arch/mips/include/asm/mach-loongson2ef/loongson.h - linux/kernel/git/gregkh/usb - Git at Google

 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Copyright (C) 2009 Lemote, Inc.
  * Author: Wu Zhangjin <wuzhangjin@gmail.com>
  */

 #ifndef __ASM_MACH_LOONGSON2EF_LOONGSON_H
 #define __ASM_MACH_LOONGSON2EF_LOONGSON_H

 #include <linux/io.h>
 #include <linux/init.h>
 #include <linux/irq.h>

 /* 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 u32 cpu_clock_freq;
 extern u32 memsize, highmemsize;

 /* loongson-specific command line, env and memory initialization */
 extern void __init prom_init_memory(void);
 extern void __init prom_init_machtype(void);
 extern void __init prom_init_env(void);
 #ifdef CONFIG_LOONGSON_UART_BASE
 extern unsigned long _loongson_uart_base, loongson_uart_base;
 extern void prom_init_loongson_uart_base(void);
 #endif

 static inline void prom_init_uart_base(void)
 {
 #ifdef CONFIG_LOONGSON_UART_BASE
 	prom_init_loongson_uart_base();
 #endif
 }

 /* irq operation functions */
 extern void bonito_irqdispatch(void);
 extern void __init bonito_irq_init(void);
 extern void __init mach_init_irq(void);
 extern void mach_irq_dispatch(unsigned int pending);
 extern int mach_i8259_irq(void);

 /* We need this in some places... */
 #define delay() ({		\
 	int x;				\
 	for (x = 0; x < 100000; x++)	\
 		__asm__ __volatile__(""); \
 })

 #define LOONGSON_REG(x) \
 	(*(volatile u32 *)((char *)CKSEG1ADDR(LOONGSON_REG_BASE) + (x)))

 #define LOONGSON_IRQ_BASE	32
 #define LOONGSON2_PERFCNT_IRQ	(MIPS_CPU_IRQ_BASE + 6) /* cpu perf counter */

 #include <linux/interrupt.h>
 static inline void do_perfcnt_IRQ(void)
 {
 #if IS_ENABLED(CONFIG_OPROFILE)
 	do_IRQ(LOONGSON2_PERFCNT_IRQ);
 #endif
 }

 #define LOONGSON_FLASH_BASE	0x1c000000
 #define LOONGSON_FLASH_SIZE	0x02000000	/* 32M */
 #define LOONGSON_FLASH_TOP	(LOONGSON_FLASH_BASE+LOONGSON_FLASH_SIZE-1)

 #define LOONGSON_LIO0_BASE	0x1e000000
 #define LOONGSON_LIO0_SIZE	0x01C00000	/* 28M */
 #define LOONGSON_LIO0_TOP	(LOONGSON_LIO0_BASE+LOONGSON_LIO0_SIZE-1)

 #define LOONGSON_BOOT_BASE	0x1fc00000
 #define LOONGSON_BOOT_SIZE	0x00100000	/* 1M */
 #define LOONGSON_BOOT_TOP	(LOONGSON_BOOT_BASE+LOONGSON_BOOT_SIZE-1)
 #define LOONGSON_REG_BASE	0x1fe00000
 #define LOONGSON_REG_SIZE	0x00100000	/* 256Bytes + 256Bytes + ??? */
 #define LOONGSON_REG_TOP	(LOONGSON_REG_BASE+LOONGSON_REG_SIZE-1)

 #define LOONGSON_LIO1_BASE	0x1ff00000
 #define LOONGSON_LIO1_SIZE	0x00100000	/* 1M */
 #define LOONGSON_LIO1_TOP	(LOONGSON_LIO1_BASE+LOONGSON_LIO1_SIZE-1)

 #define LOONGSON_PCILO0_BASE	0x10000000
 #define LOONGSON_PCILO1_BASE	0x14000000
 #define LOONGSON_PCILO2_BASE	0x18000000
 #define LOONGSON_PCILO_BASE	LOONGSON_PCILO0_BASE
 #define LOONGSON_PCILO_SIZE	0x0c000000	/* 64M * 3 */
 #define LOONGSON_PCILO_TOP	(LOONGSON_PCILO0_BASE+LOONGSON_PCILO_SIZE-1)

 #define LOONGSON_PCICFG_BASE	0x1fe80000
 #define LOONGSON_PCICFG_SIZE	0x00000800	/* 2K */
 #define LOONGSON_PCICFG_TOP	(LOONGSON_PCICFG_BASE+LOONGSON_PCICFG_SIZE-1)
 #define LOONGSON_PCIIO_BASE	0x1fd00000

 #define LOONGSON_PCIIO_SIZE	0x00100000	/* 1M */
 #define LOONGSON_PCIIO_TOP	(LOONGSON_PCIIO_BASE+LOONGSON_PCIIO_SIZE-1)

