[PATCH] sh: Renesas HS7751RVoIP board support.

From: Paul Mundt <lethal@Linux-SH.ORG>

This adds support for the Renesas Technology Sales HS7751RVoIP board.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/sh/boards/renesas/hs7751rvoip/Makefile

+#
+# Makefile for the HS7751RVoIP specific parts of the kernel
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+
+obj-y	 := mach.o setup.o io.o irq.o led.o
+
+obj-$(CONFIG_PCI) += pci.o
+

arch/sh/boards/renesas/hs7751rvoip/io.c

+/*
+ * linux/arch/sh/kernel/io_hs7751rvoip.c
+ *
+ * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
+ * Based largely on io_se.c.
+ *
+ * I/O routine for Renesas Technology sales HS7751RVoIP
+ *
+ * Initial version only to support LAN access; some
+ * placeholder code from io_hs7751rvoip.c left in with the
+ * expectation of later SuperIO and PCMCIA access.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <asm/io.h>
+#include <asm/hs7751rvoip/hs7751rvoip.h>
+#include <asm/addrspace.h>
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include "../../../drivers/pci/pci-sh7751.h"
+
+extern void *area5_io8_base;	/* Area 5 8bit I/O Base address */
+extern void *area6_io8_base;	/* Area 6 8bit I/O Base address */
+extern void *area5_io16_base;	/* Area 5 16bit I/O Base address */
+extern void *area6_io16_base;	/* Area 6 16bit I/O Base address */
+
+/*
+ * The 7751R HS7751RVoIP uses the built-in PCI controller (PCIC)
+ * of the 7751R processor, and has a SuperIO accessible via the PCI.
+ * The board also includes a PCMCIA controller on its memory bus,
+ * like the other Solution Engine boards.
+ */
+
+#define PCIIOBR		(volatile long *)PCI_REG(SH7751_PCIIOBR)
+#define PCIMBR          (volatile long *)PCI_REG(SH7751_PCIMBR)
+#define PCI_IO_AREA	SH7751_PCI_IO_BASE
+#define PCI_MEM_AREA	SH7751_PCI_CONFIG_BASE
+
+#define PCI_IOMAP(adr)	(PCI_IO_AREA + (adr & ~SH7751_PCIIOBR_MASK))
+
+#if defined(CONFIG_HS7751RVOIP_CODEC)
+#define CODEC_IO_BASE	0x1000
+#endif
+
+#define maybebadio(name,port) \
+  printk("bad PC-like io %s for port 0x%lx at 0x%08x\n", \
+	 #name, (port), (__u32) __builtin_return_address(0))
+
+static inline void delay(void)
+{
+	ctrl_inw(0xa0000000);
+}
+
+static inline unsigned long port2adr(unsigned int port)
+{
+	if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
+		if (port == 0x3f6)
+			return ((unsigned long)area5_io16_base + 0x0c);
+		else
+			return ((unsigned long)area5_io16_base + 0x800 + ((port-0x1f0) << 1));
+	else
+		maybebadio(port2adr, (unsigned long)port);
+	return port;
+}
+
+/* The 7751R HS7751RVoIP seems to have everything hooked */
+/* up pretty normally (nothing on high-bytes only...) so this */
+/* shouldn't be needed */
+static inline int shifted_port(unsigned long port)
+{
+	/* For IDE registers, value is not shifted */
+	if ((0x1f0 <= port && port < 0x1f8) || port == 0x3f6)
+		return 0;
+	else
+		return 1;
+}
+
+#if defined(CONFIG_HS7751RVOIP_CODEC)
+static inline int
+codec_port(unsigned long port)
+{
+	if (CODEC_IO_BASE <= port && port < (CODEC_IO_BASE+0x20))
+		return 1;
+	else
+		return 0;
+}
+#endif
+
+/* In case someone configures the kernel w/o PCI support: in that */
+/* scenario, don't ever bother to check for PCI-window addresses */
+
+/* NOTE: WINDOW CHECK MAY BE A BIT OFF, HIGH PCIBIOS_MIN_IO WRAPS? */
+#if defined(CONFIG_PCI)
+#define CHECK_SH7751_PCIIO(port) \
+  ((port >= PCIBIOS_MIN_IO) && (port < (PCIBIOS_MIN_IO + SH7751_PCI_IO_SIZE)))
+#else
+#define CHECK_SH7751_PCIIO(port) (0)
+#endif
+
+/*
+ * General outline: remap really low stuff [eventually] to SuperIO,
+ * stuff in PCI IO space (at or above window at pci.h:PCIBIOS_MIN_IO)
+ * is mapped through the PCI IO window.  Stuff with high bits (PXSEG)
+ * should be way beyond the window, and is used  w/o translation for
+ * compatibility.
+ */
+unsigned char hs7751rvoip_inb(unsigned long port)
+{
+	if (PXSEG(port))
+		return *(volatile unsigned char *)port;
+#if defined(CONFIG_HS7751RVOIP_CODEC)
+	else if (codec_port(port))
+		return *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE));
+#endif
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
+		return *(volatile unsigned char *)PCI_IOMAP(port);
+	else
+		return (*(volatile unsigned short *)port2adr(port) & 0xff);
+}
+
+unsigned char hs7751rvoip_inb_p(unsigned long port)
+{
+	unsigned char v;
+
+        if (PXSEG(port))
+                v = *(volatile unsigned char *)port;
+#if defined(CONFIG_HS7751RVOIP_CODEC)
+	else if (codec_port(port))
+		v = *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE));
+#endif
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
+                v = *(volatile unsigned char *)PCI_IOMAP(port);
+	else
+		v = (*(volatile unsigned short *)port2adr(port) & 0xff);
+	delay();
+	return v;
+}
+
+unsigned short hs7751rvoip_inw(unsigned long port)
+{
+        if (PXSEG(port))
+                return *(volatile unsigned short *)port;
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
