arm: mvebu: Add SPI driver model support

This patch enables the DM support for the SPI driver and the
SPI NOR flash chips. Some MVEBU boards boot from SPI NOR, so
adding the aliases and enabling CONFIG_DM_SEQ_ALIAS is needed
here.

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

7 files changed, 22 insertions, 3 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b886d014011..68ae6b6d06d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -118,8 +118,11 @@ config ARCH_MVEBU
 	select OF_SEPARATE
 	select DM
 	select DM_SERIAL
+	select DM_SPI
+	select DM_SPI_FLASH
 	select SPL_DM
 	select SPL_OF_CONTROL
+	select SPL_SIMPLE_BUS
 
 config TARGET_DEVKIT3250
 	bool "Support devkit3250"
diff --git a/arch/arm/dts/armada-388-gp.dts b/arch/arm/dts/armada-388-gp.dts
index f576e938265..f3bcbc63203 100644
--- a/arch/arm/dts/armada-388-gp.dts
+++ b/arch/arm/dts/armada-388-gp.dts
@@ -51,6 +51,10 @@
 		stdout-path = "serial0:115200n8";
 	};
 
+	aliases {
+		spi0 = &spi0;
+	};
+
 	memory {
 		device_type = "memory";
 		reg = <0x00000000 0x80000000>; /* 2 GB */
@@ -65,8 +69,10 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&spi0_pins>;
 				status = "okay";
+				u-boot,dm-pre-reloc;
 
 				spi-flash@0 {
+					u-boot,dm-pre-reloc;
 					#address-cells = <1>;
 					#size-cells = <1>;
 					compatible = "st,m25p128", "jedec,spi-nor";
diff --git a/arch/arm/dts/armada-38x.dtsi b/arch/arm/dts/armada-38x.dtsi
index 04ecfe6e2bc..dc8a1a66c1f 100644
--- a/arch/arm/dts/armada-38x.dtsi
+++ b/arch/arm/dts/armada-38x.dtsi
@@ -70,6 +70,7 @@
 
 	soc {
 		compatible = "marvell,armada380-mbus", "simple-bus";
+		u-boot,dm-pre-reloc;
 		#address-cells = <2>;
 		#size-cells = <1>;
 		controller = <&mbusc>;
@@ -134,6 +135,7 @@
 
 		internal-regs {
 			compatible = "simple-bus";
+			u-boot,dm-pre-reloc;
 			#address-cells = <1>;
 			#size-cells = <1>;
 			ranges = <0 MBUS_ID(0xf0, 0x01) 0 0x100000>;
diff --git a/arch/arm/dts/armada-xp-gp.dts b/arch/arm/dts/armada-xp-gp.dts
index ca5f8bb2101..27799d1254e 100644
--- a/arch/arm/dts/armada-xp-gp.dts
+++ b/arch/arm/dts/armada-xp-gp.dts
@@ -68,6 +68,10 @@
 		stdout-path = "serial0:115200n8";
 	};
 
+	aliases {
+		spi0 = &spi0;
+	};
+
 	memory {
 		device_type = "memory";
 		/*
@@ -224,8 +228,10 @@
 
 			spi0: spi@10600 {
 				status = "okay";
+				u-boot,dm-pre-reloc;
 
 				spi-flash@0 {
+					u-boot,dm-pre-reloc;
 					#address-cells = <1>;
 					#size-cells = <1>;
 					compatible = "n25q128a13", "jedec,spi-nor";
diff --git a/arch/arm/dts/armada-xp.dtsi b/arch/arm/dts/armada-xp.dtsi
index 3de9b761cc1..3fac39e41d7 100644
--- a/arch/arm/dts/armada-xp.dtsi
+++ b/arch/arm/dts/armada-xp.dtsi
@@ -63,6 +63,7 @@
 
 	soc {
 		compatible = "marvell,armadaxp-mbus", "simple-bus";
+		u-boot,dm-pre-reloc;
 
 		bootrom {
 			compatible = "marvell,bootrom";
diff --git a/arch/arm/mach-mvebu/include/mach/config.h b/arch/arm/mach-mvebu/include/mach/config.h
index 3d188275733..74a1ff6ad7b 100644
--- a/arch/arm/mach-mvebu/include/mach/config.h
+++ b/arch/arm/mach-mvebu/include/mach/config.h
@@ -47,8 +47,7 @@
  * SPI Flash configuration
  */
 #ifdef CONFIG_CMD_SF
-#define CONFIG_HARD_SPI			1
-#define CONFIG_KIRKWOOD_SPI		1
+#define CONFIG_KIRKWOOD_SPI
 #ifndef CONFIG_ENV_SPI_BUS
 # define CONFIG_ENV_SPI_BUS		0
 #endif
@@ -60,6 +59,9 @@
 #endif
 #endif
 
+/* Needed for SPI NOR booting in SPL */
+#define CONFIG_DM_SEQ_ALIAS		1
+
 /*
  * Ethernet Driver configuration
  */
diff --git a/arch/arm/mach-mvebu/include/mach/soc.h b/arch/arm/mach-mvebu/include/mach/soc.h
index 800f5d55a25..3cdb1f24d77 100644
--- a/arch/arm/mach-mvebu/include/mach/soc.h
+++ b/arch/arm/mach-mvebu/include/mach/soc.h
@@ -47,7 +47,6 @@
 #define MVEBU_SDRAM_SCRATCH	(MVEBU_REGISTER(0x01504))
 #define MVEBU_L2_CACHE_BASE	(MVEBU_REGISTER(0x08000))
 #define CONFIG_SYS_PL310_BASE	MVEBU_L2_CACHE_BASE
-#define MVEBU_SPI_BASE		(MVEBU_REGISTER(0x10600))
 #define MVEBU_TWSI_BASE		(MVEBU_REGISTER(0x11000))
 #define MVEBU_MPP_BASE		(MVEBU_REGISTER(0x18000))
 #define MVEBU_GPIO0_BASE	(MVEBU_REGISTER(0x18100))