diff options
| author | York Sun <york.sun@nxp.com> | 2017-05-15 08:51:59 -0700 |
|---|---|---|
| committer | York Sun <york.sun@nxp.com> | 2017-06-01 19:57:24 -0700 |
| commit | 399e2bb60cb76131c49446baf350697142af7c07 (patch) | |
| tree | 5e13e5deea8e8d73302f4731e1ea1d6d42ef3236 /board/freescale/common | |
| parent | 1f55a93802ab1522e4f479d1d2730158e26b3567 (diff) | |
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 <york.sun@nxp.com>
Diffstat (limited to 'board/freescale/common')
| -rw-r--r-- | board/freescale/common/ns_access.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/board/freescale/common/ns_access.c b/board/freescale/common/ns_access.c index 81c921122e..1c2287d22a 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) |