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-rw-r--r--arch/arm/mach-k3/common.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm/mach-k3/common.c b/arch/arm/mach-k3/common.c
index e8b7d70e75..8d1529062d 100644
--- a/arch/arm/mach-k3/common.c
+++ b/arch/arm/mach-k3/common.c
@@ -269,3 +269,33 @@ void disable_linefill_optimization(void)
asm("mcr p15, 0, %0, c1, c0, 1" : : "r" (actlr));
}
#endif
+
+void remove_fwl_configs(struct fwl_data *fwl_data, size_t fwl_data_size)
+{
+ struct ti_sci_msg_fwl_region region;
+ struct ti_sci_fwl_ops *fwl_ops;
+ struct ti_sci_handle *ti_sci;
+ size_t i, j;
+
+ ti_sci = get_ti_sci_handle();
+ fwl_ops = &ti_sci->ops.fwl_ops;
+ for (i = 0; i < fwl_data_size; i++) {
+ for (j = 0; j < fwl_data[i].regions; j++) {
+ region.fwl_id = fwl_data[i].fwl_id;
+ region.region = j;
+ region.n_permission_regs = 3;
+
+ fwl_ops->get_fwl_region(ti_sci, &region);
+
+ if (region.control != 0) {
+ pr_debug("Attempting to disable firewall %5d (%25s)\n",
+ region.fwl_id, fwl_data[i].name);
+ region.control = 0;
+
+ if (fwl_ops->set_fwl_region(ti_sci, &region))
+ pr_err("Could not disable firewall %5d (%25s)\n",
+ region.fwl_id, fwl_data[i].name);
+ }
+ }
+ }
+}