From a0643e227ad98fbc34b1950ddc6d1d2a0f5aadad Mon Sep 17 00:00:00 2001 From: Przemyslaw Marczak <p.marczak@samsung.com> Date: Tue, 17 Feb 2015 14:50:25 +0100 Subject: [PATCH] board: samsung: reserve memory for the secure firmware Since more than one board requires memory reservation for the secure firmware, the reservation code can be made in a common code. Now, to reserve some part of the the last bank, board config should define: - CONFIG_TZSW_RESERVED_DRAM - len in bytes - CONFIG_NR_DRAM_BANKS - number of memory banks Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Cc: Akshay Saraswat <akshay.s@samsung.com> Cc: Hyungwon Hwang <human.hwang@samsung.com> Cc: Minkyu Kang <mk7.kang@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> --- board/samsung/common/board.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/board/samsung/common/board.c b/board/samsung/common/board.c index 97950fa192..2e17da8a7a 100644 --- a/board/samsung/common/board.c +++ b/board/samsung/common/board.c @@ -82,7 +82,13 @@ int board_init(void) } boot_temp_check(); #endif +#ifdef CONFIG_TZSW_RESERVED_DRAM_SIZE + /* The last few MB of memory can be reserved for secure firmware */ + ulong size = CONFIG_TZSW_RESERVED_DRAM_SIZE; + gd->ram_size -= size; + gd->bd->bi_dram[CONFIG_NR_DRAM_BANKS - 1].size -= size; +#endif return exynos_init(); }