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| author | Tom Rini <trini@konsulko.com> | 2015-03-10 19:09:18 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2015-03-10 19:09:18 -0400 |
| commit | b79dadf846e5e140e261bbfa4decd024357702d7 (patch) | |
| tree | bbfed4207c806f34ceb4b608e62cc4fbfa98f91f /common/board_f.c | |
| parent | 1fc42018a0fe833a4332f8f32d6aeb675f3dcd1d (diff) | |
| parent | d5338c693e6a35a7108c184839d688a7377d117c (diff) | |
Merge branch 'master' of git://git.denx.de/u-boot-tegra
Conflicts:
README
Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'common/board_f.c')
| -rw-r--r-- | common/board_f.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/common/board_f.c b/common/board_f.c index fc3e7ddd10..731b539eaa 100644 --- a/common/board_f.c +++ b/common/board_f.c @@ -360,6 +360,18 @@ static int setup_fdt(void) /* Get the top of usable RAM */ __weak ulong board_get_usable_ram_top(ulong total_size) { +#ifdef CONFIG_SYS_SDRAM_BASE + /* + * Detect whether we have so much RAM it goes past the end of our + * 32-bit address space. If so, clip the usable RAM so it doesn't. + */ + if (gd->ram_top < CONFIG_SYS_SDRAM_BASE) + /* + * Will wrap back to top of 32-bit space when reservations + * are made. + */ + return 0; +#endif return gd->ram_top; } |