+                return *(volatile unsigned short *)PCI_IOMAP(port);
+	else
+		maybebadio(inw, port);
+	return 0;
+}
+
+unsigned int hs7751rvoip_inl(unsigned long port)
+{
+        if (PXSEG(port))
+                return *(volatile unsigned long *)port;
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
+                return *(volatile unsigned long *)PCI_IOMAP(port);
+	else
+		maybebadio(inl, port);
+	return 0;
+}
+
+void hs7751rvoip_outb(unsigned char value, unsigned long port)
+{
+
+        if (PXSEG(port))
+                *(volatile unsigned char *)port = value;
+#if defined(CONFIG_HS7751RVOIP_CIDEC)
+	else if (codec_port(port))
+		*(volatile unsigned cjar *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value;
+#endif
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
+        	*(unsigned char *)PCI_IOMAP(port) = value;
+	else
+		*(volatile unsigned short *)port2adr(port) = value;
+}
+
+void hs7751rvoip_outb_p(unsigned char value, unsigned long port)
+{
+        if (PXSEG(port))
+                *(volatile unsigned char *)port = value;
+#if defined(CONFIG_HS7751RVOIP_CIDEC)
+	else if (codec_port(port))
+		*(volatile unsigned cjar *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = value;
+#endif
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
+        	*(unsigned char *)PCI_IOMAP(port) = value;
+	else
+		*(volatile unsigned short *)port2adr(port) = value;
+	delay();
+}
+
+void hs7751rvoip_outw(unsigned short value, unsigned long port)
+{
+        if (PXSEG(port))
+                *(volatile unsigned short *)port = value;
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
+        	*(unsigned short *)PCI_IOMAP(port) = value;
+	else
+		maybebadio(outw, port);
+}
+
+void hs7751rvoip_outl(unsigned int value, unsigned long port)
+{
+        if (PXSEG(port))
+                *(volatile unsigned long *)port = value;
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
+        	*((unsigned long *)PCI_IOMAP(port)) = value;
+	else
+		maybebadio(outl, port);
+}
+
+void hs7751rvoip_insb(unsigned long port, void *addr, unsigned long count)
+{
+	if (PXSEG(port))
+		while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)port;
+#if defined(CONFIG_HS7751RVOIP_CODEC)
+	else if (codec_port(port))
+		while (count--) *((unsigned char *) addr)++ = *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE));
+#endif
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
+		volatile __u8 *bp = (__u8 *)PCI_IOMAP(port);
+
+		while (count--) *((volatile unsigned char *) addr)++ = *bp;
+	} else {
+		volatile __u16 *p = (volatile unsigned short *)port2adr(port);
+
+		while (count--) *((unsigned char *) addr)++ = *p & 0xff;
+	}
+}
+
+void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count)
+{
+	volatile __u16 *p;
+
+	if (PXSEG(port))
+		p = (volatile unsigned short *)port;
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
+		p = (volatile unsigned short *)PCI_IOMAP(port);
+	else
+		p = (volatile unsigned short *)port2adr(port);
+	while (count--) *((__u16 *) addr)++ = *p;
+}
+
+void hs7751rvoip_insl(unsigned long port, void *addr, unsigned long count)
+{
+	if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
+		volatile __u32 *p = (__u32 *)PCI_IOMAP(port);
+
+		while (count--) *((__u32 *) addr)++ = *p;
+	} else
+		maybebadio(insl, port);
+}
+
+void hs7751rvoip_outsb(unsigned long port, const void *addr, unsigned long count)
+{
+	if (PXSEG(port))
+		while (count--) *(volatile unsigned char *)port = *((unsigned char *) addr)++;
+#if defined(CONFIG_HS7751RVOIP_CODEC)
+	else if (codec_port(port))
+		while (count--) *(volatile unsigned char *)((unsigned long)area6_io8_base+(port-CODEC_IO_BASE)) = *((unsigned char *) addr)++;
+#endif
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
+		volatile __u8 *bp = (__u8 *)PCI_IOMAP(port);
+
+		while (count--) *bp = *((volatile unsigned char *) addr)++;
+	} else {
+		volatile __u16 *p = (volatile unsigned short *)port2adr(port);
+
+		while (count--) *p = *((unsigned char *) addr)++;
+	}
+}
+
+void hs7751rvoip_outsw(unsigned long port, const void *addr, unsigned long count)
+{
+	volatile __u16 *p;
+
+	if (PXSEG(port))
+		p = (volatile unsigned short *)port;
+	else if (CHECK_SH7751_PCIIO(port) || shifted_port(port))
+		p = (volatile unsigned short *)PCI_IOMAP(port);
+	else
+		p = (volatile unsigned short *)port2adr(port);
+	while (count--) *p = *((__u16 *) addr)++;
+}
+
+void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count)
+{
+	if (CHECK_SH7751_PCIIO(port) || shifted_port(port)) {
+		volatile __u32 *p = (__u32 *)PCI_IOMAP(port);
+
+		while (count--) *p = *((__u32 *) addr)++;
+	} else
+		maybebadio(outsl, port);
+}
+
+void *hs7751rvoip_ioremap(unsigned long offset, unsigned long size)
+{
+	if (offset >= 0xfd000000)
+		return (void *)offset;
+	else
+		return (void *)P2SEGADDR(offset);
+}
+EXPORT_SYMBOL(hs7751rvoip_ioremap);
+
+unsigned long hs7751rvoip_isa_port2addr(unsigned long offset)
+{
+	return port2adr(offset);
+}

