diff options
| author | Peng Fan <peng.fan@nxp.com> | 2021-11-12 14:26:02 +0800 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2021-11-23 17:25:52 +0800 |
| commit | cb551b5e3bab54265f374a394e239f5e492a5742 (patch) | |
| tree | 000a966a2126f780ccf551c966ab36dab522ebb1 /arch/arm64/boot/dts/freescale/imx8mn.dtsi | |
| parent | c190510714df168b9d6387bc29844acbe9a39521 (diff) | |
arm64: dts: imx8m: add cache info
i.MX8M Family use A53 Cores and has 32KB ICache with 32KB DCache.
- Icache is 2-way set associative
- Dcache is 4-way set associative
- L2cache is 16-way set associative
- Line size are 64bytes
Except i.MX8MQ has 1MB L2 Cache, others has 512KB L2 Cache.
So add the cache info in device tree and let use could see that
from /sys/devices/system/cpu/cpu[x]/cache/
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/imx8mn.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mn.dtsi | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi index da6c942fb7f9..ba23b416b5e6 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi @@ -63,6 +63,12 @@ clock-latency = <61036>; clocks = <&clk IMX8MN_CLK_ARM>; enable-method = "psci"; + i-cache-size = <0x8000>; + i-cache-line-size = <64>; + i-cache-sets = <256>; + d-cache-size = <0x8000>; + d-cache-line-size = <64>; + d-cache-sets = <128>; next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; nvmem-cells = <&cpu_speed_grade>; @@ -78,6 +84,12 @@ clock-latency = <61036>; clocks = <&clk IMX8MN_CLK_ARM>; enable-method = "psci"; + i-cache-size = <0x8000>; + i-cache-line-size = <64>; + i-cache-sets = <256>; + d-cache-size = <0x8000>; + d-cache-line-size = <64>; + d-cache-sets = <128>; next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; cpu-idle-states = <&cpu_pd_wait>; @@ -91,6 +103,12 @@ clock-latency = <61036>; clocks = <&clk IMX8MN_CLK_ARM>; enable-method = "psci"; + i-cache-size = <0x8000>; + i-cache-line-size = <64>; + i-cache-sets = <256>; + d-cache-size = <0x8000>; + d-cache-line-size = <64>; + d-cache-sets = <128>; next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; cpu-idle-states = <&cpu_pd_wait>; @@ -104,6 +122,12 @@ clock-latency = <61036>; clocks = <&clk IMX8MN_CLK_ARM>; enable-method = "psci"; + i-cache-size = <0x8000>; + i-cache-line-size = <64>; + i-cache-sets = <256>; + d-cache-size = <0x8000>; + d-cache-line-size = <64>; + d-cache-sets = <128>; next-level-cache = <&A53_L2>; operating-points-v2 = <&a53_opp_table>; cpu-idle-states = <&cpu_pd_wait>; @@ -112,6 +136,10 @@ A53_L2: l2-cache0 { compatible = "cache"; + cache-level = <2>; + cache-size = <0x80000>; + cache-line-size = <64>; + cache-sets = <512>; }; }; |