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authorMagnus Damm <damm@opensource.se>2012-07-06 17:10:02 +0900
committerRafael J. Wysocki <rjw@sisk.pl>2012-07-06 21:05:20 +0200
commitc54d6eca4f717b44e26ca8f91fbf2314d083625e (patch)
tree708d1de995a1f8c7c73bfde144b12b6649b136de
parent8f45b112fc66ef6869ccca4c3966976982f496a9 (diff)
ARM: mach-shmobile: sh7377 generic board support via DT
Add generic DT board support for the sh7377 SoC. SCIF serial ports and timers are kept as regular platform devices. Other on-chip and on-board devices should be configured via the device tree. At this point there is no interrupt controller support in place but such code will be added over time when proper IRQ domain support has been added to INTC. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
-rw-r--r--arch/arm/boot/dts/sh7377.dtsi21
-rw-r--r--arch/arm/mach-shmobile/setup-sh7377.c47
2 files changed, 68 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sh7377.dtsi b/arch/arm/boot/dts/sh7377.dtsi
new file mode 100644
index 000000000000..767ee0796daa
--- /dev/null
+++ b/arch/arm/boot/dts/sh7377.dtsi
@@ -0,0 +1,21 @@
+/*
+ * Device Tree Source for the sh7377 SoC
+ *
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/include/ "skeleton.dtsi"
+
+/ {
+ compatible = "renesas,sh7377";
+
+ cpus {
+ cpu@0 {
+ compatible = "arm,cortex-a8";
+ };
+ };
+};
diff --git a/arch/arm/mach-shmobile/setup-sh7377.c b/arch/arm/mach-shmobile/setup-sh7377.c
index d576a6abbade..855b1506caf8 100644
--- a/arch/arm/mach-shmobile/setup-sh7377.c
+++ b/arch/arm/mach-shmobile/setup-sh7377.c
@@ -22,6 +22,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
+#include <linux/of_platform.h>
#include <linux/uio_driver.h>
#include <linux/delay.h>
#include <linux/input.h>
@@ -500,3 +501,49 @@ void __init sh7377_add_early_devices(void)
/* override timer setup with soc-specific code */
shmobile_timer.init = sh7377_earlytimer_init;
}
+
+#ifdef CONFIG_USE_OF
+
+void __init sh7377_add_early_devices_dt(void)
+{
+ shmobile_setup_delay(600, 1, 3); /* Cortex-A8 @ 600MHz */
+
+ early_platform_add_devices(sh7377_early_devices,
+ ARRAY_SIZE(sh7377_early_devices));
+
+ /* setup early console here as well */
+ shmobile_setup_console();
+}
+
+static const struct of_dev_auxdata sh7377_auxdata_lookup[] __initconst = {
+ { }
+};
+
+void __init sh7377_add_standard_devices_dt(void)
+{
+ /* clocks are setup late during boot in the case of DT */
+ sh7377_clock_init();
+
+ platform_add_devices(sh7377_early_devices,
+ ARRAY_SIZE(sh7377_early_devices));
+
+ of_platform_populate(NULL, of_default_bus_match_table,
+ sh7377_auxdata_lookup, NULL);
+}
+
+static const char *sh7377_boards_compat_dt[] __initdata = {
+ "renesas,sh7377",
+ NULL,
+};
+
+DT_MACHINE_START(SH7377_DT, "Generic SH7377 (Flattened Device Tree)")
+ .map_io = sh7377_map_io,
+ .init_early = sh7377_add_early_devices_dt,
+ .init_irq = sh7377_init_irq,
+ .handle_irq = shmobile_handle_irq_intc,
+ .init_machine = sh7377_add_standard_devices_dt,
+ .timer = &shmobile_timer,
+ .dt_compat = sh7377_boards_compat_dt,
+MACHINE_END
+
+#endif /* CONFIG_USE_OF */