cherry-picked from U-Boot.
commit 69716c1900274a89bd5cbd1b0bb276ceaaa04f61
Author: Jason Kridner <jkridner@beagleboard.org>
Date: Wed Apr 20 08:54:16 2011 -0500
USB: Remove __attribute__ ((packed)) for struct ehci_hccr and ehci_hcor
Remove __attribute__ ((packed)) to prevent byte access to soc
registers in some gcc versions.
Having patches to enable ehci for the BeagleBoard lying around for
several months, this one was the show-stopper.
Switched to align(4), rather than remove the attribute, per suggestion
from Alexander.
Credits have to go to Laine Walker-Avina <lwalkera@ieee.org> for
finding the problem.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
commit 30de24d79fc6e659d0070f6e863ae0e53567ba0e param: add config to disable it
removes param support for xloader configurations. Set param eccmode calls
omap_gpmc_eccmode and so nand_scan_tail. So nand fails without param support
Call omap_gpmc_eccmode directly if CONFIG_PARAMETER is not enabled
to fix that.
Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
in commit commit f60f6c58e
atmel_mci: check for device id we use to address the right slot
the driver use the dev_id to detect the slot which is wrong on 9263 as we have
2 devices with 2 slots
use slot_b paramter to specify the slot as done in linux
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Support added for ioctl of ECCGETSTATS and MEMGETREGIONINFO.
Fix default handling in core.c to return -EINVAL, if request
was unknown.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Without num_modes the imx fb driver won't work. Specify this
in the boards and also bail out in the driver when num_modes
is unspecified.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Change dependencies in Kconfig for twl devices.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- add a usbserial command to enable/disable the serial gadget
- allow dfu and usbserial to cohexist in the same barebox
- add a timeout in u_serial so that we don't get locked if the user
enable usbserial from a UART console but doesn't consume the data
on the usbserial port created on the PC
- remove debug or verbose printf
- tested on i.MX25 & i.MX35 & usb-a926x
Signed-off-by: Eric Bénard <eric@eukrea.com>
Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- bwPollTimeout is set to 10 ms, from the DFU spec, this
is the minimum time, in milliseconds, that the host should
wait before sending a subsequent DFU_GETSTATUS request.
Without this, I get 25 seconds value and dfu-util waits twice 25s
during download
- when in IDLE and receiving DETACH, first return 0 to make
dfu-util happy, then use a dfudetach variable to exit dfu
(without an USB reset as per the comment on line 425) and
return to runtime mode.
- tested on i.MX25 & i.MX35 & usb-a926x
Signed-off-by: Eric Bénard <eric@eukrea.com>
Tested-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- this patch sync fsl_udc.c with linux's driver,
- add a poller on usb_gadget_poll to get serial gadget working,
- return -EIO in usb_gadget_poll when udc is stopped (do detect
cable disonnection)
- tested on i.MX25 & i.MX35
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
While we are here: do not follow the change of the file name, because there is
no GPIO dependency in this driver.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Commit 88ce7ef769 has changed the API and commit
b29b8f43d5 has moved the S3C24xx NAND driver
file. With the move the API change in the S3C24xx NAND driver was lost.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Commit 88ce7ef769 introduces an additional
parameter to the function add_mtd_device(). It seems one of the callers was
left.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
To get rid of:
(MTD_OOB_DEVICE && MTD_RAW_DEVICE) selects NAND_READ_OOB which has unmet direct dependencies (MTD && NAND)
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The UART is one of the units which differs only slightly inside the S3C family.
Prepare this driver to share it with more recent CPUs.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There are major differences in the clock tree of the S3C24xx family and the
more recent CPUs of the S3C family. Keep the S3C24XX clock routines separate to
avoid an ifdef hell. But also use generic function names to be able to
share drivers among the S3C family.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This LCD driver is for the LCD controller in the S3C2410/S3C2440 CPUs only.
Change its name to reflect its usage and free the way to add LCD controller
drivers for more recent Samsung CPUs.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The aready existing NAND controller driver in Barebox is for the S3C24XX family
only. Change the name of the file to reflect this fact (and free the way to add
more recent Samsung NAND controllers)
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Start with renaming files to share them in the S3C CPU family,
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Bit errors in the ECC itself are not beeing taken into account.
