H8/300 linux boot support

[Yoshinori Sato <qzb04471 at nifty dot ne dot jp>]

diff -Nrc ecos/packages/hal/h8300/arch/current/src/redboot_linux_exec.c ecos.ysato/packages/hal/h8300/arch/current/src/redboot_linux_exec.c
*** ecos/packages/hal/h8300/arch/current/src/redboot_linux_exec.c	Thu Jan  1 09:00:00 1970
--- ecos.ysato/packages/hal/h8300/arch/current/src/redboot_linux_exec.c	Sun Jun  2 00:26:33 2002
***************
*** 0 ****
--- 1,107 ----
+ //==========================================================================
+ //
+ //      redboot_linux_exec.c
+ //
+ //      RedBoot exec command for Linux booting
+ //
+ //==========================================================================
+ //####ECOSGPLCOPYRIGHTBEGIN####
+ // -------------------------------------------
+ // This file is part of eCos, the Embedded Configurable Operating System.
+ // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+ //
+ // eCos is free software; you can redistribute it and/or modify it under
+ // the terms of the GNU General Public License as published by the Free
+ // Software Foundation; either version 2 or (at your option) any later version.
+ //
+ // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
+ // WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ // for more details.
+ //
+ // You should have received a copy of the GNU General Public License along
+ // with eCos; if not, write to the Free Software Foundation, Inc.,
+ // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ //
+ // As a special exception, if other files instantiate templates or use macros
+ // or inline functions from this file, or you compile this file and link it
+ // with other works to produce a work based on this file, this file does not
+ // by itself cause the resulting work to be covered by the GNU General Public
+ // License. However the source code for this file must still be made available
+ // in accordance with section (3) of the GNU General Public License.
+ //
+ // This exception does not invalidate any other reasons why a work based on
+ // this file might be covered by the GNU General Public License.
+ //
+ // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+ // at http://sources.redhat.com/ecos/ecos-license/
+ // -------------------------------------------
+ //####ECOSGPLCOPYRIGHTEND####
+ //==========================================================================
+ //#####DESCRIPTIONBEGIN####
+ //
+ // Author(s):    yoshinori sato
+ // Contributors: yoshinori sato
+ // Date:         2002-05-28
+ // Purpose:      RedBoot exec command for uClinux booting
+ //
+ //####DESCRIPTIONEND####
+ //
+ //===========================================================================
+ 
+ #include <redboot.h>
+ 
+ #include <cyg/infra/cyg_type.h>
+ #include <cyg/hal/hal_intr.h>
+ #include <cyg/hal/hal_cache.h>
+ 
+ #define xstr(s) str(s)
+ #define str(s...) #s
+ 
+ static void do_exec(int argc, char *argv[]);
+ RedBoot_cmd("exec", 
+             "Execute an image", 
+             "[-b <command line addr>] [-c \"kernel command line\"]\n"
+ 	    "        [<entry point>]",
+             do_exec
+     );
+ 
+ static void 
+ do_exec(int argc, char *argv[])
+ {
+     cyg_uint32 entry = CYGDAT_REDBOOT_H8300_LINUX_BOOT_ENTRY;
+     cyg_uint32 command_addr = CYGDAT_REDBOOT_H8300_LINUX_COMMAND_START;
+     char *cmd_line = xstr( CYGDAT_REDBOOT_H8300_LINUX_BOOT_COMMAND_LINE );
+     
+     bool command_addr_set,command_line_set;
+ 
+     struct option_info opts[2];
+     char *pcmd;
+     int oldints;
+ 
+     init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM, 
+               (void **)&command_addr, &command_addr_set, "command line address");
+     init_opts(&opts[1], 'c', true, OPTION_ARG_TYPE_STR, 
+               (void **)&cmd_line, &command_line_set, "kernel command line");
+     
+     if (!scan_opts(argc, argv, 1, opts, 2, (void *)&entry, 
+                    OPTION_ARG_TYPE_NUM, "entry address"))
+ 	    return ;
+   
+     diag_printf("Now booting linux kernel:\n");
+     diag_printf(" Entry Address 0x%08x\n", entry);
+     diag_printf(" Cmdline : %s\n", cmd_line);
+ 
+     HAL_DISABLE_INTERRUPTS(oldints);
+     HAL_DCACHE_SYNC();
+     HAL_ICACHE_DISABLE();
+     HAL_DCACHE_DISABLE();
+     HAL_DCACHE_SYNC();
+     HAL_ICACHE_INVALIDATE_ALL();
+     HAL_DCACHE_INVALIDATE_ALL();
+ 
+     pcmd = (char *)command_addr;
+     while ((*pcmd++ = *cmd_line++));
+ 
+     asm ("jmp @%0" : : "r" (entry));
+ }
diff -Nrc ecos/packages/hal/h8300/arch/current/cdl/hal_h8300.cdl ecos.ysato/packages/hal/h8300/arch/current/cdl/hal_h8300.cdl
*** ecos/packages/hal/h8300/arch/current/cdl/hal_h8300.cdl	Sun Jun  2 01:57:07 2002
--- ecos.ysato/packages/hal/h8300/arch/current/cdl/hal_h8300.cdl	Sun Jun  2 00:26:33 2002
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*** 40,49 ****
  # ====================================================================
  ######DESCRIPTIONBEGIN####
  #
! # Author(s):      jskov
  # Original data:  bartv, nickg
! # Contributors:   dmoseley
! # Date:           1999-11-02
  #
  #####DESCRIPTIONEND####
  #
--- 40,49 ----
  # ====================================================================
  ######DESCRIPTIONBEGIN####
  #
! # Author(s):      yoshinori sato
  # Original data:  bartv, nickg
! # Contributors:   yoshinori sato
! # Date:           2002-02-16
  #
  #####DESCRIPTIONEND####
  #
***************
*** 86,89 ****
--- 86,132 ----
          @echo >> $(notdir $@).deps
          @rm vectors.tmp
      }
+     cdl_component CYGPKG_REDBOOT_H8300_OPTIONS {
+         display       "Redboot for H8/300 options"
+         flavor        none
+         no_define
+         parent        CYGPKG_REDBOOT
+         active_if     CYGPKG_REDBOOT
+         description   "
+             This option lists the target's requirements for a valid Redboot
+             configuration."
+ 
+         cdl_component CYGSEM_REDBOOT_H8300_LINUX_BOOT {
+             display        "Support booting uCinux via RedBoot"
+             flavor         bool
+             default_value  1
+             description    "
+                This option enables RedBoot to support booting of a uClinux kernel."
+             compile -library=libextras.a redboot_linux_exec.c
+ 
+             cdl_option CYGDAT_REDBOOT_H8300_LINUX_BOOT_ENTRY {
+                 display        "Default kernel entry address"
+                 flavor         data
+                 default_value  0x400000
+                 description    "
+                    This option uClinux kernel entry address of default."
+             }
+ 
+             cdl_option CYGDAT_REDBOOT_H8300_LINUX_COMMAND_START {
+                 display        "Default kernel command line start address"
+                 flavor         data
+                 default_value  0x5ffe00
+                 description    "
+                    This option uClinux kernel command line start address of default."
+             }
+ 
+             cdl_option CYGDAT_REDBOOT_H8300_LINUX_BOOT_COMMAND_LINE {
+                 display        "Default command line"
+                 flavor         data
+                 default_value  { "console=/dev/ttyS1" }
+                 description    "
+                    This option uClinux kernel startup command line of default."
+             }
+         }
+     }
  }