[PATCH v3 0/6] DT support for AT91RM9200

[PATCH v3 0/6] DT support for AT91RM9200

[Joachim Eastwood]

Patch 1 is a fix for a build failure which can happen if board-dt is enabled when no AT91SAM machines are enabled.

Patch 2 adds DT support to the AT91RM9200 system timer. Based on AT91 PIT patch by Jean-Christophe PLAGNIOL-VILLARD.

Patch 3 adds clock lookups for DT.

Patch 4 adds a new board for RM9200 DT support.

Patch 5-6 adds the base devicetree for AT91RM9200 and support for AT91RM9200-EK board.


I don't have a AT91RM9200-EK to test on but I was able to boot at91rm9200ek.dts on my custom board using a initrd. As far as I can tell pinctrl, usart and ohci all work.

Patches based on linux-next.


Joachim Eastwood (6):
  ARM: AT91: Fix build failure on board-dt
  ARM: AT91: Add DT support to AT91RM9200 System Timer
  ARM: AT91: Add usart/tc/pio/ohci DT clock lookup to AT91RM9200
  ARM: AT91: Add AT91RM9200 DT board
  ARM: AT91: Add AT91RM9200 device tree
  ARM: AT91: Add AT91RM9200EK board device tree

 .../devicetree/bindings/arm/atmel-at91.txt         |   6 +
 arch/arm/boot/dts/Makefile                         |   2 +
 arch/arm/boot/dts/at91rm9200.dtsi                  | 333 +++++++++++++++++++++
 arch/arm/boot/dts/at91rm9200ek.dts                 |  78 +++++
 arch/arm/mach-at91/Kconfig                         |   9 +
 arch/arm/mach-at91/Makefile                        |   1 +
 arch/arm/mach-at91/at91rm9200.c                    |  18 ++
 arch/arm/mach-at91/at91rm9200_time.c               |  63 +++-
 arch/arm/mach-at91/board-rm9200-dt.c               |  59 ++++
 arch/arm/mach-at91/generic.h                       |   1 +
 arch/arm/mach-at91/setup.c                         |  14 +
 11 files changed, 582 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm/boot/dts/at91rm9200.dtsi
 create mode 100644 arch/arm/boot/dts/at91rm9200ek.dts
 create mode 100644 arch/arm/mach-at91/board-rm9200-dt.c

-- 
1.8.0

[PATCH v3 1/6] ARM: AT91: Fix build failure on board-dt

[Joachim Eastwood]

We need CONFIG_SOC_AT91SAM9 to get the at91sam926x_timer
symbol used in board-dt.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
---
 arch/arm/mach-at91/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 9285768..cc7a15c 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -492,6 +492,7 @@ comment "Generic Board Type"
 
 config MACH_AT91SAM_DT
 	bool "Atmel AT91SAM Evaluation Kits with device-tree support"
+	depends on SOC_AT91SAM9
 	select USE_OF
 	help
 	  Select this if you want to experiment device-tree with
-- 
1.8.0

[PATCH v3 2/6] ARM: AT91: Add DT support to AT91RM9200 System Timer

[Joachim Eastwood]

Based on AT91 PIT DT patch from Jean-Christophe PLAGNIOL-VILLARD.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
---
 .../devicetree/bindings/arm/atmel-at91.txt         |  6 +++
 arch/arm/mach-at91/at91rm9200_time.c               | 63 +++++++++++++++++++++-
 2 files changed, 67 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index d187e9f..1196290 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt
@@ -7,6 +7,12 @@ PIT Timer required properties:
 - interrupts: Should contain interrupt for the PIT which is the IRQ line
   shared across all System Controller members.
 
+System Timer (ST) required properties:
+- compatible: Should be "atmel,at91rm9200-st"
+- reg: Should contain registers location and length
+- interrupts: Should contain interrupt for the ST which is the IRQ line
+  shared across all System Controller members.
+
 TC/TCLIB Timer required properties:
 - compatible: Should be "atmel,<chip>-tcb".
   <chip> can be "at91rm9200" or "at91sam9x5"
diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c
index aaa443b..cafe988 100644
--- a/arch/arm/mach-at91/at91rm9200_time.c
+++ b/arch/arm/mach-at91/at91rm9200_time.c
@@ -24,6 +24,9 @@
 #include <linux/irq.h>
 #include <linux/clockchips.h>
 #include <linux/export.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include <asm/mach/time.h>
 
@@ -91,7 +94,8 @@ static irqreturn_t at91rm9200_timer_interrupt(int irq, void *dev_id)
 static struct irqaction at91rm9200_timer_irq = {
 	.name		= "at91_tick",
 	.flags		= IRQF_SHARED | IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
-	.handler	= at91rm9200_timer_interrupt
+	.handler	= at91rm9200_timer_interrupt,
+	.irq		= NR_IRQS_LEGACY + AT91_ID_SYS,
 };
 
 static cycle_t read_clk32k(struct clocksource *cs)
@@ -179,8 +183,60 @@ static struct clock_event_device clkevt = {
 void __iomem *at91_st_base;
 EXPORT_SYMBOL_GPL(at91_st_base);
 
