sh: Add support for SH7706/SH7710/SH7343 CPUs.

This adds support for the aforementioned CPU subtypes, and cleans
up some build issues encountered as a result.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

10 files changed, 252 insertions, 15 deletions

diff --git a/arch/sh/kernel/cpu/irq/ipr.c b/arch/sh/kernel/cpu/irq/ipr.c
index 0f54594..d2b715a 100644
--- a/arch/sh/kernel/cpu/irq/ipr.c
+++ b/arch/sh/kernel/cpu/irq/ipr.c
@@ -89,6 +89,7 @@ static void mask_and_ack_ipr(unsigned int irq)
 	disable_ipr_irq(irq);
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7706) || \
     defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
 	/* This is needed when we use edge triggered setting */
 	/* XXX: Is it really needed? */
@@ -162,6 +163,7 @@ void __init init_IRQ(void)
 #endif
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \
+    defined(CONFIG_CPU_SUBTYPE_SH7706) || \
     defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
 	/*
 	 * Initialize the Interrupt Controller (INTC)
diff --git a/arch/sh/kernel/cpu/sh3/Makefile b/arch/sh/kernel/cpu/sh3/Makefile
index 1b292ae..58d3815 100644
--- a/arch/sh/kernel/cpu/sh3/Makefile
+++ b/arch/sh/kernel/cpu/sh3/Makefile
@@ -6,16 +6,19 @@ obj-y	:= ex.o probe.o
 
 # CPU subtype setup
 obj-$(CONFIG_CPU_SUBTYPE_SH7705)	+= setup-sh7705.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7706)	+= setup-sh7709.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7707)	+= setup-sh7709.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7708)	+= setup-sh7708.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7709)	+= setup-sh7709.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7300)	+= setup-sh7300.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7710)	+= setup-sh7710.o
 
 # Primary on-chip clocks (common)
 clock-$(CONFIG_CPU_SH3)			:= clock-sh3.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7300)	:= clock-sh7300.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7705)	:= clock-sh7705.o
+clock-$(CONFIG_CPU_SUBTYPE_SH7706)	:= clock-sh7706.o
 clock-$(CONFIG_CPU_SUBTYPE_SH7709)	:= clock-sh7709.o
+clock-$(CONFIG_CPU_SUBTYPE_SH7710)	:= clock-sh7300.o
 
