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changeset 2774:1a58c9c41c50

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Apply patch to support SRAM initialization. Fix a few copyright notices.
author nickg
date Mon, 09 Feb 2009 15:57:49 +0000
parents 4db2c98d89f8
children 0f319c78e393
files packages/hal/cortexm/arch/current/ChangeLog packages/hal/cortexm/arch/current/src/cortexm.ld packages/hal/cortexm/arch/current/src/hal_misc.c packages/hal/cortexm/stm32/stm3210e_eval/current/ChangeLog packages/hal/cortexm/stm32/stm3210e_eval/current/include/pkgconf/mlt_cortexm_stm3210e_eval_rom.ldi packages/hal/cortexm/stm32/var/current/ChangeLog packages/hal/cortexm/stm32/var/current/include/var_intr.h packages/hal/cortexm/stm32/var/current/include/var_io.h packages/hal/cortexm/stm32/var/current/src/stm32_misc.c
diffstat 9 files changed, 44 insertions(+), 9 deletions(-) [+]
line wrap: on
line diff
--- a/packages/hal/cortexm/arch/current/ChangeLog
+++ b/packages/hal/cortexm/arch/current/ChangeLog
@@ -1,3 +1,9 @@
+2009-02-07  Chris Holgate  <chris@zynaptic.com>
+
+	* src/hal_misc.c:
+	* src/cortexm.ld: 
+	Modified SRAM linker section to support initialisation from ROM.
+
 2008-12-03  Nick Garnett  <nickg@ecoscentric.com>
 
 	* src/hal_misc.c (hal_deliver_interrupt): Fix instrumentation call
--- a/packages/hal/cortexm/arch/current/src/cortexm.ld
+++ b/packages/hal/cortexm/arch/current/src/cortexm.ld
@@ -235,8 +235,12 @@ OUTPUT_FORMAT(elf32-bigarm)
 
 #define SECTION_sram(_region_, _vma_, _lma_) \
     .sram _vma_ : _lma_ \
-    { FORCE_OUTPUT; *(.sram*) } \
-    > _region_
+    { __sram_data_start = ABSOLUTE (.); \
+    *(.sram*) . = ALIGN (4); } \
+    > _region_ \
+    __srom_data_start = LOADADDR (.sram); \
+    __sram_data_end = .; PROVIDE (__sram_data_end = .); \
+    PROVIDE (__srom_data_end = LOADADDR (.sram) + SIZEOF(.sram));
 
 #define SECTION_data(_region_,  _vma_, _lma_) \
     .data _vma_ : _lma_ \
--- a/packages/hal/cortexm/arch/current/src/hal_misc.c
+++ b/packages/hal/cortexm/arch/current/src/hal_misc.c
@@ -97,6 +97,9 @@ typedef cyg_uint32 cyg_isr(cyg_uint32 ve
 __externC cyg_uint32 __ram_data_start;
 __externC cyg_uint32 __ram_data_end;
 __externC cyg_uint32 __rom_data_start;
+__externC cyg_uint32 __sram_data_start;
+__externC cyg_uint32 __sram_data_end;
+__externC cyg_uint32 __srom_data_start;
 __externC cyg_uint32 __bss_start;
 __externC cyg_uint32 __bss_end;
 
@@ -197,6 +200,15 @@ void hal_reset_vsr( void )
              p++, q++ )
             *p = *q;
     }
+
+    // Relocate data from ROM to SRAM
+    {
+        register cyg_uint32 *p, *q;
+        for( p = &__sram_data_start, q = &__srom_data_start;
+             p < &__sram_data_end;
+             p++, q++ )
+            *p = *q;
+    }
 #endif
 
     // Clear BSS
--- a/packages/hal/cortexm/stm32/stm3210e_eval/current/ChangeLog
+++ b/packages/hal/cortexm/stm32/stm3210e_eval/current/ChangeLog
@@ -1,3 +1,16 @@
+2009-02-04  Nick Garnett  <nickg@ecoscentric.com>
+
+	* include/pkgconf/mlt_cortexm_stm3210e_eval_rom.ldi:
+	* include/pkgconf/mlt_cortexm_stm3210e_eval_ram.ldi:
+	* include/pkgconf/mlt_cortexm_stm3210e_eval_jtag.ldi:
+	* include/pkgconf/mlt_cortexm_stm3210e_eval_sram.ldi:
+	Add .sram section to linker scripts.
+
+2009-02-07  Chris Holgate  <chris@zynaptic.com>
+
+	* include/pkgconf/mlt_cortexm_stm3210e_eval_rom.ldi:
+	Modified SRAM section so that initialisation data is placed in ROM.
+
 2009-01-31  Bart Veer <bartv@ecoscentric.com>
 
