[S] Change in coreboot[master]: allocator_v4: Disable top-down mode by default

[Nico Huber (Code Review)]

Nico Huber has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/67328 )

Change subject: allocator_v4: Disable top-down mode by default
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allocator_v4: Disable top-down mode by default

The top-down allocation feature was merged prematurely before
platforms that don't report their resources correctly were fixed.

Let's turn it off by default.

Change-Id: I982e6d7355b9e689de10357d6c16ed718705270e
Signed-off-by: Nico Huber 
---
M src/device/Kconfig
1 file changed, 19 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/28/67328/1

diff --git a/src/device/Kconfig b/src/device/Kconfig
index 8d10c17f..ea42d6f 100644
--- a/src/device/Kconfig
+++ b/src/device/Kconfig
@@ -935,8 +935,11 @@

config RESOURCE_ALLOCATION_TOP_DOWN
    bool "Allocate resources from top down" if !PCIEXP_HOTPLUG_PREFETCH_MEM_ABOVE_4G
-	default y
+	default n
    depends on RESOURCE_ALLOCATOR_V4
+	help
+	  Should be the default, but many platforms don't report resources
+	  correctly. Hence, the allocator might cause conflicts.

config XHCI_UTILS
    def_bool n