In this cases the number of detected errors != number of corrected errors and
chien search returns an error.
This patch adds detection of bit errors in the ECC.
Signed-off-by: Steve Schefter <steve@scheftech.com>
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The clock rate was incorrectly calculated, leading to a
frequency of 19.5MHz / 64 instead of 19.5Mz for the host
controller.
with the fix applied, a copy of a file of 230 kB shrinks
from 6000ms to 123ms.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add the MSystem disk-on-chip G3 support, taken from the
linux kernel with few amendments to bring it into barebox.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
For PIO NAND access functions, we use the features of the SMC:
- no need to take into account the NAND bus width: SMC will deal with this
- use of an IO memcpy on the NAND chip-select space is able to generate
proper SMC behavior.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
introduced in commit f76ad819e4
drivers/mtd: cosmetic changes
it's supposed to the invert of the writesize - 1
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The flags in struct console_device have to be initialized
to zero. Otherwise the following can happen:
- console_register sets the initial baudrate of a new console
before we set the global console init state to CONSOLE_INIT_FULL.
- In console_baudrate_set we test whether the current console is
active which may be true because of unitialized flags.
- we then call getc() to wait for the user to accept the new settings
and we are stuck because of the CONSOLE_UNINITIALIZED state
we will never get anything from getc().
Looking back this explains some cases for me when barebox refused
to start and I really wonder why this did not become a more visible
problem before.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add a device to read and write to MTD data and oob
(/dev/mtdraw<N>).
The device is constrained in a separate source file, so that
further improvement of commands (such as nandwrite) could
make it useless, and easy to remove.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Split /dev/mtd and /dev/mtdoob devices.
Remove from mtd structure the mtdoob character device.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
If multiple MTD devices were registered, an exception
occured, as they all wanted id 0. Let the driver code choose
the device number dynamically.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Change NAND_WRITE into MTD_WRITE.
Change "page_shift" references in the core, which are purely
NAND, into mtd->writesize which is MTD generic.
Rename all "info" (struct mtd_info) into "mtd".
Also provide a parameter to add_mtd_device() so that legacy
nand devices still appear as nand<N>.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Fix whitespace, replace all debug() by dev_dbg(), and fix
line length to 80 characters.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Support the setup of the mmc voltage, when booting OMAP4 with twl6030
from nand.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add a general twl device driver twlcore to call i2c send/write
functions.
Abstract twl4030 to call twlcore functions.
Fixed some code-styling issues pointed out by checkpatch.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Added i2c support for omap4. Tested on pcm049.
Driver based on linux kernel implementation.
Also added a shift to access 16-bit registers
to make support for OMAP730/850 possible.
If accessing a non existing slave the bus will go into arbitration mode.
It's unable to recover from it.
Signed-off-by: Alexander Aring <a.aring@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Increase pxa reading performance by reading 4 bytes at a
time instead of 4 reads of 1 byte.
As the mci controller FIFO accepts reads on bytes, halfwords
or words, use words whenether possible.
The boost is for a 250KBytes file read and display (bmp):
- before: 6900ms
- after: 6000ms
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The write data timeout is too small for old cards,
especially the Transcend 256MBytes SD card. Increase it from
10ms to 100ms.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As PXA cpus suffer from a silicon bug which prevents them
from being compound devices, forbid use_acm=1 for PXAs.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The NAND_READ_OOB Kconfig option is used to
a) creating a cdev for reading OOB data
b) compiling in mtd->read_oob support
The former was intended and that's also what the Kconfig help
says. The latter though was implicit and wrong. mtd->read_oob
is also used by the bbt code which resulted in a NULL pointer
deref when compiled with BBT but without NAND_READ_OOB.
