1. 18 6月, 2013 1 次提交
  2. 17 5月, 2013 1 次提交
  3. 30 4月, 2013 1 次提交
    • P
      misc: generic on-chip SRAM allocation driver · 4984c6f5
      Philipp Zabel 提交于
      This driver requests and remaps a memory region as configured in the
      device tree.  It serves memory from this region via the genalloc API.  It
      optionally enables the SRAM clock.
      
      Other drivers can retrieve the genalloc pool from a phandle pointing to
      this drivers' device node in the device tree.
      
      The allocation granularity is hard-coded to 32 bytes for now, to make the
      SRAM driver useful for the 6502 remoteproc driver.  There is overhead for
      bigger SRAMs, where only a much coarser allocation granularity is needed:
      At 32 bytes minimum allocation size, a 256 KiB SRAM needs a 1 KiB bitmap
      to track allocations.
      
      [akpm@linux-foundation.org: fix Kconfig text, make sram_init static]
      Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
      Reviewed-by: NShawn Guo <shawn.guo@linaro.org>
      Acked-by: NGrant Likely <grant.likely@secretlab.ca>
      Tested-by: NMichal Simek <monstr@monstr.eu>
      Cc: Dong Aisheng <dong.aisheng@linaro.org>
      Cc: Fabio Estevam <fabio.estevam@freescale.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Huang Shijie <shijie8@gmail.com>
      Cc: Javier Martin <javier.martin@vista-silicon.com>
      Cc: Matt Porter <mporter@ti.com>
      Cc: Michal Simek <monstr@monstr.eu>
      Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
      Cc: Rob Herring <rob.herring@calxeda.com>
      Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      4984c6f5