LXR linux/arch/sh/drivers/pci/pci-sh4.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __PCI_SH4_H
   3#define __PCI_SH4_H
   4
   5#if defined(CONFIG_CPU_SUBTYPE_SH7780) || \
   6    defined(CONFIG_CPU_SUBTYPE_SH7785) || \
   7    defined(CONFIG_CPU_SUBTYPE_SH7763)
   8#include "pci-sh7780.h"
   9#else
  10#include "pci-sh7751.h"
  11#endif
  12
  13#include <asm/io.h>
  14
  15#define SH4_PCICR               0x100           /* PCI Control Register */
  16  #define SH4_PCICR_PREFIX        0xA5000000    /* CR prefix for write */
  17  #define SH4_PCICR_FTO           0x00000400    /* TRDY/IRDY Enable */
  18  #define SH4_PCICR_TRSB          0x00000200    /* Target Read Single */
  19  #define SH4_PCICR_BSWP          0x00000100    /* Target Byte Swap */
  20  #define SH4_PCICR_PLUP          0x00000080    /* Enable PCI Pullup */
  21  #define SH4_PCICR_ARBM          0x00000040    /* PCI Arbitration Mode */
  22  #define SH4_PCICR_MD            0x00000030    /* MD9 and MD10 status */
  23  #define SH4_PCICR_SERR          0x00000008    /* SERR output assert */
  24  #define SH4_PCICR_INTA          0x00000004    /* INTA output assert */
  25  #define SH4_PCICR_PRST          0x00000002    /* PCI Reset Assert */
  26  #define SH4_PCICR_CFIN          0x00000001    /* Central Fun. Init Done */
  27#define SH4_PCILSR0             0x104           /* PCI Local Space Register0 */
  28#define SH4_PCILSR1             0x108           /* PCI Local Space Register1 */
  29#define SH4_PCILAR0             0x10C           /* PCI Local Addr Register1 */
  30#define SH4_PCILAR1             0x110           /* PCI Local Addr Register1 */
  31#define SH4_PCIINT              0x114           /* PCI Interrupt Register */
  32  #define SH4_PCIINT_MLCK         0x00008000    /* Master Lock Error */
  33  #define SH4_PCIINT_TABT         0x00004000    /* Target Abort Error */
  34  #define SH4_PCIINT_TRET         0x00000200    /* Target Retry Error */
  35  #define SH4_PCIINT_MFDE         0x00000100    /* Master Func. Disable Error */
  36  #define SH4_PCIINT_PRTY         0x00000080    /* Address Parity Error */
  37  #define SH4_PCIINT_SERR         0x00000040    /* SERR Detection Error */
  38  #define SH4_PCIINT_TWDP         0x00000020    /* Tgt. Write Parity Error */
  39  #define SH4_PCIINT_TRDP         0x00000010    /* Tgt. Read Parity Err Det. */
  40  #define SH4_PCIINT_MTABT        0x00000008    /* Master-Tgt. Abort Error */
  41  #define SH4_PCIINT_MMABT        0x00000004    /* Master-Master Abort Error */
  42  #define SH4_PCIINT_MWPD         0x00000002    /* Master Write PERR Detect */
  43  #define SH4_PCIINT_MRPD         0x00000001    /* Master Read PERR Detect */
  44#define SH4_PCIINTM             0x118           /* PCI Interrupt Mask */
  45  #define SH4_PCIINTM_TTADIM      BIT(14)       /* Target-target abort interrupt */
  46  #define SH4_PCIINTM_TMTOIM      BIT(9)        /* Target retry timeout */
  47  #define SH4_PCIINTM_MDEIM       BIT(8)        /* Master function disable error */
  48  #define SH4_PCIINTM_APEDIM      BIT(7)        /* Address parity error detection */
  49  #define SH4_PCIINTM_SDIM        BIT(6)        /* SERR detection */
  50  #define SH4_PCIINTM_DPEITWM     BIT(5)        /* Data parity error for target write */
  51  #define SH4_PCIINTM_PEDITRM     BIT(4)        /* PERR detection for target read */
  52  #define SH4_PCIINTM_TADIMM      BIT(3)        /* Target abort for master */
  53  #define SH4_PCIINTM_MADIMM      BIT(2)        /* Master abort for master */
  54  #define SH4_PCIINTM_MWPDIM      BIT(1)        /* Master write data parity error */
  55  #define SH4_PCIINTM_MRDPEIM     BIT(0)        /* Master read data parity error */
  56#define SH4_PCIALR              0x11C           /* Error Address Register */
  57#define SH4_PCICLR              0x120           /* Error Command/Data */
  58  #define SH4_PCICLR_MPIO         0x80000000
  59  #define SH4_PCICLR_MDMA0        0x40000000    /* DMA0 Transfer Error */
  60  #define SH4_PCICLR_MDMA1        0x20000000    /* DMA1 Transfer Error */
