Commit Graph

71395 Commits

Author SHA1 Message Date
Michael Walle
714555374f net: dsa: remove master santiy check
Because we probe the master ourselves (and fail if there is no master),
it is not possible that we don't have a master device.

There is one catch though: device removal. We don't support that. It
wasn't supported neither before this patch. Because the master device
was only set in .pre_probe(), if a device was removed master_dev was a
dangling pointer and transmitting a frame cause a panic. I don't see a
good solution without having some sort of notify machanism when a
udevice is removed.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Michael Walle <michael@walle.cc> [DSA unit tests]
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Michael Walle
108157c468 net: dsa: remove NULL check for priv and platform data
Because the uclass has the "*_auto" properties set, the driver model
will take care of allocating the private structures for us and they
can't be NULL. Drop the checks.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Michael Walle
e5d7d11928 net: dsa: probe master device
DSA needs to have the master device probed first for MAC inheritance.
Until now, it only works by chance because the only user (LS1028A SoC)
will probe the master device first. The probe order is given by the PCI
device ordering, thus it works because the master device has a "smaller"
BDF then the switch device.

Explicitly probe the master device in dsa_port_probe().

Fixes: fc054d563b ("net: Introduce DSA class for Ethernet switches")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Michael Walle
a02dcbbb5a net: dsa: return early if there is no master
It doesn't make sense to have DSA without a master port. Error out early
if there is no master port.

Fixes: fc054d563b ("net: Introduce DSA class for Ethernet switches")
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
6ce33e2288 board: ls1012aqds: Update MAINTAINERS
Update LS1012AQDS Board MAINTAINERS entries to
current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
044732a903 board: lx2160a: Update MAINTAINERS
Update LX2160AQDS BOARD MAINTAINER entry to
current MAINTAINER.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
088fad9941 board: ls1046ardb: Update MAINTAINERS
Update LS1046ARDB BOARD MAINTAINERS entries to
current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
b0289d9951 board: ls1046aqds: Update MAINTAINERS
Update LS1046AQDS BOARD MAINTAINERS entries to
current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
f94911ed8f board: ls2080ardb: Update MAINTAINERS
Update LS2080ARDB BOARD MAINTAINERS entries to
current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
033743d7ed board: ls2080aqds: Update MAINTAINERS
Update LS2080AQDS BOARD MAINTAINERS entries to
current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
8f75c959e9 board: ls1088a: Update MAINTAINERS
Update LS1088ARDB, LS1088AQDS BOARD MAINTAINERS
entries to current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
b4d5d84484 board: ls1043ardb: Update MAINTAINERS
Update LS1043ARDB BOARD MAINTAINERS entries
to current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
9a558e3c28 board: ls1028a: Update MAINTAINERS
Update LS1028AQDS, LS10128ARDB board MAINTAINERS
entries to current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
1729147c5a board: ls1021atwr: Update MAINTAINERS
Update LS1021ATWR BOARD MAINTAINERS entries to
current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
2e4dbeffab board: ls1021aiot: Update MAINTAINERS
Update LS1021AIOT BOARD MAINTAINERS entries to
current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:42 +05:30
Priyanka Jain
caa18f046f board: ls1012ardb: Update MAINTAINERS
Update LS1012ARDB BOARD MAINTAINERS entries
to current MAINTAINERS.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:41 +05:30
Priyanka Jain
c245727d31 board: ls1012afrdm: Update MAINTAINERS
Update LS1012AFRWY BOARD MAINTAINER entry
to current MAINTAINER.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:41 +05:30
Priyanka Jain
ebc0730bc7 board: corenet_ds: MAINTAINERS: Remove redundant entries
Remove MAINTAINERS entries for
P3041DS_NAND_SECURE_BOOT_defconfig
and P5040DS_NAND_SECURE_BOOT_defconfig
as these configs support have been removed.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:41 +05:30
Rajesh Bhagat
c8c0170f19 configs: fsl: move via specific defines to Kconfig
Moves below via specific defines to Kconfig:

