Commit graph

19273 commits

Author SHA1 Message Date
Dario Binacchi
b1aef0384f clk: ti: add custom API for memory access
As pointed by [1] and [2], commit
d64b9cdcd4 ("fdt: translate address if #size-cells = <0>") is wrong:
- It makes every 'reg' DT property translatable. It changes the address
  translation so that for an I2C 'reg' address you'll get back as reg
  the I2C controller address + reg value.
- The quirk must be fixed with platform code.

The clk_ti_get_reg_addr() is the platform code able to make the correct
address translation for the AM33xx clocks registers. Its implementation
was inspired by the Linux Kernel code.

[1] https://patchwork.ozlabs.org/project/uboot/patch/1614324949-61314-1-git-send-email-bmeng.cn@gmail.com/
[2] https://lore.kernel.org/linux-clk/20210402192054.7934-1-dariobin@libero.it/T/

Signed-off-by: Dario Binacchi <dariobin@libero.it>
2021-05-12 16:27:57 +05:30
Tom Rini
07b53103b7 Merge https://source.denx.de/u-boot/custodians/u-boot-riscv 2021-05-07 08:57:32 -04:00
Dylan Jhong
1412b8d48a atcspi200: Add timeout mechanism in spi_xfer()
Adding timeout mechanism to avoid spi driver from stucking
in the while loop in __atcspi200_spi_xfer().

Signed-off-by: Dylan Jhong <dylan@andestech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
Reviewed-by: Rick Chen <rick@andestech.com>
2021-05-05 16:12:14 +08:00
Sean Anderson
54aa07fdfc sysinfo: Add gpio-sysinfo driver
This uses the newly-added dm_gpio_get_values_as_int_base3 function to
implement a sysinfo device. The revision map is stored in the device tree.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-05-04 07:57:18 -04:00
Sean Anderson
4d65c6bcd7 sysinfo: Require that sysinfo_detect be called before other methods
This has the uclass enforce calling detect() before other methods.  This
allows drivers to cache information in detect() and perform (cheaper)
retrieval in the other accessors. This also modifies the only instance
where this sequencing was not followed.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-05-04 07:57:18 -04:00
Sean Anderson
eed0a7a3e6 sysinfo: Use global sysinfo IDs for existing sysinfo drivers
Since 07c9e683a4 ("smbios: Allow a few values to come from sysinfo")
there are common global sysinfo IDs. This patch moved existing IDs above
SYSINFO_ID_USER.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-05-04 07:57:18 -04:00
Sean Anderson
430e136dc1 dm: gpio: Fix gpio_get_list_count failing with livetree
of_parse_phandle_with_args (called by dev_read_phandle_with_args) does not
support getting the length of a phandle list by using the index -1.
Instead, use dev_count_phandle_with_args which supports exactly this
use-case.

Fixes: 8558217153 ("gpio: Convert to use APIs which support live DT")

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-05-04 07:57:18 -04:00
Tom Rini
8ddaf94358 buildman environment fix
binman FMAP improvements
 minor test improvements and fixes
 minor dm improvements
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Merge tag 'dm-pull-29apr21' of https://source.denx.de/u-boot/custodians/u-boot-dm

buildman environment fix
binman FMAP improvements
minor test improvements and fixes
minor dm improvements
2021-04-29 21:03:38 -04:00
Tom Rini
f3a0d2c1af Xilinx changes for v2021.07-rc2
xilinx:
 - Enable saving variables based on bootmode
 - Cleanup usb dfu setup and wire it up with usb bootmode
 - Fix bootscript address logic
 - Remove GD references (spi, Versal)
 - Enable capsule update
 
 clk:
 - Small Kconfig fix
 
 net:
 - Fix gmii2rgmii bridge binding
 
 usb:
 - Propagate error (dfu gadget)
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Merge tag 'xilinx-for-v2021.07-rc2' of https://source.denx.de/u-boot/custodians/u-boot-microblaze