+#ifdef CONFIG_OF
+static struct of_device_id at91rm9200_st_timer_ids[] = {
+	{ .compatible = "atmel,at91rm9200-st" },
+	{ /* sentinel */ }
+};
+
+static int __init of_at91rm9200_st_init(void)
+{
+	struct device_node *np;
+	int ret;
+
+	np = of_find_matching_node(NULL, at91rm9200_st_timer_ids);
+	if (!np)
+		goto err;
+
+	at91_st_base = of_iomap(np, 0);
+	if (!at91_st_base)
+		goto node_err;
+
+	/* Get the interrupts property */
+	ret = irq_of_parse_and_map(np, 0);
+	if (!ret)
+		goto ioremap_err;
+	at91rm9200_timer_irq.irq = ret;
+
+	of_node_put(np);
+
+	return 0;
+
+ioremap_err:
+	iounmap(at91_st_base);
+node_err:
+	of_node_put(np);
+err:
+	return -EINVAL;
+}
+#else
+static int __init of_at91rm9200_st_init(void)
+{
+	return -EINVAL;
+}
+#endif
+
 void __init at91rm9200_ioremap_st(u32 addr)
 {
+#ifdef CONFIG_OF
+	struct device_node *np;
+
+	np = of_find_matching_node(NULL, at91rm9200_st_timer_ids);
+	if (np) {
+		of_node_put(np);
+		return;
+	}
+#endif
 	at91_st_base = ioremap(addr, 256);
 	if (!at91_st_base)
 		panic("Impossible to ioremap ST\n");
@@ -191,13 +247,16 @@ void __init at91rm9200_ioremap_st(u32 addr)
  */
 void __init at91rm9200_timer_init(void)
 {
+	/* For device tree enabled device: initialize here */
+	of_at91rm9200_st_init();
+
 	/* Disable all timer interrupts, and clear any pending ones */
 	at91_st_write(AT91_ST_IDR,
 		AT91_ST_PITS | AT91_ST_WDOVF | AT91_ST_RTTINC | AT91_ST_ALMS);
 	at91_st_read(AT91_ST_SR);
 
 	/* Make IRQs happen for the system timer */
-	setup_irq(NR_IRQS_LEGACY + AT91_ID_SYS, &at91rm9200_timer_irq);
+	setup_irq(at91rm9200_timer_irq.irq, &at91rm9200_timer_irq);
 
 	/* The 32KiHz "Slow Clock" (tick every 30517.58 nanoseconds) is used
 	 * directly for the clocksource and all clockevents, after adjusting
-- 
1.8.0

[PATCH v3 3/6] ARM: AT91: Add usart/tc/pio/ohci DT clock lookup to AT91RM9200

[Joachim Eastwood]

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
---
 arch/arm/mach-at91/at91rm9200.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index a3e4710..67bd9cd 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -188,12 +188,30 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
 	CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
 	CLKDEV_CON_DEV_ID(NULL, "i2c-at91rm9200.0", &twi_clk),
+	/* usart lookup table for DT entries */
+	CLKDEV_CON_DEV_ID("usart", "fffff200.serial", &mck),
+	CLKDEV_CON_DEV_ID("usart", "fffc0000.serial", &usart0_clk),
+	CLKDEV_CON_DEV_ID("usart", "fffc4000.serial", &usart1_clk),
+	CLKDEV_CON_DEV_ID("usart", "fffc8000.serial", &usart2_clk),
+	CLKDEV_CON_DEV_ID("usart", "fffcc000.serial", &usart3_clk),
+	/* tc lookup table for DT entries */
+	CLKDEV_CON_DEV_ID("t0_clk", "fffa0000.timer", &tc0_clk),
+	CLKDEV_CON_DEV_ID("t1_clk", "fffa0000.timer", &tc1_clk),
+	CLKDEV_CON_DEV_ID("t2_clk", "fffa0000.timer", &tc2_clk),
+	CLKDEV_CON_DEV_ID("t0_clk", "fffa4000.timer", &tc3_clk),
+	CLKDEV_CON_DEV_ID("t1_clk", "fffa4000.timer", &tc4_clk),
+	CLKDEV_CON_DEV_ID("t2_clk", "fffa4000.timer", &tc5_clk),
+	CLKDEV_CON_DEV_ID("hclk", "300000.ohci", &ohci_clk),
 	/* fake hclk clock */
 	CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
 	CLKDEV_CON_ID("pioA", &pioA_clk),
 	CLKDEV_CON_ID("pioB", &pioB_clk),
 	CLKDEV_CON_ID("pioC", &pioC_clk),
 	CLKDEV_CON_ID("pioD", &pioD_clk),
+	CLKDEV_CON_DEV_ID(NULL, "fffff400.gpio", &pioA_clk),
+	CLKDEV_CON_DEV_ID(NULL, "fffff600.gpio", &pioB_clk),
+	CLKDEV_CON_DEV_ID(NULL, "fffff800.gpio", &pioC_clk),
+	CLKDEV_CON_DEV_ID(NULL, "fffffa00.gpio", &pioD_clk),
 };
 
 static struct clk_lookup usart_clocks_lookups[] = {
-- 
1.8.0

[PATCH v3 4/6] ARM: AT91: Add AT91RM9200 DT board

[Joachim Eastwood]

