| Commit message (Collapse) | Author | Age | Lines |
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Make sure the pin request passed before attempting to use it later on.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Most arches don't support OSE, and this is a new bootm target, so the
likelihood of any board actually wanting this today is fairly low.
Any board who actually wants this can enable it in the board-specific
config without making it a default bloat.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The Blackfin gpio command isn't terribly Blackfin-specific. So generalize
the few pieces into two new optional helpers:
name_to_gpio() - turn a string name into a GPIO #
gpio_status() - display current pin bindings (think /proc/gpio)
Once these pieces are pulled out, we can relocate the cmd_gpio.c into the
common directory.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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There's no real need to keep these functions in the cmd_mem file since
they do not use any of the common global mem variables. So split them
out into their own dedicated cmd files.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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When fdt_fixup_memory_banks is called with 2-cell address and size
fields in the device-tree (IE: 64-bit address and size), then it will
overflow its on-stack "tmp" buffer.
This fixes the buffer size and adds a comment explaining how many bytes
need to be allocated per record.
Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Cc: Jerry Van Baren <vanbaren@cideas.com>
Acked-by: Gerald Van Baren <vanbaren@cideas.com>
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Modify eLBC based platform's NAND loader Makefile to preprocess nand loader
linker script and then use it.
Signed-off-by: Dipen Dudhat <Dipen.Dudhat@freescale.com>
CC: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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This patch changes the large page nand_command() routine to use a word
offset instead of a byte offset. The 'offs' argument gets divided by 2
so that the offset passed to nand_command() is still by byte offset.
Originally, the offset was not shifted and when too high an offset was
requested the nand chip would attempt to read non-existent data.
Signed-off-by: Alex Waterman <awaterman@dawning.com>
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Change variables to const to reduce code size, these values are
hardcoded via defines anyways so we might as well assume they
are constants
Signed-off-by: Matthew McClintock <msm@freescale.com>
cc: Scott Wood <scottwood@freescale.com>
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This patch sync with Brian's patch on Linux in nand_flash_detect_onfi()
commit b7b1a29d94c17e4341856381bccb4d17495bea60
Author: Brian Norris <computersforpeace@gmail.com>
Date: Sun Dec 12 00:23:33 2010 -0800
mtd: nand: rearrange ONFI revision checking, add ONFI 2.3
In checking for the ONFI revision, the first conditional (for checking
"unsupported" ONFI) seems unnecessary. All ONFI revisions should be
backwards-compatible; even if this is not the case on some newer ONFI
revision, it should simply fail the second version-checking if-else block
(i.e., the bit-fields for 1.0, 2.0, etc. would not be set to 1). Thus, we
move our "unsupported" condition after having checked each bit field.
Also, it's simple enough to add a condition for ONFI revision 2.3. Note
that this does *NOT* mean we handle all new features of ONFI versions
above 1.0.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Florian Fainelli <ffainelli@freebox.fr>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
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This patch sync with David's patch on Linux in nand_flash_detect_onfi()
commit 4ccb3b4497ce01fab4933704fe21581e30fda1a5
Author: David Woodhouse <David.Woodhouse@intel.com>
Date: Fri Dec 3 16:36:34 2010 +0000
mtd: nand: Fix integer overflow in ONFI detection of chips >= 4GiB
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Florian Fainelli <florian@openwrt.org>
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The omap24xx driver only seems to support devices that have a single subaddress
byte. With these types of devices, the first access in a bus transaction is
usually a write (writes the subaddress) followed by either a read or write to
access the devices registers.
Many such devices will respond to a read as the first access, but there are at
least some that will NACK such a read. (e.g. ADV7180.)
The probe function attempts to detect a devices ACK to a read access only and
fails to find devices that NACK a read.
This commit modifies the probe function to start a write instead. This detects
devices that respond to reads (since they must also respond to writes) as well
as those that only respond to writes. The bus is immediately set to idle after a
(N)ACK avoiding actually writing anything to the device.
Signed-off-by: Nick Thompson <nick.thompson@ge.com>
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Hi Terry,
> So I guess:
> mmc_init calls mmc_send_op_cond that set high_capacity,
> than it calls mmc_startup, that, with MMC_CMD_SEND_CSD command, set
> the capacity, using values in CSD register.
> So I guess that mmc_change_freq should not recalculate high_capacity.
>
> It seems better, isn't it?