 /* Loongson Register Bases */

 #define LOONGSON_PCICONFIGBASE	0x00
 #define LOONGSON_REGBASE	0x100

 /* PCI Configuration Registers */

 #define LOONGSON_PCI_REG(x)	LOONGSON_REG(LOONGSON_PCICONFIGBASE + (x))
 #define LOONGSON_PCIDID		LOONGSON_PCI_REG(0x00)
 #define LOONGSON_PCICMD		LOONGSON_PCI_REG(0x04)
 #define LOONGSON_PCICLASS	LOONGSON_PCI_REG(0x08)
 #define LOONGSON_PCILTIMER	LOONGSON_PCI_REG(0x0c)
 #define LOONGSON_PCIBASE0	LOONGSON_PCI_REG(0x10)
 #define LOONGSON_PCIBASE1	LOONGSON_PCI_REG(0x14)
 #define LOONGSON_PCIBASE2	LOONGSON_PCI_REG(0x18)
 #define LOONGSON_PCIBASE3	LOONGSON_PCI_REG(0x1c)
 #define LOONGSON_PCIBASE4	LOONGSON_PCI_REG(0x20)
 #define LOONGSON_PCIEXPRBASE	LOONGSON_PCI_REG(0x30)
 #define LOONGSON_PCIINT		LOONGSON_PCI_REG(0x3c)

 #define LOONGSON_PCI_ISR4C	LOONGSON_PCI_REG(0x4c)

 #define LOONGSON_PCICMD_PERR_CLR	0x80000000
 #define LOONGSON_PCICMD_SERR_CLR	0x40000000
 #define LOONGSON_PCICMD_MABORT_CLR	0x20000000
 #define LOONGSON_PCICMD_MTABORT_CLR	0x10000000
 #define LOONGSON_PCICMD_TABORT_CLR	0x08000000
 #define LOONGSON_PCICMD_MPERR_CLR	0x01000000
 #define LOONGSON_PCICMD_PERRRESPEN	0x00000040
 #define LOONGSON_PCICMD_ASTEPEN		0x00000080
 #define LOONGSON_PCICMD_SERREN		0x00000100
 #define LOONGSON_PCILTIMER_BUSLATENCY	0x0000ff00
 #define LOONGSON_PCILTIMER_BUSLATENCY_SHIFT	8

 /* Loongson h/w Configuration */

 #define LOONGSON_GENCFG_OFFSET		0x4
 #define LOONGSON_GENCFG LOONGSON_REG(LOONGSON_REGBASE + LOONGSON_GENCFG_OFFSET)

 #define LOONGSON_GENCFG_DEBUGMODE	0x00000001
 #define LOONGSON_GENCFG_SNOOPEN		0x00000002
 #define LOONGSON_GENCFG_CPUSELFRESET	0x00000004

 #define LOONGSON_GENCFG_FORCE_IRQA	0x00000008
 #define LOONGSON_GENCFG_IRQA_ISOUT	0x00000010
 #define LOONGSON_GENCFG_IRQA_FROM_INT1	0x00000020
 #define LOONGSON_GENCFG_BYTESWAP	0x00000040

 #define LOONGSON_GENCFG_UNCACHED	0x00000080
 #define LOONGSON_GENCFG_PREFETCHEN	0x00000100
 #define LOONGSON_GENCFG_WBEHINDEN	0x00000200
 #define LOONGSON_GENCFG_CACHEALG	0x00000c00
 #define LOONGSON_GENCFG_CACHEALG_SHIFT	10
 #define LOONGSON_GENCFG_PCIQUEUE	0x00001000
 #define LOONGSON_GENCFG_CACHESTOP	0x00002000
 #define LOONGSON_GENCFG_MSTRBYTESWAP	0x00004000
 #define LOONGSON_GENCFG_BUSERREN	0x00008000
 #define LOONGSON_GENCFG_NORETRYTIMEOUT	0x00010000
 #define LOONGSON_GENCFG_SHORTCOPYTIMEOUT	0x00020000

 /* PCI address map control */

 #define LOONGSON_PCIMAP			LOONGSON_REG(LOONGSON_REGBASE + 0x10)
 #define LOONGSON_PCIMEMBASECFG		LOONGSON_REG(LOONGSON_REGBASE + 0x14)
 #define LOONGSON_PCIMAP_CFG		LOONGSON_REG(LOONGSON_REGBASE + 0x18)

 /* GPIO Regs - r/w */

 #define LOONGSON_GPIODATA		LOONGSON_REG(LOONGSON_REGBASE + 0x1c)
 #define LOONGSON_GPIOIE			LOONGSON_REG(LOONGSON_REGBASE + 0x20)

