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author | Gregory Nutt <gnutt@nuttx.org> | 2015-01-01 12:28:46 -0600 |
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committer | Gregory Nutt <gnutt@nuttx.org> | 2015-01-01 12:28:46 -0600 |
commit | af25f1123d65420a9d05e43b6b0bc929d09150eb (patch) | |
tree | 5d0e3c18bd72fbd2aa679a38a9093983c1c55826 /nuttx/configs/dk-tm4c129x | |
parent | 2042a54f1d8925a9514d87e290f17018188ab404 (diff) | |
download | px4-nuttx-af25f1123d65420a9d05e43b6b0bc929d09150eb.tar.gz px4-nuttx-af25f1123d65420a9d05e43b6b0bc929d09150eb.tar.bz2 px4-nuttx-af25f1123d65420a9d05e43b6b0bc929d09150eb.zip |
TM4C129X Ethernet: Add logic to get pre-programmed MAC address from user FLASH registers
Diffstat (limited to 'nuttx/configs/dk-tm4c129x')
-rw-r--r-- | nuttx/configs/dk-tm4c129x/src/Makefile | 4 | ||||
-rw-r--r-- | nuttx/configs/dk-tm4c129x/src/tm4c_ethernet.c | 99 |
2 files changed, 103 insertions, 0 deletions
diff --git a/nuttx/configs/dk-tm4c129x/src/Makefile b/nuttx/configs/dk-tm4c129x/src/Makefile index d3365f77b..99739fa76 100644 --- a/nuttx/configs/dk-tm4c129x/src/Makefile +++ b/nuttx/configs/dk-tm4c129x/src/Makefile @@ -51,6 +51,10 @@ ifeq ($(CONFIG_ARCH_BUTTONS),y) CSRCS += tm4c_buttons.c endif +ifeq ($(CONFIG_TIVA_ETHERNET),y) +CSRCS += tm4c_ethernet.c +endif + ifeq ($(CONFIG_NSH_ARCHINIT),y) CSRCS += tm4c_nsh.c endif diff --git a/nuttx/configs/dk-tm4c129x/src/tm4c_ethernet.c b/nuttx/configs/dk-tm4c129x/src/tm4c_ethernet.c new file mode 100644 index 000000000..9394a4522 --- /dev/null +++ b/nuttx/configs/dk-tm4c129x/src/tm4c_ethernet.c @@ -0,0 +1,99 @@ +/************************************************************************************ + * configs/dk-tm4c129x/src/tm4c_ethernet.c + * + * Copyright (C) 2015 Gregory Nutt. All rights reserved. + * Authors: Gregory Nutt <gnutt@nuttx.org> + * + * 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. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * 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. + * + ************************************************************************************/ + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> +#include <debug.h> +#include <assert.h> + +#include <arch/board/board.h> +#include <net/ethernet.h> + +#include "up_arch.h" +#include "chip.h" +#include "chip/tiva_flash.h" +#include "tiva_ethernet.h" + +/************************************************************************************ + * Pre-processor Definitions + ************************************************************************************/ + +/************************************************************************************ + * Private Functions + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +/************************************************************************************ + * Name: tiva_ethernetmac + * + * Description: + * For the Ethernet Eval Kits, the MAC address will be stored in the non-volatile + * USER0 and USER1 registers. If CONFIG_TIVA_BOARDMAC is defined, this function + * will obtain the MAC address from these registers. + * + ************************************************************************************/ + +#ifdef CONFIG_TIVA_BOARDMAC +void tiva_ethernetmac(struct ether_addr *ethaddr) +{ + uint32_t user0; + uint32_t user1; + + /* Get the current value of the user registers */ + + user0 = getreg32(TIVA_FLASH_USERREG0); + user1 = getreg32(TIVA_FLASH_USERREG1); + + nlldbg("user: %06x:%06x\n", user1 & 0x00ffffff, user0 & 0x00ffffff); + DEBUGASSERT(user0 != 0xffffffff && user1 != 0xffffffff); + + /* Re-format that MAC address the way that uIP expects to see it */ + + ethaddr->ether_addr_octet[0] = ((user0 >> 0) & 0xff); + ethaddr->ether_addr_octet[1] = ((user0 >> 8) & 0xff); + ethaddr->ether_addr_octet[2] = ((user0 >> 16) & 0xff); + ethaddr->ether_addr_octet[3] = ((user1 >> 0) & 0xff); + ethaddr->ether_addr_octet[4] = ((user1 >> 8) & 0xff); + ethaddr->ether_addr_octet[5] = ((user1 >> 16) & 0xff); +} +#endif |