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
---
 arch/arm/mach-at91/Kconfig           |  8 +++++
 arch/arm/mach-at91/Makefile          |  1 +
 arch/arm/mach-at91/board-rm9200-dt.c | 59 ++++++++++++++++++++++++++++++++++++
 arch/arm/mach-at91/generic.h         |  1 +
 arch/arm/mach-at91/setup.c           | 14 +++++++++
 5 files changed, 83 insertions(+)
 create mode 100644 arch/arm/mach-at91/board-rm9200-dt.c

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index cc7a15c..958358c 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -490,6 +490,14 @@ endif
 
 comment "Generic Board Type"
 
+config MACH_AT91RM9200_DT
+	bool "Atmel AT91RM9200 Evaluation Kits with device-tree support"
+	depends on SOC_AT91RM9200
+	select USE_OF
+	help
+	  Select this if you want to experiment device-tree with
+	  an Atmel RM9200 Evaluation Kit.
+
 config MACH_AT91SAM_DT
 	bool "Atmel AT91SAM Evaluation Kits with device-tree support"
 	depends on SOC_AT91SAM9
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 3bb7a51..b38a1dc 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -88,6 +88,7 @@ obj-$(CONFIG_MACH_SNAPPER_9260)	+= board-snapper9260.o
 obj-$(CONFIG_MACH_AT91SAM9M10G45EK) += board-sam9m10g45ek.o
 
 # AT91SAM board with device-tree
+obj-$(CONFIG_MACH_AT91RM9200_DT) += board-rm9200-dt.o
 obj-$(CONFIG_MACH_AT91SAM_DT) += board-dt.o
 
 # AT91X40 board-specific support
diff --git a/arch/arm/mach-at91/board-rm9200-dt.c b/arch/arm/mach-at91/board-rm9200-dt.c
new file mode 100644
index 0000000..47e91d9
--- /dev/null
+++ b/arch/arm/mach-at91/board-rm9200-dt.c
@@ -0,0 +1,59 @@
+/*
+ *  Setup code for AT91RM9200 Evaluation Kits with Device Tree support
+ *
+ *  Copyright (C) 2011 Atmel,
+ *                2011 Nicolas Ferre <nicolas.ferre@atmel.com>
+ *                2012 Joachim Eastwood <manabian@gmail.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+
+#include <mach/board.h>
+#include <mach/at91_aic.h>
+
+#include <asm/setup.h>
+#include <asm/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include "generic.h"
+
+
+static const struct of_device_id irq_of_match[] __initconst = {
+	{ .compatible = "atmel,at91rm9200-aic", .data = at91_aic_of_init },
+	{ /*sentinel*/ }
+};
+
+static void __init at91rm9200_dt_init_irq(void)
+{
+	of_irq_init(irq_of_match);
+}
+
+static void __init at91rm9200_dt_device_init(void)
+{
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char *at91rm9200_dt_board_compat[] __initdata = {
+	"atmel,at91rm9200",
+	NULL
+};
+
+DT_MACHINE_START(at91rm9200_dt, "Atmel AT91RM9200 (Device Tree)")
+	.timer		= &at91rm9200_timer,
+	.map_io		= at91_map_io,
+	.handle_irq	= at91_aic_handle_irq,
+	.init_early	= at91rm9200_dt_initialize,
+	.init_irq	= at91rm9200_dt_init_irq,
+	.init_machine	= at91rm9200_dt_device_init,
+	.dt_compat	= at91rm9200_dt_board_compat,
+MACHINE_END
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index b62f560e..fc593d6 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -20,6 +20,7 @@ extern void __init at91_init_sram(int bank, unsigned long base,
 extern void __init at91rm9200_set_type(int type);
 extern void __init at91_initialize(unsigned long main_clock);
 extern void __init at91x40_initialize(unsigned long main_clock);
+extern void __init at91rm9200_dt_initialize(void);
 extern void __init at91_dt_initialize(void);
 
  /* Interrupts */
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index 80f4bfd..19cdd0b 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -339,6 +339,7 @@ static void at91_dt_rstc(void)
 }
 
 static struct of_device_id ramc_ids[] = {
+	{ .compatible = "atmel,at91rm9200-sdramc" },
 	{ .compatible = "atmel,at91sam9260-sdramc" },
 	{ .compatible = "atmel,at91sam9g45-ddramc" },
 	{ /*sentinel*/ }
@@ -437,6 +438,19 @@ end:
 	of_node_put(np);
 }
 
