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imx8qm: fix cpu frequency reporting

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CPU frequency reporting failed with the following error message being
printed:

sc_pm_get_clock_rate: resource:507 clk:2: res:3
Could not read CPU frequency: -22
CPU:   NXP i.MX8QM RevB A53 at 0 MHz

Fix this by differentiating between the A35 as found on the i.MX 8QXP
and the A53 as found on the i.MX 8QM SoCs.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Max Krummenacher <max.krummenacher@toradex.com>
This commit is contained in:
Marcel Ziswiler 2019-05-31 19:00:18 +03:00 committed by Stefano Babic
parent 16f8b84917
commit 1da39d3ce8
1 changed files with 3 additions and 1 deletions
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4
arch/arm/mach-imx/imx8/cpu.c
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@ -623,8 +623,10 @@ static ulong imx8_get_cpu_rate(void)
{
ulong rate;
int ret;
int type = is_cortex_a35() ? SC_R_A35 : is_cortex_a53() ?
SC_R_A53 : SC_R_A72;
ret = sc_pm_get_clock_rate(-1, SC_R_A35, SC_PM_CLK_CPU,
ret = sc_pm_get_clock_rate(-1, type, SC_PM_CLK_CPU,
(sc_pm_clock_rate_t *)&rate);
if (ret) {
printf("Could not read CPU frequency: %d\n", ret);