diff --git a/arch/arm/lib/pbl.lds.S b/arch/arm/lib/pbl.lds.S index 0954c89ce..d7a3cc522 100644 --- a/arch/arm/lib/pbl.lds.S +++ b/arch/arm/lib/pbl.lds.S @@ -54,6 +54,7 @@ SECTIONS /DISCARD/ : { *(.ARM.ex*) } BAREBOX_BARE_INIT_SIZE + BAREBOX_PBL_SIZE . = ALIGN(4); .rodata : { *(.rodata*) } diff --git a/common/Kconfig b/common/Kconfig index 8af7ec1a8..b65bdd8b2 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -145,13 +145,24 @@ config BAREBOX_MAX_IMAGE_SIZE help Define the maximum size of barebox -config BAREBOX_MAX_BARE_INIT_SIZE - prompt "Maximum bare_init size" +config BAREBOX_MAX_PBL_SIZE + depends on PBL_IMAGE + prompt "Maximum pre-bootloader size" hex default 0xffffffff + help + On some hardware the ROM code can load the pbl into SRAM, but not + the whole image. This option specifies how big the pbl may get. + +config BAREBOX_MAX_BARE_INIT_SIZE + prompt "Maximum bare_init size" + hex + range 0x0 BAREBOX_MAX_PBL_SIZE if LOAD_PBL_SRAM + default BAREBOX_MAX_PBL_SIZE if LOAD_PBL_SRAM + default 0xffffffff help Define the maximum size of bare_init - this will allow your bare_init will fit in SRAM as example + this will allow your bare_init to fit in SRAM as example ARCH can overwrite it via ARCH_BAREBOX_MAX_BARE_INIT_SIZE config HAVE_CONFIGURABLE_MEMORY_LAYOUT diff --git a/include/asm-generic/barebox.lds.h b/include/asm-generic/barebox.lds.h index 6d3a69ef2..5dabda3fb 100644 --- a/include/asm-generic/barebox.lds.h +++ b/include/asm-generic/barebox.lds.h @@ -60,6 +60,13 @@ CONFIG_ARCH_BAREBOX_MAX_BARE_INIT_SIZE < CONFIG_BAREBOX_MAX_BARE_INIT_SIZE #define MAX_BARE_INIT_SIZE CONFIG_BAREBOX_MAX_BARE_INIT_SIZE #endif +#if defined(CONFIG_ARCH_BAREBOX_MAX_PBL_SIZE) && \ +CONFIG_ARCH_BAREBOX_MAX_PBL_SIZE < CONFIG_BAREBOX_MAX_PBL_SIZE +#define MAX_PBL_SIZE CONFIG_ARCH_BAREBOX_MAX_PBL_SIZE +#else +#define MAX_PBL_SIZE CONFIG_BAREBOX_MAX_PBL_SIZE +#endif + #include /* use 2 ASSERT because ld can not accept '"size" "10"' format */ #define BAREBOX_BARE_INIT_SIZE \ @@ -67,3 +74,9 @@ CONFIG_ARCH_BAREBOX_MAX_BARE_INIT_SIZE < CONFIG_BAREBOX_MAX_BARE_INIT_SIZE ASSERT(_barebox_bare_init_size < MAX_BARE_INIT_SIZE, "Barebox bare_init size > ") \ ASSERT(_barebox_bare_init_size < MAX_BARE_INIT_SIZE, __stringify(MAX_BARE_INIT_SIZE)) \ +#define BAREBOX_PBL_SIZE \ + _barebox_pbl_size = __bss_start - _text; \ + ASSERT(MAX_BARE_INIT_SIZE <= MAX_PBL_SIZE, "bare_init cannot be bigger than pbl") \ + ASSERT(_barebox_pbl_size < MAX_PBL_SIZE, "Barebox pbl size > ") \ + ASSERT(_barebox_pbl_size < MAX_PBL_SIZE, __stringify(MAX_PBL_SIZE)) \ +