63 lines
1.4 KiB
ReStructuredText
63 lines
1.4 KiB
ReStructuredText
Ritmix RZX-50
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=============
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Ritmix RZX-50 is a portable game console for the Russian market.
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The portable game console has
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* Ingenic JZ4755 SoC;
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* 64 MiB SDRAM;
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* 4 GiB microSDHC card / 4 GiB NAND type Flash Memory (internal boot device);
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* RS232 serial interface (LV-TTL levels on the board!);
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* LCD display (480x272);
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* Video out interface;
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* 1xUSB interface;
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* buttons.
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The game console uses U-Boot 1.1.6 as bootloader.
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Running barebox
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---------------
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1. Connect to the game console's UART
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(see. http://a320.emulate.su/2012/01/19/uart-na-ritmix-rzx-50/);
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2. Unblock U-Boot console
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(see. http://a320.emulate.su/2012/01/25/rzx-50-dostup-k-konsoli-u-boot/);
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Please note that U-Boot's Zmodem support does not work;
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3. Boot Ritmix linux and login;
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4. Build barebox and upload ``barebox.bin`` via Zmodem to the board:
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.. code-block:: none
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# cd /tmp
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# rz
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..
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5. Write barebox to onboard flash:
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.. code-block:: none
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# dd if=barebox.bin of=/dev/mmcblk0 seek=1048576 bs=1 count=262144
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..
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6. Reboot RZX-50, next in U-Boot console start barebox:
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.. code-block:: none
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CETUS # msc read 0xa0800000 0x100000 0x40000; g a0800000
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..
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Links
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-----
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* http://www.ritmixrussia.ru/products/252/entertainment/game/rzx-50
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* ftp://ftp.ingenic.cn/2soc/4755/JZ4755_ds.pdf
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* ftp://ftp.ingenic.cn/3sw/01linux/01loader/u-boot/u-boot-1.1.6-jz-20110719-r1728-add-jz4770.patch.bz2
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