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 --- 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 da2245f..a2123cd 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(); }