Hello, I wrote:
+static void mm_insw_swap(unsigned long port, void *addr, u32 count) +{ + unsigned short *ptr = addr; + unsigned long size = count * 2; + port &= ~1; + while (count--) + *ptr++ = le16_to_cpu(__raw_readw((void __iomem *)port)); + __ide_flush_dcache_range((unsigned long)addr, size); +} +static void mm_outsw_swap(unsigned long port, void *addr, u32 count) +{ + unsigned short *ptr = addr; + unsigned long size = count * 2; + port &= ~1; + while (count--) { + __raw_writew(cpu_to_le16(*ptr), (void __iomem *)port); + ptr++; + } + __ide_flush_dcache_range((unsigned long)addr, size); +}Hum... but is it really correct to convert from/to LE order above? I'm prett sure that data is expected in LE order -- look ar ide_fix_driveid() for example...
Assuming that the IDE data words' MSB appears at offset 6 and LSB at offset 7 (which would seem logical), the data is actually in BE (CPU) orger, so
mm_insw_swap() should use cpu_to_le16() and mm_outsw_swap() le16_to_cpu()... MBR, Sergei
