bsps/powerpc: Add load section for .nocache

c/src/lib/libbsp/powerpc/mpc55xxevb/startup/linkcmds.gwlcfm

@@ -22,5 +22,6 @@ REGION_ALIAS ("REGION_RWEXTRA", RAM_EXT);
 REGION_ALIAS ("REGION_WORK", RAM_EXT);
 REGION_ALIAS ("REGION_STACK", RAM);
 REGION_ALIAS ("REGION_NOCACHE", NOCACHE);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", NOCACHE);
 
 INCLUDE linkcmds.mpc55xx

c/src/lib/libbsp/powerpc/mpc55xxevb/startup/linkcmds.mpc5566evb

@@ -22,5 +22,6 @@ REGION_ALIAS ("REGION_RWEXTRA", RAM_EXT);
 REGION_ALIAS ("REGION_WORK", RAM_EXT);
 REGION_ALIAS ("REGION_STACK", RAM);
 REGION_ALIAS ("REGION_NOCACHE", NOCACHE);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", NOCACHE);
 
 INCLUDE linkcmds.mpc55xx

c/src/lib/libbsp/powerpc/mpc55xxevb/startup/linkcmds.mpc5674fevb

@@ -22,5 +22,6 @@ REGION_ALIAS ("REGION_RWEXTRA", RAM_EXT);
 REGION_ALIAS ("REGION_WORK", RAM_EXT);
 REGION_ALIAS ("REGION_STACK", RAM);
 REGION_ALIAS ("REGION_NOCACHE", NOCACHE);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", ROM);
 
 INCLUDE linkcmds.mpc55xx

c/src/lib/libbsp/powerpc/mpc55xxevb/startup/linkcmds.phycore_mpc5554

@@ -31,5 +31,6 @@ REGION_ALIAS ("REGION_RWEXTRA", RAM_EXT);
 REGION_ALIAS ("REGION_WORK", RAM_EXT);
 REGION_ALIAS ("REGION_STACK", RAM);
 REGION_ALIAS ("REGION_NOCACHE", NOCACHE);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", NOCACHE);
 
 INCLUDE linkcmds.mpc55xx

c/src/lib/libbsp/powerpc/mpc55xxevb/startup/linkcmds.xkt564levb

@@ -27,5 +27,6 @@ REGION_ALIAS ("REGION_RWEXTRA", RAM_0);
 REGION_ALIAS ("REGION_WORK", RAM_1);
 REGION_ALIAS ("REGION_STACK", RAM_1);
 REGION_ALIAS ("REGION_NOCACHE", NOCACHE);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", NOCACHE);
 
 INCLUDE linkcmds.mpc55xx

c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-early.c

@@ -7,7 +7,7 @@
  */
 
 /*
- * Copyright (c) 2008-2011 embedded brains GmbH.  All rights reserved.
+ * Copyright (c) 2008-2012 embedded brains GmbH.  All rights reserved.
  *
  *  embedded brains GmbH
  *  Obere Lagerstr. 30
@@ -23,6 +23,14 @@
 #include <bsp.h>
 #include <bsp/start.h>
 #include <bsp/mpc55xx-config.h>
+#include <bsp/linker-symbols.h>
+
+/* This function is defined in start.S */
+BSP_START_TEXT_SECTION void mpc55xx_start_load_section(
+  void *dst,
+  const void *src,
+  size_t n
+);
 
 static BSP_START_TEXT_SECTION void mpc55xx_start_mmu(void)
 {
@@ -53,6 +61,19 @@ static BSP_START_TEXT_SECTION void mpc55xx_start_internal_ram(void)
   #endif
 }
 
+static BSP_START_TEXT_SECTION void mpc55xx_start_load_nocache_section(void)
+{
+  mpc55xx_start_load_section(
+    bsp_section_nocache_begin,
+    bsp_section_nocache_load_begin,
+    (size_t) bsp_section_nocache_size
+  );
+  rtems_cache_flush_multiple_data_lines(
+    bsp_section_nocache_begin,
+    (size_t) bsp_section_nocache_size
+  );
+}
+
 static BSP_START_TEXT_SECTION void mpc55xx_start_mode_change(void)
 {
   #ifdef MPC55XX_HAS_MODE_CONTROL
@@ -167,6 +188,7 @@ BSP_START_TEXT_SECTION void mpc55xx_start_early(void)
     mpc55xx_start_cache();
   #endif
   mpc55xx_start_internal_ram();
+  mpc55xx_start_load_nocache_section();
   mpc55xx_start_mmu();
   mpc55xx_start_mode_change();
   mpc55xx_start_siu();

c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start.S

@@ -7,7 +7,7 @@
  */
 
 /*
- * Copyright (c) 2008-2011 embedded brains GmbH.  All rights reserved.
+ * Copyright (c) 2008-2012 embedded brains GmbH.  All rights reserved.
  *
  *  embedded brains GmbH
  *  Obere Lagerstr. 30
@@ -21,7 +21,7 @@
  */
 
 #include <bspopts.h>
-
+#include <bsp/linker-symbols.h>
 #include <libcpu/powerpc-utility.h>
 
 #if MPC55XX_CHIP_TYPE / 10 != 551
@@ -41,20 +41,12 @@
 	.extern	__eabi
 	.extern	boot_card
 	.extern	bsp_ram_start
-	.extern	bsp_section_data_begin
-	.extern	bsp_section_data_load_begin
-	.extern	bsp_section_data_size
-	.extern	bsp_section_fast_data_begin
-	.extern	bsp_section_fast_data_load_begin
-	.extern	bsp_section_fast_data_size
-	.extern	bsp_section_fast_text_begin
-	.extern	bsp_section_fast_text_load_begin
-	.extern	bsp_section_fast_text_size
 	.extern	mpc55xx_start_config_mmu_early
 	.extern	mpc55xx_start_config_mmu_early_count
 	.extern	mpc55xx_start_early
 
