u-boot/board/freescale/p2041rdb/cpld.h
Shaohui Xie 93ab6ca1c8 powerpc/p2041rdb: remove watch dog related codes
CPLD 2.2 removed board watch dog support due to the limitation of CPLD
capacity after adding all the requested features, such as switch overriding.
There is no pin-compatible upgrade part available for current PCB design.
So remove codes related to it.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2011-10-03 08:52:13 -05:00

59 lines
2.3 KiB
C

/**
* Copyright 2011 Freescale Semiconductor
* Author: Mingkai Hu <Mingkai.hu@freescale.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* 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)