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Forum Post: RE: Problems using the Cortex M3 Firmware with Linux 3.12.10 on custom board.

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Yes it does.

We actually think we are close to figuring it out. We are wondering how the values in:

struct cpuidle_state {
    char        name[CPUIDLE_NAME_LEN];
    char        desc[CPUIDLE_DESC_LEN];

    unsigned int    flags;
    unsigned int    exit_latency; /* in US */
    int        power_usage; /* in mW */
    unsigned int    target_residency; /* in US */
    bool        disabled; /* disabled on all CPUs */

    int (*enter)    (struct cpuidle_device *dev,
            struct cpuidle_driver *drv,
            int index);

    int (*enter_dead) (struct cpuidle_device *dev, int index);
};

for any ram. This code is declared in the cpuidle.h file in the kernel. We think we need to set these values for LPDDR.


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