Merge branch 'for-next/rpi'

26 files changed, 326 insertions, 293 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b6a9f9358f..4d952698fc 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -19,15 +19,6 @@ config ARM_USE_COMPRESSED_DTB
 	select UNCOMPRESS
 	select LZO_DECOMPRESS
 
-config ARCH_BCM283X
-	bool
-	select GPIOLIB
-	select CLKDEV_LOOKUP
-	select COMMON_CLK
-	select CLOCKSOURCE_BCM283X
-	select ARM_AMBA
-	select HAS_DEBUG_LL
-
 menu "System Type"
 
 config BUILTIN_DTB
@@ -56,15 +47,19 @@ config ARCH_AT91
 	select HAVE_CLK
 	select PINCTRL_AT91
 
-config ARCH_BCM2835
-	bool "Broadcom BCM2835 boards"
-	select ARCH_BCM283X
-	select CPU_ARM1176
 
-config ARCH_BCM2836
-	bool "Broadcom BCM2836 boards"
-	select ARCH_BCM283X
-	select CPU_V7
+config ARCH_BCM283X
+	bool "Broadcom BCM283x based boards"
+	select GPIOLIB
+	select CLKDEV_LOOKUP
+	select COMMON_CLK
+	select CLOCKSOURCE_BCM283X
+	select ARM_AMBA
+	select HAS_DEBUG_LL
+	select RELOCATABLE
+	select OFTREE
+	select OFDEVICE
+	select HAVE_PBL_MULTI_IMAGES
 
 config ARCH_CLPS711X
 	bool "Cirrus Logic EP711x/EP721x/EP731x"
diff --git a/arch/arm/boards/raspberry-pi/Makefile b/arch/arm/boards/raspberry-pi/Makefile
index 7a3d7de241..a3e93eb73a 100644
--- a/arch/arm/boards/raspberry-pi/Makefile
+++ b/arch/arm/boards/raspberry-pi/Makefile
@@ -1,4 +1,2 @@
 obj-$(CONFIG_MACH_RPI_COMMON) += rpi-common.o
-obj-$(CONFIG_MACH_RPI) += rpi.o
-obj-$(CONFIG_MACH_RPI2) += rpi2.o
 lwl-y += lowlevel.o
diff --git a/arch/arm/boards/raspberry-pi/lowlevel.c b/arch/arm/boards/raspberry-pi/lowlevel.c
index 485171a116..4e71e29e0c 100644
--- a/arch/arm/boards/raspberry-pi/lowlevel.c
+++ b/arch/arm/boards/raspberry-pi/lowlevel.c
@@ -4,8 +4,22 @@
 #include <asm/barebox-arm-head.h>
 #include <mach/platform.h>
 
-void __naked barebox_arm_reset_vector(void)
+extern char __dtb_bcm2835_rpi_start[];
+ENTRY_FUNCTION(start_raspberry_pi1, r0, r1, r2)
 {
-        arm_cpu_lowlevel_init();
-	barebox_arm_entry(BCM2835_SDRAM_BASE, SZ_128M, NULL);
+	void *fdt = __dtb_bcm2835_rpi_start - get_runtime_offset();
+
+	arm_cpu_lowlevel_init();
+
+	barebox_arm_entry(BCM2835_SDRAM_BASE, SZ_128M, fdt);
+}
+
+extern char __dtb_bcm2836_rpi_2_start[];
+ENTRY_FUNCTION(start_raspberry_pi2, r0, r1, r2)
+{
+	void *fdt = __dtb_bcm2836_rpi_2_start - get_runtime_offset();
+
+	arm_cpu_lowlevel_init();
+
+	barebox_arm_entry(BCM2835_SDRAM_BASE, SZ_512M, fdt);
 }
diff --git a/arch/arm/boards/raspberry-pi/rpi-common.c b/arch/arm/boards/raspberry-pi/rpi-common.c
index 147fce9952..6e375bc984 100644
--- a/arch/arm/boards/raspberry-pi/rpi-common.c
+++ b/arch/arm/boards/raspberry-pi/rpi-common.c
@@ -73,10 +73,9 @@ static int rpi_get_arm_mem(u32 *size)
 	return 0;
 }
 
-static int rpi_register_clkdev(u32 clock_id, const char *name)
+static struct clk *rpi_register_firmare_clock(u32 clock_id, const char *name)
 {
 	BCM2835_MBOX_STACK_ALIGN(struct msg_get_clock_rate, msg);
-	struct clk *clk;
 	int ret;
 
 	BCM2835_MBOX_INIT_HDR(msg);
@@ -85,16 +84,9 @@ static int rpi_register_clkdev(u32 clock_id, const char *name)
 
 	ret = bcm2835_mbox_call_prop(BCM2835_MBOX_PROP_CHAN, &msg->hdr);
 	if (ret)
-		return ret;
+		return ERR_PTR(ret);
 
-	clk = clk_fixed(name, msg->get_clock_rate.body.resp.rate_hz);
-	if (IS_ERR(clk))
-		return PTR_ERR(clk);
-
-	if (!clk_register_clkdev(clk, NULL, name))
-		return -ENODEV;
-
-	return 0;
+	return clk_fixed(name, msg->get_clock_rate.body.resp.rate_hz);
 }
 
 void rpi_set_usbethaddr(void)
@@ -146,6 +138,13 @@ void rpi_add_led(void)
 		led_set_trigger(LED_TRIGGER_HEARTBEAT, &l->led);
 }
 
+void rpi_b_init(void)
+{
+	rpi_leds[0].gpio = 16;
+	rpi_leds[0].active_low = 1;
+	rpi_set_usbethaddr();
+}
+
 void rpi_b_plus_init(void)
 {
 	rpi_leds[0].gpio = 47;
@@ -153,12 +152,39 @@ void rpi_b_plus_init(void)
 	rpi_set_usbethaddr();
 }
 
