ARM: AT91: Add AT91RM9200 DT board

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 6d4de48..d37dd5c 100644 (file)
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -500,6 +500,14 @@ 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 (file)
--- 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 (file)
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 f496506..9bb5ce5 100644 (file)
--- 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 523daa9..e3f1ea4 100644 (file)
--- 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();