As per SD spec when SD host controller is reset, it takes 1000msec
to detect the card state. In case, if we enable the sd bus voltage &
card detect state is not stable, then host controller will disable
the sd bus voltage.

In case of warm/subsystem reboot, due to unstable card detect state
host controller is disabling the sd bus voltage to sd card causing
sd card timeout error. So we wait for a maximum of 1000msec to get
the card detect state stable before we enable the sd bus voltage.

This current fix is workaround for now, this needs to be analysed
further. Zynqmp platform should behave the same as Versal, but we
did not encounter this issue as of now. So we are fixing it for
Versal only.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Move tapdelay function calls to zynq_sdhci.c and make them static
inline. zynqmp_tap_delay.h has function prototypes for the functions
defined in tap_delays.c, which will not be needed anymore.

Remove tap_delays.c and zynqmp_tap_delay.h files.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

Currently xilinx sdhci driver is using zynqmp_mmio_write() to set
tapdelay values and DLL resets. Continue to use this for SPL and mini
U-Boot where U-Boot will be executed at EL3 level.

Use firmware call xilinx_pm_request() using appropriate arguments to
set input/output tapdelays and also for DLL resets in regular flow(EL2).

Host driver should explicitly request DLL reset before ITAP (assert DLL)
and after OTAP (release DLL) to avoid issues in some cases. Also handle
error return where possible.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

Add enums for pm node id's, pm ioctl id's, tapdelay types, dll reset types

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

set_delay() has return type as void. If there are any errors while
setting tapdelay's it won't be able to return them.

Change the prototype of set_delay() in sdhci_ops structure and return
the errors from wherever it is called.

Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Change return type of arasan_sdhci_set_tapdelay() to int, to facilitate
returning errors. Get return values from input and output set clock phase
functions inside arasan_sdhci_set_tapdelay() and return those errors.

Signed-off-by: T Karthik Reddy <t.karthik.reddy@xilinx.com>
Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Add firmware based reset controller for Xilinx ZynqMP SoC to let other
drivers to call reset functions. Driver is only tested on Xilinx ZynqMP but
support for Xilinx Versal can be simply added. That's why reset_id and
nr_reset are assigned in probe folder.
Driver is inpired by driver from Linux kernel.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Enable RTC command to be able to check available.
And also enable ZynqMP RTC driver to be possible to use by default.

Here is the list when both drivers are enabled:
ZynqMP> rtc list
RTC #0 - rtc_emul
RTC #1 - rtc@ffa60000

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

The whole driver logic is taken from Linux kernel but only set/get/reset
functions are implemented. When device is power off RTC is power out of
battery.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

RTCs are using sequence number defined in aliases node. Date command with
DM_RTC enabled is looking for the first RTC with index 0. But when
RTC_EMULATION is enabled it gets likely most of the time index 0 even when
system has rtc0 device via aliases node and gets sequence number 0.
That's why extend the code to look for sequence 0 number first. If this
fails continue to use existing device with index 0.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

RTCs are using aliases for sequences. That's why enable
DM_UC_FLAG_SEQ_ALIAS for exact RTC indentification.
The same flag is used by a lot of other uclasses like mmc, pci, serial,
spi, timer, tpm, etc.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Based on discussion at
https://lore.kernel.org/r/20200318125003.GA2727094@kroah.com

 we got
recommendation to use explicit values for all enum values.
The patch is following this recommendation.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/daeb67ded45d8a8f6a96717d1fb9c84439dd2ae8.1612361627.git.michal.simek@xilinx.com

The main reason for this to be implemented is capsule update.
Two memories are supported and tested which is MMC FAT based and QSPI
based.

For creating capsule these commands are used:
./tools/mkeficapsule --raw spl/boot.bin --index 1 capsule1.bin
./tools/mkeficapsule --raw u-boot.itb --index 2 capsule2.bin

Then transfer to SD card where these commands run:
load mmc 0 10000000 capsule1.bin
efidebug capsule update -v 10000000
load mmc 0 10000000 capsule2.bin
efidebug capsule update -v 10000000

Depends on the boot device used are binaries loaded to qspi or mmc fat
partition.
Also multiboot register is handled to make sure that the same location(id)
is used as image which is upgraded.

