Add automatic HW detection for another CMC_PU2 variant

Patch by Martin Krause, 20 Apr 2005

diff --git a/CHANGELOG b/CHANGELOG
index 98d271b6c59c23111457142a87c6e0ab1696a415..56f353997b8e8a46417a262e59747124940cf2b7 100644 (file)
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -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
 

diff --git a/board/cmc_pu2/cmc_pu2.c b/board/cmc_pu2/cmc_pu2.c
index 8e0f6d3b739c5de5c08271c6475210045fc4f97e..e54ca9cc37e50b793db3400a9042b077193620e4 100644 (file)
--- a/board/cmc_pu2/cmc_pu2.c
+++ b/board/cmc_pu2/cmc_pu2.c
@@ -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);
 }