| /** |
| * Copyright 2011 Freescale Semiconductor |
| * Author: Mingkai Hu <Mingkai.hu@freescale.com> |
| * |
| * SPDX-License-Identifier: GPL-2.0+ |
| * |
| * This file provides support for the ngPIXIS, a board-specific FPGA used on |
| * some Freescale reference boards. |
| */ |
| |
| /* |
| * CPLD register set. Feel free to add board-specific #ifdefs where necessary. |
| */ |
| typedef struct cpld_data { |
| u8 cpld_ver; /* 0x0 - CPLD Major Revision Register */ |
| u8 cpld_ver_sub; /* 0x1 - CPLD Minor Revision Register */ |
| u8 pcba_ver; /* 0x2 - PCBA Revision Register */ |
| u8 system_rst; /* 0x3 - system reset register */ |
| u8 res0; /* 0x4 - not used */ |
| u8 sw_ctl_on; /* 0x5 - Switch Control Enable Register */ |
| u8 por_cfg; /* 0x6 - POR Control Register */ |
| u8 switch_strobe; /* 0x7 - Multiplexed pin Select Register */ |
| u8 jtag_sel; /* 0x8 - JTAG or AURORA Selection */ |
| u8 sdbank1_clk; /* 0x9 - SerDes Bank1 Reference clock */ |
| u8 sdbank2_clk; /* 0xa - SerDes Bank2 Reference clock */ |
| u8 fbank_sel; /* 0xb - Flash bank selection */ |
| u8 serdes_mux; /* 0xc - Multiplexed pin Select Register */ |
| u8 sw[1]; /* 0xd - SW2 Status */ |
| u8 system_rst_default; /* 0xe - system reset to default register */ |
| u8 sysclk_sw1; /* 0xf - sysclk configuration register */ |
| } __attribute__ ((packed)) cpld_data_t; |
| |
| #define SERDES_MUX_LANE_6_MASK 0x2 |
| #define SERDES_MUX_LANE_6_SHIFT 1 |
| #define SERDES_MUX_LANE_A_MASK 0x1 |
| #define SERDES_MUX_LANE_A_SHIFT 0 |
| #define SERDES_MUX_LANE_C_MASK 0x4 |
| #define SERDES_MUX_LANE_C_SHIFT 2 |
| #define SERDES_MUX_LANE_D_MASK 0x8 |
| #define SERDES_MUX_LANE_D_SHIFT 3 |
| #define CPLD_SWITCH_BANK_ENABLE 0x40 |
| #define CPLD_SYSCLK_83 0x1 /* system clock 83.3MHz */ |
| #define CPLD_SYSCLK_100 0x2 /* system clock 100MHz */ |
| |
| /* Pointer to the CPLD register set */ |
| #define cpld ((cpld_data_t *)CPLD_BASE) |
| |
| /* The CPLD SW register that corresponds to board switch X, where x >= 1 */ |
| #define CPLD_SW(x) (cpld->sw[(x) - 2]) |
| |
| u8 cpld_read(unsigned int reg); |
| void cpld_write(unsigned int reg, u8 value); |
| |
| #define CPLD_READ(reg) cpld_read(offsetof(cpld_data_t, reg)) |
| #define CPLD_WRITE(reg, value) cpld_write(offsetof(cpld_data_t, reg), value) |
