Commit Graph

356 Commits

Author SHA1 Message Date
INAGAKI Hiroshi
629f2de1a7 realtek: cleanup rtl83{8x,9x}_enable_learning/flood
In *_enable_learning() only address learning should be configured, so
remove enabling forwarding. Forwarding is configured by the respective
*_enable_flood() functions.

Clean up both functions for RTL838x and RTL839x, and fix the comment on
the number of entries.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[squash RTL838x, RTL839x changes]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-10-08 11:05:03 +02:00
INAGAKI Hiroshi
b11b56e8a8 realtek: swap *_phylink_mac_link_down() contents
Fix the (accidentally?) swapped contents of
rtl83xx_phylink_mac_link_down() and rtl93xx_phylink_mac_link_down().

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[amend commit message]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-10-08 11:05:02 +02:00
INAGAKI Hiroshi
ff307f52f5 realtek: fix place of fdb/mdb info messages
Those messages should be printed when entry was found (idx >= 0). Move
them to the right place to not print invalid entry indices.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[amden commit message]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-10-08 11:05:02 +02:00
INAGAKI Hiroshi
3834e72fa3 realtek: add missing of.h include in phy driver
of.h is required for of_property_read_u32().

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[amend commit message]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-10-08 11:05:02 +02:00
INAGAKI Hiroshi
04cca345df realtek: fix use of uninitialized sds_mode
The initial state of sds_mode in rtl9300_force_sds_mode() is null and it
will be configured in switch-case. So print message after it.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[amend commit message]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-10-08 11:05:02 +02:00
INAGAKI Hiroshi
27a580df4a realtek: use MIPS fw_init_cmdline()
Use the generic function of MIPS in Linux Kernel instead of open coding
our own initialisation.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[amend commit message]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-10-08 11:05:02 +02:00
INAGAKI Hiroshi
5b37e3245d realtek: update SMP-related calls in prom_init()
The availabibity of probing CPC depends on CONFIG_MIPS_CPC symbol and it
will be checked in arch/mips/include/asm/mips-cpc.h. RTL9310 selects
this symbol, so the family check is redudant.

Furthermore, mips_cm_probe() is already called from setup_arch() in
mips/kernel/setup.c before prom_init(), and as such is not required.

Also move mips_cpc_probe() to run just before registering SMP ops.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
[squash SMP change commits, reword commit message]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
---
This patch only really has an impact on the rtl931x subtarget, which has
no devices. Noboby is currently set up to test these patches either, but
the end result is closer to MIPS_GENERIC, so I do not expect it to cause
issues.
2022-10-08 11:05:02 +02:00
INAGAKI Hiroshi
9b53a29a58 realtek: separate lock of RTL8231 from phy driver
RTL8231 and ethernet phys are not on the same bus, so separate the lock
to each own to cut off the unnecessary dependency.

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
2022-10-08 11:05:02 +02:00
John Audia
eed0a31b90 kernel: bump 5.10 to 5.10.146
All patches automatically rebased.

Signed-off-by: John Audia <therealgraysky@proton.me>
2022-10-02 20:21:55 +02:00
Sander Vanheule
918e774658 realtek: use correct CAUSEF_DC macro in prom.c
The workaround for an already-enabled R4K timer used a non-existent
macro CAUSE_DC. Fix compiling by using the actual macro CAUSEF_DC.

Fixes: b7aab19585 ("realtek: SMP handling of R4K timer interrupts")
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-10-01 09:56:54 +02:00
Markus Stockhausen
b7aab19585 realtek: SMP handling of R4K timer interrupts
Until now there has been no good explanation why we mess with the R4K
timer on SMP. After extensive testing and looking at the SDK code it
becomes clear what it is all about.

When we disable the CEVT_R4K module (we will do with the new timer
driver) the R4K timer hardware still fires interrupts on the secondary
CPU. To get around this we have two options:

- Disable IRQ 7
- Stop the counter completely

This patch selects option two because this is the root of evil.. To be
on the safe side we will do it only in case the CEVT_R4K module is
disabled.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-10-01 09:22:32 +02:00
Markus Stockhausen
2b12da1313 realtek: fix SMP startup
The scope of the SMP startup structure is wrong. It is created on the
stack and not as a global variable. This can lead to startup failures.

