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  1. 16 2月, 2010 1 次提交
  3. 17 12月, 2009 3 次提交
  5. 13 12月, 2009 3 次提交
    • C
      Add OMAP spi100k driver · 35c9049b
      由 Cory Maccarrone 提交于 
      This change adds the OMAP SPI 100k driver created by
Fabrice Crohas <fcrohas@gmail.com>.  This SPI bus is found on
OMAP7xx-series smartphones, and for many, the touchscreen is
attached to this bus.

The lion's share of the work was done by Fabrice on this driver --
I am merely porting it from the Linwizard project on his behalf.
Signed-off-by: NCory Maccarrone <darkstar6262@gmail.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
      35c9049b
    • W
      ARM: NUC900: Add spi driver support for nuc900 · 30eaed05
      由 Wan ZongShun 提交于 
      Signed-off-by: NWan ZongShun <mcuos.com@gmail.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
      30eaed05
    • M
      spi: SuperH MSIOF SPI Master driver V2 · 8051effc
      由 Magnus Damm 提交于 
      This patch is V2 of SPI Master support for the SuperH MSIOF.
Full duplex, spi mode 0-3, active high cs, 3-wire and lsb
first should all be supported, but the driver has so far
only been tested with "mmc_spi".

The MSIOF hardware comes with 32-bit FIFOs for receive and
transmit, and this driver simply breaks the SPI messages
into FIFO-sized chunks. The MSIOF hardware manages the pins
for clock, receive and transmit (sck/miso/mosi), but the chip
select pin is managed by software and must be configured as
a regular GPIO pin by the board code.

Performance wise there is still room for improvement, but
on a Ecovec board with the built-in sh7724 MSIOF0 this driver
gets Mini-sd read speeds of about half a megabyte per second.

Future work include better clock setup and merging of 8-bit
transfers into 32-bit words to reduce interrupt load and
improve throughput.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
      8051effc
  7. 09 12月, 2009 4 次提交
  9. 12 11月, 2009 1 次提交
  11. 05 11月, 2009 1 次提交
  13. 23 9月, 2009 5 次提交
  15. 20 6月, 2009 2 次提交
  17. 11 6月, 2009 1 次提交
  19. 21 5月, 2009 1 次提交
  21. 07 5月, 2009 1 次提交
  23. 27 1月, 2009 1 次提交
  25. 07 1月, 2009 1 次提交
    • D
      spi_gpio driver · d29389de
      由 David Brownell 提交于 
      Generalize the old at91rm9200 "bootstrap" bitbanging SPI master driver as
"spi_gpio", so it works with arbitrary GPIOs and can be configured through
platform_data.  Such SPI masters support:

 - any number of bus instances (bus_num is the platform_device.id)
 - any number of chipselects (one GPIO per spi_device)
 - all four SPI_MODE values, and SPI_CS_HIGH
 - i/o word sizes from 1 to 32 bits;
 - devices configured as with any other spi_master controller

When configured using platform_data, this provides relatively low clock
rates.  On platforms that support inlined GPIO calls, significantly
improved transfer speeds are also possible with a semi-custom driver.
(It's still painful when accessing flash memory, but less so.)

Sanity checked by using this version to replace both native controllers on
a board with six different SPI slaves, relying on three different
SPI_MODE_* values and both SPI_CS_HIGH settings for correct operation.

[akpm@linux-foundation.org: cleanups]
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Acked-by: NMagnus Damm <damm@igel.co.jp>
Tested-by: NMagnus Damm <damm@igel.co.jp>
Cc: Torgil Svensson <torgil.svensson@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      d29389de
  27. 06 8月, 2008 1 次提交
  29. 25 7月, 2008 1 次提交
  31. 13 5月, 2008 1 次提交
  33. 28 4月, 2008 1 次提交
  35. 07 2月, 2008 2 次提交
  37. 26 1月, 2008 1 次提交
    • E
      [ARM] pxa: make pxa2xx_spi driver use ssp_request()/ssp_free() · 2f1a74e5
      由 eric miao 提交于 
      1. make pxa2xx_spi.c use ssp_request() and ssp_free() to get the common
   information of the designated SSP port.

2. remove those IRQ/memory request code, ssp_request() has done that for
   the driver

3. the SPI platform device is thus made psuedo, no resource (memory/IRQ)
   has to be defined, all will be retreived by ssp_request()

4. introduce ssp_get_clk_div() to handle controller difference in clock
   divisor setting

5. use clk_xxx() API for clock enable/disable, and clk_get_rate() to
   handle the different SSP clock frequency between different processors
Signed-off-by: Neric miao <eric.miao@marvell.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
      2f1a74e5
  39. 23 11月, 2007 1 次提交
  41. 17 10月, 2007 1 次提交
  43. 18 7月, 2007 6 次提交