arch/sh/boards/renesas/hs7751rvoip/irq.c

+/*
+ * linux/arch/sh/boards/renesas/hs7751rvoip/irq.c
+ *
+ * Copyright (C) 2000  Kazumoto Kojima
+ *
+ * Renesas Technology Sales HS7751RVoIP Support.
+ *
+ * Modified for HS7751RVoIP by
+ * Atom Create Engineering Co., Ltd. 2002.
+ * Lineo uSolutions, Inc. 2003.
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/hs7751rvoip/hs7751rvoip.h>
+
+static int mask_pos[] = {8, 9, 10, 11, 12, 13, 0, 1, 2, 3, 4, 5, 6, 7};
+
+static void enable_hs7751rvoip_irq(unsigned int irq);
+static void disable_hs7751rvoip_irq(unsigned int irq);
+
+/* shutdown is same as "disable" */
+#define shutdown_hs7751rvoip_irq disable_hs7751rvoip_irq
+
+static void ack_hs7751rvoip_irq(unsigned int irq);
+static void end_hs7751rvoip_irq(unsigned int irq);
+
+static unsigned int startup_hs7751rvoip_irq(unsigned int irq)
+{
+	enable_hs7751rvoip_irq(irq);
+	return 0; /* never anything pending */
+}
+
+static void disable_hs7751rvoip_irq(unsigned int irq)
+{
+	unsigned long flags;
+	unsigned short val;
+	unsigned short mask = 0xffff ^ (0x0001 << mask_pos[irq]);
+
+	/* Set the priority in IPR to 0 */
+	local_irq_save(flags);
+	val = ctrl_inw(IRLCNTR3);
+	val &= mask;
+	ctrl_outw(val, IRLCNTR3);
+	local_irq_restore(flags);
+}
+
+static void enable_hs7751rvoip_irq(unsigned int irq)
+{
+	unsigned long flags;
+	unsigned short val;
+	unsigned short value = (0x0001 << mask_pos[irq]);
+
+	/* Set priority in IPR back to original value */
+	local_irq_save(flags);
+	val = ctrl_inw(IRLCNTR3);
+	val |= value;
+	ctrl_outw(val, IRLCNTR3);
+	local_irq_restore(flags);
+}
+
+static void ack_hs7751rvoip_irq(unsigned int irq)
+{
+	disable_hs7751rvoip_irq(irq);
+}
+
+static void end_hs7751rvoip_irq(unsigned int irq)
+{
+	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
+		enable_hs7751rvoip_irq(irq);
+}
+
+static struct hw_interrupt_type hs7751rvoip_irq_type = {
+	"HS7751RVoIP IRQ",
+	startup_hs7751rvoip_irq,
+	shutdown_hs7751rvoip_irq,
+	enable_hs7751rvoip_irq,
+	disable_hs7751rvoip_irq,
+	ack_hs7751rvoip_irq,
+	end_hs7751rvoip_irq,
+};
+
+static void make_hs7751rvoip_irq(unsigned int irq)
+{
+	disable_irq_nosync(irq);
+	irq_desc[irq].handler = &hs7751rvoip_irq_type;
+	disable_hs7751rvoip_irq(irq);
+}
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_hs7751rvoip_IRQ(void)
+{
+	int i;
+
+	/* IRL0=ON HOOK1
+	 * IRL1=OFF HOOK1
+	 * IRL2=ON HOOK2
+	 * IRL3=OFF HOOK2
+	 * IRL4=Ringing Detection
+	 * IRL5=CODEC
+	 * IRL6=Ethernet
+	 * IRL7=Ethernet Hub
+	 * IRL8=USB Communication
+	 * IRL9=USB Connection
+	 * IRL10=USB DMA
+	 * IRL11=CF Card
+	 * IRL12=PCMCIA
+	 * IRL13=PCI Slot
+	 */
+	ctrl_outw(0x9876, IRLCNTR1);
+	ctrl_outw(0xdcba, IRLCNTR2);
+	ctrl_outw(0x0050, IRLCNTR4);
+	ctrl_outw(0x4321, IRLCNTR5);
+
+	for (i=0; i<14; i++)
+		make_hs7751rvoip_irq(i);
+}

arch/sh/boards/renesas/hs7751rvoip/led.c

+/*
+ * linux/arch/sh/kernel/setup_hs7751rvoip.c
+ *
+ * Copyright (C) 2000  Kazumoto Kojima
+ *
+ * Renesas Technology Sales HS7751RVoIP Support.
+ *
+ * Modified for HS7751RVoIP by
+ * Atom Create Engineering Co., Ltd. 2002.
+ * Lineo uSolutions, Inc. 2003.
+ */
+
+#include <linux/config.h>
+#include <asm/io.h>
+#include <asm/hs7751rvoip/hs7751rvoip.h>
+
+extern unsigned int debug_counter;
+
+void debug_led_disp(void)
+{
+	unsigned short value;
+
+	value = (unsigned char)debug_counter++;
+	ctrl_outb((0xf0|value), PA_OUTPORTR);
+	if (value == 0x0f)
+		debug_counter = 0;
+}

