[ fsl_esdhc commit 263ddfc345 ]
The initial clock setting should be through sysctl register only,
while the mmc_set_clock() will call mmc_set_ios() introduce other
configurations like bus width, mode, and so on.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
This builds on the previous patch by converting yet more preprocessor
macros to C ifs. This is split off so that the changes adapted from
Micheal's patch may be clearly distinguished from the ones I have
authored myself.
MMC_SUPPORTS_TUNING should really get a Kconfig conversion. And DM_GPIO
needs some -ENOSYS stubs when it isn't defined.
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
[ fsl_esdhc commit 52faec3182 ]
Make the code cleaner and drop the old-style #ifdef constructs where it is
possible.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
[ fsl_esdhc commit 7e48a028a4 ]
First, we need the waterlevel setting for PIO mode only. Secondy, both DMA
setup code is identical for both directions, except for the data pointer.
Thus, unify them.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[ fsl_esdhc commit b1ba1460a4 ]
Use the dma_{map,unmap}_single() calls. These will take care of the
flushing and invalidation of caches.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[ fsl_esdhc commit da86e8cfcb ]
SDMA can only do DMA with 32 bit addresses. This is true for all
architectures (just doesn't apply to 32 bit ones). Simplify the code and
remove unnecessary CONFIG_FSL_LAYERSCAPE.
Also make the error message more concise.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[ fsl_esdhc commit 30f6444d02 ]
Fix mmc->clock with actual clock which is divided by the
controller, and record it with priv->clock.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[ fsl_esdhc commit commit 08197cb8df ]
Drop redundant code for non-removable feature. "non-removable" property
has been read in mmc_of_parse().
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
[ set MMC_CAP_NONREMOVABLE in plat->cfg.host_caps ]
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
[ fsl_esdhc commit 07bae1de38 ]
This patch is to clean up bus width setting code.
- For DM_MMC, remove getting "bus-width" from device tree.
This has been done in mmc_of_parse().
- For non-DM_MMC, move bus width configuration from fsl_esdhc_init()
to fsl_esdhc_initialize() which is non-DM_MMC specific.
And fix up bus width configuration to support only 1-bit, 4-bit,
or 8-bit. Keep using 8-bit if it's not set because many platforms
use driver without providing max bus width.
- Remove bus_width member from fsl_esdhc_priv structure.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
[ converted if statement to switch ]
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[ fsl_esdhc commit 5b05fc0310 ]
Voltage validation should be done by CMD8. Current comparison between
mmc_cfg voltages and host voltage capabilities is meaningless.
So drop current comparison and let voltage validation is through CMD8.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[ fsl_esdhc commit 2913926f3b ]
Remove redundant DM_MMC checking which is already in DM_MMC conditional
compile block.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
U-boot prefers DM_MMC + BLK for MMC. Now eSDHC driver has already
support it, so let's force to use it.
- Drop non-BLK support for DM_MMC introduced by below patch.
66fa035 mmc: fsl_esdhc: fix probe issue without CONFIG_BLK enabled
- Support only DM_MMC + BLK (assuming BLK is always enabled for DM_MMC).
- Use DM_MMC instead of BLK for conditional compile.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Import HS400 support for iMX7ULP B0 from the Linux kernel:
2eaf5a533afd ("mmc: sdhci-esdhc-imx: Add HS400 support for iMX7ULP")
According to IC suggest, need to clear the STROBE_DLL_CTRL_RESET
before any setting of STROBE_DLL_CTRL register.
USDHC has register bits(bit[27~20] of register STROBE_DLL_CTRL)
for slave sel value. If this register bits value is 0, it needs
256 ref_clk cycles to update slave sel value. IC suggest to set
bit[27~20] to 0x4, it only need 4 ref_clk cycle to update slave
sel value. This will short the lock time of slave.
i.MX7ULP B0 will need more time to lock the REF and SLV, so change
to add 5us delay.
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Igor Opaniuk <igor.opaniuk@foundries.io>
The SD clock disable is wrapped by MMC_SUPPORTS_TUNING. So it
only works when UHS is enabled. However, in SD initialization the
power cycle does not depends on UHS. But the power cycle needs
disable the SD clock before power down.
So this causes a problem when UHS is not enabled. Some cards can't
become ready (ACMD14 timeout) due to the clock is enabled during
power cycle.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Convert some of these occurences to C code, where it is easy to do. This
should help encourage this approach to be used in new code.
Signed-off-by: Simon Glass <sjg@chromium.org>
Now that we have a 'positive' Kconfig option, use this instead of the
negative one, which is harder to understand.
