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-rw-r--r--arch/arm/cpu/arm920t/Makefile4
-rw-r--r--arch/arm/cpu/arm920t/a320/Makefile4
-rw-r--r--arch/arm/cpu/arm920t/at91/Makefile4
-rw-r--r--arch/arm/cpu/arm920t/at91/reset.c8
-rw-r--r--arch/arm/cpu/arm920t/at91/timer.c29
-rw-r--r--arch/arm/cpu/arm920t/at91rm9200/Makefile4
-rw-r--r--arch/arm/cpu/arm920t/ep93xx/Makefile4
-rw-r--r--arch/arm/cpu/arm920t/imx/Makefile4
-rw-r--r--arch/arm/cpu/arm920t/ks8695/Makefile4
-rw-r--r--arch/arm/cpu/arm920t/s3c24x0/Makefile4
-rw-r--r--arch/arm/cpu/arm920t/start.S138
-rw-r--r--arch/arm/cpu/arm920t/u-boot.lds38
12 files changed, 131 insertions, 114 deletions
diff --git a/arch/arm/cpu/arm920t/Makefile b/arch/arm/cpu/arm920t/Makefile
index cbb13b2..dcc7782 100644
--- a/arch/arm/cpu/arm920t/Makefile
+++ b/arch/arm/cpu/arm920t/Makefile
@@ -23,7 +23,7 @@
include $(TOPDIR)/config.mk
-LIB = $(obj)lib$(CPU).a
+LIB = $(obj)lib$(CPU).o
START = start.o
@@ -37,7 +37,7 @@ START := $(addprefix $(obj),$(START))
all: $(obj).depend $(START) $(LIB)
$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
#########################################################################
diff --git a/arch/arm/cpu/arm920t/a320/Makefile b/arch/arm/cpu/arm920t/a320/Makefile
index f030c53..31da706 100644
--- a/arch/arm/cpu/arm920t/a320/Makefile
+++ b/arch/arm/cpu/arm920t/a320/Makefile
@@ -23,7 +23,7 @@
include $(TOPDIR)/config.mk
-LIB = $(obj)lib$(SOC).a
+LIB = $(obj)lib$(SOC).o
SOBJS += reset.o
COBJS += timer.o
@@ -35,7 +35,7 @@ OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
all: $(obj).depend $(LIB)
$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
#########################################################################
diff --git a/arch/arm/cpu/arm920t/at91/Makefile b/arch/arm/cpu/arm920t/at91/Makefile
index d8a4383..5c71b77 100644
--- a/arch/arm/cpu/arm920t/at91/Makefile
+++ b/arch/arm/cpu/arm920t/at91/Makefile
@@ -23,7 +23,7 @@
include $(TOPDIR)/config.mk
-LIB = $(obj)lib$(SOC).a
+LIB = $(obj)lib$(SOC).o
SOBJS += lowlevel_init.o
COBJS += reset.o
@@ -35,7 +35,7 @@ OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
all: $(obj).depend $(LIB)
$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
#########################################################################
diff --git a/arch/arm/cpu/arm920t/at91/reset.c b/arch/arm/cpu/arm920t/at91/reset.c
index ce9c156..51043ec 100644
--- a/arch/arm/cpu/arm920t/at91/reset.c
+++ b/arch/arm/cpu/arm920t/at91/reset.c
@@ -35,7 +35,10 @@
#include <asm/arch/hardware.h>
#include <asm/arch/at91_st.h>
-void board_reset(void) __attribute__((__weak__));
+void __attribute__((weak)) board_reset(void)
+{
+ /* true empty function for defining weak symbol */
+}
void reset_cpu(ulong ignored)
{
@@ -45,8 +48,7 @@ void reset_cpu(ulong ignored)
serial_exit();
#endif
- if (board_reset)
- board_reset();
+ board_reset();
/* Reset the cpu by setting up the watchdog timer */
writel(AT91_ST_WDMR_RSTEN | AT91_ST_WDMR_EXTEN | AT91_ST_WDMR_WDV(2),
diff --git a/arch/arm/cpu/arm920t/at91/timer.c b/arch/arm/cpu/arm920t/at91/timer.c
index 91377d4..d9a024f 100644
--- a/arch/arm/cpu/arm920t/at91/timer.c
+++ b/arch/arm/cpu/arm920t/at91/timer.c
@@ -32,17 +32,16 @@
#include <common.h>
-#include <asm/io.h>
-#include <asm/hardware.h>
+#include <asm/arch/io.h>
+#include <asm/arch/hardware.h>
#include <asm/arch/at91_tc.h>
#include <asm/arch/at91_pmc.h>
+DECLARE_GLOBAL_DATA_PTR;
+
/* the number of clocks per CONFIG_SYS_HZ */
#define TIMER_LOAD_VAL (CONFIG_SYS_HZ_CLOCK/CONFIG_SYS_HZ)
-static u32 timestamp;
-static u32 lastinc;
-
int timer_init(void)
{
at91_tc_t *tc = (at91_tc_t *) AT91_TC_BASE;
@@ -64,8 +63,8 @@ int timer_init(void)
writel(TIMER_LOAD_VAL, &tc->tc[0].rc);
writel(AT91_TC_CCR_SWTRG | AT91_TC_CCR_CLKEN, &tc->tc[0].ccr);
- lastinc = 0;
- timestamp = 0;
+ gd->lastinc = 0;
+ gd->tbl = 0;
return 0;
}
@@ -86,7 +85,7 @@ ulong get_timer(ulong base)
void set_timer(ulong t)
{
- timestamp = t;
+ gd->tbl = t;