arch/sh/boards/renesas/hs7751rvoip/mach.c

+/*
+ * linux/arch/sh/kernel/mach_hs7751rvoip.c
+ *
+ * Minor tweak of mach_se.c file to reference hs7751rvoip-specific items.
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * Machine vector for the Renesas Technology sales HS7751RVoIP
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+
+#include <asm/machvec.h>
+#include <asm/rtc.h>
+#include <asm/irq.h>
+#include <asm/hs7751rvoip/io.h>
+
+extern void init_hs7751rvoip_IRQ(void);
+extern void *hs7751rvoip_ioremap(unsigned long, unsigned long);
+
+/*
+ * The Machine Vector
+ */
+
+struct sh_machine_vector mv_hs7751rvoip __initmv = {
+	.mv_nr_irqs		= 72,
+
+	.mv_inb			= hs7751rvoip_inb,
+	.mv_inw			= hs7751rvoip_inw,
+	.mv_inl			= hs7751rvoip_inl,
+	.mv_outb		= hs7751rvoip_outb,
+	.mv_outw		= hs7751rvoip_outw,
+	.mv_outl		= hs7751rvoip_outl,
+
+	.mv_inb_p		= hs7751rvoip_inb_p,
+	.mv_inw_p		= hs7751rvoip_inw,
+	.mv_inl_p		= hs7751rvoip_inl,
+	.mv_outb_p		= hs7751rvoip_outb_p,
+	.mv_outw_p		= hs7751rvoip_outw,
+	.mv_outl_p		= hs7751rvoip_outl,
+
+	.mv_insb		= hs7751rvoip_insb,
+	.mv_insw		= hs7751rvoip_insw,
+	.mv_insl		= hs7751rvoip_insl,
+	.mv_outsb		= hs7751rvoip_outsb,
+	.mv_outsw		= hs7751rvoip_outsw,
+	.mv_outsl		= hs7751rvoip_outsl,
+
+	.mv_ioremap		= hs7751rvoip_ioremap,
+	.mv_isa_port2addr	= hs7751rvoip_isa_port2addr,
+	.mv_init_irq		= init_hs7751rvoip_IRQ,
+};
+ALIAS_MV(hs7751rvoip)

