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ARC: [plat-eznps] set default baud for early console

Message ID 1478603076-23459-1-git-send-email-noamca@mellanox.com
State New
Headers show

Commit Message

Noam Camus Nov. 8, 2016, 11:04 a.m. UTC 
From: Noam Camus <noamca@mellanox.com>

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@mellanox.com>
---
 arch/arc/kernel/devtree.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
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Patch

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 */
 }