b04ae46ea6
* boards/arm/tiva/tm4c129e-launchpad: New subdirectory providing board support for the Texas Instruments TM4C Crypto Connected LaunchPad, or more correctly the EK-TM4C129EXL. * Documentation/introduction/detailed_support.rst, Documentation/introduction/supported_platforms.rst, boards/README.txt: Document the additional board support. * boards/Kconfig: (ARCH_BOARD_TM4C129E_LAUNCHPAD): New config. (ARCH_BOARD): Add tm4c129e-launchpad. (Board-Specific Options): Source the board-specific Kconfig boards/arm/tiva/tm4c129e-launchpad/Kconfig when selected.
88 lines
3.2 KiB
C
88 lines
3.2 KiB
C
/****************************************************************************
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* boards/arm/tiva/tm4c129e-launchpad/src/tm4c_ethernet.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <inttypes.h>
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#include <stdint.h>
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#include <debug.h>
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#include <assert.h>
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#include <arch/board/board.h>
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#include <net/ethernet.h>
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#include "arm_internal.h"
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#include "chip.h"
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#include "hardware/tiva_flash.h"
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#include "tiva_ethernet.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: tiva_ethernetmac
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*
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* Description:
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* For the Ethernet Eval Kits, the MAC address will be stored in the
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* non-volatile USER0 and USER1 registers.
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* If CONFIG_TIVA_BOARDMAC is defined, this function
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* will obtain the MAC address from these registers.
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*
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****************************************************************************/
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#ifdef CONFIG_TIVA_BOARDMAC
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void tiva_ethernetmac(struct ether_addr *ethaddr)
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{
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uint32_t user0;
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uint32_t user1;
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/* Get the current value of the user registers */
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user0 = getreg32(TIVA_FLASH_USERREG0);
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user1 = getreg32(TIVA_FLASH_USERREG1);
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ninfo("user: %06" PRIx32 ":%06" PRIx32 "\n",
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user1 & 0x00ffffff, user0 & 0x00ffffff);
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DEBUGASSERT(user0 != 0xffffffff && user1 != 0xffffffff);
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/* Re-format that MAC address the way that the network expects to see it */
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ethaddr->ether_addr_octet[0] = ((user0 >> 0) & 0xff);
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ethaddr->ether_addr_octet[1] = ((user0 >> 8) & 0xff);
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ethaddr->ether_addr_octet[2] = ((user0 >> 16) & 0xff);
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ethaddr->ether_addr_octet[3] = ((user1 >> 0) & 0xff);
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ethaddr->ether_addr_octet[4] = ((user1 >> 8) & 0xff);
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ethaddr->ether_addr_octet[5] = ((user1 >> 16) & 0xff);
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}
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#endif
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