This last minute pull-request is intended to fix some drivers
when used on ARC boards. The problem was introduced by
07906b3dad
What happened while doing one pretty simple improvement to make
U-Boot port more flexible and portable (by switching accessors from
assembly-written to plain C version) we implicitly added 2 problems:
1. Downgraded accessors from being volatile which signalled to
the compiler that it's now possible to do all kinds of optimizations
which may easily include merge of subsequent byte reads/writes into
word operations. Which is OK for accessing mormal memory but
breaks operation of peripherals if we access its memory-mapped regs
in such a "creative" manner.
2. As a part of assembly-written implementation we had compiler barriers
in form of the following construction 'asm volatile("" : : : "memory")',
and we dropped it in C implemntation. This in its turn enabled compiler
to mess with instruction ordering. Guess what it gives us in the end :)
So with all that we had in some corner-cases veeery funny instruction flows
generated. And in particular it broke DW SPI functionality when we were
writing large amount of data. Funny enough our tests which were writing
small amount of data still worked and only by the chance we caught that
breakage and unrolled that quite interesting loop of unexpected
problems.
The road to hell is paved with good intentions. Amen :)
We add memory barriers for __raw_readX / __raw_writeX accessors same
way as it is done for readX and writeX accessors as lots of U-boot
driver uses __raw_readX / __raw_writeX instead of proper accessor
with barrier.
It will save us from lot's of debugging in the future and it is OK
as U-Boot is not that performance oriented as real run-time
software like OS or user bare-metal app so we may afford being not
super fast as we only being executed once.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
We must use compiler barriers in C-version read/write IO accessors
before and after operation (read or write) so it won't be reordered
by compiler.
Fixes commit 07906b3dad ("ARC: Switch to generic accessors")
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
We must use 'volatile' in C-version read/write IO accessors
implementation to avoid merging several reads (writes) into
one read (write), or optimizing them out by compiler.
Fixes commit 07906b3dad ("ARC: Switch to generic accessors")
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
When MACB_ZYNQ is enabled there is compilation warnings
drivers/net/macb.c: In function ‘_macb_init’:
drivers/net/macb.h:675:33: error: ‘MACB_DMACFG’ undeclared (first use in this function);
did you mean ‘MACB_MCF’?
writel((value), (port)->regs + MACB_##reg)
^~~~~
It has been caused by changing macros name by commit below.
Fixes: 6c636514d4 ("net: macb: sync header definitions as taken from Linux")
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Not all boards have the same CSB frequency, nor do every SPI slave
necessarily support running at 16.7 MHz. So implement ->set_speed;
that also allows using a smaller PM (i.e., 0) for slaves that do
support a higher speed.
Based on work by Klaus H. Sørensen.
Cc: Klaus H. Sorensen <khso@prevas.dk>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
There are a few problems with the current driver.
First, it unconditionally reads from dout/writes to din whether or not
those pointers are NULL. So for example a simple "sf probe" ends up
writing four bytes at address 0:
=> md.l 0x0 8
00000000: 45454545 45454545 05050505 05050505 EEEEEEEE........
00000010: 00000000 00000000 07070707 07070707 ................
=> sf probe 0
mpc8xxx_spi_xfer: slave spi@7000:0 dout 0FB53618 din 00000000 bitlen 8
mpc8xxx_spi_xfer: slave spi@7000:0 dout 00000000 din 0FB536B8 bitlen 48
SF: Detected s25sl032p with page size 256 Bytes, erase size 64 KiB, total 4 MiB
=> md.l 0x0 8
00000000: ff000000 45454545 05050505 05050505 ....EEEE........
00000010: 00000000 00000000 07070707 07070707 ................
(here I've change the first debug statement to a printf, and made it
print the din/dout pointers rather than the uints they point at).
Second, as we can also see above, it always writes a full 32 bits,
even if a smaller amount was requested. So for example
=> mw.l $loadaddr 0xaabbccdd 8
=> md.l $loadaddr 8
02000000: aabbccdd aabbccdd aabbccdd aabbccdd ................
02000010: aabbccdd aabbccdd aabbccdd aabbccdd ................
=> sf read $loadaddr 0x400 6
device 0 offset 0x400, size 0x6
mpc8xxx_spi_xfer: slave spi@7000:0 dout 0FB536E8 din 00000000 bitlen 40
mpc8xxx_spi_xfer: slave spi@7000:0 dout 00000000 din 02000000 bitlen 48
SF: 6 bytes @ 0x400 Read: OK
=> sf read 0x02000010 0x400 8
device 0 offset 0x400, size 0x8
mpc8xxx_spi_xfer: slave spi@7000:0 dout 0FB53848 din 00000000 bitlen 40
mpc8xxx_spi_xfer: slave spi@7000:0 dout 00000000 din 02000010 bitlen 64
SF: 8 bytes @ 0x400 Read: OK
=> md.l $loadaddr 8
02000000: 45454545 45450000 aabbccdd aabbccdd EEEEEE..........
