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| author | David Vincent <freesilicon@gmail.com> | 2014-02-04 08:53:15 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-02-09 09:43:33 +0100 |
| commit | 34ab8ddd04ae08e8bca6d277b4f692f4f303c20d (patch) | |
| tree | c1fc055f0d106c049fd05a9ba4ebc25702d962ea /include | |
| parent | 4f2f9150b748f278a02c7874e9fc3fd026082581 (diff) | |
| download | barebox-34ab8ddd04ae08e8bca6d277b4f692f4f303c20d.tar.gz barebox-34ab8ddd04ae08e8bca6d277b4f692f4f303c20d.tar.xz | |
Load PBL into SRAM
This allows to load all the lowlevel init code, including the
uncompressor, inside SRAM and not just the bare init part. This is
useful when pbl is used as a first-stage bootloader but is loaded by an
external firmware.
Signed-off-by: David Vincent <freesilicon@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/barebox.lds.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/asm-generic/barebox.lds.h b/include/asm-generic/barebox.lds.h index 6d3a69ef20..5dabda3fbb 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 <linux/stringify.h> /* 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)) \ + |