Hi Xiubo,
On Mon, 7 Jul 2014 13:19:11 +0800, Xiubo Li Li.Xiubo@freescale.com wrote:
This adds CONFIG_TLB_SIZE for individual board, whose TLB size maybe larger than PGTABLE_SIZE.
Signed-off-by: Xiubo Li Li.Xiubo@freescale.com
arch/arm/lib/board.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/arm/lib/board.c b/arch/arm/lib/board.c index dc34190..b7327ce 100644 --- a/arch/arm/lib/board.c +++ b/arch/arm/lib/board.c @@ -353,7 +353,11 @@ void board_init_f(ulong bootflag)
#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF)) /* reserve TLB table */ +#ifdef CONFIG_TLB_SIZE
- gd->arch.tlb_size = CONFIG_TLB_SIZE;
+#else gd->arch.tlb_size = PGTABLE_SIZE; +#endif addr -= gd->arch.tlb_size;
/* round down to next 64 kB limit */
There is no code in current mainline which defines CONFIG_TLB_SIZE; that makes the patch a dead code addition.
Besides, what's the point of this as opposed to, e.g., just defining the right PGTABLE_SIZE, or renaming PGTABLE_SIZE as CONFIG_TLB_SIZE?
Amicalement,