 /* ICU Configuration Regs - r/w */

 #define LOONGSON_INTEDGE		LOONGSON_REG(LOONGSON_REGBASE + 0x24)
 #define LOONGSON_INTSTEER		LOONGSON_REG(LOONGSON_REGBASE + 0x28)
 #define LOONGSON_INTPOL			LOONGSON_REG(LOONGSON_REGBASE + 0x2c)

 /* ICU Enable Regs - IntEn & IntISR are r/o. */

 #define LOONGSON_INTENSET		LOONGSON_REG(LOONGSON_REGBASE + 0x30)
 #define LOONGSON_INTENCLR		LOONGSON_REG(LOONGSON_REGBASE + 0x34)
 #define LOONGSON_INTEN			LOONGSON_REG(LOONGSON_REGBASE + 0x38)
 #define LOONGSON_INTISR			LOONGSON_REG(LOONGSON_REGBASE + 0x3c)

 /* ICU */
 #define LOONGSON_ICU_MBOXES		0x0000000f
 #define LOONGSON_ICU_MBOXES_SHIFT	0
 #define LOONGSON_ICU_DMARDY		0x00000010
 #define LOONGSON_ICU_DMAEMPTY		0x00000020
 #define LOONGSON_ICU_COPYRDY		0x00000040
 #define LOONGSON_ICU_COPYEMPTY		0x00000080
 #define LOONGSON_ICU_COPYERR		0x00000100
 #define LOONGSON_ICU_PCIIRQ		0x00000200
 #define LOONGSON_ICU_MASTERERR		0x00000400
 #define LOONGSON_ICU_SYSTEMERR		0x00000800
 #define LOONGSON_ICU_DRAMPERR		0x00001000
 #define LOONGSON_ICU_RETRYERR		0x00002000
 #define LOONGSON_ICU_GPIOS		0x01ff0000
 #define LOONGSON_ICU_GPIOS_SHIFT		16
 #define LOONGSON_ICU_GPINS		0x7e000000
 #define LOONGSON_ICU_GPINS_SHIFT		25
 #define LOONGSON_ICU_MBOX(N)		(1<<(LOONGSON_ICU_MBOXES_SHIFT+(N)))
 #define LOONGSON_ICU_GPIO(N)		(1<<(LOONGSON_ICU_GPIOS_SHIFT+(N)))
 #define LOONGSON_ICU_GPIN(N)		(1<<(LOONGSON_ICU_GPINS_SHIFT+(N)))

 /* PCI prefetch window base & mask */

 #define LOONGSON_MEM_WIN_BASE_L		LOONGSON_REG(LOONGSON_REGBASE + 0x40)
 #define LOONGSON_MEM_WIN_BASE_H		LOONGSON_REG(LOONGSON_REGBASE + 0x44)
 #define LOONGSON_MEM_WIN_MASK_L		LOONGSON_REG(LOONGSON_REGBASE + 0x48)
 #define LOONGSON_MEM_WIN_MASK_H		LOONGSON_REG(LOONGSON_REGBASE + 0x4c)

 /* PCI_Hit*_Sel_* */

 #define LOONGSON_PCI_HIT0_SEL_L		LOONGSON_REG(LOONGSON_REGBASE + 0x50)
 #define LOONGSON_PCI_HIT0_SEL_H		LOONGSON_REG(LOONGSON_REGBASE + 0x54)
 #define LOONGSON_PCI_HIT1_SEL_L		LOONGSON_REG(LOONGSON_REGBASE + 0x58)
 #define LOONGSON_PCI_HIT1_SEL_H		LOONGSON_REG(LOONGSON_REGBASE + 0x5c)
 #define LOONGSON_PCI_HIT2_SEL_L		LOONGSON_REG(LOONGSON_REGBASE + 0x60)
 #define LOONGSON_PCI_HIT2_SEL_H		LOONGSON_REG(LOONGSON_REGBASE + 0x64)

 /* PXArb Config & Status */

 #define LOONGSON_PXARB_CFG		LOONGSON_REG(LOONGSON_REGBASE + 0x68)
 #define LOONGSON_PXARB_STATUS		LOONGSON_REG(LOONGSON_REGBASE + 0x6c)

 /* Chip Config registor of each physical cpu package, PRid >= Loongson-2F */
 #define LOONGSON_CHIPCFG	(void __iomem *)TO_UNCAC(0x1fc00180)

 /* pcimap */

 #define LOONGSON_PCIMAP_PCIMAP_LO0	0x0000003f
 #define LOONGSON_PCIMAP_PCIMAP_LO0_SHIFT	0
 #define LOONGSON_PCIMAP_PCIMAP_LO1	0x00000fc0
 #define LOONGSON_PCIMAP_PCIMAP_LO1_SHIFT	6
 #define LOONGSON_PCIMAP_PCIMAP_LO2	0x0003f000
 #define LOONGSON_PCIMAP_PCIMAP_LO2_SHIFT	12
 #define LOONGSON_PCIMAP_PCIMAP_2	0x00040000
 #define LOONGSON_PCIMAP_WIN(WIN, ADDR)	\
 	((((ADDR)>>26) & LOONGSON_PCIMAP_PCIMAP_LO0) << ((WIN)*6))

