sh: Add SH7785 Highlander board support (R7785RP).

This adds preliminary support for the SH7785-based Highlander board.
Some of the Highlander support code is reordered so that most of it
can be reused directly.

This also plugs in missing SH7785 checks in the places that need it,
as this is the first board to support the CPU.

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

arch/sh/Kconfig

@@ -197,12 +197,8 @@ config SH_RTS7751R2D
 	  Select RTS7751R2D if configuring for a Renesas Technology
 	  Sales SH-Graphics board.
 
-config SH_R7780RP
-	bool "R7780RP-1"
-	select CPU_SUBTYPE_SH7780
-	help
-	  Select R7780RP-1 if configuring for a Renesas Solutions
-	  HIGHLANDER board.
+config SH_HIGHLANDER
+	bool "Highlander"
 
 config SH_EDOSK7705
 	bool "EDOSK7705"
@@ -262,6 +258,10 @@ config SH_UNKNOWN
 
 endchoice
 
+source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
+source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
+source "arch/sh/boards/renesas/r7780rp/Kconfig"
+
 source "arch/sh/mm/Kconfig"
 
 config CF_ENABLER
@@ -412,8 +412,9 @@ config CPU_HAS_PTEA
 
 endmenu
 
-menu "Timer support"
-depends on !GENERIC_TIME
+menu "Timer and clock configuration"
+
+if !GENERIC_TIME
 
 config SH_TMU
 	bool "TMU timer support"
@@ -436,17 +437,11 @@ config SH_MTU2
 	help
 	  This enables the use of the MTU2 as the system timer.
 
-endmenu
-
-source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
-
-source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
-
-source "arch/sh/boards/renesas/r7780rp/Kconfig"
+endif
 
 config SH_TIMER_IRQ
 	int
-	default "28" if CPU_SUBTYPE_SH7780
+	default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
 	default "86" if CPU_SUBTYPE_SH7619
 	default "140" if CPU_SUBTYPE_SH7206
 	default "16"
@@ -476,7 +471,8 @@ config SH_PCLK_FREQ
 	default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
 			      CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
 			      CPU_SUBTYPE_SH7206
-	default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
+	default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 || \
+			      CPU_SUBTYPE_SH7785
 	default "60000000" if CPU_SUBTYPE_SH7751
 	default "66000000" if CPU_SUBTYPE_SH4_202
 	help
@@ -491,6 +487,8 @@ config SH_CLK_MD
 	help
 	  MD2 - MD0 pin setting.
 
+endmenu
+
 menu "CPU Frequency scaling"
 
 source "drivers/cpufreq/Kconfig"
@@ -509,21 +507,6 @@ config SH_CPU_FREQ
 
 endmenu
 
-source "arch/sh/drivers/dma/Kconfig"
-
-source "arch/sh/cchips/Kconfig"
-
-config HEARTBEAT
-	bool "Heartbeat LED"
-	depends on SH_MPC1211 || SH_SH03 || \
-		   SOLUTION_ENGINE || \
-		   SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK || \
-		   SH_R7780RP
-	help
-	  Use the power-on LED on your machine as a load meter.  The exact
-	  behavior is platform-dependent, but normally the flash frequency is
-	  a hyperbolic function of the 5-minute load average.
-
 source "arch/sh/drivers/Kconfig"
 
 endmenu

arch/sh/Makefile

@@ -102,7 +102,7 @@ machdir-$(CONFIG_SH_HS7751RVOIP)		:= renesas/hs7751rvoip
 machdir-$(CONFIG_SH_RTS7751R2D)			:= renesas/rts7751r2d
 machdir-$(CONFIG_SH_7751_SYSTEMH)		:= renesas/systemh
 machdir-$(CONFIG_SH_EDOSK7705)			:= renesas/edosk7705
-machdir-$(CONFIG_SH_R7780RP)			:= renesas/r7780rp
+machdir-$(CONFIG_SH_HIGHLANDER)			:= renesas/r7780rp
 machdir-$(CONFIG_SH_7710VOIPGW)			:= renesas/sh7710voipgw
 machdir-$(CONFIG_SH_SH4202_MICRODEV)		:= superh/microdev
 machdir-$(CONFIG_SH_LANDISK)			:= landisk

arch/sh/boards/renesas/r7780rp/Kconfig

@@ -1,14 +1,24 @@
-if SH_R7780RP
+if SH_HIGHLANDER
 
-menu "R7780RP options"
+choice
+	prompt "Highlander options"
+	default SH_R7780MP
+
+config SH_R7780RP
+	bool "R7780RP-1 board support"
+	select CPU_SUBTYPE_SH7780
 
 config SH_R7780MP
 	bool "R7780MP board support"
-	default y
+	select CPU_SUBTYPE_SH7780
 	help
 	  Selecting this option will enable support for the mass-production
 	  version of the R7780RP. If in doubt, say Y.
 