To fix this, split the option into two. The now invisible
option NAND_OOB_DEVICE is only responsible for b) and gets
selected when necessary.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Support for the old DM9000E device is now part of the new dm9k.c driver. So,
remove the old driver source and switch all users to the new driver.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds support for the more recent DM9000A and DM9000B types, and keeps
support for the older DM9000E device. As this patch is more or less a complete
re-wrote of the existing driver I add a new source file instead of fixing the
existing one. In a later patch the old driver will be removed.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add all available video modes to the framebuffer. devinfo fb0
shows the available modes. We can select a mode now.
Signed-off-by: Christian Hemp <c.hemp@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add a simple PIO based host controller for MMC and SD cards
on PXA SoCs. Reads and writes are available, and no usage is
made of DMA or IRQs.
SPI mode is not supported yet.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We have to check which sd card slot we use. The registered mmc_id is the
the correct parameter for this.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is needed for the ohci-at91 to work.
In u-boot this function was transmitting a cmdlen of 12, by the initial
commit. There are similar functions like usb_request_sense,
usb_read_capacity nearby which also transmit 12 byte per default on
u-boot, which probably also need a fix.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
as example today if the timeout happened we can not probe the SD card again
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
As USB can have its cable plugged out anytime, make the
serial gadget reliable in case of unplugging :
- unregister the gadget_serial provided console
- don't stay forever in the read loop if connection was cut
This behaviour relies on correct implementation of
usb_gadget_poll(), which should return an error if the USB
cable was removed.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The serial gadget can only work if the serial function is
properly connected on USB trigger (ie. on SET_CONFIGURATION
or SET_INTERFACE USB message triggering set_alt() in
composite.c).
Make this connection and handle also the disconnection in
f_serial.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Use the generic gadget polling function instead of the
specific fsl function. This is a fix from a leftover in
gadget development.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Adapt mainline kernel pxa27x_udc driver to barebox :
- remove function header comments as they are in mainline
- test it with serial gadget
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The core support was brought by Marc and Sascha.
The cache choice was fixed by Luotao Fu.
Some gpio and devices addons were provided by Robert.
Signed-off-by: Luotao Fu <l.fu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- use KERN_ERR for messages when NAND-ID detection fails
- report the IDs also if not found
- print the errno if nand_scan failed
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We never had interrupt support in barebox and we have no plans to
add interrupt support. Even if we do I doubt the current fragments
of irq support are helpful, so remove them.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Without CRC support the mmc spi driver fails to compile with
the following:
drivers/mci/mci_spi.c:74:18: error: static declaration of 'crc7' follows non-static declaration
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This simple driver enables a generic driver for ATA type of devices to get
access to the so called 'register file' of an ATA drive.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This changed patch removes more of the u-boot like code and replace it with
kernel like code.
commit 2a8966936af6b54573483ade559d0633e489b515
Author: Juergen Beisert <jbe@pengutronix.de>
Date: Fri Sep 30 15:06:26 2011 +0200
ATA Disk Support: Add support for native ATA type drives
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Using the BIOS to access attached hard disks means a full disk driver, not only
an interface to the drives.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
'ATA' means more an interface than a disk drive. Change the names to reflect
their real meaning.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The BIOS based disk driver makes no sense without the generic disk support.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Enabling AUTOSYNC means enabling the auto sync feature, not rising the RTS
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Without this i.e. the m25p driver is not working properly.
Its used to calculate the return value of the read/write function of
some devices. If the value is missing, barebox would always
miscalculate the next transfer sizes.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The Linux kernel says (spi.h) :
* All SPI transfers start with the relevant chipselect active. Normally
* it stays selected until after the last transfer in a message. Drivers
* can affect the chipselect signal using cs_change.
*
* (i) If the transfer isn't the last one in the message, this flag is
* used to make the chipselect briefly go inactive in the middle of the
* message. Toggling chipselect in this way may be needed to terminate
* a chip command, letting a single spi_message perform all of group of
* chip transactions together.
*
* (ii) When the transfer is the last one in the message, the chip may
* stay selected until the next transfer. On multi-device SPI busses
* with nothing blocking messages going to other devices, this is just
* a performance hint; starting a message to another device deselects
* this one. But in other cases, this can be used to ensure correctness.
