diff options
| -rw-r--r-- | plat/xilinx/zynqmp/aarch64/zynqmp_common.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/plat/xilinx/zynqmp/aarch64/zynqmp_common.c b/plat/xilinx/zynqmp/aarch64/zynqmp_common.c index b144c84b..c3612706 100644 --- a/plat/xilinx/zynqmp/aarch64/zynqmp_common.c +++ b/plat/xilinx/zynqmp/aarch64/zynqmp_common.c @@ -205,12 +205,21 @@ static char *zynqmp_get_silicon_idcode_name(void) { uint32_t id, ver, chipid[2]; size_t i, j, len; - enum pm_ret_status ret; const char *name = "EG/EV"; - ret = pm_get_chipid(chipid); - if (ret) +#ifdef IMAGE_BL32 + /* + * For BL32, get the chip id info directly by reading corresponding + * registers instead of making pm call. This has limitation + * that these registers should be configured to have access + * from APU which is default case. + */ + chipid[0] = mmio_read_32(ZYNQMP_CSU_BASEADDR + ZYNQMP_CSU_IDCODE_OFFSET); + chipid[1] = mmio_read_32(EFUSE_BASEADDR + EFUSE_IPDISABLE_OFFSET); +#else + if (pm_get_chipid(chipid) != PM_RET_SUCCESS) return "UNKN"; +#endif id = chipid[0] & (ZYNQMP_CSU_IDCODE_DEVICE_CODE_MASK | ZYNQMP_CSU_IDCODE_SVD_MASK); |