+void __init at91rm9200_dt_initialize(void)
+{
+	at91_dt_ramc();
+
+	/* Init clock subsystem */
+	at91_dt_clock_init();
+
+	/* Register the processor-specific clocks */
+	at91_boot_soc.register_clocks();
+
+	at91_boot_soc.init();
+}
+
 void __init at91_dt_initialize(void)
 {
 	at91_dt_rstc();
-- 
1.8.0

[PATCH v3 5/6] ARM: AT91: Add AT91RM9200 device tree

[Joachim Eastwood]

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
---
 arch/arm/boot/dts/at91rm9200.dtsi | 333 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 333 insertions(+)
 create mode 100644 arch/arm/boot/dts/at91rm9200.dtsi

diff --git a/arch/arm/boot/dts/at91rm9200.dtsi b/arch/arm/boot/dts/at91rm9200.dtsi
new file mode 100644
index 0000000..5c4f91d
--- /dev/null
+++ b/arch/arm/boot/dts/at91rm9200.dtsi
@@ -0,0 +1,333 @@
+/*
+ * at91rm9200.dtsi - Device Tree Include file for AT91RM9200 family SoC
+ *
+ *  Copyright (C) 2011 Atmel,
+ *                2011 Nicolas Ferre <nicolas.ferre@atmel.com>,
+ *                2012 Joachim Eastwood <manabian@gmail.com>
+ *
+ * Based on at91sam9260.dtsi
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+/include/ "skeleton.dtsi"
+
+/ {
+	model = "Atmel AT91RM9200 family SoC";
+	compatible = "atmel,at91rm9200";
+	interrupt-parent = <&aic>;
+
+	aliases {
+		serial0 = &dbgu;
+		serial1 = &usart0;
+		serial2 = &usart1;
+		serial3 = &usart2;
+		serial4 = &usart3;
+		gpio0 = &pioA;
+		gpio1 = &pioB;
+		gpio2 = &pioC;
+		gpio3 = &pioD;
+		tcb0 = &tcb0;
+		tcb1 = &tcb1;
+	};
+	cpus {
+		cpu at 0 {
+			compatible = "arm,arm920t";
+		};
+	};
+
+	memory {
+		reg = <0x20000000 0x04000000>;
+	};
+
+	ahb {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		apb {
+			compatible = "simple-bus";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+
+			aic: interrupt-controller at fffff000 {
+				#interrupt-cells = <3>;
+				compatible = "atmel,at91rm9200-aic";
+				interrupt-controller;
+				reg = <0xfffff000 0x200>;
+				atmel,external-irqs = <25 26 27 28 29 30 31>;
+			};
+
+			ramc0: ramc at ffffff00 {
+				compatible = "atmel,at91rm9200-sdramc";
+				reg = <0xffffff00 0x100>;
+			};
+
+			pmc: pmc at fffffc00 {
+				compatible = "atmel,at91rm9200-pmc";
+				reg = <0xfffffc00 0x100>;
+			};
+
+			st: timer at fffffd00 {
+				compatible = "atmel,at91rm9200-st";
+				reg = <0xfffffd00 0x100>;
+				interrupts = <1 4 7>;
+			};
+
+			tcb0: timer at fffa0000 {
+				compatible = "atmel,at91rm9200-tcb";
+				reg = <0xfffa0000 0x100>;
+				interrupts = <17 4 0 18 4 0 19 4 0>;
+			};
+
+			tcb1: timer at fffa4000 {
+				compatible = "atmel,at91rm9200-tcb";
+				reg = <0xfffa4000 0x100>;
+				interrupts = <20 4 0 21 4 0 22 4 0>;
+			};
+
+			pinctrl at fffff400 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+				compatible = "atmel,at91rm9200-pinctrl", "simple-bus";
+				ranges = <0xfffff400 0xfffff400 0x800>;
+
+				atmel,mux-mask = <
+					/*    A         B     */
+					 0xffffffff 0xffffffff  /* pioA */
+					 0xffffffff 0x083fffff  /* pioB */
+					 0xffff3fff 0x00000000  /* pioC */
+					 0x03ff87ff 0x0fffff80  /* pioD */
+					>;
+
+				/* shared pinctrl settings */
+				dbgu {
+					pinctrl_dbgu: dbgu-0 {
+						atmel,pins =
+							<0 30 0x1 0x0	/* PA30 periph A */
+							 0 31 0x1 0x1>;	/* PA31 periph with pullup */
+					};
+				};
+
+				uart0 {
+					pinctrl_uart0: uart0-0 {
+						atmel,pins =
+							<0 17 0x1 0x0	/* PA17 periph A */
+							 0 18 0x1 0x0>;	/* PA18 periph A */
+					};
+
+					pinctrl_uart0_rts_cts: uart0_rts_cts-0 {
+						atmel,pins =
+							<0 20 0x1 0x0	/* PA20 periph A */
+							 0 21 0x1 0x0>;	/* PA21 periph A */
+					};
+				};
+
+				uart1 {
+					pinctrl_uart1: uart1-0 {
+						atmel,pins =
+							<1 20 0x1 0x1	/* PB20 periph A with pullup */
+							 1 21 0x1 0x0>;	/* PB21 periph A */
+					};
+
+					pinctrl_uart1_rts_cts: uart1_rts_cts-0 {
+						atmel,pins =
+							<1 24 0x1 0x0	/* PB24 periph A */
+							 1 26 0x1 0x0>;	/* PB26 periph A */
+					};
+
+					pinctrl_uart1_dtr_dsr: uart1_dtr_dsr-0 {
+						atmel,pins =
+							<1 19 0x1 0x0	/* PB19 periph A */
+							 1 25 0x1 0x0>;	/* PB25 periph A */
+					};
+
+					pinctrl_uart1_dcd: uart1_dcd-0 {
+						atmel,pins =
+							<1 23 0x1 0x0>;	/* PB23 periph A */
