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Add automatic HW detection for another CMC_PU2 variant 

Patch by Martin Krause, 20 Apr 2005
This commit is contained in:
Wolfgang Denk 2005-08-19 00:08:55 +02:00
parent dbc5819098
commit 601aed1e8f
2 changed files with 23 additions and 7 deletions
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7
CHANGELOG
View File

@ -2,14 +2,17 @@
Changes for U-Boot 1.1.4:
======================================================================
* Add automatic HW detection for another CMC_PU2 variant
Patch by Martin Krause, 20 Apr 2005
* Remove CONFIG_AT91RM9200DK in CMC-PU2 configuration
Patch by Martin Krause, 19 Apr 2005
* Fix initialization problem on TQM5200 without SM501
Patch by Martin Krause, 8 Apr. 2005
Patch by Martin Krause, 08 Apr 2005
* Add RTC support for STK52XX.200
Patch by Martin Krause, 7 Apr. 2005
Patch by Martin Krause, 07 Apr 2005
* Add support for IFM o2dnt board

23
board/cmc_pu2/cmc_pu2.c
View File

@ -35,8 +35,9 @@
/*
* Miscelaneous platform dependent initialisations
*/
#define CMC_BASIC 1
#define CMC_HP_BASIC 1
#define CMC_PU2 2
#define CMC_BASIC 4
int hw_detect (void);
@ -74,14 +75,14 @@ int board_init (void)
/*
* On CMC-PU2 board configure PB3-PB6 to input without pull ups to
* clear the duo LEDs (the external pull downs assure a proper
* signal). On CMC-BASIC set PB3-PB6 to output and drive it
* high, to configure current meassurement on AINx.
* signal). On CMC-BASIC and CMC-HP-BASIC set PB3-PB6 to output and
* drive it high, to configure current measurement on AINx.
*/
if (hw_detect() & CMC_PU2) {
piob->PIO_ODR = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
AT91C_PIO_PB5 | AT91C_PIO_PB6;
}
else if (hw_detect() & CMC_BASIC) {
else if ((hw_detect() & CMC_BASIC) || (hw_detect() & CMC_HP_BASIC)) {
piob->PIO_SODR = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
AT91C_PIO_PB5 | AT91C_PIO_PB6;
piob->PIO_OER = AT91C_PIO_PB3 | AT91C_PIO_PB4 |
@ -119,6 +120,8 @@ int checkboard (void)
puts ("Board: CMC-PU2 (Rittal GmbH)\n");
else if (hw_detect() & CMC_BASIC)
puts ("Board: CMC-BASIC (Rittal GmbH)\n");
else if (hw_detect() & CMC_HP_BASIC)
puts ("Board: CMC-HP-BASIC (Rittal GmbH)\n");
else
puts ("Board: unknown\n");
return 0;
@ -135,7 +138,17 @@ int hw_detect (void)
pio->PIO_ODR = AT91C_PIO_PB12;
pio->PIO_PPUDR = AT91C_PIO_PB12;
pio->PIO_PER = AT91C_PIO_PB12;
/* configure PB13 as input without pull up */
pio->PIO_ODR = AT91C_PIO_PB13;
pio->PIO_PPUDR = AT91C_PIO_PB13;
pio->PIO_PER = AT91C_PIO_PB13;
/* read board identification pin */
return ((pio->PIO_PDSR & AT91C_PIO_PB12) ? CMC_PU2 : CMC_BASIC);
if (pio->PIO_PDSR & AT91C_PIO_PB12)
return ((pio->PIO_PDSR & AT91C_PIO_PB13)
? CMC_PU2 : 0);
else
return ((pio->PIO_PDSR & AT91C_PIO_PB13)
? CMC_HP_BASIC : CMC_BASIC);
}