[RFC,07/13] arm64: Mark ARCH_MVEBU as needing broken 64bit MMIO support
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Message ID 20210226140305.26356-8-nsaenzjulienne@suse.de
State New, archived
Headers show
Series
  • Generic way of dealing with broken 64-bit buses
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Commit Message

Nicolas Saenz Julienne Feb. 26, 2021, 2:02 p.m. UTC
The bus AP806's IOMMU sits on can't handle 64bit MMIO accesses[1]. So
select 'ARCH_HAS_64BIT_MMIO_BROKEN' for the platform.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
[1] See Armada-AP806 erratum #582743
---
 arch/arm64/Kconfig.platforms | 1 +
 1 file changed, 1 insertion(+)

Patch
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diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index cdfd5fed457f..04a97cf486c5 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -175,6 +175,7 @@  config ARCH_MESON
 
 config ARCH_MVEBU
 	bool "Marvell EBU SoC Family"
+	select ARCH_HAS_64BIT_MMIO_BROKEN
 	select ARMADA_AP806_SYSCON
 	select ARMADA_CP110_SYSCON
 	select ARMADA_37XX_CLK