[U-Boot] [PATCH v2 4/6] imx8qm: fix cpu frequency reporting

[Marcel Ziswiler]

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 at toradex.com>
Reviewed-by: Max Krummenacher <max.krummenacher at toradex.com>

---

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 12716e7e9e..12596c6387 100644
--- a/arch/arm/mach-imx/imx8/cpu.c
+++ b/arch/arm/mach-imx/imx8/cpu.c
@@ -654,8 +654,10 @@ 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);
-- 
2.20.1