+					};
+
+					pinctrl_uart1_ri: uart1_ri-0 {
+						atmel,pins =
+							<1 18 0x1 0x0>;	/* PB18 periph A */
+					};
+				};
+
+				uart2 {
+					pinctrl_uart2: uart2-0 {
+						atmel,pins =
+							<0 22 0x1 0x0	/* PA22 periph A */
+							 0 23 0x1 0x1>;	/* PA23 periph A with pullup */
+					};
+
+					pinctrl_uart2_rts_cts: uart2_rts_cts-0 {
+						atmel,pins =
+							<0 30 0x2 0x0	/* PA30 periph B */
+							 0 31 0x2 0x0>;	/* PA31 periph B */
+					};
+				};
+
+				uart3 {
+					pinctrl_uart3: uart3-0 {
+						atmel,pins =
+							<0 5 0x2 0x1	/* PA5 periph B with pullup */
+							 0 6 0x2 0x0>;	/* PA6 periph B */
+					};
+
+					pinctrl_uart3_rts_cts: uart3_rts_cts-0 {
+						atmel,pins =
+							<1 0 0x2 0x0	/* PB0 periph B */
+							 1 1 0x2 0x0>;	/* PB1 periph B */
+					};
+				};
+
+				nand {
+					pinctrl_nand: nand-0 {
+						atmel,pins =
+							<2 2 0x0 0x1	/* PC2 gpio RDY pin pull_up */
+							 1 1 0x0 0x1>;	/* PB1 gpio CD pin pull_up */
+					};
+				};
+
+				pioA: gpio at fffff400 {
+					compatible = "atmel,at91rm9200-gpio";
+					reg = <0xfffff400 0x200>;
+					interrupts = <2 4 1>;
+					#gpio-cells = <2>;
+					gpio-controller;
+					interrupt-controller;
+					#interrupt-cells = <2>;
+				};
+
+				pioB: gpio at fffff600 {
+					compatible = "atmel,at91rm9200-gpio";
+					reg = <0xfffff600 0x200>;
+					interrupts = <3 4 1>;
+					#gpio-cells = <2>;
+					gpio-controller;
+					interrupt-controller;
+					#interrupt-cells = <2>;
+				};
+
+				pioC: gpio at fffff800 {
+					compatible = "atmel,at91rm9200-gpio";
+					reg = <0xfffff800 0x200>;
+					interrupts = <4 4 1>;
+					#gpio-cells = <2>;
+					gpio-controller;
+					interrupt-controller;
+					#interrupt-cells = <2>;
+				};
+
+				pioD: gpio at fffffa00 {
+					compatible = "atmel,at91rm9200-gpio";
+					reg = <0xfffffa00 0x200>;
+					interrupts = <5 4 1>;
+					#gpio-cells = <2>;
+					gpio-controller;
+					interrupt-controller;
+					#interrupt-cells = <2>;
+				};
+			};
+
+			dbgu: serial at fffff200 {
+				compatible = "atmel,at91rm9200-usart";
+				reg = <0xfffff200 0x200>;
+				interrupts = <1 4 7>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_dbgu>;
+				status = "disabled";
+			};
+
+			usart0: serial at fffc0000 {
+				compatible = "atmel,at91rm9200-usart";
+				reg = <0xfffc0000 0x200>;
+				interrupts = <6 4 5>;
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_uart0>;
+				status = "disabled";
+			};
+
+			usart1: serial at fffc4000 {
+				compatible = "atmel,at91rm9200-usart";
+				reg = <0xfffc4000 0x200>;
+				interrupts = <7 4 5>;
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_uart1>;
+				status = "disabled";
+			};
+
+			usart2: serial at fffc8000 {
+				compatible = "atmel,at91rm9200-usart";
+				reg = <0xfffc8000 0x200>;
+				interrupts = <8 4 5>;
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_uart2>;
+				status = "disabled";
+			};
+
+			usart3: serial at fffcc000 {
+				compatible = "atmel,at91rm9200-usart";
+				reg = <0xfffcc000 0x200>;
+				interrupts = <23 4 5>;
+				atmel,use-dma-rx;
+				atmel,use-dma-tx;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_uart3>;
+				status = "disabled";
+			};
+
+			usb1: gadget at fffb0000 {
+				compatible = "atmel,at91rm9200-udc";
+				reg = <0xfffb0000 0x4000>;
+				interrupts = <11 4 2>;
+				status = "disabled";
+			};
+		};
+
+		nand0: nand at 40000000 {
+			compatible = "atmel,at91rm9200-nand";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			reg = <0x40000000 0x10000000>;
+			atmel,nand-addr-offset = <21>;
+			atmel,nand-cmd-offset = <22>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_nand>;
+			nand-ecc-mode = "soft";
+			gpios = <&pioC 2 0
+				 0
+				 &pioB 1 0
+				>;
+			status = "disabled";
+		};
+
+		usb0: ohci at 00300000 {
+			compatible = "atmel,at91rm9200-ohci", "usb-ohci";
+			reg = <0x00300000 0x100000>;
+			interrupts = <23 4 2>;
+			status = "disabled";
+		};
+	};
+
+	i2c at 0 {
+		compatible = "i2c-gpio";
+		gpios = <&pioA 23 0 /* sda */
+			 &pioA 24 0 /* scl */
+			>;
+		i2c-gpio,sda-open-drain;
+		i2c-gpio,scl-open-drain;
+		i2c-gpio,delay-us = <2>;	/* ~100 kHz */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+};
-- 
1.8.0

