Philipp Zabel
4984c6f5e5
misc: generic on-chip SRAM allocation driver ...
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: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Michal 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: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-29 18:28:13 -07:00
misc/c2port: convert to idr_alloc()
2013-02-27 19:10:17 -08:00
dmaengine: remove dma_async_memcpy_pending() macro
2013-01-07 22:05:09 -08:00
drivers/misc/cb710: add missing GENERIC_HARDIRQS dependency
2013-02-08 12:23:53 -08:00
misc: eeprom_93xx46: use spi_get_drvdata() and spi_set_drvdata()
2013-04-05 15:38:31 -07:00
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
misc: remove use of __devexit
2012-11-21 12:53:32 -08:00
mei: fix krealloc() misuse in in mei_cl_irq_read_msg()
2013-04-23 10:29:58 -07:00
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
SGI-XP: handle non-fatal traps
2012-12-20 17:40:20 -08:00
Char/Misc driver patches for 3.9-rc1
2013-02-21 13:57:13 -08:00
Merge branch 'char-misc-linus' into char-misc-next
2013-03-26 16:09:30 -07:00
misc: remove use of __devexit
2012-11-21 12:53:32 -08:00
misc: remove use of __devexit
2012-11-21 12:53:32 -08:00
misc: remove use of __devinit
2012-11-21 12:51:53 -08:00
Merge branch 'char-misc-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2012-01-09 12:08:59 -08:00
misc: apds990x: add CONFIG_PM_SLEEP to suspend/resume functions
2013-03-29 08:50:52 -07:00
misc: apds9802als: Fix suspend/resume
2013-04-11 12:39:02 -07:00
misc: arm-charlcd: use module_platform_driver_probe()
2013-03-15 11:10:49 -07:00
Driver core patches for 3.9-rc1
2013-02-21 12:05:51 -08:00
misc: atmel_pwm: use module_platform_driver_probe()
2013-03-15 11:10:49 -07:00
ARM: at91/tc/clocksource: Add 32 bit variant to Timer Counter
2012-03-01 13:38:49 +01:00
misc: bh1770glc: add CONFIG_PM_SLEEP to suspend/resume functions
2013-03-29 08:50:51 -07:00
misc: bh1780gli: add CONFIG_PM_SLEEP to suspend/resume functions
2013-03-29 08:50:51 -07:00
misc: remove use of __devinit
2012-11-21 12:51:53 -08:00
misc: remove use of __devinit
2012-11-21 12:51:53 -08:00
misc: remove use of __devinit
2012-11-21 12:51:53 -08:00
misc: add support for bmp18x chips to the bmp085 driver
2012-04-18 14:57:14 -07:00
cs5535-mfgpt: Fix quotation marks
2013-04-03 11:23:13 -07:00
MISC: convert drivers/misc/* to use module_i2c_driver()
2012-01-24 16:31:49 -08:00
dummy-irq: introduce a dummy IRQ handler driver
2013-03-25 13:22:32 -07:00
misc: ep93xx_pwm: use module_platform_driver_probe()
2013-03-15 11:10:49 -07:00
misc: fsa8480: Use dev_pm_ops
2013-04-11 12:39:02 -07:00
MISC: convert drivers/misc/* to use module_i2c_driver()
2012-01-24 16:31:49 -08:00
misc: remove use of __devinit
2012-11-21 12:51:53 -08:00
misc: hpilo: increase number of max supported channels
2012-06-14 17:22:12 -07:00
MISC: convert drivers/misc/* to use module_i2c_driver()
2012-01-24 16:31:49 -08:00
misc: remove use of __devexit
2012-11-21 12:53:32 -08:00
misc: isl29003: Use dev_pm_ops
2013-04-11 12:39:02 -07:00
MISC: convert drivers/misc/* to use module_i2c_driver()
2012-01-24 16:31:49 -08:00
misc: generic on-chip SRAM allocation driver
2013-04-29 18:28:13 -07:00
kgdb/kgdbts: support ppc64
2013-03-02 08:52:17 -06:00
misc: lattice-ecp3-config: use spi_get_drvdata()
2013-04-05 15:38:31 -07:00
drivers/misc/lkdtm.c: fix missing allocation failure check
2012-07-30 17:25:22 -07:00
misc: generic on-chip SRAM allocation driver
2013-04-29 18:28:13 -07:00
misc: remove use of __devexit
2012-11-21 12:53:32 -08:00
misc: remove use of __devexit
2012-11-21 12:53:32 -08:00
TTY/Serial merge for 3.8-rc1
2012-12-11 14:08:47 -08:00
misc: remove use of __devexit
2012-11-21 12:53:32 -08:00
misc: generic on-chip SRAM allocation driver
2013-04-29 18:28:13 -07:00
misc: remove use of __devexit
2012-11-21 12:53:32 -08:00
tifm: use module_pci_driver
2012-09-05 14:10:29 -07:00
misc/tifm_core: convert to idr_alloc()
2013-02-27 19:10:17 -08:00
misc: tsl2550: Use dev_pm_ops
2013-04-11 12:39:02 -07:00
vmw_balloon: fix for a -Wuninitialized warning
2012-02-02 16:28:13 -08:00
4984c6f5e5