Two locations are used by purpose for SPL flow. If only boot.bin is used
create only one capsule.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

This variable is pointing to offset is qspi where u-boot image is placed.
In our case it is location of u-boot.itb file. Offset is the same as is
used by Xilinx Zynq SoC.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

When U-Boot runs in EL2 there is no access to csu_base registers that's why
this has to be done via firmware interface to find out multi boot register
value. Till now this function is called only from SPL in EL3.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Change multi_boot() to return multiboot value and move print out of this
function and let this function to be used by other functions without
duplicating message.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

When env_set() is called there is no need to allocate memory for variable
which is already saved that's why free it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

- Assorted fixes

Adarsh Babu Kalepalli authored 3 years ago and Tom Rini committed 3 years ago

Modified the help text of 'chpart' command ,mentioning that it is
for MTD devices.

Signed-off-by: Adarsh Babu Kalepalli <opensource.kab@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Adarsh Babu Kalepalli authored 3 years ago and Tom Rini committed 3 years ago

HELP description is provided for ‘configure’ sub-command
of ‘blkcache’.

Signed-off-by: Adarsh Babu Kalepalli <opensource.kab@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

Heinrich Schuchardt authored 3 years ago and Tom Rini committed 3 years ago

Symbol CONFIG_SYS_ID_EEPROM is defined in include/configs/MPC8548CDS.h
but never used. Remove it here and from the whitelist.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Start out by documenting general expectations on when CI is run, how
anyone can run Azure pipelines, and how GitLab CI pipelines can be run.

Signed-off-by: Tom Rini <trini@konsulko.com>

Campbell Suter authored 3 years ago and Tom Rini committed 3 years ago

In SquashFS, the contents of a directory is stored by
squashfs_directory_entry structures which contain the file's name, inode
and position within the filesystem.

The inode number is not stored directly; instead each directory has one
or more headers which set a base inode number, and files store the
offset from that to the file's inode number.

In mksquashfs, each inode is allocated a number in the same order as
they are written to the directory table; thus the offset from the
header's base inode number to the file's inode number is usually
positive.

Hardlinks are simply stored with two directory entries referencing the
same file. This means the second entry will thus have an inode number
much lower than the surrounding files. Since the header's base inode
number comes from the first entry that uses the header, this delta will
usually be negative.

Previously, U-Boot's squashfs_directory_entry.inode_offset field was
declared as an unsigned value. Thus when a negative value was found, it
would either resolve to an invalid inode number or to that of an
unrelated file.

A squashfs image to test this can be created like so:

    echo hi > sqfs_test_files/001-root-file
    mkdir     sqfs_test_files/002-subdir
    touch     sqfs_test_files/002-subdir/003-file
    ln        sqfs_test_files/{001-root-file,002-subdir/004-link}
    mksquashfs sqfs_test_files/ test.sqfs -noappend

Note that squashfs sorts the files ASCIIbetacally, so we can use the
names to control the order they appear in. The ordering is important -
the first reference to the file must have a lower inode number than the
directory in which the second reference resides, and the second
reference cannot be the first file in the directory.

Listing this sample image in U-Boot results in:

=> sqfsls virtio 2 002-subdir
         0   003-file
Inode not found.
         0   004-link

Signed-off-by: Campbell Suter <campbell@snapit.group>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>

John Keeping authored 3 years ago and Tom Rini committed 3 years ago

The "-E" option to mkimage generates a FIT with external data using the
data-size and data-offset properties which must both be ignored when
verifying a signature.

Add "data-offset" to the list of excluded properties for signature
verification; since the line is now too long, re-format the list to
one-per-line and make it static since the data is constant.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

The current stable release of LLVM is 12, update to that.  While at it,
fix that we had not correctly upgraded to LLVM 11 previously.

Signed-off-by: Tom Rini <trini@konsulko.com>

- SPI-NOR fix (Big Meng)
- XMC XM25QH64C flash (Reto Schneider)

Bin Meng authored 3 years ago and Jagan Teki committed 3 years ago

The DT bindings of "jedec,spi-nor" [1] defines "m25p,fast-read" property
to indicate that "fast read" opcode can be used to read data from the
chip instead of the usual "read" opcode.

