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sandbox: Support pre-relocation malloc() 

Set up and zero global data before board_init_f() is called so that we can
remove the need for CONFIG_SYS_GENERIC_GLOBAL_DATA.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2014-07-10 22:23:31 -06:00
parent d59476b644
commit 29afe9e6ed
2 changed files with 6 additions and 0 deletions
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3
README
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@ -3749,6 +3749,9 @@ Configuration Settings:
The memory will be freed (or in fact just forgotton) when The memory will be freed (or in fact just forgotton) when
U-Boot relocates itself. U-Boot relocates itself.
Pre-relocation malloc() is only supported on sandbox
at present but is fairly easy to enable for other archs.
- CONFIG_SYS_BOOTM_LEN: - CONFIG_SYS_BOOTM_LEN:
Normally compressed uImages are limited to an Normally compressed uImages are limited to an
uncompressed size of 8 MBytes. If this is not enough, uncompressed size of 8 MBytes. If this is not enough,

3
arch/sandbox/cpu/start.c
View File

@ -240,6 +240,9 @@ int main(int argc, char *argv[])
memset(&data, '\0', sizeof(data)); memset(&data, '\0', sizeof(data));
gd = &data; gd = &data;
#ifdef CONFIG_SYS_MALLOC_F_LEN
gd->malloc_base = CONFIG_MALLOC_F_ADDR;
#endif
/* Do pre- and post-relocation init */ /* Do pre- and post-relocation init */
board_init_f(0); board_init_f(0);