From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Cernekee Subject: [PATCH 2/2] m32r: Add missing big-endian I/O accessors Date: Thu, 27 Nov 2014 09:46:44 -0800 Message-ID: <1417110404-13297-2-git-send-email-cernekee@gmail.com> References: <1417110404-13297-1-git-send-email-cernekee@gmail.com> Return-path: In-Reply-To: <1417110404-13297-1-git-send-email-cernekee@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: grant.likely@linaro.org Cc: kbuild-all@01.org, gregkh@linuxfoundation.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: devicetree@vger.kernel.org m32r doesn't use GENERIC_IOMAP, and it doesn't currently implement e.g. ioread32be() on its own. Add definitions to to fix build failures in common drivers that use these functions. drivers/tty/serial/8250/8250_core.c: In function 'mem32be_serial_out': >> drivers/tty/serial/8250/8250_core.c:434:2: error: implicit declaration of function 'iowrite32be' [-Werror=implicit-function-declaration] iowrite32be(value, p->membase + offset); ^ drivers/tty/serial/8250/8250_core.c: In function 'mem32be_serial_in': >> drivers/tty/serial/8250/8250_core.c:440:2: error: implicit declaration of function 'ioread32be' [-Werror=implicit-function-declaration] return ioread32be(p->membase + offset); ^ cc1: some warnings being treated as errors Compile-tested only. Signed-off-by: Kevin Cernekee --- arch/m32r/include/asm/io.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h index 343ae4c..5fb2ad8 100644 --- a/arch/m32r/include/asm/io.h +++ b/arch/m32r/include/asm/io.h @@ -4,6 +4,7 @@ #include #include #include /* __va */ +#include #ifdef __KERNEL__ @@ -169,6 +170,11 @@ static inline void _writel(unsigned long l, unsigned long addr) #define iowrite16 writew #define iowrite32 writel +#define ioread16be(addr) be16_to_cpu(readw(addr)) +#define ioread32be(addr) be32_to_cpu(readl(addr)) +#define iowrite16be(val, addr) writew(cpu_to_be16(val), addr) +#define iowrite32be(val, addr) writel(cpu_to_be32(val), addr) + #define mmiowb() #define flush_write_buffers() do { } while (0) /* M32R_FIXME */ -- 2.1.0