R0: function argument word/integer result
R1-R3: function argument word
- R9: GOT pointer
- R10: stack limit (used only if stack checking if enabled)
+ R9: platform specific
+ R10: stack limit (used only if stack checking is enabled)
R11: argument (frame) pointer
R12: temporary workspace
R13: stack pointer
R14: link register
R15: program counter
- ==> U-Boot will use R8 to hold a pointer to the global data
+ ==> U-Boot will use R9 to hold a pointer to the global data
+
+ Note: on ARM, only R_ARM_RELATIVE relocations are supported.
On Nios II, the ABI is documented here:
http://www.altera.com/literature/hb/nios2/n2cpu_nii51016.pdf
endif
LDFLAGS_FINAL += --gc-sections
-PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
+PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections \
+ -fno-common -ffixed-r9 -msoft-float
# Support generic board on ARM
__HAVE_ARCH_GENERIC_BOARD := y
endif
endif
-# check that only R_ARM_RELATIVE relocations are generated
ifneq ($(CONFIG_SPL_BUILD),y)
-ALL-y += checkarmreloc
+# Check that only R_ARM_RELATIVE relocations are generated.
+ALL-y += checkarmreloc
+# The movt / movw can hardcode 16 bit parts of the addresses in the
+# instruction. Relocation is not supported for that case, so disable
+# such usage by requiring word relocations.
+PLATFORM_CPPFLAGS += $(call cc-option, -mword-relocations)
endif
#
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
# Make ARMv5 to allow more compilers to work, even though its v6.
PLATFORM_CPPFLAGS += -march=armv5
#
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
# Make ARMv5 to allow more compilers to work, even though its v6.
PLATFORM_CPPFLAGS += -march=armv5t
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
PLATFORM_CPPFLAGS += -march=armv4 -mtune=arm7tdmi
# =========================================================================
#
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
PLATFORM_CPPFLAGS += -march=armv4
# =========================================================================
#
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
PLATFORM_CPPFLAGS += -march=armv4
# =========================================================================
#
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
PLATFORM_CPPFLAGS += -march=armv5te
# =========================================================================
#
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
PLATFORM_CPPFLAGS += -march=armv4
# =========================================================================
#
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
PLATFORM_CPPFLAGS += -march=armv4
# =========================================================================
#
#
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
# If armv7-a is not supported by GCC fall-back to armv5, which is
# supported by more tool-chains
ldr sp, =CONFIG_SYS_INIT_SP_ADDR
bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
#ifdef CONFIG_SPL_BUILD
- ldr r8, =gdata
+ ldr r9, =gdata
#else
sub sp, #GD_SIZE
bic sp, sp, #7
- mov r8, sp
+ mov r9, sp
#endif
/*
* Save the old lr(passed in ip) and the current lr to stack
#
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
# Make ARMv5 to allow more compilers to work, even though its v7a.
PLATFORM_CPPFLAGS += -march=armv5
SCUTIMER_CONTROL_ENABLE_MASK;
/* Load the timer counter register */
- writel(0xFFFFFFFF, &timer_base->counter);
+ writel(0xFFFFFFFF, &timer_base->load);
/*
* Start the A9Timer device
BIG_ENDIAN = y
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float -mbig-endian
+PLATFORM_RELFLAGS += -mbig-endian
PLATFORM_CPPFLAGS += -mbig-endian -march=armv5te -mtune=strongarm1100
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
PLATFORM_CPPFLAGS += -mcpu=xscale
# =========================================================================
#
# SPDX-License-Identifier: GPL-2.0+
#
-PLATFORM_RELFLAGS += -fno-common -ffixed-r8 -msoft-float
-
PLATFORM_CPPFLAGS += -march=armv4 -mtune=strongarm1100
# =========================================================================
#
#include <asm-generic/global_data.h>
-#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r8")
+#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r9")
#endif /* __ASM_GBL_DATA_H */
bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
sub sp, #GD_SIZE /* allocate one GD above SP */
bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
- mov r8, sp /* GD is above SP */
+ mov r9, sp /* GD is above SP */
mov r0, #0
bl board_init_f
* 'here' but relocated.
*/
- ldr sp, [r8, #GD_START_ADDR_SP] /* sp = gd->start_addr_sp */
+ ldr sp, [r9, #GD_START_ADDR_SP] /* sp = gd->start_addr_sp */
bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
- ldr r8, [r8, #GD_BD] /* r8 = gd->bd */
- sub r8, r8, #GD_SIZE /* new GD is below bd */
+ ldr r9, [r9, #GD_BD] /* r9 = gd->bd */
+ sub r9, r9, #GD_SIZE /* new GD is below bd */
adr lr, here
- ldr r0, [r8, #GD_RELOC_OFF] /* r0 = gd->reloc_off */
+ ldr r0, [r9, #GD_RELOC_OFF] /* r0 = gd->reloc_off */
add lr, lr, r0
- ldr r0, [r8, #GD_RELOCADDR] /* r0 = gd->relocaddr */
+ ldr r0, [r9, #GD_RELOCADDR] /* r0 = gd->relocaddr */
b relocate_code
here:
bl red_led_on
/* call board_init_r(gd_t *id, ulong dest_addr) */
- mov r0, r8 /* gd_t */
- ldr r1, [r8, #GD_RELOCADDR] /* dest_addr */
+ mov r0, r9 /* gd_t */
+ ldr r1, [r9, #GD_RELOCADDR] /* dest_addr */
/* call board_init_r */
ldr pc, =board_init_r /* this is auto-relocated! */
ENTRY(relocate_code)
ldr r1, =__image_copy_start /* r1 <- SRC &__image_copy_start */
- subs r9, r0, r1 /* r9 <- relocation offset */
+ subs r4, r0, r1 /* r4 <- relocation offset */
beq relocate_done /* skip relocation */
ldr r2, =__image_copy_end /* r2 <- SRC &__image_copy_end */
bne fixnext
/* relative fix: increase location by offset */
- add r0, r0, r9
+ add r0, r0, r4
ldr r1, [r0]
- add r1, r1, r9
+ add r1, r1, r4
str r1, [r0]
fixnext:
cmp r2, r3
* Size of malloc() pool
*/
-#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 520*1024)
+#define CONFIG_SYS_MALLOC_LEN (4 * 1024 * 1024)
/*
* sdram
projects / kernel / u-boot.git / commitdiff