+/* See comments in mbox.h for data source */
+const struct rpi_model rpi_models_old_scheme[] = {
+	RPI_MODEL(0, "Unknown model", NULL),
+	RPI_MODEL(BCM2835_BOARD_REV_B_I2C0_2, "Model B (no P5)", rpi_b_init),
+	RPI_MODEL(BCM2835_BOARD_REV_B_I2C0_3, "Model B (no P5)", rpi_b_init),
+	RPI_MODEL(BCM2835_BOARD_REV_B_I2C1_4, "Model B", rpi_b_init),
+	RPI_MODEL(BCM2835_BOARD_REV_B_I2C1_5, "Model B", rpi_b_init),
+	RPI_MODEL(BCM2835_BOARD_REV_B_I2C1_6, "Model B", rpi_b_init),
+	RPI_MODEL(BCM2835_BOARD_REV_A_7, "Model A", NULL),
+	RPI_MODEL(BCM2835_BOARD_REV_A_8, "Model A", NULL),
+	RPI_MODEL(BCM2835_BOARD_REV_A_9, "Model A", NULL),
+	RPI_MODEL(BCM2835_BOARD_REV_B_REV2_d, "Model B rev2", rpi_b_init),
+	RPI_MODEL(BCM2835_BOARD_REV_B_REV2_e, "Model B rev2", rpi_b_init),
+	RPI_MODEL(BCM2835_BOARD_REV_B_REV2_f, "Model B rev2", rpi_b_init),
+	RPI_MODEL(BCM2835_BOARD_REV_B_PLUS, "Model B+", rpi_b_plus_init),
+	RPI_MODEL(BCM2835_BOARD_REV_CM, "Compute Module", NULL),
+	RPI_MODEL(BCM2835_BOARD_REV_A_PLUS, "Model A+", NULL),
+};
+
+const struct rpi_model rpi_models_new_scheme[] = {
+	RPI_MODEL(0, "Unknown model", NULL),
+	RPI_MODEL(BCM2836_BOARD_REV_2_B, "2 Model B", rpi_b_plus_init),
+};
+
 static int rpi_board_rev = 0;
+const struct rpi_model *model;
 
 static void rpi_get_board_rev(void)
 {
 	int ret;
 	char *name;
+	const struct rpi_model *rpi_models;
+	size_t rpi_models_size;
 
 	BCM2835_MBOX_STACK_ALIGN(struct msg_get_board_rev, msg);
 	BCM2835_MBOX_INIT_HDR(msg);
@@ -183,10 +209,17 @@ static void rpi_get_board_rev(void)
 	 * http://www.raspberrypi.org/forums/viewtopic.php?f=31&t=20594
 	 */
 	rpi_board_rev = msg->get_board_rev.body.resp.rev;
-	if (rpi_board_rev & 0x800000)
+	if (rpi_board_rev & 0x800000) {
 		rpi_board_rev = (rpi_board_rev >> 4) & 0xff;
-	else
+		rpi_models = rpi_models_new_scheme;
+		rpi_models_size = ARRAY_SIZE(rpi_models_new_scheme);
+
+	} else {
 		rpi_board_rev &= 0xff;
+		rpi_models = rpi_models_old_scheme;
+		rpi_models_size = ARRAY_SIZE(rpi_models_old_scheme);
+	}
+
 	if (rpi_board_rev >= rpi_models_size) {
 		printf("RPI: Board rev %u outside known range\n",
 		       rpi_board_rev);
@@ -201,8 +234,8 @@ static void rpi_get_board_rev(void)
 	if (!rpi_board_rev)
 		goto unknown_rev;
 
-	name = basprintf("RaspberryPi %s %s",
-			   rpi_models[rpi_board_rev].name, rpi_model_string);
+	model = &rpi_models[rpi_board_rev];
+	name = basprintf("RaspberryPi %s", model->name);
 	barebox_set_model(name);
 	free(name);
 
@@ -210,17 +243,15 @@ static void rpi_get_board_rev(void)
 
 unknown_rev:
 	rpi_board_rev = 0;
-	name = basprintf("RaspberryPi %s", rpi_model_string);
-	barebox_set_model(name);
-	free(name);
+	barebox_set_model("RaspberryPi (unknown rev)");
 }
 
 static void rpi_model_init(void)
 {
-	if (!rpi_models[rpi_board_rev].init)
+	if (!model->init)
 		return;
 
-	rpi_models[rpi_board_rev].init();
+	model->init();
 	rpi_add_led();
 }
 
@@ -239,19 +270,27 @@ static int rpi_mem_init(void)
 }
 mem_initcall(rpi_mem_init);
 
-static int rpi_console_init(void)
+static int rpi_postcore_init(void)
 {
 	rpi_get_board_rev();
 	barebox_set_hostname("rpi");
 
-	bcm2835_register_uart();
 	return 0;
 }
-console_initcall(rpi_console_init);
+postcore_initcall(rpi_postcore_init);
 
 static int rpi_clock_init(void)
 {
-	rpi_register_clkdev(BCM2835_MBOX_CLOCK_ID_EMMC, "bcm2835_mci0");
+	struct clk *clk;
+
+	clk = rpi_register_firmare_clock(BCM2835_MBOX_CLOCK_ID_EMMC,
+					 "bcm2835_mci0");
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	clk_register_clkdev(clk, NULL, "20300000.sdhci");
+	clk_register_clkdev(clk, NULL, "3f300000.sdhci");
+
 	return 0;
 }
 postconsole_initcall(rpi_clock_init);
@@ -285,7 +324,6 @@ static int rpi_env_init(void)
 static int rpi_devices_init(void)
 {
 	rpi_model_init();
-	bcm2835_register_mci();
 	bcm2835_register_fb();
 	armlinux_set_architecture(MACH_TYPE_BCM2708);
 	rpi_env_init();
diff --git a/arch/arm/boards/raspberry-pi/rpi.c b/arch/arm/boards/raspberry-pi/rpi.c
deleted file mode 100644
index dd2ad7f5a5..0000000000
--- a/arch/arm/boards/raspberry-pi/rpi.c
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Copyright (C) 2009 Carlo Caione <carlo@carlocaione.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include "rpi.h"
-
-static void rpi_b_init(void)
-{
-	rpi_leds[0].gpio = 16;
-	rpi_leds[0].active_low = 1;
-	rpi_set_usbethaddr();
-}
-
-/* See comments in mbox.h for data source */
-const struct rpi_model rpi_models[] = {
-	RPI_MODEL(0, "Unknown model", NULL),
-	RPI_MODEL(BCM2835_BOARD_REV_B_I2C0_2, "Model B (no P5)", rpi_b_init),
-	RPI_MODEL(BCM2835_BOARD_REV_B_I2C0_3, "Model B (no P5)", rpi_b_init),
-	RPI_MODEL(BCM2835_BOARD_REV_B_I2C1_4, "Model B", rpi_b_init),
-	RPI_MODEL(BCM2835_BOARD_REV_B_I2C1_5, "Model B", rpi_b_init),
-	RPI_MODEL(BCM2835_BOARD_REV_B_I2C1_6, "Model B", rpi_b_init),
-	RPI_MODEL(BCM2835_BOARD_REV_A_7, "Model A", NULL),
-	RPI_MODEL(BCM2835_BOARD_REV_A_8, "Model A", NULL),
-	RPI_MODEL(BCM2835_BOARD_REV_A_9, "Model A", NULL),
-	RPI_MODEL(BCM2835_BOARD_REV_B_REV2_d, "Model B rev2", rpi_b_init),
-	RPI_MODEL(BCM2835_BOARD_REV_B_REV2_e, "Model B rev2", rpi_b_init),
-	RPI_MODEL(BCM2835_BOARD_REV_B_REV2_f, "Model B rev2", rpi_b_init),
-	RPI_MODEL(BCM2835_BOARD_REV_B_PLUS, "Model B+", rpi_b_plus_init),
-	RPI_MODEL(BCM2835_BOARD_REV_CM, "Compute Module", NULL),
-	RPI_MODEL(BCM2835_BOARD_REV_A_PLUS, "Model A+", NULL),
-};
-const size_t rpi_models_size = ARRAY_SIZE(rpi_models);
-const char *rpi_model_string = "(BCM2835/ARM1176JZF-S)";
diff --git a/arch/arm/boards/raspberry-pi/rpi.h b/arch/arm/boards/raspberry-pi/rpi.h
index 739cdee1b3..dd32fee809 100644
--- a/arch/arm/boards/raspberry-pi/rpi.h
+++ b/arch/arm/boards/raspberry-pi/rpi.h
@@ -17,9 +17,6 @@ struct rpi_model {
 	void (*init)(void);
 };
 
-extern const struct rpi_model rpi_models[];
-extern const size_t rpi_models_size;
-extern const char *rpi_model_string;
 extern struct gpio_led rpi_leds[];
 