  61  #define SH4_PCICLR_MDMA2        0x10000000    /* DMA2 Transfer Error */
  62  #define SH4_PCICLR_MDMA3        0x08000000    /* DMA3 Transfer Error */
  63  #define SH4_PCICLR_TGT          0x04000000    /* Target Transfer Error */
  64  #define SH4_PCICLR_CMDL         0x0000000F    /* PCI Command at Error */
  65#define SH4_PCIAINT             0x130           /* Arbiter Interrupt Register */
  66  #define SH4_PCIAINT_MBKN        0x00002000    /* Master Broken Interrupt */
  67  #define SH4_PCIAINT_TBTO        0x00001000    /* Target Bus Time Out */
  68  #define SH4_PCIAINT_MBTO        0x00000800    /* Master Bus Time Out */
  69  #define SH4_PCIAINT_TABT        0x00000008    /* Target Abort */
  70  #define SH4_PCIAINT_MABT        0x00000004    /* Master Abort */
  71  #define SH4_PCIAINT_RDPE        0x00000002    /* Read Data Parity Error */
  72  #define SH4_PCIAINT_WDPE        0x00000001    /* Write Data Parity Error */
  73#define SH4_PCIAINTM            0x134           /* Arbiter Int. Mask Register */
  74#define SH4_PCIBMLR             0x138           /* Error Bus Master Register */
  75  #define SH4_PCIBMLR_REQ4        0x00000010    /* REQ4 bus master at error */
  76  #define SH4_PCIBMLR_REQ3        0x00000008    /* REQ3 bus master at error */
  77  #define SH4_PCIBMLR_REQ2        0x00000004    /* REQ2 bus master at error */
  78  #define SH4_PCIBMLR_REQ1        0x00000002    /* REQ1 bus master at error */
  79  #define SH4_PCIBMLR_REQ0        0x00000001    /* REQ0 bus master at error */
  80#define SH4_PCIDMABT            0x140           /* DMA Transfer Arb. Register */
  81  #define SH4_PCIDMABT_RRBN       0x00000001    /* DMA Arbitor Round-Robin */
  82#define SH4_PCIDPA0             0x180           /* DMA0 Transfer Addr. */
  83#define SH4_PCIDLA0             0x184           /* DMA0 Local Addr. */
  84#define SH4_PCIDTC0             0x188           /* DMA0 Transfer Cnt. */
  85#define SH4_PCIDCR0             0x18C           /* DMA0 Control Register */
  86  #define SH4_PCIDCR_ALGN         0x00000600    /* DMA Alignment Mode */
  87  #define SH4_PCIDCR_MAST         0x00000100    /* DMA Termination Type */
  88  #define SH4_PCIDCR_INTM         0x00000080    /* DMA Interrupt Done Mask*/
  89  #define SH4_PCIDCR_INTS         0x00000040    /* DMA Interrupt Done Status */
  90  #define SH4_PCIDCR_LHLD         0x00000020    /* Local Address Control */
  91  #define SH4_PCIDCR_PHLD         0x00000010    /* PCI Address Control*/
  92  #define SH4_PCIDCR_IOSEL        0x00000008    /* PCI Address Space Type */
  93  #define SH4_PCIDCR_DIR          0x00000004    /* DMA Transfer Direction */
  94  #define SH4_PCIDCR_STOP         0x00000002    /* Force DMA Stop */
  95  #define SH4_PCIDCR_STRT         0x00000001    /* DMA Start */
  96#define SH4_PCIDPA1             0x190           /* DMA1 Transfer Addr. */
  97#define SH4_PCIDLA1             0x194           /* DMA1 Local Addr. */
  98#define SH4_PCIDTC1             0x198           /* DMA1 Transfer Cnt. */
  99#define SH4_PCIDCR1             0x19C           /* DMA1 Control Register */
 100#define SH4_PCIDPA2             0x1A0           /* DMA2 Transfer Addr. */
 101#define SH4_PCIDLA2             0x1A4           /* DMA2 Local Addr. */
 102#define SH4_PCIDTC2             0x1A8           /* DMA2 Transfer Cnt. */
 103#define SH4_PCIDCR2             0x1AC           /* DMA2 Control Register */
 104#define SH4_PCIDPA3             0x1B0           /* DMA3 Transfer Addr. */
 105#define SH4_PCIDLA3             0x1B4           /* DMA3 Local Addr. */
 106#define SH4_PCIDTC3             0x1B8           /* DMA3 Transfer Cnt. */
 107#define SH4_PCIDCR3             0x1BC           /* DMA3 Control Register */
 108#define SH4_PCIPAR              0x1C0           /* PIO Address Register */
 109  #define SH4_PCIPAR_CFGEN        0x80000000    /* Configuration Enable */
 110  #define SH4_PCIPAR_BUSNO        0x00FF0000    /* Config. Bus Number */
 111  #define SH4_PCIPAR_DEVNO        0x0000FF00    /* Config. Device Number */
