ppc4xx: Fix msg "initialization as root-complex failed" upon PCIe scan

This message is printed upon PCIe bus scan, not only upon error, but also
if no PCIe device is detected at all. Since this is not an error, let's
remove this message in this case. We already have the message
"link is not up." if there is no PCIe device present.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Wolfgang Denk <wd@denx.de>

board/amcc/canyonlands/canyonlands.c

@@ -28,6 +28,7 @@
 #include <asm/mmu.h>
 #include <asm/4xx_pcie.h>
 #include <asm/gpio.h>
+#include <asm/errno.h>
 
 extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
 
@@ -414,6 +415,8 @@ void pcie_setup_hoses(int busno)
 			ret = ppc4xx_init_pcie_endport(i);
 		else
 			ret = ppc4xx_init_pcie_rootport(i);
+		if (ret == -ENODEV)
+			continue;
 		if (ret) {
 			printf("PCIE%d: initialization as %s failed\n", i,
 			       is_end_point(i) ? "endpoint" : "root-complex");

board/amcc/katmai/katmai.c

@@ -32,6 +32,7 @@
 #include <asm/io.h>
 #include <asm/gpio.h>
 #include <asm/4xx_pcie.h>
+#include <asm/errno.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -391,6 +392,8 @@ void pcie_setup_hoses(int busno)
 			ret = ppc4xx_init_pcie_endport(i);
 		else
 			ret = ppc4xx_init_pcie_rootport(i);
+		if (ret == -ENODEV)
+			continue;
 		if (ret) {
 			printf("PCIE%d: initialization as %s failed\n", i,
 			       is_end_point(i) ? "endpoint" : "root-complex");

board/amcc/kilauea/kilauea.c

@@ -28,6 +28,7 @@
 #include <fdt_support.h>
 #include <asm/processor.h>
 #include <asm/io.h>
+#include <asm/errno.h>
 
 #if defined(CONFIG_PCI)
 #include <pci.h>
@@ -317,6 +318,8 @@ void pcie_setup_hoses(int busno)
 			ret = ppc4xx_init_pcie_endport(i);
 		else
 			ret = ppc4xx_init_pcie_rootport(i);
+		if (ret == -ENODEV)
+			continue;
 		if (ret) {
 			printf("PCIE%d: initialization as %s failed\n", i,
 			       is_end_point(i) ? "endpoint" : "root-complex");

board/amcc/makalu/makalu.c

@@ -29,6 +29,7 @@
 #include <asm/gpio.h>
 #include <asm/io.h>
 #include <fdt_support.h>
+#include <asm/errno.h>
 
 #if defined(CONFIG_PCI)
 #include <pci.h>
@@ -273,6 +274,8 @@ void pcie_setup_hoses(int busno)
 			ret = ppc4xx_init_pcie_endport(i);
 		else
 			ret = ppc4xx_init_pcie_rootport(i);
+		if (ret == -ENODEV)
+			continue;
 		if (ret) {
 			printf("PCIE%d: initialization as %s failed\n", i,
 			       is_end_point(i) ? "endpoint" : "root-complex");

board/amcc/yucca/yucca.c

@@ -32,6 +32,7 @@
 #include <asm/processor.h>
 #include <asm/io.h>
 #include <asm/4xx_pcie.h>
+#include <asm/errno.h>
 
 #include "yucca.h"
 
@@ -830,6 +831,8 @@ void pcie_setup_hoses(int busno)
 			yucca_setup_pcie_fpga_rootpoint(i);
 			ret = ppc4xx_init_pcie_rootport(i);
 		}
+		if (ret == -ENODEV)
+			continue;
 		if (ret) {
 			printf("PCIE%d: initialization as %s failed\n", i,
 			       is_end_point(i) ? "endpoint" : "root-complex");

cpu/ppc4xx/4xx_pcie.c

@@ -30,6 +30,7 @@
 #include <ppc4xx.h>
 #include <asm/processor.h>
 #include <asm-ppc/io.h>
+#include <asm/errno.h>
 
 #if (defined(CONFIG_440SPE) || defined(CONFIG_405EX) ||	\
     defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \
@@ -874,7 +875,7 @@ int ppc4xx_init_pcie_port(int port, int rootport)
 	val = SDR_READ(SDRN_PESDR_LOOP(port));
 	if (!(val & 0x00001000)) {
 		printf("PCIE%d: link is not up.\n", port);
-		return -1;
+		return -ENODEV;
 	}
 
 	/*