Commit Graph

13965 Commits

Author SHA1 Message Date
Tom Rini
2a055ea532 Minor sandbox enhancements / fixes
tpm improvements to clear up v1/v2 support
 buildman toolchain fixes
 New serial options to set/get config
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Merge tag 'dm-pull-5dec18' of git://git.denx.de/u-boot-dm

Minor sandbox enhancements  / fixes
tpm improvements to clear up v1/v2 support
buildman toolchain fixes
New serial options to set/get config
2018-12-05 20:32:25 -05:00
Tom Rini
9450ab2ba8 Merge branch 'master' of git://git.denx.de/u-boot-spi
- Various MTD fixes from Boris
- Zap various unused / legacy paths.
- pxa3xx NAND update from Miquel

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-12-05 15:06:24 -05:00
Boris Brezillon
08898e8b22 mtd: sf: Make sf_mtd.c more robust
SPI flash based MTD devs can be registered/unregistered at any time
through the sf probe command or the spi_flash_free() function.

This commit does not try to fix the root cause as it would probably
require rewriting most of the code and have an mtd_info object
instance per spi_flash object (not to mention that the the spi-flash
layer is likely to be replaced by a spi-nor layer ported from Linux).

Instead, we try to be as safe as can be by checking the code returned
by del_mtd_device() and complain loudly when there's nothing we can
do about the deregistration failure. When that happens we also reset
sf_mtd_info.priv to NULL, and check for NULL pointer in the mtd hooks
so that -ENODEV is returned instead of hitting a NULL pointer
dereference exception when the MTD instance is later accessed by a user.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06 00:45:36 +05:30
Boris Brezillon
7371944a71 mtd: sf: Unregister the MTD device prior to removing the spi_flash obj
The DM implementation of spi_flash_free() does not unregister the MTD
device before removing the spi dev object. This leads to a use-after-free
bug when the MTD device is later accessed by a MTD user (observed when
attaching the device to UBI after env_sf_load() has called
spi_flash_free()).

Implement ->remove() and call spi_flash_mtd_unregister() from there.

Fixes: 9fe6d8716e ("mtd, spi: Add MTD layer driver")
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-12-06 00:45:36 +05:30
Boris Brezillon
4a5594fa20 mtd: Don't stop MTD partition creation when it fails on one device
MTD partition creation code is a bit tricky. It tries to figure out
when things have changed (either MTD dev list or mtdparts/mtdids vars)
and when that happens it first deletes all the partitions that had been
previously created and then creates the new ones based on the new
mtdparts/mtdids values.
But before deleting the old partitions, it ensures that none of the
currently registered parts are being used and bails out when that's
not the case. So, we end up in a situation where, if at least one MTD
dev has one of its partitions used by someone (UBI for instance), the
partitions update logic no longer works for other devs.

Rework the code to relax the logic and allow updates of MTD parts on
devices that are not being used (we still refuse to updates parts on
devices who have at least one of their partitions used by someone).

Fixes: 5db66b3aee ("cmd: mtd: add 'mtd' command")
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06 00:45:36 +05:30
Boris Brezillon
2428d9160b mtd: Make sure we don't parse MTD partitions belonging to another dev
The mtdparts variable might contain partition definitions for several
MTD devices. Each partition layout is separated by a ';', so let's
make sure we don't pick a wrong name when mtdparts is malformed.

Fixes: 5db66b3aee ("cmd: mtd: add 'mtd' command")
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06 00:45:36 +05:30
Boris Brezillon
772aa97993 mtd: Make sure the name passed in mtdparts fits in mtd_name[]
The local mtd_name[] variable is limited in size. Return an error if
the name passed in mtdparts does not fit in this local var.

Fixes: 5db66b3aee ("cmd: mtd: add 'mtd' command")
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06 00:45:36 +05:30
Boris Brezillon
429e048e41 mtd: Be more strict on the "mtdparts=" prefix check
strstr() does not guarantee that the string we're searching for is
placed at the beginning. Use strncmp() instead.

