include/linux/bcma/bcma_driver_pci.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef LINUX_BCMA_DRIVER_PCI_H_
   3 #define LINUX_BCMA_DRIVER_PCI_H_
   4
   5 #include <linux/types.h>
   6
   7 struct pci_dev;
   8
   9 /** PCI core registers. **/
  10 #define BCMA_CORE_PCI_CTL                       0x0000  /* PCI Control */
  11 #define  BCMA_CORE_PCI_CTL_RST_OE               0x00000001 /* PCI_RESET Output Enable */
  12 #define  BCMA_CORE_PCI_CTL_RST                  0x00000002 /* PCI_RESET driven out to pin */
  13 #define  BCMA_CORE_PCI_CTL_CLK_OE               0x00000004 /* Clock gate Output Enable */
  14 #define  BCMA_CORE_PCI_CTL_CLK                  0x00000008 /* Gate for clock driven out to pin */
  15 #define BCMA_CORE_PCI_ARBCTL                    0x0010  /* PCI Arbiter Control */
  16 #define  BCMA_CORE_PCI_ARBCTL_INTERN            0x00000001 /* Use internal arbiter */
  17 #define  BCMA_CORE_PCI_ARBCTL_EXTERN            0x00000002 /* Use external arbiter */
  18 #define  BCMA_CORE_PCI_ARBCTL_PARKID            0x00000006 /* Mask, selects which agent is parked on an idle bus */
  19 #define   BCMA_CORE_PCI_ARBCTL_PARKID_LAST      0x00000000 /* Last requestor */
  20 #define   BCMA_CORE_PCI_ARBCTL_PARKID_4710      0x00000002 /* 4710 */
  21 #define   BCMA_CORE_PCI_ARBCTL_PARKID_EXT0      0x00000004 /* External requestor 0 */
  22 #define   BCMA_CORE_PCI_ARBCTL_PARKID_EXT1      0x00000006 /* External requestor 1 */
  23 #define BCMA_CORE_PCI_ISTAT                     0x0020  /* Interrupt status */
  24 #define  BCMA_CORE_PCI_ISTAT_INTA               0x00000001 /* PCI INTA# */
  25 #define  BCMA_CORE_PCI_ISTAT_INTB               0x00000002 /* PCI INTB# */
  26 #define  BCMA_CORE_PCI_ISTAT_SERR               0x00000004 /* PCI SERR# (write to clear) */
  27 #define  BCMA_CORE_PCI_ISTAT_PERR               0x00000008 /* PCI PERR# (write to clear) */
  28 #define  BCMA_CORE_PCI_ISTAT_PME                0x00000010 /* PCI PME# */
  29 #define BCMA_CORE_PCI_IMASK                     0x0024  /* Interrupt mask */
  30 #define  BCMA_CORE_PCI_IMASK_INTA               0x00000001 /* PCI INTA# */
  31 #define  BCMA_CORE_PCI_IMASK_INTB               0x00000002 /* PCI INTB# */
  32 #define  BCMA_CORE_PCI_IMASK_SERR               0x00000004 /* PCI SERR# */
  33 #define  BCMA_CORE_PCI_IMASK_PERR               0x00000008 /* PCI PERR# */
  34 #define  BCMA_CORE_PCI_IMASK_PME                0x00000010 /* PCI PME# */
  35 #define BCMA_CORE_PCI_MBOX                      0x0028  /* Backplane to PCI Mailbox */
  36 #define  BCMA_CORE_PCI_MBOX_F0_0                0x00000100 /* PCI function 0, INT 0 */
  37 #define  BCMA_CORE_PCI_MBOX_F0_1                0x00000200 /* PCI function 0, INT 1 */
  38 #define  BCMA_CORE_PCI_MBOX_F1_0                0x00000400 /* PCI function 1, INT 0 */
  39 #define  BCMA_CORE_PCI_MBOX_F1_1                0x00000800 /* PCI function 1, INT 1 */