Fixes: 3f41360eb7 ("realtek: use upstream recommendation for CPU start")
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de
2022-10-01 09:22:32 +02:00
Olliver Schinagl
f1f97db627
realtek: Convert incorrect v5.10 patches
OpenWRT's developer guide prefers having actual patches so they an be
sent upstream more easily.

However, in this case, Adding proper fields also allows for `git am` to
properly function. Some of these patches are quite old, and lack much
traceable history.

This commit tries to rectify that, by digging in the history to find
where and how it was first added.

It is by no means perfect and also shows some patches that should have
been long gone.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2022-10-01 02:47:57 +02:00
Felix Fietkau
36f2ab4bfd kernel: move kernel image cmdline hack to the octeon target
It is the only remaining user of this hack

Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-09-30 13:13:51 +02:00
Christian Marangi
165b66d910
realtek: rtl931x: fix missing CONFIG_COMMON_CLK_REALTEK config flag
When the realtek clock driver was introduced, CONFIG_COMMON_CLK_REALTEK
was not correctly disabled for other subtarget. Add the missing config
flag to fix compilation error on buildbot.

Fixes: 4850bd887c ("realtek: add RTL83XX clock driver")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2022-09-28 01:15:47 +02:00
Jan Hoffmann
d924a75be3 realtek: fix RTL839x egress tag for ports >= 32
Don't overwrite AS_DPM and L2LEARNING flags when dest_port is >= 32.

Fixes: 1773264a0c ("realtek: correct egress frame port verification")
Signed-off-by: Jan Hoffmann <jan@3e8.eu>
2022-09-25 20:53:24 +02:00
John Audia
eff4f8b2f0 kernel: bump 5.10 to 5.10.144
All patches automatically rebased.

Signed-off-by: John Audia <therealgraysky@proton.me>
2022-09-22 12:46:55 +02:00
Markus Stockhausen
3f41360eb7 realtek: use upstream recommendation for secondary CPU start
Currently we fix interrupts/timers for the secondary CPU by patching
vsmp_init_secondary(). Get a little bit more generic and use the
upstream recommended way instead. Additionally avoid a check around
register_cps_smp_ops() because it does that itself.

See https://lkml.org/lkml/2022/9/12/522

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-09-18 20:38:56 +02:00
Markus Stockhausen
bcb5d6b21b realtek: avoid wrong interrupt routing
The interrupt controller depends on two control registers. GIMR enables
or disables interrupts and IRRx routes these to MIPS CPU interrupts 2-7.
Wiki currently states "A value of '0' (in IRRx) disconnects this input from
the output line, independent of the line's setting in GIMR."

Contrary to normal intuition this statement DOES NOT mean, that interrupts
can be disabled by IRRx alone. The sad truth was discovered by enabling
SMP for an Zyxel XGS1010 on the 930x target. It shows that driver and
interrupts behave as follows:

- Timer 0 interrupt 7 has active routing to CPU0 and no routing to CPU1
- Timer 1 interrupt 8 has no routing to CPU0 and active routing to CPU1
- Unmasking (enabling) interrupts writes 1 bits to all GIMR registers
- Masking (disabling) interrupts writes 0 bits to both GIMR registers

During operation we can encounter a situation like

- GIMR bit for a interrupt/CPU combination is set to enabed (=1)
- IRRx routing bits for a interrupt/CPU combination are set to disabed (=0)

This setting already allows the hardware to fire interrupts to the target
CPU/VPE if the other CPU/VPE is currently busy. Especially for CPU bound
timer interrupts this is lethal. If timer interrupt 7 arrives at CPU1 and
vice versa for interrupt 8 the restart trigger gets lost. The timer dies
and a msleep() operation in the kernel will halt endlessly.

Fix this by tracking the IRRx active routing setting in a new bitfield with
0="routing active" and 1="no routing". Enable interrupts in GIMR only
for a interrupt & CPU if routing is active. Thus we have

- GIMR = 0 / IRRx = 0 -> everything disabled
- GIMR = 1 / IRRx > 0 -> active and normal routing
- GIMR = 0 / IRRx > 0 -> masked (disabled) with normal routing
- GIMR = 1 / IRRx = 0 -> no longer possible

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-09-18 20:38:56 +02:00
Sander Vanheule
fe5a2f334f realtek: use Device prefix for common recipes
The Build prefix is used for image build commands, while the Device
prefix should be used for base recipes for devices. Apply the same
naming convention here.

While touching the file, also fix the mixed indentation.

