linux-kernel - [RFC 11/13] arm64: Mark ARCH_BCM2835 as needing broken 64bit MMIO support

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Message-Id: <20210226140305.26356-12-nsaenzjulienne@suse.de>
Date:   Fri, 26 Feb 2021 15:03:03 +0100
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     f.fainelli@...il.com, robh+dt@...nel.org, robin.murphy@....com,
        ardb@...nel.org, hch@...radead.org, narmstrong@...libre.com,
        dwmw2@...radead.org, linux@...linux.org.uk,
        catalin.marinas@....com, arnd@...db.de, will@...nel.org,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
Subject: [RFC 11/13] arm64: Mark ARCH_BCM2835 as needing broken 64bit MMIO support

The PCIe bus present in BCM2711 can't handle 64bit accesses on device
memory. So select 'ARCH_HAS_64BIT_MMIO_BROKEN.'

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
---
 arch/arm64/Kconfig.platforms | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 04a97cf486c5..0178a46cc10a 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -38,6 +38,7 @@ config ARCH_ALPINE
 
 config ARCH_BCM2835
 	bool "Broadcom BCM2835 family"
+	select ARCH_HAS_64BIT_MMIO_BROKEN
 	select TIMER_OF
 	select GPIOLIB
 	select MFD_CORE
-- 
2.30.1