Fixes: 5db66b3aee ("cmd: mtd: add 'mtd' command")
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06 00:45:36 +05:30
Boris Brezillon
96b06434e5 mtd: Use get_mtdids() instead of env_get("mtdids") in mtd_search_alternate_name()
The environment is not guaranteed to contain a valid mtdids variable
when called from mtd_search_alternate_name(). Call get_mtdids() instead
of env_get("mtdids").

Fixes: ff4afa8a98 ("mtd: uboot: search for an equivalent MTD name with the mtdids")
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06 00:45:36 +05:30
Boris Brezillon
492151b209 mtd: sf: Make sure we don't register the same device twice
spi_flash_mtd_register() can be called several times and each time it
will register the same mtd_info instance like if it was a new one.
The MTD ID allocation gets crazy when that happens, so let's track the
status of the sf_mtd_info object to avoid that.

Fixes: 9fe6d8716e ("mtd, spi: Add MTD layer driver")
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-12-06 00:45:36 +05:30
Boris Brezillon
a02820fca9 mtd: Delete partitions attached to the device when a device is deleted
If we don't do that, partitions might still be exposed while the
underlying device is gone.

Fixes: 2a74930da5 ("mtd: mtdpart: implement proper partition handling")
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06 00:45:36 +05:30
Boris Brezillon
779c9c0565 mtd: Parse mtdparts/mtdids again when the MTD list has been updated
Updates to the MTD device list should trigger a new parsing of the
mtdids/mtdparts vars even if those vars haven't changed.

Fixes: 5db66b3aee ("cmd: mtd: add 'mtd' command")
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06 00:45:36 +05:30
Boris Brezillon
4c47fd0b6b mtd: Add a function to report when the MTD dev list has been updated
We need to parse mtdparts/mtids again everytime a device has been
added/removed from the MTD list, but there's currently no way to know
when such an update has been done.

Add an ->updated field to the idr struct that we set to true every time
a device is added/removed and expose a function returning the value
of this field and resetting it to false.

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Tested-by: Heiko Schocher <hs@denx.de>
2018-12-06 00:45:36 +05:30
Andy Shevchenko
50bf7d03c2 serial: ns16550: Provide ->getinfo() implementation
New callback will supply necessary information, for example,
to ACPI SPCR table.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-05 07:23:15 -07:00
Tom Rini
9649c5343f video, bmp and cls command updates
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Merge tag 'video-updates-for-2019.01-rc2' of git://git.denx.de/u-boot-video

video, bmp and cls command updates
2018-12-05 08:24:14 -05:00
Andy Shevchenko
4e7207791c serial: ns16550: Read reg-io-width from device tree
Cache the value of the reg-io-width property for the future use.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:08:35 -07:00
Andy Shevchenko
d5bb4f862b dm: serial: Introduce ->getinfo() callback
New callback will give a necessary information to fill up ACPI SPCR table,
for example. Maybe used later for other purposes.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Change ADR_SPACE_SYSTEM_IO to SERIAL_ADDRESS_SPACE_IO to fix build error:
Signed-off-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:08:31 -07:00
Andy Shevchenko
ac7f5db9dc dm: serial: Add ->getconfig() callback
In some cases it would be good to know the settings, such as parity,
of current serial console. One example might be an ACPI SPCR table
to generate using these parameters.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:06:44 -07:00
Patrick Delaunay
4f86a724e8 power: regulator: denied disable on always-on regulator
Don't disable regulator which are tagged as "regulator-always-on" in DT.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jack Mitchell <jack@embed.me.uk>
Tested-by: Jack Mitchell <jack@embed.me.uk>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Richard Röjfors <richard@puffinpack.se>
Tested-by: Richard Röjfors <richard@puffinpack.se>
Reviewed-by: Felix Brack <fb@ltec.ch>
Tested-by: Felix Brack <fb@ltec.ch>
2018-12-05 06:06:44 -07:00
Álvaro Fernández Rojas
7959882049 dm: core: add functions to get/remap I/O addresses by name
This functions allow us to get and remap I/O addresses by name, which is useful when there are multiple reg addresses indexed by reg-names property.
This is needed in bmips dma/eth patch series, but can also be used on many
other drivers.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:06:44 -07:00
Simon Glass
4a978e86d7 video: backlight: Fix log message in enable_sequence()
This has an extra argument. Remove it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
2018-12-05 06:01:35 -07:00
Simon Glass
165be50f5a input: i8042: Use remove() instead of exported functions
We should not have exported functions in a driver. The i8042_disable()
function is used to disable the keyboard. Provide a remove() method
instead, which is the standard way of disabling a device.