  40 #define  BCMA_CORE_PCI_MBOX_F2_0                0x00001000 /* PCI function 2, INT 0 */
  41 #define  BCMA_CORE_PCI_MBOX_F2_1                0x00002000 /* PCI function 2, INT 1 */
  42 #define  BCMA_CORE_PCI_MBOX_F3_0                0x00004000 /* PCI function 3, INT 0 */
  43 #define  BCMA_CORE_PCI_MBOX_F3_1                0x00008000 /* PCI function 3, INT 1 */
  44 #define BCMA_CORE_PCI_BCAST_ADDR                0x0050  /* Backplane Broadcast Address */
  45 #define  BCMA_CORE_PCI_BCAST_ADDR_MASK          0x000000FF
  46 #define BCMA_CORE_PCI_BCAST_DATA                0x0054  /* Backplane Broadcast Data */
  47 #define BCMA_CORE_PCI_GPIO_IN                   0x0060  /* rev >= 2 only */
  48 #define BCMA_CORE_PCI_GPIO_OUT                  0x0064  /* rev >= 2 only */
  49 #define BCMA_CORE_PCI_GPIO_ENABLE               0x0068  /* rev >= 2 only */
  50 #define BCMA_CORE_PCI_GPIO_CTL                  0x006C  /* rev >= 2 only */
  51 #define BCMA_CORE_PCI_SBTOPCI0                  0x0100  /* Backplane to PCI translation 0 (sbtopci0) */
  52 #define  BCMA_CORE_PCI_SBTOPCI0_MASK            0xFC000000
  53 #define BCMA_CORE_PCI_SBTOPCI1                  0x0104  /* Backplane to PCI translation 1 (sbtopci1) */
  54 #define  BCMA_CORE_PCI_SBTOPCI1_MASK            0xFC000000
  55 #define BCMA_CORE_PCI_SBTOPCI2                  0x0108  /* Backplane to PCI translation 2 (sbtopci2) */
  56 #define  BCMA_CORE_PCI_SBTOPCI2_MASK            0xC0000000
  57 #define BCMA_CORE_PCI_CONFIG_ADDR               0x0120  /* pcie config space access */
  58 #define BCMA_CORE_PCI_CONFIG_DATA               0x0124  /* pcie config space access */
  59 #define BCMA_CORE_PCI_MDIO_CONTROL              0x0128  /* controls the mdio access */
  60 #define  BCMA_CORE_PCI_MDIOCTL_DIVISOR_MASK     0x7f    /* clock to be used on MDIO */
  61 #define  BCMA_CORE_PCI_MDIOCTL_DIVISOR_VAL      0x2
  62 #define  BCMA_CORE_PCI_MDIOCTL_PREAM_EN         0x80    /* Enable preamble sequnce */
  63 #define  BCMA_CORE_PCI_MDIOCTL_ACCESS_DONE      0x100   /* Tranaction complete */
  64 #define BCMA_CORE_PCI_MDIO_DATA                 0x012c  /* Data to the mdio access */
  65 #define  BCMA_CORE_PCI_MDIODATA_MASK            0x0000ffff /* data 2 bytes */
  66 #define  BCMA_CORE_PCI_MDIODATA_TA              0x00020000 /* Turnaround */
  67 #define  BCMA_CORE_PCI_MDIODATA_REGADDR_SHF_OLD 18      /* Regaddr shift (rev < 10) */
  68 #define  BCMA_CORE_PCI_MDIODATA_REGADDR_MASK_OLD        0x003c0000 /* Regaddr Mask (rev < 10) */
  69 #define  BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF_OLD 22      /* Physmedia devaddr shift (rev < 10) */
  70 #define  BCMA_CORE_PCI_MDIODATA_DEVADDR_MASK_OLD        0x0fc00000 /* Physmedia devaddr Mask (rev < 10) */
  71 #define  BCMA_CORE_PCI_MDIODATA_REGADDR_SHF     18      /* Regaddr shift */
