diff mbox series

[v2,1/6] arm64: tegra: Configure QSPI clocks and add DMA

Message ID 20250212144651.2433086-2-va@nvidia.com (mailing list archive)
State New
Headers show
Series Configure Clocks, Add Native Dma support. | expand

Commit Message

Vishwaroop A Feb. 12, 2025, 2:46 p.m. UTC 
Set QSPI0_2X_PM to 199.99 MHz and QSPI0_PM to 99.99 MHz using
PLLC as the parent clock. These frequencies allow Quad IO DT
reads up to 99.99 MHz, which is the fastest that can be
achieved considering various PLL and clock divider constraints.

Populate the DMA and IOMMU properties for the Tegra234 QSPI devices to
enable DMA support.

Signed-off-by: Vishwaroop A <va@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra234.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index 2601b43b2d8c..0ac2d3aba930 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -2948,6 +2948,13 @@ 
 				 <&bpmp TEGRA234_CLK_QSPI0_PM>;
 			clock-names = "qspi", "qspi_out";
 			resets = <&bpmp TEGRA234_RESET_QSPI0>;
+			assigned-clocks = <&bpmp TEGRA234_CLK_QSPI0_2X_PM>,
+					  <&bpmp TEGRA234_CLK_QSPI0_PM>;
+			assigned-clock-rates = <199999999 99999999>;
+			assigned-clock-parents = <&bpmp TEGRA234_CLK_PLLC>;
+			dma-names = "rx", "tx";
+			dma-coherent;
+			iommus = <&smmu_niso1 TEGRA234_SID_QSPI0>;
 			status = "disabled";
 		};
 
@@ -3031,6 +3038,13 @@ 
 				 <&bpmp TEGRA234_CLK_QSPI1_PM>;
 			clock-names = "qspi", "qspi_out";
 			resets = <&bpmp TEGRA234_RESET_QSPI1>;
+			assigned-clocks = <&bpmp TEGRA234_CLK_QSPI1_2X_PM>,
+					  <&bpmp TEGRA234_CLK_QSPI1_PM>;
+			assigned-clock-rates = <199999999 99999999>;
+			assigned-clock-parents = <&bpmp TEGRA234_CLK_PLLC>;
+			dma-names = "rx", "tx";
+			dma-coherent;
+			iommus = <&smmu_niso1 TEGRA234_SID_QSPI1>;
 			status = "disabled";
 		};