Re: [PATCH v2] arm64: dts: ti: k3-am654-main: Update otap-del-sel values

From: Tero Kristo
Date: Fri May 15 2020 - 06:14:55 EST


On 07/05/2020 21:15, Faiz Abbas wrote:
According to the latest AM65x Data Manual[1], a different output tap
delay value is optimum for a given speed mode. Update these values.

[1] http://www.ti.com/lit/gpn/am6526

Signed-off-by: Faiz Abbas <faiz_abbas@xxxxxx>
---
v2: Rebased to the latest mainline kernel

arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 11887c72f23a..6cd9701e4ead 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -244,7 +244,17 @@
interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>;
mmc-ddr-1_8v;
mmc-hs200-1_8v;
- ti,otap-del-sel = <0x2>;
+ ti,otap-del-sel-legacy = <0x0>;
+ ti,otap-del-sel-mmc-hs = <0x0>;
+ ti,otap-del-sel-sd-hs = <0x0>;
+ ti,otap-del-sel-sdr12 = <0x0>;
+ ti,otap-del-sel-sdr25 = <0x0>;
+ ti,otap-del-sel-sdr50 = <0x8>;
+ ti,otap-del-sel-sdr104 = <0x5>;

Isn't this wrong? Doc claims the value for sdr104 should be 0x7?

-Tero

+ ti,otap-del-sel-ddr50 = <0x5>;
+ ti,otap-del-sel-ddr52 = <0x5>;
+ ti,otap-del-sel-hs200 = <0x5>;
+ ti,otap-del-sel-hs400 = <0x0>;
ti,trm-icp = <0x8>;
dma-coherent;
};


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