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U-Boot for Renesas SuperH
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Last update 01/18/2008 by Nobuhiro Iwamatsu
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0. What's this?
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This file contains status information for the port of U-Boot to the
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Renesas SuperH series of CPUs.
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1. Overview
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SuperH has an original boot loader. However, source code is dirty, and
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maintenance is not done.
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To improve sharing and the maintenance of the code, Nobuhiro Iwamatsu
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started the porting to u-boot in 2007.
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2. Supported CPUs
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2.1. Renesas SH7750/SH7750R
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This CPU has the SH4 core.
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2.2. Renesas SH7722
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This CPU has the SH4AL-DSP core.
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2.3. Renesas SH7720
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This CPU has the SH3 core.
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2.4. Renesas SH7710/SH7712
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This CPU has the SH3-DSP core and Ethernet controller.
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2.5. Renesas SH7780
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This CPU has the SH4A core.
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3. Supported Boards
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3.1. Hitachi UL MS7750SE01/MS7750RSE01
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Board specific code is in board/ms7750se
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To use this board, type "make ms7750se_config".
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Support devices are :
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- SCIF
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- SDRAM
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- NOR Flash
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- Marubun PCMCIA
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3.2. Hitachi UL MS7722SE01
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Board specific code is in board/ms7722se
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To use this board, type "make ms7722se_config".
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Support devices are :
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- SCIF
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- SDRAM
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- NOR Flash
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- Marubun PCMCIA
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- SMC91x ethernet
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3.2. Hitachi UL MS7720ERP01
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Board specific code is in board/ms7720se
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To use this board, type "make ms7720se_config".
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Support devices are :
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- SCIF
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- SDRAM
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- NOR Flash
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- Marubun PCMCIA
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3.3. Renesas R7780MP
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Board specific code is in board/r7780mp
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To use this board, type "make r7780mp_config".
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Support devices are :
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- SCIF
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- DDR-SDRAM
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- NOR Flash
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- Compact Flash
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- ASIX ethernet
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- SH7780 PCI bridge
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- RTL8110 ethernet
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** README **
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In SuperH, S-record and binary of made u-boot work on the memory.
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When u-boot is written in the flash, it is necessary to change the
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address by using 'objcopy'.
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ex) shX-linux-objcopy -Ibinary -Osrec u-boot.bin u-boot.flash.srec
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4. Compiler
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You can use the following of u-boot to compile.
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- SuperH Linux Open site
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http://www.superh-linux.org/
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- KPIT GNU tools
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http://www.kpitgnutools.com/
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5. Future
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I plan to support the following CPUs and boards.
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5.1. CPUs
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- SH7751R(SH4)
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- SH7785(SH4)
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5.2. Boards
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- Many boards ;-)
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Copyright (c) 2007,2008
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Nobuhiro Iwamatsu <iwamatsu@nigaur.org>
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