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Linux/PROCESSOR-SDK-AM335X: MMC CD as GPIO

Zee blue
Intellectual 320 points
Part Number: PROCESSOR-SDK-AM335X


Tool/software: Linux

Hi,

Is there any way to use the MMC0_CD pin as a normal GPIO for my application.I am using SD card but I dont need the MMC_CD functionality.I just modified the dtb for mmc-cd to non-removable so that CD may not be used(I am not sure this).Which is working good .

But when I am configuring the same for GPIO in my overlay dtbo,kernel is not booting .

Do I missed any other configurations ?

Please suggest.

Regards

Zee


								


				
				

				
			

		

			
						
									
                			    			            
						
						
			
			
			
			                        
			

				

			


			

		


				    			

						

















	

	

					
    
	
    





		
	
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                          TI__Guru****
                        170625 points
                      
    
                          
                   		
		
    
					
    Hi Zee,
    

    
Do you use AM335x TI board (EVM, SK, BBB) or custom board?
    

    
Do you use AM335x TI PSDK v4.03?
    

    
In MMCx node, make sure you have removed "cd-gpios = <&gpioX X GPIO_ACTIVE_X>;" entry. Make sure also you have removed gpio pinmux in mmcx_pins entry, and put that gpio pinmux in the proper place.
    

    
Regards,
    
Pavel
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    

	            
                 	
	
    
				
		                
                
                
                
                
                
                
        		
		
				
    
			
		
    
		
		 
		
		
     
    
	
    

    
			
    
			
    
		
    

		
    
	
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