From 96034263399e4e6ebfa8abfa80e577fa7c12c474 Mon Sep 17 00:00:00 2001 From: Ryan Grachek Date: Fri, 11 Jan 2019 08:33:00 -0600 Subject: [PATCH] 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 --- plat/hisilicon/hikey960/hikey960_bl31_setup.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/plat/hisilicon/hikey960/hikey960_bl31_setup.c b/plat/hisilicon/hikey960/hikey960_bl31_setup.c index 67b06f498..c3fcc3804 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)); } }