Xilinx changes for v2021.07-rc2

xilinx:
- Enable saving variables based on bootmode
- Cleanup usb dfu setup and wire it up with usb bootmode
- Fix bootscript address logic
- Remove GD references (spi, Versal)
- Enable capsule update

clk:
- Small Kconfig fix

net:
- Fix gmii2rgmii bridge binding

usb:
- Propagate error (dfu gadget)
2021-04-29 11:31:06 -04:00
Michal Simek
b00bad9dc8 spi: zynqmp: Remove gd reference
gd is not used in this file that's why doesn't make sense to declare it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2021-04-29 14:48:31 +02:00
Tom Rini
3d2f8bc673 Merge https://source.denx.de/u-boot/custodians/u-boot-cfi-flash
- mtd: cfi: Fix PPB lock status readout (Marek)
2021-04-29 08:22:17 -04:00
Tom Rini
a26522e774 Merge https://source.denx.de/u-boot/custodians/u-boot-marvell
- Add base support for Marvell OcteonTX2 CN9130 CRB (mostly done
  by Kostya)
- Sync Armada 3k/7k/8k SERDES code with Marvell version (misc Marvell
  authors)
- pci-aardvark: Fix processing PIO transfers (Pali)
2021-04-29 08:21:55 -04:00
Chen Guanqiao
aa351a14bd dm: core: Add size operations on device tree references
Add functions to add size of addresses in the device tree using ofnode
references.

If the size is not set, return FDT_SIZE_T_NONE.

Signed-off-by: Chen Guanqiao <chenguanqiao@kuaishou.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-04-29 03:23:39 -07:00
Sean Anderson
6784cb35f5 dm: core: Fix uninitialized return value from dm_scan_fdt_node
If there are no nodes or if all nodes are disabled, this function would
return err without setting it first. Fix this by initializing err to
zero.

Fixes: 94f7afdf7e ("dm: core: Ignore disabled devices when binding")

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-04-29 03:23:39 -07:00
Patrick Delaunay
feb7ac457c dm: core: Add address translation in fdt_get_resource
Today of_address_to_resource() is called only in
ofnode_read_resource() for livetree support and
fdt_get_resource() is called when livetree is not supported.

The fdt_get_resource() doesn't do the address translation
so when it is required, but the address translation is done
by ofnode_read_resource() caller, for example in
drivers/firmware/scmi/smt.c::scmi_dt_get_smt_buffer() {
...
	ret = ofnode_read_resource(args.node, 0, &resource);
	if (ret)
		return ret;

	faddr = cpu_to_fdt32(resource.start);
	paddr = ofnode_translate_address(args.node, &faddr);
...

The both behavior should be aligned and the address translation
must be called in fdt_get_resource() and removed for each caller.

Fixes: a44810123f ("dm: core: Add dev_read_resource() to read device resources")
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
2021-04-29 03:23:39 -07:00
Michal Simek
0a9f0e0d00 net: phy: xilinx: Break while loop over ethernet phy
The commit 6c993815bb ("net: phy: xilinx: Be compatible with live OF
tree") change driver behavior to while loop which wasn't correct because
the driver was looping over again and again. The reason was that
ofnode_valid() is taking 0 as correct value.
Fix it by changing while loop to ofnode_for_each_subnode() which is only
loop over available nodes.

Fixes: 6c993815bb ("net: phy: xilinx: Be compatible with live OF tree")
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2021-04-29 10:05:56 +02:00
Pali Rohár
eccbd4ad8e arm: a37xx: pci: Fix processing PIO transfers
Trying to clear PIO_START register when it is non-zero (which indicates
that previous PIO transfer has not finished yet) causes an External
Abort with SError 0xbf000002.

This bug is currently worked around in TF-A by handling External Aborts
in EL3 and ignoring this particular SError.

This workaround was also discussed at:
https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/commit/?id=3c7dcdac5c50
https://lore.kernel.org/linux-pci/20190316161243.29517-1-repk@triplefau.lt/
https://lore.kernel.org/linux-pci/971be151d24312cc533989a64bd454b4@www.loen.fr/
https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/1541

Implement a proper fix to prevent this External Abort. As it is not
possible to cancel a pending PIO transfer, simply do not start a new one
if previous has not finished yet. In this case return an error to the
caller.

In most cases this SError happens when there is no PCIe card connected
or when PCIe link is down. The reason is that in these cases a PIO
transfer takes about 1.44 seconds. For this reason we also increase the
wait timeout in pcie_advk_wait_pio() to 1.5 seconds.

If PIO read transfer for PCI_VENDOR_ID register times out, or if it
isn't possible to read it yet because previous transfer is not finished,
return Completion Retry Status value instead of failing, to give the
caller a chance to send a new read request.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
2021-04-29 07:45:43 +02:00
Grzegorz Jaszczyk
82c30736ae phy: marvell: utmi: update utmi config which fixes usb2.0 instability
- Add additional step which enables the Impedance and PLL calibration.
- Enable old squelch detector instead of the new analog squelch detector
circuit and update host disconnect threshold value.
- Update LS TX driver strength coarse and fine adjustment values.

