diff options
Diffstat (limited to 'board/xilinx/zynqmp')
| -rw-r--r-- | board/xilinx/zynqmp/zynqmp.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c index ba4dfbb..b0acaa5 100644 --- a/board/xilinx/zynqmp/zynqmp.c +++ b/board/xilinx/zynqmp/zynqmp.c @@ -86,6 +86,17 @@ static int chip_id(void) smc_call(®s); + /* + * SMC returns: + * regs[0][31:0] = status of the operation + * regs[0][63:32] = CSU.IDCODE register + * regs[1][31:0] = CSU.version register + */ + regs.regs[0] = upper_32_bits(regs.regs[0]); + regs.regs[0] &= ZYNQMP_CSU_IDCODE_DEVICE_CODE_MASK | + ZYNQMP_CSU_IDCODE_SVD_MASK; + regs.regs[0] >>= ZYNQMP_CSU_IDCODE_SVD_SHIFT; + return regs.regs[0]; } |