02000010: 45454545 45454545 aabbccdd aabbccdd EEEEEEEE........
Finally, when the bitlen is 24 mod 32 (e.g. requesting to read 3 or 7
bytes), the last three bytes and up being the wrong ones, since the
driver does a full 32 bit read and then shifts the wrong byte out:
=> mw.l $loadaddr 0xaabbccdd 4
=> md.l $loadaddr 4
02000000: aabbccdd aabbccdd aabbccdd aabbccdd ................
=> sf read $loadaddr 0x444 10
device 0 offset 0x444, size 0x10
mpc8xxx_spi_xfer: slave spi@7000:0 dout 0FB536E8 din 00000000 bitlen 40
mpc8xxx_spi_xfer: slave spi@7000:0 dout 00000000 din 02000000 bitlen 128
SF: 16 bytes @ 0x444 Read: OK
=> md.l $loadaddr 4
02000000: 552d426f 6f742032 3031392e 30342d30 U-Boot 2019.04-0
=> mw.l $loadaddr 0xaabbccdd 4
=> sf read $loadaddr 0x444 0xb
device 0 offset 0x444, size 0xb
mpc8xxx_spi_xfer: slave spi@7000:0 dout 0FB536E8 din 00000000 bitlen 40
mpc8xxx_spi_xfer: slave spi@7000:0 dout 00000000 din 02000000 bitlen 88
SF: 11 bytes @ 0x444 Read: OK
=> md.l $loadaddr 4
02000000: 552d426f 6f742032 31392e00 aabbccdd U-Boot 219......
Fix all of that by always using a character size of 8, and reject
transfers that are not a whole number of bytes. While it ends being
more work for the CPU, we're mostly bounded by the speed of the SPI
bus, and we avoid writing to the mode register in every loop.
Based on work by Klaus H. Sørensen.
Cc: Klaus H. Sorensen <khso@prevas.dk>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Currently, max_cs is write-only; it's just set in
mpc8xxx_spi_ofdata_to_platdata and not otherwise used.
My mpc8309 was always resetting during an "sf probe 0". It turns out
dm_gpio_set_dir_flags() was being called with garbage, since nothing
had initialized priv->gpios[0] - our device tree used "cs-gpios"
rather than "gpios", so gpio_request_list_by_name() had returned 0.
That would have been a lot easier to figure out if the chip select
index was sanity checked, so rename max_cs to cs_count, and reject a
xfer with a too large cs index.
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Some SoCs in the mpc83xx family, e.g. mpc8309, have a dedicated spi
chip select, SPISEL_BOOT, that is used by the boot code to boot from
flash.
This chip select will typically be used to select a SPI boot
flash. The SPISEL_BOOT signal is controlled by a single bit in the
SPI_CS register.
Implement a gpio driver for the spi chip select register. This allows a
spi driver capable of using gpios as chip select, to bind a chip select
to SPISEL_BOOT.
It may be a little odd to do this as a GPIO driver, since the signal
is neither GP or I, but it is quite convenient to present it to the
spi driver that way. The alternative it to teach mpc8xxx_spi to handle
the SPISEL_BOOT signal itself (that is how it's done in the linux
kernel, see commit 69b921acae8a)
Signed-off-by: Klaus H. Sorensen <khso@prevas.dk>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
The driver correctly handles reading back the value of an output gpio
by reading from the shadow register for output, and from gpdat for
inputs.
Unfortunately, when setting the value of some gpio, we do a RMW cycle
on the gpdat register without taking the shadow register into account,
thus accidentally setting other output gpios (at least those whose
value cannot be read back) to 0 at the same time.
When changing a gpio from input to output, we still need to make sure
it initially has the requested value. So, the procedure is
- update the shadow register
- compute the new gpdir register
- write the bitwise and of the shadow and new gpdir register to gpdat
- write the new gpdir register
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Since some chips don't support reading back the value of output gpios
from the gpdat register, we should not do a RMW cycle (i.e., the
clrbits_be32) on the gpdat register when setting a gpio as input, as
that might accidentally change the value of some other (still
configured as output) gpio.
The extra indirection through mpc8xxx_gpio_set_in() does not help
readability, so just fold the gpdir update into
mpc8xxx_gpio_direction_input().
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
This adds the check against IH_OS_VXWORKS during FIT image load,
to allow loading FIT image for VxWorks.
Signed-off-by: Lihua Zhao <lihua.zhao@windriver.com>
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This series fixes:
* UEFI Python tests CONFIG_OF_CONTROL=y.
* int to pointer cast warning for cmd/efidebug.c
* memory reservation even if fdt node is disabled
Now that the Python test is fixed reintroduce the reverted patch for
vexpress_ca9x4 to enable EFI_LOADER and define the dtb file name.
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Merge tag 'efi-2020-04-rc5' of https://gitlab.denx.de/u-boot/custodians/u-boot-efi
Pull request for UEFI sub-system for efi-2020-04-rc5
This series fixes:
* UEFI Python tests CONFIG_OF_CONTROL=y.