  72 #define  BCMA_CORE_PCI_MDIODATA_REGADDR_MASK    0x007c0000 /* Regaddr Mask */
  73 #define  BCMA_CORE_PCI_MDIODATA_DEVADDR_SHF     23      /* Physmedia devaddr shift */
  74 #define  BCMA_CORE_PCI_MDIODATA_DEVADDR_MASK    0x0f800000 /* Physmedia devaddr Mask */
  75 #define  BCMA_CORE_PCI_MDIODATA_WRITE           0x10000000 /* write Transaction */
  76 #define  BCMA_CORE_PCI_MDIODATA_READ            0x20000000 /* Read Transaction */
  77 #define  BCMA_CORE_PCI_MDIODATA_START           0x40000000 /* start of Transaction */
  78 #define  BCMA_CORE_PCI_MDIODATA_DEV_ADDR        0x0     /* dev address for serdes */
  79 #define  BCMA_CORE_PCI_MDIODATA_BLK_ADDR        0x1F    /* blk address for serdes */
  80 #define  BCMA_CORE_PCI_MDIODATA_DEV_PLL         0x1d    /* SERDES PLL Dev */
  81 #define  BCMA_CORE_PCI_MDIODATA_DEV_TX          0x1e    /* SERDES TX Dev */
  82 #define  BCMA_CORE_PCI_MDIODATA_DEV_RX          0x1f    /* SERDES RX Dev */
  83 #define BCMA_CORE_PCI_PCIEIND_ADDR              0x0130  /* indirect access to the internal register */
  84 #define BCMA_CORE_PCI_PCIEIND_DATA              0x0134  /* Data to/from the internal register */
  85 #define BCMA_CORE_PCI_CLKREQENCTRL              0x0138  /*  >= rev 6, Clkreq rdma control */
  86 #define BCMA_CORE_PCI_PCICFG0                   0x0400  /* PCI config space 0 (rev >= 8) */
  87 #define BCMA_CORE_PCI_PCICFG1                   0x0500  /* PCI config space 1 (rev >= 8) */
  88 #define BCMA_CORE_PCI_PCICFG2                   0x0600  /* PCI config space 2 (rev >= 8) */
  89 #define BCMA_CORE_PCI_PCICFG3                   0x0700  /* PCI config space 3 (rev >= 8) */
  90 #define BCMA_CORE_PCI_SPROM(wordoffset)         (0x0800 + ((wordoffset) * 2)) /* SPROM shadow area (72 bytes) */
  91 #define  BCMA_CORE_PCI_SPROM_PI_OFFSET          0       /* first word */
  92 #define   BCMA_CORE_PCI_SPROM_PI_MASK           0xf000  /* bit 15:12 */
  93 #define   BCMA_CORE_PCI_SPROM_PI_SHIFT          12      /* bit 15:12 */
  94 #define  BCMA_CORE_PCI_SPROM_MISC_CONFIG        5       /* word 5 */
  95 #define   BCMA_CORE_PCI_SPROM_L23READY_EXIT_NOPERST     0x8000  /* bit 15 */
  96 #define   BCMA_CORE_PCI_SPROM_CLKREQ_OFFSET_REV5        20      /* word 20 for srom rev <= 5 */
  97 #define   BCMA_CORE_PCI_SPROM_CLKREQ_ENB        0x0800  /* bit 11 */
  98
  99 /* SBtoPCIx */
 100 #define BCMA_CORE_PCI_SBTOPCI_MEM               0x00000000
 101 #define BCMA_CORE_PCI_SBTOPCI_IO                0x00000001
 102 #define BCMA_CORE_PCI_SBTOPCI_CFG0              0x00000002
 103 #define BCMA_CORE_PCI_SBTOPCI_CFG1              0x00000003
 104 #define BCMA_CORE_PCI_SBTOPCI_PREF              0x00000004 /* Prefetch enable */
 105 #define BCMA_CORE_PCI_SBTOPCI_BURST             0x00000008 /* Burst enable */
 106 #define BCMA_CORE_PCI_SBTOPCI_MRM               0x00000020 /* Memory Read Multiple */