* Some devices need protocol transactions to be built from a series of
* spi_message submissions, where the content of one message is
* determined by the results of previous messages and where the whole
* transaction
* ends when the chipselect goes intactive.
In other words, cs_change changes the default chipselect *behavior*.
Support of cs_change is necessary to implement the mci spi driver.
This patch also fix few things:
Passing the bus number to the brand new master device.
Disable chipselect during master->setup.
Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds MMC over SPI support to mci-core.c and
mci_spi.c driver.
This driver is useful when SOC doesn't have built-in MCI
component. Tested with nios, 2Go SD-CARD and FAT file system.
Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We used to loop around the sectors in mci_sd_write/mci_sd_read.
Now that we have multi block read and write this is not necessary
anymore.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add missing reference to dev when register the blockdevice.
This prevent the creation of a cdev with a NULL reference to dev in
blockdevice_register.
Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The OMAP4 romcode expects some unusual ecc layout which we could
write but not read. This patch adds a function which uses the
manual mode to read a page written with this ecc layout.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We can't use the ECC_RESULTx_0 register set for manual mode which
we'll need in the next patch. So factor out an internal function
which makes the register set to use configurable.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
- add missing '\n' at line ends
- fix wrong argument type warnings
- remove too noisy debug in omap_hwcontrol
- add function names to debug printfs
- add 0x prefixes to hex values
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The driver used to print an error when bch decoing failed, but
did not actually throw an error. Fix this.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Move omap_calculate_ecc outside omap_correct_bch. When implementing
the romcode bch read page we have to call omap_calculate_ecc with
different arguments than in the standard case.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
We need the bch correct algorithm in the next patches, so
factor out a seperate function for this and also safe an
indention level.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Modified the i2c_imx driver to support data-only transfers, without
command byte. This allows to construct more complex i2c transfers
and support non genuine devices like Atmel ATxx secure memory, where the
master reads data after a write command.
Signed-off-by: Rosen Kolev <rosen.kolev@amk-drives.bg>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Documentation says it should default to 8 when not specified
explicitly by the device data.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Call setup() before registering the device because registering leads
to a probe routine of the slave device and that requires an
initialised master.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is broken on big endian systems since:
943b271 cfi_flash: support of u32 cmd
I looked over it and I *think* that the function was correct
for both big and little endian systems before this patch.
To support u32 cmd we only have to change the data type of
the command from u8 to u32.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Teresa Gámez <t.gamez@phytec.de>
Implemented an initial version of USB mass storage device driver,
supporting USB mass storage devices with SCSI interface and BBB
protocol. It implements the ATA interface and registers diskovered
LUNs with the disk driver.
To allow for some generic io accessors introduce io.h and use
this instead of asm/io.h throughout the tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The nand controller on i.MX51/53 uses two base addresses. Instead
of hardcode the second address use the new shiny resources two specify
it.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Based on the Linux driver. Tested with m25p80 with CS in GPIO mode.
Clock setting support is ad-hoc as the corresponding mach is not using
the generic clock infrastructure.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
and busnum start at 1
as this
Bus 001 Device 002: ID 0b95:7720 AX88772
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Commit 4c542622 used the wrong variable name and caused a build failure.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Add platform data to specify maximum frequency of hsmmc interface
which can be restricted due to external level shifters.
Signed-off-by: Juergen Kilb <J.Kilb@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This code was tested barely with m25p80 driver, reading jedec id and some data
from the chip worked fine.
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Some NOR flash chips have commands with length greater than the maximum
value size of uchar.
Based on an U-Boot Patch by Vasiliy Leoenenko <vasiliy.leonenko@mail.ru>
Only tested with little endian on an intel cfi_flash.
Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds the m25p80 driver. It has been ported from
Linux. MTD code has been removed. It has been tested with
a m25p40 chip and the Altera SPI master driver.
Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Files associated to a device showed up in a long list. Instead,
print them in seperate lines and also show offset/size information
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Otherwise, when a non active device is unregistered, we call
list_del on an unitialized list which oopses.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
this will also fix the clock support as we now switch to allocated generic
device
as we can need to associate the clock and the device but the driver is probe
before the association
we also change the atmel serial name to "atmel_usart" to simplify sharing with
linux
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
as now all the drivers and board have been switch to resource whe can drop
map_base and size from device_d
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
use generic read/write depending on the memory size
if no reg_read/write defined
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
pass the hccr and hcor register base via resource
instroduce add_generic_usb_echi_device with hccr = base + 0x100 and
hcor = base + 0x140
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
While at it, dynamically allocate private driver struct.
There might be only a single instance of this driver,
but don't be a bad example for others.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The driver uses a static int once variable to alloc the
rx packets. remove this to make the driver multi instance
safe. While at it, remove the crappy selfmade alignment.
dma_alloc_coherent returns sufficiently aligned memory.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In the Kernel this bug is described like this:
> The CMDTYPE of the CMD register (offset 0xE) should be set to
> "11" when the STOP CMD12 is issued on imx53 to abort one
> open ended multi-blk IO. Otherwise the TC INT wouldn't
> be generated.
> In exact block transfer, the controller doesn't complete the
> operations automatically as required at the end of the
> transfer and remains on hold if the abort command is not sent.
> As a result, the TC flag is not asserted and SW received timeout
> exeception. Bit1 of Vendor Spec registor is used to fix it.
We do not use exact block transfers in barebox, so we only need
the first part of this fix.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is the non invasive approach. All this type casting
shows this driver should be really cleaned up (or retired)
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
If the device setup executed by the spi master fails,
unregister the created device.
Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
During the creation of a new spi device, we need to
have the possiblility to give the bits_per_word value
to master->setup.
As a matter of fact, spi master could check the spi
device bits_per_word and compare this value against its
capabilities.
Signed-off-by: Franck Jullien <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When the bus_width was set to 8, then only one data-line has been initialized.
Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit adds support for most spi eeproms, such as the
Atmel at25 models.
Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit adds the following spi transfer functions:
- spi_write
- spi_read
- spi_write_then_read
- spi_w8r8
The code has been ported from the linux kernel.
Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
In the spi layer this pointer will be assigned to the
platform_data pointer of the new spi device, thus it can
be accessed in the drivers 'probe' handler.
Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Now a 'devinfo gpmc_nand0' shows the current used eccmode
instead of <NULL>.
The function omap_gpmc_eccmode is now called by dev_set_param.
Signed-off-by: Juergen Kilb <J.Kilb@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The following patch came across the mtd mailing list today. I thinks its also
valid for barebox (it handles a special corner case, but maybe it can hit us,
too):
In nand_do_write_ops() code it is possible for a caller to provide
ops.oobbuf populated and ops.mode == MTD_OOB_AUTO, which currently
means that the chip->oob_poi buffer isn't initialised to all 0xFF.
The nand_fill_oob() method then carries out the task of copying
the provided OOB data to oob_poi, but with MTD_OOB_AUTO it skips
areas marked as unavailable by the layout struct, including the
bad block marker bytes.
An example of this causing issues is when the last OOB data read
was from the start of a bad block where the markers are not 0xFF,
and the caller wishes to write new OOB data at the beginning of
another block. In this scenario the caller would provide OOB data,
but nand_fill_oob() would skip the bad block marker bytes in
oob_poi before copying the OOB data provided by the caller.
This means that when the OOB data is written back to NAND,
the block is inadvertently marked as bad without the caller knowing.
This has been witnessed when using YAFFS2 where tags are stored
in the OOB.
This patch changes the code so that oob_poi is always initialised
to 0xFF to make sure no left over data is inadvertently written
back to OOB data.
The comment above is for the linux kernel, but the same is valid for barebox
and CPUs writing the OOB date controlled in software (like the Samsung
S3C2440 does).
Signed-off-by: Adam Thomson <adam.thomson@alcatel-lucent.com>
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Heavily based on original Juergen Beisert's code.
