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platform: imx8: Fix clock frequency for i.MX8X 

Looking at the timestamps from sof-logger it looks like
the DSP core frequency on i.MX8X is wrong.

Documentation confirms this. It should be 640Mhz.

Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
This commit is contained in:
Daniel Baluta 2021-03-16 09:34:35 +02:00 committed by Liam Girdwood
parent 25ed49f461
commit f305790e51
2 changed files with 9 additions and 0 deletions
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5
src/platform/imx8/include/platform/lib/clk.h
View File

@ -18,8 +18,13 @@ struct sof;
#define CPU_DEFAULT_IDX 0
#ifdef CONFIG_IMX8
#define CLK_DEFAULT_CPU_HZ 666000000
#define CLK_MAX_CPU_HZ 666000000
#else /* CONFIG_IMX8X */
#define CLK_DEFAULT_CPU_HZ 640000000
#define CLK_MAX_CPU_HZ 640000000
#endif
#define NUM_CLOCKS 1

4
src/platform/imx8/lib/clk.c
View File

@ -14,7 +14,11 @@
#include <sof/spinlock.h>
const struct freq_table platform_cpu_freq[] = {
#ifdef CONFIG_IMX8
{ 666000000, 666000 },
#else /* CONFIG_IMX8X */
{ 640000000, 640000 },
#endif
};
STATIC_ASSERT(NUM_CPU_FREQ == ARRAY_SIZE(platform_cpu_freq),