Change-Id: Ifa0a585bfb5ecab0bfa033eed6874ff98b16a7df
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
2021-04-29 07:45:24 +02:00
Igal Liberman
341e548eb8 phy: marvell: add support for SFI1
In CP115, comphy4 can be configured into SFI port1
(in addition to SFI0). This patch adds the option
described above.

In addition, rename all existing SFI/XFI references:
COMPHY_TYPE_SFI --> COMPHY_TYPE_SFI0

No functional change for exsiting configuration.

Change-Id: If9176222e0080424ba67347fe4d320215b1ba0c0
Signed-off-by: Igal Liberman <igall@marvell.com>
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
2021-04-29 07:45:24 +02:00
Grzegorz Jaszczyk
a007f23626 phy: marvell: fix pll initialization for second utmi port
According to Design Reference Specification the PHY PLL and Calibration
register from PHY0 are shared for multi-port PHY. PLL control registers
inside other PHY channels are not used.

This commit reworks utmi device tree nodes in a way that common PHY PLL
registers are moved to main utmi node. Accordingly both child nodes
utmi-unit range is reduced and register offsets in utmi_phy.h are updated
to this change.

This fixes issues in scenarios when only utmi port1 was in use, which
resulted with lack of correct pll initialization.

Change-Id: Icc520dfa719f43a09493ab31f671efbe88872097
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
2021-04-29 07:45:24 +02:00
Grzegorz Jaszczyk
76342ac5c8 phy: marvell: allow to initialize up to 6 USB ports
New products can contain up to 6 usb ports, therefore allow to initialize
all relevant UTMI PHYs.

Change-Id: I28c36e59fa0e3e338bb3ee0cee2240b923f39785
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Reviewed-by: Kostya Porotchkin <Kostya.Porotchkin@cavium.com>
2021-04-29 07:45:24 +02:00
Igal Liberman
80ebc63cc9 phy: marvell: cp110: mark u-boot power-off calls
It helps ATF to determine who called power off
function (U-boot/Linux) and act accordingly

Change-Id: Icfc5cbfdba64754496812154272b28c0ff639f0f
Signed-off-by: Igal Liberman <igall@marvell.com>
Reviewed-by: Grzegorz Jaszczyk <jaz@semihalf.com>
2021-04-29 07:45:24 +02:00
Christine Gharzuzi
f596b01b9a phy: marvell: fix handling of unconnected comphy
- the default value of comphy pipe selector is set to PCIe (x4)
  in case of unconnected comphy the default value remains 0x4
  which may lead to several issues with comphy initialization.

- this patch adds SMC call that powers off the comphy lane in case of
  unconnected comphy.

Change-Id: I196b2916518dd8df3b159ffa85e2989b8e483087
Signed-off-by: Christine Gharzuzi <chrisg@marvell.com>
Signed-off-by: Igal Liberman <igall@marvell.com>
Reviewed-by: Grzegorz Jaszczyk <jaz@semihalf.com>
2021-04-29 07:45:24 +02:00
Igal Liberman
5f41aaf4c3 phy: marvell: pass sgmii id to firmware
Currently, we don't pass id for SGMII 0/1.
A bug in comphy selector configuration was found (in comphy
firmware), after fixing it, SGMII0/1 have different configuration,
so we need to pass the ID the firmware.

Change-Id: Idcff4029cc9cf018278e493221b64b33574e0d38
Signed-off-by: Igal Liberman <igall@marvell.com>
Reviewed-by: Grzegorz Jaszczyk <jaz@semihalf.com>
2021-04-29 07:45:24 +02:00
Grzegorz Jaszczyk
cd2caff77f phy: marvell: cp110: clean up driver after it was moved to atf
Change-Id: I358792a96c13b54e700c05227cc7a8f6bd584694
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Reviewed-by: Igal Liberman <igall@marvell.com>
2021-04-29 07:45:24 +02:00
Grzegorz Jaszczyk
affd61f51c phy: marvell: cp110: remove both phy and pipe selector configuration
Now the comphy configuration is handled in atf, therefore there is no
need to configure phy or pipe selector in u-boot, it is configured by
atf for each particular pair: lane and mode.