Signed-off-by: Simon Glass <sjg@chromium.org>
This reverts commit 63756575b4.
Since this commit a imx6qdl-pico board boots extremely slowly
in both SPL as well as U-Boot proper.
Fix this regression by reverting the offending commit for now.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Tested-by: Pierre-Jean Texier <texier.pj2@gmail.com>
Some board like imx8mm-evkb, IO voltage switch from 3.3v to 1.8v need
around 18ms, common code only delay 10ms, so need to delay extra 8ms.
Otherwise voltage switch will timeout when wait for data0 line.
This IO voltage switch time depends on board design, depend on the
PMIC and capacitance. imx8mm-evkb board use PCA9450(PMIC) and 10uF
capacitance.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Common code already handle the voltage switch sequence based on spec,
so remove the redundant voltage switch code.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
For FSL_USDHC, it do not implement VENDORSPEC_CKEN/PEREN/HCKEN/IPGEN, these
are reserved bits. Instead, use VENDORSPEC_FRC_SDCLK_ON to gate on/off the
card clock output.
After commit b5874b552f ("mmc: fsl_esdhc_imx: add wait_dat0() support"),
we meet SD3.0 card can't work at UHS mode, mmc_switch_voltage() fail because
the second mmc_wait_dat0 return -ETIMEDOUT. According to SD spec, during
voltage switch, need to gate off/on the card clock. If not set the FRC_SDCLK_ON,
after CMD11, hardware will gate off the card clock automatically, so card do
not detect the clock off/on behavior, so will draw the data0 line low until
next command.
Fixes: b5874b552f ("mmc: fsl_esdhc_imx: add wait_dat0() support")
Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
This function finds a device by its driver_info index. With
of-platdata-inst we do not use driver_info, but instead instantiate
udevice records at build-time.
However the semantics of using the function are the same in each case:
the caller provides an index and gets back a device.
So rename the function to device_get_by_ofplat_idx(), so that it can be
used for both situations. The caller does not really need to worry about
the details.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
On imx6Q/imx6DL, we find if config the DTOCV to 0~3, it will impact
cmd6 behavior, after cmd6 get transfer complete interrupt, the data0
line will keep low over 5 seconds. This should be a IC bug on imx6Q/DL.
For other platforms, do not has this issue.
To fix this issue, fix the DTOCV to 0xE, the max setting, this also align
with Linux configuration.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Add a compatible for i.MX51 so that i.MX51 can use this driver
via driver model.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Driver model: Rename U_BOOT_DEVICE et al.
dtoc: Tidy up and add more tests
ns16550 code clean-up
x86 and sandbox minor fixes for of-platdata
dtoc prepration for adding build-time instantiation
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Merge tag 'dm-pull-5jan21' of git://git.denx.de/u-boot-dm into next
Driver model: make some udevice fields private
Driver model: Rename U_BOOT_DEVICE et al.
dtoc: Tidy up and add more tests
ns16550 code clean-up
x86 and sandbox minor fixes for of-platdata
dtoc prepration for adding build-time instantiation
We use the U_BOOT_ prefix (i.e. U_BOOT_DRIVER) to declare a driver but
in every other case we just use DM_. Update the alias macros to use the
DM_ prefix.
We could perhaps rename U_BOOT_DRIVER() to DM_DRIVER(), but this macro
is widely used and there is at least some benefit to indicating it us a
U-Boot driver, particularly for code ported from Linux. So for now, let's
keep that name.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present various drivers etc. access the device's 'seq' member directly.
This makes it harder to change the meaning of that member. Change access
to go through a function instead.
The drivers/i2c/lpc32xx_i2c.c file is left unchanged for now.
Signed-off-by: Simon Glass <sjg@chromium.org>
This name is far too long. Rename it to remove the 'data' bits. This makes
it consistent with the platdata->plat rename.
Signed-off-by: Simon Glass <sjg@chromium.org>
We use 'priv' for private data but often use 'platdata' for platform data.
We can't really use 'pdata' since that is ambiguous (it could mean private
or platform data).
Rename some of the latter variables to end with 'plat' for consistency.
Signed-off-by: Simon Glass <sjg@chromium.org>
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.
Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.
Signed-off-by: Simon Glass <sjg@chromium.org>
For imx usdhc/esdhc, once set the DDR_EN, enable the DDR mode, the
card clock will be divied by 2 automatically by the host. So need
to first config the DDR_EN correctly, then update the card clock.
This will make sure the actual card clock is as our expected.
IC also suggest config the DDR_EN firstly, then config the clock
divider.
