arm: mvebu: Add DM (driver model) support

This patch adds driver model support for some Marvell MVEBU SoC's. Including
Armada XP and 38x. All 3 currently mainlined boards are converted. DM is now
selected automatically for MVEBU platforms.

With this DM support now available for MVEBU, hardcoding the base addresses
and other information is not necessary any more. Probing should be done
by using the values provided via the device tree now instead. For this
the driver also need to be converted to DM. Patches for some of the drivers
will follow.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Luka Perkov <luka.perkov@sartura.hr>

Makefile

@@ -915,10 +915,10 @@ u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
 # U-Boot image. So we need to combine SPL and u-boot.bin instead of
 # u-boot.img in this case.
 ifdef CONFIG_MVEBU_BOOTROM_UARTBOOT
-u-boot-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
+u-boot-spl.kwb: u-boot-dtb.bin spl/u-boot-spl.bin FORCE
 	$(call if_changed,mkimage)
 else
-u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
+u-boot-spl.kwb: u-boot-dtb.img spl/u-boot-spl.bin FORCE
 	$(call if_changed,mkimage)
 endif
 

arch/arm/Kconfig

@@ -109,6 +109,9 @@ config ARCH_MVEBU
 	bool "Marvell MVEBU family (Armada XP/38x)"
 	select CPU_V7
 	select SUPPORT_SPL
+	select OF_CONTROL
+	select OF_SEPARATE
+	select DM
 
 config TARGET_DEVKIT3250
 	bool "Support devkit3250"

arch/arm/mach-mvebu/spl.c

@@ -31,9 +31,6 @@ u32 spl_boot_mode(void)
 
 void board_init_f(ulong dummy)
 {
-	/* Set global data pointer */
-	gd = &gdata;
-
 #ifndef CONFIG_MVEBU_BOOTROM_UARTBOOT
 	/*
 	 * Only call arch_cpu_init() when not returning to the

configs/db-88f6820-gp_defconfig

@@ -1,6 +1,7 @@
 CONFIG_ARM=y
 CONFIG_ARCH_MVEBU=y
 CONFIG_TARGET_DB_88F6820_GP=y
+CONFIG_DEFAULT_DEVICE_TREE="armada-388-gp"
 CONFIG_SPL=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set

configs/db-mv784mp-gp_defconfig

@@ -1,6 +1,7 @@
 CONFIG_ARM=y
 CONFIG_ARCH_MVEBU=y
 CONFIG_TARGET_DB_MV784MP_GP=y
+CONFIG_DEFAULT_DEVICE_TREE="armada-xp-gp"
 CONFIG_SPL=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set

configs/maxbcm_defconfig

@@ -1,6 +1,7 @@
 CONFIG_ARM=y
 CONFIG_ARCH_MVEBU=y
 CONFIG_TARGET_MAXBCM=y
+CONFIG_DEFAULT_DEVICE_TREE="armada-xp-gp"
 CONFIG_SPL=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set