hikey960: EDMAC: leave channel 0 as secure
Channel 0 is used to communicate with LPM3, a coprocessor
for power management. Leave it as secure.
Signed-off-by: Ryan Grachek <ryan@edited.us>
diff --git a/plat/hisilicon/hikey960/hikey960_bl31_setup.c b/plat/hisilicon/hikey960/hikey960_bl31_setup.c
index 67b06f4..c3fcc38 100644
--- a/plat/hisilicon/hikey960/hikey960_bl31_setup.c
+++ b/plat/hisilicon/hikey960/hikey960_bl31_setup.c
@@ -154,7 +154,8 @@
non_secure = EDMAC_SEC_CTRL_INTR_SEC | EDMAC_SEC_CTRL_GLOBAL_SEC;
mmio_write_32(EDMAC_SEC_CTRL, non_secure);
- for (i = 0; i < EDMAC_CHANNEL_NUMS; i++) {
+ /* Channel 0 is reserved for LPM3, keep secure */
+ for (i = 1; i < EDMAC_CHANNEL_NUMS; i++) {
mmio_write_32(EDMAC_AXI_CONF(i), (1 << 6) | (1 << 18));
}
}