Suggested-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-09-18 10:12:19 +02:00
Olliver Schinagl
d2fa68379f realtek: move Netgear recipe to subtarget Makefile
There seems to be no reason to have the Netgear switches as part of
the main Makefile. Move it to its subtarget-specific Makefile since
it is only applicable there.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
[update commit message]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-09-17 22:27:32 +02:00
Sander Vanheule
51ecfb086c realtek: move hpe_1920 recipe to common.mk
Currently supported HPE 1920 devices all have an RTL838x SoC, but there
are larger switches with RTL839x SoCs, although currently not supported.
Move the build recipe to common.mk so the larger devices can also make
use of the recipe, while moving it out of the main Makefile.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-09-17 22:20:32 +02:00
Sander Vanheule
9338c09ecb realtek: merge duplicated DGS-1210 recipes
The D-Link DGS-1210 device series currently has supported devices with
both RTL838x and RTL839x SoCs. An image build recipe has been defined in
both subtarget makefiles, but these are mostly identical, save for the
SOC variable.

Move the SOC variable from the DGS-1210 build recipes to the applicable
devices, and put the remaining duplicate code in a shared Makefile.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-09-17 22:12:35 +02:00
Markus Stockhausen
e04e821471 realtek: add support for DGS-1210-52
Hardware specification
----------------------

* RTL8393M SoC, 1 MIPS 34Kc core @ 700MHz
* 128MB DRAM
* 32MB NOR Flash
* 48 x 10/100/1000BASE-T ports
  - 6 x External PHY with 8 ports (RTL8218D)
* 4 x Gigabit RJ45/SFP Combo ports
  - External PHY with 4 SFP ports (RTL8214FC)
* Power LED
* Reset button on front panel
* UART (115200 8N1) via unpopulated standard 0.1" pin header marked J14

The gpio-restart node is not required but it does reset the switch.

TODO: The 4 combo ports attached to the RTL8214FC are not detect
properly. Linux kernel reports 49 and 50 as "External RTL8393 SERDES"
and 51 and 52 as "RTL8218B (external)". Those ports only work if
u-boot initialize it (for example, loading initramfs image using one
of those ports). A patch to PHY detection is needed for full support.

The firmware recovery using U-Boot is broken for all DGS-1210 tested
devices as pressing RESET does not trigger it (only if pressed from a
running stock image)

UART pinout
-----------

[o]ooo|J14
 | ||`------ GND
 | |`------- RX
 | `-------- TX
 `---------- Vcc (3V3)

Installation using OEM upgrade
------------------------------

1. Make sure you are running OEM firmware in image2 slot (logged as admin):
   - > config firmware image_id 2 boot_up
   - > reboot
2. Install squashfs-factory_image1.bin to image1 using (logged as admin):
   - > download firmware_fromTFTP <tftpserver> factory_image1.bin
   - > config firmware image_id 1 boot_up
   - > reboot

Installation using serial interface
-----------------------------------

1. Press Escape key during `Hit Esc key to stop autoboot` prompt
2. Press CTRL+C keys to get into real U-Boot prompt
3. Init network with `rtk network on` command
4. Load image with `tftpboot 0x8f000000 openwrt-realtek-rtl839x-d-link_dgs-1210-52-initramfs-kernel.bin` command
5. Boot the image with `bootm` command

Once booted the initramfs, install the squashfs-sysupgrade.bin as a
normal OpenWrt system.

Dual-boot with stock firmware using writable u-boot-env
-------------------------------------------------------

From stock to OpenWrt / boot image 1 (CLI as admin):
   - > config firmware image_id 1 boot_up
   - > reboot

From OpenWrt to stock / boot image 2: (shell as root)
   - # fw_setenv bootcmd 'run addargs ; bootm 0xb4e80000'
   - # fw_setenv image '/dev/mtdblock7'
   - # reboot

Debrick using serial interface
------------------------------

1. Press Escape key during `Hit Esc key to stop autoboot` prompt
2. In a Windows PC, run 'D-Link Network Assistant v2.0.2.4'. It should
   detect the switch
3. Flash the firmware.

