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
---
Changes in v3: None Changes in v2: None
arch/arm/mach-imx/imx8/cpu.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c index 53f9a8735a..aa78444d8f 100644 --- a/arch/arm/mach-imx/imx8/cpu.c +++ b/arch/arm/mach-imx/imx8/cpu.c @@ -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);