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From: Arnd Bergmann <arnd@arndb.de>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>
Subject: [PATCH 08/11] ARM: add io{read,write}{16,32}be functions
Date: Sat,  1 Oct 2011 21:21:57 +0200	[thread overview]
Message-ID: <1317496920-7764-9-git-send-email-arnd@arndb.de> (raw)
In-Reply-To: <1317496920-7764-1-git-send-email-arnd@arndb.de>

These functions are used in some PCI drivers with big-endian
MMIO space, and they are trivial to add here.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/include/asm/io.h |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index d66605d..bad7bfb 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -260,10 +260,16 @@ extern void _memset_io(volatile void __iomem *, int, size_t);
 #define ioread16(p)	({ unsigned int __v = le16_to_cpu((__force __le16)__raw_readw(p)); __iormb(); __v; })
 #define ioread32(p)	({ unsigned int __v = le32_to_cpu((__force __le32)__raw_readl(p)); __iormb(); __v; })
 
+#define ioread16be(p)	({ unsigned int __v = be16_to_cpu((__force __be16)__raw_readw(p)); __iormb(); __v; })
+#define ioread32be(p)	({ unsigned int __v = be32_to_cpu((__force __be32)__raw_readl(p)); __iormb(); __v; })
+
 #define iowrite8(v,p)	({ __iowmb(); (void)__raw_writeb(v, p); })
 #define iowrite16(v,p)	({ __iowmb(); (void)__raw_writew((__force __u16)cpu_to_le16(v), p); })
 #define iowrite32(v,p)	({ __iowmb(); (void)__raw_writel((__force __u32)cpu_to_le32(v), p); })
 
+#define iowrite16be(v,p) ({ __iowmb(); (void)__raw_writew((__force __u16)cpu_to_be16(v), p); })
+#define iowrite32be(v,p) ({ __iowmb(); (void)__raw_writel((__force __u32)cpu_to_be32(v), p); })
+
 #define ioread8_rep(p,d,c)	__raw_readsb(p,d,c)
 #define ioread16_rep(p,d,c)	__raw_readsw(p,d,c)
 #define ioread32_rep(p,d,c)	__raw_readsl(p,d,c)
-- 
1.7.5.4


  parent reply	other threads:[~2011-10-01 19:23 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-01 19:21 [PATCH 00/11] Generic ARM fixes for randconfig Arnd Bergmann
2011-10-01 19:21 ` [PATCH 01/11] ARM: export rtc_lock for nvram driver Arnd Bergmann
2011-10-02 15:21   ` Russell King - ARM Linux
2011-10-01 19:21 ` [PATCH 02/11] ARM: SMP depends on MMU Arnd Bergmann
2011-10-01 19:21 ` [PATCH 03/11] ARM: always use ARM_UNWIND for thumb2 kernels Arnd Bergmann
2011-10-01 19:21 ` [PATCH 04/11] ARM: allow building alignment.c without PROC_FS Arnd Bergmann
2011-10-01 19:21 ` [PATCH 05/11] ARM: vfp: use -mfloat-abi=soft to build vfp Arnd Bergmann
2011-10-03 14:04   ` Dave Martin
2011-10-01 19:21 ` [PATCH 06/11] ARM: pm: let platforms select cpu_suspend support Arnd Bergmann
2011-10-01 19:21 ` [PATCH 07/11] ARM: limit CONFIG_HAVE_IDE to platforms that do Arnd Bergmann
2011-10-01 19:21 ` Arnd Bergmann [this message]
2011-10-01 19:21 ` [PATCH 09/11] ARM: pci: always export pcibios_bus_to_resource Arnd Bergmann
2011-10-01 19:21 ` [PATCH 10/11] ARM: OC_ETM should not select ARM_AMBA Arnd Bergmann
2011-10-01 19:22 ` [PATCH 11/11] ARM: common/vic: use proper __iomem annotations Arnd Bergmann
2011-10-05  1:24   ` H Hartley Sweeten
2011-10-02 13:46 ` [PATCH 12/11] ARM: include linux/highmem.h in uaccess functions Arnd Bergmann
2011-10-02 15:36 ` [PATCH 00/11] Generic ARM fixes for randconfig Russell King - ARM Linux
2011-10-02 15:42   ` Arnd Bergmann
2011-10-02 15:47     ` Russell King - ARM Linux

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