c3d8d85019
This patchs uses a loongson_uart_base variable instead of the uart_base[] array and adds a new kernel option to avoid to compile uart_base.c all the time, which will save a little bit of memory for us. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org http://patchwork.linux-mips.org/patch/727/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
325 lines
11 KiB
C
325 lines
11 KiB
C
/*
|
|
* Copyright (C) 2009 Lemote, Inc.
|
|
* 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_LOONGSON_H
|
|
#define __ASM_MACH_LOONGSON_LOONGSON_H
|
|
|
|
#include <linux/io.h>
|
|
#include <linux/init.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 bus_clock, 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 set_irq_trigger_mode(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 */
|
|
|
|
#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)
|
|
|
|
/* 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 void loongson2_cpu_wait(void);
|
|
extern struct cpufreq_frequency_table loongson2_clockmod_table[];
|
|
|
|
/* Chip Config */
|
|
#define LOONGSON_CHIPCFG0 LOONGSON_REG(LOONGSON_REGBASE + 0x80)
|
|
#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 = (src) | 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_LOONGSON_LOONGSON_H */
|