[U-Boot] GPIO - MPC8315

Marcos Cunha marcos at atlantico.com.br
Mon Dec 14 14:04:12 CET 2009


That was the problem.


After GPIO configuration this line resolve the problem.

*setbits_be32(&immr->sysconf.sicrh, SICRH_GPIO_0 | SICRH_GPIO_1 | 
SICRH_GPIO_2);*

The DEBUG output:

SPI - CHIP SELECT CONFIGURATION
&gpio = e0000c00
gpio->dir = 3f000000
gpio->odr = 0
gpio->ier = e0bfff0f
gpio->imr = 0
gpio->icr = 0
*gpio->dat = e0000000 *

sysconf.sicrl = 0
*sysconf.sicrh = fc000000*


Thanks



Günter Leonhardt wrote:
>  
> Did you setup the System I/O Configuration Registers SICRL, SICRH?
>
>   
>> I want to configure GPIOs on MPC8315, but I can't set the gpio. Below the configuration code and the output.
>>
>> What is wrong?
>>     
>
>
>   


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