Hi,
On 18/06/21 6:59 pm, Pali Rohár wrote:
This change contains update for doc/README.nokia_rx51 documentation file with information how to load U-Boot image to device RAM without need to flash it and also how to flash it into OneNAND via 0xFFFF flasher.
Signed-off-by: Pali Rohár pali@kernel.org
Can you please convert this file to rST ?
Thanks and regards, Lokesh
doc/README.nokia_rx51 | 45 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+)
diff --git a/doc/README.nokia_rx51 b/doc/README.nokia_rx51 index 1be077514f03..e739b02088ea 100644 --- a/doc/README.nokia_rx51 +++ b/doc/README.nokia_rx51 @@ -22,6 +22,51 @@ following repository:
https://github.com/pali/u-boot-maemo
+To generate combined.bin image from u-boot.bin and kernel.bin (either uImage +or zImage) use:
- sh u-boot-gen-combined u-boot.bin kernel.bin combined.bin
+Original Maemo Fremantle PR1.3 zImage kernel binary is available at:
+To unpack it (from DEB/AR, TAR and FIASCO) call commands:
- ar x kernel_2.6.28-20103103+0m5_armel.deb data.tar.gz
- tar -O -xf data.tar.gz ./boot/zImage-2.6.28-20103103+0m5.fiasco > kernel_2.6.28-20103103+0m5.fiasco
- 0xFFFF -M kernel_2.6.28-20103103+0m5.fiasco -u
+Flashed image must start with 2 kB "NOLO!img" header which contains size of +the image. Header consist of bytes "NOLO!img\x02\x00\x00\x00\x00\x00\x00\x00" +followed by 4 byte little endian size of the image and rest of the 2 kB header +are just zero bytes.
+Nokia proprietary flasher and also open source 0xFFFF flasher automatically +prepend required "NOLO!img" header and both applications expect that image +does not contain "NOLO!img" header. Adding "NOLO!img" header is required +only in case using "nandwrite" tool for flashing.
+Open source 0xFFFF flasher is available in following repository:
+It is possible to load u-boot.bin via USB to N900 RAM and boot it without +need to flashing it. Via 0xFFFF running at host PC it is done:
- 0xFFFF -m u-boot.bin -l -b
+0xFFFF support also flashing kernel image either via USB or directly on +N900 device. Flashing u-boot/kernel/combined image is done as:
- 0xFFFF -m combined.bin -f
+Via 0xFFFF is possible to generate also standard flashable image in Nokia +FIASCO format which contains metadata information like device identification +(RX-51) and version string (v2021.04):
- 0xFFFF -m RX-51:v2021.04:kernel:u-boot.bin -g u-boot.fiasco
There is support for hardware watchdog. Hardware watchdog is started by NOLO so u-boot must kick watchdog to prevent reboot device (but not very often, max every 2 seconds). There is also support for framebuffer display