Back to stock firmware using dual-boot
--------------------------------------

If you have serial interface, you can change u-boot env vars
interrupting the boot process. If not but you are running OpenWrt, you
can dual-boot (as mentioned eariler) and skip to step 4:

1. Press Escape key during `Hit Esc key to stop autoboot` prompt
2. Press CTRL+C keys to get into real U-Boot prompt
3. Boot the image 2:
   - set image /dev/mtdblock7; run addargs; bootm 0xb4e80000
4. Once booted, log as admin and change the boot image to 2
   - > config firmware image_id 2 boot_up
   - > reboot
5. After the boot, flash image1 with the vendor image

Back to stock firmware using DNA
--------------------------------

1. From an OpenWrt:
   - # fw_setenv bootstop on
   - # reboot
2. In a Windows PC, run 'D-Link Network Assistant v2.0.2.4'. It should
   detect the switch
3. Flash the firmware.

It has been developed and tested on device with F3 revision.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
2022-09-17 21:28:21 +02:00
Markus Stockhausen
9ed1a1138e realtek: align DT macros in RTL839X with RTL838X
Add a missing definition to the RTL839X DT.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-09-17 21:28:21 +02:00
Markus Stockhausen
307e5cfc6e realtek: D-Link make common DT include generic
The D-Link DGS device tree was reorganized to better reflect the common
DT parts. The common include is named SOC specific (838X) and it seemed
like a good choice to add another common include in the future for the
RTL839X devices. From the current point of view this option is not really
needed.

1. The common part only includes data that matches RTL839X devices too.
2. The Panasonic DT structure avoids including the basic DTSI inside the
   common DTSI.

Taking simplicity of the Panasonic include logic and in perparation to
provide DGS-1210-52 support it makes sense to harmonize this.

- rename common include to reflect its content
- move the link to the root DTSI directly to the device specific DTS

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-09-17 21:28:21 +02:00
Olliver Schinagl
c4d030f24c
realtek: rtl838x: Fix ethernet polling timeout on probe
Due to an oversight we accidentally inverted the timeout check. This
patch corrects this.

Fixes: 9cec4a0ea4 ("realtek: Use built-in functionality for timeout loop")
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
[ wrap poll_timeout line to 80 char ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2022-09-14 18:23:06 +02:00
Olliver Schinagl
9cec4a0ea4
realtek: Use built-in functionality for timeout loop
In commit 81e3017609 ("realtek: clean up rtl838x MDIO busy wait loop")
a hand-crafted loop was created, that nearly exactly replicate the
iopoll's `read_poll_timeout` functionality.

Use that instead.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
2022-09-14 12:03:57 +02:00
Alexandru Gagniuc
01e2184c49 realtek: add support for TP-Link SG2210P
Add support for the TP-Link SG2210P switch. This is an RTL8380 based
switch with eight RJ-45 ports with 802.3af PoE, and two SFP ports.

This device shares the same board with the SG2008P and SG2008. To
model this, declare all the capabilities in the sg2xxx dtsi, and
disable unpopulated on the lower end models.

Specifications:
---------------
 - SoC:       Realtek RTL8380M
 - Flash:     32 MiB SPI flash (Vendor varies)
 - RAM:	      256 MiB (Vendor varies)
 - Ethernet:  8x 10/100/1000 Mbps with PoE (all ports)
              2x SFP ports
 - Buttons:   1x "Reset" button on front panel
 - Power:     53.5V DC barrel jack
 - UART:      1x serial header, unpopulated
 - PoE:       2x TI TPS23861 I2C PoE controller

Works:
------
  - (8) RJ-45 ethernet ports
  - (2) SFP ports (with caveats)
  - Switch functions
  - System LED

Not yet enabled:
----------------
  - Power-over-Ethernet (driver works, but doesn't enable "auto" mode)
  - PoE LEDs

Enabling SFP ports:
-------------------

The SFP port control lines are hardwired, except for tx-disable. These
lines are controller by the RTL8231 in shift register mode. There is
no driver support for this yet.

However, to enable the lasers on SFP1 and SFP2 respectively:

    echo 0x0510ff00 > /sys/kernel/debug/rtl838x/led/led_p_en_ctrl
    echo      0x140 > /sys/kernel/debug/rtl838x/led/led_sw_p_ctrl.26
    echo      0x140 > /sys/kernel/debug/rtl838x/led/led_sw_p_ctrl.24

Install via serial console/tftp:
--------------------------------

The footprints R27 (0201) and R28 (0402) are not populated. To enable
serial console, 50 ohm resistors should be soldered -- any value from
0 ohm to 50 ohm will work. R27 can be replaced by a solder bridge.

