txx9/Kconfig"

source "arch/mips/vr41xx/Kconfig"

source "arch/mips/cavium-octeon/Kconfig"

source "arch/mips/loongson/Kconfig"



endmenu

arch/mips/Makefile

+4 −3
Original line number Diff line number Diff line
@@ -314,11 +314,12 @@ cflags-$(CONFIG_WR_PPMC) += -I$(srctree)/arch/mips/include/asm/mach-wrppmc 
load-$(CONFIG_WR_PPMC)		+= 0xffffffff80100000



#

# lemote fuloong2e mini-PC board

# Loongson family

#

core-$(CONFIG_LEMOTE_FULOONG2E) +=arch/mips/loongson/fuloong-2e/

core-$(CONFIG_MACH_LOONGSON) +=arch/mips/loongson/

cflags-$(CONFIG_MACH_LOONGSON) += -I$(srctree)/arch/mips/include/asm/mach-loongson \

                    -mno-branch-likely

load-$(CONFIG_LEMOTE_FULOONG2E) +=0xffffffff80100000

cflags-$(CONFIG_LEMOTE_FULOONG2E) += -I$(srctree)/arch/mips/include/asm/mach-loongson/



#

# MIPS Malta board

arch/mips/include/asm/mach-loongson/loongson.h

+11 −0
Original line number Diff line number Diff line
@@ -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)

arch/mips/include/asm/mach-loongson/machine.h

0 → 100644
+22 −0
Original line number Diff line number Diff line 
/*

 * 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 */

arch/mips/include/asm/mach-loongson/mem.h

0 → 100644
+30 −0
Original line number Diff line number Diff line 
/*

 * 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 */

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