From 399e2bb60cb76131c49446baf350697142af7c07 Mon Sep 17 00:00:00 2001 From: York Sun Date: Mon, 15 May 2017 08:51:59 -0700 Subject: armv8: layerscape: Make U-Boot EL2 safe When U-Boot boots from EL2, skip some lowlevel init code requiring EL3, including CCI-400/CCN-504, trust zone, GIC, etc. These initialization tasks are carried out before U-Boot runs. This applies to the RAM version image used for SPL boot if PPA is loaded first. Signed-off-by: York Sun --- board/freescale/common/ns_access.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'board/freescale') diff --git a/board/freescale/common/ns_access.c b/board/freescale/common/ns_access.c index 81c9211..1c2287d 100644 --- a/board/freescale/common/ns_access.c +++ b/board/freescale/common/ns_access.c @@ -39,7 +39,10 @@ static void enable_devices_ns_access(struct csu_ns_dev *ns_dev, uint32_t num) void enable_layerscape_ns_access(void) { - enable_devices_ns_access(ns_dev, ARRAY_SIZE(ns_dev)); +#ifdef CONFIG_ARM64 + if (current_el() == 3) +#endif + enable_devices_ns_access(ns_dev, ARRAY_SIZE(ns_dev)); } void set_pcie_ns_access(int pcie, u16 val) -- cgit v1.1