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
bcma_core_pci_power_save(struct bcma_bus * bus,bool up)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
bcma_core_pci_pcibios_map_irq(const struct pci_dev * dev)254 static inline int bcma_core_pci_pcibios_map_irq(const struct pci_dev *dev)
255 {
256 return -ENOTSUPP;
257 }
bcma_core_pci_plat_dev_init(struct pci_dev * dev)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_ */
265