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