Messages in this thread Patch in this message | | | From | Taras Kondratiuk <> | Subject | [RFC 08/23] crypto: omap-aes - raw read and write endian fix | Date | Sat, 16 Nov 2013 02:01:11 +0200 |
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From: Victor Kamensky <victor.kamensky@linaro.org>
All OMAP IP blocks expect LE data, but CPU may operate in BE mode. Need to use endian neutral functions to read/write h/w registers. I.e instead of __raw_read[lw] and __raw_write[lw] functions code need to use read[lw]_relaxed and write[lw]_relaxed functions. If the first simply reads/writes register, the second will byteswap it if host operates in BE mode.
Changes are trivial sed like replacement of __raw_xxx functions with xxx_relaxed variant.
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org> Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org> --- drivers/crypto/omap-aes.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index ce791c2..777ae0a 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -195,7 +195,7 @@ static DEFINE_SPINLOCK(list_lock); #define omap_aes_read(dd, offset) \ ({ \ int _read_ret; \ - _read_ret = __raw_readl(dd->io_base + offset); \ + _read_ret = readl_relaxed(dd->io_base + offset); \ pr_debug("omap_aes_read(" #offset "=%#x)= %#x\n", \ offset, _read_ret); \ _read_ret; \ @@ -203,7 +203,7 @@ static DEFINE_SPINLOCK(list_lock); #else static inline u32 omap_aes_read(struct omap_aes_dev *dd, u32 offset) { - return __raw_readl(dd->io_base + offset); + return readl_relaxed(dd->io_base + offset); } #endif @@ -212,13 +212,13 @@ static inline u32 omap_aes_read(struct omap_aes_dev *dd, u32 offset) do { \ pr_debug("omap_aes_write(" #offset "=%#x) value=%#x\n", \ offset, value); \ - __raw_writel(value, dd->io_base + offset); \ + writel_relaxed(value, dd->io_base + offset); \ } while (0) #else static inline void omap_aes_write(struct omap_aes_dev *dd, u32 offset, u32 value) { - __raw_writel(value, dd->io_base + offset); + writel_relaxed(value, dd->io_base + offset); } #endif -- 1.7.9.5
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