[U-Boot] [PATCH] Ensure gd->ram_size end stays on 4k page boundary when 'hiding' RAM
Signed-off-by: Gray Remlin g_remlin@rocketmail.com --- arch/arm/lib/board.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index 22bd2c9..c1b21f5 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -531,8 +531,9 @@ void board_init_f (ulong bootflag) * arch/powerpc with bootwrapper support, that recalculate the * memory size from the SDRAM controller setup will have to * get fixed. + * Ensure gd->ram_size end is still on a 4k page boundary. */ - gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE; + gd->ram_size -= ((CONFIG_SYS_MEM_TOP_HIDE + 0xFFF) & ~(0xFFF)); #endif
addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size; --
On Fri, Oct 15, 2010 at 03:51:48PM +0100, Gray Remlin wrote:
Signed-off-by: Gray Remlin g_remlin@rocketmail.com
arch/arm/lib/board.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index 22bd2c9..c1b21f5 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -531,8 +531,9 @@ void board_init_f (ulong bootflag) * arch/powerpc with bootwrapper support, that recalculate the * memory size from the SDRAM controller setup will have to * get fixed.
* Ensure gd->ram_size end is still on a 4k page boundary. */
gd->ram_size -= CONFIG_SYS_MEM_TOP_HIDE;
gd->ram_size -= ((CONFIG_SYS_MEM_TOP_HIDE + 0xFFF) & ~(0xFFF));#endif
How about this easier to read version: gd->ram_size -= roundup(CONFIG_SYS_MEM_TOP_HIDE, 4096);
Ira
addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;-- _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
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Gray Remlin -
Ira W. Snyder