 107 #define BCMA_CORE_PCI_SBTOPCI_RC                0x00000030 /* Read Command mask (rev >= 11) */
 108 #define  BCMA_CORE_PCI_SBTOPCI_RC_READ          0x00000000 /* Memory read */
 109 #define  BCMA_CORE_PCI_SBTOPCI_RC_READL         0x00000010 /* Memory read line */
 110 #define  BCMA_CORE_PCI_SBTOPCI_RC_READM         0x00000020 /* Memory read multiple */
 111
 112 /* PCIE protocol PHY diagnostic registers */
 113 #define BCMA_CORE_PCI_PLP_MODEREG               0x200   /* Mode */
 114 #define BCMA_CORE_PCI_PLP_STATUSREG             0x204   /* Status */
 115 #define  BCMA_CORE_PCI_PLP_POLARITYINV_STAT     0x10    /* Status reg PCIE_PLP_STATUSREG */
 116 #define BCMA_CORE_PCI_PLP_LTSSMCTRLREG          0x208   /* LTSSM control */
 117 #define BCMA_CORE_PCI_PLP_LTLINKNUMREG          0x20c   /* Link Training Link number */
 118 #define BCMA_CORE_PCI_PLP_LTLANENUMREG          0x210   /* Link Training Lane number */
 119 #define BCMA_CORE_PCI_PLP_LTNFTSREG             0x214   /* Link Training N_FTS */
 120 #define BCMA_CORE_PCI_PLP_ATTNREG               0x218   /* Attention */
 121 #define BCMA_CORE_PCI_PLP_ATTNMASKREG           0x21C   /* Attention Mask */
 122 #define BCMA_CORE_PCI_PLP_RXERRCTR              0x220   /* Rx Error */
 123 #define BCMA_CORE_PCI_PLP_RXFRMERRCTR           0x224   /* Rx Framing Error */
 124 #define BCMA_CORE_PCI_PLP_RXERRTHRESHREG        0x228   /* Rx Error threshold */
 125 #define BCMA_CORE_PCI_PLP_TESTCTRLREG           0x22C   /* Test Control reg */
 126 #define BCMA_CORE_PCI_PLP_SERDESCTRLOVRDREG     0x230   /* SERDES Control Override */
 127 #define BCMA_CORE_PCI_PLP_TIMINGOVRDREG         0x234   /* Timing param override */
 128 #define BCMA_CORE_PCI_PLP_RXTXSMDIAGREG         0x238   /* RXTX State Machine Diag */
 129 #define BCMA_CORE_PCI_PLP_LTSSMDIAGREG          0x23C   /* LTSSM State Machine Diag */
 130
 131 /* PCIE protocol DLLP diagnostic registers */
 132 #define BCMA_CORE_PCI_DLLP_LCREG                0x100   /* Link Control */
 133 #define BCMA_CORE_PCI_DLLP_LSREG                0x104   /* Link Status */
 134 #define BCMA_CORE_PCI_DLLP_LAREG                0x108   /* Link Attention */
 135 #define  BCMA_CORE_PCI_DLLP_LSREG_LINKUP        (1 << 16)
 136 #define BCMA_CORE_PCI_DLLP_LAMASKREG            0x10C   /* Link Attention Mask */
 137 #define BCMA_CORE_PCI_DLLP_NEXTTXSEQNUMREG      0x110   /* Next Tx Seq Num */
 138 #define BCMA_CORE_PCI_DLLP_ACKEDTXSEQNUMREG     0x114   /* Acked Tx Seq Num */
 139 #define BCMA_CORE_PCI_DLLP_PURGEDTXSEQNUMREG    0x118   /* Purged Tx Seq Num */
 140 #define BCMA_CORE_PCI_DLLP_RXSEQNUMREG          0x11C   /* Rx Sequence Number */
 141 #define BCMA_CORE_PCI_DLLP_LRREG                0x120   /* Link Replay */
 142 #define BCMA_CORE_PCI_DLLP_LACKTOREG            0x124   /* Link Ack Timeout */
 143 #define BCMA_CORE_PCI_DLLP_PMTHRESHREG          0x128   /* Power Management Threshold */