 void rpi_b_plus_init(void);
diff --git a/arch/arm/boards/raspberry-pi/rpi2.c b/arch/arm/boards/raspberry-pi/rpi2.c
deleted file mode 100644
index 2cfc06f8a6..0000000000
--- a/arch/arm/boards/raspberry-pi/rpi2.c
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include "rpi.h"
-
-const struct rpi_model rpi_models[] = {
-	RPI_MODEL(0, "Unknown model", NULL),
-	RPI_MODEL(BCM2836_BOARD_REV_2_B, "2 Model B", rpi_b_plus_init),
-};
-const size_t rpi_models_size = ARRAY_SIZE(rpi_models);
-const char *rpi_model_string = "(BCM2836/CORTEX-A7)";
diff --git a/arch/arm/configs/rpi2_defconfig b/arch/arm/configs/rpi2_defconfig
deleted file mode 100644
index dbb31e62e2..0000000000
--- a/arch/arm/configs/rpi2_defconfig
+++ /dev/null
@@ -1,72 +0,0 @@
-CONFIG_ARCH_BCM2836=y
-CONFIG_AEABI=y
-CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
-CONFIG_ARM_UNWIND=y
-CONFIG_MMU=y
-CONFIG_MALLOC_TLSF=y
-CONFIG_KALLSYMS=y
-CONFIG_PROMPT="R-Pi> "
-CONFIG_HUSH_FANCY_PROMPT=y
-CONFIG_CMDLINE_EDITING=y
-CONFIG_AUTO_COMPLETE=y
-CONFIG_MENU=y
-CONFIG_BOOTM_SHOW_TYPE=y
-CONFIG_BOOTM_VERBOSE=y
-CONFIG_BOOTM_INITRD=y
-CONFIG_BOOTM_OFTREE=y
-CONFIG_BLSPEC=y
-CONFIG_DEFAULT_ENVIRONMENT_GENERIC_NEW=y
-CONFIG_DEFAULT_ENVIRONMENT_PATH="arch/arm/boards/raspberry-pi/env"
-CONFIG_LONGHELP=y
-CONFIG_CMD_IOMEM=y
-CONFIG_CMD_MEMINFO=y
-CONFIG_CMD_GO=y
-CONFIG_CMD_LOADB=y
-CONFIG_CMD_LOADY=y
-CONFIG_CMD_RESET=y
-CONFIG_CMD_UIMAGE=y
-CONFIG_CMD_PARTITION=y
-CONFIG_CMD_EXPORT=y
-CONFIG_CMD_PRINTENV=y
-CONFIG_CMD_MAGICVAR=y
-CONFIG_CMD_MAGICVAR_HELP=y
-CONFIG_CMD_SAVEENV=y
-CONFIG_CMD_FILETYPE=y
-CONFIG_CMD_LN=y
-CONFIG_CMD_MD5SUM=y
-CONFIG_CMD_UNCOMPRESS=y
-CONFIG_CMD_LET=y
-CONFIG_CMD_MSLEEP=y
-CONFIG_CMD_SLEEP=y
-CONFIG_CMD_ECHO_E=y
-CONFIG_CMD_EDIT=y
-CONFIG_CMD_LOGIN=y
-CONFIG_CMD_MENU=y
-CONFIG_CMD_MENU_MANAGEMENT=y
-CONFIG_CMD_PASSWD=y
-CONFIG_CMD_READLINE=y
-CONFIG_CMD_TIMEOUT=y
-CONFIG_CMD_CRC=y
-CONFIG_CMD_CRC_CMP=y
-CONFIG_CMD_MM=y
-CONFIG_CMD_CLK=y
-CONFIG_CMD_DETECT=y
-CONFIG_CMD_GPIO=y
-CONFIG_CMD_OF_NODE=y
-CONFIG_CMD_OF_PROPERTY=y
-CONFIG_CMD_OFTREE=y
-CONFIG_CMD_TIME=y
-CONFIG_SERIAL_AMBA_PL011=y
-CONFIG_MCI=y
-CONFIG_MCI_BCM283X=y
-CONFIG_LED=y
-CONFIG_LED_GPIO=y
-CONFIG_LED_TRIGGERS=y
-CONFIG_GPIO_BCM283X=y
-CONFIG_REGULATOR=y
-CONFIG_FS_EXT4=y
-CONFIG_FS_FAT=y
-CONFIG_FS_FAT_WRITE=y
-CONFIG_FS_FAT_LFN=y
-CONFIG_DIGEST_SHA1_GENERIC=y
-CONFIG_DIGEST_SHA256_GENERIC=y
diff --git a/arch/arm/configs/rpi_defconfig b/arch/arm/configs/rpi_defconfig
index 386522dcd3..6dc90c59b3 100644
--- a/arch/arm/configs/rpi_defconfig
+++ b/arch/arm/configs/rpi_defconfig
@@ -1,4 +1,6 @@
-CONFIG_ARCH_BCM2835=y
+CONFIG_ARCH_BCM283X=y
+CONFIG_MACH_RPI=y
+CONFIG_MACH_RPI2=y
 CONFIG_AEABI=y
 CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
 CONFIG_ARM_UNWIND=y
@@ -63,6 +65,7 @@ CONFIG_LED=y
 CONFIG_LED_GPIO=y
 CONFIG_LED_TRIGGERS=y
 CONFIG_GPIO_BCM283X=y
+# CONFIG_PINCTRL is not set
 CONFIG_REGULATOR=y
 CONFIG_FS_EXT4=y
 CONFIG_FS_FAT=y
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 70359d8242..0c9e0e8dad 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -58,6 +58,8 @@ pbl-dtb-$(CONFIG_MACH_PLATHOME_OPENBLOCKS_A6) += kirkwood-openblocks_a6-bb.dtb.o
 pbl-dtb-$(CONFIG_MACH_RADXA_ROCK) += rk3188-radxarock.dtb.o
 pbl-dtb-$(CONFIG_MACH_PHYTEC_SOM_RK3288) += rk3288-phycore-som.dtb.o
 pbl-dtb-$(CONFIG_MACH_REALQ7) += imx6q-dmo-edmqmx6.dtb.o
+pbl-dtb-$(CONFIG_MACH_RPI) += bcm2835-rpi.dtb.o
+pbl-dtb-$(CONFIG_MACH_RPI2) += bcm2836-rpi-2.dtb.o
 pbl-dtb-$(CONFIG_MACH_SABRELITE) += imx6q-sabrelite.dtb.o imx6dl-sabrelite.dtb.o
 pbl-dtb-$(CONFIG_MACH_SABRESD) += imx6q-sabresd.dtb.o
 pbl-dtb-$(CONFIG_MACH_FREESCALE_IMX6SX_SABRESDB) += imx6sx-sdb.dtb.o
diff --git a/arch/arm/dts/bcm2835-rpi.dts b/arch/arm/dts/bcm2835-rpi.dts
new file mode 100644
index 0000000000..0095f58a3c
--- /dev/null
+++ b/arch/arm/dts/bcm2835-rpi.dts
@@ -0,0 +1,11 @@
+#include <arm/bcm2835-rpi-a.dts>
+
+/ {
+	chosen {
+		stdout-path = &uart0;
+	};
+
+	memory {
+		reg = <0x0 0x0>;
+	};
+};
diff --git a/arch/arm/dts/bcm2836-rpi-2.dts b/arch/arm/dts/bcm2836-rpi-2.dts
new file mode 100644
index 0000000000..42b6abb180
--- /dev/null
+++ b/arch/arm/dts/bcm2836-rpi-2.dts
@@ -0,0 +1,11 @@
+#include <arm/bcm2836-rpi-2-b.dts>
+
+/ {
+	chosen {
+		stdout-path = &uart0;
+	};
+
+	memory {
+		reg = <0x0 0x0>;
+	};
+};
diff --git a/arch/arm/mach-bcm283x/Kconfig b/arch/arm/mach-bcm283x/Kconfig
index e861268627..1457f114cc 100644
--- a/arch/arm/mach-bcm283x/Kconfig
+++ b/arch/arm/mach-bcm283x/Kconfig
@@ -2,24 +2,43 @@ if ARCH_BCM283X
 
