linux-toradex.git/drivers/mtd/maps, branch tegra-next

E1853 BRINGUP Linux Snor: Micron Support

2012-08-29T01:11:35+00:00

Expanding NOR functionality to work with ADMUX and Burst mode for Micron
Support in E1853.

Bug 989919
Bug 966833
- Adding fields for picking MUX vs NONMUX and picking Async, Paging,
Burst mode for reads
- Added run time decision between them
- 1853 specific settings for Async NOR
- 1852 specific settings for NOR
- 1853 NOR timings changed

Reviewed-on: http://git-master/r/122286
(cherry picked from commit a242e7194c7de559d22fe5b275a8782086f10e50)
Change-Id: I79de1d52d4c7199c83b380c2fa6d8cae6b35f09d
Signed-off-by: Bob Johnston 
Reviewed-on: http://git-master/r/124946
Tested-by: Bob Johnston 
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sumeet Gupta 
Reviewed-by: Varun Wadekar

mtd: tegra-nor: treat warnings as errors

2012-08-13T21:49:52+00:00

add compilation flag to treat warnings as errors
handle error of variable declaration

bug 949219

Change-Id: Iac05d4d0e4c4cbf39a534b7aee32c0dac57ae49d
Signed-off-by: Deepak Nibade 
Reviewed-on: http://git-master/r/118027
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sanjay Singh Rawat 
Reviewed-by: Sri Krishna Chowdary 
Reviewed-by: Manoj Chourasia 
Reviewed-by: Bharat Nihalani

mtd: tegra-nor: Fix dma/cpu coherency issues

2012-06-13T08:24:53+00:00

Call dma sync single api's to maintain coherency between
CPU, dma and device in data transfers.

bug 984029
bug 980884

Change-Id: I50b5a24a7ce482f473670347af3c75d6975c6060
Signed-off-by: Manoj Chourasia 
Reviewed-on: http://git-master/r/105917
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Varun Wadekar

Arm: Tegra: Nor: use timing1 proper value

2012-05-11T00:18:13+00:00

timing1_read was initialized with timing0 from nor platform data
changed the same to use timing1 from platform data instead of
timing0

Bug 934187

Change-Id: I04c41323de25fb2bb53dac91301cee9c0820707a
Signed-off-by: Mohit Kataria 
Reviewed-on: http://git-master/r/95293
Reviewed-on: http://git-master/r/100904
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Amlan Kundu 
Reviewed-by: Varun Wadekar

mtd: tegra-nor: Use staged read from NOR

2012-02-17T15:44:02+00:00

Most of the large read requests passed by upper MTD block
layer are for highmem region which dma_map_single cannot
handle. Those requests were getting serviced by memcpy_fromio,
this was degrading performance. Moreover the memory region
passed to dma_map_single should be on cache line boundaries.
If the requirement is not met then system may crash due
to cache incoherency.

The approach added in this patch is to have a DMA coherent
memory buffer. Read device via DMA to this coherent buffer
and them memcpy it to user space pointer. This not only
fixes some bugs but also enhances the NOR read performance.

bug 928788
bug 898250

Signed-off-by: Manoj Chourasia 
Reviewed-on: http://git-master/r/76866
(cherry picked from commit 1491c0461a627c3bb63b01e126585eff9922ba1a)

Change-Id: Ic8e24d2cc965f84bb97d2b6b29f27458aba17720
Reviewed-on: http://git-master/r/84026
Tested-by: Manoj Chourasia 
Reviewed-by: Varun Wadekar

mtd: tegra-nor: Replace add_mtd_device with mtd_device_register()

2012-02-13T14:24:23+00:00

The older add_mtd_device()/add_mtd_partitions() and
their removal are depricated. Replace uses with
mtd_device_register() and mtd_device_unregister().

bug 923135

Change-Id: I03790072d95ac27b4f11a6c522bb5d9de087a0df
Signed-off-by: Manoj Chourasia 
Reviewed-on: http://git-master/r/83073
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Preetham Chandru 
Reviewed-by: Sandeep Trasi 
Reviewed-by: Varun Wadekar

tegra: nor: always build partitioning support

2012-01-20T00:27:05+00:00

Remove the CONFIG_MTD_PARTITIONS preprocessor conditionals as
partitioning is always available.
Moreover as none of the drivers use CONFIG_MTD_PARTITIONS, this has
been undefined in Kconfig from 2.6.39 onwords.
The following commit 6a8a98b22b10f1560d5f90aded4a54234b9b2724 has
removed the CONFIG_MTD_PARTITIONS in Kconfig.

Bug: 923135
Change-Id: I8acb6ac2df26d9983b4cfe5869bc97a5861da573
Signed-off-by: Preetham Chandru R 
Reviewed-on: http://git-master/r/75895
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Shashank Sharma 
Reviewed-by: Kiran Adduri 
Reviewed-by: Varun Wadekar

tegra: nor: Add NOR mapping driver.

2011-12-15T06:41:08+00:00

This patch adds NOR mapping driver for tegra2 and tegra3.

Signed-off-by: Manoj Chourasia

Change-Id: Ie773d024a49977e356d4a9d605910ca30f22a3f3
Reviewed-on: http://git-master/r/43566
Reviewed-on: http://git-master/r/62149
Tested-by: Manoj Chourasia 
Reviewed-by: Stephen Warren 
Reviewed-by: Dan Willemsen

treewide: Convert uses of struct resource to resource_size(ptr)

2011-06-10T12:55:36+00:00

Several fixes as well where the +1 was missing.

Done via coccinelle scripts like:

@@
struct resource *ptr;
@@

- ptr->end - ptr->start + 1
+ resource_size(ptr)

and some grep and typing.

Mostly uncompiled, no cross-compilers.

Signed-off-by: Joe Perches 
Signed-off-by: Jiri Kosina

Merge git://git.infradead.org/mtd-2.6

2011-05-28T03:06:53+00:00

* git://git.infradead.org/mtd-2.6: (97 commits)
  mtd: kill CONFIG_MTD_PARTITIONS
  mtd: remove add_mtd_partitions, add_mtd_device and friends
  mtd: convert remaining users to mtd_device_register()
  mtd: samsung onenand: convert to mtd_device_register()
  mtd: omap2 onenand: convert to mtd_device_register()
  mtd: txx9ndfmc: convert to mtd_device_register()
  mtd: tmio_nand: convert to mtd_device_register()
  mtd: socrates_nand: convert to mtd_device_register()
  mtd: sharpsl: convert to mtd_device_register()
  mtd: s3c2410 nand: convert to mtd_device_register()
  mtd: ppchameleonevb: convert to mtd_device_register()
  mtd: orion_nand: convert to mtd_device_register()
  mtd: omap2: convert to mtd_device_register()
  mtd: nomadik_nand: convert to mtd_device_register()
  mtd: ndfc: convert to mtd_device_register()
  mtd: mxc_nand: convert to mtd_device_register()
  mtd: mpc5121_nfc: convert to mtd_device_register()
  mtd: jz4740_nand: convert to mtd_device_register()
  mtd: h1910: convert to mtd_device_register()
  mtd: fsmc_nand: convert to mtd_device_register()
  ...

Fixed up trivial conflicts in
 - drivers/mtd/maps/integrator-flash.c: removed in ARM tree
 - drivers/mtd/maps/physmap.c: addition of afs partition probe type
   clashing with removal of CONFIG_MTD_PARTITIONS