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-rw-r--r--src/soc/amd/picasso/psp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/soc/amd/picasso/psp.c b/src/soc/amd/picasso/psp.c
index ddefd22bd0..6acb5888ce 100644
--- a/src/soc/amd/picasso/psp.c
+++ b/src/soc/amd/picasso/psp.c
@@ -14,7 +14,7 @@ void *soc_get_mbox_address(void)
uintptr_t psp_mmio;
psp_mmio = rdmsr(MSR_PSP_ADDR).lo;
- if (psp_mmio == 0xffffffff) {
+ if (!psp_mmio) {
printk(BIOS_WARNING, "PSP: MSR_PSP_ADDR uninitialized\n");
return 0;
}