arch/sh/boards/renesas/hs7751rvoip/pci.c

+/*
+ * linux/arch/sh/kernel/pci-hs7751rvoip.c
+ *
+ * Author:  Ian DaSilva (idasilva@mvista.com)
+ *
+ * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * PCI initialization for the Renesas SH7751R HS7751RVoIP board
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/module.h>
+
+#include <asm/io.h>
+#include "../../../drivers/pci/pci-sh7751.h"
+#include <asm/hs7751rvoip/hs7751rvoip.h>
+
+#define PCIMCR_MRSET_OFF	0xBFFFFFFF
+#define PCIMCR_RFSH_OFF		0xFFFFFFFB
+
+/*
+ * Only long word accesses of the PCIC's internal local registers and the
+ * configuration registers from the CPU is supported.
+ */
+#define PCIC_WRITE(x,v) writel((v), PCI_REG(x))
+#define PCIC_READ(x) readl(PCI_REG(x))
+
+/*
+ * Description:  This function sets up and initializes the pcic, sets
+ * up the BARS, maps the DRAM into the address space etc, etc.
+ */
+int __init pcibios_init_platform(void)
+{
+	unsigned long bcr1, wcr1, wcr2, wcr3, mcr;
+	unsigned short bcr2, bcr3;
+
+	/*
+	 * Initialize the slave bus controller on the pcic.  The values used
+	 * here should not be hardcoded, but they should be taken from the bsc
+	 * on the processor, to make this function as generic as possible.
+	 * (i.e. Another sbc may usr different SDRAM timing settings -- in order
+	 * for the pcic to work, its settings need to be exactly the same.)
+	 */
+	bcr1 = (*(volatile unsigned long *)(SH7751_BCR1));
+	bcr2 = (*(volatile unsigned short *)(SH7751_BCR2));
+	bcr3 = (*(volatile unsigned short *)(SH7751_BCR3));
+	wcr1 = (*(volatile unsigned long *)(SH7751_WCR1));
+	wcr2 = (*(volatile unsigned long *)(SH7751_WCR2));
+	wcr3 = (*(volatile unsigned long *)(SH7751_WCR3));
+	mcr = (*(volatile unsigned long *)(SH7751_MCR));
+
+	bcr1 = bcr1 | 0x00080000;  /* Enable Bit 19, BREQEN */
+	(*(volatile unsigned long *)(SH7751_BCR1)) = bcr1;
+
+	bcr1 = bcr1 | 0x40080000;  /* Enable Bit 19 BREQEN, set PCIC to slave */
+	PCIC_WRITE(SH7751_PCIBCR1, bcr1);	/* PCIC BCR1 */
+	PCIC_WRITE(SH7751_PCIBCR2, bcr2);	/* PCIC BCR2 */
+	PCIC_WRITE(SH7751_PCIBCR3, bcr3);	/* PCIC BCR3 */
+	PCIC_WRITE(SH7751_PCIWCR1, wcr1);	/* PCIC WCR1 */
+	PCIC_WRITE(SH7751_PCIWCR2, wcr2);	/* PCIC WCR2 */
+	PCIC_WRITE(SH7751_PCIWCR3, wcr3);	/* PCIC WCR3 */
+	mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
+	PCIC_WRITE(SH7751_PCIMCR, mcr);		/* PCIC MCR */
+
+	/* Enable all interrupts, so we know what to fix */
+	PCIC_WRITE(SH7751_PCIINTM, 0x0000c3ff);
+	PCIC_WRITE(SH7751_PCIAINTM, 0x0000380f);
+
+	/* Set up standard PCI config registers */
