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Commit ccb7cc74 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Simon Horman
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ARM: shmobile: add R8A7778 basis support 



Add initial support for the R8A7778 R-Car M1A SoC.
No static virtual mappings are used, all the components
make use of ioremap().
DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

It is based on v1.0 datasheet

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent 7653c318

arch/arm/boot/dts/r8a7778.dtsi

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+35 −0
Original line number Original line Diff line number Diff line 
/*

 * Device Tree Source for Renesas r8a7778

 *

 * Copyright (C) 2013  Renesas Solutions Corp.

 * Copyright (C) 2013  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

 *

 * based on r8a7779

 *

 * Copyright (C) 2013 Renesas Solutions Corp.

 * Copyright (C) 2013 Simon Horman

 *

 * 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,r8a7778";



	cpus {

		cpu@0 {

			compatible = "arm,cortex-a9";

		};

	};



	gic: interrupt-controller@fe438000 {

		compatible = "arm,cortex-a9-gic";

		#interrupt-cells = <3>;

		interrupt-controller;

		reg = <0xfe438000 0x1000>,

		      <0xfe430000 0x100>;

	};

};

arch/arm/mach-shmobile/Kconfig

+6 −0
Original line number Original line Diff line number Diff line
@@ -33,6 +33,12 @@ config ARCH_R8A7740 
	select CPU_V7

	select CPU_V7

	select SH_CLK_CPG

	select SH_CLK_CPG





config ARCH_R8A7778

	bool "R-Car M1 (R8A77780)"

	select CPU_V7

	select SH_CLK_CPG

	select ARM_GIC



config ARCH_R8A7779

config ARCH_R8A7779

	bool "R-Car H1 (R8A77790)"

	bool "R-Car H1 (R8A77790)"

	select ARCH_WANT_OPTIONAL_GPIOLIB

	select ARCH_WANT_OPTIONAL_GPIOLIB

arch/arm/mach-shmobile/Makefile

+1 −0
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@@ -10,6 +10,7 @@ obj-$(CONFIG_ARCH_SH7372) += setup-sh7372.o clock-sh7372.o intc-sh7372.o 
obj-$(CONFIG_ARCH_SH73A0)	+= setup-sh73a0.o clock-sh73a0.o intc-sh73a0.o

obj-$(CONFIG_ARCH_SH73A0)	+= setup-sh73a0.o clock-sh73a0.o intc-sh73a0.o

obj-$(CONFIG_ARCH_R8A73A4)	+= setup-r8a73a4.o clock-r8a73a4.o

obj-$(CONFIG_ARCH_R8A73A4)	+= setup-r8a73a4.o clock-r8a73a4.o

obj-$(CONFIG_ARCH_R8A7740)	+= setup-r8a7740.o clock-r8a7740.o intc-r8a7740.o

obj-$(CONFIG_ARCH_R8A7740)	+= setup-r8a7740.o clock-r8a7740.o intc-r8a7740.o

obj-$(CONFIG_ARCH_R8A7778)	+= setup-r8a7778.o clock-r8a7778.o

obj-$(CONFIG_ARCH_R8A7779)	+= setup-r8a7779.o clock-r8a7779.o intc-r8a7779.o

obj-$(CONFIG_ARCH_R8A7779)	+= setup-r8a7779.o clock-r8a7779.o intc-r8a7779.o

obj-$(CONFIG_ARCH_EMEV2)	+= setup-emev2.o clock-emev2.o

obj-$(CONFIG_ARCH_EMEV2)	+= setup-emev2.o clock-emev2.o

arch/arm/mach-shmobile/clock-r8a7778.c

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/*

 * r8a7778 clock framework support

 *

 * Copyright (C) 2013  Renesas Solutions Corp.

 * Copyright (C) 2013  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

 *

 * based on r8a7779

 *

 * Copyright (C) 2011  Renesas Solutions Corp.

 * Copyright (C) 2011  Magnus Damm

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */



#include <linux/io.h>

#include <linux/sh_clk.h>

#include <linux/clkdev.h>

#include <mach/common.h>



#define MSTPCR0		IOMEM(0xffc80030)

#define MSTPCR1		IOMEM(0xffc80034)

#define MSTPCR3		IOMEM(0xffc8003c)

#define MSTPSR1		IOMEM(0xffc80044)

#define MSTPSR4		IOMEM(0xffc80048)

#define MSTPSR6		IOMEM(0xffc8004c)

#define MSTPCR4		IOMEM(0xffc80050)

#define MSTPCR5		IOMEM(0xffc80054)

#define MSTPCR6		IOMEM(0xffc80058)



/* ioremap() through clock mapping mandatory to avoid

 * collision with ARM coherent DMA virtual memory range.

 */



static struct clk_mapping cpg_mapping = {

	.phys	= 0xffc80000,

	.len	= 0x80,

};



static struct clk clkp = {

	.rate   = 62500000, /* FIXME: shortcut */

	.flags  = CLK_ENABLE_ON_INIT,

	.mapping = &cpg_mapping,

};



static struct clk *main_clks[] = {

	&clkp,

};



enum {

	MSTP016, MSTP015,

	MSTP_NR };



static struct clk mstp_clks[MSTP_NR] = {

	[MSTP016] = SH_CLK_MSTP32(&clkp, MSTPCR0, 16, 0), /* TMU0 */

	[MSTP015] = SH_CLK_MSTP32(&clkp, MSTPCR0, 15, 0), /* TMU1 */

};



static struct clk_lookup lookups[] = {

	/* MSTP32 clocks */

	CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP016]), /* TMU00 */

	CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP015]), /* TMU01 */

};



void __init r8a7778_clock_init(void)

{

	int k, ret = 0;



	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)

		ret = clk_register(main_clks[k]);



	if (!ret)

		ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);



	clkdev_add_table(lookups, ARRAY_SIZE(lookups));



	if (!ret)

		shmobile_clk_init();

	else

		panic("failed to setup r8a7778 clocks\n");

}

arch/arm/mach-shmobile/include/mach/r8a7778.h

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/*

 * Copyright (C) 2013  Renesas Solutions Corp.

 * Copyright (C) 2013  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

 */

#ifndef __ASM_R8A7778_H__

#define __ASM_R8A7778_H__



extern void r8a7778_add_standard_devices(void);

extern void r8a7778_add_standard_devices_dt(void);

extern void r8a7778_init_delay(void);

extern void r8a7778_init_irq(void);

extern void r8a7778_init_irq_dt(void);

extern void r8a7778_clock_init(void);



#endif /* __ASM_R8A7778_H__ */