Commit 2825999e authored by Peter Griffin's avatar Peter Griffin Committed by Paul Mundt
Browse files

sh: Add support for SH7201 CPU subtype. 



This patch adds support for the SH-2A FPU based SH7201 processor subtype.

Signed-off-by: default avatarPeter Griffin <pgriffin@mpc-data.co.uk>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 135210b3

arch/sh/Kconfig

+5 −0
Original line number Diff line number Diff line
@@ -185,6 +185,11 @@ config CPU_SUBTYPE_SH7619 


# SH-2A Processor Support



config CPU_SUBTYPE_SH7201

	bool "Support SH7201 processor"

	select CPU_SH2A

	select CPU_HAS_FPU

 

config CPU_SUBTYPE_SH7203

	bool "Support SH7203 processor"

	select CPU_SH2A

arch/sh/include/asm/bugs.h

+1 −1
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@@ -25,7 +25,7 @@ static void __init check_bugs(void) 
	case CPU_SH7619:

		*p++ = '2';

		break;

	case CPU_SH7203 ... CPU_MXG:

	case CPU_SH7201 ... CPU_MXG:

		*p++ = '2';

		*p++ = 'a';

		break;

arch/sh/include/asm/processor.h

+1 −1
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@@ -18,7 +18,7 @@ enum cpu_type { 
	CPU_SH7619,



	/* SH-2A types */

	CPU_SH7203, CPU_SH7206, CPU_SH7263, CPU_MXG,

	CPU_SH7201, CPU_SH7203, CPU_SH7206, CPU_SH7263, CPU_MXG,



	/* SH-3 types */

	CPU_SH7705, CPU_SH7706, CPU_SH7707,

arch/sh/kernel/cpu/sh2a/Makefile

+2 −1
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@@ -8,9 +8,10 @@ common-y += ex.o entry.o 


obj-$(CONFIG_SH_FPU)	+= fpu.o



obj-$(CONFIG_CPU_SUBTYPE_SH7206)	+= setup-sh7206.o clock-sh7206.o

obj-$(CONFIG_CPU_SUBTYPE_SH7201)	+= setup-sh7201.o clock-sh7201.o

obj-$(CONFIG_CPU_SUBTYPE_SH7203)	+= setup-sh7203.o clock-sh7203.o

obj-$(CONFIG_CPU_SUBTYPE_SH7263)	+= setup-sh7203.o clock-sh7203.o

obj-$(CONFIG_CPU_SUBTYPE_SH7206)	+= setup-sh7206.o clock-sh7206.o

obj-$(CONFIG_CPU_SUBTYPE_MXG)		+= setup-mxg.o clock-sh7206.o



# Pinmux setup

arch/sh/kernel/cpu/sh2a/clock-sh7201.c

0 → 100644
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/*

 * arch/sh/kernel/cpu/sh2a/clock-sh7201.c

 *

 * SH7201 support for the clock framework

 *

 *  Copyright (C) 2008 Peter Griffin  <pgriffin@mpc-data.co.uk>

 *

 * Based on clock-sh4.c

 *  Copyright (C) 2005  Paul Mundt

 *

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.

 */

#include <linux/init.h>

#include <linux/kernel.h>

#include <asm/clock.h>

#include <asm/freq.h>

#include <asm/io.h>



const static int pll1rate[]={1,2,3,4,6,8};

const static int pfc_divisors[]={1,2,3,4,6,8,12};

#define ifc_divisors pfc_divisors



#if (CONFIG_SH_CLK_MD == 0)

#define PLL2 (4)

#elif (CONFIG_SH_CLK_MD == 2)

#define PLL2 (2)

#elif (CONFIG_SH_CLK_MD == 3)

#define PLL2 (1)

#else

#error "Illegal Clock Mode!"

#endif



static void master_clk_init(struct clk *clk)

{

	clk->rate = 10000000 * PLL2 * pll1rate[(ctrl_inw(FREQCR) >> 8) & 0x0007];

}



static struct clk_ops sh7201_master_clk_ops = {

	.init		= master_clk_init,

};



static void module_clk_recalc(struct clk *clk)

{

	int idx = (ctrl_inw(FREQCR) & 0x0007);

	clk->rate = clk->parent->rate / pfc_divisors[idx];

}



static struct clk_ops sh7201_module_clk_ops = {

	.recalc		= module_clk_recalc,

};



static void bus_clk_recalc(struct clk *clk)

{

	int idx = (ctrl_inw(FREQCR) & 0x0007);

	clk->rate = clk->parent->rate / pfc_divisors[idx];

}



static struct clk_ops sh7201_bus_clk_ops = {

	.recalc		= bus_clk_recalc,

};



static void cpu_clk_recalc(struct clk *clk)

{

	int idx = ((ctrl_inw(FREQCR) >> 4) & 0x0007);

	clk->rate = clk->parent->rate / ifc_divisors[idx];

}



static struct clk_ops sh7201_cpu_clk_ops = {

	.recalc		= cpu_clk_recalc,

};



static struct clk_ops *sh7201_clk_ops[] = {

	&sh7201_master_clk_ops,

	&sh7201_module_clk_ops,

	&sh7201_bus_clk_ops,

	&sh7201_cpu_clk_ops,

};



void __init arch_init_clk_ops(struct clk_ops **ops, int idx)

{

	if (idx < ARRAY_SIZE(sh7201_clk_ops))

		*ops = sh7201_clk_ops[idx];

}