[PATCH 1/2] mtd mxc_nand: use 32bit copy functions
Artem Bityutskiy
artem.bityutskiy at linux.intel.com
Fri May 25 10:58:22 EDT 2012
On Fri, 2012-05-25 at 16:22 +0200, Sascha Hauer wrote:
> The following commit changes the function used to copy from/to
> the hardware buffer to memcpy_[from|to]io. This does not work
> since the hardware cannot handle the byte accesses used by these
> functions. Instead of reverting this patch introduce 32bit
> correspondents of these functions.
Could you please take a look at the checkpatch.pl updates?
WARNING:LONG_LINE: line over 80 characters
#103: FILE: drivers/mtd/nand/mxc_nand.c:276:
+static void memcpy32_fromio(void *trg, const volatile void __iomem *src, size_t size)
WARNING:VOLATILE: Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt
#103: FILE: drivers/mtd/nand/mxc_nand.c:276:
+static void memcpy32_fromio(void *trg, const volatile void __iomem *src, size_t size)
WARNING:VOLATILE: Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt
#107: FILE: drivers/mtd/nand/mxc_nand.c:280:
+ const volatile u32 *s = src;
WARNING:VOLATILE: Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt
#113: FILE: drivers/mtd/nand/mxc_nand.c:286:
+static void memcpy32_toio(volatile void __iomem *trg, const void *src, int size)
WARNING:VOLATILE: Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt
#116: FILE: drivers/mtd/nand/mxc_nand.c:289:
+ volatile u32 *t = trg;
WARNING:LONG_LINE: line over 80 characters
#170: FILE: drivers/mtd/nand/mxc_nand.c:1093:
+ memcpy32_fromio(host->data_buf, host->main_area0, mtd->writesize);
--
Best Regards,
Artem Bityutskiy
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