The u-boot firmware drops to a TP-Link specific "BOOTUTIL" shell at
38400 baud. There is no known way to exit out of this shell, and no
way to do anything useful.

Ideally, one would trick the bootloader into flashing the sysupgrade
image first. However, if the image exceeds 6MiB in size, it will not
work. The sysupgrade image can also be flashed. To install OpenWrt:

Prepare a tftp server with:
 1. server address: 192.168.0.146
 2. the image as: "uImage.img"

Power on device, and stop boot by pressing any key.
Once the shell is active:
 1. Ground out the CLK (pin 16) of the ROM (U7)
 2. Select option "3. Start"
 3. Bootloader notes that "The kernel has been damaged!"
 4. Release CLK as sson as bootloader thinks image is corrupted.
 5. Bootloader enters automatic recovery -- details printed on console
 6. Watch as the bootloader flashes and boots OpenWrt.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
[OpenWrt capitalisation in commit message]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-09-13 09:22:26 +02:00
Alexandru Gagniuc
ab2a4c1e01 realtek: rtl8380-tl-sg2xxx: use a single "firmware" partition
The "firmware" partition was assembled from two contiguous partitions.
This complexity is unnecessary. Instead of using mtd-concat over
"sys" and "usrimg1", simply declare the "firmware" partition to cover
the flash space instead.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2022-09-13 09:22:26 +02:00
Alexandru Gagniuc
d55c087390 realtek: tl-sg2xxx: read MAC address from nvmem-cells
The TP-Link RTL83xx based switches have their MAC address programmed
in the "para" partition. While in theory, the format of this partition
is dynamic, in practice, the MAC address appears to be located at a
consistent address. Thus, use nvmem-cells to read this MAC address.

The main MAC is required for deriving the MAC address of the switch
ports. Instead of reading it via mtd_get_mac_binary(), alias the
ethernet0 node as the label-mac-device, and use get_mac_label().

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2022-09-13 09:22:26 +02:00
Alexandru Gagniuc
5f026f1272 realtek: rtl838x: label switch port dts nodes
Although PHY nodes are labeled, the port nodes were not. Labeling of
ports is useful for 'status = "disabled"' ports, which is supported
since commit 9a7f17e11f ("realtek: ignore disabled switch ports")

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2022-09-13 09:22:26 +02:00
Alexandru Gagniuc
bc9dcfb1ce realtek: split TP-Link SG2000 series devicetree
The TP-Link TL-SG2008, TL-SG2008P, and TL-SG2210P use the same board.
The main difference is that some footprints are not populated in the
lower-end models. To model this with minimal duplication, move the
devicetree to a common dtsi, leaving out just the board name.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
[remove port relabelling from commit message, already merged with commit
 18a2b29aa1 ("realtek: tl-sg2008p: fix labeling of lan ports")]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-09-13 09:22:26 +02:00
Andreas Böhler
5f8c86e654 realtek: add support for TP-Link SG2452P v4 aka T1600G-52PS v4
This is an RTL8393-based switch with 802.3af on all 48 ports.

Specifications:
---------------
 * SoC:       Realtek RTL8393M
 * Flash:     32 MiB SPI flash
 * RAM:       256 MiB
 * Ethernet:  48x 10/100/1000 Mbps with PoE+
 * Buttons:   1x "Reset" button, 1x "Speed" button
 * UART:      1x serial header, unpopulated
 * PoE:       12x TI TPS23861 I2C PoE controller, 384W PoE budget
 * SFP:       4 SFP ports

Works:
------
  - (48) RJ-45 ethernet ports
  - Switch functions
  - Buttons
  - All LEDs on front panel except port LEDs
  - Fan monitoring and basic control

Not yet enabled:
----------------
  - PoE - ICs are not in AUTO mode, so the kernel driver is not usable
  - Port LEDs
  - SFP cages

Install via web interface:
-------------------------

Not supported at this time.

Install via serial console/tftp:
--------------------------------

The U-Boot firmware drops to a TP-Link specific "BOOTUTIL" shell at
38400 baud. There is no known way to exit out of this shell, and no
way to do anything useful.

