diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-01-09 14:35:48 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-01-26 16:03:04 +0100 |
| commit | a6a4bfeae9167190b80e0e32e187d1b949845b47 (patch) | |
| tree | 09e8733b925dd3cb190e4e4f55a39f3c8549d289 | |
| parent | 9a5db2f7f175597b04cbd7e017e75602fc275f6d (diff) | |
arm64: dts: renesas: eagle: Add SCIF_CLK support
Describe the external SCIF clock crystal, which can be used as a clock
source for the (High Speed) Serial Communication Interfaces with FIFO.
This improves serial console accuracy from 115200-257 bps to
115200+0 bps.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/7dddaa362945118deab534ccfddfc0870abe8526.1673271243.git.geert+renesas@glider.be
| -rw-r--r-- | arch/arm64/boot/dts/renesas/r8a77970-eagle.dts | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts index 004a5eacd460..405404c0843d 100644 --- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts +++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts @@ -287,6 +287,9 @@ }; &pfc { + pinctrl-0 = <&scif_clk_pins>; + pinctrl-names = "default"; + avb_pins: avb0 { groups = "avb0_mdio", "avb0_rgmii", "avb0_txcrefclk"; function = "avb0"; @@ -316,6 +319,11 @@ groups = "scif0_data"; function = "scif0"; }; + + scif_clk_pins: scif_clk { + groups = "scif_clk_b"; + function = "scif_clk"; + }; }; &rpc { @@ -391,3 +399,7 @@ status = "okay"; }; + +&scif_clk { + clock-frequency = <14745600>; +}; |