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| author | Vineet Gupta <vgupta@synopsys.com> | 2015-02-02 19:23:21 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2015-06-19 18:09:30 +0530 |
| commit | 8d0d56ba24d8d0b04bc9d9a7fbd1796d8966159f (patch) | |
| tree | 87dd235d9d6c2931e543bea091d5e47417a773a4 /Documentation/devicetree/bindings/arc | |
| parent | 556cc1c5f528dcc87733920de17d61b6ebe8999d (diff) | |
| download | lwn-8d0d56ba24d8d0b04bc9d9a7fbd1796d8966159f.tar.gz lwn-8d0d56ba24d8d0b04bc9d9a7fbd1796d8966159f.zip | |
ARC: [axs101] support early 8250 uart
Earlycon calculates UART clock as "BASE_BAUD * 16". In case of ARC
"BASE_BAUD" is calculated dynamically in runtime, basically it is an
alias to arc_early_base_baud(), which in turn just does
"arc_base_baud/16".
8250 UART on AXS/SDP board uses 33.3MHz clock source which is set in
"arc_base_baud" with this change.
Additional compatibility string "snps,arc-sdp" is introduced as well
because there're different flavours of AXS boards but they all share the
same motherboard and so it's possible to re-use the same code for
motherbord even if CPU daughterboard changes.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'Documentation/devicetree/bindings/arc')
| -rw-r--r-- | Documentation/devicetree/bindings/arc/axs101.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/arc/axs101.txt b/Documentation/devicetree/bindings/arc/axs101.txt index 568aa5f74de2..48290d5178b5 100644 --- a/Documentation/devicetree/bindings/arc/axs101.txt +++ b/Documentation/devicetree/bindings/arc/axs101.txt @@ -4,4 +4,4 @@ Synopsys DesignWare ARC Software Development Platforms Device Tree Bindings SDP Main Board with an AXC001 CPU Card hoisting ARC700 core in silicon Required root node properties: - - compatible = "snps,axs101"; + - compatible = "snps,axs101", "snps,arc-sdp"; |