* int to pointer cast warning for cmd/efidebug.c
* memory reservation even if fdt node is disabled
Now that the Python test is fixed reintroduce the reverted patch for
vexpress_ca9x4 to enable EFI_LOADER and define the dtb file name.
Add save_boot_params() to save reset status value from bootrom.
Bootrom will clear the status register in reset manager and stores the
reset status value in shared memory. Bootrom stores shared data at last
2KB of onchip RAM.
This function save reset status provided by bootrom to rst_mgr_status.
More information about reset status register value can be found in reset
manager register description.
When running in debugger without bootrom, r0 to r3 are random values.
So, skip save the value when r0 is not bootrom shared data address.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
With CONFIG_OF_CONTROL environment variable $fdtcontroladdr is not defined
and test_efi_grub_net() fails.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
If the DM_ETH is enabled, the board-specific ethernet registeration
should be disabled, make it so.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Add code to reset the board through PMIC, by writing the required
PMIC registers in the CPU reset handler.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Configure RX and TX bus-width values to use flexspi in octal I/O mode.
If bus-widths are not specified, then single I/O mode is set by default.
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Configure RX and TX bus-width values to use flexspi in octal I/O mode.
If bus-widths are not specified, then single I/O mode is set by default.
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
MC_INIT and BOOT command currently access spi-nor flash memory directly.
As per spi-mem framework, flash memory access via absolute addresses is
no more possible. Use flash APIs to access memory instead of directly
using it.
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
CONFIG_ENV_ADDR helps in picking environment from flash before DDR init.
Define the value as 0x20500000 for lx2160ardb and lx2160aqds.
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Enable FSPI controller support. So, flash environment can now be used.
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
lx2160a-qds has 2 micron "mt35xu512aba" flashes of size 64M each
connected on A0 and B1 i.e on CS0 and CS3. Since flashes are connected
on different buses, only one flash can be probed at a time.
Add fspi node properties aligned with LX2160A-RDB fspi properties.
Signed-off-by: Kuldeep Singh <kuldeep.singh@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Adjust environment kernel_addr_r from 0x96000000 to 0x92000000
to fix a bug that failed to boot kernel for ls1012afrwy with 512MiB RAM,
=> tftpboot $kernel_addr_r Image (Image size is 36 MiB)
TFTP error: trying to overwrite reserved memory...
Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
This patch appends othbootargs to bootargs for LS1021ATWR board.
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
The eMMC HS200 speed mode on Layerscape platforms has not been
supported properly. The eSDHC clock tuning has not been implemented
by now. So disable it until it is supported properly in case of
any potential issues.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Add config to enable the PFE and ETH support.
Also change the pfe secure boot header address.
Signed-off-by: Priyanka Singh <priyanka.singh@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Enable CONFIG_DM_USB to remove below compile warning:
===================== WARNING ======================
This board does not use CONFIG_DM_USB. Please update
the board to use CONFIG_DM_USB before the v2019.07 release.
Failure to update by the deadline may result in board removal.
See doc/driver-model/migration.rst for more info.
====================================================
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
With DM_USB enabled, enable CONFIG_BLK to remove this
compile warning for ls1012afrdm based targets:
===================== WARNING ======================
This board does not use CONFIG_DM_USB. Please update
the board to use CONFIG_DM_USB before the v2019.07 release.
Failure to update by the deadline may result in board removal.
See doc/driver-model/migration.rst for more info.
====================================================
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
This supports i2c DM and enables CONFIG_DM_I2C
for SoC LS1046A
Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
This supports i2c DM and enables CONFIG_DM_I2C
for SoC LS1043A
Signed-off-by: Biwen Li <biwen.li@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Move the environment variables from command head file to
ls1028ardb specific head file so that they will not mess
up with ls1028aqds board.
Also updated some variable slightly.
There is no function change by this patch.
Signed-off-by: Yuantian Tang <andy.tang@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
The SDHC1_DAT4 signal could be routes to SDHC1_VS or SDHC1
adapter slot for SDHC1 usage. When SDHC1 is selected in RCW,
do not force to route it to SDHC1 adapter slot if find it
has already been configued for SDHC1_VS.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
The pci-host-ecam-generic code assumes that the ECAM is the first PCI
bus in the system to be probed. Therefore, the system-wide bus number
allocated by U-Boot in sequence for it is going to be zero, which
corresponds to the memory-mapped config spaces found within it.
Reuse the logic from other PCI bus drivers, and assume that U-Boot will
allocate bus numbers in sequence for all buses within the current ECAM.
So the base number of the bus needs to be subtracted when indexing the
correct config space.
Fixes: 3675cb044e ("PCI: Add driver for a 'pci-host-ecam-generic' host controller")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Alex Marginean <alexandru.marginean@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
The old load address of itb will overwrite uboots reserved memory
on ls1012afrwy with 512 MiB ram
Signed-off-by: Biwen Li <biwen.li@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
