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
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsARMLPC24XX
*
* @brief Ethernet driver configuration.
*/
/*
* Copyright (c) 2009-2012 embedded brains GmbH. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#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 */
|