 obj-y	+= $(clock-y)
-
diff --git a/arch/sh/kernel/cpu/sh3/clock-sh7706.c b/arch/sh/kernel/cpu/sh3/clock-sh7706.c
new file mode 100644
index 0000000..0cf96f9
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh3/clock-sh7706.c
@@ -0,0 +1,84 @@
+/*
+ * arch/sh/kernel/cpu/sh3/clock-sh7706.c
+ *
+ * SH7706 support for the clock framework
+ *
+ *  Copyright (C) 2006  Takashi YOSHII
+ *
+ * Based on arch/sh/kernel/cpu/sh3/clock-sh7709.c
+ *  Copyright (C) 2005  Andriy Skulysh
+ *
+ * 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>
+
+static int stc_multipliers[] = { 1, 2, 4, 1, 3, 6, 1, 1 };
+static int ifc_divisors[]    = { 1, 2, 4, 1, 3, 1, 1, 1 };
+static int pfc_divisors[]    = { 1, 2, 4, 1, 3, 6, 1, 1 };
+
+static void master_clk_init(struct clk *clk)
+{
+	int frqcr = ctrl_inw(FRQCR);
+	int idx = ((frqcr & 0x2000) >> 11) | (frqcr & 0x0003);
+
+	clk->rate *= pfc_divisors[idx];
+}
+
+static struct clk_ops sh7706_master_clk_ops = {
+	.init		= master_clk_init,
+};
+
+static void module_clk_recalc(struct clk *clk)
+{
+	int frqcr = ctrl_inw(FRQCR);
+	int idx = ((frqcr & 0x2000) >> 11) | (frqcr & 0x0003);
+
+	clk->rate = clk->parent->rate / pfc_divisors[idx];
+}
+
+static struct clk_ops sh7706_module_clk_ops = {
+	.recalc		= module_clk_recalc,
+};
+
+static void bus_clk_recalc(struct clk *clk)
+{
+	int frqcr = ctrl_inw(FRQCR);
+	int idx = ((frqcr & 0x8000) >> 13) | ((frqcr & 0x0030) >> 4);
+
+	clk->rate = clk->parent->rate / stc_multipliers[idx];
+}
+
+static struct clk_ops sh7706_bus_clk_ops = {
+	.recalc		= bus_clk_recalc,
+};
+
+static void cpu_clk_recalc(struct clk *clk)
+{
+	int frqcr = ctrl_inw(FRQCR);
+	int idx = ((frqcr & 0x4000) >> 12) | ((frqcr & 0x000c) >> 2);
+
+	clk->rate = clk->parent->rate / ifc_divisors[idx];
+}
+
+static struct clk_ops sh7706_cpu_clk_ops = {
+	.recalc		= cpu_clk_recalc,
+};
+
+static struct clk_ops *sh7706_clk_ops[] = {
+	&sh7706_master_clk_ops,
+	&sh7706_module_clk_ops,
+	&sh7706_bus_clk_ops,
+	&sh7706_cpu_clk_ops,
+};
+
+void __init arch_init_clk_ops(struct clk_ops **ops, int idx)
+{
+	if (idx < ARRAY_SIZE(sh7706_clk_ops))
+		*ops = sh7706_clk_ops[idx];
+}
diff --git a/arch/sh/kernel/cpu/sh3/ex.S b/arch/sh/kernel/cpu/sh3/ex.S
index cc04e9e..44daf44 100644
--- a/arch/sh/kernel/cpu/sh3/ex.S
+++ b/arch/sh/kernel/cpu/sh3/ex.S
@@ -84,8 +84,12 @@ ENTRY(interrupt_table)
 	.long	do_IRQ	!      rovi
 	.long	do_IRQ			
 	.long	do_IRQ			/* 5E0 */
-#if  defined(CONFIG_CPU_SUBTYPE_SH7707) || defined(CONFIG_CPU_SUBTYPE_SH7709) || \
-     defined(CONFIG_CPU_SUBTYPE_SH7300) || defined(CONFIG_CPU_SUBTYPE_SH7705)
+#if  defined(CONFIG_CPU_SUBTYPE_SH7707) || \
+     defined(CONFIG_CPU_SUBTYPE_SH7709) || \
+     defined(CONFIG_CPU_SUBTYPE_SH7706) || \
+     defined(CONFIG_CPU_SUBTYPE_SH7300) || \
+     defined(CONFIG_CPU_SUBTYPE_SH7705) || \
+     defined(CONFIG_CPU_SUBTYPE_SH7710)
 	.long	do_IRQ	! 32 IRQ  irq0	/* 600 */
 	.long	do_IRQ	! 33      irq1
 	.long	do_IRQ	! 34      irq2
@@ -147,6 +151,51 @@ ENTRY(interrupt_table)
 	.long   do_IRQ	! 62 PCC  pcc0i
 	.long   do_IRQ	! 63      pcc1i	/* 9E0 */
 #endif
+#if defined(CONFIG_CPU_SUBTYPE_SH7710)
+	.long   exception_none	! 61 	/* 9A0 */
+	.long   exception_none	! 62
+	.long   exception_none	! 63
+	.long   exception_none	! 64	/* A00 */
+	.long   exception_none	! 65
+	.long   exception_none	! 66
+	.long   exception_none	! 67
+	.long   exception_none	! 68
+	.long   exception_none	! 69
+	.long   exception_none	! 70
+	.long   exception_none	! 71
+	.long   exception_none	! 72	/* B00 */
+	.long   exception_none	! 73
+	.long   exception_none	! 74
+	.long   exception_none	! 75
+	.long   do_IRQ	! 76 DMAC2 dei4	/* B80 */
+	.long   do_IRQ	! 77 DMAC2 dei5
+	.long   exception_none	! 78
+	.long   do_IRQ	! 79 IPSEC ipseci /* BE0 */
+	.long   do_IRQ	! 80 EDMAC eint0 /* C00 */
+	.long   do_IRQ	! 81 EDMAC eint1
+	.long   do_IRQ	! 82 EDMAC eint2
+	.long   exception_none	! 83	/* C60 */
+	.long   exception_none	! 84
+	.long   exception_none	! 85
+	.long   exception_none	! 86
+	.long   exception_none	! 87
+	.long   exception_none	! 88	/* D00 */
+	.long   exception_none	! 89
+	.long   exception_none	! 90
+	.long   exception_none	! 91
+	.long   exception_none	! 92
+	.long   exception_none	! 93
+	.long   exception_none	! 94
+	.long   exception_none	! 95
+	.long   do_IRQ	! 96 SIOF eri0	/* E00 */
+	.long   do_IRQ	! 97      txi0
+	.long   do_IRQ	! 98      rxi0
+	.long   do_IRQ	! 99      cci0
+	.long   do_IRQ	! 100     eri1	/* E80 */
+	.long   do_IRQ	! 101     txi1
+	.long   do_IRQ	! 102     rxi2
+	.long   do_IRQ	! 103     cci3
+#endif
 #if defined(CONFIG_CPU_SUBTYPE_SH7300)
 	.long   do_IRQ	! 64
 	.long   do_IRQ	! 65
@@ -195,4 +244,3 @@ ENTRY(interrupt_table)
 	.long   do_IRQ	! 108
 #endif
 #endif
-
diff --git a/arch/sh/kernel/cpu/sh3/probe.c b/arch/sh/kernel/cpu/sh3/probe.c
index 5cdc886..e670988 100644
--- a/arch/sh/kernel/cpu/sh3/probe.c
+++ b/arch/sh/kernel/cpu/sh3/probe.c
@@ -72,6 +72,12 @@ int __init detect_cpu_and_cache_system(void)
 		cpu_data->dcache.sets		= 256;
 		cpu_data->type = CPU_SH7729;
 
