source: rtems/c/src/lib/libbsp/arm/lpc24xx/include/lpc-ethernet-config.h @ e7395c7

4.115
Last change on this file since e7395c7 was e7395c7, checked in by Sebastian Huber <sebastian.huber@…>, on Jun 12, 2012 at 7:55:52 AM

bsp/lpc24xx: Ethernet support for LPC17XX

  • Property mode set to 100644
File size: 2.6 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.com/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      LPC24XX_PIN_ETHERNET_RMII_0,
73      LPC24XX_PIN_ETHERNET_RMII_1,
74      LPC24XX_PIN_ETHERNET_RMII_2,
75      LPC24XX_PIN_ETHERNET_RMII_3,
76      LPC24XX_PIN_TERMINAL
77    };
78
79    lpc24xx_module_enable(LPC24XX_MODULE_ETHERNET, LPC24XX_MODULE_PCLK_DEFAULT);
80    lpc24xx_pin_config(&pins [0], LPC24XX_PIN_SET_FUNCTION);
81  }
82#else
83  static void lpc_eth_config_module_enable(void)
84  {
85    static const lpc24xx_pin_range pins [] = {
86      LPC24XX_PIN_ETHERNET_MII,
87      LPC24XX_PIN_TERMINAL
88    };
89
90    lpc24xx_module_enable(LPC24XX_MODULE_ETHERNET, LPC24XX_MODULE_PCLK_DEFAULT);
91    lpc24xx_pin_config(&pins [0], LPC24XX_PIN_SET_FUNCTION);
92  }
93#endif
94
95static char *lpc_eth_config_alloc_table_area(size_t size)
96{
97  if (size < LPC24XX_ETH_RAM_SIZE) {
98    return (char *) LPC24XX_ETH_RAM_BEGIN;
99  } else {
100    return NULL;
101  }
102}
103
104static void lpc_eth_config_free_table_area(char *table_area)
105{
106  /* Do nothing */
107}
108
109#ifdef __cplusplus
110}
111#endif /* __cplusplus */
112
113#endif /* LIBBSP_ARM_LPC24XX_LPC_ETHERNET_CONFIG_H */
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