 #ifdef CONFIG_CPU_SUPPORTS_CPUFREQ
 #include <linux/cpufreq.h>
 extern struct cpufreq_frequency_table loongson2_clockmod_table[];
 #endif

 /*
  * address windows configuration module
  *
  * loongson2e do not have this module
  */
 #ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG

 /* address window config module base address */
 #define LOONGSON_ADDRWINCFG_BASE		0x3ff00000ul
 #define LOONGSON_ADDRWINCFG_SIZE		0x180

 extern unsigned long _loongson_addrwincfg_base;
 #define LOONGSON_ADDRWINCFG(offset) \
 	(*(volatile u64 *)(_loongson_addrwincfg_base + (offset)))

 #define CPU_WIN0_BASE	LOONGSON_ADDRWINCFG(0x00)
 #define CPU_WIN1_BASE	LOONGSON_ADDRWINCFG(0x08)
 #define CPU_WIN2_BASE	LOONGSON_ADDRWINCFG(0x10)
 #define CPU_WIN3_BASE	LOONGSON_ADDRWINCFG(0x18)

 #define CPU_WIN0_MASK	LOONGSON_ADDRWINCFG(0x20)
 #define CPU_WIN1_MASK	LOONGSON_ADDRWINCFG(0x28)
 #define CPU_WIN2_MASK	LOONGSON_ADDRWINCFG(0x30)
 #define CPU_WIN3_MASK	LOONGSON_ADDRWINCFG(0x38)

 #define CPU_WIN0_MMAP	LOONGSON_ADDRWINCFG(0x40)
 #define CPU_WIN1_MMAP	LOONGSON_ADDRWINCFG(0x48)
 #define CPU_WIN2_MMAP	LOONGSON_ADDRWINCFG(0x50)
 #define CPU_WIN3_MMAP	LOONGSON_ADDRWINCFG(0x58)

 #define PCIDMA_WIN0_BASE	LOONGSON_ADDRWINCFG(0x60)
 #define PCIDMA_WIN1_BASE	LOONGSON_ADDRWINCFG(0x68)
 #define PCIDMA_WIN2_BASE	LOONGSON_ADDRWINCFG(0x70)
 #define PCIDMA_WIN3_BASE	LOONGSON_ADDRWINCFG(0x78)

 #define PCIDMA_WIN0_MASK	LOONGSON_ADDRWINCFG(0x80)
 #define PCIDMA_WIN1_MASK	LOONGSON_ADDRWINCFG(0x88)
 #define PCIDMA_WIN2_MASK	LOONGSON_ADDRWINCFG(0x90)
 #define PCIDMA_WIN3_MASK	LOONGSON_ADDRWINCFG(0x98)

 #define PCIDMA_WIN0_MMAP	LOONGSON_ADDRWINCFG(0xa0)
 #define PCIDMA_WIN1_MMAP	LOONGSON_ADDRWINCFG(0xa8)
 #define PCIDMA_WIN2_MMAP	LOONGSON_ADDRWINCFG(0xb0)
 #define PCIDMA_WIN3_MMAP	LOONGSON_ADDRWINCFG(0xb8)

 #define ADDRWIN_WIN0	0
 #define ADDRWIN_WIN1	1
 #define ADDRWIN_WIN2	2
 #define ADDRWIN_WIN3	3

 #define ADDRWIN_MAP_DST_DDR	0
 #define ADDRWIN_MAP_DST_PCI	1
 #define ADDRWIN_MAP_DST_LIO	1

 /*
  * s: CPU, PCIDMA
  * d: DDR, PCI, LIO
  * win: 0, 1, 2, 3
  * src: map source
  * dst: map destination
  * size: ~mask + 1
  */
 #define LOONGSON_ADDRWIN_CFG(s, d, w, src, dst, size) do {\
 	s##_WIN##w##_BASE = (src); \
 	s##_WIN##w##_MMAP = (dst) | ADDRWIN_MAP_DST_##d; \
 	s##_WIN##w##_MASK = ~(size-1); \
 } while (0)

 #define LOONGSON_ADDRWIN_CPUTOPCI(win, src, dst, size) \
 	LOONGSON_ADDRWIN_CFG(CPU, PCI, win, src, dst, size)
 #define LOONGSON_ADDRWIN_CPUTODDR(win, src, dst, size) \
 	LOONGSON_ADDRWIN_CFG(CPU, DDR, win, src, dst, size)
 #define LOONGSON_ADDRWIN_PCITODDR(win, src, dst, size) \
 	LOONGSON_ADDRWIN_CFG(PCIDMA, DDR, win, src, dst, size)