}
void __udelay(unsigned long usec)
@@ -98,8 +97,8 @@ void reset_timer_masked(void)
{
/* reset time */
at91_tc_t *tc = (at91_tc_t *) AT91_TC_BASE;
- lastinc = readl(&tc->tc[0].cv) & 0x0000ffff;
- timestamp = 0;
+ gd->lastinc = readl(&tc->tc[0].cv) & 0x0000ffff;
+ gd->tbl = 0;
}
ulong get_timer_raw(void)
@@ -109,16 +108,16 @@ ulong get_timer_raw(void)
now = readl(&tc->tc[0].cv) & 0x0000ffff;
- if (now >= lastinc) {
+ if (now >= gd->lastinc) {
/* normal mode */
- timestamp += now - lastinc;
+ gd->tbl += now - gd->lastinc;
} else {
/* we have an overflow ... */
- timestamp += now + TIMER_LOAD_VAL - lastinc;
+ gd->tbl += now + TIMER_LOAD_VAL - gd->lastinc;
}
- lastinc = now;
+ gd->lastinc = now;
- return timestamp;
+ return gd->tbl;
}
ulong get_timer_masked(void)
diff --git a/arch/arm/cpu/arm920t/at91rm9200/Makefile b/arch/arm/cpu/arm920t/at91rm9200/Makefile
index 114d8ad..7530e6a 100644
--- a/arch/arm/cpu/arm920t/at91rm9200/Makefile
+++ b/arch/arm/cpu/arm920t/at91rm9200/Makefile
@@ -23,7 +23,7 @@
include $(TOPDIR)/config.mk
-LIB = $(obj)lib$(SOC).a
+LIB = $(obj)lib$(SOC).o
SOBJS += lowlevel_init.o
@@ -44,7 +44,7 @@ OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS) $(COBJS-y))
all: $(obj).depend $(LIB)
$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
#########################################################################
diff --git a/arch/arm/cpu/arm920t/ep93xx/Makefile b/arch/arm/cpu/arm920t/ep93xx/Makefile
index 01a2f55..1d6a538 100644
--- a/arch/arm/cpu/arm920t/ep93xx/Makefile
+++ b/arch/arm/cpu/arm920t/ep93xx/Makefile
@@ -32,7 +32,7 @@
#
include $(TOPDIR)/config.mk
-LIB = $(obj)lib$(SOC).a
+LIB = $(obj)lib$(SOC).o
COBJS = cpu.o led.o speed.o timer.o
SOBJS = lowlevel_init.o
@@ -43,7 +43,7 @@ OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
all: $(obj).depend $(LIB)
$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
#########################################################################
diff --git a/arch/arm/cpu/arm920t/imx/Makefile b/arch/arm/cpu/arm920t/imx/Makefile
index 28945e2..32b41b3 100644
--- a/arch/arm/cpu/arm920t/imx/Makefile
+++ b/arch/arm/cpu/arm920t/imx/Makefile
@@ -23,7 +23,7 @@
include $(TOPDIR)/config.mk
-LIB = $(obj)lib$(SOC).a
+LIB = $(obj)lib$(SOC).o
COBJS += generic.o
COBJS += speed.o
@@ -35,7 +35,7 @@ OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
all: $(obj).depend $(LIB)
$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
#########################################################################
diff --git a/arch/arm/cpu/arm920t/ks8695/Makefile b/arch/arm/cpu/arm920t/ks8695/Makefile
index f53fdc2..00ce62b 100644
--- a/arch/arm/cpu/arm920t/ks8695/Makefile
+++ b/arch/arm/cpu/arm920t/ks8695/Makefile
@@ -23,7 +23,7 @@
include $(TOPDIR)/config.mk
-LIB = $(obj)lib$(SOC).a
+LIB = $(obj)lib$(SOC).o
SOBJS = lowlevel_init.o
@@ -35,7 +35,7 @@ OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))
all: $(obj).depend $(LIB)
$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
#########################################################################
diff --git a/arch/arm/cpu/arm920t/s3c24x0/Makefile b/arch/arm/cpu/arm920t/s3c24x0/Makefile
index 7e8d6ed..bd53724 100644
--- a/arch/arm/cpu/arm920t/s3c24x0/Makefile
+++ b/arch/arm/cpu/arm920t/s3c24x0/Makefile
@@ -23,7 +23,7 @@
include $(TOPDIR)/config.mk
-LIB = $(obj)lib$(SOC).a
+LIB = $(obj)lib$(SOC).o
COBJS-$(CONFIG_USE_IRQ) += interrupts.o
COBJS-y += speed.o
@@ -38,7 +38,7 @@ OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS-y))
all: $(obj).depend $(LIB)
$(LIB): $(OBJS)
- $(AR) $(ARFLAGS) $@ $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
#########################################################################
diff --git a/arch/arm/cpu/arm920t/start.S b/arch/arm/cpu/arm920t/start.S
index d4edde7..aa014d0 100644
--- a/arch/arm/cpu/arm920t/start.S
+++ b/arch/arm/cpu/arm920t/start.S
@@ -77,14 +77,17 @@ _TEXT_BASE:
/*
* These are defined in the board-specific linker script.
