Compact Flash Serial ATA patch

[Russell McConnachie <russell.mcconnachie@guest-tek.com>]

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I was having some trouble with a serial ATA compact flash adapter with
libata. I wrote a small patch for the kernel to work around the sanity
check, dma blacklisting and device ID detections in ata_dev_classify(). 

I am not exactly a programmer, I'm sure this can be written much better
but for anyone who may run into a similar problem with compact flash.

Russell McConnachie.


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< 	    ((tf->lbam == 0x3c) && (tf->lbah == 0xc3))) {
< 		DPRINTK("found ATA device by sig\n");
< 		return ATA_DEV_ATA;
< 	}
---
> 		// Allows the compact flash to work, For some reason our 
> 		// Addonics SATA flash reader/writer. 
> 		// The following types of flash have been used: 
> 		// 	- Infineon 2.0GB
> 		// 	- Sandisk Ultra II 2.0GB 
> 		// 	- Lexar Platinum
> 		//
> 	
> 		// Sandisk Compact Flash
> 		((tf->lbam == 0x30) && (tf->lbah == 0)) ||
> 		 
> 		// Infineon Compact Flash 
> 		((tf->lbam == 0x50) && (tf->lbah == 0)) ||
> 		 
> 		// Infineon Compact Flash 
> 		((tf->lbam == 0x55) && (tf->lbah == 0)) ||
> 		           
> 		// Infineon Compact Flash 
> 		(((tf->lbam > 0x2f) && (tf->lbam < 0x7f))  && (tf->lbah == 0)) ||
> 		 
> 		((tf->lbam == 0x3c) && (tf->lbah == 0xc3))) {
> 		        DPRINTK("found ATA device by sig\n");
> 		        return ATA_DEV_ATA;
> 		}
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> 	else if (device == 0)
> 		/* do nothing */ ; 
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< 		if (!ata_id_is_ata(dev->id))	/* sanity check */
< 			goto err_out_nosup;
---
> //		if (!ata_id_is_ata(dev->id))	/* sanity check */
> //			goto err_out_nosup;
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> 	"MODEL",
> 	"SMI MODEL",
> 	"SanDisk SDCFH-2048",