[2/2] omap4: panda: convert to device model

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 12ec6c71dc..dd574f57fa 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -848,6 +848,10 @@  dtb-$(CONFIG_TARGET_OMAP3_BEAGLE) += \
 dtb-$(CONFIG_TARGET_OMAP3_IGEP00X0) += \
 	omap3-igep0020.dtb
 
+dtb-$(CONFIG_TARGET_OMAP4_PANDA) += \
+	omap4-panda.dtb \
+	omap4-panda-es.dtb
+
 dtb-$(CONFIG_TARGET_SAMA5D2_PTC_EK) += \
 	at91-sama5d2_ptc_ek.dtb
 
diff --git a/arch/arm/dts/omap4-u-boot.dtsi b/arch/arm/dts/omap4-u-boot.dtsi
new file mode 100644
index 0000000000..4a6bafd6ed
--- /dev/null
+++ b/arch/arm/dts/omap4-u-boot.dtsi
@@ -0,0 +1,39 @@ 
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * U-Boot additions
+ *
+ * (C) Copyright 2020 Tero Kristo <t-kristo at ti.com>
+ */
+
+&l4_cfg {
+	segment at 0 {
+		/* SCM Core */
+		target-module at 2000 {
+			compatible = "simple-bus";
+		};
+
+		/* USB HS */
+		target-module at 64000 {
+			compatible = "simple-bus";
+		};
+	};
+};
+
+&l4_per {
+	segment at 0 {
+		/* UART3 */
+		target-module at 20000 {
+			compatible = "simple-bus";
+		};
+
+		/* I2C1 */
+		target-module at 70000 {
+			compatible = "simple-bus";
+		};
+
+		/* MMC1 */
+		target-module at 9c000 {
+			compatible = "simple-bus";
+		};
+	};
+};
diff --git a/board/ti/panda/panda.c b/board/ti/panda/panda.c
index 9ebecfdbf5..3cc6e78dfc 100644
--- a/board/ti/panda/panda.c
+++ b/board/ti/panda/panda.c
@@ -8,6 +8,7 @@ 
 #include <init.h>
 #include <log.h>
 #include <net.h>
+#include <serial.h>
 #include <asm/mach-types.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/mmc_host_def.h>
@@ -55,6 +56,17 @@  int board_init(void)
 	return 0;
 }
 
+#if defined(CONFIG_SPL_OS_BOOT)
+int spl_start_uboot(void)
+{
+	/* break into full u-boot on 'c' */
+	if (serial_tstc() && serial_getc() == 'c')
+		return 1;
+
+	return 0;
+}
+#endif /* CONFIG_SPL_OS_BOOT */
+
 int board_eth_init(bd_t *bis)
 {
 	return 0;
diff --git a/configs/omap4_panda_defconfig b/configs/omap4_panda_defconfig
index 3ac6319d2d..bf5f71c7a7 100644
--- a/configs/omap4_panda_defconfig
+++ b/configs/omap4_panda_defconfig
@@ -2,12 +2,14 @@  CONFIG_ARM=y
 CONFIG_ARCH_OMAP2PLUS=y
 CONFIG_OMAP44XX=y
 CONFIG_TARGET_OMAP4_PANDA=y
+CONFIG_DEFAULT_DEVICE_TREE="omap4-panda"
 CONFIG_SPL=y
 CONFIG_SPL_TEXT_BASE=0x40300000
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_BOOTCOMMAND="if test ${boot_fit} -eq 1; then run update_to_fit; fi; run findfdt; run init_console; run envboot; run distro_bootcmd"
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
+CONFIG_DEFAULT_FDT_FILE="omap4-panda.dtb"
 CONFIG_VERSION_VARIABLE=y
 # CONFIG_SPL_FS_EXT4 is not set
 # CONFIG_SPL_I2C_SUPPORT is not set
@@ -23,16 +25,20 @@  CONFIG_CMD_USB=y
 # CONFIG_CMD_SETEXPR is not set
 # CONFIG_CMD_NFS is not set
 CONFIG_CMD_EXT4_WRITE=y
+CONFIG_OF_CONTROL=y
 CONFIG_ENV_IS_IN_FAT=y
 CONFIG_ENV_FAT_DEVICE_AND_PART="0:1"
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
+CONFIG_DM=y
+CONFIG_DM_MMC=y
 CONFIG_MMC_OMAP_HS=y
 CONFIG_CONS_INDEX=3
 CONFIG_SYS_NS16550=y
 CONFIG_SPI=y
 CONFIG_OMAP3_SPI=y
 CONFIG_USB=y
+CONFIG_DM_USB=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_MUSB_UDC=y
 CONFIG_USB_OMAP3=y
@@ -40,3 +46,5 @@  CONFIG_USB_GADGET=y
 CONFIG_USB_HOST_ETHER=y
 CONFIG_USB_ETHER_SMSC95XX=y
 CONFIG_OF_LIBFDT=y
+CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_DM_ETH=y