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

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Fri May 16 02:01:44 CEST 2008


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>

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);






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