[coreboot] [PATCH] flashrom: force-enable LPC-to-SPI write cycle translation for IT8716F

[Peter Stuge]

On Fri, May 16, 2008 at 02:01:44AM +0200, Carl-Daniel Hailfinger wrote:
> New patch.
> 
> On 15.05.2008 16:39, Carl-Daniel Hailfinger wrote:
> > Force-enable LPC write cycle to SPI write cycle translation
> > for IT8716F.
> >
> > Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>
> >   
> 
> Enable IT8716F LPC-to-SPI write cycle translation if the IT8716F decodes
> any address to the attached SPI ROM.
> 
> Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>

Acked-by: Peter Stuge <peter at stuge.se>


> Index: flashrom-ron/it87spi.c
> ===================================================================
> --- flashrom-ron/it87spi.c	(Revision 3321)
> +++ flashrom-ron/it87spi.c	(Arbeitskopie)
> @@ -93,6 +93,12 @@
>  			0xFFF80000, 0xFFFEFFFF, (tmp & 1 << 3) ? "en" : "dis");
>  		printf("LPC write to serial flash %sabled\n",
>  			(tmp & 1 << 4) ? "en" : "dis");
> +		/* If any serial flash segment is enabled, enable writing. */
> +		if ((tmp & 0xe) && (!(tmp & 1 << 4))) {
> +			printf("Enabling LPC write to serial flash\n");
> +			tmp |= 1 << 4;
> +			regwrite(port, 0x24, tmp);
> +		}
>  		printf("serial flash pin %i\n", (tmp & 1 << 5) ? 87 : 29);
>  		/* LDN 0x7, reg 0x64/0x65 */
>  		regwrite(port, 0x07, 0x7);