source: rtems/c/src/lib/libbsp/arm/lpc24xx/include/lpc-ethernet-config.h @ 991fdb33

4.115
Last change on this file since 991fdb33 was c499856, checked in by Chris Johns <chrisj@…>, on Mar 20, 2014 at 9:10:47 PM

Change all references of rtems.com to rtems.org.

  • Property mode set to 100644
File size: 3.0 KB
Line 
1/**
2 * @file
3 *
4 * @ingroup lpc24xx
5 *
6 * @brief Ethernet driver configuration.
7 */
8
9/*
10 * Copyright (c) 2009-2012 embedded brains GmbH.  All rights reserved.
11 *
12 *  embedded brains GmbH
13 *  Obere Lagerstr. 30
14 *  82178 Puchheim
15 *  Germany
16 *  <rtems@embedded-brains.de>
17 *
18 * The license and distribution terms for this file may be
19 * found in the file LICENSE in this distribution or at
20 * http://www.rtems.org/license/LICENSE.
21 */
22
23#ifndef LIBBSP_ARM_LPC24XX_LPC_ETHERNET_CONFIG_H
24#define LIBBSP_ARM_LPC24XX_LPC_ETHERNET_CONFIG_H
25
26#include <bsp.h>
27#include <bsp/io.h>
28#include <bsp/lpc24xx.h>
29
30#include <limits.h>
31
32#ifdef __cplusplus
33extern "C" {
34#endif /* __cplusplus */
35
36#define LPC_ETH_CONFIG_INTERRUPT LPC24XX_IRQ_ETHERNET
37
38#define LPC_ETH_CONFIG_REG_BASE MAC_BASE_ADDR
39
40#ifdef ARM_MULTILIB_ARCH_V4
41  #define LPC_ETH_CONFIG_RX_UNIT_COUNT_DEFAULT 16
42  #define LPC_ETH_CONFIG_RX_UNIT_COUNT_MAX 54
43
44  #define LPC_ETH_CONFIG_TX_UNIT_COUNT_DEFAULT 10
45  #define LPC_ETH_CONFIG_TX_UNIT_COUNT_MAX 10
46
47  #define LPC_ETH_CONFIG_UNIT_MULTIPLE 1U
48
49  #define LPC24XX_ETH_RAM_BEGIN 0x7fe00000U
50  #define LPC24XX_ETH_RAM_SIZE (16U * 1024U)
51#else
52  #define LPC_ETH_CONFIG_RX_UNIT_COUNT_DEFAULT 16
53  #define LPC_ETH_CONFIG_RX_UNIT_COUNT_MAX INT_MAX
54
55  #define LPC_ETH_CONFIG_TX_UNIT_COUNT_DEFAULT 32
56  #define LPC_ETH_CONFIG_TX_UNIT_COUNT_MAX INT_MAX
57
58  #define LPC_ETH_CONFIG_UNIT_MULTIPLE 8U
59
60  #define LPC_ETH_CONFIG_USE_TRANSMIT_DMA
61
62  #define LPC24XX_ETH_RAM_BEGIN 0x20000000U
63  #define LPC24XX_ETH_RAM_SIZE (32U * 1024U)
64#endif
65
66#ifdef LPC24XX_ETHERNET_RMII
67  #define LPC_ETH_CONFIG_RMII
68
69  static void lpc_eth_config_module_enable(void)
70  {
71    static const lpc24xx_pin_range pins [] = {
72      #ifdef LPC24XX_PIN_ETHERNET_POWER_DOWN
73        LPC24XX_PIN_ETHERNET_POWER_DOWN,
74      #endif
75      LPC24XX_PIN_ETHERNET_RMII_0,
76      LPC24XX_PIN_ETHERNET_RMII_1,
77      LPC24XX_PIN_ETHERNET_RMII_2,
78      LPC24XX_PIN_ETHERNET_RMII_3,
79      LPC24XX_PIN_TERMINAL
80    };
81
82    lpc24xx_module_enable(LPC24XX_MODULE_ETHERNET, LPC24XX_MODULE_PCLK_DEFAULT);
83    lpc24xx_pin_config(&pins [0], LPC24XX_PIN_SET_FUNCTION);
84
85    #ifdef LPC24XX_PIN_ETHERNET_POWER_DOWN
86      {
87        unsigned pin = lpc24xx_pin_get_first_index(&pins[0]);
88
89        lpc24xx_gpio_config(pin, LPC24XX_GPIO_OUTPUT);
90        lpc24xx_gpio_set(pin);
91      }
92    #endif
93  }
94#else
95  static void lpc_eth_config_module_enable(void)
96  {
97    static const lpc24xx_pin_range pins [] = {
98      LPC24XX_PIN_ETHERNET_MII,
99      LPC24XX_PIN_TERMINAL
100    };
101
102    lpc24xx_module_enable(LPC24XX_MODULE_ETHERNET, LPC24XX_MODULE_PCLK_DEFAULT);
103    lpc24xx_pin_config(&pins [0], LPC24XX_PIN_SET_FUNCTION);
104  }
105#endif
106
107static void lpc_eth_config_module_disable(void)
108{
109  lpc24xx_module_disable(LPC24XX_MODULE_ETHERNET);
110}
111
112static char *lpc_eth_config_alloc_table_area(size_t size)
113{
114  if (size < LPC24XX_ETH_RAM_SIZE) {
115    return (char *) LPC24XX_ETH_RAM_BEGIN;
116  } else {
117    return NULL;
118  }
119}
120
121static void lpc_eth_config_free_table_area(char *table_area)
122{
123  /* Do nothing */
124}
125
126#ifdef __cplusplus
127}
128#endif /* __cplusplus */
129
130#endif /* LIBBSP_ARM_LPC24XX_LPC_ETHERNET_CONFIG_H */
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