From: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Date: Mon, 4 Sep 2023 03:20:33 +0000 (+0530)
Subject: xilinx: versal-net: Do not setup boot_targets if driver is not enabled
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=c55eb1d542363951347f73c8f03ebcfc63833e11;p=u-boot.git

xilinx: versal-net: Do not setup boot_targets if driver is not enabled

SOC can boot in the device which is not accessible from APU and running
this is detected as error which ends up in stopping boot process.
Boot mode detection and logic around is present to setup priority
on boot devices that SOC boot device is likely also used for booting OS.
Change logic to detect this case with showing message about it but don't
fail in boot process and don't prioritize boot device in this case.

Signed-off-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20230904032035.11926-2-venkatesh.abbarapu@amd.com
---

diff --git a/board/xilinx/versal-net/board.c b/board/xilinx/versal-net/board.c
index f0d2224b33..7ad299f3a2 100644
--- a/board/xilinx/versal-net/board.c
+++ b/board/xilinx/versal-net/board.c
@@ -201,7 +201,7 @@ int board_late_init(void)
 	int bootseq = -1;
 	int bootseq_len = 0;
 	int env_targets_len = 0;
-	const char *mode;
+	const char *mode = NULL;
 	char *new_targets;
 	char *env_targets;
 
@@ -229,8 +229,8 @@ int board_late_init(void)
 		puts("QSPI_MODE_24\n");
 		if (uclass_get_device_by_name(UCLASS_SPI,
 					      "spi@f1030000", &dev)) {
-			puts("Boot from QSPI but without QSPI enabled!\n");
-			return -1;
+			debug("QSPI driver for QSPI device is not present\n");
+			break;
 		}
 		mode = "xspi";
 		bootseq = dev_seq(dev);
@@ -239,8 +239,8 @@ int board_late_init(void)
 		puts("QSPI_MODE_32\n");
 		if (uclass_get_device_by_name(UCLASS_SPI,
 					      "spi@f1030000", &dev)) {
-			puts("Boot from QSPI but without QSPI enabled!\n");
-			return -1;
+			debug("QSPI driver for QSPI device is not present\n");
+			break;
 		}
 		mode = "xspi";
 		bootseq = dev_seq(dev);
@@ -249,8 +249,8 @@ int board_late_init(void)
 		puts("OSPI_MODE\n");
 		if (uclass_get_device_by_name(UCLASS_SPI,
 					      "spi@f1010000", &dev)) {
-			puts("Boot from OSPI but without OSPI enabled!\n");
-			return -1;
+			debug("OSPI driver for OSPI device is not present\n");
+			break;
 		}
 		mode = "xspi";
 		bootseq = dev_seq(dev);
@@ -264,8 +264,8 @@ int board_late_init(void)
 		puts("SD_MODE\n");
 		if (uclass_get_device_by_name(UCLASS_MMC,
 					      "mmc@f1040000", &dev)) {
-			puts("Boot from SD0 but without SD0 enabled!\n");
-			return -1;
+			debug("SD0 driver for SD0 device is not present\n");
+			break;
 		}
 		debug("mmc0 device found at %p, seq %d\n", dev, dev_seq(dev));
 
@@ -279,8 +279,8 @@ int board_late_init(void)
 		puts("SD_MODE1\n");
 		if (uclass_get_device_by_name(UCLASS_MMC,
 					      "mmc@f1050000", &dev)) {
-			puts("Boot from SD1 but without SD1 enabled!\n");
-			return -1;
+			debug("SD1 driver for SD1 device is not present\n");
+			break;
 		}
 		debug("mmc1 device found at %p, seq %d\n", dev, dev_seq(dev));
 
@@ -288,38 +288,38 @@ int board_late_init(void)
 		bootseq = dev_seq(dev);
 		break;
 	default:
-		mode = "";
 		printf("Invalid Boot Mode:0x%x\n", bootmode);
 		break;
 	}
 
-	if (bootseq >= 0) {
-		bootseq_len = snprintf(NULL, 0, "%i", bootseq);
-		debug("Bootseq len: %x\n", bootseq_len);
-	}
-
-	/*
-	 * One terminating char + one byte for space between mode
-	 * and default boot_targets
-	 */
-	env_targets = env_get("boot_targets");
-	if (env_targets)
-		env_targets_len = strlen(env_targets);
-
-	new_targets = calloc(1, strlen(mode) + env_targets_len + 2 +
-			     bootseq_len);
-	if (!new_targets)
-		return -ENOMEM;
-
-	if (bootseq >= 0)
-		sprintf(new_targets, "%s%x %s", mode, bootseq,
-			env_targets ? env_targets : "");
-	else
-		sprintf(new_targets, "%s %s", mode,
-			env_targets ? env_targets : "");
-
-	env_set("boot_targets", new_targets);
+	if (mode) {
+		if (bootseq >= 0) {
+			bootseq_len = snprintf(NULL, 0, "%i", bootseq);
+			debug("Bootseq len: %x\n", bootseq_len);
+		}
 
+		/*
+		 * One terminating char + one byte for space between mode
+		 * and default boot_targets
+		 */
+		env_targets = env_get("boot_targets");
+		if (env_targets)
+			env_targets_len = strlen(env_targets);
+
+		new_targets = calloc(1, strlen(mode) + env_targets_len + 2 +
+				     bootseq_len);
+		if (!new_targets)
+			return -ENOMEM;
+
+		if (bootseq >= 0)
+			sprintf(new_targets, "%s%x %s", mode, bootseq,
+				env_targets ? env_targets : "");
+		else
+			sprintf(new_targets, "%s %s", mode,
+				env_targets ? env_targets : "");
+
+		env_set("boot_targets", new_targets);
+	}
 	return board_late_init_xilinx();
 }