DDR2 memory DIMMs on the Axon could be accessed only as one partition when using file system drivers which are using the direct_access() method. This patch enables for such file system drivers to access Axon's DDR2 memory even if it is splitted in several partitions.
Signed-off-by: Maxim Shchetynin <[EMAIL PROTECTED]> Signed-off-by: Arnd Bergmann <[EMAIL PROTECTED]> --- arch/powerpc/sysdev/axonram.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c index 9b639ed..9e105cb 100644 --- a/arch/powerpc/sysdev/axonram.c +++ b/arch/powerpc/sysdev/axonram.c @@ -150,7 +150,10 @@ axon_ram_direct_access(struct block_device *device, sector_t sector, struct axon_ram_bank *bank = device->bd_disk->private_data; loff_t offset; - offset = sector << AXON_RAM_SECTOR_SHIFT; + offset = sector; + if (device->bd_part != NULL) + offset += device->bd_part->start_sect; + offset <<= AXON_RAM_SECTOR_SHIFT; if (offset >= bank->size) { dev_err(&bank->device->dev, "Access outside of address space\n"); return -ERANGE; -- 1.5.4.3 -- _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev