[U-Boot] [PATCH v2 1/3] arm64: mvebu: Trigger PCI devices scan at early init stage

[kostap at marvell.com]

From: Konstantin Porotchkin <kostap at marvell.com>

Add PCIe initialization at early init stage.
This operation has a side effect of detecting all PCIe
plug-in cards, so the operator is not obligated to issue
"pci enum" command though CLI for this purpose.

Signed-off-by: Konstantin Porotchkin <kostap at marvell.com>
Cc: Stefan Roese <sr at denx.de>
Cc: Igal Liberman <igall at marvell.com>
Cc: Nadav Haklai <nadavh at marvell.com>
---
Changes from v1:
- Remove changes to SATA devices scan

 arch/arm/mach-mvebu/arm64-common.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/mach-mvebu/arm64-common.c b/arch/arm/mach-mvebu/arm64-common.c
index 8f02655..45e6d35 100644
--- a/arch/arm/mach-mvebu/arm64-common.c
+++ b/arch/arm/mach-mvebu/arm64-common.c
@@ -8,6 +8,7 @@
 #include <dm.h>
 #include <fdtdec.h>
 #include <libfdt.h>
+#include <pci.h>
 #include <asm/io.h>
 #include <asm/system.h>
 #include <asm/arch/cpu.h>
@@ -145,5 +146,10 @@ int arch_early_init_r(void)
 	/* Cause the SATA device to do its early init */
 	uclass_first_device(UCLASS_AHCI, &dev);
 
+#ifdef CONFIG_DM_PCI
+	/* Trigger PCIe devices detection */
+	pci_init();
+#endif
+
 	return 0;
 }
-- 
2.7.4