-endmenu
+config SH_R7785RP
+	bool "R7785RP board support"
+	select CPU_SUBTYPE_SH7785
+
+endchoice
 
 endif

arch/sh/boards/renesas/r7780rp/Makefile

@@ -1,7 +1,7 @@
 #
 # Makefile for the R7780RP-1 specific parts of the kernel
 #
-
-obj-y	 := setup.o irq.o
-
+irqinit-y			:= irq-r7780rp.o
+irqinit-$(CONFIG_SH_R7785RP)	:= irq-r7785rp.o
 obj-$(CONFIG_PUSH_SWITCH)	+= psw.o
+obj-y	 			:= setup.o irq.o $(irqinit-y)

arch/sh/boards/renesas/r7780rp/irq-r7780rp.c

@@ -0,0 +1,21 @@
+/*
+ * Renesas Solutions Highlander R7780RP-1 Support.
+ *
+ * Copyright (C) 2002  Atom Create Engineering Co., Ltd.
+ * 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/init.h>
+#include <asm/io.h>
+#include <asm/r7780rp.h>
+
+void __init highlander_init_irq(void)
+{
+	int i;
+
+	for (i = 0; i < 15; i++)
+		make_r7780rp_irq(i);
+}

arch/sh/boards/renesas/r7780rp/irq-r7785rp.c

@@ -0,0 +1,29 @@
+/*
+ * Renesas Solutions Highlander R7780RP-1 Support.
+ *
+ * Copyright (C) 2002  Atom Create Engineering Co., Ltd.
+ * 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/init.h>
+#include <asm/io.h>
+#include <asm/r7780rp.h>
+
+void __init highlander_init_irq(void)
+{
+	ctrl_outw(0x0000, PA_IRLSSR1);	/* FPGA IRLSSR1(CF_CD clear) */
+
+	/* Setup the FPGA IRL */
+	ctrl_outw(0x0000, PA_IRLPRA);	/* FPGA IRLA */
+	ctrl_outw(0xe598, PA_IRLPRB);	/* FPGA IRLB */
+	ctrl_outw(0x7060, PA_IRLPRC);	/* FPGA IRLC */
+	ctrl_outw(0x0000, PA_IRLPRD);	/* FPGA IRLD */
+	ctrl_outw(0x4321, PA_IRLPRE);	/* FPGA IRLE */
+	ctrl_outw(0x0000, PA_IRLPRF);	/* FPGA IRLF */
+
+	make_r7780rp_irq(1);	/* CF card */
+	make_r7780rp_irq(10);	/* On-board ethernet */
+}

arch/sh/boards/renesas/r7780rp/irq.c

@@ -14,10 +14,12 @@
 #include <linux/io.h>
 #include <asm/r7780rp.h>
 
-#ifdef CONFIG_SH_R7780MP
-static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0};
-#else
+#ifdef CONFIG_SH_R7780RP
 static int mask_pos[] = {15, 14, 13, 12, 11, 10, 9, 8, 7, 5, 6, 4, 0, 1, 2, 0};
+#elif defined(CONFIG_SH_R7780MP)
+static int mask_pos[] = {12, 11, 9, 14, 15, 8, 13, 6, 5, 4, 3, 2, 0, 0, 1, 0};
+#elif defined(CONFIG_SH_R7785RP)
+static int mask_pos[] = {2, 11, 2, 2, 2, 2, 9, 8, 7, 5, 10, 2, 2, 2, 2, 2};
 #endif
 
 static void enable_r7780rp_irq(unsigned int irq)
@@ -40,17 +42,10 @@ static struct irq_chip r7780rp_irq_chip __read_mostly = {
 	.mask_ack	= disable_r7780rp_irq,
 };
 
-/*
- * Initialize IRQ setting
- */
-void __init init_r7780rp_IRQ(void)
+void make_r7780rp_irq(unsigned int irq)
 {
-	int i;
-
-	for (i = 0; i < 15; i++) {
-		disable_irq_nosync(i);
-		set_irq_chip_and_handler_name(i, &r7780rp_irq_chip,
-					      handle_level_irq, "level");
-		enable_r7780rp_irq(i);
-	}
+	disable_irq_nosync(irq);
+	set_irq_chip_and_handler_name(irq, &r7780rp_irq_chip,
+				      handle_level_irq, "level");
+	enable_r7780rp_irq(irq);
 }

arch/sh/boards/renesas/r7780rp/setup.c

@@ -1,10 +1,13 @@
 /*
  * arch/sh/boards/renesas/r7780rp/setup.c
  *
+ * Renesas Solutions Highlander Support.
+ *
  * Copyright (C) 2002 Atom Create Engineering Co., Ltd.
  * Copyright (C) 2005 - 2007 Paul Mundt
  *
- * Renesas Solutions Highlander R7780RP-1 Support.
+ * This contains support for the R7780RP-1, R7780MP, and R7785RP
+ * Highlander modules.
  *
  * 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
@@ -18,32 +21,6 @@
 #include <asm/clock.h>
 #include <asm/io.h>
 
