forked from Imagelibrary/rtems
131 lines
3.1 KiB
C
131 lines
3.1 KiB
C
/**
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* @file
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*
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* @ingroup RTEMSBSPsARMLPC24XX
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*
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* @brief Ethernet driver configuration.
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*/
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/*
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* Copyright (c) 2009-2012 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Obere Lagerstr. 30
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#ifndef LIBBSP_ARM_LPC24XX_LPC_ETHERNET_CONFIG_H
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#define LIBBSP_ARM_LPC24XX_LPC_ETHERNET_CONFIG_H
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#include <bsp.h>
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#include <bsp/io.h>
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#include <bsp/lpc24xx.h>
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#include <limits.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define LPC_ETH_CONFIG_INTERRUPT LPC24XX_IRQ_ETHERNET
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#define LPC_ETH_CONFIG_REG_BASE MAC_BASE_ADDR
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#ifdef ARM_MULTILIB_ARCH_V4
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#define LPC_ETH_CONFIG_RX_UNIT_COUNT_DEFAULT 16
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#define LPC_ETH_CONFIG_RX_UNIT_COUNT_MAX 54
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#define LPC_ETH_CONFIG_TX_UNIT_COUNT_DEFAULT 10
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#define LPC_ETH_CONFIG_TX_UNIT_COUNT_MAX 10
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#define LPC_ETH_CONFIG_UNIT_MULTIPLE 1U
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#define LPC24XX_ETH_RAM_BEGIN 0x7fe00000U
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#define LPC24XX_ETH_RAM_SIZE (16U * 1024U)
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#else
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#define LPC_ETH_CONFIG_RX_UNIT_COUNT_DEFAULT 16
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#define LPC_ETH_CONFIG_RX_UNIT_COUNT_MAX INT_MAX
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#define LPC_ETH_CONFIG_TX_UNIT_COUNT_DEFAULT 32
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#define LPC_ETH_CONFIG_TX_UNIT_COUNT_MAX INT_MAX
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#define LPC_ETH_CONFIG_UNIT_MULTIPLE 8U
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#define LPC_ETH_CONFIG_USE_TRANSMIT_DMA
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#define LPC24XX_ETH_RAM_BEGIN 0x20000000U
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#define LPC24XX_ETH_RAM_SIZE (32U * 1024U)
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#endif
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#ifdef LPC24XX_ETHERNET_RMII
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#define LPC_ETH_CONFIG_RMII
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static void lpc_eth_config_module_enable(void)
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{
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static const lpc24xx_pin_range pins [] = {
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#ifdef LPC24XX_PIN_ETHERNET_POWER_DOWN
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LPC24XX_PIN_ETHERNET_POWER_DOWN,
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#endif
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LPC24XX_PIN_ETHERNET_RMII_0,
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LPC24XX_PIN_ETHERNET_RMII_1,
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LPC24XX_PIN_ETHERNET_RMII_2,
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LPC24XX_PIN_ETHERNET_RMII_3,
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LPC24XX_PIN_TERMINAL
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};
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lpc24xx_module_enable(LPC24XX_MODULE_ETHERNET, LPC24XX_MODULE_PCLK_DEFAULT);
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lpc24xx_pin_config(&pins [0], LPC24XX_PIN_SET_FUNCTION);
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#ifdef LPC24XX_PIN_ETHERNET_POWER_DOWN
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{
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unsigned pin = lpc24xx_pin_get_first_index(&pins[0]);
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lpc24xx_gpio_config(pin, LPC24XX_GPIO_OUTPUT);
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lpc24xx_gpio_set(pin);
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}
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#endif
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}
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#else
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static void lpc_eth_config_module_enable(void)
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{
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static const lpc24xx_pin_range pins [] = {
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LPC24XX_PIN_ETHERNET_MII,
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LPC24XX_PIN_TERMINAL
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};
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lpc24xx_module_enable(LPC24XX_MODULE_ETHERNET, LPC24XX_MODULE_PCLK_DEFAULT);
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lpc24xx_pin_config(&pins [0], LPC24XX_PIN_SET_FUNCTION);
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}
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#endif
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static void lpc_eth_config_module_disable(void)
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{
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lpc24xx_module_disable(LPC24XX_MODULE_ETHERNET);
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}
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static char *lpc_eth_config_alloc_table_area(size_t size)
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{
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if (size < LPC24XX_ETH_RAM_SIZE) {
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return (char *) LPC24XX_ETH_RAM_BEGIN;
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} else {
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return NULL;
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}
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}
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static void lpc_eth_config_free_table_area(char *table_area)
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{
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/* Do nothing */
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}
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* LIBBSP_ARM_LPC24XX_LPC_ETHERNET_CONFIG_H */
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