[PATCH v3 6/6] ARM: AT91: Add AT91RM9200EK board device tree

[Joachim Eastwood]

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
---
 arch/arm/boot/dts/Makefile         |  2 +
 arch/arm/boot/dts/at91rm9200ek.dts | 78 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 arch/arm/boot/dts/at91rm9200ek.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 3bf4f53..64c4e7b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1,6 +1,8 @@
 ifeq ($(CONFIG_OF),y)
 
 # Keep at91 dtb files sorted alphabetically for each SoC
+# rm9200
+dtb-$(CONFIG_ARCH_AT91) += at91rm9200ek.dtb
 # sam9260
 dtb-$(CONFIG_ARCH_AT91) += aks-cdu.dtb
 dtb-$(CONFIG_ARCH_AT91) += ethernut5.dtb
diff --git a/arch/arm/boot/dts/at91rm9200ek.dts b/arch/arm/boot/dts/at91rm9200ek.dts
new file mode 100644
index 0000000..d8a680b
--- /dev/null
+++ b/arch/arm/boot/dts/at91rm9200ek.dts
@@ -0,0 +1,78 @@
+/*
+ * at91rm9200ek.dts - Device Tree file for Atmel AT91RM9200 evaluation kit
+ *
+ *  Copyright (C) 2012 Joachim Eastwood <manabian@gmail.com>
+ *
+ * Licensed under GPLv2 only
+ */
+/dts-v1/;
+/include/ "at91rm9200.dtsi"
+
+/ {
+	model = "Atmel AT91RM9200 evaluation kit";
+	compatible = "atmel,at91rm9200ek", "atmel,at91rm9200";
+
+	memory {
+		reg = <0x20000000 0x4000000>;
+	};
+
+	clocks {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		main_clock: clock at 0 {
+			compatible = "atmel,osc", "fixed-clock";
+			clock-frequency = <18432000>;
+		};
+	};
+
+	ahb {
+		apb {
+			dbgu: serial at fffff200 {
+				status = "okay";
+			};
+
+			usart1: serial at fffc4000 {
+				pinctrl-0 =
+						<&pinctrl_uart1
+						 &pinctrl_uart1_rts_cts
+						 &pinctrl_uart1_dtr_dsr
+						 &pinctrl_uart1_dcd
+						 &pinctrl_uart1_ri>;
+				status = "okay";
+			};
+
+			usb1: gadget at fffb0000 {
+				atmel,vbus-gpio = <&pioD 4 0>;
+				status = "okay";
+			};
+		};
+
+		usb0: ohci at 00300000 {
+			num-ports = <2>;
+			status = "okay";
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		ds2 {
+			label = "green";
+			gpios = <&pioB 0 0x1>;
+			linux,default-trigger = "mmc0";
+		};
+
+		ds4 {
+			label = "yellow";
+			gpios = <&pioB 1 0x1>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		ds6 {
+			label = "red";
+			gpios = <&pioB 2 0x1>;
+		};
+	};
+};
-- 
1.8.0

