loongson.rar_loongson

/* * 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_LOONGSON_H #define __ASM_MACH_LOONGSON_LOONGSON_H #include <linux/io.h> #include <linux/init.h> #include <linux/irq.h> #include <linux/kconfig.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 unsigned long cpu_clock_freq; extern unsigned long memsize, highmemsize; /* loongson-specific command line, env and memory initialization */ extern void __init prom_init_memory(void); extern void __init prom_init_cmdline(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