 144 #define  BCMA_CORE_PCI_ASPMTIMER_EXTEND         0x01000000 /* > rev7: enable extend ASPM timer */
 145 #define BCMA_CORE_PCI_DLLP_RTRYWPREG            0x12C   /* Retry buffer write ptr */
 146 #define BCMA_CORE_PCI_DLLP_RTRYRPREG            0x130   /* Retry buffer Read ptr */
 147 #define BCMA_CORE_PCI_DLLP_RTRYPPREG            0x134   /* Retry buffer Purged ptr */
 148 #define BCMA_CORE_PCI_DLLP_RTRRWREG             0x138   /* Retry buffer Read/Write */
 149 #define BCMA_CORE_PCI_DLLP_ECTHRESHREG          0x13C   /* Error Count Threshold */
 150 #define BCMA_CORE_PCI_DLLP_TLPERRCTRREG         0x140   /* TLP Error Counter */
 151 #define BCMA_CORE_PCI_DLLP_ERRCTRREG            0x144   /* Error Counter */
 152 #define BCMA_CORE_PCI_DLLP_NAKRXCTRREG          0x148   /* NAK Received Counter */
 153 #define BCMA_CORE_PCI_DLLP_TESTREG              0x14C   /* Test */
 154 #define BCMA_CORE_PCI_DLLP_PKTBIST              0x150   /* Packet BIST */
 155 #define BCMA_CORE_PCI_DLLP_PCIE11               0x154   /* DLLP PCIE 1.1 reg */
 156
 157 /* SERDES RX registers */
 158 #define BCMA_CORE_PCI_SERDES_RX_CTRL            1       /* Rx cntrl */
 159 #define  BCMA_CORE_PCI_SERDES_RX_CTRL_FORCE     0x80    /* rxpolarity_force */
 160 #define  BCMA_CORE_PCI_SERDES_RX_CTRL_POLARITY  0x40    /* rxpolarity_value */
 161 #define BCMA_CORE_PCI_SERDES_RX_TIMER1          2       /* Rx Timer1 */
 162 #define BCMA_CORE_PCI_SERDES_RX_CDR             6       /* CDR */
 163 #define BCMA_CORE_PCI_SERDES_RX_CDRBW           7       /* CDR BW */
 164
 165 /* SERDES PLL registers */
 166 #define BCMA_CORE_PCI_SERDES_PLL_CTRL           1       /* PLL control reg */
 167 #define BCMA_CORE_PCI_PLL_CTRL_FREQDET_EN       0x4000  /* bit 14 is FREQDET on */
 168
 169 /* PCIcore specific boardflags */
 170 #define BCMA_CORE_PCI_BFL_NOPCI                 0x00000400 /* Board leaves PCI floating */
 171
 172 /* PCIE Config space accessing MACROS */
 173 #define BCMA_CORE_PCI_CFG_BUS_SHIFT             24      /* Bus shift */
 174 #define BCMA_CORE_PCI_CFG_SLOT_SHIFT            19      /* Slot/Device shift */
 175 #define BCMA_CORE_PCI_CFG_FUN_SHIFT             16      /* Function shift */
 176 #define BCMA_CORE_PCI_CFG_OFF_SHIFT             0       /* Register shift */
 177
 178 #define BCMA_CORE_PCI_CFG_BUS_MASK              0xff    /* Bus mask */
 179 #define BCMA_CORE_PCI_CFG_SLOT_MASK             0x1f    /* Slot/Device mask */
 180 #define BCMA_CORE_PCI_CFG_FUN_MASK              7       /* Function mask */
 181 #define BCMA_CORE_PCI_CFG_OFF_MASK              0xfff   /* Register mask */
 182
 183 #define BCMA_CORE_PCI_CFG_DEVCTRL               0xd8
 184
 185 #define BCMA_CORE_PCI_
 186
 187 /* MDIO devices (SERDES modules) */
 188 #define BCMA_CORE_PCI_MDIO_IEEE0                0x000
 189 #define BCMA_CORE_PCI_MDIO_IEEE1                0x001