	CONFIG_FSL_VIA

Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:41 +05:30
Rajesh Bhagat
504debcd8c configs: fsl: move bootrom specific defines to Kconfig
Moves below bootrom specific defines to Kconfig:

    CONFIG_SYS_FSL_BOOTROM_BASE
    CONFIG_SYS_FSL_BOOTROM_SIZE

Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:41 +05:30
Stephen Carlson
b5ee48c099 arm: fsl: common: Improve NXP VID driver PMBus support
This patch adds support for more PMBus compatible devices to the NXP
drivers for its QorIQ family devices. At runtime, the voltage regulator is
queried over I2C, and the required voltage multiplier determined. This
change supports the DIRECT and LINEAR PMBus voltage reporting modes.

Previously, the driver only supported a few specific devices such as the
IR36021 and LTC3882, so this change allows the QorIQ series to be used
with a much larger variety of core voltage regulator devices.

checkpatch warning "Use if (IS_DEFINED (...))" was ignored to maintain
consistency with the existing code.

Signed-off-by: Stephen Carlson <stcarlso@linux.microsoft.com>
Signed-off-by: Wasim Khan <wasim.khan@nxp.com>
Tested-by: Wasim Khan <wasim.khan@nxp.com>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2021-03-05 10:25:41 +05:30
Tom Rini
6a026e5649 Azure/GitLab: Use buildman -T0 for binman, etc, test
There are times where buildman seems to get stuck in this job when in
CI.  Forcing single-threaded here allows us to complete and move on.

Signed-off-by: Tom Rini <trini@konsulko.com>
2021-03-04 17:51:43 -05:00
Simon Glass
b82492bbcc buildman: Support single-threaded operation
At present even if only a single thread is in use, buildman still uses
threading.

For some debugging it is helpful to do everything in the main process.
Allow -T0 to support this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-04 17:51:43 -05:00
Pali Rohár
d6bf36c775 Nokia RX-51: Enable CONFIG_CMD_BOOTD
CONFIG_CMD_BOOTD provides 'boot' command which is required in more scripts.

Signed-off-by: Pali Rohár <pali@kernel.org>
2021-03-04 14:40:56 -05:00
Pali Rohár
612a201d38 fs/squashfs: Fix compilation error
Commit 401d1c4f5d ("common: Drop
asm/global_data.h from common header") broke compilation of squashfs
filesystem when CONFIG_CMD_SQUASHFS=y is enabled.

Compilation is failing on error:

    aarch64-linux-gnu-ld.bfd: u-boot/fs/squashfs/sqfs_inode.c:121: undefined reference to `le32_to_cpu'

Fixes: 401d1c4f5d ("common: Drop asm/global_data.h from common header")
Suggested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2021-03-04 14:40:52 -05:00
Tom Rini
2b82b1d26a dm: Fix an obscure bug with empty of-platdata
Fixes for ns16550 base address and frequency-reading
 Other minor fixes
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Merge tag 'dm-pull-3mar21' of https://gitlab.denx.de/u-boot/custodians/u-boot-dm

dm: Fix an obscure bug with empty of-platdata
Fixes for ns16550 base address and frequency-reading
Other minor fixes
2021-03-03 22:53:53 -05:00
Bin Meng
384b62c073 serial: ns16550: Handle zero <clock-frequency> value
A working device tree node of ns16550 should never be populated
with value zero for the <clock-frequency> property. Unfortunately
this is the case for the QEMU ppce500 target.

Let's try to assign plat->clock to CONFIG_SYS_NS16550_CLK as the
last resort to handle such case.

This commit should be reverted when:

- The following QEMU patch [1] is merged, and
- U-Boot CI has upgraded its QEMU version that contains the fix

[1] http://patchwork.ozlabs.org/project/qemu-devel/patch/1612362288-22216-2-git-send-email-bmeng.cn@gmail.com/

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-03 19:17:25 -07:00
Bin Meng
09bd08401a serial: ns16550: Correct the base address type
Currently ns16550_serial_assign_base() treats the argument 'base'
with type `ulong`. This is incorrect because the base address was
obtained from device tree with type `fdt_addr_t` that can represent
a physical address larger than 32-bit in a 32-bit system.

