RTEMS: bsps/arm/lpc24xx/include/bsp/lpc-ethernet-config.h Source File

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lpc-ethernet-config.h
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1
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 */
NULL
#define NULL
Requests a GPIO pin group configuration.
Definition: bestcomm_api.h:77
lpc24xx_pin_config
rtems_status_code lpc24xx_pin_config(const lpc24xx_pin_range *pins, lpc24xx_pin_action action)
Performs the action with the pins.
Definition: io.c:517
LPC24XX_PIN_SET_FUNCTION
@ LPC24XX_PIN_SET_FUNCTION
Sets the pin function.
Definition: io.h:206
lpc24xx.h
Register definitions.
lpc24xx_pin_range
Definition: io.h:224