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authorAlexander Couzens <lynxis@fe80.eu>2016-04-10 23:19:18 +0200
committerMartin Roth <martinroth@google.com>2016-04-20 00:26:06 +0200
commit0793afe913a78990b1f4b3fff037eae5365f1078 (patch)
treefb051018dd30717f21c7fe2a2a80785bf7104d90 /src/mainboard/lenovo/x220
parenta53958098e3ba2701b071a3a7158200da6a2eddc (diff)
downloadcoreboot-0793afe913a78990b1f4b3fff037eae5365f1078.tar.xz
mb/lenovo/x220: disable ME
The ME hangs, the lspci shows no memory and the linux kernel tries to request irq 0 twice. After suspend-resume the linux kernel warns about double used irq. genirq: Flags mismatch irq 0. 00000080 (mei_me) vs. 00015a00 (timer) mei_me 0000:00:16.0: request_threaded_irq failed: irq = 0. dpm_run_callback(): pci_pm_resume+0x0/0xa0 returns -16 PM: Device 0000:00:16.0 failed to resume async: error -16 Change-Id: I56ef66388e58dddcfb858294ba274621c55fbef6 Signed-off-by: Alexander Couzens <lynxis@fe80.eu> Reviewed-on: https://review.coreboot.org/14309 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Diffstat (limited to 'src/mainboard/lenovo/x220')
-rw-r--r--src/mainboard/lenovo/x220/devicetree.cb4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/mainboard/lenovo/x220/devicetree.cb b/src/mainboard/lenovo/x220/devicetree.cb
index 9f25658a5e..6f84acd00a 100644
--- a/src/mainboard/lenovo/x220/devicetree.cb
+++ b/src/mainboard/lenovo/x220/devicetree.cb
@@ -71,9 +71,7 @@ chip northbridge/intel/sandybridge
register "c2_latency" = "101" # c2 not supported
register "p_cnt_throttling_supported" = "1"
- device pci 16.0 on
- subsystemid 0x17aa 0x21db
- end # Management Engine Interface 1
+ device pci 16.0 off end # Management Engine Interface 1
device pci 16.1 off end # Management Engine Interface 2
device pci 16.2 off end # Management Engine IDE-R
device pci 16.3 off end # Management Engine KT