 config ARCH_TEXT_BASE
 	hex
-	default 0x04000000
+	default 0x0
 
 config MACH_RPI_COMMON
 	bool
 
-choice
-	prompt "Broadcom Board type"
+menu "select Broadcom BCM283X boards to be built"
 
 config MACH_RPI
 	bool "RaspberryPi (BCM2835/ARM1176JZF-S)"
-	depends on ARCH_BCM2835
+	select CPU_V6
 	select MACH_RPI_COMMON
 
 config MACH_RPI2
 	bool "RaspberryPi 2 (BCM2836/CORTEX-A7)"
-	depends on ARCH_BCM2836
+	select CPU_V7
 	select MACH_RPI_COMMON
 
+endmenu
+
+config MACH_RPI_DEBUG_UART_BASE
+	hex
+	default 0x20201000 if MACH_RPI_DEBUG_UART_RPI
+	default 0x3f201000 if MACH_RPI_DEBUG_UART_RPI2
+
+if DEBUG_LL
+
+choice
+	prompt "Lowlevel debug UART"
+
+config MACH_RPI_DEBUG_UART_RPI
+	bool "use RaspberryPi 1 compatible base"
+
+config MACH_RPI_DEBUG_UART_RPI2
+	bool "use RaspberryPi 2 and 3 compatible base"
+
 endchoice
 
 endif
+
+endif
diff --git a/arch/arm/mach-bcm283x/Makefile b/arch/arm/mach-bcm283x/Makefile
index 940f98cbce..96ea69365e 100644
--- a/arch/arm/mach-bcm283x/Makefile
+++ b/arch/arm/mach-bcm283x/Makefile
@@ -1 +1 @@
-obj-y += core.o mbox.o
+obj-y += core.o mbox.o wd.o
diff --git a/arch/arm/mach-bcm283x/core.c b/arch/arm/mach-bcm283x/core.c
index 64f3781388..fddcb0d1a1 100644
--- a/arch/arm/mach-bcm283x/core.c
+++ b/arch/arm/mach-bcm283x/core.c
@@ -18,7 +18,6 @@
 
 #include <common.h>
 #include <init.h>
-#include <restart.h>
 
 #include <linux/clk.h>
 #include <linux/clkdev.h>
@@ -29,7 +28,6 @@
 #include <linux/sizes.h>
 
 #include <mach/platform.h>
-#include <mach/wd.h>
 #include <mach/core.h>
 #include <linux/amba/bus.h>
 
@@ -42,21 +40,15 @@ static int bcm2835_clk_init(void)
 
 	clk = clk_fixed("uart0-pl0110", 3 * 1000 * 1000);
 	clk_register_clkdev(clk, NULL, "uart0-pl0110");
+	clk_register_clkdev(clk, NULL, "20201000.serial");
 
 	clk = clk_fixed("bcm2835-cs", 1 * 1000 * 1000);
 	clk_register_clkdev(clk, NULL, "bcm2835-cs");
 
-	add_generic_device("bcm2835-cs", DEVICE_ID_SINGLE, NULL, BCM2835_ST_BASE, 0x1C, IORESOURCE_MEM, NULL);
-
 	return 0;
 }
 postcore_initcall(bcm2835_clk_init);
 
-void bcm2835_register_uart(void)
-{
-	amba_apb_device_add(NULL, "uart0-pl011", 0, BCM2835_UART0_BASE, 4096, NULL, 0);
-}
-
 void bcm2835_add_device_sdram(u32 size)
 {
 	if (!size)
@@ -64,25 +56,3 @@ void bcm2835_add_device_sdram(u32 size)
 
 	arm_add_mem_device("ram0", BCM2835_SDRAM_BASE, size);
 }
-#define RESET_TIMEOUT 10
-
-static void __noreturn bcm2835_restart_soc(struct restart_handler *rst)
-{
-	uint32_t rstc;
-
-	rstc = readl(PM_RSTC);
-	rstc &= ~PM_RSTC_WRCFG_SET;
-	rstc |= PM_RSTC_WRCFG_FULL_RESET;
-	writel(PM_PASSWORD | RESET_TIMEOUT, PM_WDOG);
-	writel(PM_PASSWORD | rstc, PM_RSTC);
-
-	hang();
-}
-
-static int bcm2835_dev_init(void)
-{
-	add_generic_device("bcm2835-gpio", 0, NULL, BCM2835_GPIO_BASE, 0xB0, IORESOURCE_MEM, NULL);
-	restart_handler_register_fn(bcm2835_restart_soc);
-	return 0;
-}
-coredevice_initcall(bcm2835_dev_init);
diff --git a/arch/arm/mach-bcm283x/include/mach/core.h b/arch/arm/mach-bcm283x/include/mach/core.h
index b0bed80ea0..a1c47f9154 100644
--- a/arch/arm/mach-bcm283x/include/mach/core.h
+++ b/arch/arm/mach-bcm283x/include/mach/core.h
@@ -18,15 +18,8 @@
 
 #include <mach/platform.h>
 
-void bcm2835_register_uart(void);
 void bcm2835_add_device_sdram(u32 size);
 
