19 Feb, 2014

9 commits


08 Feb, 2014

1 commit


07 Feb, 2014

20 commits


06 Feb, 2014

9 commits

  • Just extend tables with this new device.

    Signed-off-by: Michal Simek

    Michal Simek
     
  • When ARCH_DMA_MINALIGN is greater than header size of the bit file, and buf is
    not aligned, new_buf address became greater then buf_start address and the
    load_word loop corrupts bit file data.

    A work around is to decrease new_buf of ARCH_DMA_MINALIGN, it might corrupt data
    before buf but permits to load correctly.

    Signed-off-by: Stany MARCEL
    Signed-off-by: Michal Simek

    Novasys Ingenierie
     
  • The mv_udc is not marvell-specific anymore. The mv_udc is used to drive
    generic ChipIdea CI13xxx series OTG cores, so rename the driver to ci_udc
    instead.

    Signed-off-by: Marek Vasut
    Cc: Eric Nelson
    Cc: Stefano Babic

    Marek Vasut
     
  • Apparently debug memset (with a 0x55 value) has been overlooked in the
    f_thor code.

    Signed-off-by: Lukasz Majewski
    Cc: Marek Vasut

    Lukasz Majewski
     
  • Now it is possible to allocate static request - which receives data from
    the host (OUT transaction) to the size of THOR packet.

    Signed-off-by: Lukasz Majewski
    Cc: Marek Vasut

    Lukasz Majewski
     
  • The Samsung's UDC driver is not anymore copying data from USB requests to
    aligned internal buffers. Now it works directly in data allocated in the
    upper layers like UMS, DFU, THOR.

    This change is possible since those gadgets now must take care to allocate
    buffers aligned to cache line (CONFIG_SYS_CACHELINE_SIZE).

    This can be achieved by using DEFINE_CACHE_ALIGN_BUFFER() or
    ALLOC_CACHE_ALIGN_BUFFER() macros. Those take care to allocate buffer
    aligned to cache line in both starting address and its size.
    Sometimes it is enough to just use memalign() with size being a
    multiplication of cache line size.

    Test condition
    - test HW + measurement: Trats - Exynos4210 rev.1
    - test HW Trats2 - Exynos4412 rev.1
    400 MiB compressed rootfs image download with `thor 0 mmc 0`

    Measurement:
    Transmission speed: 27.04 MiB/s

    Signed-off-by: Lukasz Majewski
    Cc: Marek Vasut

    Lukasz Majewski
     
  • This patch removed obscure restriction on the HW setting of DMA transfers.
    Before this change each transaction sent up to 512 bytes (with packet count
    equal to 1) for non EP0 transfer.

    Now it is possible to setup DMA transaction up to DMA_BUFFER_SIZE.

    Test condition
    - test HW + measurement: Trats - Exynos4210 rev.1
    - test HW Trats2 - Exynos4412 rev.1
    400 MiB compressed rootfs image download with `thor 0 mmc 0`

    Measurement:
    Transmission speed: 20.74 MiB/s

    Signed-off-by: Lukasz Majewski
    Cc: Marek Vasut

    Lukasz Majewski
     
  • A set of cache operations (both invalidation and flush) were redundant
    in the S3C HS OTG Samsung driver:

    1. s3c_udc_ep0_zlp - to transmit EP0's ZLP packets one don't need to flush
    the cache (since it is the zero length transmission)

    2. s3c_udc_pre_setup and s3c_ep0_complete_out - cache invalidation is not
    needed when the buffer for OUT EP0 transmission is setup, since no data
    has yet arrived.

    Cache cleanups presented above don't contribute much to transmission speed
    up, hence shall be regarded as cosmetic changes.

    3. setdma_rx - here the s3c UDC driver's internal buffers were invalidated.
    This call is not needed anymore since we reuse the buffers passed from
    gadgets. This is a key contribution to transmission speed improvement.

    Test condition
    - test HW + measurement: Trats - Exynos4210 rev.1
    - test HW Trats2 - Exynos4412 rev.1
    400 MiB compressed rootfs image download with `thor 0 mmc 0`

    Measurements:

    Base values (without improvement):
    Transmission speed: 9.51 MiB/s

    After the change:
    Transmission speed: 10.15 MiB/s

    Signed-off-by: Lukasz Majewski
    Cc: Marek Vasut

    Lukasz Majewski
     
  • Calls to malloc() have been replaced by memalign. It now provides proper
    buffer alignment.

    Signed-off-by: Lukasz Majewski
    Cc: Marek Vasut

    Lukasz Majewski
     

05 Feb, 2014

1 commit