On 1/25/24 09:07, Michal Simek wrote:
From: Saeed Nowshadi saeed.nowshadi@amd.com
Without 'silabs,skip-recall' property, the driver on System Controller re-calibrates the output clock frequency at probe() time based on the NVRAM setting. This re-calibration causes a glitch on the output clock. At power-on, Versal is also booting and expecting a glitch-free clock for its correct operation. System Controller should skip the re-calibration step to prevent any clock instability for Versal.
Signed-off-by: Saeed Nowshadi saeed.nowshadi@amd.com Signed-off-by: Michal Simek michal.simek@amd.com
arch/arm/dts/zynqmp-e-a2197-00-revA.dts | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/arch/arm/dts/zynqmp-e-a2197-00-revA.dts b/arch/arm/dts/zynqmp-e-a2197-00-revA.dts index f1b0a4aa65dd..0b97fa3f28ac 100644 --- a/arch/arm/dts/zynqmp-e-a2197-00-revA.dts +++ b/arch/arm/dts/zynqmp-e-a2197-00-revA.dts @@ -449,6 +449,7 @@ factory-fout = <156250000>; clock-frequency = <156250000>; clock-output-names = "si570_zsfp_clk";
silabs,skip-recall; };@@ -463,6 +464,7 @@ factory-fout = <100000000>; clock-frequency = <100000000>; clock-output-names = "si570_user1";
silabs,skip-recall; };};
@@ -560,6 +562,7 @@ factory-fout = <200000000>; clock-frequency = <200000000>; clock-output-names = "si570_lpddr4_clk2";
silabs,skip-recall; };@@ -574,6 +577,7 @@ factory-fout = <200000000>; clock-frequency = <200000000>; clock-output-names = "si570_lpddr4_clk1";
silabs,skip-recall; };@@ -588,6 +592,7 @@ factory-fout = <156250000>; clock-frequency = <156250000>; clock-output-names = "si570_hsdp_clk";
silabs,skip-recall; };
Applied. M