[PATCH v3 0/6] DT support for AT91RM9200

[Jean-Christophe PLAGNIOL-VILLARD]

On 19:31 Sun 28 Oct     , Joachim Eastwood wrote:
> Patch 1 is a fix for a build failure which can happen if board-dt is enabled when no AT91SAM machines are enabled.
> 
> Patch 2 adds DT support to the AT91RM9200 system timer. Based on AT91 PIT patch by Jean-Christophe PLAGNIOL-VILLARD.
> 
> Patch 3 adds clock lookups for DT.
> 
> Patch 4 adds a new board for RM9200 DT support.
> 
> Patch 5-6 adds the base devicetree for AT91RM9200 and support for AT91RM9200-EK board.
> 
> 
> I don't have a AT91RM9200-EK to test on but I was able to boot at91rm9200ek.dts on my custom board using a initrd. As far as I can tell pinctrl, usart and ohci all work.

After updating barebox to have the DT support I've tested it on rm9200ek with net support

work fine

It does not apply on my tree as I've a more patch but I'll manage the merge
conflict

Best Regards,
J.
> 
> Patches based on linux-next.
> 
> 
> Joachim Eastwood (6):
>   ARM: AT91: Fix build failure on board-dt
>   ARM: AT91: Add DT support to AT91RM9200 System Timer
>   ARM: AT91: Add usart/tc/pio/ohci DT clock lookup to AT91RM9200
>   ARM: AT91: Add AT91RM9200 DT board
>   ARM: AT91: Add AT91RM9200 device tree
>   ARM: AT91: Add AT91RM9200EK board device tree
> 
>  .../devicetree/bindings/arm/atmel-at91.txt         |   6 +
>  arch/arm/boot/dts/Makefile                         |   2 +
>  arch/arm/boot/dts/at91rm9200.dtsi                  | 333 +++++++++++++++++++++
>  arch/arm/boot/dts/at91rm9200ek.dts                 |  78 +++++
>  arch/arm/mach-at91/Kconfig                         |   9 +
>  arch/arm/mach-at91/Makefile                        |   1 +
>  arch/arm/mach-at91/at91rm9200.c                    |  18 ++
>  arch/arm/mach-at91/at91rm9200_time.c               |  63 +++-
>  arch/arm/mach-at91/board-rm9200-dt.c               |  59 ++++
>  arch/arm/mach-at91/generic.h                       |   1 +
>  arch/arm/mach-at91/setup.c                         |  14 +
>  11 files changed, 582 insertions(+), 2 deletions(-)
>  create mode 100644 arch/arm/boot/dts/at91rm9200.dtsi
>  create mode 100644 arch/arm/boot/dts/at91rm9200ek.dts
>  create mode 100644 arch/arm/mach-at91/board-rm9200-dt.c
> 
> -- 
> 1.8.0
> 

[PATCH v3 0/6] DT support for AT91RM9200

[Joachim Eastwood]

On 4 November 2012 16:52, Jean-Christophe PLAGNIOL-VILLARD
<plagnioj@jcrosoft.com> wrote:
> On 19:31 Sun 28 Oct     , Joachim Eastwood wrote:
>> Patch 1 is a fix for a build failure which can happen if board-dt is enabled when no AT91SAM machines are enabled.
>>
>> Patch 2 adds DT support to the AT91RM9200 system timer. Based on AT91 PIT patch by Jean-Christophe PLAGNIOL-VILLARD.
>>
>> Patch 3 adds clock lookups for DT.
>>
>> Patch 4 adds a new board for RM9200 DT support.
>>
>> Patch 5-6 adds the base devicetree for AT91RM9200 and support for AT91RM9200-EK board.
>>
>>
>> I don't have a AT91RM9200-EK to test on but I was able to boot at91rm9200ek.dts on my custom board using a >>initrd. As far as I can tell pinctrl, usart and ohci all work.
>
> After updating barebox to have the DT support I've tested it on rm9200ek with net support
>
> work fine

Excellent.

> It does not apply on my tree as I've a more patch but I'll manage the merge
> conflict

 Thanks for fixing it up Jean-Christophe.

regards
Joachim Eastwood

[PATCH v3 0/6] DT support for AT91RM9200

[Jean-Christophe PLAGNIOL-VILLARD]

