aboutsummaryrefslogtreecommitdiff
path: root/plat/hisilicon
diff options
context:
space:
mode:
authorRyan Grachek <ryan@edited.us>2019-01-11 08:33:00 -0600
committerRyan Grachek <ryan@edited.us>2019-01-31 09:03:11 -0600
commit96034263399e4e6ebfa8abfa80e577fa7c12c474 (patch)
tree03d6864f071c685b6b91cc044e41780f14ca515a /plat/hisilicon
parentc3faf745c42ec97fba7745589961039bd0951c40 (diff)
downloadtrusted-firmware-a-96034263399e4e6ebfa8abfa80e577fa7c12c474.tar.gz
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>
Diffstat (limited to 'plat/hisilicon')
-rw-r--r--plat/hisilicon/hikey960/hikey960_bl31_setup.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/plat/hisilicon/hikey960/hikey960_bl31_setup.c b/plat/hisilicon/hikey960/hikey960_bl31_setup.c
index 67b06f498c..c3fcc38046 100644
--- a/plat/hisilicon/hikey960/hikey960_bl31_setup.c
+++ b/plat/hisilicon/hikey960/hikey960_bl31_setup.c
@@ -154,7 +154,8 @@ static void hikey960_edma_init(void)
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));
}
}