-static void inline bcm2835_register_mci(void)
-{
-	add_generic_device("bcm2835_mci", 0, NULL, BCM2835_EMMC_BASE, 0xFC,
-			   IORESOURCE_MEM, NULL);
-}
-
 static void inline bcm2835_register_fb(void)
 {
 	add_generic_device("bcm2835_fb", 0, NULL, 0, 0, 0, NULL);
diff --git a/arch/arm/mach-bcm283x/include/mach/debug_ll.h b/arch/arm/mach-bcm283x/include/mach/debug_ll.h
index be93cd95ad..a625a8bdb7 100644
--- a/arch/arm/mach-bcm283x/include/mach/debug_ll.h
+++ b/arch/arm/mach-bcm283x/include/mach/debug_ll.h
@@ -20,7 +20,11 @@
 
 #include <mach/platform.h>
 
-#define DEBUG_LL_UART_ADDR BCM2835_UART0_BASE
+#ifndef CONFIG_MACH_RPI_DEBUG_UART_BASE
+#define CONFIG_MACH_RPI_DEBUG_UART_BASE 0
+#endif
+
+#define DEBUG_LL_UART_ADDR CONFIG_MACH_RPI_DEBUG_UART_BASE
 
 #include <asm/debug_ll_pl011.h>
 
diff --git a/arch/arm/mach-bcm283x/include/mach/mbox.h b/arch/arm/mach-bcm283x/include/mach/mbox.h
index cd9ee1f434..2b5aea88ee 100644
--- a/arch/arm/mach-bcm283x/include/mach/mbox.h
+++ b/arch/arm/mach-bcm283x/include/mach/mbox.h
@@ -41,16 +41,15 @@
  */
 
 /* Raw mailbox HW */
-
-#define BCM2835_MBOX_PHYSADDR		(BCM2835_ARM_BASE + 0x880)
-
-struct bcm2835_mbox_regs {
-	u32 read;
-	u32 rsvd0[5];
-	u32 status;
-	u32 config;
-	u32 write;
-};
+#define ARM_0_MAIL0	0x00
+#define ARM_0_MAIL1	0x20
+
+#define MAIL0_RD	(ARM_0_MAIL0 + 0x00)
+#define MAIL0_POL	(ARM_0_MAIL0 + 0x10)
+#define MAIL0_STA	(ARM_0_MAIL0 + 0x18)
+#define MAIL0_CNF	(ARM_0_MAIL0 + 0x1C)
+#define MAIL1_WRT	(ARM_0_MAIL1 + 0x00)
+#define MAIL1_STA	(ARM_0_MAIL1 + 0x18)
 
 #define BCM2835_MBOX_STATUS_WR_FULL	0x80000000
 #define BCM2835_MBOX_STATUS_RD_EMPTY	0x40000000
diff --git a/arch/arm/mach-bcm283x/include/mach/platform.h b/arch/arm/mach-bcm283x/include/mach/platform.h
index 3b73831aa5..80b529a46f 100644
--- a/arch/arm/mach-bcm283x/include/mach/platform.h
+++ b/arch/arm/mach-bcm283x/include/mach/platform.h
@@ -28,31 +28,7 @@
  * This file is manually generated.
  */
 
-#ifdef CONFIG_ARCH_BCM2835
-#define BCM2835_PERI_BASE	0x20000000
-#define BCM2835_CACHELINE_SIZE	32
-#elif defined CONFIG_ARCH_BCM2836
-#define BCM2835_PERI_BASE	0x3f000000
 #define BCM2835_CACHELINE_SIZE	64
-#else
-#error "no CONFIG_ARCH_BCM283X defined"
-#endif
-
-#define BCM2835_ST_BASE		(BCM2835_PERI_BASE + 0x3000)	/* System Timer */
-#define BCM2835_DMA_BASE	(BCM2835_PERI_BASE + 0x7000)	/* DMA controller */
-#define BCM2835_ARM_BASE	(BCM2835_PERI_BASE + 0xB000)	/* BCM2708 ARM control block */
-#define BCM2835_PM_BASE		(BCM2835_PERI_BASE + 0x100000)	/* Power Management, Reset controller and Watchdog registers */
-#define BCM2835_GPIO_BASE	(BCM2835_PERI_BASE + 0x200000)	/* GPIO */
-#define BCM2835_UART0_BASE	(BCM2835_PERI_BASE + 0x201000)	/* Uart 0 */
-#define BCM2835_MMCI0_BASE	(BCM2835_PERI_BASE + 0x202000)	/* MMC interface */
-#define BCM2835_SPI0_BASE	(BCM2835_PERI_BASE + 0x204000)	/* SPI0 */
-#define BCM2835_BSC0_BASE	(BCM2835_PERI_BASE + 0x205000)	/* BSC0 I2C/TWI */
-#define BCM2835_UART1_BASE	(BCM2835_PERI_BASE + 0x215000)	/* Uart 1 */
-#define BCM2835_EMMC_BASE	(BCM2835_PERI_BASE + 0x300000)	/* eMMC interface */
-#define BCM2835_SMI_BASE	(BCM2835_PERI_BASE + 0x600000)	/* SMI */
-#define BCM2835_BSC1_BASE	(BCM2835_PERI_BASE + 0x804000)	/* BSC1 I2C/TWI */
-#define BCM2835_USB_BASE	(BCM2835_PERI_BASE + 0x980000)	/* DTC_OTG USB controller */
-#define BCM2835_MCORE_BASE	(BCM2835_PERI_BASE + 0x0000)	/* Fake frame buffer device (actually the multicore sync block*/
 