We could potentially add a method to flush input but that does not seem
necessary.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:01:35 -07:00
Simon Glass
eafb4a59db cros_ec: Adjust to use v1 vboot context only
At present there are no users of the 64-byte v2 context. The v1 context is
only 16 bytes long and currently an error is raised if too much data is
returned from the EC.

Update the code to limit the size to 16 bytes.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:01:34 -07:00
Simon Glass
a749c09a1e cros: Correct a printf() string and comment
Correct a warning that occurs on sandbox. Also fix the comment style in
cros_ec_set_lid_shutdown_mask().

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:01:34 -07:00
Simon Glass
2a07269062 sandbox: sysreset: Update to support power-on reset
If U-Boot is started from SPL or TPL, then those earlier phases deal with
the reset cause. On real hardware this cause may be lost once it is read.
Emulate that behaviour in sandbox by reporting a warm reset when a
previous phase has run since start-up.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:01:34 -07:00
Simon Glass
e628bba785 sandbox: net: Correct name copy in eth_raw_bus_post_bind()
We cannot be sure that the interface name takes up the full length of the
space available to it. Use strcpy() instead of memcpy() in this case. This
corrects a valgrind warning.

Signed-off-by: Simon Glass <sjg@chromium.org>
2018-12-05 06:01:34 -07:00
Anatolij Gustschin
96d82f6c86 video: use BMP_ALIGN_CENTER define from splash.h
Drop BMP_ALIGN_CENTER define in lcd.c and video_bmp.c as it is
already defined by splash.h. Include splash.h in bmp code.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
2018-12-04 19:47:20 +01:00
Marek Vasut
cf345760bd mmc: Do not issue CMD 6 on SD 1.00 and SD 1.01
According to SD Specifications Part 1 Physical Layer Simplified Specification
Version 6.00 August 29, 2018, section 4.3.10 (Switch Function Command) and
section 5.6 (SCR register), SD cards version 1.00 and 1.01 do not support the
SD CMD 6.

Currently, U-Boot will issue CMD 6 unconditionally in sd_set_card_speed()
while configuring the bus for selected frequency. This will make SD cards
version 1.00 and 1.01 time out and thus fail detection altogether.

Fix this by not sending CMD 6 on such cards. Tested on Matsushita Electric
Industrial Co., Ltd. Japan RP-SD008B / Victor 8MB SD card, CU-SD008, which
is correctly detected with this patch as:

Device: sd@ee160000
Manufacturer ID: 1
OEM: 5041
Name: S008B
Bus Speed: 25000000
Mode : SD Legacy
Rd Block Len: 512
SD version 1.0
High Capacity: No
Capacity: 6.5 MiB
Bus Width: 4-bit
Erase Group Size: 512 Bytes

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-04 09:21:06 +01:00
Simon Goldschmidt
1a67969a99 Revert "serial: ns16550: fix debug uart putc called before init"
This reverts commit 6f57c34473 since it
does not seem to work at least on rk3399.

The Rockchip Technical Reference Manual (TRM) for the rk3399 says the baud
rate prescaler register is readable only when USR[0] is zero. Since this
bit is defined as "reserved" in the socfpga cylcone5 TRM, let's rather
drop this than making the ns16550 debug uart more platform specific.