 #endif	/* ! CONFIG_CPU_SUPPORTS_ADDRWINCFG */

 #endif /* __ASM_MACH_LOONGSON2EF_LOONGSON_H */
	/* SPDX-License-Identifier: GPL-2.0-or-later */
	/*
	* Copyright (C) 2009 Lemote, Inc.
	* Author: Wu Zhangjin <wuzhangjin@gmail.com>
	*/

	#ifndef __ASM_MACH_LOONGSON2EF_LOONGSON_H
	#define __ASM_MACH_LOONGSON2EF_LOONGSON_H

	#include <linux/io.h>
	#include <linux/init.h>
	#include <linux/irq.h>

	/* 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 u32 cpu_clock_freq;
	extern u32 memsize, highmemsize;

	/* loongson-specific command line, env and memory initialization */
	extern void __init prom_init_memory(void);
	extern void __init prom_init_machtype(void);
	extern void __init prom_init_env(void);
	#ifdef CONFIG_LOONGSON_UART_BASE
	extern unsigned long _loongson_uart_base, loongson_uart_base;
	extern void prom_init_loongson_uart_base(void);
	#endif

	static inline void prom_init_uart_base(void)
	{
	#ifdef CONFIG_LOONGSON_UART_BASE
	prom_init_loongson_uart_base();
	#endif
	}

	/* irq operation functions */
	extern void bonito_irqdispatch(void);
	extern void __init bonito_irq_init(void);
	extern void __init mach_init_irq(void);
	extern void mach_irq_dispatch(unsigned int pending);
	extern int mach_i8259_irq(void);

	/* We need this in some places... */
	#define delay() ({ \
	int x; \
	for (x = 0; x < 100000; x++) \
	__asm__ __volatile__(""); \
	})

	#define LOONGSON_REG(x) \
	((volatile u32 )((char *)CKSEG1ADDR(LOONGSON_REG_BASE) + (x)))

	#define LOONGSON_IRQ_BASE 32
	#define LOONGSON2_PERFCNT_IRQ (MIPS_CPU_IRQ_BASE + 6) /* cpu perf counter */

	#include <linux/interrupt.h>
	static inline void do_perfcnt_IRQ(void)
	{
	#if IS_ENABLED(CONFIG_OPROFILE)
	do_IRQ(LOONGSON2_PERFCNT_IRQ);
	#endif
	}

	#define LOONGSON_FLASH_BASE 0x1c000000
	#define LOONGSON_FLASH_SIZE 0x02000000 /* 32M */
	#define LOONGSON_FLASH_TOP (LOONGSON_FLASH_BASE+LOONGSON_FLASH_SIZE-1)

	#define LOONGSON_LIO0_BASE 0x1e000000
	#define LOONGSON_LIO0_SIZE 0x01C00000 /* 28M */
	#define LOONGSON_LIO0_TOP (LOONGSON_LIO0_BASE+LOONGSON_LIO0_SIZE-1)

	#define LOONGSON_BOOT_BASE 0x1fc00000
	#define LOONGSON_BOOT_SIZE 0x00100000 /* 1M */
	#define LOONGSON_BOOT_TOP (LOONGSON_BOOT_BASE+LOONGSON_BOOT_SIZE-1)
	#define LOONGSON_REG_BASE 0x1fe00000
	#define LOONGSON_REG_SIZE 0x00100000 /* 256Bytes + 256Bytes + ??? */
	#define LOONGSON_REG_TOP (LOONGSON_REG_BASE+LOONGSON_REG_SIZE-1)

	#define LOONGSON_LIO1_BASE 0x1ff00000
	#define LOONGSON_LIO1_SIZE 0x00100000 /* 1M */
	#define LOONGSON_LIO1_TOP (LOONGSON_LIO1_BASE+LOONGSON_LIO1_SIZE-1)

	#define LOONGSON_PCILO0_BASE 0x10000000
	#define LOONGSON_PCILO1_BASE 0x14000000
	#define LOONGSON_PCILO2_BASE 0x18000000
	#define LOONGSON_PCILO_BASE LOONGSON_PCILO0_BASE
	#define LOONGSON_PCILO_SIZE 0x0c000000 /* 64M * 3 */
	#define LOONGSON_PCILO_TOP (LOONGSON_PCILO0_BASE+LOONGSON_PCILO_SIZE-1)

	#define LOONGSON_PCICFG_BASE 0x1fe80000
	#define LOONGSON_PCICFG_SIZE 0x00000800 /* 2K */
	#define LOONGSON_PCICFG_TOP (LOONGSON_PCICFG_BASE+LOONGSON_PCICFG_SIZE-1)
	#define LOONGSON_PCIIO_BASE 0x1fd00000

	#define LOONGSON_PCIIO_SIZE 0x00100000 /* 1M */
	#define LOONGSON_PCIIO_TOP (LOONGSON_PCIIO_BASE+LOONGSON_PCIIO_SIZE-1)