+	PCIC_WRITE(SH7751_PCICONF1, 0xFB900047); /* Bus Master, Mem & I/O access */
+	PCIC_WRITE(SH7751_PCICONF2, 0x00000000); /* PCI Class code & Revision ID */
+	PCIC_WRITE(SH7751_PCICONF4, 0xab000001); /* PCI I/O address (local regs) */
+	PCIC_WRITE(SH7751_PCICONF5, 0x0c000000); /* PCI MEM address (local RAM)  */
+	PCIC_WRITE(SH7751_PCICONF6, 0xd0000000); /* PCI MEM address (unused) */
+	PCIC_WRITE(SH7751_PCICONF11, 0x35051054); /* PCI Subsystem ID & Vendor ID */
+	PCIC_WRITE(SH7751_PCILSR0, 0x03f00000);	/* MEM (full 64M exposed) */
+	PCIC_WRITE(SH7751_PCILSR1, 0x00000000); /* MEM (unused) */
+	PCIC_WRITE(SH7751_PCILAR0, 0x0c000000); /* MEM (direct map from PCI) */
+	PCIC_WRITE(SH7751_PCILAR1, 0x00000000); /* MEM (unused) */
+
+	/* Now turn it on... */
+	PCIC_WRITE(SH7751_PCICR, 0xa5000001);
+
+	/*
+	 * Set PCIMBR and PCIIOBR here, assuming a single window
+	 * (16M MEM, 256K IO) is enough.  If a larger space is
+	 * needed, the readx/writex and inx/outx functions will
+	 * have to do more (e.g. setting registers for each call).
+	 */
+
+	/*
+	 * Set the MBR so PCI address is one-to-one with window,
+	 * meaning all calls go straight through... use ifdef to
+	 * catch erroneous assumption.
+	 */
+	BUG_ON(PCIBIOS_MIN_MEM != SH7751_PCI_MEMORY_BASE);
+
+	PCIC_WRITE(SH7751_PCIMBR, PCIBIOS_MIN_MEM);
+
+	/* Set IOBR for window containing area specified in pci.h */
+	PCIC_WRITE(SH7751_PCIIOBR, (PCIBIOS_MIN_IO & SH7751_PCIIOBR_MASK));
+
+	/* All done, may as well say so... */
+	printk("SH7751R PCI: Finished initialization of the PCI controller\n");
+
+	return 1;
+}
+
+int __init pcibios_map_platform_irq(u8 slot, u8 pin)
+{
+        switch (slot) {
+	case 0: return IRQ_PCISLOT;	/* PCI Extend slot */
+	case 1: return IRQ_PCMCIA;	/* PCI Cardbus Bridge */
+	case 2: return IRQ_PCIETH;	/* Realtek Ethernet controller */
+	case 3: return IRQ_PCIHUB;	/* Realtek Ethernet Hub controller */
+	default:
+		printk("PCI: Bad IRQ mapping request for slot %d\n", slot);
+		return -1;
+	}
+}
+
+static struct resource sh7751_io_resource = {
+	.name	= "SH7751_IO",
+	.start	= 0x4000,
+	.end	= 0x4000 + SH7751_PCI_IO_SIZE - 1,
+	.flags	= IORESOURCE_IO
+};
+
+static struct resource sh7751_mem_resource = {
+	.name	= "SH7751_mem",
+	.start	= SH7751_PCI_MEMORY_BASE,
+	.end	= SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
+	.flags	= IORESOURCE_MEM
+};
+
+extern struct pci_ops sh7751_pci_ops;
+
+struct pci_channel board_pci_channels[] = {
+	{ &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
+	{ NULL, NULL, NULL, 0, 0 },
+};
+EXPORT_SYMBOL(board_pci_channels);

