Attention is currently required from: Michał Żygowski, Angel Pons.

Nico Huber would like Michał Żygowski and Angel Pons to review this change.

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[RFC] ich_descriptors: Don't base chipset detection on `freq_read`

Only warn if the `freq_read` setting looks odd but don't override
our previous guess. The `freq_read` check was taken from `ifdtool`
but seems less reliable than our own detection scheme.

Change-Id: I658d76ec2567d1d660a18d0b0ae71c744e603e8f
Signed-off-by: Nico Huber <nico.h@gmx.de>
---
M ich_descriptors.c
1 file changed, 3 insertions(+), 5 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/50/55650/1
diff --git a/ich_descriptors.c b/ich_descriptors.c
index da49326..edc6bf4 100644
--- a/ich_descriptors.c
+++ b/ich_descriptors.c
@@ -984,7 +984,7 @@
case CHIPSET_400_SERIES_COMET_POINT:
case CHIPSET_GEMINI_LAKE:
/* `freq_read` was repurposed, so can't check on it any more. */
- return guess;
+ break;
case CHIPSET_100_SERIES_SUNRISE_POINT:
case CHIPSET_C620_SERIES_LEWISBURG:
case CHIPSET_APOLLO_LAKE:
@@ -993,19 +993,17 @@
"However, the read frequency isn't set to 17MHz (the only valid value).\n"
"Please report this message, the output of `ich_descriptors_tool` for\n"
"your descriptor and the output of `lspci -nn` to flashrom@flashrom.org\n\n");
- return CHIPSET_9_SERIES_WILDCAT_POINT;
}
- return guess;
+ break;
default:
if (component->modes.freq_read == 6) {
msg_pwarn("\nThe flash descriptor has the read frequency set to 17MHz. However,\n"
"it doesn't look like a Skylake/Sunrise Point compatible descriptor.\n"
"Please report this message, the output of `ich_descriptors_tool` for\n"
"your descriptor and the output of `lspci -nn` to flashrom@flashrom.org\n\n");
- return CHIPSET_100_SERIES_SUNRISE_POINT;
}
- return guess;
}
+ return guess;
}

/* len is the length of dump in bytes */

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Gerrit-Project: flashrom
Gerrit-Branch: master
Gerrit-Change-Id: I658d76ec2567d1d660a18d0b0ae71c744e603e8f
Gerrit-Change-Number: 55650
Gerrit-PatchSet: 1
Gerrit-Owner: Nico Huber <nico.h@gmx.de>
Gerrit-Reviewer: Angel Pons <th3fanbus@gmail.com>
Gerrit-Reviewer: Michał Żygowski <michal.zygowski@3mdeb.com>
Gerrit-Attention: Michał Żygowski <michal.zygowski@3mdeb.com>
Gerrit-Attention: Angel Pons <th3fanbus@gmail.com>
Gerrit-MessageType: newchange