	/* Loongson Register Bases */

	#define LOONGSON_PCICONFIGBASE 0x00
	#define LOONGSON_REGBASE 0x100

	/* PCI Configuration Registers */

	#define LOONGSON_PCI_REG(x) LOONGSON_REG(LOONGSON_PCICONFIGBASE + (x))
	#define LOONGSON_PCIDID LOONGSON_PCI_REG(0x00)
	#define LOONGSON_PCICMD LOONGSON_PCI_REG(0x04)
	#define LOONGSON_PCICLASS LOONGSON_PCI_REG(0x08)
	#define LOONGSON_PCILTIMER LOONGSON_PCI_REG(0x0c)
	#define LOONGSON_PCIBASE0 LOONGSON_PCI_REG(0x10)
	#define LOONGSON_PCIBASE1 LOONGSON_PCI_REG(0x14)
	#define LOONGSON_PCIBASE2 LOONGSON_PCI_REG(0x18)
	#define LOONGSON_PCIBASE3 LOONGSON_PCI_REG(0x1c)
	#define LOONGSON_PCIBASE4 LOONGSON_PCI_REG(0x20)
	#define LOONGSON_PCIEXPRBASE LOONGSON_PCI_REG(0x30)
	#define LOONGSON_PCIINT LOONGSON_PCI_REG(0x3c)

	#define LOONGSON_PCI_ISR4C LOONGSON_PCI_REG(0x4c)

	#define LOONGSON_PCICMD_PERR_CLR 0x80000000
	#define LOONGSON_PCICMD_SERR_CLR 0x40000000
	#define LOONGSON_PCICMD_MABORT_CLR 0x20000000
	#define LOONGSON_PCICMD_MTABORT_CLR 0x10000000
	#define LOONGSON_PCICMD_TABORT_CLR 0x08000000
	#define LOONGSON_PCICMD_MPERR_CLR 0x01000000
	#define LOONGSON_PCICMD_PERRRESPEN 0x00000040
	#define LOONGSON_PCICMD_ASTEPEN 0x00000080
	#define LOONGSON_PCICMD_SERREN 0x00000100
	#define LOONGSON_PCILTIMER_BUSLATENCY 0x0000ff00
	#define LOONGSON_PCILTIMER_BUSLATENCY_SHIFT 8

	/* Loongson h/w Configuration */

	#define LOONGSON_GENCFG_OFFSET 0x4
	#define LOONGSON_GENCFG LOONGSON_REG(LOONGSON_REGBASE + LOONGSON_GENCFG_OFFSET)

	#define LOONGSON_GENCFG_DEBUGMODE 0x00000001
	#define LOONGSON_GENCFG_SNOOPEN 0x00000002
	#define LOONGSON_GENCFG_CPUSELFRESET 0x00000004

	#define LOONGSON_GENCFG_FORCE_IRQA 0x00000008
	#define LOONGSON_GENCFG_IRQA_ISOUT 0x00000010
	#define LOONGSON_GENCFG_IRQA_FROM_INT1 0x00000020
	#define LOONGSON_GENCFG_BYTESWAP 0x00000040

	#define LOONGSON_GENCFG_UNCACHED 0x00000080
	#define LOONGSON_GENCFG_PREFETCHEN 0x00000100
	#define LOONGSON_GENCFG_WBEHINDEN 0x00000200
	#define LOONGSON_GENCFG_CACHEALG 0x00000c00
	#define LOONGSON_GENCFG_CACHEALG_SHIFT 10
	#define LOONGSON_GENCFG_PCIQUEUE 0x00001000
	#define LOONGSON_GENCFG_CACHESTOP 0x00002000
	#define LOONGSON_GENCFG_MSTRBYTESWAP 0x00004000
	#define LOONGSON_GENCFG_BUSERREN 0x00008000
	#define LOONGSON_GENCFG_NORETRYTIMEOUT 0x00010000
	#define LOONGSON_GENCFG_SHORTCOPYTIMEOUT 0x00020000

	/* PCI address map control */

	#define LOONGSON_PCIMAP LOONGSON_REG(LOONGSON_REGBASE + 0x10)
	#define LOONGSON_PCIMEMBASECFG LOONGSON_REG(LOONGSON_REGBASE + 0x14)
	#define LOONGSON_PCIMAP_CFG LOONGSON_REG(LOONGSON_REGBASE + 0x18)

	/* GPIO Regs - r/w */

	#define LOONGSON_GPIODATA LOONGSON_REG(LOONGSON_REGBASE + 0x1c)
	#define LOONGSON_GPIOIE LOONGSON_REG(LOONGSON_REGBASE + 0x20)