 #endif
 
diff --git a/arch/arm/mach-bcm283x/include/mach/wd.h b/arch/arm/mach-bcm283x/include/mach/wd.h
index ad8b762d96..cdd22d48c0 100644
--- a/arch/arm/mach-bcm283x/include/mach/wd.h
+++ b/arch/arm/mach-bcm283x/include/mach/wd.h
@@ -21,9 +21,9 @@
 /*
  * Watchdog
  */
-#define PM_RSTC		(BCM2835_PM_BASE+0x1c)
-#define PM_RSTS		(BCM2835_PM_BASE+0x20)
-#define PM_WDOG		(BCM2835_PM_BASE+0x24)
+#define PM_RSTC		0x1c
+#define PM_RSTS		0x20
+#define PM_WDOG		0x24
 
 #define PM_WDOG_RESET				0000000000
 #define PM_PASSWORD				0x5a000000
diff --git a/arch/arm/mach-bcm283x/mbox.c b/arch/arm/mach-bcm283x/mbox.c
index 9d69bc8ea7..b295993359 100644
--- a/arch/arm/mach-bcm283x/mbox.c
+++ b/arch/arm/mach-bcm283x/mbox.c
@@ -6,20 +6,21 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#include <asm/io.h>
-#include <common.h>
 #include <clock.h>
+#include <common.h>
 #include <dma.h>
+#include <init.h>
+#include <io.h>
 
 #include <mach/mbox.h>
 
 #define TIMEOUT (MSECOND * 1000)
 
+static void __iomem *mbox_base;
+
 static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
 					u32 *recv)
 {
-	struct bcm2835_mbox_regs __iomem *regs =
-		(struct bcm2835_mbox_regs *)BCM2835_MBOX_PHYSADDR;
 	uint64_t starttime = get_time_ns();
 	u32 send = virt_to_phys(buffer);
 	u32 val;
@@ -31,19 +32,19 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
 
 	/* Drain any stale responses */
 	for (;;) {
-		val = readl(&regs->status);
+		val = readl(mbox_base + MAIL0_STA);
 		if (val & BCM2835_MBOX_STATUS_RD_EMPTY)
 			break;
 		if (is_timeout(starttime, TIMEOUT)) {
 			printf("mbox: Timeout draining stale responses\n");
 			return -ETIMEDOUT;
 		}
-		val = readl(&regs->read);
+		val = readl(mbox_base + MAIL0_RD);
 	}
 
 	/* Wait for space to send */
 	for (;;) {
-		val = readl(&regs->status);
+		val = readl(mbox_base + MAIL0_STA);
 		if (!(val & BCM2835_MBOX_STATUS_WR_FULL))
 			break;
 		if (is_timeout(starttime, TIMEOUT)) {
@@ -57,11 +58,11 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
 	debug("mbox: TX raw: 0x%08x\n", val);
 	dma_sync_single_for_device((unsigned long)send, buffer->buf_size,
 				   DMA_BIDIRECTIONAL);
-	writel(val, &regs->write);
+	writel(val, mbox_base + MAIL1_WRT);
 
 	/* Wait for the response */
 	for (;;) {
-		val = readl(&regs->status);
+		val = readl(mbox_base + MAIL0_STA);
 		if (!(val & BCM2835_MBOX_STATUS_RD_EMPTY))
 			break;
 		if (is_timeout(starttime, TIMEOUT)) {
@@ -71,7 +72,7 @@ static int bcm2835_mbox_call_raw(u32 chan, struct bcm2835_mbox_hdr *buffer,
 	}
 
 	/* Read the response */
-	val = readl(&regs->read);
+	val = readl(mbox_base + MAIL0_RD);
 	debug("mbox: RX raw: 0x%08x\n", val);
 	dma_sync_single_for_cpu((unsigned long)send, buffer->buf_size,
 				DMA_BIDIRECTIONAL);
@@ -152,3 +153,37 @@ int bcm2835_mbox_call_prop(u32 chan, struct bcm2835_mbox_hdr *buffer)
 
 	return 0;
 }
+
+static int bcm2835_mbox_probe(struct device_d *dev)
+{
+	struct resource *iores;
+
+	iores = dev_request_mem_resource(dev, 0);
+	if (IS_ERR(iores)) {
+		dev_err(dev, "could not get memory region\n");
+		return PTR_ERR(iores);
+	}
+	mbox_base = IOMEM(iores->start);
+
+	return 0;
+}
+
+static __maybe_unused struct of_device_id bcm2835_mbox_dt_ids[] = {
+	{
+		.compatible = "brcm,bcm2835-mbox",
+	}, {
+		/* sentinel */
+	},
+};
+
+static struct driver_d bcm2835_mbox_driver = {
+	.name		= "bcm2835_mbox",
+	.of_compatible	= DRV_OF_COMPAT(bcm2835_mbox_dt_ids),
+	.probe		= bcm2835_mbox_probe,
+};
+
+static int __init bcm2835_mbox_init(void)
+{
+	return platform_driver_register(&bcm2835_mbox_driver);
+}
+core_initcall(bcm2835_mbox_init);
diff --git a/arch/arm/mach-bcm283x/wd.c b/arch/arm/mach-bcm283x/wd.c
new file mode 100644
index 0000000000..5a5188fd2e
--- /dev/null
+++ b/arch/arm/mach-bcm283x/wd.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2017 Pengutronix, Lucas Stach <l.stach@pengutronix.de>
+ *
+ * Based on code from  Carlo Caione <carlo@carlocaione.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#include <common.h>
+#include <init.h>
+#include <io.h>
+#include <restart.h>
+
+#include <mach/wd.h>
+
+static void __iomem *wd_base;
+
+#define RESET_TIMEOUT 10
+
+static void __noreturn bcm2835_restart_soc(struct restart_handler *rst)
+{
+	uint32_t rstc;
+
+	rstc = readl(wd_base + PM_RSTC);
+	rstc &= ~PM_RSTC_WRCFG_SET;
+	rstc |= PM_RSTC_WRCFG_FULL_RESET;
+	writel(PM_PASSWORD | RESET_TIMEOUT, wd_base +  PM_WDOG);
+	writel(PM_PASSWORD | rstc, wd_base + PM_RSTC);
+
+	hang();
+}
+
+static int bcm2835_wd_probe(struct device_d *dev)
+{
+	struct resource *iores;
+
+	iores = dev_request_mem_resource(dev, 0);
+	if (IS_ERR(iores)) {
+		dev_err(dev, "could not get memory region\n");
+		return PTR_ERR(iores);
+	}
+	wd_base = IOMEM(iores->start);
+
+	restart_handler_register_fn(bcm2835_restart_soc);
+
+	return 0;
+}
+
+static __maybe_unused struct of_device_id bcm2835_wd_dt_ids[] = {
+	{
+		.compatible = "brcm,bcm2835-pm-wdt",
+	}, {
+		/* sentinel */
+	},
+};
+
+static struct driver_d bcm2835_wd_driver = {
+	.name		= "bcm2835_wd",
+	.of_compatible	= DRV_OF_COMPAT(bcm2835_wd_dt_ids),
+	.probe		= bcm2835_wd_probe,
+};
+
+static int __init bcm2835_wd_init(void)
+{
+	return platform_driver_register(&bcm2835_wd_driver);
+}
+device_initcall(bcm2835_wd_init);
diff --git a/drivers/clocksource/bcm2835.c b/drivers/clocksource/bcm2835.c
index b5831d5f10..9130a4b14f 100644
--- a/drivers/clocksource/bcm2835.c
+++ b/drivers/clocksource/bcm2835.c
@@ -44,24 +44,33 @@ static int bcm2835_cs_probe(struct device_d *dev)
 {
 	struct resource *iores;
 	static struct clk *stc_clk;
-	u32 rate;
+	u32 rate = 0;
 	int ret;
 
