From: Noam Camus <noamca@xxxxxxxxxxxx> For CONFIG_SERIAL_EARLYCON we need 800MHz for NPS SoC The early console driver uses BASE_BAUD (and not using dtb) and default of 50MHz is good for NPS SoC. Signed-off-by: Noam Camus <noamca at mellanox.com> --- arch/arc/kernel/devtree.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c index f1e07c2..3b67f53 100644 --- a/arch/arc/kernel/devtree.c +++ b/arch/arc/kernel/devtree.c @@ -31,6 +31,8 @@ static void __init arc_set_early_base_baud(unsigned long dt_root) arc_base_baud = 166666666; /* Fixed 166.6MHz clk (TB10x) */ else if (of_flat_dt_is_compatible(dt_root, "snps,arc-sdp")) arc_base_baud = 33333333; /* Fixed 33MHz clk (AXS10x) */ + else if (of_flat_dt_is_compatible(dt_root, "ezchip,arc-nps")) + arc_base_baud = 800000000; /* Fixed 800MHz clk (NPS) */ else arc_base_baud = 50000000; /* Fixed default 50MHz */ } -- 1.7.1