	/* ICU Configuration Regs - r/w */

	#define LOONGSON_INTEDGE LOONGSON_REG(LOONGSON_REGBASE + 0x24)
	#define LOONGSON_INTSTEER LOONGSON_REG(LOONGSON_REGBASE + 0x28)
	#define LOONGSON_INTPOL LOONGSON_REG(LOONGSON_REGBASE + 0x2c)

	/* ICU Enable Regs - IntEn & IntISR are r/o. */

	#define LOONGSON_INTENSET LOONGSON_REG(LOONGSON_REGBASE + 0x30)
	#define LOONGSON_INTENCLR LOONGSON_REG(LOONGSON_REGBASE + 0x34)
	#define LOONGSON_INTEN LOONGSON_REG(LOONGSON_REGBASE + 0x38)
	#define LOONGSON_INTISR LOONGSON_REG(LOONGSON_REGBASE + 0x3c)

	/* ICU */
	#define LOONGSON_ICU_MBOXES 0x0000000f
	#define LOONGSON_ICU_MBOXES_SHIFT 0
	#define LOONGSON_ICU_DMARDY 0x00000010
	#define LOONGSON_ICU_DMAEMPTY 0x00000020
	#define LOONGSON_ICU_COPYRDY 0x00000040
	#define LOONGSON_ICU_COPYEMPTY 0x00000080
	#define LOONGSON_ICU_COPYERR 0x00000100
	#define LOONGSON_ICU_PCIIRQ 0x00000200
	#define LOONGSON_ICU_MASTERERR 0x00000400
	#define LOONGSON_ICU_SYSTEMERR 0x00000800
	#define LOONGSON_ICU_DRAMPERR 0x00001000
	#define LOONGSON_ICU_RETRYERR 0x00002000
	#define LOONGSON_ICU_GPIOS 0x01ff0000
	#define LOONGSON_ICU_GPIOS_SHIFT 16
	#define LOONGSON_ICU_GPINS 0x7e000000
	#define LOONGSON_ICU_GPINS_SHIFT 25
	#define LOONGSON_ICU_MBOX(N) (1<<(LOONGSON_ICU_MBOXES_SHIFT+(N)))
	#define LOONGSON_ICU_GPIO(N) (1<<(LOONGSON_ICU_GPIOS_SHIFT+(N)))
	#define LOONGSON_ICU_GPIN(N) (1<<(LOONGSON_ICU_GPINS_SHIFT+(N)))

	/* PCI prefetch window base & mask */

	#define LOONGSON_MEM_WIN_BASE_L LOONGSON_REG(LOONGSON_REGBASE + 0x40)
	#define LOONGSON_MEM_WIN_BASE_H LOONGSON_REG(LOONGSON_REGBASE + 0x44)
	#define LOONGSON_MEM_WIN_MASK_L LOONGSON_REG(LOONGSON_REGBASE + 0x48)
	#define LOONGSON_MEM_WIN_MASK_H LOONGSON_REG(LOONGSON_REGBASE + 0x4c)

	/* PCI_Hit_Sel_ */

	#define LOONGSON_PCI_HIT0_SEL_L LOONGSON_REG(LOONGSON_REGBASE + 0x50)
	#define LOONGSON_PCI_HIT0_SEL_H LOONGSON_REG(LOONGSON_REGBASE + 0x54)
	#define LOONGSON_PCI_HIT1_SEL_L LOONGSON_REG(LOONGSON_REGBASE + 0x58)
	#define LOONGSON_PCI_HIT1_SEL_H LOONGSON_REG(LOONGSON_REGBASE + 0x5c)
	#define LOONGSON_PCI_HIT2_SEL_L LOONGSON_REG(LOONGSON_REGBASE + 0x60)
	#define LOONGSON_PCI_HIT2_SEL_H LOONGSON_REG(LOONGSON_REGBASE + 0x64)

	/* PXArb Config & Status */

	#define LOONGSON_PXARB_CFG LOONGSON_REG(LOONGSON_REGBASE + 0x68)
	#define LOONGSON_PXARB_STATUS LOONGSON_REG(LOONGSON_REGBASE + 0x6c)

	/* Chip Config registor of each physical cpu package, PRid >= Loongson-2F */
	#define LOONGSON_CHIPCFG (void __iomem *)TO_UNCAC(0x1fc00180)

	/* pcimap */

	#define LOONGSON_PCIMAP_PCIMAP_LO0 0x0000003f
	#define LOONGSON_PCIMAP_PCIMAP_LO0_SHIFT 0
	#define LOONGSON_PCIMAP_PCIMAP_LO1 0x00000fc0
	#define LOONGSON_PCIMAP_PCIMAP_LO1_SHIFT 6
	#define LOONGSON_PCIMAP_PCIMAP_LO2 0x0003f000
	#define LOONGSON_PCIMAP_PCIMAP_LO2_SHIFT 12
	#define LOONGSON_PCIMAP_PCIMAP_2 0x00040000
	#define LOONGSON_PCIMAP_WIN(WIN, ADDR) \
	((((ADDR)>>26) & LOONGSON_PCIMAP_PCIMAP_LO0) << ((WIN)*6))