 112  #define SH4_PCIPAR_REGAD        0x000000FC    /* Register Address Number */
 113#define SH4_PCIMBR              0x1C4           /* Memory Base Address */
 114  #define SH4_PCIMBR_MASK         0xFF000000    /* Memory Space Mask */
 115  #define SH4_PCIMBR_LOCK         0x00000001    /* Lock Memory Space */
 116#define SH4_PCIIOBR             0x1C8           /* I/O Base Address Register */
 117  #define SH4_PCIIOBR_MASK        0xFFFC0000    /* IO Space Mask */
 118  #define SH4_PCIIOBR_LOCK        0x00000001    /* Lock IO Space */
 119#define SH4_PCIPINT             0x1CC           /* Power Mgmnt Int. Register */
 120  #define SH4_PCIPINT_D3          0x00000002    /* D3 Pwr Mgmt. Interrupt */
 121  #define SH4_PCIPINT_D0          0x00000001    /* D0 Pwr Mgmt. Interrupt */
 122#define SH4_PCIPINTM            0x1D0           /* Power Mgmnt Mask Register */
 123#define SH4_PCICLKR             0x1D4           /* Clock Ctrl. Register */
 124  #define SH4_PCICLKR_PCSTP       0x00000002    /* PCI Clock Stop */
 125  #define SH4_PCICLKR_BCSTP       0x00000001    /* BCLK Clock Stop */
 126/* For definitions of BCR, MCR see ... */
 127#define SH4_PCIBCR1             0x1E0           /* Memory BCR1 Register */
 128  #define SH4_PCIMBR0           SH4_PCIBCR1
 129#define SH4_PCIBCR2             0x1E4           /* Memory BCR2 Register */
 130  #define SH4_PCIMBMR0          SH4_PCIBCR2
 131#define SH4_PCIWCR1             0x1E8           /* Wait Control 1 Register */
 132#define SH4_PCIWCR2             0x1EC           /* Wait Control 2 Register */
 133#define SH4_PCIWCR3             0x1F0           /* Wait Control 3 Register */
 134  #define SH4_PCIMBR2           SH4_PCIWCR3
 135#define SH4_PCIMCR              0x1F4           /* Memory Control Register */
 136#define SH4_PCIBCR3             0x1f8           /* Memory BCR3 Register */
 137#define SH4_PCIPCTR             0x200           /* Port Control Register */
 138  #define SH4_PCIPCTR_P2EN        0x000400000   /* Port 2 Enable */
 139  #define SH4_PCIPCTR_P1EN        0x000200000   /* Port 1 Enable */
 140  #define SH4_PCIPCTR_P0EN        0x000100000   /* Port 0 Enable */
 141  #define SH4_PCIPCTR_P2UP        0x000000020   /* Port2 Pull Up Enable */
 142  #define SH4_PCIPCTR_P2IO        0x000000010   /* Port2 Output Enable */
 143  #define SH4_PCIPCTR_P1UP        0x000000008   /* Port1 Pull Up Enable */
 144  #define SH4_PCIPCTR_P1IO        0x000000004   /* Port1 Output Enable */
 145  #define SH4_PCIPCTR_P0UP        0x000000002   /* Port0 Pull Up Enable */
 146  #define SH4_PCIPCTR_P0IO        0x000000001   /* Port0 Output Enable */
 147#define SH4_PCIPDTR             0x204           /* Port Data Register */
 148  #define SH4_PCIPDTR_PB5         0x000000020   /* Port 5 Enable */
 149  #define SH4_PCIPDTR_PB4         0x000000010   /* Port 4 Enable */
 150  #define SH4_PCIPDTR_PB3         0x000000008   /* Port 3 Enable */
 151  #define SH4_PCIPDTR_PB2         0x000000004   /* Port 2 Enable */
 152  #define SH4_PCIPDTR_PB1         0x000000002   /* Port 1 Enable */
 153  #define SH4_PCIPDTR_PB0         0x000000001   /* Port 0 Enable */
 154#define SH4_PCIPDR              0x220           /* Port IO Data Register */
 155
 156/* arch/sh/kernel/drivers/pci/ops-sh4.c */
 157extern struct pci_ops sh4_pci_ops;
 158int pci_fixup_pcic(struct pci_channel *chan);
 159
 160struct sh4_pci_address_space {
 161        unsigned long base;
 162        unsigned long size;
 163};
 164
 165struct sh4_pci_address_map {
 166        struct sh4_pci_address_space window0;
 167        struct sh4_pci_address_space window1;
 168};
 169
 170static inline void pci_write_reg(struct pci_channel *chan,
 171                                 unsigned long val, unsigned long reg)
 172{
 173        __raw_writel(val, chan->reg_base + reg);
 174}
 175
 176static inline unsigned long pci_read_reg(struct pci_channel *chan,
 177                                         unsigned long reg)
 178{
 179        return __raw_readl(chan->reg_base + reg);
 180}
 181
 182#endif /* __PCI_SH4_H */
 183