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imx9: clock: config arm alt root to 500mhz

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Config the A55 alt root clock to 500MHz(LD mode frequency)
by default. Normally, this clock root is only used as an
intermediate clock soure for A55 core/dsu when change the
ARM PLL frequency.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan
2023-04-28 12:08:31 +08:00
committed by Stefano Babic
parent 3c5dcec791
commit 4a5c5d56f5
1 changed files with 6 additions and 0 deletions
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6
arch/arm/mach-imx/imx9/clock.c
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@@ -727,6 +727,12 @@ struct imx_clk_setting imx_clk_settings[] = {
};
#else
struct imx_clk_setting imx_clk_settings[] = {
/*
* Set A55 clk to 500M. This clock root is normally used as intermediate
* clock source for A55 core/DSU when doing ARM PLL reconfig. set it to
* 500MHz(LD mode frequency) should be ok.
*/
{ARM_A55_CLK_ROOT, SYS_PLL_PFD0, 2},
/* Set A55 periphal to 333M */
{ARM_A55_PERIPH_CLK_ROOT, SYS_PLL_PFD0, 3},
/* Set A55 mtr bus to 133M */