For HS400/HS400ES mode, need to config the strobe dll, this need
to based on the correct target clock rate, so need to do this after
clock rate is update.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
At present we use a 'node' pointer in the of-platadata phandle_n_arg
structs. This is a pointer to the struct driver_info for a particular
device, and we can use it to obtain the struct udevice pointer itself.
Since we don't know the struct udevice pointer until it is allocated in
memory, we have to fix up the phandle_n_arg.node at runtime. This is
annoying since it requires that SPL's data is writable and adds a small
amount of extra (generated) code in the dm_populate_phandle_data()
function.
Now that we can find a driver_info by its index, it is easier to put the
index in the phandle_n_arg structures.
Update dtoc to do this, add a new device_get_by_driver_info_idx() to look
up a device by drive_info index and update the tests to match.
Signed-off-by: Simon Glass <sjg@chromium.org>
Currently, readl/writel and esdhc_read32/esdhc_write32 are used. To align
the usage, change to only use esdhc_read32/esdhc_write32.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
This 1ms delay before sending command already exist from the beginning
of the fsl_esdhc driver added in year 2008. Now this driver has been
split for two files: fsl_esdhc.c and fsl_esdhc_imx.c. fsl_esdhc_imx.c
only for i.MX series. i.MX series esdhc/usdhc do not need this 1ms delay
before sending any command. So remove this 1ms, this will save a lot
time if handling a large mmc data.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Currently, after config the clock rate, delay 10ms, this is quite a rough
method. Check the clock stable status in the present status register is
enough.
Tested-by: Ji Luo <ji.luo@nxp.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
After enabling OF_PLATDATA support to both MMC and GPIO drivers add the
support for card detection.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
In order to reduce the footprint of SPL by removing dtb and library
overhead, add OF_PLATDATA support to fsl_esdhc_imx. This initial
approach does not support card detection, which will be enabled after
adding OF_PLATDATA support to GPIO.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
As discussed in commit <addf358bac1d2bd0> rename fsl_esdhc_imx
driver to allow the OF_PLATDATA support.
Signed-off-by: Walter Lozano <walter.lozano@collabora.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The Linux coding style guide (Documentation/process/coding-style.rst)
clearly says:
It's a **mistake** to use typedef for structures and pointers.
Besides, using typedef for structures is annoying when you try to make
headers self-contained.
Let's say you have the following function declaration in a header:
void foo(bd_t *bd);
This is not self-contained since bd_t is not defined.
To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h>
#include <asm/u-boot.h>
void foo(bd_t *bd);
Then, the include direcective pulls in more bloat needlessly.
If you use 'struct bd_info' instead, it is enough to put a forward
declaration as follows:
struct bd_info;
void foo(struct bd_info *bd);
Right, typedef'ing bd_t is a mistake.
I used coccinelle to generate this commit.
The semantic patch that makes this change is as follows:
<smpl>
@@
typedef bd_t;
@@
-bd_t
+struct bd_info
</smpl>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
In current code, we add 1ms dealy after each tuning command for standard
tuning method. Adding this 1ms dealy is because USDHC default check the
CMD CRC and DATA line. If detect the CMD CRC, USDHC standard tuning
IC logic do not wait for the tuning data sending out by the card, trigger
the buffer read ready interrupt immediately, and step to next cycle. So
when next time the new tuning command send out by USDHC, card may still
not send out the tuning data of the upper command，then some eMMC cards
may stuck, can't response to any command, block the whole tuning procedure.
If do not check the CMD CRC for tuning, then do not has this issue. USDHC
will wait for the tuning data of each tuning command and check them. If the
tuning data pass the check, it also means the CMD line also okay for tuning.
So this patch disable the CMD CRC check for tuning, save some time for the
whole tuning procedure.
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Unsupported voltage on voltage switch is not an error, do not
print error message in such a case. This happens e.g. if the
eMMC is already in 1V8 mode or when testing 1V2 mode operation
on systems which only do 3V3/1V8 switching.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
The 3V3/1V8 switching could never have worked on any of the iMXes
ever since 51313b49f2 ("mmc: fsl_esdhc: support SDR104 and HS200"),
because that commit uses priv->vqmmc_dev when switching voltages on
mode switch, while local vqmmc_dev in probe to store the regulator
pointer. Those are two different variables with the same name. So
the priv->vqmmc_dev was always NULL and thus voltage switch between
modes never really suceeded.
Fix this by assigning priv->vqmmc_dev with value of the vqmmc_dev
in probe.
Fixes: 51313b49f2 ("mmc: fsl_esdhc: support SDR104 and HS200")
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
