Hi Michal,
On Fri, Dec 16, 2016 at 5:38 AM, Michal Simek michal.simek@xilinx.com wrote:
spi-max-frequency for spi bus depends on devices which are connected to it. Remove this parameter from dtsi file.
Signed-off-by: Michal Simek michal.simek@xilinx.com
arch/arm/dts/zynq-7000.dtsi | 2 -- 1 file changed, 2 deletions(-)
diff --git a/arch/arm/dts/zynq-7000.dtsi b/arch/arm/dts/zynq-7000.dtsi index 668f54ec219d..fa9ee276cb59 100644 --- a/arch/arm/dts/zynq-7000.dtsi +++ b/arch/arm/dts/zynq-7000.dtsi @@ -177,7 +177,6 @@ interrupts = <0 26 4>; clocks = <&clkc 25>, <&clkc 34>; clock-names = "ref_clk", "pclk";
spi-max-frequency = <166666700>; #address-cells = <1>; #size-cells = <0>; };@@ -190,7 +189,6 @@ interrupts = <0 49 4>; clocks = <&clkc 26>, <&clkc 35>; clock-names = "ref_clk", "pclk";
spi-max-frequency = <166666700>; #address-cells = <1>; #size-cells = <0>; };-- 1.9.1
While I agree with the patch, doesn't the drivers/spi/zynq_spi.c in u-boot (wrongly) use this to determine it's peripheral clock speed?
<snip> plat->frequency = fdtdec_get_int(blob, node, "spi-max-frequency", 250000000); </snip>
and later in zynq_spi_set_speed() to calculate divisors?
Cheers,
Moritz