summaryrefslogtreecommitdiffstats
path: root/bsps/arm/lpc24xx/include/bsp/lpc-ethernet-config.h
blob: 255a90d7b1b0fdb7d4a961d65b55ddc6b6bcadbc (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
/**
 * @file
 *
 * @ingroup RTEMSBSPsARMLPC24XX
 *
 * @brief Ethernet driver configuration.
 */

/*
 * Copyright (c) 2009-2012 embedded brains GmbH.  All rights reserved.
 *
 *  embedded brains GmbH
 *  Obere Lagerstr. 30
 *  82178 Puchheim
 *  Germany
 *  <rtems@embedded-brains.de>
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rtems.org/license/LICENSE.
 */

#ifndef LIBBSP_ARM_LPC24XX_LPC_ETHERNET_CONFIG_H
#define LIBBSP_ARM_LPC24XX_LPC_ETHERNET_CONFIG_H

#include <bsp.h>
#include <bsp/io.h>
#include <bsp/lpc24xx.h>

#include <limits.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

#define LPC_ETH_CONFIG_INTERRUPT LPC24XX_IRQ_ETHERNET

#define LPC_ETH_CONFIG_REG_BASE MAC_BASE_ADDR

#ifdef ARM_MULTILIB_ARCH_V4
  #define LPC_ETH_CONFIG_RX_UNIT_COUNT_DEFAULT 16
  #define LPC_ETH_CONFIG_RX_UNIT_COUNT_MAX 54

  #define LPC_ETH_CONFIG_TX_UNIT_COUNT_DEFAULT 10
  #define LPC_ETH_CONFIG_TX_UNIT_COUNT_MAX 10

  #define LPC_ETH_CONFIG_UNIT_MULTIPLE 1U

  #define LPC24XX_ETH_RAM_BEGIN 0x7fe00000U
  #define LPC24XX_ETH_RAM_SIZE (16U * 1024U)
#else
  #define LPC_ETH_CONFIG_RX_UNIT_COUNT_DEFAULT 16
  #define LPC_ETH_CONFIG_RX_UNIT_COUNT_MAX INT_MAX

  #define LPC_ETH_CONFIG_TX_UNIT_COUNT_DEFAULT 32
  #define LPC_ETH_CONFIG_TX_UNIT_COUNT_MAX INT_MAX

  #define LPC_ETH_CONFIG_UNIT_MULTIPLE 8U

  #define LPC_ETH_CONFIG_USE_TRANSMIT_DMA

  #define LPC24XX_ETH_RAM_BEGIN 0x20000000U
  #define LPC24XX_ETH_RAM_SIZE (32U * 1024U)
#endif

#ifdef LPC24XX_ETHERNET_RMII
  #define LPC_ETH_CONFIG_RMII

  static void lpc_eth_config_module_enable(void)
  {
    static const lpc24xx_pin_range pins [] = {
      #ifdef LPC24XX_PIN_ETHERNET_POWER_DOWN
        LPC24XX_PIN_ETHERNET_POWER_DOWN,
      #endif
      LPC24XX_PIN_ETHERNET_RMII_0,
      LPC24XX_PIN_ETHERNET_RMII_1,
      LPC24XX_PIN_ETHERNET_RMII_2,
      LPC24XX_PIN_ETHERNET_RMII_3,
      LPC24XX_PIN_TERMINAL
    };

    lpc24xx_module_enable(LPC24XX_MODULE_ETHERNET, LPC24XX_MODULE_PCLK_DEFAULT);
    lpc24xx_pin_config(&pins [0], LPC24XX_PIN_SET_FUNCTION);

    #ifdef LPC24XX_PIN_ETHERNET_POWER_DOWN
      {
        unsigned pin = lpc24xx_pin_get_first_index(&pins[0]);

        lpc24xx_gpio_config(pin, LPC24XX_GPIO_OUTPUT);
        lpc24xx_gpio_set(pin);
      }
    #endif
  }
#else
  static void lpc_eth_config_module_enable(void)
  {
    static const lpc24xx_pin_range pins [] = {
      LPC24XX_PIN_ETHERNET_MII,
      LPC24XX_PIN_TERMINAL
    };

    lpc24xx_module_enable(LPC24XX_MODULE_ETHERNET, LPC24XX_MODULE_PCLK_DEFAULT);
    lpc24xx_pin_config(&pins [0], LPC24XX_PIN_SET_FUNCTION);
  }
#endif

static void lpc_eth_config_module_disable(void)
{
  lpc24xx_module_disable(LPC24XX_MODULE_ETHERNET);
}

static char *lpc_eth_config_alloc_table_area(size_t size)
{
  if (size < LPC24XX_ETH_RAM_SIZE) {
    return (char *) LPC24XX_ETH_RAM_BEGIN;
  } else {
    return NULL;
  }
}

static void lpc_eth_config_free_table_area(char *table_area)
{
  /* Do nothing */
}

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* LIBBSP_ARM_LPC24XX_LPC_ETHERNET_CONFIG_H */