[U-Boot] [Patch v2] fsl-layerscape: fdt: add IFC fixup if no IFC is avaliable in U-Boot

[Gong Qianyu]

IFC is considered as a required component in Layerscape platforms' Linux.
But if IFC is not enabled in U-Boot on some boards, accessing IFC memory
space would cause kernel call trace. So disable IFC node in such cases.

Signed-off-by: Gong Qianyu <Qianyu.Gong at nxp.com>
---
V2:
 - Revised the title and message.
 - Used #ifndef CONFIG_FSL_IFC rather than #ifdef CONFIG_FSL_QSPI.

 arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index 1e875c4..96dab56 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
@@ -98,4 +98,9 @@ void ft_cpu_setup(void *blob, bd_t *bd)
 #ifdef CONFIG_SYS_DPAA_FMAN
 	fdt_fixup_fman_firmware(blob);
 #endif
+
+#ifndef CONFIG_FSL_IFC
+	do_fixup_by_compat(blob, "fsl,ifc",
+			   "status", "disabled", 8 + 1, 1);
+#endif
 }
-- 
2.1.0.27.g96db324