/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsARMLPC24XX
*
* @brief Ethernet driver configuration.
*/
/*
* Copyright (C) 2009, 2012 embedded brains GmbH & Co. KG
*
* 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 */