 190 #define BCMA_CORE_PCI_MDIO_BLK0                 0x800
 191 #define BCMA_CORE_PCI_MDIO_BLK1                 0x801
 192 #define  BCMA_CORE_PCI_MDIO_BLK1_MGMT0          0x16
 193 #define  BCMA_CORE_PCI_MDIO_BLK1_MGMT1          0x17
 194 #define  BCMA_CORE_PCI_MDIO_BLK1_MGMT2          0x18
 195 #define  BCMA_CORE_PCI_MDIO_BLK1_MGMT3          0x19
 196 #define  BCMA_CORE_PCI_MDIO_BLK1_MGMT4          0x1A
 197 #define BCMA_CORE_PCI_MDIO_BLK2                 0x802
 198 #define BCMA_CORE_PCI_MDIO_BLK3                 0x803
 199 #define BCMA_CORE_PCI_MDIO_BLK4                 0x804
 200 #define BCMA_CORE_PCI_MDIO_TXPLL                0x808   /* TXPLL register block idx */
 201 #define BCMA_CORE_PCI_MDIO_TXCTRL0              0x820
 202 #define BCMA_CORE_PCI_MDIO_SERDESID             0x831
 203 #define BCMA_CORE_PCI_MDIO_RXCTRL0              0x840
 204
 205 /* PCIE Root Capability Register bits (Host mode only) */
 206 #define BCMA_CORE_PCI_RC_CRS_VISIBILITY         0x0001
 207
 208 struct bcma_drv_pci;
 209 struct bcma_bus;
 210
 211 #ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
 212 struct bcma_drv_pci_host {
 213         struct bcma_drv_pci *pdev;
 214
 215         u32 host_cfg_addr;
 216         spinlock_t cfgspace_lock;
 217
 218         struct pci_controller pci_controller;
 219         struct pci_ops pci_ops;
 220         struct resource mem_resource;
 221         struct resource io_resource;
 222 };
 223 #endif
 224
 225 struct bcma_drv_pci {
 226         struct bcma_device *core;
 227         u8 early_setup_done:1;
 228         u8 setup_done:1;
 229         u8 hostmode:1;
 230
 231 #ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
 232         struct bcma_drv_pci_host *host_controller;
 233 #endif
 234 };
 235
 236 /* Register access */
 237 #define pcicore_read16(pc, offset)              bcma_read16((pc)->core, offset)
 238 #define pcicore_read32(pc, offset)              bcma_read32((pc)->core, offset)
 239 #define pcicore_write16(pc, offset, val)        bcma_write16((pc)->core, offset, val)
 240 #define pcicore_write32(pc, offset, val)        bcma_write32((pc)->core, offset, val)
 241
 242 #ifdef CONFIG_BCMA_DRIVER_PCI
 243 extern void bcma_core_pci_power_save(struct bcma_bus *bus, bool up);
 244 #else
 245 static inline void bcma_core_pci_power_save(struct bcma_bus *bus, bool up)
 246 {
 247 }
 248 #endif
 249
 250 #ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
 251 extern int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev);
 252 extern int bcma_core_pci_plat_dev_init(struct pci_dev *dev);
 253 #else
 254 static inline int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev)
 255 {
 256         return -ENOTSUPP;
 257 }
 258 static inline int bcma_core_pci_plat_dev_init(struct pci_dev *dev)
 259 {
 260         return -ENOTSUPP;
 261 }
 262 #endif
 263
 264 #endif /* LINUX_BCMA_DRIVER_PCI_H_ */