arm64: zynqmp: Use zynqmp_mmio_read/write functions
Changed the return type of reset_reason() to int from u32, because zynqmp_mmio_read/write() returns signed value on error. Replaced readl and writel functions with zynqmp_mmio_read & zynqmp_mmio_write functions to access RESET_REASON(CRL_APB) registers. Signed-off-by:T Karthik Reddy <t.karthik.reddy@xilinx.com> Signed-off-by:
Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Signed-off-by:
Michal Simek <michal.simek@xilinx.com>
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