Change-Id: I0bebf8d5ff66dbeb6bf9ef90876195938a8eb705
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Reviewed-by: Igal Liberman <igall@marvell.com>
2021-04-29 07:45:24 +02:00
Grzegorz Jaszczyk
2e28b597fa phy: marvell: cp110: let the firmware perform training for XFI
Replace the XFI training with appropriate SMC call, so the firmware will
perform exact initialization.

Update Stefan 2021-03-23:
Move comphy_smc() function to an earlier place - necessary for the
mainline merge.

Change-Id: I789b130b05529dc80dadcf66aef407d93595b762
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Igal Liberman <igall@marvell.com>
2021-04-29 07:45:24 +02:00
Grzegorz Jaszczyk
f635c3b3a2 phy: marvell: cp110: let the firmware configure comphy for USB
Replace the comphy initialization for USB with appropriate SMC call,
so the firmware will execute required serdes configuration.

Change-Id: I7f773c0dfac70db9dd2653de2cdcfac577e78c4e
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
2021-04-29 07:45:24 +02:00
Grzegorz Jaszczyk
26d9763f3b phy: marvell: cp110: let the firmware configure comphy for RXAUI
Replace the comphy initialization for RXAUI with appropriate SMC call,
so the firmware will execute required serdes configuration.

Change-Id: Iedae0285fb283e05bb263a8b4ce46e8e7451a309
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Reviewed-by: Igal Liberman <igall@marvell.com>
2021-04-29 07:45:24 +02:00
Marcin Wojtas
5ed3dc27bb phy: marvell: cp110: remove unused definitions
Even if comphy types of SATA2/SATA3/SGMII3 and comphy speeds of
1.5G/3G/6.25G were referenced in the driver non configuration (dts)
was using it.

This patch removes unused definitions.

Change-Id: I53ed6f9d3a82b9d18cb4e488bc14d3cf687f9488
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
2021-04-29 07:45:24 +02:00
Igal Liberman
b21e1f36d4 phy: marvell: enable comphy info prints for all devices
Change-Id: I3b97253e7102a0868440a9e0200acc1c7919c743
Signed-off-by: Igal Liberman <igall@marvell.com>
2021-04-29 07:45:24 +02:00
Igal Liberman
e49cdbe10b phy: marvell: add RX training command
This patch adds support for running RX training using new command called
"rx_training"
Usage:
rx_training - rx_training <cp id> <comphy id>

RX training allows to improve link quality (for SFI mode)
by running training sequence between us and the link partner,
this allows to reach better link quality then using static configuration.

Change-Id: I818fe67ccaf19a87af50d4c34a9db7d6802049a5
Signed-off-by: Igal Liberman <igall@marvell.com>
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
2021-04-29 07:45:24 +02:00
Igal Liberman
7b27e608f8 phy: marvell: save comphy_map_data priv structure
This allows the lower level driver access to comphy map data
(required for RX training support, which is introduced
in the following patches).

Change-Id: Ib7ffdc4b32076c01c3a5d33f59552c9dfc6b12fa
Signed-off-by: Igal Liberman <igall@marvell.com>
2021-04-29 07:45:24 +02:00
Igal Liberman
c2bf42f5fd phy: marvell: fix several minor bugs in comphy_probe
If fdtdec_get_int can't find speed, set COMPHY_SPEED_INVALID
If fdtdec_get_int can't find type, set COMPHY_TYPE_INVALID
Move the error print if phy-type is invalid
Add continue to the probe loop (in a case of invalid phy)
Cosmetic changes

Change-Id: I0c61b40bfe685437426fe907942ed338b7845378
Signed-off-by: Igal Liberman <igall@marvell.com>
2021-04-29 07:45:24 +02:00
Igal Liberman
3e69b4abff phy: marvell: cp110: utmi: update analog parameters according to latest ETP
Add UTMI analog parameters initialization values according to
latest ETP.

Change-Id: I5bcca205a3995202a18ff126f371a81f69e205c8
Signed-off-by: Igal Liberman <igall@marvell.com>
2021-04-29 07:45:24 +02:00
Omri Itach
22bc868e49 phy: marvell: cp110: initialize only enabled UTMI units
UTMI should be initialized only for enabled device tree nodes.

This fix overrides current internal configuration array
entry with the next DT entry data if error is detected
during the current DT entry parsing or the current port
is disabled.

This way the internal configuration structure will only
contain valid ports information obtained from the DT.