Ideally, one would trick the bootloader into flashing the sysupgrade
image first. However, if the image exceeds 6MiB in size, it will not
work. To install OpenWRT:

Prepare a tftp server with:
 1. server address: 192.168.0.146
 2. the image as: "uImage.img"

Power on device, and stop boot by pressing any key.
Once the shell is active:
 1. Ground out the CLK (pin 16) of the ROM (U6)
 2. Select option "3. Start"
 3. Bootloader notes that "The kernel has been damaged!"
 4. Release CLK as soon as bootloader thinks image is corrupted.
 5. Bootloader enters automatic recovery -- details printed on console
 6. Watch as the bootloader flashes and boots OpenWRT.

Blind install via tftp:
-----------------------

This method works when it's not feasible to install a serial header.

Prepare a tftp server with:
 1. server address: 192.168.0.146
 2. the image as: "uImage.img"
 3. Watch network traffic (tcpdump or wireshark works)
 4. Power on the device.
 5. Wait 1-2 seconds then ground out the CLK (pin 16) of the ROM (U6)
 6. When 192.168.0.30 makes tftp requests, release pin 16
 7. Wait 2-3 minutes for device to auto-flash and boot OpenWRT

Signed-off-by: Andreas Böhler <dev@aboehler.at>
2022-09-10 22:13:52 +02:00
Bjørn Mork
2ca5602864 realtek: fix RTL839x receive tag decoding
The previous fixup was incomplete, and the offsets for the
queue and crc_error cpu_tag bitfields were still wrong on
RTL839x.

Fixes: 545c6113c9 ("realtek: fix RTL838x receive tag decoding")
Suggested-by: Jan Hoffmann <jan@3e8.eu>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
2022-09-09 22:11:55 +02:00
Bjørn Mork
545c6113c9 realtek: fix RTL838x receive tag decoding
Commit dc9cc0d3e2 ("realtek: add QoS and rate control") replaced a
16 bit reserved field in the RTL83xx packet header with the initial
cpu_tag word, shifting the real cpu_tag fields by one.  Adjusting for
this new shift was partially forgotten in the new RX tag decoders.

This caused the switch to block IGMP, effectively blocking IPv4
multicast.

The bug was partially fixed by commit 9d847244d9 ("realtek: fix
RTL839X receive tag decoding")

Fix on RTL838x too, including correct NIC_RX_REASON_SPECIAL_TRAP value.

Suggested-by: Jan Hoffmann <jan@3e8.eu>
Fixes: dc9cc0d3e2 ("realtek: add QoS and rate control")
Signed-off-by: Bjørn Mork <bjorn@mork.no>
2022-09-08 22:28:15 +02:00
Sander Vanheule
f1802b0db7 realtek: replace fix for spurious GPIO interrupts
8 and 16 bit writes to the GPIO peripheral are apparently not supported,
and only worked most of the time. This resulted in garbabe writes to the
interrupt mask registers, causing spurious unhandled interrupts, which
could lead to CPU lock-ups as these kept retriggering.

Instead of clearing these spurious interrupt when they occur, the
upstream patch will just make sure all register writes have the intended
result, so these don't happen at all.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-09-04 20:55:15 +02:00
Markus Stockhausen
78c0fb6927 realtek: Fix missing clock module CONFIG setting
Since introduction of clock driver we have a new kernel config
setting. Provide an initial value for the 930x targets.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-08-31 23:25:39 +02:00
Markus Stockhausen
6ff21c436d realtek: fix PLL register inconsistencies
Some devices have wrong/empty values in the PLL registers. Work
around that by reporting the default values.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-08-31 23:25:39 +02:00
John Audia
e0753c5d5c kernel: bump 5.10 to 5.10.139
All patches automatically rebased.

Signed-off-by: John Audia <therealgraysky@proton.me>
2022-08-31 23:25:39 +02:00
Alexandru Gagniuc
18a2b29aa1 realtek: tl-sg2008p: fix labeling of lan ports
The SG2008P has its ethernet ports in the rear, and LEDs in the front.
The ports should be labeled lan8->lan1, not lan1->lan8. To resolve
this, fix the phy mapping in the "ports" node.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2022-08-29 11:54:00 +02:00
Alexandru Gagniuc
f242f642bb realtek: tl-sg2008p: use correct i2c address for TPS23861
Address 0x30 is a "broadcast" address for the TPS23861. It should not
be used by drivers, as all TPS23861 devices on the bus are supposed to
respond. Change this to the correct address, 0x28.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
2022-08-29 11:54:00 +02:00
Sander Vanheule
9a7f17e11f realtek: ignore disabled switch ports
When marking a switch port as disabled in the device tree, by using
'status = "disabled";', the switch driver fails on boot, causing a
restart:

