target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/rb4xx_cpld.h

   1 /*
   2  * SPI driver definitions for the CPLD chip on the Mikrotik RB4xx boards
   3  *
   4  * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  * This file was based on the patches for Linux 2.6.27.39 published by
   7  * MikroTik for their RouterBoard 4xx series devices.
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License version 2 as published
  11  * by the Free Software Foundation.
  12  */
  13
  14 #define CPLD_GPIO_nLED1         0
  15 #define CPLD_GPIO_nLED2         1
  16 #define CPLD_GPIO_nLED3         2
  17 #define CPLD_GPIO_nLED4         3
  18 #define CPLD_GPIO_FAN           4
  19 #define CPLD_GPIO_ALE           5
  20 #define CPLD_GPIO_CLE           6
  21 #define CPLD_GPIO_nCE           7
  22 #define CPLD_GPIO_nLED5         8
  23
  24 #define CPLD_NUM_GPIOS          9
  25
  26 #define CPLD_CFG_nLED1          BIT(CPLD_GPIO_nLED1)
  27 #define CPLD_CFG_nLED2          BIT(CPLD_GPIO_nLED2)
  28 #define CPLD_CFG_nLED3          BIT(CPLD_GPIO_nLED3)
  29 #define CPLD_CFG_nLED4          BIT(CPLD_GPIO_nLED4)
  30 #define CPLD_CFG_FAN            BIT(CPLD_GPIO_FAN)
  31 #define CPLD_CFG_ALE            BIT(CPLD_GPIO_ALE)
  32 #define CPLD_CFG_CLE            BIT(CPLD_GPIO_CLE)
  33 #define CPLD_CFG_nCE            BIT(CPLD_GPIO_nCE)
  34 #define CPLD_CFG_nLED5          BIT(CPLD_GPIO_nLED5)
  35
  36 struct rb4xx_cpld_platform_data {
  37         unsigned        gpio_base;
  38 };
  39
  40 extern int rb4xx_cpld_change_cfg(unsigned mask, unsigned value);
  41 extern int rb4xx_cpld_read(unsigned char *rx_buf,
  42                            const unsigned char *verify_buf,
  43                            unsigned cnt);
  44 extern int rb4xx_cpld_read_from(unsigned addr,
  45                                 unsigned char *rx_buf,
  46                                 const unsigned char *verify_buf,
  47                                 unsigned cnt);
  48 extern int rb4xx_cpld_write(const unsigned char *buf, unsigned count);