armv8: layerscape: Enable EHCI access for LS1012A
Program Central Security Unit (CSU) to grant access to USB 2.0
controller.
Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
[YS: rewrite commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/soc.c b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
index 2f306c5..3f15cb0 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/soc.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/soc.c
@@ -11,6 +11,7 @@
#include <asm/io.h>
#include <asm/global_data.h>
#include <asm/arch-fsl-layerscape/config.h>
+#include <asm/arch-fsl-layerscape/ns_access.h>
#include <asm/arch-fsl-layerscape/fsl_icid.h>
#ifdef CONFIG_LAYERSCAPE_NS_ACCESS
#include <fsl_csu.h>
@@ -615,6 +616,14 @@
CCI400_DVM_MESSAGE_REQ_EN | CCI400_SNOOP_REQ_EN);
}
+ /*
+ * Program Central Security Unit (CSU) to grant access
+ * permission for USB 2.0 controller
+ */
+#if defined(CONFIG_ARCH_LS1012A) && defined(CONFIG_USB_EHCI_FSL)
+ if (current_el() == 3)
+ set_devices_ns_access(CSU_CSLX_USB_2, CSU_ALL_RW);
+#endif
/* Erratum */
erratum_a008850_early(); /* part 1 of 2 */
erratum_a009929();