linux/arch/loongarch/include/asm/loongson.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Author: Huacai Chen <chenhuacai@loongson.cn>
   4 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
   5 */
   6
   7#ifndef __ASM_LOONGSON_H
   8#define __ASM_LOONGSON_H
   9
  10#include <linux/init.h>
  11#include <linux/io.h>
  12#include <linux/irq.h>
  13#include <linux/pci.h>
  14#include <asm/addrspace.h>
  15#include <asm/bootinfo.h>
  16
  17extern const struct plat_smp_ops loongson3_smp_ops;
  18
  19#define LOONGSON_REG(x) \
  20        (*(volatile u32 *)((char *)TO_UNCACHE(LOONGSON_REG_BASE) + (x)))
  21
  22#define LOONGSON_LIO_BASE       0x18000000
  23#define LOONGSON_LIO_SIZE       0x00100000      /* 1M */
  24#define LOONGSON_LIO_TOP        (LOONGSON_LIO_BASE+LOONGSON_LIO_SIZE-1)
  25
  26#define LOONGSON_BOOT_BASE      0x1c000000
  27#define LOONGSON_BOOT_SIZE      0x02000000      /* 32M */
  28#define LOONGSON_BOOT_TOP       (LOONGSON_BOOT_BASE+LOONGSON_BOOT_SIZE-1)
  29
  30#define LOONGSON_REG_BASE       0x1fe00000
  31#define LOONGSON_REG_SIZE       0x00100000      /* 1M */
  32#define LOONGSON_REG_TOP        (LOONGSON_REG_BASE+LOONGSON_REG_SIZE-1)
  33
  34/* GPIO Regs - r/w */
  35
  36#define LOONGSON_GPIODATA               LOONGSON_REG(0x11c)
  37#define LOONGSON_GPIOIE                 LOONGSON_REG(0x120)
  38#define LOONGSON_REG_GPIO_BASE          (LOONGSON_REG_BASE + 0x11c)
  39
  40#define MAX_PACKAGES 16
  41
  42#define xconf_readl(addr) readl(addr)
  43#define xconf_readq(addr) readq(addr)
  44
  45static inline void xconf_writel(u32 val, volatile void __iomem *addr)
  46{
  47        asm volatile (
  48        "       st.w    %[v], %[hw], 0  \n"
  49        "       ld.b    $zero, %[hw], 0 \n"
  50        :
  51        : [hw] "r" (addr), [v] "r" (val)
  52        );
  53}
  54
  55static inline void xconf_writeq(u64 val64, volatile void __iomem *addr)
  56{
  57        asm volatile (
  58        "       st.d    %[v], %[hw], 0  \n"
  59        "       ld.b    $zero, %[hw], 0 \n"
  60        :
  61        : [hw] "r" (addr),  [v] "r" (val64)
  62        );
  63}
  64
  65/* ============== LS7A registers =============== */
  66#define LS7A_PCH_REG_BASE               0x10000000UL
  67/* LPC regs */
  68#define LS7A_LPC_REG_BASE               (LS7A_PCH_REG_BASE + 0x00002000)
  69/* CHIPCFG regs */
  70#define LS7A_CHIPCFG_REG_BASE           (LS7A_PCH_REG_BASE + 0x00010000)
  71/* MISC reg base */
  72#define LS7A_MISC_REG_BASE              (LS7A_PCH_REG_BASE + 0x00080000)
  73/* ACPI regs */
  74#define LS7A_ACPI_REG_BASE              (LS7A_MISC_REG_BASE + 0x00050000)
  75/* RTC regs */
  76#define LS7A_RTC_REG_BASE               (LS7A_MISC_REG_BASE + 0x00050100)
  77
  78#define LS7A_DMA_CFG                    (volatile void *)TO_UNCACHE(LS7A_CHIPCFG_REG_BASE + 0x041c)
  79#define LS7A_DMA_NODE_SHF               8
  80#define LS7A_DMA_NODE_MASK              0x1F00
  81
  82#define LS7A_INT_MASK_REG               (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x020)
  83#define LS7A_INT_EDGE_REG               (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x060)
  84#define LS7A_INT_CLEAR_REG              (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x080)
  85#define LS7A_INT_HTMSI_EN_REG           (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x040)
  86#define LS7A_INT_ROUTE_ENTRY_REG        (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x100)
  87#define LS7A_INT_HTMSI_VEC_REG          (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x200)
  88#define LS7A_INT_STATUS_REG             (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x3a0)
  89#define LS7A_INT_POL_REG                (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x3e0)