Reported-by: Roosen Henri <Henri.Roosen@ginzinger.com>
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com
2018-12-03 21:50:47 -05:00
Tom Rini
0a3d59e010 Xilinx changes for v2019.01
microblaze:
 - Use default functions for memory decoding
 - Showing model from DT
 
 zynq:
 - Fix spi flash DTs
 - Fix zynq_help_text with CONFIG_SYS_LONGHELP
 - Tune cse/mini configurations
 - Enabling cse/mini testing with current targets
 
 zynqmp:
 - Enable gzip SPL support
 - Fix chip detection logic
 - Tune mini configurations
 - DT fixes(spi-flash, models, clocks, etc)
 - Add support for OF_SEPARATE configurations
 - Enabling mini testing with current targets
 - Add mini mtest configuration
 - Some minor config setting
 
 nand:
 - arasan: Add subpage configuration
 
 net:
 - gem: Add 64bit DMA support
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Merge tag 'xilinx-for-v2019.01' of git://git.denx.de/u-boot-microblaze

Xilinx changes for v2019.01

microblaze:
- Use default functions for memory decoding
- Showing model from DT

zynq:
- Fix spi flash DTs
- Fix zynq_help_text with CONFIG_SYS_LONGHELP
- Tune cse/mini configurations
- Enabling cse/mini testing with current targets

zynqmp:
- Enable gzip SPL support
- Fix chip detection logic
- Tune mini configurations
- DT fixes(spi-flash, models, clocks, etc)
- Add support for OF_SEPARATE configurations
- Enabling mini testing with current targets
- Add mini mtest configuration
- Some minor config setting

nand:
- arasan: Add subpage configuration

net:
- gem: Add 64bit DMA support
2018-12-03 19:30:54 -05:00
Tom Rini
f388e3bed7 Patch queue for efi - 2018-12-03
This release is fully packed with lots of glorious improvements in UEFI
 land again!
 
   - Make PE images more standards compliant
   - Improve sandbox support
   - Improve correctness
   - Fix RISC-V execution on virt model
   - Honor board defined top of ram (fixes a few boards)
   - Imply DM USB access when distro boot is available
   - Code cleanups
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Merge tag 'signed-efi-next' of git://github.com/agraf/u-boot

Patch queue for efi - 2018-12-03

This release is fully packed with lots of glorious improvements in UEFI
land again!

  - Make PE images more standards compliant
  - Improve sandbox support
  - Improve correctness
  - Fix RISC-V execution on virt model
  - Honor board defined top of ram (fixes a few boards)
  - Imply DM USB access when distro boot is available
  - Code cleanups
2018-12-03 17:52:40 -05:00
Tom Rini
ec0d0d8742 Merge branch 'master' of git://git.denx.de/u-boot-sh
- MMC fixes for R-Car Gen3
2018-12-03 17:51:45 -05:00
Simon Glass
06696ebe67 video: Allow driver to specify the line length
At present line_length is always calculated in video_post_probe(). But
some hardware may use a different line length, e.g. with a 1366-wide
display.

Allow the driver to set this value if needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2018-12-03 19:09:44 +01:00
Christophe Leroy
fb0204e48b spi, mpc8xx: migrate to DM_SPI
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-12-03 10:44:10 -05:00
Christophe Leroy
42b54013a0 drivers: serial: get rid of non DM mpc8xx driver
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-12-03 10:44:10 -05:00
Christophe Leroy
bdfa11ebcf drivers: serial: migrate mpc8xx to DM
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-12-03 10:44:10 -05:00
Christophe Leroy
749c9aae9d drivers: watchdog: add a DM driver for the MPC8xx watchdog
This patch adds a DM driver for the MPC8xx watchdog.
Basically, the watchdog is enabled by default from the start and
SYPCR register has to be writen once to set the timeout and/or
deactivate the watchdog. Once written, it cannot be written again.

It means that wdt_stop() can be called before wdt_start() to stop the
watchdog, but cannot be called if wdt_start() has been called.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-12-03 10:44:10 -05:00
Lukasz Majewski
c8c0242f1c rtc: m41t62: Convert the RTC driver to support the driver model (DM)
After this change the m41t62.c can be used with RTC subsystem (i.e. date
command) which uses device model (DM).

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
2018-12-03 10:44:10 -05:00
Lukasz Majewski
7afc4155a7 rtc: m41t62: Extract common RTC handling code to facilitate DM conversion
This change facilitates the conversion of m41t62 RTC driver to device
model (DM).

