1 /*==========================================================================
5 // HAL misc board support code for Atmel AT91SAM7X EK board
7 //==========================================================================
8 //####ECOSGPLCOPYRIGHTBEGIN####
9 // -------------------------------------------
10 // This file is part of eCos, the Embedded Configurable Operating System.
11 // Copyright (C) 2006 Andrew Lunn <andrew.lunn@ascom.ch>
13 // eCos is free software; you can redistribute it and/or modify it under
14 // the terms of the GNU General Public License as published by the Free
15 // Software Foundation; either version 2 or (at your option) any later version.
17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
22 // You should have received a copy of the GNU General Public License along
23 // with eCos; if not, write to the Free Software Foundation, Inc.,
24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
26 // As a special exception, if other files instantiate templates or use macros
27 // or inline functions from this file, or you compile this file and link it
28 // with other works to produce a work based on this file, this file does not
29 // by itself cause the resulting work to be covered by the GNU General Public
30 // License. However the source code for this file must still be made available
31 // in accordance with section (3) of the GNU General Public License.
33 // This exception does not invalidate any other reasons why a work based on
34 // this file might be covered by the GNU General Public License.
35 // -------------------------------------------
36 //####ECOSGPLCOPYRIGHTEND####
37 //==========================================================================
38 //#####DESCRIPTIONBEGIN####
40 // Author(s): andrew lunn
41 // Contributors: Andrew Lunn, John Eigelaar
43 // Purpose: HAL board support
44 // Description: Implementations of HAL board interfaces
46 //####DESCRIPTIONEND####
48 //========================================================================*/
50 #include <pkgconf/system.h>
51 #include <pkgconf/hal.h>
53 #include <cyg/hal/hal_io.h> // IO macros
55 // The development board has four LEDs
57 hal_at91_led (int val)
59 HAL_ARM_AT91_GPIO_CFG_DIRECTION(AT91_GPIO_PB19, AT91_PIN_OUT);
60 HAL_ARM_AT91_GPIO_CFG_DIRECTION(AT91_GPIO_PB20, AT91_PIN_OUT);
61 HAL_ARM_AT91_GPIO_CFG_DIRECTION(AT91_GPIO_PB21, AT91_PIN_OUT);
62 HAL_ARM_AT91_GPIO_CFG_DIRECTION(AT91_GPIO_PB22, AT91_PIN_OUT);
64 HAL_ARM_AT91_GPIO_CFG_PULLUP(AT91_GPIO_PB19, AT91_PIN_PULLUP_DISABLE);
65 HAL_ARM_AT91_GPIO_CFG_PULLUP(AT91_GPIO_PB20, AT91_PIN_PULLUP_DISABLE);
66 HAL_ARM_AT91_GPIO_CFG_PULLUP(AT91_GPIO_PB21, AT91_PIN_PULLUP_DISABLE);
67 HAL_ARM_AT91_GPIO_CFG_PULLUP(AT91_GPIO_PB22, AT91_PIN_PULLUP_DISABLE);
69 // Set the bits. The logic is inverted
70 HAL_ARM_AT91_GPIO_PUT(AT91_GPIO_PB19, !(val & 1));
71 HAL_ARM_AT91_GPIO_PUT(AT91_GPIO_PB20, !(val & 2));
72 HAL_ARM_AT91_GPIO_PUT(AT91_GPIO_PB21, !(val & 4));
73 HAL_ARM_AT91_GPIO_PUT(AT91_GPIO_PB22, !(val & 8));
76 void hal_plf_eth_init(void)
80 /* Enable the PIOB Clock */
81 HAL_WRITE_UINT32(AT91_PMC + AT91_PMC_PCER, AT91_PMC_PCER_PIOB);
83 /* RXDV / Testmode select */
84 HAL_ARM_AT91_GPIO_CFG_DIRECTION(AT91_GPIO_PB15, AT91_PIN_IN);
85 HAL_ARM_AT91_GPIO_CFG_PULLUP(AT91_GPIO_PB15, AT91_PIN_PULLUP_DISABLE);
87 //TODO: The errata reports that the RMII mode for the SAM7X does not work.
88 // It would probably still be a good idea to use the RMII/MII CDL
89 // configuration to select the appropriate mode here
90 /* COL / !MII select */
91 HAL_ARM_AT91_GPIO_CFG_DIRECTION(AT91_GPIO_PB16, AT91_PIN_IN);
92 HAL_ARM_AT91_GPIO_CFG_PULLUP(AT91_GPIO_PB16, AT91_PIN_PULLUP_DISABLE);
95 HAL_ARM_AT91_GPIO_CFG_DIRECTION(AT91_GPIO_PB0, AT91_PIN_IN);
96 HAL_ARM_AT91_GPIO_CFG_PULLUP(AT91_GPIO_PB0, AT91_PIN_PULLUP_DISABLE);
99 HAL_ARM_AT91_GPIO_CFG_DIRECTION(AT91_GPIO_PB18, AT91_PIN_OUT);
100 HAL_ARM_AT91_GPIO_PUT(AT91_GPIO_PB18,0);
102 /* All the lines setup correctly. Now do a external reset and let the phy
103 start up in the correct mode */
104 HAL_WRITE_UINT32(AT91_RST+AT91_RST_RMR,AT91_RST_RMR_KEY|(1<<0x8));
105 HAL_WRITE_UINT32(AT91_RST+AT91_RST_RCR,AT91_RST_RCR_KEY|AT91_RST_RCR_EXTRST);
108 HAL_READ_UINT32(AT91_RST+AT91_RST_RSR,stat);
109 } while (!(stat&AT91_RST_RSR_NRST_SET));
112 //--------------------------------------------------------------------------
113 // EOF at91sam7sek_misc.c