On 18:55 Sun 04 Nov     , Joachim Eastwood wrote:
> On 4 November 2012 16:52, Jean-Christophe PLAGNIOL-VILLARD
> <plagnioj@jcrosoft.com> wrote:
> > On 19:31 Sun 28 Oct     , Joachim Eastwood wrote:
> >> Patch 1 is a fix for a build failure which can happen if board-dt is enabled when no AT91SAM machines are enabled.
> >>
> >> Patch 2 adds DT support to the AT91RM9200 system timer. Based on AT91 PIT patch by Jean-Christophe PLAGNIOL-VILLARD.
> >>
> >> Patch 3 adds clock lookups for DT.
> >>
> >> Patch 4 adds a new board for RM9200 DT support.
> >>
> >> Patch 5-6 adds the base devicetree for AT91RM9200 and support for AT91RM9200-EK board.
> >>
> >>
> >> I don't have a AT91RM9200-EK to test on but I was able to boot at91rm9200ek.dts on my custom board using a >>initrd. As far as I can tell pinctrl, usart and ohci all work.
> >
> > After updating barebox to have the DT support I've tested it on rm9200ek with net support
> >
> > work fine
> 
> Excellent.
> 
> > It does not apply on my tree as I've a more patch but I'll manage the merge
> > conflict
> 
>  Thanks for fixing it up Jean-Christophe.
I'll also fix the usb device and add missing nor flash support and emac +
pinctrl + defconfig

Best Regards,
J.

[PATCH v3 0/6] DT support for AT91RM9200

[Joachim Eastwood]

On 5 November 2012 08:28, Jean-Christophe PLAGNIOL-VILLARD
<plagnioj@jcrosoft.com> wrote:
> On 18:55 Sun 04 Nov     , Joachim Eastwood wrote:
>> On 4 November 2012 16:52, Jean-Christophe PLAGNIOL-VILLARD
>> <plagnioj@jcrosoft.com> wrote:
>> > On 19:31 Sun 28 Oct     , Joachim Eastwood wrote:
>> >> Patch 1 is a fix for a build failure which can happen if board-dt is enabled when no AT91SAM machines are enabled.
>> >>
>> >> Patch 2 adds DT support to the AT91RM9200 system timer. Based on AT91 PIT patch by Jean-Christophe PLAGNIOL-VILLARD.
>> >>
>> >> Patch 3 adds clock lookups for DT.
>> >>
>> >> Patch 4 adds a new board for RM9200 DT support.
>> >>
>> >> Patch 5-6 adds the base devicetree for AT91RM9200 and support for AT91RM9200-EK board.
>> >>
>> >>
>> >> I don't have a AT91RM9200-EK to test on but I was able to boot at91rm9200ek.dts on my custom board using a >>initrd. As far as I can tell pinctrl, usart and ohci all work.
>> >
>> > After updating barebox to have the DT support I've tested it on rm9200ek with net support
>> >
>> > work fine
>>
>> Excellent.
>>
>> > It does not apply on my tree as I've a more patch but I'll manage the merge
>> > conflict
>>
>>  Thanks for fixing it up Jean-Christophe.
> I'll also fix the usb device and add missing nor flash support and emac +
> pinctrl + defconfig

Very nice.

Please make the changes available via a git tree when it's ready.


regards
Joachim Eastwood

[PATCH v3 0/6] DT support for AT91RM9200

[Jean-Christophe PLAGNIOL-VILLARD]

On 18:59 Mon 05 Nov     , Joachim Eastwood wrote:
> On 5 November 2012 08:28, Jean-Christophe PLAGNIOL-VILLARD
> <plagnioj@jcrosoft.com> wrote:
> > On 18:55 Sun 04 Nov     , Joachim Eastwood wrote:
> >> On 4 November 2012 16:52, Jean-Christophe PLAGNIOL-VILLARD
> >> <plagnioj@jcrosoft.com> wrote:
> >> > On 19:31 Sun 28 Oct     , Joachim Eastwood wrote:
> >> >> Patch 1 is a fix for a build failure which can happen if board-dt is enabled when no AT91SAM machines are enabled.
> >> >>
> >> >> Patch 2 adds DT support to the AT91RM9200 system timer. Based on AT91 PIT patch by Jean-Christophe PLAGNIOL-VILLARD.
> >> >>
> >> >> Patch 3 adds clock lookups for DT.
> >> >>
> >> >> Patch 4 adds a new board for RM9200 DT support.
> >> >>
> >> >> Patch 5-6 adds the base devicetree for AT91RM9200 and support for AT91RM9200-EK board.
> >> >>
> >> >>
> >> >> I don't have a AT91RM9200-EK to test on but I was able to boot at91rm9200ek.dts on my custom board using a >>initrd. As far as I can tell pinctrl, usart and ohci all work.
> >> >
> >> > After updating barebox to have the DT support I've tested it on rm9200ek with net support
> >> >
> >> > work fine
> >>
> >> Excellent.
> >>
> >> > It does not apply on my tree as I've a more patch but I'll manage the merge
> >> > conflict
> >>
> >>  Thanks for fixing it up Jean-Christophe.
> > I'll also fix the usb device and add missing nor flash support and emac +
> > pinctrl + defconfig
> 
> Very nice.
> 
> Please make the changes available via a git tree when it's ready.
for at91 the official git is on github

I've to send some patch series

I'll put them in our next

Best Regards,
J.