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
2018-12-03 10:44:10 -05:00
Lukasz Majewski
4d3df956fb rtc: m41t62: Break i2c_write() arguments to fix checkpatch warning
No functional change for this commit.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
2018-12-03 10:44:10 -05:00
Lukasz Majewski
d27db67e6b Kconfig: Migrate CONFIG_RTC_M41T62 define to Kconfig
This patch moves the RTC M41T62 config define to Kconfig.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-03 10:44:10 -05:00
Siva Durga Prasad Paladugu
5f68f44c14 net: zynq_gem: Add check for 64-bit dma support by hardware
This patch throws an error if 64-bit support is expected
but DMA hardware is not capable of 64-bit support. It also
prints a debug message if DMA is capable of 64-bit but not
using it.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2018-12-03 16:22:06 +01:00
Vipul Kumar
9a7799f4f4 net: zynq_gem: Added 64-bit addressing support
This patch adds 64-bit addressing support for zynq gem.
This means it can perform send and receive operations on
64-bit address buffers.

Signed-off-by: Vipul Kumar <vipul.kumar@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2018-12-03 16:22:01 +01:00
Loic Devulder
8973d81658 ARM: meson: Add regmap support for clock driver
This patch modifies the meson clock driver to use syscon/regmap like
the Linux kernel does, as it is needed if we want to share the same
DTS files.

DTS files are synchronized from Linux 4.19.

Signed-off-by: Loic Devulder <ldevulder@suse.de>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
2018-12-03 13:34:21 +01:00
Marek Vasut
50aa1d99ed mmc: tmio: sdhi: Add HS400 support
Add support for the HS400 mode to SDHI driver. This uses the up-tune
mechanism from already supported HS200 tuning.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-03 12:51:17 +01:00
Marek Vasut
95ead3d98d mmc: tmio: sdhi: Move tap_pos to private data
Move the tap_pos variable, which is the HS200/HS400/SDR104 calibration
offset, into private data, so it can be passed around. This is done in
preparation for the HS400 mode, which needs to adjust this value.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-03 12:51:17 +01:00
Marek Vasut
d34bd2deda mmc: tmio: sdhi: Filter out HS400 on certain SoCs
Filter out HS400 support on SoCs where HS400 is not supported yet.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-03 12:51:17 +01:00
Marek Vasut
ed427dab2e mmc: tmio: Reorder TMIO clock handling
Reorder the tmio_sd_set_clk_rate() function such that it handles all
of the clock requiests correctly. Specifically, before this patch,
clock request with (mmc->clock == 0 && mmc->clk_disable) could leave
the clock enabled, as the function would exit on if (!mmc->clock)
condition on top and will not handle the mmc->clk_disable at all.

Rather than band-aid fixing just that particular problem, reorder
the entire function to make it easier to understand and verify that
all the cases are covered. The function has three sections now:

First, if mmc->clock != 0, we calculate divider for the SD block.
Second, if mmc->clock != 0 and SD block clock are enabled and
           current divider is not equal to the new divider, then
           stop the clock and update the divider.
Third, if mmc->clk_disable is set, disable the clock, otherwise
       enable the clock. This happens independently of divider
       update now.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-03 12:51:16 +01:00
Marek Vasut
59d529afdc mmc: tmio: Keep generating clock when clock are enabled
The TMIO core has a feature where it can automatically disable clock output
when the bus is not in use. While this is useful, it also interferes with
switching the bus to 1.8V and other background tasks of the SD/MMC cards,
which require clock to be enabled.

This patch respects the mmc->clk_disable and only disables the clock when
the MMC core requests it. Otherwise the clock are continuously generated
on the bus.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-03 12:51:16 +01:00
Marek Vasut
6f8f20f85d mmc: tmio: Do not set divider to 1 in DDR mode
The TMIO core has a quirk where divider == 1 must not be set in DDR modes.
Handle this by setting divider to 2, as suggested in the documentation.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-12-03 12:51:16 +01:00