openwrt/package/boot
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
..
arm-trusted-firmware-bcm63xx trusted-firmware-a.mk: pass DTC path similar to u-boot.mk 2022-08-28 19:01:55 +01:00
arm-trusted-firmware-mediatek arm-trusted-firmware-mediatek: update to sources of 2022-08-31 2022-08-31 21:10:39 +01:00
arm-trusted-firmware-mvebu trusted-firmware-a.mk: pass DTC path similar to u-boot.mk 2022-08-28 19:01:55 +01:00
arm-trusted-firmware-rockchip atf-rockchip: update to 2.3 2020-07-28 15:52:44 +02:00
arm-trusted-firmware-sunxi trusted-firmware-a.mk: pass DTC path similar to u-boot.mk 2022-08-28 19:01:55 +01:00
arm-trusted-firmware-tools arm-trusted-firmware-tools: update to v2.7 2022-09-07 04:22:40 +01:00
at91bootstrap at91bootstrap: use sdmmc0 as booting media for sama5d27_som1_ek 2022-09-02 20:43:51 +02:00
fconfig treewide: unify OpenWrt hosted source via @OPENWRT 2021-02-05 12:00:24 -10:00
grub2 grub2: add missing license 2022-04-04 18:15:02 +02:00
imx-bootlets imx-bootlets: refresh patches 2021-02-24 16:15:02 +01:00
kexec-tools kexec-tools: add kdump scripts util 2022-06-25 10:14:18 +02:00
kobs-ng kobs-ng: update dependencies after 'imx6' -> 'imx' rename 2021-11-03 12:45:40 +01:00
mt7623n-preloader mt7623n-preloader: remove mt7622-preloader 2021-02-28 04:12:23 +00:00
tfa-layerscape layerscape: update remaining PKG_HASH / PKG_MIRROR_HASH 2022-07-22 22:03:27 +02:00
uboot-at91 uboot-at91: use sdmmc0 as booting media for sama5d27_som1_ek 2022-09-02 20:43:51 +02:00
uboot-bcm4908 uboot-bcm4908: include SoC in output files 2022-07-25 18:13:12 +02:00
uboot-envtools realtek: add support for TP-Link SG2452P v4 aka T1600G-52PS v4 2022-09-10 22:13:52 +02:00
uboot-fritz4040 uboot-fritz4040: Add support for Toshiba NAND 2022-05-14 11:08:45 +02:00
uboot-imx uboot-imx: pico-pi-imx7d: fix wrong make flags overriding 2022-07-12 09:25:43 +02:00
uboot-kirkwood uboot-kirkwood: refresh patches 2021-06-06 19:06:29 +02:00
uboot-lantiq uboot-lantiq: danube: fix hanging lzma kernel uncompression #2 2021-11-27 21:49:10 +01:00
uboot-layerscape uboot-layerscape: update PKG_HASH 2022-07-17 14:14:54 +02:00
uboot-mediatek mediatek: filogic: use WPS button instead of RST on BPi-R3 2022-09-10 19:20:26 +01:00
uboot-mvebu uboot-mvebu: update to v2022.07 2022-07-31 18:53:23 +02:00
uboot-mxs u-boot.mk: always link host libraries static 2021-10-24 18:00:49 +02:00
uboot-omap uboot-omap: Remove omap3_overo configuration 2021-11-28 22:26:27 +01:00
uboot-oxnas treewide: use AUTORELEASE on all uboot-* packages 2021-10-02 21:26:12 +02:00
uboot-rockchip uboot-rockchip: drop CONFIG_IDENT_STRING 2022-06-19 12:31:02 +02:00
uboot-sunxi uboot-sunxi: add support for FriendlyARM NanoPi R1S H5 2021-10-30 21:17:20 +02:00
uboot-tegra treewide: use AUTORELEASE on all uboot-* packages 2021-10-02 21:26:12 +02:00
uboot-zynq u-boot.mk: always link host libraries static 2021-10-24 18:00:49 +02:00