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| author | Wolfgang Denk <wd@pollux.denx.de> | 2005-08-19 00:08:55 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@pollux.denx.de> | 2005-08-19 00:08:55 +0200 |
| commit | 601aed1e8f90c7e9a17f7e448cc21969d821bf50 (patch) | |
| tree | e159904ae1eae4828c31862eab15712ec4c0c83e /board | |
| parent | dbc5819098a74cb290e40652284f59f333df389e (diff) | |
| download | u-boot-imx-601aed1e8f90c7e9a17f7e448cc21969d821bf50.zip u-boot-imx-601aed1e8f90c7e9a17f7e448cc21969d821bf50.tar.gz u-boot-imx-601aed1e8f90c7e9a17f7e448cc21969d821bf50.tar.bz2 | |
Add automatic HW detection for another CMC_PU2 variant
Patch by Martin Krause, 20 Apr 2005
Diffstat (limited to 'board')
| -rw-r--r-- | board/cmc_pu2/cmc_pu2.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/board/cmc_pu2/cmc_pu2.c b/board/cmc_pu2/cmc_pu2.c index 8e0f6d3..e54ca9c 100644 --- 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); } |