+ * Subtracting _start from them lets the linker put their
+ * relative position in the executable instead of leaving
+ * them null.
*/
-.globl _bss_start
-_bss_start:
- .word __bss_start
+.globl _bss_start_ofs
+_bss_start_ofs:
+ .word __bss_start - _start
-.globl _bss_end
-_bss_end:
- .word _end
+.globl _bss_end_ofs
+_bss_end_ofs:
+ .word _end - _start
#ifdef CONFIG_USE_IRQ
/* IRQ stack memory (calculated at run-time) */
@@ -103,30 +106,6 @@ FIQ_STACK_START:
IRQ_STACK_START_IN:
.word 0x0badc0de
-.globl _datarel_start
-_datarel_start:
- .word __datarel_start
-
-.globl _datarelrolocal_start
-_datarelrolocal_start:
- .word __datarelrolocal_start
-
-.globl _datarellocal_start
-_datarellocal_start:
- .word __datarellocal_start
-
-.globl _datarelro_start
-_datarelro_start:
- .word __datarelro_start
-
-.globl _got_start
-_got_start:
- .word __got_start
-
-.globl _got_end
-_got_end:
- .word __got_end
-
/*
* the actual start code
*/
@@ -205,6 +184,7 @@ copyex:
/* Set stackpointer in internal RAM to call board_init_f */
call_board_init_f:
ldr sp, =(CONFIG_SYS_INIT_SP_ADDR)
+ bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
ldr r0,=0x00000000
bl board_init_f
@@ -222,56 +202,73 @@ relocate_code:
mov r4, r0 /* save addr_sp */
mov r5, r1 /* save addr of gd */
mov r6, r2 /* save addr of destination */
- mov r7, r2 /* save addr of destination */
/* Set up the stack */
stack_setup:
mov sp, r4
adr r0, _start
- ldr r2, _TEXT_BASE
- ldr r3, _bss_start
- sub r2, r3, r2 /* r2 <- size of armboot */
- add r2, r0, r2 /* r2 <- source end address */
cmp r0, r6
- beq clear_bss
+ beq clear_bss /* skip relocation */
+ mov r1, r6 /* r1 <- scratch for copy_loop */
+ ldr r2, _TEXT_BASE
+ ldr r3, _bss_start_ofs
+ add r2, r0, r3 /* r2 <- source end address */
copy_loop:
ldmia r0!, {r9-r10} /* copy from source address [r0] */
- stmia r6!, {r9-r10} /* copy to target address [r1] */
+ stmia r1!, {r9-r10} /* copy to target address [r1] */
cmp r0, r2 /* until source end address [r2] */
blo copy_loop
#ifndef CONFIG_PRELOADER
- /* fix got entries */
- ldr r1, _TEXT_BASE /* Text base */
- mov r0, r7 /* reloc addr */
- ldr r2, _got_start /* addr in Flash */
- ldr r3, _got_end /* addr in Flash */
- sub r3, r3, r1
- add r3, r3, r0
- sub r2, r2, r1
- add r2, r2, r0
-
+ /*
+ * fix .rel.dyn relocations
+ */
+ ldr r0, _TEXT_BASE /* r0 <- Text base */
+ sub r9, r6, r0 /* r9 <- relocation offset */
+ ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */
+ add r10, r10, r0 /* r10 <- sym table in FLASH */
+ ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */
+ add r2, r2, r0 /* r2 <- rel dyn start in FLASH */
+ ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */
+ add r3, r3, r0 /* r3 <- rel dyn end in FLASH */
fixloop:
- ldr r4, [r2]
- sub r4, r4, r1
- add r4, r4, r0
- str r4, [r2]
- add r2, r2, #4
+ ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */
+ add r0, r0, r9 /* r0 <- location to fix up in RAM */
+ ldr r1, [r2, #4]
+ and r7, r1, #0xff
+ cmp r7, #23 /* relative fixup? */