+#if defined(CONFIG_CPU_SUBTYPE_SH7706)
+		cpu_data->type = CPU_SH7706;
+#endif
+#if defined(CONFIG_CPU_SUBTYPE_SH7710)
+		cpu_data->type = CPU_SH7710;
+#endif
 #if defined(CONFIG_CPU_SUBTYPE_SH7705)
 		cpu_data->type = CPU_SH7705;
 
diff --git a/arch/sh/kernel/cpu/sh3/setup-sh7710.c b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
new file mode 100644
index 0000000..895f99e
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh3/setup-sh7710.c
@@ -0,0 +1,43 @@
+/*
+ * SH7710 Setup
+ *
+ *  Copyright (C) 2006  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/platform_device.h>
+#include <linux/init.h>
+#include <linux/serial.h>
+#include <asm/sci.h>
+
+static struct plat_sci_port sci_platform_data[] = {
+	{
+		.mapbase	= 0xa4400000,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.type		= PORT_SCIF,
+		.irqs		= { 52, 53, 55, 54 },
+	}, {
+		.flags = 0,
+	}
+};
+
+static struct platform_device sci_device = {
+	.name		= "sh-sci",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= sci_platform_data,
+	},
+};
+
+static struct platform_device *sh7710_devices[] __initdata = {
+	&sci_device,
+};
+
+static int __init sh7710_devices_setup(void)
+{
+	return platform_add_devices(sh7710_devices,
+				    ARRAY_SIZE(sh7710_devices));
+}
+__initcall(sh7710_devices_setup);
diff --git a/arch/sh/kernel/cpu/sh4/Makefile b/arch/sh/kernel/cpu/sh4/Makefile
index 48946d5..8dbf389 100644
--- a/arch/sh/kernel/cpu/sh4/Makefile
+++ b/arch/sh/kernel/cpu/sh4/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7760)	+= setup-sh7760.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7770)	+= setup-sh7770.o
 obj-$(CONFIG_CPU_SUBTYPE_SH7780)	+= setup-sh7780.o
 obj-$(CONFIG_CPU_SUBTYPE_SH73180)	+= setup-sh73180.o
+obj-$(CONFIG_CPU_SUBTYPE_SH7343)	+= setup-sh7343.o
 obj-$(CONFIG_CPU_SUBTYPE_SH4_202)	+= setup-sh4-202.o
 
