Merge tag 'u-boot-imx-20200107' of https://gitlab.denx.de/u-boot/custodians/u-boot-imx

New for 2020.04
---------------

- New boards
	Embedded Artists COM board
	Xea Board
- Switch to DM:
	Aristainetos boards
	Toradex colibri (DM_ETH)
	iCubox
	GE bx50v3
	mx7dsabre (DM_ETH)
	cx9020
- New features:
	Bootaux with elf files
	Default SYS_THUMB_BUILD for i.MX6/7
- Fixes:
	DHCOM i.MX6 PDK
	Engicam
	i.MX8M tools (imx8m_image)

Travis: https://travis-ci.org/sbabic/u-boot-imx/builds/633679664

drivers/ddr/imx/imx8m/ddr_init.c

@@ -20,9 +20,10 @@ void ddr_cfg_umctl2(struct dram_cfg_param *ddrc_cfg, int num)
 	}
 }
 
-void ddr_init(struct dram_timing_info *dram_timing)
+int ddr_init(struct dram_timing_info *dram_timing)
 {
 	unsigned int tmp, initial_drate, target_freq;
+	int ret;
 
 	debug("DDRINFO: start DRAM init\n");
 
@@ -98,7 +99,11 @@ void ddr_init(struct dram_timing_info *dram_timing)
 	 * accessing relevant PUB registers
 	 */
 	debug("DDRINFO:ddrphy config start\n");
-	ddr_cfg_phy(dram_timing);
+
+	ret = ddr_cfg_phy(dram_timing);
+	if (ret)
+		return ret;
+
 	debug("DDRINFO: ddrphy config done\n");
 
 	/*
@@ -165,4 +170,6 @@ void ddr_init(struct dram_timing_info *dram_timing)
 
 	/* save the dram timing config into memory */
 	dram_config_save(dram_timing, CONFIG_SAVED_DRAM_TIMING_BASE);
+
+	return 0;
 }

drivers/ddr/imx/imx8m/ddrphy_train.c

@@ -8,13 +8,14 @@
 #include <asm/arch/ddr.h>
 #include <asm/arch/lpddr4_define.h>
 
-void ddr_cfg_phy(struct dram_timing_info *dram_timing)
+int ddr_cfg_phy(struct dram_timing_info *dram_timing)
 {
 	struct dram_cfg_param *dram_cfg;
 	struct dram_fsp_msg *fsp_msg;
 	unsigned int num;
 	int i = 0;
 	int j = 0;
+	int ret;
 
 	/* initialize PHY configuration */
 	dram_cfg = dram_timing->ddrphy_cfg;
@@ -60,7 +61,9 @@ void ddr_cfg_phy(struct dram_timing_info *dram_timing)
 		dwc_ddrphy_apb_wr(0xd0099, 0x0);
 
 		/* Wait for the training firmware to complete */
-		wait_ddrphy_training_complete();
+		ret = wait_ddrphy_training_complete();
+		if (ret)
+			return ret;
 
 		/* Halt the microcontroller. */
 		dwc_ddrphy_apb_wr(0xd0099, 0x1);
@@ -83,4 +86,6 @@ void ddr_cfg_phy(struct dram_timing_info *dram_timing)
 
 	/* save the ddr PHY trained CSR in memory for low power use */
 	ddrphy_trained_csr_save(ddrphy_trained_csr, ddrphy_trained_csr_num);
+
+	return 0;
 }

drivers/ddr/imx/imx8m/ddrphy_utils.c

@@ -84,7 +84,7 @@ static inline void decode_streaming_message(void)
 	debug("\n");
 }
 
-void wait_ddrphy_training_complete(void)
+int wait_ddrphy_training_complete(void)
 {
 	unsigned int mail;
 
@@ -95,10 +95,10 @@ void wait_ddrphy_training_complete(void)
 			decode_streaming_message();
 		} else if (mail == 0x07) {
 			debug("Training PASS\n");
-			break;
+			return 0;
 		} else if (mail == 0xff) {
-			printf("Training FAILED\n");
-			break;
+			debug("Training FAILED\n");
+			return -1;
 		}
 	}
 }