+ beq fixrel
+ cmp r7, #2 /* absolute fixup? */
+ beq fixabs
+ /* ignore unknown type of fixup */
+ b fixnext
+fixabs:
+ /* absolute fix: set location to (offset) symbol value */
+ mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */
+ add r1, r10, r1 /* r1 <- address of symbol in table */
+ ldr r1, [r1, #4] /* r1 <- symbol value */
+ add r1, r9 /* r1 <- relocated sym addr */
+ b fixnext
+fixrel:
+ /* relative fix: increase location by offset */
+ ldr r1, [r0]
+ add r1, r1, r9
+fixnext:
+ str r1, [r0]
+ add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
cmp r2, r3
blo fixloop
#endif
clear_bss:
#ifndef CONFIG_PRELOADER
- ldr r0, _bss_start
- ldr r1, _bss_end
+ ldr r0, _bss_start_ofs
+ ldr r1, _bss_end_ofs
ldr r3, _TEXT_BASE /* Text base */
- mov r4, r7 /* reloc addr */
- sub r0, r0, r3
+ mov r4, r6 /* reloc addr */
add r0, r0, r4
- sub r1, r1, r3
add r1, r1, r4
mov r2, #0x00000000 /* clear */
@@ -289,24 +286,33 @@ clbss_l:str r2, [r0] /* clear loop... */
* initialization, now running from RAM.
*/
#ifdef CONFIG_NAND_SPL
- ldr pc, _nand_boot
+ ldr r0, _nand_boot_ofs
+ mov pc, r0
-_nand_boot: .word nand_boot
+_nand_boot_ofs:
+ .word nand_boot
#else
- ldr r0, _TEXT_BASE
- ldr r2, _board_init_r
- sub r2, r2, r0
- add r2, r2, r7 /* position from board_init_r in RAM */
+ ldr r0, _board_init_r_ofs
+ adr r1, _start
+ add lr, r0, r1
+ add lr, lr, r9
/* setup parameters for board_init_r */
mov r0, r5 /* gd_t */
- mov r1, r7 /* dest_addr */
+ mov r1, r6 /* dest_addr */
/* jump to it ... */
- mov lr, r2
mov pc, lr
-_board_init_r: .word board_init_r
+_board_init_r_ofs:
+ .word board_init_r - _start
#endif
+_rel_dyn_start_ofs:
+ .word __rel_dyn_start - _start
+_rel_dyn_end_ofs:
+ .word __rel_dyn_end - _start
+_dynsym_start_ofs:
+ .word __dynsym_start - _start
+
/*
*************************************************************************
*
diff --git a/arch/arm/cpu/arm920t/u-boot.lds b/arch/arm/cpu/arm920t/u-boot.lds
index 6985434..a6f8b56 100644
--- a/arch/arm/cpu/arm920t/u-boot.lds
+++ b/arch/arm/cpu/arm920t/u-boot.lds
@@ -49,28 +49,38 @@ SECTIONS
. = ALIGN(4);
.data : {
*(.data)
- __datarel_start = .;
- *(.data.rel)
- __datarelrolocal_start = .;
- *(.data.rel.ro.local)
- __datarellocal_start = .;
- *(.data.rel.local)
- __datarelro_start = .;
- *(.data.rel.ro)
}
- __got_start = .;
. = ALIGN(4);
- .got : { *(.got) }
- __got_end = .;
. = .;
__u_boot_cmd_start = .;
.u_boot_cmd : { *(.u_boot_cmd) }
__u_boot_cmd_end = .;
. = ALIGN(4);
- __bss_start = .;
- .bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
- _end = .;
+
+ .rel.dyn : {
+ __rel_dyn_start = .;
+ *(.rel*)
+ __rel_dyn_end = .;
+ }
+
+ .dynsym : {
+ __dynsym_start = .;
+ *(.dynsym)
+ }
+
+ .bss __rel_dyn_start (OVERLAY) : {
+ __bss_start = .;
+ *(.bss)
+ . = ALIGN(4);
+ _end = .;
+ }
+
+ /DISCARD/ : { *(.dynstr*) }
+ /DISCARD/ : { *(.dynamic*) }
+ /DISCARD/ : { *(.plt*) }
+ /DISCARD/ : { *(.interp*) }
+ /DISCARD/ : { *(.gnu*) }
}
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