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| author | Ahmad Fatoum <a.fatoum@pengutronix.de> | 2023-05-31 19:51:57 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2023-06-06 11:42:53 +0200 |
| commit | a3e42ff1571c8c52f5cc0f71c3749071bae6d498 (patch) | |
| tree | 498cad882fb20c014563703e9215b88b7c407015 /arch/arm/lib/pbl.lds.S | |
| parent | b763981675d80e7c7d99d4973af8f4dd72b8e054 (diff) | |
| download | barebox-a3e42ff1571c8c52f5cc0f71c3749071bae6d498.tar.gz barebox-a3e42ff1571c8c52f5cc0f71c3749071bae6d498.tar.xz | |
ARM64: cpu: support 64-bit stack top in ENTRY_FUNCTION_WITHSTACK
ENTRY_FUNCTION_WITHSTACK was written with the naive assumption that
there will always be some memory in the first 32-bit of the address
space to be used as early stack. There are SoCs out there though with
sole on-chip SRAM > 4G. Accommodate this by accepting full 64-bit stack
pointers in ENTRY_FUNCTION_WITHSTACK.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20230531175157.1442379-1-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Lior Weintraub <liorw@pliops.com>
Diffstat (limited to 'arch/arm/lib/pbl.lds.S')
| -rw-r--r-- | arch/arm/lib/pbl.lds.S | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/lib/pbl.lds.S b/arch/arm/lib/pbl.lds.S index 114ec7bc81..2b4b1d6a95 100644 --- a/arch/arm/lib/pbl.lds.S +++ b/arch/arm/lib/pbl.lds.S @@ -4,6 +4,7 @@ #include <linux/sizes.h> #include <asm/barebox.lds.h> #include <asm-generic/memory_layout.h> +#include <asm-generic/pointer.h> #ifdef CONFIG_PBL_RELOCATABLE #define BASE 0x0 @@ -44,14 +45,14 @@ SECTIONS . = ALIGN(4); .rodata : { *(.rodata*) } - . = ALIGN(4); + . = ALIGN(ASM_SZPTR); __pbl_board_stack_top = .; .rodata.pbl_board_stack_top : { *(.pbl_board_stack_top_*) /* Dummy for when BootROM sets up usable stack */ - LONG(0x00000000); + ASM_LD_PTR(0x00000000) } - ASSERT(. - __pbl_board_stack_top <= 8, "Only One PBL per Image allowed") + ASSERT(. - __pbl_board_stack_top <= 2 * ASM_SZPTR, "Only One PBL per Image allowed") .barebox_imd : { BAREBOX_IMD } |