Re: [flashrom] [PATCH] ICH6+ FWH IDSEL override

[Chris Kinney]

Acked-by: Chris Kinney

[root@k2 flashrom]# ./flashrom -p internal=fwh_idsel=0
flashrom v0.9.0-r670
coreboot table found at 0xcf7f3c00.
Vendor ID: KONTRON, part ID: 986LCD-M
Found chipset "Intel ICH7/ICH7R", enabling flash write...
Setting IDSEL=0 for top 8 MBOK.
This chipset supports the following protocols: LPC,FWH.
Disabling flash write protection for board "Kontron 986LCD-M"... OK.
Calibrating delay loop... OK.
Found chip "SST SST49LF016C" (2048 KB, FWH) at physical address 0xffe00000.
No operations were specified.

Chris Kinney wrote:
> [root@k2 flashrom]# ./flashrom -p internal=fwh_idsel=0
> flashrom v0.9.0-r670
> coreboot table found at 0xcf7f3c00.
> Vendor ID: KONTRON, part ID: 986LCD-M
> Found chipset "Intel ICH7/ICH7R", enabling flash write...
> Setting IDSEL=0 for top 8 MBOK.
> This chipset supports the following protocols: LPC,FWH.
> Disabling flash write protection for board "Kontron 986LCD-M"... OK.
> Calibrating delay loop... OK.
> Found chip "SST SST49LF016C" (2048 KB, FWH) at physical address 0xffe00000.
> No operations were specified.
>
> Carl-Daniel Hailfinger wrote:
> > Allow the user to override FWH IDSEL on ICH6 and later.
> > Usage:
> > flashrom -p internal=fwh_idsel=0
> >
> > Signed-off-by: Carl-Daniel Hailfinger
> > Index: flashrom-ich6_fwh_idsel/chipset_enable.c
> >
> > --- flashrom-ich6_fwh_idsel/chipset_enable.c	(Revision 683)
> > +++ flashrom-ich6_fwh_idsel/chipset_enable.c	(Arbeitskopie)
> > @@ -203,6 +203,7 @@
> >  {
> >    uint32_t fwh_conf;
> >    int i;
> >
> > char *idsel = NULL;
> >
> > /* Ignore all legacy ranges below 1 MB. */
> > /* FWH_SEL1 */
> >
> > @@ -232,6 +233,19 @@
> >    		     (0xff0 + i) * 0x100000,
> >    		     (fwh_conf >> i) & 0x1 ? "en" : "dis");
> > if (programmer_param)
> > idsel = strstr(programmer_param, "fwh_idsel=");
> > if (idsel) {
> > idsel += strlen("fwh_idsel=");
> > fwh_conf = (uint32_t)strtoul(idsel, NULL, 0);
> > /* FIXME: Need to undo this on shutdown. */
> > printf("\nSetting IDSEL=0x%x for top 16 MB", fwh_conf);
> > pci_write_long(dev, 0xd0, fwh_conf);
> > pci_write_word(dev, 0xd4, fwh_conf);
> > }
> > return enable_flash_ich(dev, name, 0xdc);
> >
> > }
>
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