(original text here: https://patchwork.kernel.org/patch/8686761/)
On some SOCs PORTS_IMPL register value is never programmed by the BIOS
and left at zero value. Which means that no sata ports are avaiable for
software. AHCI driver used to cope up with this by fabricating the
port_map if the PORTS_IMPL register is read zero, but recent patch
broke this workaround as zero value was valid for nvme disks.
This patch adds ports-implemented dt bindings as workaround for this issue
in a way that DT can dictate the port_map incase where the SOCs does not
program it already.
This patch is equal to commits:
67f8425d0ee1 ("ipq8064: dts: force AP148 SATA port mapping")
2e7a2c91019c ("ARM: dts: qcom: Move common nodes to ipq8064-v.1.0.dtsi")
in the upstream linux kernel.
Signed-off-by: Roman Glova <roman_glova@epam.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[added upstream commits, reorg' commit message]
Buffalo WXR-2533DHP is a 2.4/5 GHz band 11ac router, based on Qualcomm
IPQ8064.
The U-Boot on WXR-2533DHP employs a complicated dual firmware
protection scheme against corruptions of the kernel and rootfs
images. See the notes in buffalo.sh for details.
specifications:
- Qualcomm IPQ8064 (384 - 1,400 MHz, 2C2T)
- 512 MB of RAM (DDR3)
- 256 MB of Flash (NAND)
- 4T4R 2.4/5 GHz Wlan (QCA9980)
- 5x 10/100/1000 Mbps Ethernet
- 10x LEDs, 8x keys (6x buttons, 2x slide-switches)
- 2x USB 3.0 Type-A
- 12VDC/4A AC Adapter
- UART through-hole on PCB
- J3: Vcc, GND, TX, RX from USB port side
- 115200n8
Boot instructions for the initramfs image:
1. Prepare the TFTP server with the initramfs image renamed to
"wxr2300dhp-initramfs.uImage" and IP address "192.168.11.10".
2. Press the "AOSS" button while powering on the WXR-2533DHP.
3. Wait until the "Wireless" LED flashes before releasing the AOSS button.
The WXR-2533DHP will grab the image from TFTP server and will boot it.
Flashing instructions:
To persistently write the firmware, flash an openwrt sysupgrade image
from inside the initramfs, for example transfer
via `scp <sysupgrade> root@192.168.1.1:/tmp` and flash on the device
with `sysupgrade -n /tmp/<sysupgrade>`. Then wait ~120 seconds to
let it finish the flashing process.
Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com> [reworded message]
These nodes are common for all revisions so put it into SoC v1.0
dtsi file.
Signed-off-by: Pavel Kubelun <be.dissent@gmail.com>
[slh: rebase for kernel v4.14 as well]
Signed-off-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
- Rebased the patches for 4.14
- Dropped spi-qup and 0027, 0028, 0029
clk patches since it's already included
in upstream.
Tested on IPQ AP148 Board:
1) NOR boot and NAND boot
2) Tested USB and PCIe interfaces
3) WDOG test
4) cpu frequency scaling
5) ethernet, 2G and 5G WiFi
6) ubi sysupgrade
Signed-off-by: Ram Chandra Jangir <rjangir@codeaurora.org>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
