ARM: PSCI: initialize stack pointer on secondary CPUs
A proper stack is required to safely use C code in psci_arch_cpu_entry. Fixes: 486daaa6 ("arm: psci: add a weak function psci_arch_cpu_entry") Cc: Patrick Delaunay <patrick.delaunay@st.com> Signed-off-by: NStefan Agner <stefan.agner@toradex.com> Acked-by: NPatrick DELAUNAY <Patrick.delaunay@st.com> Tested-by: NPatrick DELAUNAY <Patrick.delaunay@st.com>
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