 # Primary on-chip clocks (common)
diff --git a/arch/sh/kernel/cpu/sh4/ex.S b/arch/sh/kernel/cpu/sh4/ex.S
index af5ecbd..7146893 100644
--- a/arch/sh/kernel/cpu/sh4/ex.S
+++ b/arch/sh/kernel/cpu/sh4/ex.S
@@ -123,6 +123,13 @@ ENTRY(interrupt_table)
 	.long	do_IRQ	! 45      dmte5
 	.long	do_IRQ	! 46      dmte6
 	.long	do_IRQ	! 47      dmte7		/* 7E0 */
+#elif defined(CONFIG_CPU_SUBTYPE_SH7343)
+	.long	do_IRQ	! 44 IIC1 ali		/* 780 */
+	.long	do_IRQ	! 45      tacki
+	.long	do_IRQ	! 46      waiti
+	.long	do_IRQ	! 47      dtei		/* 7E0 */
+	.long	do_IRQ	! 48 DMAC dei0		/* 800 */
+	.long	do_IRQ	! 49      dei1		/* 820 */
 #else
 	.long	exception_error			! 44	/* 780 */
 	.long	exception_error			! 45
@@ -132,7 +139,8 @@ ENTRY(interrupt_table)
 #if defined(CONFIG_SH_FPU)
 	.long	do_fpu_state_restore	! 48	/* 800 */
 	.long	do_fpu_state_restore	! 49	/* 820 */
-#else
+#elif !defined(CONFIG_CPU_SUBTYPE_SH7343) && \
+      !defined(CONFIG_CPU_SUBTYPE_SH73180)
 	.long	exception_error
 	.long	exception_error
 #endif
@@ -225,7 +233,7 @@ ENTRY(interrupt_table)
 	.long	exception_error
 	.long	do_IRQ	! ADC	adi
 	.long	do_IRQ	! CMT	cmti	/* FA0 */
-#elif defined(CONFIG_CPU_SUBTYPE_SH73180)
+#elif defined(CONFIG_CPU_SUBTYPE_SH73180) || defined(CONFIG_CPU_SUBTYPE_SH7343)
 	.long	do_IRQ	!  50 0x840
 	.long	do_IRQ	!  51 0x860
 	.long	do_IRQ	!  52 0x880
diff --git a/arch/sh/kernel/cpu/sh4/probe.c b/arch/sh/kernel/cpu/sh4/probe.c
index 2a7707a..6e8a2b5 100644
--- a/arch/sh/kernel/cpu/sh4/probe.c
+++ b/arch/sh/kernel/cpu/sh4/probe.c
@@ -3,7 +3,7 @@
  *
  * CPU Subtype Probing for SH-4.
  *
- * Copyright (C) 2001 - 2005  Paul Mundt
+ * Copyright (C) 2001 - 2006  Paul Mundt
  * Copyright (C) 2003  Richard Curnow
  *
  * This file is subject to the terms and conditions of the GNU General Public
@@ -76,12 +76,6 @@ int __init detect_cpu_and_cache_system(void)
 		cpu_data->type = CPU_SH73180;
 		cpu_data->icache.ways = 4;
 		cpu_data->dcache.ways = 4;
-
-		/*
-		 * XXX: Double check this, none of the SH-4A/SH-4AL processors
-		 * should have this, as it's essentially a legacy thing.
-		 */
-		cpu_data->flags |= CPU_HAS_PTEA;
 		break;
 	case 0x2001:
 	case 0x2004:
@@ -89,8 +83,7 @@ int __init detect_cpu_and_cache_system(void)
 		cpu_data->icache.ways = 4;
 		cpu_data->dcache.ways = 4;
 
-		/* Same note as above applies here for PTEA */
-		cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PTEA;
+		cpu_data->flags |= CPU_HAS_FPU;
 		break;
 	case 0x2006:
 	case 0x200A:
@@ -104,6 +97,12 @@ int __init detect_cpu_and_cache_system(void)
 
 		cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PERF_COUNTER;
 		break;
+	case 0x3000:
+	case 0x3003:
+		cpu_data->type = CPU_SH7343;
+		cpu_data->icache.ways = 4;
+		cpu_data->dcache.ways = 4;
+		break;
 	case 0x8000:
 		cpu_data->type = CPU_ST40RA;
 		cpu_data->flags |= CPU_HAS_FPU | CPU_HAS_PTEA;
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7343.c b/arch/sh/kernel/cpu/sh4/setup-sh7343.c
new file mode 100644
index 0000000..91d61cf
--- /dev/null
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7343.c
@@ -0,0 +1,43 @@
+/*
+ * SH7343 Setup
+ *
+ *  Copyright (C) 2006  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/platform_device.h>
+#include <linux/init.h>
+#include <linux/serial.h>
+#include <asm/sci.h>
+
+static struct plat_sci_port sci_platform_data[] = {
+	{
+		.mapbase	= 0xffe00000,
+		.flags		= UPF_BOOT_AUTOCONF,
+		.type		= PORT_SCIF,
+		.irqs		= { 80, 81, 83, 82 },
+	}, {
+		.flags = 0,
+	}
+};
+
+static struct platform_device sci_device = {
+	.name		= "sh-sci",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= sci_platform_data,
+	},
+};
+
+static struct platform_device *sh7343_devices[] __initdata = {
+	&sci_device,
+};
+
+static int __init sh7343_devices_setup(void)
+{
+	return platform_add_devices(sh7343_devices,
+				    ARRAY_SIZE(sh7343_devices));
+}
+__initcall(sh7343_devices_setup);