    CPU 0 Unable to handle kernel paging request at virtual address
    00000000, epc == 802c3064, ra == 8022b4b4
        [ ... ]
    Call Trace:
    [<802c3064>] strlen+0x0/0x2c
    [<8022b4b4>] start_creating.part.0+0x78/0x194
    [<8022bd3c>] debugfs_create_dir+0x44/0x1c0
    [<80396dfc>] rtl838x_dbgfs_port_init+0x54/0x258
    [<80397508>] rtl838x_dbgfs_init+0xe0/0x56c

This is caused by the DSA subsystem (mostly) ignoring the port, while
rtl83xx_mdio_probe() still extracts some details on this disabled port
from the device tree, resulting in the usage of a NULL pointer where a
port name is expected.

By not probing ignoring disabled ports, no attempt is made to create a
debugfs directory later. The device then boots as expected without the
disabled port.

Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-08-29 08:32:42 +02:00
Markus Stockhausen
48f3746fe5 realtek: switch RTL838X/RTL839X DT to new clock driver
Use new DT clockdriver syntax for RTL838X/RTL839X targets. To make it work
we need to change some nodes:
- define the external oscillator speed (25MHz)
- define SRAM
- add clock controller
- Add second CPU for RTL839X
- map all devices to new clocks
- Remove dummy LXB clock
- add CPU OPP table

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-08-28 11:48:30 +02:00
Markus Stockhausen
7c18aab6e0 realtek: activate clock driver for RTL838X/RTL839X targets
Make use the new clock driver for RTL838X and RTL839x target devices. Of course
we will enable their primary consumer (cpufreq-dt) too. To be careful just set
the default governor to userspace. As we rely on SRAM activate that module too.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-08-28 11:48:30 +02:00
Markus Stockhausen
5df36d4849 realtek: enable basic config for cpufreq framework
A new clock driver makes more sense if it can be used from consumers
like cpufreq.  Before we enable the driver we must tell the config that
the RTL838X and RTL839X targets allow CPU frequency changing.

Even though these targets currently rely on the CPU's internal R4K
timer, MIPS_EXTERNAL_TIMER is selected to allow for CPU frequency change
testing. The Realtek timers, which are clocked by the Lexra bus, still
need to be supported and used in order to provide correct wall times
when reclocking the CPU.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
[add paragraph about MIPS_EXTERNAL_TIMER to commit message]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-08-28 11:45:03 +02:00
Markus Stockhausen
800d5fb3c6 realtek: add patch to enable new clock driver in kernel
Allow building the clock driver with kernel config options.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-08-28 11:31:21 +02:00
Markus Stockhausen
4850bd887c realtek: add RTL83XX clock driver
Add a new self-contained combined clock & platform driver that allows to
access the PLL hardware clocks of RTL83XX devices. Currently it provides
info about CPU, MEM and LXB clocks on RTL838X and RTL839X devices and
additionally allows to change the CPU clocks. Changing the clocks
multiple times on a DGS-1210-20 and a DGS-1210-52 already works well and
is multithreading safe on the RTL839X. Even a cpufreq initiated change
of the CPU clock works fine. Loading the driver will add some meaningful
logging.

[0.000000] rtl83xx-clk: initialized, CPU 500 MHz, MEM 300 MHz (8 Bit DDR3), LXB 200 MHz
[0.279456] rtl83xx-clk soc:clock-controller: rate setting enabled, CPU 325-600 MHz,
           MEM 300-300 MHz, LXB 200-200 MHz, OVERCLOCK AT OWN RISK

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
[remove trailing whitespaces, C-style SPDX comments for ASM and headers]
Signed-off-by: Sander Vanheule <sander@svanheule.net>
2022-08-28 11:30:58 +02:00
Markus Stockhausen
1efaad03bb realtek: add PLL DT binding includes
Add some constants for sharing between DT and drivers.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-08-28 11:03:34 +02:00
Markus Stockhausen
396e190f0b realtek: more generic platform initialization
Platform startup still "guesses" the CPU clock speed by DT fixed values.
If possible take clock rates from a to be developed driver and align to
MIPS generic platfom initialization code. Pack old behaviour into a
fallback function. We might get rid of that some day.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
2022-08-20 11:49:30 +02:00