If this property is not present in DT, mask out fast read in
spi_nor_init_params(). This change mirrors the same logic in
spi_nor_info_init_params() in drivers/mtd/spi-nor/core.c in
the Linux kernel v5.14-rc3.

[1] Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml in the kernel tree

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>

Bin Meng authored 3 years ago and Jagan Teki committed 3 years ago

The smart spi_nor_adjust_hwcaps() does not respect the SPI flash's
hwcaps, and only looks to the controller on what can be supported.

The flash's hwcaps needs to be AND'ed before checking.

Fixes: 71025f01 ("mtd: spi-nor-core: Rework hwcaps selection")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>

Bin Meng authored 3 years ago and Jagan Teki committed 3 years ago

When slave drivers don't set the max_read_size, the spi-mem should
directly use data.nbytes and not limit to any size. But current
logic will limit to the max_write_size.

This commit mirrors the same changes in the dm version done in
commit 535b1fdb ("spi: spi-mem: Fix read data size issue").

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>

Reto Schneider authored 3 years ago and Jagan Teki committed 3 years ago

This chip has been (briefly) tested on the MediaTek MT7688 based GARDENA
smart gateway.

Datasheet: http://xmcwh.com/Uploads/2020-12-17/XM25QH64C_Ver1.1.pdf


Signed-off-by: Reto Schneider <reto.schneider@husqvarnagroup.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>

- Fixed broken ICH SPI driver in software sequencer mode
- Added "m25p,fast-read" to SPI flash node for x86 boards
- Drop ROM_NEEDS_BLOBS and BUILD_ROM for x86 ROM builds
- Define a default TSC timer frequency for all x86 boards
- x86 MTRR MSR programming codes bug fixes
- x86 "hob" command bug fixes
- Don't program MTRR for DRAM for FSP1
- Move INIT_PHASE_END_FIRMWARE to FSP2
- Use external graphics card by default on Intel Crown Bay
- tangier: Fix DMA controller IRQ polarity in CSRT

- Merge in a series that cleans up and makes more consistent how we deal
  with numeric input on the CLI.  This saves a few bytes in a lot of
  places.

Simon Glass authored 3 years ago and Tom Rini committed 3 years ago

U-Boot mostly uses hex for value input, largely because addresses are much
easier to understand in hex.

But in some cases a decimal value is requested, such as where the value is
small or hex does not make sense in the context. In these cases it is
sometimes useful to be able to provide a hex value in any case, if only to
resolve any ambiguity.

Add this functionality, for increased flexibility.

Signed-off-by: Simon Glass <sjg@chromium.org>

Simon Glass authored 3 years ago and Tom Rini committed 3 years ago

Mention the default base of U-Boot in the command-line section. Add
examples for decimal and octal.

Signed-off-by: Simon Glass <sjg@chromium.org>

Simon Glass authored 3 years ago and Tom Rini committed 3 years ago

Take this part of the README and put it into rST format.

Signed-off-by: Simon Glass <sjg@chromium.org>

Simon Glass authored 3 years ago and Tom Rini committed 3 years ago

The code to convert a character into a digit is repeated twice in this
file. Factor it out into a separate function. This also makes the code a
little easier to read.

Signed-off-by: Simon Glass <sjg@chromium.org>

Simon Glass authored 3 years ago and Tom Rini committed 3 years ago

This function support decoding octal but no tests are included yet.
Add some.

Signed-off-by: Simon Glass <sjg@chromium.org>

Simon Glass authored 3 years ago and Tom Rini committed 3 years ago

Add some tests that check the behaviour of this function. These are the
same as for simple_strtoul() but with a few longer values.

Signed-off-by: Simon Glass <sjg@chromium.org>

Simon Glass authored 3 years ago and Tom Rini committed 3 years ago

If we see 0x then we can assume this is the start of a hex value. It
does not seem necessary to check for a hex digit after that since it will
happen when parsing the value anyway.

Drop this check to simplify the code and reduce size. Add a few more test
cases for when a 0x prefix is used.

Signed-off-by: Simon Glass <sjg@chromium.org>