arch/sh/boards/renesas/hs7751rvoip/setup.c

+/*
+ * linux/arch/sh/kernel/setup_hs7751rvoip.c
+ *
+ * Copyright (C) 2000  Kazumoto Kojima
+ *
+ * Renesas Technology Sales HS7751RVoIP Support.
+ *
+ * Modified for HS7751RVoIP by
+ * Atom Create Engineering Co., Ltd. 2002.
+ * Lineo uSolutions, Inc. 2003.
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+
+#include <linux/hdreg.h>
+#include <linux/ide.h>
+#include <asm/io.h>
+#include <asm/hs7751rvoip/hs7751rvoip.h>
+
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+
+/* defined in mm/ioremap.c */
+extern void * p3_ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags);
+
+unsigned int debug_counter;
+
+const char *get_system_type(void)
+{
+	return "HS7751RVoIP";
+}
+
+/*
+ * Initialize the board
+ */
+void __init platform_setup(void)
+{
+	printk(KERN_INFO "Renesas Technology Sales HS7751RVoIP-2 support.\n");
+	ctrl_outb(0xf0, PA_OUTPORTR);
+	debug_counter = 0;
+}
+
+void *area5_io8_base;
+void *area6_io8_base;
+void *area5_io16_base;
+void *area6_io16_base;
+
+int __init cf_init(void)
+{
+	pgprot_t prot;
+	unsigned long paddrbase, psize;
+
+	/* open I/O area window */
+	paddrbase = virt_to_phys((void *)(PA_AREA5_IO+0x00000800));
+	psize = PAGE_SIZE;
+	prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_COM16);
+	area5_io16_base = p3_ioremap(paddrbase, psize, prot.pgprot);
+	if (!area5_io16_base) {
+		printk("allocate_cf_area : can't open CF I/O window!\n");
+		return -ENOMEM;
+	}
+
+	/* XXX : do we need attribute and common-memory area also? */
+
+	paddrbase = virt_to_phys((void *)PA_AREA6_IO);
+	psize = PAGE_SIZE;
+#if defined(CONFIG_HS7751RVOIP_CODEC)
+	prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_COM8);
+#else
+	prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO8);
+#endif
+	area6_io8_base = p3_ioremap(paddrbase, psize, prot.pgprot);
+	if (!area6_io8_base) {
+		printk("allocate_cf_area : can't open CODEC I/O 8bit window!\n");
+		return -ENOMEM;
+	}
+	prot = PAGE_KERNEL_PCC(0, _PAGE_PCC_IO16);
+	area6_io16_base = p3_ioremap(paddrbase, psize, prot.pgprot);
+	if (!area6_io16_base) {
+		printk("allocate_cf_area : can't open CODEC I/O 16bit window!\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+__initcall (cf_init);

