[LEDE-DEV] [PATCH] x86: Fix xen serial console by removing conflicting PATA driver

[Baptiste Jonglez]

From: Baptiste Jonglez <git at bitsofnetworks.org>

The Xen serial console has been broken since the xen_domu subtarget
was merged in the generic x86 subtarget (commits 1d6879ee and 371b382a).

The reason for the broken serial console seems to be an IRQ conflict
between the serial console driver and the PATA_LEGACY driver:

[    1.330125] genirq: Flags mismatch irq 8. 00000000 (hvc_console) vs. 00000000 (platform[pata_legacy.4])
[    1.330134] hvc_open: request_irq failed with rc -16.
[    1.330148] Warning: unable to open an initial console.

Just drop the PATA_LEGACY driver from the x86/generic and x86_64
subtargets, since this driver is marked experimental and only supports
very old ISA devices anyway.  It is still included in the x86/legacy
subtarget where it rightfully belongs.

Fixes: FS#787

Signed-off-by: Baptiste Jonglez <git at bitsofnetworks.org>
---
 target/linux/x86/64/config-default      | 1 -
 target/linux/x86/generic/config-default | 1 -
 2 files changed, 2 deletions(-)

diff --git a/target/linux/x86/64/config-default b/target/linux/x86/64/config-default
index 1950213b16..79607efd34 100644
--- a/target/linux/x86/64/config-default
+++ b/target/linux/x86/64/config-default
@@ -233,7 +233,6 @@ CONFIG_PARAVIRT_CLOCK=y
 CONFIG_PARAVIRT_SPINLOCKS=y
 CONFIG_PATA_AMD=y
 CONFIG_PATA_ATIIXP=y
-CONFIG_PATA_LEGACY=y
 CONFIG_PATA_MPIIX=y
 CONFIG_PATA_OLDPIIX=y
 CONFIG_PATA_PLATFORM=y
diff --git a/target/linux/x86/generic/config-default b/target/linux/x86/generic/config-default
index a2c8db33c9..7f10310638 100644
--- a/target/linux/x86/generic/config-default
+++ b/target/linux/x86/generic/config-default
@@ -274,7 +274,6 @@ CONFIG_PARAVIRT_SPINLOCKS=y
 # CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
 CONFIG_PATA_AMD=y
 CONFIG_PATA_ATIIXP=y
-CONFIG_PATA_LEGACY=y
 CONFIG_PATA_MPIIX=y
 CONFIG_PATA_OLDPIIX=y
 CONFIG_PATA_PLATFORM=y
-- 
2.13.3