Fixes: 9e6ce62190 ("serial: ns16550: Fix ordering of getting base address")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-03 19:17:25 -07:00
Bin Meng
ced4c31e93 dts: Fix OF_LIVE dependency
lib/of_live.c references the following 2 ofnode APIs:
of_alias_scan() and of_get_property().

These APIs get built only when DM is on. Fix the dependency then.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-03 19:17:25 -07:00
Bin Meng
56e7257ca8 lib: Fix BINMAN_FDT dependency
lib/binman.c references the following 3 ofnode APIs:
ofnode_first_subnode(), ofnode_path() and ofnode_read_bool().

These APIs get built only when DM is on. Fix the dependency then.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-03 19:17:25 -07:00
Heinrich Schuchardt
297b8b3ebf sandbox: host bind must close file descriptor
Each invocation of the 'host bind' command with a file name argument opens
a file descriptor. The next invocation of the 'host bind' command destroys
the block device but the file descriptor remains open. The same holds true
for the 'unbind blk' command.

Close the file descriptor when unbinding the host block device.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-03 19:17:25 -07:00
Bernhard Kirchen
67637d4b5a fix patman --limit-cc option
patman's --limit-cc option parses its argument to an integer and uses
that to trim the list of CC recipients to a particular maximum. but that
only works if the cc variable is a list, which it is not.

Signed-off-by: Bernhard Kirchen <bernhard.kirchen@mbconnectline.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2021-03-03 19:17:25 -07:00
Simon Glass
939b04e9cf bootstage: Fix dependency for BOOTSTAGE_RECORD_COUNT
At present these three Kconfigs exist even when bootstage is not enabled.
This is not necessary since bootstage.c is only built if BOOTSTAGE is
enabled.

Make them conditional. Also fix up the overflow message to mention TPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-03 19:17:25 -07:00
Simon Glass
15421b71bc dm: core: Add DM_DEVICE_REMOVE condition to all exit paths
At present device_bind() does some unnecessary work if a device fails to
bind in SPL. Add the missing conditions.

Also fix a style nit in the same function while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-03 19:17:25 -07:00
Simon Glass
24fd7e383d dm: core: Fix allocation of empty of-platdata
With of-platdata we always have a dtv struct that holds the platform data
provided by the driver_info record. However, this struct can be empty if
there are no actual devicetree properties provided.

The upshot of empty platform data is that it will end up as a zero-size
member in the BSS section, which is fine. But if the driver specifies
plat_auto then it expects the correct amount of space to be allocated.

At present this does not happen, since device_bind() assumes that the
platform-data size will always be >0. As a result we end up not
allocating the space and just use the BSS region, overwriting whatever
other contents are present.

Fix this by removing the condition that platform data be non-empty, always
allocating space if requested.

This fixes a strange bug that has been lurking since of-platdata was
implemented. It has likely never been noticed since devices normally have
at least some devicetree properties, BSS is seldom used on SPL, the dtv
structs are normally at the end of bss and the overwriting only happens
if a driver changes its platform data.

It was discovered using sandbox_spl, which exercises more features than
a normal board might, and the critical global_data variable 'gd' happened
to be at the end of BSS.

Fixes: 9fa2819009 ("dm: core: Expand platdata for of-platdata devices")
Signed-off-by: Simon Glass <sjg@chromium.org>
2021-03-03 19:17:25 -07:00
Tom Rini
52ba373b78 i.MX for 2021.04
----------------
 
 - new boards:
 	- i.MX8MN Beacon EmbeddedWorks (2GB)
 	- Gateworks Venice imx8mm
 - convert to DM:
 	- imx53-qsb, mx53loco, mx51evk, mx23-evk
 - Fixes :
 	- Network : FEC ethernet quirks
 	- DH dh-imx6
 
 CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/6597
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Merge tag 'u-boot-imx-20210303' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx

i.MX for 2021.04
----------------

- new boards:
	- i.MX8MN Beacon EmbeddedWorks (2GB)
	- Gateworks Venice imx8mm
- convert to DM:
	- imx53-qsb, mx53loco, mx51evk, mx23-evk
- Fixes :
	- Network : FEC ethernet quirks
	- DH dh-imx6

CI: https://source.denx.de/u-boot/custodians/u-boot-imx/-/pipelines/6597
2021-03-03 10:10:34 -05:00
Tim Harvey
03bf8436a3 board: gateworks: imx8mm: Add Gateworks Venice board support
Add initial support for Gateworks Venice product family based on the
i.MX 8M Mini SoC

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
2021-03-03 14:15:02 +01:00
Tim Harvey
5db93abe33 arm: dts: imx8mm: add Gateworks i.MX8 Mini Dev kits
Add Gateworks i.MX 8M Mini Development kits from Linux-5.12-rc1

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
2021-03-03 14:15:02 +01:00
Tom Rini
23ab54e093 Merge https://source.denx.de/u-boot/custodians/u-boot-usb
- Kconfig dependency fix for USB_KEYBOARD
- musb gadget fixes / enhancements
2021-03-03 07:54:55 -05:00
Heinrich Schuchardt
795d605cab usb: USB keyboard requires DM_KEYBOARD
If CONFIG_DM_USB=y, the USB keyboard only works if CONFIG_DM_KEYBOARD=y.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-03-03 04:12:46 +01:00
Pali Rohár
57ac28720d Nokia RX-51: Enable usbtty serial console by default
Now when usbtty serial console is fixed in U-Boot enable CONFIG_USB_TTY for
Nokia RX-51 board by default.

Fix also USB product id as U-Boot ignores CONFIG_USBD_PRODUCTID macro and
include U-Boot string into USB product name to indicate usage of U-Boot.

CONFIG_CONSOLE_MUX is already used and U-Boot console is available for
all in/out devices. Therefore there is no need to have separate commands
'run sercon', 'run usbcon' and 'run vgacon', so remove them.

As space for U-Boot is limited to 256kB, enable CONFIG_OPTIMIZE_INLINING
and disable some other unused options so CONFIG_USB_TTY can be enabled.

Nokia RX-51 does not have easily accessible UART serial console so the only
option for easy debugging is to use device's keyboard+screen or this usbtty
serial console over USB.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
2021-03-03 04:12:46 +01:00
Pali Rohár
69b78cbf5e Nokia RX-51: Move content of rx51.h to rx51.c
After removal of MUX configuration there is no need to have extra rx51.h.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
2021-03-03 04:12:46 +01:00
Pali Rohár
b99e03d90b Nokia RX-51: Remove function set_muxconf_regs()
This function is not used and was never called.

This board contains '#define CONFIG_SKIP_LOWLEVEL_INIT' because X-Loader
set everything up, including MUX configuration.

Also this MUX configuration is incorrect and does not match hardware.

So remove this dead, unused and broken code.

This change will decrease size of U-Boot binary.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
2021-03-03 04:12:46 +01:00
Pali Rohár
50ef3851b8 arm: omap3: Compile s_init() function only when it is used
Function s_init() is called only from lowlevel_init(). So compile it only
when function lowlevel_init() is compiled.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
2021-03-03 04:12:46 +01:00
Pali Rohár
628680a99f arm: omap3: Compile lowlevel_init() function only when it is used
Function lowlevel_init() is called only from cpu_init_crit() and this
function is wrapped into #if .. #endif section. So compile also
lowlevel_init() function under same #if condition.

Function cpy_clk_code() uses lowlevel_init symbol to get address where
go_to_speed code ends. As this symbol is not available anymore when
compiling with CONFIG_SKIP_LOWLEVEL_INIT, defines a new label
go_to_speed_end at the place where go_to_speed code ends.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
2021-03-03 04:12:46 +01:00
Pali Rohár
7f98575b7b usb: gadget: Use dbg_ep0() macro instead of serial_printf()
All debug messages from ep0.c except a few are printed by dbg_ep0() macro.
So for remaining few exceptions use also dbg_ep0() instead of serial_printf().