Change-Id: I9c43c6a5d234e15ae9005d1c9bc983fc1f3544b8
Signed-off-by: Omri Itach <omrii@marvell.com>
Signed-off-by: Ken Ma <make@marvell.com>
2021-04-29 07:45:24 +02:00
Igal Liberman
89351ba4c8 phy: marvell: add missing speed during info prints
In get_speed_string() we have an array (speed_strings[])
which includes all possible speed strings.
This array size and content must be aligned to the speed
defines in comphy_data.h.

This patch adds missing 5.125G speed, aligns speed_strings[]
and fixes incorrect printing when speed > 5.0G.

Change-Id: I9900d23595094be321be0c62fcaa88036324568e
Signed-off-by: Igal Liberman <igall@marvell.com>
2021-04-29 07:45:24 +02:00
Igal Liberman
2dbba24088 phy: marvell: rename comphy related definitions to COMPHY_XX
Currently, all comphy definitions are PHY_TYPE_XX and PHY_SPEEED_XX.
Those definition might be confused with MDIO PHY definitions.

This patch does the following changes:
 - PHY_TYPE_XX --> COMPHY_TYPE_XX
 - PHY_SPEED_XX --> COMPHY_SPEED_XX

This improves readability, no functional change.

Change-Id: I2bd1d9289ebbc5c16fa80f9870f797ea1bcaf5fa
Signed-off-by: Igal Liberman <igall@marvell.com>
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
2021-04-29 07:45:24 +02:00
jinghua
4568e2041c phy: marvell: add comphy type PHY_TYPE_USB3
- For some Marvell SoCs, like armada-3700, there are both
  USB host and device controller, but on PHY level the
  configuration is the same.
- The new type supports both USB device and USB host
- This patch is cherry-picked from u-boot-2015 as-is.

Change-Id: I01262027edd8ec23391cff6fb409b3009aedfbb9
Signed-off-by: jinghua <jinghua@marvell.com>
Signed-off-by: Ken Ma <make@marvell.com>
Reviewed-by: Igal Liberman <igall@marvell.com>
2021-04-29 07:45:23 +02:00
Konstantin Porotchkin
fec8c900c8 power: regulator: Add support for regulator-force-boot-off
Add support for regulator-force-boot-off DT property.
This property can be used by the board/device drivers for
turning off regulators on early init stages as pre-requisite
for the other components initialization.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2021-04-29 07:38:57 +02:00
Tom Rini
c306b24948 Merge https://source.denx.de/u-boot/custodians/u-boot-usb 2021-04-28 18:35:54 -04:00
Neil Armstrong
98b8204626 net: designware: fix PHY reset with DM_MDIO
The dw_eth_pdata is not accessible from the mdio device, it gets the mdio bus plat
leading to random sleeps (-10174464 on Odroid-HC4).

This moves the dw_mdio_reset function to a common one taking the ethernet
device as parameter and use it from the dw_mdio_reset and dm_mdio variant functions.

Fixes: 5160b4567c ("net: designware: add DM_MDIO support")
Reported-by: Mark Kettenis <mark.kettenis@xs4all.nl>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
2021-04-28 17:45:26 +02:00
Marek Vasut
53396d67ba usb: ehci-mx6: Limit PHY address parsing to !CONFIG_PHY
For systems which use generic PHY support and implement USB PHY driver,
the parsing of PHY properties is unnecessary, disable it.

Signed-off-by: Marek Vasut <marex@denx.de>
Tested-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Ye Li <ye.li@nxp.com>
Cc: uboot-imx <uboot-imx@nxp.com>
2021-04-28 17:16:18 +02:00
Marek Vasut
94657482f3 mtd: cfi: Fix PPB lock status readout
According to S26KL512S datasheet [1] and S29GL01GS datasheet [2],
the procedure to read out PPB lock bits is to send the PPB Entry,
PPB Read, Reset/ASO Exit. Currently, the code does send incorrect
PPB Entry, PPB Read and Reset/ASO Exit is completely missing.

The PPB Entry sent is implemented by sending flash_unlock_seq()
and flash_write_cmd(..., FLASH_CMD_READ_ID). This translates to
sequence 0x555:0xaa, 0x2aa:0x55, 0x555:0x90=FLASH_CMD_READ_ID.
However, both [1] and [2] specify the last byte of PPB Entry as
0xc0=AMD_CMD_SET_PPB_ENTRY instead of 0x90=FLASH_CMD_READ_ID,
that is  0x555:0xaa, 0x2aa:0x55, 0x555:0xc0=AMD_CMD_SET_PPB_ENTRY.
Since this does make sense, this patch fixes it and thus also
aligns the code in flash_get_size() with flash_real_protect().