>
> Regards,
> Raffaele
>
Finally I think that it is enough to apply the following patch in order
to fix the issue.
Regards,
Raffaele
Signed-off-by: Andy Fleming <afleming@freescale.com>
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Defining CONFIG_MMC_TRACE in the include board file it is possible to activate
a tracing support.
This code helps in case of eMMC hw failure or to investigate possible eMMC
initialization issues.
Signed-off-by: Raffaele Recalcati <raffaele.recalcati@bticino.it>
Signed-off-by: Andy Fleming <afleming@freescale.com>
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The first SEND_OP_COND (CMD1) command added is used to ask card capabilities.
After it an AND operation is done between card capabilities and host
capabilities (at the moment only for the voltage field).
Finally the correct value is sent to the MMC, waiting that the card
exits from busy state.
Signed-off-by: Raffaele Recalcati <raffaele.recalcati@bticino.it>
Signed-off-by: Andy Fleming <afleming@freescale.com>
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It is recommended to check card status after these kind of commands.
This is done using CMD13 (SEND_STATUS) JEDEC command until
the card is ready.
In case of error the card status field is displayed.
Signed-off-by: Raffaele Recalcati <raffaele.recalcati@bticino.it>
Signed-off-by: Andy Fleming <afleming@freescale.com>
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Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
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Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
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This patch supports mmc/sd card with spi interface. It is based on
the generic mmc framework. It works with SDHC and supports multi
blocks read/write.
The crc checksum on data packet is enabled with the def,
There is a subcomamnd "mmc_spi" to setup spi bus and cs at run time.
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Andy Fleming <afleming@freescale.com>
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These local vars need not be writable nor exported.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>
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As DATA_ERROR includes the value IRQSTAT_DTOE, a timeout error
would yield the first error return instead of TIMEOUT.
By swapping the test TIMEOUTs are reported as such
An alternate solution would be to remove the IRQSTAT_DTOE from the DATA_ERROR define
but as that one might be less desired I've opted for the simplest solution
Signed-off-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
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This patch adds CONFIG_SPI_IDLE_VAL to cf_spi.c
The default setting is 0x0 to behave same as current version, in case
CONFIG_SPI_MMC is set, the value is set to 0xFFFF (all ones). In either
case, the value can be overwritten by board configuration.
Signed-off-by: Wolfgang Wegner <w.wegner@astro-kom.de>
Signed-off-by: Andy Fleming <afleming@freescale.com>
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The maximum blocks value was hardcoded to 65535 due to a 16 bit
register length. The value can change for different platforms.
This patch makes the default the current value of 65535, but it
is configurable for other platforms.
Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
Signed-off-by: Andy Fleming <afleming@freescale.com>
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Fixed a bug wherein SD version 1.0 cards were not configured for 4-bit mode
Signed-off-by: Alagu Sankar <alagusankar@embwise.com>
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This reverts commit 39768f7715ed637ef02f49fc7de664cc1aaf14b3.
Reson: it breaks a number of boards with embedded environment as the
code size grows in some places.
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8xx was left behind when fixing up powerpc linking
scripts to support -fpic.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
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Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
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This seems to pad to one byte longer than required
Signed-off-by: Simon Glass <sjg@chromium.org>
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Signed-off-by: James Kosin <jkosin@intcomgrp.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Requires a little reworking of the code flow with sub-functions, but
not a big deal.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The common spi flash layer displays useful info when probing, so no
need for us to duplicate that.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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This patch adds [+]len handler for the erase command that will
automatically round up the requested erase length to the flash's
sector_size.
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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No need for these to be exported as they are only accessed indirectly
via function pointers.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The previous unification patch missed setting up the sst read func.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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This patch adds a new member to struct spi_flash (u16 sector_size)
and updates the spi flash drivers to start populating it.
This parameter can be used by spi flash commands that need to round
up units of operation to the flash's sector_size.
Having this number in one place also allows duplicated code to be
further collapsed into one common location (such as erase parameter
and the detected message).
Signed-off-by: Richard Retanubun <RichardRetanubun@RuggedCom.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The AT45 flashes are completely different (at the command set and
status register level) from all other SPI flashes, so we can't unify
their logic with common code.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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commit cfbe861506e2dc3250ac99dc45bb3d1ac60f4857 removed the definition of
monitor_flash_len from the eNET which was not picked up due to extensive
use of the SRAM configuration target for testing
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
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The README files are totally out-of-date to the point where they do more
harm than good
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
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