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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>
This commit is contained in:
Magnus Damm 2012-07-06 17:10:02 +09:00 committed by Rafael J. Wysocki
parent 8f45b112fc
commit c54d6eca4f
2 changed files with 68 additions and 0 deletions
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21
arch/arm/boot/dts/sh7377.dtsi Normal file
View File

@ -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";
};
};
};

47
arch/arm/mach-shmobile/setup-sh7377.c
View File

@ -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 */