1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) Marvell International Ltd. and its affiliates
9 #include "high_speed_env_spec.h"
12 #define MPP_SAMPLE_AT_RESET(id) (0xe4200 + (id * 4))
14 /* PCI Express Control and Status Registers */
15 #define MAX_PEX_BUSSES 256
17 #define MISC_REGS_OFFSET 0x18200
18 #define MV_MISC_REGS_BASE MISC_REGS_OFFSET
19 #define SOC_CTRL_REG (MV_MISC_REGS_BASE + 0x4)
21 #define PEX_IF_REGS_OFFSET(if) ((if) > 0 ? \
22 (0x40000 + ((if) - 1) * 0x4000) : \
24 #define PEX_IF_REGS_BASE(if) (PEX_IF_REGS_OFFSET(if))
25 #define PEX_CAPABILITIES_REG(if) ((PEX_IF_REGS_BASE(if)) + 0x60)
26 #define PEX_LINK_CTRL_STATUS2_REG(if) ((PEX_IF_REGS_BASE(if)) + 0x90)
27 #define PEX_CTRL_REG(if) ((PEX_IF_REGS_BASE(if)) + 0x1a00)
28 #define PEX_STATUS_REG(if) ((PEX_IF_REGS_BASE(if)) + 0x1a04)
29 #define PEX_DBG_STATUS_REG(if) ((PEX_IF_REGS_BASE(if)) + 0x1a64)
30 #define PEX_LINK_CAPABILITY_REG 0x6c
31 #define PEX_LINK_CTRL_STAT_REG 0x70
32 #define PXSR_PEX_DEV_NUM_OFFS 16 /* Device Number Indication */
33 #define PXSR_PEX_DEV_NUM_MASK (0x1f << PXSR_PEX_DEV_NUM_OFFS)
34 #define PXSR_PEX_BUS_NUM_OFFS 8 /* Bus Number Indication */
35 #define PXSR_PEX_BUS_NUM_MASK (0xff << PXSR_PEX_BUS_NUM_OFFS)
37 /* PEX_CAPABILITIES_REG fields */
38 #define PCIE0_ENABLE_OFFS 0
39 #define PCIE0_ENABLE_MASK (0x1 << PCIE0_ENABLE_OFFS)
40 #define PCIE1_ENABLE_OFFS 1
41 #define PCIE1_ENABLE_MASK (0x1 << PCIE1_ENABLE_OFFS)
42 #define PCIE2_ENABLE_OFFS 2
43 #define PCIE2_ENABLE_MASK (0x1 << PCIE2_ENABLE_OFFS)
44 #define PCIE3_ENABLE_OFFS 3
45 #define PCIE4_ENABLE_MASK (0x1 << PCIE3_ENABLE_OFFS)
47 /* Controller revision info */
48 #define PEX_DEVICE_AND_VENDOR_ID 0x000
49 #define PEX_CFG_DIRECT_ACCESS(if, reg) (PEX_IF_REGS_BASE(if) + (reg))
51 /* PCI Express Configuration Address Register */
52 #define PXCAR_REG_NUM_OFFS 2
53 #define PXCAR_REG_NUM_MAX 0x3f
54 #define PXCAR_REG_NUM_MASK (PXCAR_REG_NUM_MAX << \
56 #define PXCAR_FUNC_NUM_OFFS 8
57 #define PXCAR_FUNC_NUM_MAX 0x7
58 #define PXCAR_FUNC_NUM_MASK (PXCAR_FUNC_NUM_MAX << \
60 #define PXCAR_DEVICE_NUM_OFFS 11
61 #define PXCAR_DEVICE_NUM_MAX 0x1f
62 #define PXCAR_DEVICE_NUM_MASK (PXCAR_DEVICE_NUM_MAX << \
63 PXCAR_DEVICE_NUM_OFFS)
64 #define PXCAR_BUS_NUM_OFFS 16
65 #define PXCAR_BUS_NUM_MAX 0xff
66 #define PXCAR_BUS_NUM_MASK (PXCAR_BUS_NUM_MAX << \
68 #define PXCAR_EXT_REG_NUM_OFFS 24
69 #define PXCAR_EXT_REG_NUM_MAX 0xf
71 #define PEX_CFG_ADDR_REG(if) ((PEX_IF_REGS_BASE(if)) + 0x18f8)
72 #define PEX_CFG_DATA_REG(if) ((PEX_IF_REGS_BASE(if)) + 0x18fc)
74 #define PXCAR_REAL_EXT_REG_NUM_OFFS 8
75 #define PXCAR_REAL_EXT_REG_NUM_MASK (0xf << PXCAR_REAL_EXT_REG_NUM_OFFS)
77 #define PXCAR_CONFIG_EN BIT(31)
78 #define PEX_STATUS_AND_COMMAND 0x004
79 #define PXSAC_MABORT BIT(29) /* Recieved Master Abort */
81 int hws_pex_config(const struct serdes_map *serdes_map, u8 count);
82 int pex_local_bus_num_set(u32 pex_if, u32 bus_num);
83 int pex_local_dev_num_set(u32 pex_if, u32 dev_num);
84 u32 pex_config_read(u32 pex_if, u32 bus, u32 dev, u32 func, u32 reg_off);
86 void board_pex_config(void);