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
2021-03-03 04:12:46 +01:00
Pali Rohár
f2e81c1d38 usb: musb: Ensure that we set musb dynamic FIFO buffer for every endpoint
If we do not set FIFO buffer address and size for some endpoint which is in
use then default programmed address 0x0 would be used which is in conflict
with address of FIFO buffer for endpoint 0. Moreover address of FIFO buffer
for endpoint 0 cannot be programmed, it is fixed to 0x0. Sharing address
space between more endpoints cause data loss and unexpected errors.

This patch is fixing transmission of characters over usbtty serial console
and allows using of usbtty for debugging purposes on Nokia N900.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
2021-03-03 04:12:46 +01:00
Pali Rohár
f1e8d2072c usb: musb: Fix handling interrupts for EP0 and SET ADDRESS commmand
Interrupt for EP0 is indicated in intrtx register via first bit. This bit
is set for both RX and TX despite register has only TX in its name. First
bit in intrrx register is reserved, not used and never set.

So remove calling musb_peri_ep0() function at every iteration of udc_irq()
and musb_peri_rx() and call it only from musb_peri_tx() when correct
interrupt bit in initrtx it set.

Address from SET ADDRESS command must be set to faddr register only after
acknowledging SERV_RXPKTRDY followed by received EP0 interrupt. So prior
calling musb_peri_ep0_set_address() check for EP0 interrupt instead of
(incorrect) MUSB_INTR_SOF interrupt.

This patch fixes issue that host (computer) cannot register U-Boot USB
device and is failing with errors:

    usb 1-1: new full-speed USB device number 86 using xhci_hcd
    usb 1-1: Device not responding to setup address.
    usb 1-1: Device not responding to setup address.
    usb 1-1: device not accepting address 86, error -71

U-Boot was writing address to faddr register too early and did not wait for
correct interrupt after which should update address.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
2021-03-03 04:12:46 +01:00
Pali Rohár
ff77bb301e usb: musb: Fix receiving of bigger buffers
If musb_peri_rx_ep() was called to process received HW buffer but U-Boot
cannot read it yet (e.g. because U-Boot SW buffer is full) then interrupt
was marked as processed also when HW buffer stayed unprocessed.

U-Boot tried to process this buffer again when it received interrupt again,
but it can receive it only when sender (host) sends a new data. As sender
(host) is not going to send a new data until U-Boot process current data
this issue caused a deadlock in case sender (host) is emitting data faster
than U-Boot can process it.

Reading musb intrrx register automatically clears this register and marks
interrupt as processed. So to prevent marking interrupt in U-Boot as
processed, adds a new variable pending_intrrx which would contain
unprocessed bits of intrrx register.

For a second step, every time when musb_peri_rx_ep() is called and there
are waiting data to be processed (signaled by MUSB_RXCSR_RXPKTRDY) either
acknowledge sender (via musb_peri_rx_ack()) that whole HW buffer was
processed or set corresponding bit in pending_intrrx that HW buffer was not
fully processed yet and next iteration is required after U-Boot allocates
space for reading HW buffer.

This patch fixes receiving large usb buffers, e.g. file transfer via Kermit
protocol implemented by 'loadb' U-Boot command over usbtty serial console.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
2021-03-03 04:12:46 +01:00
Pali Rohár
ea7125c4c6 usb: musb: Fix transmission of bigger buffers
If udc_endpoint_write() was called with bigger payload which does not fit
into one USB packet it is needed to transmit payload in more USB packets.
First packet is transmitted by udc_endpoint_write() call itself and other
packets are put into waiting queue.

Implement function musb_peri_tx() which checks if endpoints are ready for
transmit and continue transmission of waiting queue.

This patch fixes sending big output from printenv command over usbtty
serial console.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Pavel Machek <pavel@ucw.cz>>
2021-03-03 04:12:46 +01:00