From b72894f14da79cdcdab8007b079d922bd28e5ce7 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Fri, 22 Apr 2016 14:28:54 +0200
Subject: ARM64: zynqmp: Add support for standard distro boot commands

Nand and QSPI are not defined now but this will be extended.
Based on selected bootmode boot_targets are rewritten.
Patch also contains detection if variables are saved. If yes don't
rewrite boot_targets variable.

Also move variable setup to the end of file because SCSI needs to be
defined before others macros are using it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
---
 board/xilinx/zynqmp/zynqmp.c | 34 +++++++++++++++++++++++++++-------
 1 file changed, 27 insertions(+), 7 deletions(-)

(limited to 'board/xilinx/zynqmp/zynqmp.c')

diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index 4623cd49e9..f15dc5d715 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -9,6 +9,7 @@
 #include <sata.h>
 #include <ahci.h>
 #include <scsi.h>
+#include <malloc.h>
 #include <asm/arch/clk.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/sys_proto.h>
@@ -214,6 +215,13 @@ int board_late_init(void)
 {
 	u32 reg = 0;
 	u8 bootmode;
+	const char *mode;
+	char *new_targets;
+
+	if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
+		debug("Saved variables - Skipping\n");
+		return 0;
+	}
 
 	reg = readl(&crlapb_base->boot_mode);
 	bootmode = reg & BOOT_MODES_MASK;
@@ -222,37 +230,49 @@ int board_late_init(void)
 	switch (bootmode) {
 	case JTAG_MODE:
 		puts("JTAG_MODE\n");
-		setenv("modeboot", "jtagboot");
+		mode = "pxe dhcp";
 		break;
 	case QSPI_MODE_24BIT:
 	case QSPI_MODE_32BIT:
-		setenv("modeboot", "qspiboot");
+		mode = "qspi0";
 		puts("QSPI_MODE\n");
 		break;
 	case EMMC_MODE:
 		puts("EMMC_MODE\n");
-		setenv("modeboot", "sdboot");
+		mode = "mmc0";
 		break;
 	case SD_MODE:
 		puts("SD_MODE\n");
-		setenv("modeboot", "sdboot");
+		mode = "mmc0";
 		break;
 	case SD_MODE1:
 		puts("SD_MODE1\n");
 #if defined(CONFIG_ZYNQ_SDHCI0) && defined(CONFIG_ZYNQ_SDHCI1)
-		setenv("sdbootdev", "1");
+		mode = "mmc1";
+#else
+		mode = "mmc0";
 #endif
-		setenv("modeboot", "sdboot");
 		break;
 	case NAND_MODE:
 		puts("NAND_MODE\n");
-		setenv("modeboot", "nandboot");
+		mode = "nand0";
 		break;
 	default:
+		mode = "";
 		printf("Invalid Boot Mode:0x%x\n", bootmode);
 		break;
 	}
 
+	/*
+	 * One terminating char + one byte for space between mode
+	 * and default boot_targets
+	 */
+	new_targets = calloc(1, strlen(mode) +
+				strlen(getenv("boot_targets")) + 2);
+
+	sprintf(new_targets, "%s %s", mode, getenv("boot_targets"));
+	setenv("boot_targets", new_targets);
+
 	return 0;
 }
 
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