The PPB Read returns 00h in case of Protected state and 01h in case
of Unprotected state, according to [1] Note 83 and [2] Note 17, so
invert the result. Moreover, align the arguments with similar code
in flash_real_protect().

Finally, Reset/ASO Exit command should be executed to exit the PPB
mode, so add the missing reset.

[1] https://www.cypress.com/file/213346/download
    Document Number: 001-99198 Rev. *M
    Table 40. Command Definitions, Nonvolatile Sector Protection
    Command Set Definitions
[2] https://www.cypress.com/file/177976/download
    Document Number: 001-98285 Rev. *R
    Table 7.1 Command Definitions, Nonvolatile Sector Protection
    Command Set Definitions

Fixes: 03deff433e ("cfi_flash: Read PPB sector protection from device for AMD/Spansion chips")
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Stefan Roese <sr@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
2021-04-28 10:29:36 +02:00
Neil Armstrong
b669db869b reset: fix reset_get_by_index_nodev index handling
This fixes an issue getting resets index 1 and 3+, the spurius "> 0"
made it return the index 0 or 1, whatever index was passed.

The dm_test_reset_base() did not catch it, but the dm_test_reset_base() extension
catches it and this fixes the regression.

This also fixes a reggression on Amlogic G12A/G12B SoCs, where HDMI output was disable
even when Linux was booting.

Fixes: ea9dc35aab ("reset: Get the RESET by index without device")
Reported-by: B1oHazard <ty3uk@mail.ua>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2021-04-28 10:05:13 +02:00
Dario Binacchi
48594c38ed pinctrl: single: fix a never true comparison
As reported by Coverity Scan for Das U-Boot, the 'less-than-zero'
comparison of an unsigned value is never true.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
2021-04-28 10:05:13 +02:00
Dario Binacchi
10221d2847 pinctrl: single: check function mask to be non-zero
Otherwise it can generate a division by zero, which has an undefined
behavior.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
2021-04-28 10:05:13 +02:00
Rasmus Villemoes
17bd5cce7e allow opting out of WATCHDOG_RESET() from timer interrupt
Having WATCHDOG_RESET() called automatically from the timer interrupt
runs counter to the idea of a watchdog device - if the board runs into
an infinite loops with interrupts still enabled, the watchdog will
never fire.

When using CONFIG_(SPL_)WDT, the watchdog_reset function is a lot more
complicated than just poking a few SOC-specific registers - it
involves accessing all kinds of global data, and if the interrupt
happens at the wrong time (say, in the middle of an WATCHDOG_RESET()
call from ordinary code), that can end up corrupting said global data.

Allow the board to opt out of calling WATCHDOG_RESET() from the timer
interrupt handler by setting CONFIG_SYS_WATCHDOG_FREQ to 0 - as that
setting is currently nonsensical (it would be compile-time
divide-by-zero), it cannot affect any existing boards.

Add documentation for both the existing and extended meaning of
CONFIG_SYS_WATCHDOG_FREQ.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-04-28 10:05:13 +02:00
Rasmus Villemoes
f9fb4c462b timer: mpc83xx_timer: fix build with CONFIG_{HW_, }WATCHDOG
The code, which is likely copied from arch/powerpc/lib/interrupts.c,
lacks a fallback definition of CONFIG_SYS_WATCHDOG_FREQ and refers to
a non-existing timestamp variable - obviously priv->timestamp is
meant.

Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
2021-04-28 10:05:13 +02:00
Rasmus Villemoes
d0c94749dc watchdog: use time_after_eq() in watchdog_reset()
Some boards don't work with the rate-limiting done in the generic
watchdog_reset() provided by wdt-uclass.

For example, on powerpc, get_timer() ceases working during bootm since
interrupts are disabled before the kernel image gets decompressed, and
when the decompression takes longer than the watchdog device
allows (or enough of the budget that the kernel doesn't get far enough
to assume responsibility for petting the watchdog), the result is a
non-booting board.

As a somewhat hacky workaround (because DT is supposed to describe
hardware), allow specifying hw_margin_ms=0 in device tree to
effectively disable the ratelimiting and actually ping the watchdog
every time watchdog_reset() is called. For that to work, the "has
enough time passed" check just needs to be tweaked a little to allow
the now==next_reset case as well.

Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Reviewed-by: Stefan Roese <sr@denx.de>
2021-04-28 10:05:13 +02:00