summaryrefslogtreecommitdiff
path: root/arch/arm/mach-shmobile/setup-emev2.c
diff options
context:
space:
mode:
authorMagnus Damm <damm@opensource.se>2012-05-16 10:45:54 +0400
committerRafael J. Wysocki <rjw@sisk.pl>2012-05-18 02:14:03 +0400
commit3d5de27174955702bc874302ba9e72d71d5acd58 (patch)
treea2dc7e5fc0a818fb718f2353b74ca98aa45c8738 /arch/arm/mach-shmobile/setup-emev2.c
parent0c73f7bc124e1657a583d9dfb0d168a69005e2d3 (diff)
downloadlinux-3d5de27174955702bc874302ba9e72d71d5acd58.tar.xz
mach-shmobile: Emma Mobile EV2 DT support V3
This is EMEV2 DT support V3. The support is limited to whatever devices that are complied in the kernel. At this point we have UARTs handled by "em-uart" and a timer handled by "em-sti". Clocks and SMP are not supported. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'arch/arm/mach-shmobile/setup-emev2.c')
-rw-r--r--arch/arm/mach-shmobile/setup-emev2.c47
1 files changed, 46 insertions, 1 deletions
diff --git a/arch/arm/mach-shmobile/setup-emev2.c b/arch/arm/mach-shmobile/setup-emev2.c
index d40fede8c9b3..dae9aa68bb09 100644
--- a/arch/arm/mach-shmobile/setup-emev2.c
+++ b/arch/arm/mach-shmobile/setup-emev2.c
@@ -22,9 +22,11 @@
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/platform_data/gpio-em.h>
+#include <linux/of_platform.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/io.h>
+#include <linux/of_irq.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/emev2.h>
@@ -381,9 +383,14 @@ void __init emev2_add_standard_devices(void)
ARRAY_SIZE(emev2_late_devices));
}
-void __init emev2_add_early_devices(void)
+void __init emev2_init_delay(void)
{
shmobile_setup_delay(533, 1, 3); /* Cortex-A9 @ 533MHz */
+}
+
+void __init emev2_add_early_devices(void)
+{
+ emev2_init_delay();
early_platform_add_devices(emev2_early_devices,
ARRAY_SIZE(emev2_early_devices));
@@ -405,3 +412,41 @@ void __init emev2_init_irq(void)
/* Use GIC to handle interrupts */
gic_init(0, 29, gic_dist_base, gic_cpu_base);
}
+
+#ifdef CONFIG_USE_OF
+static const struct of_dev_auxdata emev2_auxdata_lookup[] __initconst = {
+ { }
+};
+
+void __init emev2_add_standard_devices_dt(void)
+{
+ of_platform_populate(NULL, of_default_bus_match_table,
+ emev2_auxdata_lookup, NULL);
+}
+
+static const struct of_device_id emev2_dt_irq_match[] = {
+ { .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
+ {},
+};
+
+static const char *emev2_boards_compat_dt[] __initdata = {
+ "renesas,emev2",
+ NULL,
+};
+
+void __init emev2_init_irq_dt(void)
+{
+ of_irq_init(emev2_dt_irq_match);
+}
+
+DT_MACHINE_START(EMEV2_DT, "Generic Emma Mobile EV2 (Flattened Device Tree)")
+ .init_early = emev2_init_delay,
+ .nr_irqs = NR_IRQS_LEGACY,
+ .init_irq = emev2_init_irq_dt,
+ .handle_irq = gic_handle_irq,
+ .init_machine = emev2_add_standard_devices_dt,
+ .timer = &shmobile_timer,
+ .dt_compat = emev2_boards_compat_dt,
+MACHINE_END
+
+#endif /* CONFIG_USE_OF */