-	stc_clk = clk_get(dev, NULL);
-	if (IS_ERR(stc_clk)) {
-		ret = PTR_ERR(stc_clk);
-		dev_err(dev, "clock not found: %d\n", ret);
-		return ret;
-	}
+	/* try to read rate from DT property first */
+	if (IS_ENABLED(CONFIG_OFTREE))
+		of_property_read_u32(dev->device_node, "clock-frequency",
+				     &rate);
+
+	/* if rate is still empty, try to get rate from clk */
+	if (!rate) {
+		stc_clk = clk_get(dev, NULL);
+		if (IS_ERR(stc_clk)) {
+			ret = PTR_ERR(stc_clk);
+			dev_err(dev, "clock not found: %d\n", ret);
+			return ret;
+		}
+
+		ret = clk_enable(stc_clk);
+		if (ret) {
+			dev_err(dev, "clock failed to enable: %d\n", ret);
+			clk_put(stc_clk);
+			return ret;
+		}
 
-	ret = clk_enable(stc_clk);
-	if (ret) {
-		dev_err(dev, "clock failed to enable: %d\n", ret);
-		clk_put(stc_clk);
-		return ret;
+		rate = clk_get_rate(stc_clk);
 	}
 
-	rate = clk_get_rate(stc_clk);
 	iores = dev_request_mem_resource(dev, 0);
 	if (IS_ERR(iores))
 		return PTR_ERR(iores);
diff --git a/drivers/mci/mci-bcm2835.c b/drivers/mci/mci-bcm2835.c
index c7a8cf972a..daf771934a 100644
--- a/drivers/mci/mci-bcm2835.c
+++ b/drivers/mci/mci-bcm2835.c
@@ -543,9 +543,18 @@ static int bcm2835_mci_probe(struct device_d *hw_dev)
 	return mci_register(&host->mci);
 }
 
+static __maybe_unused struct of_device_id bcm2835_mci_compatible[] = {
+	{
+		.compatible = "brcm,bcm2835-sdhci",
+	}, {
+		/* sentinel */
+	}
+};
+
 static struct driver_d bcm2835_mci_driver = {
 	.name = "bcm2835_mci",
 	.probe = bcm2835_mci_probe,
+	.of_compatible = DRV_OF_COMPAT(bcm2835_mci_compatible),
 };
 
 static int bcm2835_mci_add(void)
diff --git a/images/Makefile b/images/Makefile
index 0537af1f6d..68876e5de9 100644
--- a/images/Makefile
+++ b/images/Makefile
@@ -103,6 +103,7 @@ board = $(srctree)/arch/$(ARCH)/boards
 objboard = $(objtree)/arch/$(ARCH)/boards
 
 include $(srctree)/images/Makefile.am33xx
+include $(srctree)/images/Makefile.bcm283x
 include $(srctree)/images/Makefile.imx
 include $(srctree)/images/Makefile.mvebu
 include $(srctree)/images/Makefile.mxs
diff --git a/images/Makefile.bcm283x b/images/Makefile.bcm283x
new file mode 100644
index 0000000000..d59ef043f0
--- /dev/null
+++ b/images/Makefile.bcm283x
@@ -0,0 +1,11 @@
+#
+# barebox image generation Makefile for BCM283x images
+#
+
+pblx-$(CONFIG_MACH_RPI) += start_raspberry_pi1
+FILE_barebox-raspberry-pi-1.img = start_raspberry_pi1.pblx
+image-$(CONFIG_MACH_RPI) += barebox-raspberry-pi-1.img
+
+pblx-$(CONFIG_MACH_RPI2) += start_raspberry_pi2
+FILE_barebox-raspberry-pi-2.img = start_raspberry_pi2.pblx
+image-$(CONFIG_MACH_RPI2) += barebox-raspberry-pi-2.img