 	* cdl/hal_cortexm_stm32_stm3210e_eval.cdl: update compiler flags for gcc 4.x
@@ -58,7 +71,7 @@ 2008-10-06  Nick Garnett  <nickg@ecoscen
 // ####GPLCOPYRIGHTBEGIN####                                                
 // -------------------------------------------                              
 // This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 2008 Free Software Foundation, Inc.                        
+// Copyright (C) 2008, 2009 Free Software Foundation, Inc.                        
 //
 // This program is free software; you can redistribute it and/or modify     
 // it under the terms of the GNU General Public License as published by     
--- a/packages/hal/cortexm/stm32/stm3210e_eval/current/include/pkgconf/mlt_cortexm_stm3210e_eval_rom.ldi
+++ b/packages/hal/cortexm/stm32/stm3210e_eval/current/include/pkgconf/mlt_cortexm_stm3210e_eval_rom.ldi
@@ -24,8 +24,8 @@ SECTIONS
     SECTION_gcc_except_table (flash, ALIGN (0x8), LMA_EQ_VMA)
     SECTION_eh_frame (flash, ALIGN (0x8), LMA_EQ_VMA)
     SECTION_got (flash, ALIGN (0x8), LMA_EQ_VMA)
-    SECTION_sram (sram, 0x20000400, LMA_EQ_VMA)
-    SECTION_data (ram, 0x68000000, FOLLOWING (.got))
+    SECTION_sram (sram, 0x20000400, FOLLOWING (.got))
+    SECTION_data (ram, 0x68000000, FOLLOWING (.sram))
     SECTION_bss (ram, ALIGN (0x8), LMA_EQ_VMA)
     CYG_LABEL_DEFN(__heap1) = ALIGN (0x8);
     SECTIONS_END
--- a/packages/hal/cortexm/stm32/var/current/ChangeLog
+++ b/packages/hal/cortexm/stm32/var/current/ChangeLog
@@ -73,7 +73,7 @@ 2008-10-06  Nick Garnett  <nickg@ecoscen
 // ####GPLCOPYRIGHTBEGIN####                                                
 // -------------------------------------------                              
 // This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 2008 Free Software Foundation, Inc.                        
+// Copyright (C) 2008, 2009 Free Software Foundation, Inc.                        
 //
 // This program is free software; you can redistribute it and/or modify     
 // it under the terms of the GNU General Public License as published by     
--- a/packages/hal/cortexm/stm32/var/current/include/var_intr.h
+++ b/packages/hal/cortexm/stm32/var/current/include/var_intr.h
@@ -10,7 +10,7 @@
 // ####ECOSGPLCOPYRIGHTBEGIN####                                            
 // -------------------------------------------                              
 // This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 2008 Free Software Foundation, Inc.                        
+// Copyright (C) 2008, 2009 Free Software Foundation, 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     
--- a/packages/hal/cortexm/stm32/var/current/include/var_io.h
+++ b/packages/hal/cortexm/stm32/var/current/include/var_io.h
@@ -10,7 +10,7 @@
 // ####ECOSGPLCOPYRIGHTBEGIN####                                            
 // -------------------------------------------                              
 // This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 2008 Free Software Foundation, Inc.                        
+// Copyright (C) 2008, 2009 Free Software Foundation, 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     
--- a/packages/hal/cortexm/stm32/var/current/src/stm32_misc.c
+++ b/packages/hal/cortexm/stm32/var/current/src/stm32_misc.c
@@ -8,7 +8,7 @@
 // ####ECOSGPLCOPYRIGHTBEGIN####                                            
 // -------------------------------------------                              
 // This file is part of eCos, the Embedded Configurable Operating System.   
-// Copyright (C) 2008 Free Software Foundation, Inc.                        
+// Copyright (C) 2008, 2009 Free Software Foundation, 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