1 2U-Boot for Renesas SuperH 3 Last update 01/18/2008 by Nobuhiro Iwamatsu 4 5================================================================================ 60. What's this? 7 This file contains status information for the port of U-Boot to the 8 Renesas SuperH series of CPUs. 9 10================================================================================ 111. Overview 12 SuperH has an original boot loader. However, source code is dirty, and 13 maintenance is not done. 14 To improve sharing and the maintenance of the code, Nobuhiro Iwamatsu 15 started the porting to u-boot in 2007. 16 17================================================================================ 182. Supported CPUs 19 20 2.1. Renesas SH7750/SH7750R 21 This CPU has the SH4 core. 22 23 2.2. Renesas SH7722 24 This CPU has the SH4AL-DSP core. 25 26 2.3. Renesas SH7720 27 This CPU has the SH3 core. 28 29 2.4. Renesas SH7710/SH7712 30 This CPU has the SH3-DSP core and Ethernet controller. 31 32 2.5. Renesas SH7780 33 This CPU has the SH4A core. 34 35================================================================================ 363. Supported Boards 37 38 3.1. Hitachi UL MS7750SE01/MS7750RSE01 39 Board specific code is in board/ms7750se 40 To use this board, type "make ms7750se_config". 41 Support devices are : 42 - SCIF 43 - SDRAM 44 - NOR Flash 45 - Marubun PCMCIA 46 47 3.2. Hitachi UL MS7722SE01 48 Board specific code is in board/ms7722se 49 To use this board, type "make ms7722se_config". 50 Support devices are : 51 - SCIF 52 - SDRAM 53 - NOR Flash 54 - Marubun PCMCIA 55 - SMC91x ethernet 56 57 3.2. Hitachi UL MS7720ERP01 58 Board specific code is in board/ms7720se 59 To use this board, type "make ms7720se_config". 60 Support devices are : 61 - SCIF 62 - SDRAM 63 - NOR Flash 64 - Marubun PCMCIA 65 66 3.3. Renesas R7780MP 67 Board specific code is in board/r7780mp 68 To use this board, type "make r7780mp_config". 69 Support devices are : 70 - SCIF 71 - DDR-SDRAM 72 - NOR Flash 73 - Compact Flash 74 - ASIX ethernet 75 - SH7780 PCI bridge 76 - RTL8110 ethernet 77 78 ** README ** 79 In SuperH, S-record and binary of made u-boot work on the memory. 80 When u-boot is written in the flash, it is necessary to change the 81 address by using 'objcopy'. 82 ex) shX-linux-objcopy -Ibinary -Osrec u-boot.bin u-boot.flash.srec 83 84================================================================================ 854. Compiler 86 You can use the following of u-boot to compile. 87 - SuperH Linux Open site 88 http://www.superh-linux.org/ 89 - KPIT GNU tools 90 http://www.kpitgnutools.com/ 91 92================================================================================ 935. Future 94 I plan to support the following CPUs and boards. 95 5.1. CPUs 96 - SH7751R(SH4) 97 - SH7785(SH4) 98 99 5.2. Boards 100 - Many boards ;-) 101 102================================================================================ 103Copyright (c) 2007,2008 104 Nobuhiro Iwamatsu <iwamatsu@nigaur.org> 105