 	.globl	_start
+	.globl	mpc55xx_start_load_section
 	.globl	mpc55xx_start_mmu_apply_config
 
 #ifdef MPC55XX_BOOTFLAGS
@@ -225,15 +217,15 @@ zero_intermediate_stack_loop:
 	LA	r3, bsp_section_fast_text_begin
 	LA	r4, bsp_section_fast_text_load_begin
 	LA	r5, bsp_section_fast_text_size
-	bl	load_section
+	bl	mpc55xx_start_load_section
 	LA	r3, bsp_section_fast_data_begin
 	LA	r4, bsp_section_fast_data_load_begin
 	LA	r5, bsp_section_fast_data_size
-	bl	load_section
+	bl	mpc55xx_start_load_section
 	LA	r3, bsp_section_data_begin
 	LA	r4, bsp_section_data_load_begin
 	LA	r5, bsp_section_data_size
-	bl	load_section
+	bl	mpc55xx_start_load_section
 
 	/* Set up EABI and SYSV environment */
 	bl	__eabi
@@ -270,7 +262,7 @@ mmu_init_loop:
 	bdnz	mmu_init_loop
 	blr
 
-load_section:
+mpc55xx_start_load_section:
 	cmpw	cr7, r3, r4
 	beqlr	cr7
 	b	memcpy

c/src/lib/libbsp/powerpc/qoriq/startup/linkcmds.qoriq_core_0

@@ -25,7 +25,8 @@ REGION_ALIAS ("REGION_BSS", HIGH);
 REGION_ALIAS ("REGION_RWEXTRA", HIGH);
 REGION_ALIAS ("REGION_WORK", HIGH);
 REGION_ALIAS ("REGION_STACK", HIGH);
-REGION_ALIAS ("REGION_NOCACHE", HIGH);
+REGION_ALIAS ("REGION_NOCACHE", NIRVANA);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", NIRVANA);
 
 bsp_section_robarrier_align = 0x1000000;
 bsp_section_rwbarrier_align = 0x1000000;

c/src/lib/libbsp/powerpc/qoriq/startup/linkcmds.qoriq_core_1

@@ -24,7 +24,8 @@ REGION_ALIAS ("REGION_BSS", RAM);
 REGION_ALIAS ("REGION_RWEXTRA", RAM);
 REGION_ALIAS ("REGION_WORK", RAM);
 REGION_ALIAS ("REGION_STACK", RAM);
-REGION_ALIAS ("REGION_NOCACHE", RAM);
+REGION_ALIAS ("REGION_NOCACHE", NIRVANA);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", NIRVANA);
 
 bsp_section_robarrier_align = 0x1000000;
 bsp_section_rwbarrier_align = 0x1000000;

c/src/lib/libbsp/powerpc/qoriq/startup/linkcmds.qoriq_p1020rdb

@@ -25,7 +25,8 @@ REGION_ALIAS ("REGION_BSS", HIGH);
 REGION_ALIAS ("REGION_RWEXTRA", HIGH);
 REGION_ALIAS ("REGION_WORK", HIGH);
 REGION_ALIAS ("REGION_STACK", HIGH);
-REGION_ALIAS ("REGION_NOCACHE", HIGH);
+REGION_ALIAS ("REGION_NOCACHE", NIRVANA);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", NIRVANA);
 
 bsp_section_robarrier_align = 0x1000000;
 bsp_section_rwbarrier_align = 0x1000000;

c/src/lib/libbsp/powerpc/shared/include/linker-symbols.h

@@ -96,6 +96,8 @@ LINKER_SYMBOL(bsp_section_stack_size)
 LINKER_SYMBOL(bsp_section_nocache_begin)
 LINKER_SYMBOL(bsp_section_nocache_end)
 LINKER_SYMBOL(bsp_section_nocache_size)
+LINKER_SYMBOL(bsp_section_nocache_load_begin)
+LINKER_SYMBOL(bsp_section_nocache_load_end)
 
 #define BSP_FAST_TEXT_SECTION __attribute__((section(".bsp_fast_text")))
 

c/src/lib/libbsp/powerpc/shared/startup/linkcmds.base

@@ -328,8 +328,10 @@ SECTIONS {
 		bsp_section_nocache_begin = .;
 		*(.bsp_nocache)
 		bsp_section_nocache_end = .;
-	} > REGION_NOCACHE AT > REGION_NOCACHE
+	} > REGION_NOCACHE AT > REGION_NOCACHE_LOAD
 	bsp_section_nocache_size = bsp_section_nocache_end - bsp_section_nocache_begin;
+	bsp_section_nocache_load_begin = LOADADDR (.nocache);
+	bsp_section_nocache_load_end = bsp_section_nocache_load_begin + bsp_section_nocache_size;
 
 	/* FIXME */
 	RamBase = ORIGIN (REGION_WORK);

c/src/lib/libbsp/powerpc/t32mppc/startup/linkcmds.t32mppc

@@ -18,6 +18,7 @@ REGION_ALIAS ("REGION_BSS", RAM);
 REGION_ALIAS ("REGION_RWEXTRA", RAM);
 REGION_ALIAS ("REGION_WORK", RAM);
 REGION_ALIAS ("REGION_STACK", RAM);
-REGION_ALIAS ("REGION_NOCACHE", RAM);
+REGION_ALIAS ("REGION_NOCACHE", NIRVANA);
+REGION_ALIAS ("REGION_NOCACHE_LOAD", NIRVANA);
 
 INCLUDE linkcmds.base