diff options
| author | Peng Fan <peng.fan@nxp.com> | 2020-01-13 16:13:54 +0800 |
|---|---|---|
| committer | Peng Fan <peng.fan@nxp.com> | 2020-01-13 18:40:33 +0800 |
| commit | 414748562d097a8c58781753734cb722fec40c29 (patch) | |
| tree | 86dd656f8a2e40dbac8f3219f9b2e0d8f57b500e /include/dt-bindings | |
| parent | a5a750b51272a225ac27e0760d1dc5287c1532ee (diff) | |
MLK-23228-3 clk: imx: imx8mn: fix a53 cpu clock
A53 CCM clk root only accepts input up to 1GHz, however
the A53 core could run above 1GHz which voliates the CCM limitation.
There is a CORE_SEL slice before A53 core, we need configure the
CORE_SEL slice source from ARM PLL, not A53 CCM clk root.
The A53 CCM clk root should only be used when need to change ARM PLL
frequency.
Add arm_a53_core clk that could source from arm_a53_div and arm_pll_out.
Configure a53 ccm root sources from 800MHz sys pll
Configure a53 core sources from arm_pll_out
Enable arm_pll_out to avoid disable the clock when set a53 core parent.
Fixes: 96d6392b54db ("clk: imx: Add support for i.MX8MN clock driver")
Reviewed-by: Jacky Bai <ping.bai@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'include/dt-bindings')
| -rw-r--r-- | include/dt-bindings/clock/imx8mn-clock.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/dt-bindings/clock/imx8mn-clock.h b/include/dt-bindings/clock/imx8mn-clock.h index 0c7c750fc2c4..9e55f30d9c83 100644 --- a/include/dt-bindings/clock/imx8mn-clock.h +++ b/include/dt-bindings/clock/imx8mn-clock.h @@ -210,7 +210,8 @@ #define IMX8MN_CLK_NAND_USDHC_BUS_RAWNAND_CLK 192 #define IMX8MN_CLK_GPU_CORE_ROOT 193 #define IMX8MN_CLK_GIC 194 +#define IMX8MN_CLK_A53_CORE 195 -#define IMX8MN_CLK_END 195 +#define IMX8MN_CLK_END 196 #endif |