Signed-off-by: Alexey Galakhov <agalakhov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
NAND_BUSWIDTH_16 should result in dev_width = 1 according to the kernel driver
omap_enable_hwecc: dev_width = (chip->options & NAND_BUSWIDTH_16) ? 1 : 0;
Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The old way happily removed cdev entries which were no bb dev
at all. Fix this by checking if the given device actually is
a bb device.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The cdev operations are available without the complete file API,
so they are more suitable for internal usage.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It's good to seperate the code which others can use from commands.
This way other users do not depend on the command being compiled in.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The information from the probe function is useful for developers
only, so turn them into dev_dbg to safe binary space.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The nand oob functions occupy quite some binary space. If not needed,
we can save this space by making this configurable.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch makes the USB command optional and makes usb_rescan a
global function. This way we can use USB in noninteractive
environments.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
No need to check for the result and increases the chance that we
build a binary without the rarely used calloc function.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds Altera UART driver. Kconfig and Makefile are
updated to include this new driver.
Signed-off-by: Franck JULLIEN <franck.jullien@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch adds BCH ecc support to the omap nand driver. The BCH
error correction allows for up to 8 bit error correction. It is
also needed for booting from nand on omap4.
This is based on code from Sukumar Ghorai <s-ghorai@ti.com>:
[PATCH] omap3: nand: bch ecc support added
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
On omap we use different ecc modes for different purposes. The initial
boot code has to be written with hardware ecc whereas Linux usually uses
software ecc. To be able to write in both modes with a sinlge barebox
image introduce a eccmode device parameter.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Give this omap specific entry an omap namespace. Also, remove
unnecessary dependency to omap2/3 in nand Kconfig.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Most cards do not answer if some reserved bits
in the ocr are set. However, some controllers
can set bit 7 (reserved for low voltages), but
how to manage low voltages SD card is not yet
specified.
based on the original U-Boot patch from
Stefano Babic <sbabic@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Do the same ECC handling and ECC size in barebox than the kernel does.
Currently its done for S3C2440 based systems only, as I have no idea how to
manage it on a S3C2410 based system.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
When booting from NAND, its important to know the correct page size. When
the NAND is used as the boot source, four dedicated pins are used to configure
the correct page size and address cycles. These pins can be read back in one
of the NFC registers to parametrize the load function.
This patch also extends the read routine to support more than four address
cycles on demand.
BTW: At least some mini2440s are misconfigured to use five address cycles for
a NAND device that is known to need only four address cycles. In this case the
vendor is at our side: This NAND simply ignores any additional address cycles
than required.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Something was to be done here. But I do not remember what. As it works also
without it, remove this dead code.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
After running the 'nand_boot_test' command, any usage of the NAND fails with
a IO error. This happens due to the load routine disables the NAND controller
after loading the image.
This patch re-enables the NAND controller again after running the test.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Only the platform sets this entry to setup the correct size or
signals the driver to guess the size of the attached disk.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
It will be called by set_ios anyway later. Also, do not
alter host->clock field, this is none of our business.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This allows for more type safety. passing a struct device_d
internally in the driver is not a good idea. Also, this
patch adds a void __iomem *regs to mxs_mci_host. dev->map_base
should not be used for register accesses.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
There is no need to fill the FIFOs before starting a transfer, so
remove corresponding code which is commented out anyway. Additionally
this fixes a compiler warning with gcc4.5
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Jürgen Beisert <jbe@pengutronix.de>
The i.MX Processors support two different boot modes, the internal
boot mode and the external boot mode. Traditionally the external
NAND boot mode is handled in drivers/mtd/nand and the internal
boot mode is handled in arch/arm/mach-imx. This patch consolidates
the handling of both boot modes in arch/arm/mach-imx so that
the user does not have to look in the mtd kconfig section for
booting from NAND. Also, selecting between internal and external
boot mode now is a clear choice.
The external NAND boot mode has been independent of the mtd nand
driver, but as the code was contained in the NAND driver it was
not possible to support booting from NAND without a mtd nand driver.
This is changed with this patch.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
as barebox can be run as a second stage the first stage may have init it
before so re-used it
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The S3C2440 provides 32 bit access to the NAND's data. Add specific read
routines to speed up data reading and writing.
These routines are stolen from the Linux kernel.
Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>