2 * Copyright (c) 2006 M. Warner Losh. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 * This software is derived from software provide by Kwikbyte who specifically
25 * disclaimed copyright on the code.
30 /******************************************************************************
34 * Instantiation of routines for MAC/ethernet functions supporting tftp.
36 * Revision information:
38 * 28AUG2004 kb_admin initial creation
39 * 08JAN2005 kb_admin added tftp download
40 * also adapted from external sources
43 * No warranty, expressed or implied, is included with this software. It is
44 * provided "AS IS" and no warranty of any kind including statutory or aspects
45 * relating to merchantability or fitness for any purpose is provided. All
46 * intellectual property rights of others is maintained with the respective
47 * owners. This software is not copyrighted and is intended for reference
50 ******************************************************************************/
52 #include "at91rm9200.h"
53 #include "at91rm9200_lowlevel.h"
57 /* ****************************** GLOBALS *************************************/
60 unsigned char localMACAddr[6];
61 unsigned localMAClow, localMAChigh;
63 /* ********************** PRIVATE FUNCTIONS/DATA ******************************/
66 * .KB_C_FN_DEFINITION_START
67 * void EMAC_SetMACAddress(unsigned low_address, unsigned high_address)
68 * This global function sets the MAC address. low_address is the first
69 * four bytes while high_address is the last 2 bytes of the 48-bit value.
70 * .KB_C_FN_DEFINITION_END
73 EMAC_SetMACAddress(unsigned char mac[6])
75 AT91PS_PMC pPMC = AT91C_BASE_PMC;
76 AT91PS_EMAC pEmac = AT91C_BASE_EMAC;
78 /* enable the peripheral clock before using EMAC */
79 pPMC->PMC_PCER = ((unsigned) 1 << AT91C_ID_EMAC);
81 memcpy(localMACAddr, mac, 6);
82 localMAClow = (mac[3] << 24) | (mac[2] << 16) | (mac[1] << 8) | mac[0];
83 localMAChigh = (mac[5] << 8) | mac[4];
86 AT91C_BASE_PMC->PMC_PCER = 1u << AT91C_ID_EMAC;
87 AT91C_BASE_PIOA->PIO_ASR =
88 AT91C_PA14_ERXER | AT91C_PA12_ERX0 | AT91C_PA13_ERX1 |
89 AT91C_PA8_ETXEN | AT91C_PA16_EMDIO | AT91C_PA9_ETX0 |
90 AT91C_PA10_ETX1 | AT91C_PA11_ECRS_ECRSDV | AT91C_PA15_EMDC |
91 AT91C_PA7_ETXCK_EREFCK;
92 AT91C_BASE_PIOA->PIO_PDR =
93 AT91C_PA14_ERXER | AT91C_PA12_ERX0 | AT91C_PA13_ERX1 |
94 AT91C_PA8_ETXEN | AT91C_PA16_EMDIO | AT91C_PA9_ETX0 |
95 AT91C_PA10_ETX1 | AT91C_PA11_ECRS_ECRSDV | AT91C_PA15_EMDC |
96 AT91C_PA7_ETXCK_EREFCK;
97 #if defined(BOOT_KB920X) | defined(BOOT_BWCT) /* Really !RMII */
98 AT91C_BASE_PIOB->PIO_BSR =
99 AT91C_PB12_ETX2 | AT91C_PB13_ETX3 | AT91C_PB14_ETXER |
100 AT91C_PB15_ERX2 | AT91C_PB16_ERX3 | AT91C_PB17_ERXDV |
101 AT91C_PB18_ECOL | AT91C_PB19_ERXCK;
102 AT91C_BASE_PIOB->PIO_PDR =
103 AT91C_PB12_ETX2 | AT91C_PB13_ETX3 | AT91C_PB14_ETXER |
104 AT91C_PB15_ERX2 | AT91C_PB16_ERX3 | AT91C_PB17_ERXDV |
105 AT91C_PB18_ECOL | AT91C_PB19_ERXCK;
109 pEmac->EMAC_CFG = (pEmac->EMAC_CFG & ~(AT91C_EMAC_CLK)) |
113 AT91C_EMAC_CLK_HCLK_32 | AT91C_EMAC_CAF;
114 // the sequence write EMAC_SA1L and write EMAC_SA1H must be respected
115 pEmac->EMAC_SA1L = localMAClow;
116 pEmac->EMAC_SA1H = localMAChigh;