	#ifdef CONFIG_CPU_SUPPORTS_CPUFREQ
	#include <linux/cpufreq.h>
	extern struct cpufreq_frequency_table loongson2_clockmod_table[];
	#endif

	/*
	* address windows configuration module
	*
	* loongson2e do not have this module
	*/
	#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG

	/* address window config module base address */
	#define LOONGSON_ADDRWINCFG_BASE 0x3ff00000ul
	#define LOONGSON_ADDRWINCFG_SIZE 0x180

	extern unsigned long _loongson_addrwincfg_base;
	#define LOONGSON_ADDRWINCFG(offset) \
	((volatile u64 )(_loongson_addrwincfg_base + (offset)))

	#define CPU_WIN0_BASE LOONGSON_ADDRWINCFG(0x00)
	#define CPU_WIN1_BASE LOONGSON_ADDRWINCFG(0x08)
	#define CPU_WIN2_BASE LOONGSON_ADDRWINCFG(0x10)
	#define CPU_WIN3_BASE LOONGSON_ADDRWINCFG(0x18)

	#define CPU_WIN0_MASK LOONGSON_ADDRWINCFG(0x20)
	#define CPU_WIN1_MASK LOONGSON_ADDRWINCFG(0x28)
	#define CPU_WIN2_MASK LOONGSON_ADDRWINCFG(0x30)
	#define CPU_WIN3_MASK LOONGSON_ADDRWINCFG(0x38)

	#define CPU_WIN0_MMAP LOONGSON_ADDRWINCFG(0x40)
	#define CPU_WIN1_MMAP LOONGSON_ADDRWINCFG(0x48)
	#define CPU_WIN2_MMAP LOONGSON_ADDRWINCFG(0x50)
	#define CPU_WIN3_MMAP LOONGSON_ADDRWINCFG(0x58)

	#define PCIDMA_WIN0_BASE LOONGSON_ADDRWINCFG(0x60)
	#define PCIDMA_WIN1_BASE LOONGSON_ADDRWINCFG(0x68)
	#define PCIDMA_WIN2_BASE LOONGSON_ADDRWINCFG(0x70)
	#define PCIDMA_WIN3_BASE LOONGSON_ADDRWINCFG(0x78)

	#define PCIDMA_WIN0_MASK LOONGSON_ADDRWINCFG(0x80)
	#define PCIDMA_WIN1_MASK LOONGSON_ADDRWINCFG(0x88)
	#define PCIDMA_WIN2_MASK LOONGSON_ADDRWINCFG(0x90)
	#define PCIDMA_WIN3_MASK LOONGSON_ADDRWINCFG(0x98)

	#define PCIDMA_WIN0_MMAP LOONGSON_ADDRWINCFG(0xa0)
	#define PCIDMA_WIN1_MMAP LOONGSON_ADDRWINCFG(0xa8)
	#define PCIDMA_WIN2_MMAP LOONGSON_ADDRWINCFG(0xb0)
	#define PCIDMA_WIN3_MMAP LOONGSON_ADDRWINCFG(0xb8)

	#define ADDRWIN_WIN0 0
	#define ADDRWIN_WIN1 1
	#define ADDRWIN_WIN2 2
	#define ADDRWIN_WIN3 3

	#define ADDRWIN_MAP_DST_DDR 0
	#define ADDRWIN_MAP_DST_PCI 1
	#define ADDRWIN_MAP_DST_LIO 1

	/*
	* s: CPU, PCIDMA
	* d: DDR, PCI, LIO
	* win: 0, 1, 2, 3
	* src: map source
	* dst: map destination
	* size: ~mask + 1
	*/
	#define LOONGSON_ADDRWIN_CFG(s, d, w, src, dst, size) do {\
	s##_WIN##w##_BASE = (src); \
	s##_WIN##w##_MMAP = (dst) \| ADDRWIN_MAP_DST_##d; \
	s##_WIN##w##_MASK = ~(size-1); \
	} while (0)

	#define LOONGSON_ADDRWIN_CPUTOPCI(win, src, dst, size) \
	LOONGSON_ADDRWIN_CFG(CPU, PCI, win, src, dst, size)
	#define LOONGSON_ADDRWIN_CPUTODDR(win, src, dst, size) \
	LOONGSON_ADDRWIN_CFG(CPU, DDR, win, src, dst, size)
	#define LOONGSON_ADDRWIN_PCITODDR(win, src, dst, size) \
	LOONGSON_ADDRWIN_CFG(PCIDMA, DDR, win, src, dst, size)

	#endif /* ! CONFIG_CPU_SUPPORTS_ADDRWINCFG */

	#endif /* __ASM_MACH_LOONGSON2EF_LOONGSON_H */