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