| Mingkai Hu | f354b53 | 2011-07-07 12:29:15 +0800 | [diff] [blame] | 1 | /** |
| 2 | * Copyright 2011 Freescale Semiconductor |
| 3 | * Author: Mingkai Hu <Mingkai.hu@freescale.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License as published by the Free |
| 7 | * Software Foundation; either version 2 of the License, or (at your option) |
| 8 | * any later version. |
| 9 | * |
| 10 | * This file provides support for the ngPIXIS, a board-specific FPGA used on |
| 11 | * some Freescale reference boards. |
| 12 | */ |
| 13 | |
| 14 | /* |
| 15 | * CPLD register set. Feel free to add board-specific #ifdefs where necessary. |
| 16 | */ |
| 17 | typedef struct cpld_data { |
| 18 | u8 cpld_ver; /* 0x0 - CPLD Major Revision Register */ |
| 19 | u8 cpld_ver_sub; /* 0x1 - CPLD Minor Revision Register */ |
| 20 | u8 pcba_ver; /* 0x2 - PCBA Revision Register */ |
| 21 | u8 system_rst; /* 0x3 - system reset register */ |
| 22 | u8 wd_cfg; /* 0x4 - Watchdog Period Setting Register */ |
| 23 | u8 sw_ctl_on; /* 0x5 - Switch Control Enable Register */ |
| 24 | u8 por_cfg; /* 0x6 - POR Control Register */ |
| 25 | u8 switch_strobe; /* 0x7 - Multiplexed pin Select Register */ |
| 26 | u8 jtag_sel; /* 0x8 - JTAG or AURORA Selection */ |
| 27 | u8 sdbank1_clk; /* 0x9 - SerDes Bank1 Reference clock */ |
| 28 | u8 sdbank2_clk; /* 0xa - SerDes Bank2 Reference clock */ |
| 29 | u8 fbank_sel; /* 0xb - Flash bank selection */ |
| 30 | u8 serdes_mux; /* 0xc - Multiplexed pin Select Register */ |
| 31 | u8 sw[1]; /* 0xd - SW2 Status */ |
| 32 | } __attribute__ ((packed)) cpld_data_t; |
| 33 | |
| 34 | #define SERDES_MUX_LANE_6_MASK 0x2 |
| 35 | #define SERDES_MUX_LANE_6_SHIFT 1 |
| 36 | #define SERDES_MUX_LANE_A_MASK 0x1 |
| 37 | #define SERDES_MUX_LANE_A_SHIFT 0 |
| 38 | #define SERDES_MUX_LANE_C_MASK 0x4 |
| 39 | #define SERDES_MUX_LANE_C_SHIFT 2 |
| 40 | #define SERDES_MUX_LANE_D_MASK 0x8 |
| 41 | #define SERDES_MUX_LANE_D_SHIFT 3 |
| 42 | |
| 43 | /* Pointer to the CPLD register set */ |
| 44 | #define cpld ((cpld_data_t *)CPLD_BASE) |
| 45 | |
| 46 | /* The CPLD SW register that corresponds to board switch X, where x >= 1 */ |
| 47 | #define CPLD_SW(x) (cpld->sw[(x) - 2]) |
| 48 | |
| 49 | u8 cpld_read(unsigned int reg); |
| 50 | void cpld_write(unsigned int reg, u8 value); |
| 51 | |
| 52 | #define CPLD_READ(reg) cpld_read(offsetof(cpld_data_t, reg)) |
| 53 | #define CPLD_WRITE(reg, value) cpld_write(offsetof(cpld_data_t, reg), value) |