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-rw-r--r--cpu/mpc5xx/config.mk5
-rw-r--r--cpu/mpc5xx/interrupts.c4
-rw-r--r--cpu/mpc5xx/start.S6
-rw-r--r--cpu/mpc5xx/traps.c16
-rw-r--r--cpu/mpc5xx/u-boot.lds139
5 files changed, 156 insertions, 14 deletions
diff --git a/cpu/mpc5xx/config.mk b/cpu/mpc5xx/config.mk
index 5b26a76..e95b8a1 100644
--- a/cpu/mpc5xx/config.mk
+++ b/cpu/mpc5xx/config.mk
@@ -28,6 +28,9 @@
#
-PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi
+PLATFORM_RELFLAGS += -fPIC -ffixed-r14 -meabi -mrelocatable
PLATFORM_CPPFLAGS += -DCONFIG_5xx -ffixed-r2 -ffixed-r29 -mpowerpc -msoft-float
+
+# Use default linker script. Board port can override in board/*/config.mk
+LDSCRIPT := $(SRCTREE)/cpu/mpc5xx/u-boot.lds
diff --git a/cpu/mpc5xx/interrupts.c b/cpu/mpc5xx/interrupts.c
index 7f6e136..a4f47c7 100644
--- a/cpu/mpc5xx/interrupts.c
+++ b/cpu/mpc5xx/interrupts.c
@@ -178,7 +178,7 @@ void timer_interrupt_cpu (struct pt_regs *regs)
return;
}
-#if (CONFIG_COMMANDS & CFG_CMD_IRQ)
+#if defined(CONFIG_CMD_IRQ)
/*******************************************************************************
*
* irqinfo - print information about IRQs
@@ -204,4 +204,4 @@ int do_irqinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
}
-#endif /* CONFIG_COMMANDS & CFG_CMD_IRQ */
+#endif
diff --git a/cpu/mpc5xx/start.S b/cpu/mpc5xx/start.S
index 087435e..0637003 100644
--- a/cpu/mpc5xx/start.S
+++ b/cpu/mpc5xx/start.S
@@ -155,7 +155,7 @@ in_flash:
/* Initialize some SPRs that are hard to access from C */
/*----------------------------------------------------------------------*/
- lis r3, CFG_IMMR@h /* Pass IMMR as arg1 to C routine */
+ lis r3, CFG_IMMR@h /* Pass IMMR as arg1 to C routine */
lis r2, CFG_INIT_SP_ADDR@h
ori r1, r2, CFG_INIT_SP_ADDR@l /* Set up the stack in internal SRAM */
/* Note: R0 is still 0 here */
@@ -210,7 +210,7 @@ _start_of_vectors:
/* Alignment exception. */
. = 0x600
Alignment:
- EXCEPTION_PROLOG
+ EXCEPTION_PROLOG(SRR0, SRR1)
mfspr r4,DAR
stw r4,_DAR(r21)
mfspr r5,DSISR
@@ -228,7 +228,7 @@ Alignment:
/* Program check exception */
. = 0x700
ProgramCheck:
- EXCEPTION_PROLOG
+ EXCEPTION_PROLOG(SRR0, SRR1)
addi r3,r1,STACK_FRAME_OVERHEAD
li r20,MSR_KERNEL
rlwimi r20,r23,0,16,16 /* copy EE bit from saved MSR */
diff --git a/cpu/mpc5xx/traps.c b/cpu/mpc5xx/traps.c
index 14fd59e..d22b89a 100644
--- a/cpu/mpc5xx/traps.c
+++ b/cpu/mpc5xx/traps.c
@@ -36,11 +36,11 @@
#include <command.h>
#include <asm/processor.h>
-#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#if defined(CONFIG_CMD_KGDB)
int (*debugger_exception_handler)(struct pt_regs *) = 0;
#endif
-#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
+#if defined(CONFIG_CMD_BEDBUG)
extern void do_bedbug_breakpoint(struct pt_regs *);
#endif
@@ -131,7 +131,7 @@ void MachineCheckException(struct pt_regs *regs)
return;
}
-#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#if defined(CONFIG_CMD_KGDB)
if (debugger_exception_handler && (*debugger_exception_handler)(regs))
return;
#endif
@@ -165,7 +165,7 @@ void MachineCheckException(struct pt_regs *regs)
*/
void AlignmentException(struct pt_regs *regs)
{
-#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#if defined(CONFIG_CMD_KGDB)
if (debugger_exception_handler && (*debugger_exception_handler)(regs))
return;
#endif
@@ -179,7 +179,7 @@ void AlignmentException(struct pt_regs *regs)
*/
void ProgramCheckException(struct pt_regs *regs)
{
-#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#if defined(CONFIG_CMD_KGDB)
