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Varun Wadekar authored
This patch adds a new SMC function ID to read the refclk and coreclk clock counter values from the Activity Monitor. The non-secure world requires this information to calculate the CPU's frequency. Formula: "freq = (delta_coreclk / delta_refclk) * refclk_freq" The following CPU registers have to be set by the non-secure driver before issuing the SMC: X1 = MPIDR of the target core X2 = MIDR of the target core Change-Id: I296d835def1f5788c17640c0c456b8f8f0e90824 Signed-off-by:Varun Wadekar <vwadekar@nvidia.com>
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