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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2009 Lemote, Inc.
* Author: Wu Zhangjin <wuzhangjin@gmail.com>
*/
#ifndef __ASM_MACH_LOONGSON64_LOONGSON_H
#define __ASM_MACH_LOONGSON64_LOONGSON_H
#include <linux/io.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <boot_param.h>
enum loongson_fw_interface {
LOONGSON_LEFI,
LOONGSON_DTB,
};
/* machine-specific boot configuration */
struct loongson_system_configuration {
enum loongson_fw_interface fw_interface;
u32 nr_cpus;
u32 nr_nodes;
int cores_per_node;
int cores_per_package;
u16 boot_cpu_id;
u16 reserved_cpus_mask;
enum loongson_cpu_type cputype;
enum loongson_bridge_type bridgetype;
u64 restart_addr;
u64 poweroff_addr;
u64 suspend_addr;
u64 vgabios_addr;
u32 dma_mask_bits;
u64 workarounds;
void (*early_config)(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;
extern const struct plat_smp_ops loongson3_smp_ops;
/* loongson-specific command line, env and memory initialization */
extern void __init prom_dtb_init_env(void);
extern void __init prom_lefi_init_env(void);
extern void __init szmem(unsigned int node);
extern void *loongson_fdt_blob;
/* irq operation functions */
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 LOONGSON3_REG8(base, x) \
(*(volatile u8 *)((char *)TO_UNCAC(base) + (x)))
#define LOONGSON3_REG32(base, x) \
(*(volatile u32 *)((char *)TO_UNCAC(base) + (x)))
#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)
/* Loongson-3 specific registers */
#define LOONGSON3_REG_BASE 0x3ff00000
#define LOONGSON3_REG_SIZE 0x00100000 /* 256Bytes + 256Bytes + ??? */
#define LOONGSON3_REG_TOP (LOONGSON3_REG_BASE+LOONGSON3_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 loongson_sysconf.pci_io_base
#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)
#define MAX_PACKAGES 4
/* Chip Config registor of each physical cpu package, PRid >= Loongson-2F */
extern u64 loongson_chipcfg[MAX_PACKAGES];
#define LOONGSON_CHIPCFG(id) (*(volatile u32 *)(loongson_chipcfg[id]))
/* Chip Temperature registor of each physical cpu package, PRid >= Loongson-3A */
extern u64 loongson_chiptemp[MAX_PACKAGES];
#define LOONGSON_CHIPTEMP(id) (*(volatile u32 *)(loongson_chiptemp[id]))
/* Freq Control register of each physical cpu package, PRid >= Loongson-3B */
extern u64 loongson_freqctrl[MAX_PACKAGES];
#define LOONGSON_FREQCTRL(id) (*(volatile u32 *)(loongson_freqctrl[id]))
/* 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))
#endif /* __ASM_MACH_LOONGSON64_LOONGSON_H */
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