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diff --git a/doc/arch/sh.rst b/doc/arch/sh.rst new file mode 100644 index 0000000000..3a3f92dd3e --- /dev/null +++ b/doc/arch/sh.rst @@ -0,0 +1,106 @@ +.. SPDX-License-Identifier: GPL-2.0+ +.. Copyright (c) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigaur.org> + +SuperH +====== + +What's this? +------------ +This file contains status information for the port of U-Boot to the +Renesas SuperH series of CPUs. + +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. + +Supported CPUs +-------------- + +Renesas SH7750/SH7750R +^^^^^^^^^^^^^^^^^^^^^^ +This CPU has the SH4 core. + +Renesas SH7722 +^^^^^^^^^^^^^^ +This CPU has the SH4AL-DSP core. + +Renesas SH7780 +^^^^^^^^^^^^^^ +This CPU has the SH4A core. + +Supported Boards +---------------- + +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 + +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 + +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 + +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 + +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 + +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/>`_ + +Future +------ +I plan to support the following CPUs and boards. + +CPUs +^^^^ +- SH7751R(SH4) + +Boards +^^^^^^ +Many boards ;-) |