-extern void init_r7780rp_IRQ(void);
-
-static struct resource m66596_usb_host_resources[] = {
-	[0] = {
-		.start	= 0xa4800000,
-		.end	= 0xa4ffffff,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= 6,		/* irq number */
-		.end	= 6,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device m66596_usb_host_device = {
-	.name		= "m66596-hcd",
-	.id		= 0,
-	.dev = {
-		.dma_mask		= NULL,		/* don't use dma */
-		.coherent_dma_mask	= 0xffffffff,
-	},
-	.num_resources	= ARRAY_SIZE(m66596_usb_host_resources),
-	.resource	= m66596_usb_host_resources,
-};
-
 static struct resource cf_ide_resources[] = {
 	[0] = {
 		.start	= PA_AREA5_IO + 0x1000,
@@ -56,10 +33,10 @@ static struct resource cf_ide_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[2] = {
-#ifdef CONFIG_SH_R7780MP
-		.start	= 1,
-#else
+#ifdef CONFIG_SH_R7780RP
 		.start	= 4,
+#else
+		.start	= 1,
 #endif
 		.flags	= IORESOURCE_IRQ,
 	},
@@ -92,15 +69,18 @@ static struct resource heartbeat_resources[] = {
 static struct platform_device heartbeat_device = {
 	.name		= "heartbeat",
 	.id		= -1,
+
+	/* R7785RP has a slightly more sensible FPGA.. */
+#ifndef CONFIG_SH_R7785RP
 	.dev	= {
 		.platform_data	= heartbeat_bit_pos,
 	},
+#endif
 	.num_resources	= ARRAY_SIZE(heartbeat_resources),
 	.resource	= heartbeat_resources,
 };
 
 static struct platform_device *r7780rp_devices[] __initdata = {
-	&m66596_usb_host_device,
 	&cf_ide_device,
 	&heartbeat_device,
 };
@@ -110,6 +90,7 @@ static int __init r7780rp_devices_setup(void)
 	return platform_add_devices(r7780rp_devices,
 				    ARRAY_SIZE(r7780rp_devices));
 }
+device_initcall(r7780rp_devices_setup);
 
 /*
  * Platform specific clocks
@@ -140,22 +121,22 @@ static struct clk *r7780rp_clocks[] = {
 
 static void r7780rp_power_off(void)
 {
-#ifdef CONFIG_SH_R7780MP
-	ctrl_outw(0x0001, PA_POFF);
-#endif
+	if (mach_is_r7780mp() || mach_is_r7785rp())
+		ctrl_outw(0x0001, PA_POFF);
 }
 
 /*
  * Initialize the board
  */
-static void __init r7780rp_setup(char **cmdline_p)
+static void __init highlander_setup(char **cmdline_p)
 {
 	u16 ver = ctrl_inw(PA_VERREG);
 	int i;
 
-	device_initcall(r7780rp_devices_setup);
-
-	printk(KERN_INFO "Renesas Solutions Highlander R7780RP-1 support.\n");
+	printk(KERN_INFO "Renesas Solutions Highlander %s support.\n",
+			 mach_is_r7780rp() ? "R7780RP-1" :
+			 mach_is_r7780mp() ? "R7780MP"	 :
+					     "R7785RP");
 
 	printk(KERN_INFO "Board version: %d (revision %d), "
 			 "FPGA version: %d (revision %d)\n",
@@ -173,9 +154,10 @@ static void __init r7780rp_setup(char **cmdline_p)
 	}
 
 	ctrl_outw(0x0000, PA_OBLED);	/* Clear LED. */
-#ifndef CONFIG_SH_R7780MP
-	ctrl_outw(0x0001, PA_SDPOW);	/* SD Power ON */
-#endif
+
+	if (mach_is_r7780rp())
+		ctrl_outw(0x0001, PA_SDPOW);	/* SD Power ON */
+
 	ctrl_outw(ctrl_inw(PA_IVDRCTL) | 0x01, PA_IVDRCTL);	/* Si13112 */
 
 	pm_power_off = r7780rp_power_off;
@@ -184,10 +166,10 @@ static void __init r7780rp_setup(char **cmdline_p)
 /*
  * The Machine Vector
  */
-struct sh_machine_vector mv_r7780rp __initmv = {
-	.mv_name		= "Highlander R7780RP-1",
-	.mv_setup		= r7780rp_setup,
+struct sh_machine_vector mv_highlander __initmv = {
+	.mv_name		= "Highlander",
 	.mv_nr_irqs		= 109,
-	.mv_init_irq		= init_r7780rp_IRQ,
+	.mv_setup		= highlander_setup,
+	.mv_init_irq		= highlander_init_irq,
 };
-ALIAS_MV(r7780rp)
+ALIAS_MV(highlander)