| Bin Meng | f25c369 | 2019-07-18 00:34:32 -0700 | [diff] [blame] | 1 | .. SPDX-License-Identifier: GPL-2.0+ |
| 2 | .. Copyright (c) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigaur.org> |
| 3 | |
| 4 | SuperH |
| 5 | ====== |
| 6 | |
| 7 | What's this? |
| 8 | ------------ |
| 9 | This file contains status information for the port of U-Boot to the |
| 10 | Renesas SuperH series of CPUs. |
| 11 | |
| 12 | Overview |
| 13 | -------- |
| 14 | SuperH has an original boot loader. However, source code is dirty, and |
| 15 | maintenance is not done. To improve sharing and the maintenance of the code, |
| 16 | Nobuhiro Iwamatsu started the porting to U-Boot in 2007. |
| 17 | |
| 18 | Supported CPUs |
| 19 | -------------- |
| 20 | |
| 21 | Renesas SH7750/SH7750R |
| 22 | ^^^^^^^^^^^^^^^^^^^^^^ |
| 23 | This CPU has the SH4 core. |
| 24 | |
| 25 | Renesas SH7722 |
| 26 | ^^^^^^^^^^^^^^ |
| 27 | This CPU has the SH4AL-DSP core. |
| 28 | |
| 29 | Renesas SH7780 |
| 30 | ^^^^^^^^^^^^^^ |
| 31 | This CPU has the SH4A core. |
| 32 | |
| 33 | Supported Boards |
| 34 | ---------------- |
| 35 | |
| 36 | Hitachi UL MS7750SE01/MS7750RSE01 |
| 37 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |
| 38 | Board specific code is in board/ms7750se |
| 39 | To use this board, type "make ms7750se_config". |
| 40 | Support devices are: |
| 41 | |
| 42 | - SCIF |
| 43 | - SDRAM |
| 44 | - NOR Flash |
| 45 | - Marubun PCMCIA |
| 46 | |
| 47 | Hitachi UL MS7722SE01 |
| 48 | ^^^^^^^^^^^^^^^^^^^^^ |
| 49 | Board specific code is in board/ms7722se |
| 50 | To use this board, type "make ms7722se_config". |
| 51 | Support devices are: |
| 52 | |
| 53 | - SCIF |
| 54 | - SDRAM |
| 55 | - NOR Flash |
| 56 | - Marubun PCMCIA |
| 57 | - SMC91x ethernet |
| 58 | |
| 59 | Hitachi UL MS7720ERP01 |
| 60 | ^^^^^^^^^^^^^^^^^^^^^^ |
| 61 | Board specific code is in board/ms7720se |
| 62 | To use this board, type "make ms7720se_config". |
| 63 | Support devices are: |
| 64 | |
| 65 | - SCIF |
| 66 | - SDRAM |
| 67 | - NOR Flash |
| 68 | - Marubun PCMCIA |
| 69 | |
| 70 | Renesas R7780MP |
| 71 | ^^^^^^^^^^^^^^^ |
| 72 | Board specific code is in board/r7780mp |
| 73 | To use this board, type "make r7780mp_config". |
| 74 | Support devices are: |
| 75 | |
| 76 | - SCIF |
| 77 | - DDR-SDRAM |
| 78 | - NOR Flash |
| 79 | - Compact Flash |
| 80 | - ASIX ethernet |
| 81 | - SH7780 PCI bridge |
| 82 | - RTL8110 ethernet |
| 83 | |
| 84 | In SuperH, S-record and binary of made u-boot work on the memory. |
| 85 | When u-boot is written in the flash, it is necessary to change the |
| 86 | address by using 'objcopy':: |
| 87 | |
| 88 | ex) shX-linux-objcopy -Ibinary -Osrec u-boot.bin u-boot.flash.srec |
| 89 | |
| 90 | Compiler |
| 91 | -------- |
| 92 | You can use the following of u-boot to compile. |
| 93 | - `SuperH Linux Open site <http://www.superh-linux.org/>`_ |
| 94 | - `KPIT GNU tools <http://www.kpitgnutools.com/>`_ |
| 95 | |
| 96 | Future |
| 97 | ------ |
| 98 | I plan to support the following CPUs and boards. |
| 99 | |
| 100 | CPUs |
| 101 | ^^^^ |
| 102 | - SH7751R(SH4) |
| 103 | |
| 104 | Boards |
| 105 | ^^^^^^ |
| 106 | Many boards ;-) |