Re: [PATCH] ARM: mach-shmobile: r8a7740 generic board support via DT

["Rafael J. Wysocki" <rjw@sisk.pl>]

On Friday, July 06, 2012, Magnus Damm wrote:
> From: Magnus Damm <damm@opensource.se>
> 
> Add generic DT board support for the r8a7740 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>

Applied to the r8a7740 branch of the renesas.git tree.

Thanks,
Rafael


> ---
> 
>  arch/arm/boot/dts/r8a7740.dtsi         |   21 ++++++++++++++
>  arch/arm/mach-shmobile/setup-r8a7740.c |   47 ++++++++++++++++++++++++++++++++
>  2 files changed, 68 insertions(+)
> 
> --- /dev/null
> +++ work/arch/arm/boot/dts/r8a7740.dtsi	2012-07-06 16:44:11.000000000 +0900
> @@ -0,0 +1,21 @@
> +/*
> + * Device Tree Source for the r8a7740 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,r8a7740";
> +
> +	cpus {
> +		cpu@0 {
> +			compatible = "arm,cortex-a9";
> +		};
> +	};
> +};
> --- 0001/arch/arm/mach-shmobile/setup-r8a7740.c
> +++ work/arch/arm/mach-shmobile/setup-r8a7740.c	2012-07-06 16:51:47.000000000 +0900
> @@ -23,6 +23,7 @@
>  #include <linux/init.h>
>  #include <linux/io.h>
>  #include <linux/platform_device.h>
> +#include <linux/of_platform.h>
>  #include <linux/serial_sci.h>
>  #include <linux/sh_dma.h>
>  #include <linux/sh_timer.h>
> @@ -694,3 +695,49 @@ void __init r8a7740_add_early_devices(vo
>  	/* override timer setup with soc-specific code */
>  	shmobile_timer.init = r8a7740_earlytimer_init;
>  }
> +
> +#ifdef CONFIG_USE_OF
> +
> +void __init r8a7740_add_early_devices_dt(void)
> +{
> +	shmobile_setup_delay(800, 1, 3); /* Cortex-A9 @ 800MHz */
> +
> +	early_platform_add_devices(r8a7740_early_devices,
> +				   ARRAY_SIZE(r8a7740_early_devices));
> +
> +	/* setup early console here as well */
> +	shmobile_setup_console();
> +}
> +
> +static const struct of_dev_auxdata r8a7740_auxdata_lookup[] __initconst = {
> +	{ }
> +};
> +
> +void __init r8a7740_add_standard_devices_dt(void)
> +{
> +	/* clocks are setup late during boot in the case of DT */
> +	r8a7740_clock_init(0);
> +
> +	platform_add_devices(r8a7740_early_devices,
> +			    ARRAY_SIZE(r8a7740_early_devices));
> +
> +	of_platform_populate(NULL, of_default_bus_match_table,
> +			     r8a7740_auxdata_lookup, NULL);
> +}
> +
> +static const char *r8a7740_boards_compat_dt[] __initdata = {
> +	"renesas,r8a7740",
> +	NULL,
> +};
> +
> +DT_MACHINE_START(SH7372_DT, "Generic R8A7740 (Flattened Device Tree)")
> +	.map_io		= r8a7740_map_io,
> +	.init_early	= r8a7740_add_early_devices_dt,
> +	.init_irq	= r8a7740_init_irq,
> +	.handle_irq	= shmobile_handle_irq_intc,
> +	.init_machine	= r8a7740_add_standard_devices_dt,
> +	.timer		= &shmobile_timer,
> +	.dt_compat	= r8a7740_boards_compat_dt,
> +MACHINE_END
> +
> +#endif /* CONFIG_USE_OF */
> 
>