  90#define LS7A_LPC_INT_CTL                (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x2000)
  91#define LS7A_LPC_INT_ENA                (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x2004)
  92#define LS7A_LPC_INT_STS                (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x2008)
  93#define LS7A_LPC_INT_CLR                (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x200c)
  94#define LS7A_LPC_INT_POL                (volatile void *)TO_UNCACHE(LS7A_PCH_REG_BASE + 0x2010)
  95
  96#define LS7A_PMCON_SOC_REG              (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x000)
  97#define LS7A_PMCON_RESUME_REG           (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x004)
  98#define LS7A_PMCON_RTC_REG              (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x008)
  99#define LS7A_PM1_EVT_REG                (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x00c)
 100#define LS7A_PM1_ENA_REG                (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x010)
 101#define LS7A_PM1_CNT_REG                (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x014)
 102#define LS7A_PM1_TMR_REG                (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x018)
 103#define LS7A_P_CNT_REG                  (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x01c)
 104#define LS7A_GPE0_STS_REG               (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x028)
 105#define LS7A_GPE0_ENA_REG               (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x02c)
 106#define LS7A_RST_CNT_REG                (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x030)
 107#define LS7A_WD_SET_REG                 (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x034)
 108#define LS7A_WD_TIMER_REG               (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x038)
 109#define LS7A_THSENS_CNT_REG             (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x04c)
 110#define LS7A_GEN_RTC_1_REG              (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x050)
 111#define LS7A_GEN_RTC_2_REG              (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x054)
 112#define LS7A_DPM_CFG_REG                (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x400)
 113#define LS7A_DPM_STS_REG                (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x404)
 114#define LS7A_DPM_CNT_REG                (volatile void *)TO_UNCACHE(LS7A_ACPI_REG_BASE + 0x408)
 115
 116typedef enum {
 117        ACPI_PCI_HOTPLUG_STATUS = 1 << 1,
 118        ACPI_CPU_HOTPLUG_STATUS = 1 << 2,
 119        ACPI_MEM_HOTPLUG_STATUS = 1 << 3,
 120        ACPI_POWERBUTTON_STATUS = 1 << 8,
 121        ACPI_RTC_WAKE_STATUS    = 1 << 10,
 122        ACPI_PCI_WAKE_STATUS    = 1 << 14,
 123        ACPI_ANY_WAKE_STATUS    = 1 << 15,
 124} AcpiEventStatusBits;
 125
 126#define HT1LO_OFFSET            0xe0000000000UL
 127
 128/* PCI Configuration Space Base */
 129#define MCFG_EXT_PCICFG_BASE            0xefe00000000UL
 130
 131/* REG ACCESS*/
 132#define ls7a_readb(addr)        (*(volatile unsigned char  *)TO_UNCACHE(addr))
 133#define ls7a_readw(addr)        (*(volatile unsigned short *)TO_UNCACHE(addr))
 134#define ls7a_readl(addr)        (*(volatile unsigned int   *)TO_UNCACHE(addr))
 135#define ls7a_readq(addr)        (*(volatile unsigned long  *)TO_UNCACHE(addr))
 136#define ls7a_writeb(val, addr)  *(volatile unsigned char  *)TO_UNCACHE(addr) = (val)
 137#define ls7a_writew(val, addr)  *(volatile unsigned short *)TO_UNCACHE(addr) = (val)
 138#define ls7a_writel(val, addr)  *(volatile unsigned int   *)TO_UNCACHE(addr) = (val)
 139#define ls7a_writeq(val, addr)  *(volatile unsigned long  *)TO_UNCACHE(addr) = (val)
 140
 141#endif /* __ASM_LOONGSON_H */
 142