include/asm-sh/hs7751rvoip/hs7751rvoip.h

+#ifndef __ASM_SH_RENESAS_HS7751RVOIP_H
+#define __ASM_SH_RENESAS_HS7751RVOIP_H
+
+/*
+ * linux/include/asm-sh/hs7751rvoip/hs7751rvoip.h
+ *
+ * Copyright (C) 2000  Atom Create Engineering Co., Ltd.
+ *
+ * Renesas Technology Sales HS7751RVoIP support
+ */
+
+/* Box specific addresses.  */
+
+#define PA_BCR		0xa4000000	/* FPGA */
+#define PA_SLICCNTR1	0xa4000006	/* SLIC PIO Control 1 */
+#define PA_SLICCNTR2	0xa4000008	/* SLIC PIO Control 2 */
+#define PA_DMACNTR	0xa400000a	/* USB DMA Control */
+#define PA_INPORTR	0xa400000c	/* Input Port Register */
+#define PA_OUTPORTR	0xa400000e	/* Output Port Reguster */
+#define PA_VERREG	0xa4000014	/* FPGA Version Register */
+
+#define PA_AREA5_IO	0xb4000000	/* Area 5 IO Memory */
+#define PA_AREA6_IO	0xb8000000	/* Area 6 IO Memory */
+#define PA_IDE_OFFSET	0x1f0		/* CF IDE Offset */
+
+#define IRLCNTR1	(PA_BCR + 0)	/* Interrupt Control Register1 */
+#define IRLCNTR2	(PA_BCR + 2)	/* Interrupt Control Register2 */
+#define IRLCNTR3	(PA_BCR + 4)	/* Interrupt Control Register3 */
+#define IRLCNTR4	(PA_BCR + 16)	/* Interrupt Control Register4 */
+#define IRLCNTR5	(PA_BCR + 18)	/* Interrupt Control Register5 */
+
+#define IRQ_PCIETH	6		/* PCI Ethernet IRQ */
+#define IRQ_PCIHUB	7		/* PCI Ethernet Hub IRQ */
+#define IRQ_USBCOM	8		/* USB Comunication IRQ */
+#define IRQ_USBCON	9		/* USB Connect IRQ */
+#define IRQ_USBDMA	10		/* USB DMA IRQ */
+#define IRQ_CFCARD	11		/* CF Card IRQ */
+#define IRQ_PCMCIA	12		/* PCMCIA IRQ */
+#define IRQ_PCISLOT	13		/* PCI Slot #1 IRQ */
+#define IRQ_ONHOOK1	0		/* ON HOOK1 IRQ */
+#define IRQ_OFFHOOK1	1		/* OFF HOOK1 IRQ */
+#define IRQ_ONHOOK2	2		/* ON HOOK2 IRQ */
+#define IRQ_OFFHOOK2	3		/* OFF HOOK2 IRQ */
+#define	IRQ_RINGING	4		/* Ringing IRQ */
+#define	IRQ_CODEC	5		/* CODEC IRQ */
+
+#endif  /* __ASM_SH_RENESAS_HS7751RVOIP */

include/asm-sh/hs7751rvoip/ide.h

+#ifndef __ASM_SH_HS7751RVOIP_IDE_H
+#define __ASM_SH_HS7751RVOIP_IDE_H
+
+/* Nothing to see here.. */
+#include <asm/hs7751rvoip/hs7751rvoip.h>
+
+#endif /* __ASM_SH_HS7751RVOIP_IDE_H */
+

include/asm-sh/hs7751rvoip/io.h

+/*
+ * include/asm-sh/hs7751rvoip/hs7751rvoip.h
+ *
+ * Modified version of io_se.h for the hs7751rvoip-specific functions.
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * IO functions for an Renesas Technology sales HS7751RVOIP
+ */
+
+#ifndef _ASM_SH_IO_HS7751RVOIP_H
+#define _ASM_SH_IO_HS7751RVOIP_H
+
+#include <asm/io_generic.h>
+
+extern unsigned char hs7751rvoip_inb(unsigned long port);
+extern unsigned short hs7751rvoip_inw(unsigned long port);
+extern unsigned int hs7751rvoip_inl(unsigned long port);
+
+extern void hs7751rvoip_outb(unsigned char value, unsigned long port);
+extern void hs7751rvoip_outw(unsigned short value, unsigned long port);
+extern void hs7751rvoip_outl(unsigned int value, unsigned long port);
+
+extern unsigned char hs7751rvoip_inb_p(unsigned long port);
+extern void hs7751rvoip_outb_p(unsigned char value, unsigned long port);
+
+extern void hs7751rvoip_insb(unsigned long port, void *addr, unsigned long count);
+extern void hs7751rvoip_insw(unsigned long port, void *addr, unsigned long count);
+extern void hs7751rvoip_insl(unsigned long port, void *addr, unsigned long count);
+extern void hs7751rvoip_outsb(unsigned long port, const void *addr, unsigned long count);
+extern void hs7751rvoip_outsw(unsigned long port, const void *addr, unsigned long count);
+extern void hs7751rvoip_outsl(unsigned long port, const void *addr, unsigned long count);
+
+extern void *hs7751rvoip_ioremap(unsigned long offset, unsigned long size);
+
+extern unsigned long hs7751rvoip_isa_port2addr(unsigned long offset);
+
+#endif /* _ASM_SH_IO_HS7751RVOIP_H */