if (debugger_exception_handler && (*debugger_exception_handler)(regs))
return;
#endif
@@ -193,7 +193,7 @@ void ProgramCheckException(struct pt_regs *regs)
*/
void SoftEmuException(struct pt_regs *regs)
{
-#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#if defined(CONFIG_CMD_KGDB)
if (debugger_exception_handler && (*debugger_exception_handler)(regs))
return;
#endif
@@ -208,7 +208,7 @@ void SoftEmuException(struct pt_regs *regs)
*/
void UnknownException(struct pt_regs *regs)
{
-#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#if defined(CONFIG_CMD_KGDB)
if (debugger_exception_handler && (*debugger_exception_handler)(regs))
return;
#endif
@@ -224,7 +224,7 @@ void DebugException(struct pt_regs *regs)
{
printf("Debugger trap at @ %lx\n", regs->nip );
show_regs(regs);
-#if (CONFIG_COMMANDS & CFG_CMD_BEDBUG)
+#if defined(CONFIG_CMD_BEDBUG)
do_bedbug_breakpoint( regs );
#endif
}
diff --git a/cpu/mpc5xx/u-boot.lds b/cpu/mpc5xx/u-boot.lds
new file mode 100644
index 0000000..10001b1
--- /dev/null
+++ b/cpu/mpc5xx/u-boot.lds
@@ -0,0 +1,139 @@
+/*
+ * (C) Copyright 2001 Wolfgang Denk, DENX Software Engineering, wd@denx.de
+ * (C) Copyright 2003 Martin Winistoerfer, martinwinistoerfer@gmx.ch
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_ARCH(powerpc)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib); SEARCH_DIR(/usr/local/powerpc-any-elf/lib);
+/* Do we need any of these for elf?
+ __DYNAMIC = 0; */
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ . = + SIZEOF_HEADERS;
+ .interp : { *(.interp) }
+ .hash : { *(.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .rel.text : { *(.rel.text) }
+ .rela.text : { *(.rela.text) }
+ .rel.data : { *(.rel.data) }
+ .rela.data : { *(.rela.data) }
+ .rel.rodata : { *(.rel.rodata) }
+ .rela.rodata : { *(.rela.rodata) }
+ .rel.got : { *(.rel.got) }
+ .rela.got : { *(.rela.got) }
+ .rel.ctors : { *(.rel.ctors) }
+ .rela.ctors : { *(.rela.ctors) }
+ .rel.dtors : { *(.rel.dtors) }
+ .rela.dtors : { *(.rela.dtors) }
+ .rel.bss : { *(.rel.bss) }
+ .rela.bss : { *(.rela.bss) }
+ .rel.plt : { *(.rel.plt) }
+ .rela.plt : { *(.rela.plt) }
+ .init : { *(.init) }
+ .plt : { *(.plt) }
+ .text :
+ {
+ /* WARNING - the following is hand-optimized to fit within */
+ /* the sector layout of our flash chips! XXX FIXME XXX */
+
+ cpu/mpc5xx/start.o (.text)
+
+ *(.text)
+ *(.got1)
+ }
+ _etext = .;
+ PROVIDE (etext = .);
+ .rodata :
+ {
+ *(.rodata)
+ *(.rodata1)
+ *(.rodata.str1.4)
+ *(.eh_frame)
+ }
+ .fini : { *(.fini) } =0
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+
+ /* Read-write section, merged into data segment: */
+ . = (. + 0x00FF) & 0xFFFFFF00;
+ _erotext = .;
+ PROVIDE (erotext = .);
+ .reloc :
+ {
+ *(.got)
+ _GOT2_TABLE_ = .;
+ *(.got2)
+ _FIXUP_TABLE_ = .;
+ *(.fixup)
+ }
+ __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+ __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+ .data :
+ {
+ *(.data)
+ *(.data1)
+ *(.sdata)
+ *(.sdata2)
+ *(.dynamic)
+ CONSTRUCTORS
+ }
+ _edata = .;
+ PROVIDE (edata = .);
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+
+ . = .;
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ . = ALIGN(256);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(256);
+ __init_end = .;
+
+ __bss_start = .;
+ .bss :
+ {
+ *(.sbss) *(.scommon)
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ }
+
+ _end = . ;
+ PROVIDE (end = .);
+/* . = env_start;
+ .ppcenv :
+ {
+ common/environment.o (.ppcenv)
+ }
+*/
+}
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