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Message-ID: <1478603076-23459-1-git-send-email-noamca@mellanox.com>
Date: Tue, 8 Nov 2016 13:04:36 +0200
From: Noam Camus <noamca@...lanox.com>
To: <vgupta@...opsys.com>
CC: <linux-snps-arc@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>, Noam Camus <noamca@...lanox.com>
Subject: [PATCH] ARC: [plat-eznps] set default baud for early console
From: Noam Camus <noamca@...lanox.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@...lanox.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
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