| David Daney | 1eefee9 | 2016-03-11 09:53:10 -0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 2009-2016 Cavium, Inc. |
| 7 | */ |
| 8 | |
| 9 | enum cavium_mdiobus_mode { |
| 10 | UNINIT = 0, |
| 11 | C22, |
| 12 | C45 |
| 13 | }; |
| 14 | |
| 15 | #define SMI_CMD 0x0 |
| 16 | #define SMI_WR_DAT 0x8 |
| 17 | #define SMI_RD_DAT 0x10 |
| 18 | #define SMI_CLK 0x18 |
| 19 | #define SMI_EN 0x20 |
| 20 | |
| 21 | #ifdef __BIG_ENDIAN_BITFIELD |
| 22 | #define OCT_MDIO_BITFIELD_FIELD(field, more) \ |
| 23 | field; \ |
| 24 | more |
| 25 | |
| 26 | #else |
| 27 | #define OCT_MDIO_BITFIELD_FIELD(field, more) \ |
| 28 | more \ |
| 29 | field; |
| 30 | |
| 31 | #endif |
| 32 | |
| 33 | union cvmx_smix_clk { |
| 34 | u64 u64; |
| 35 | struct cvmx_smix_clk_s { |
| 36 | OCT_MDIO_BITFIELD_FIELD(u64 reserved_25_63:39, |
| 37 | OCT_MDIO_BITFIELD_FIELD(u64 mode:1, |
| 38 | OCT_MDIO_BITFIELD_FIELD(u64 reserved_21_23:3, |
| 39 | OCT_MDIO_BITFIELD_FIELD(u64 sample_hi:5, |
| 40 | OCT_MDIO_BITFIELD_FIELD(u64 sample_mode:1, |
| 41 | OCT_MDIO_BITFIELD_FIELD(u64 reserved_14_14:1, |
| 42 | OCT_MDIO_BITFIELD_FIELD(u64 clk_idle:1, |
| 43 | OCT_MDIO_BITFIELD_FIELD(u64 preamble:1, |
| 44 | OCT_MDIO_BITFIELD_FIELD(u64 sample:4, |
| 45 | OCT_MDIO_BITFIELD_FIELD(u64 phase:8, |
| 46 | ;)))))))))) |
| 47 | } s; |
| 48 | }; |
| 49 | |
| 50 | union cvmx_smix_cmd { |
| 51 | u64 u64; |
| 52 | struct cvmx_smix_cmd_s { |
| 53 | OCT_MDIO_BITFIELD_FIELD(u64 reserved_18_63:46, |
| 54 | OCT_MDIO_BITFIELD_FIELD(u64 phy_op:2, |
| 55 | OCT_MDIO_BITFIELD_FIELD(u64 reserved_13_15:3, |
| 56 | OCT_MDIO_BITFIELD_FIELD(u64 phy_adr:5, |
| 57 | OCT_MDIO_BITFIELD_FIELD(u64 reserved_5_7:3, |
| 58 | OCT_MDIO_BITFIELD_FIELD(u64 reg_adr:5, |
| 59 | ;)))))) |
| 60 | } s; |
| 61 | }; |
| 62 | |
| 63 | union cvmx_smix_en { |
| 64 | u64 u64; |
| 65 | struct cvmx_smix_en_s { |
| 66 | OCT_MDIO_BITFIELD_FIELD(u64 reserved_1_63:63, |
| 67 | OCT_MDIO_BITFIELD_FIELD(u64 en:1, |
| 68 | ;)) |
| 69 | } s; |
| 70 | }; |
| 71 | |
| 72 | union cvmx_smix_rd_dat { |
| 73 | u64 u64; |
| 74 | struct cvmx_smix_rd_dat_s { |
| 75 | OCT_MDIO_BITFIELD_FIELD(u64 reserved_18_63:46, |
| 76 | OCT_MDIO_BITFIELD_FIELD(u64 pending:1, |
| 77 | OCT_MDIO_BITFIELD_FIELD(u64 val:1, |
| 78 | OCT_MDIO_BITFIELD_FIELD(u64 dat:16, |
| 79 | ;)))) |
| 80 | } s; |
| 81 | }; |
| 82 | |
| 83 | union cvmx_smix_wr_dat { |
| 84 | u64 u64; |
| 85 | struct cvmx_smix_wr_dat_s { |
| 86 | OCT_MDIO_BITFIELD_FIELD(u64 reserved_18_63:46, |
| 87 | OCT_MDIO_BITFIELD_FIELD(u64 pending:1, |
| 88 | OCT_MDIO_BITFIELD_FIELD(u64 val:1, |
| 89 | OCT_MDIO_BITFIELD_FIELD(u64 dat:16, |
| 90 | ;)))) |
| 91 | } s; |
| 92 | }; |
| 93 | |
| 94 | struct cavium_mdiobus { |
| 95 | struct mii_bus *mii_bus; |
| 96 | u64 register_base; |
| 97 | enum cavium_mdiobus_mode mode; |
| 98 | }; |
| 99 | |
| 100 | #ifdef CONFIG_CAVIUM_OCTEON_SOC |
| 101 | |
| 102 | #include <asm/octeon/octeon.h> |
| 103 | |
| 104 | static inline void oct_mdio_writeq(u64 val, u64 addr) |
| 105 | { |
| 106 | cvmx_write_csr(addr, val); |
| 107 | } |
| 108 | |
| 109 | static inline u64 oct_mdio_readq(u64 addr) |
| 110 | { |
| 111 | return cvmx_read_csr(addr); |
| 112 | } |
| 113 | #else |
| 114 | #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr) |
| 115 | #define oct_mdio_readq(addr) readq((void *)addr) |
| 116 | #endif |
| 117 | |
| 118 | int cavium_mdiobus_read(struct mii_bus *bus, int phy_id, int regnum); |
| 119 | int cavium_mdiobus_write(struct mii_bus *bus, int phy_id, int regnum, u16 val); |