linux-kernel - [RESEND PATCH] arm: Enlarge IO_SPACE

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Date:   Sat,  8 May 2021 19:55:35 +0200
From:   Ansuel Smith <ansuelsmth@...il.com>
To:     Russell King <linux@...linux.org.uk>
Cc:     Ansuel Smith <ansuelsmth@...il.com>, stable@...r.kernel.org,
        Palmer Dabbelt <palmerdabbelt@...gle.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [RESEND PATCH] arm: Enlarge IO_SPACE_LIMIT needed for some SoC

Ipq8064 SoC requires larger IO_SPACE_LIMIT or second and third pci port
fails to register the IO addresses and connected device doesn't work.

Cc: <stable@...r.kernel.org> # 4.9+
Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
---
 arch/arm/include/asm/io.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index fc748122f1e0..6f3e89f08bd8 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -197,7 +197,7 @@ void __iomem *pci_remap_cfgspace(resource_size_t res_cookie, size_t size);
 #ifdef CONFIG_NEED_MACH_IO_H
 #include <mach/io.h>
 #elif defined(CONFIG_PCI)
-#define IO_SPACE_LIMIT	((resource_size_t)0xfffff)
+#define IO_SPACE_LIMIT	((resource_size_t)0xffffff)
 #define __io(a)		__typesafe_io(PCI_IO_VIRT_BASE + ((a) & IO_SPACE_LIMIT))
 #else
 #define __io(a)		__typesafe_io((a) & IO_SPACE_LIMIT)
-- 
2.30.2