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-rw-r--r--arch/tile/Kconfig6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index cf4bb69ea8e5..932e4430f7f3 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -406,6 +406,12 @@ config TILE_USB
Provides USB host adapter support for the built-in EHCI and OHCI
interfaces on TILE-Gx chips.
+# USB OHCI needs the bounce pool since tilegx will often have more
+# than 4GB of memory, but we don't currently use the IOTLB to present
+# a 32-bit address to OHCI. So we need to use a bounce pool instead.
+config NEED_BOUNCE_POOL
+ def_bool USB_OHCI_HCD
+
config HOTPLUG
bool "Support for hot-pluggable devices"
---help---