sh: L-BOX RE2 support.

This adds support for the L-BOX RE2 router.

	http://www.nttcom.co.jp/l-box/

L-BOX RE2 is a SH7751R-based router. It has CF, Cardbus, serial,
and LAN x2. This is one of the very few SH boards that a general
person can obtain now.

The L-BOX shipped with a 2.4.28 kernel, this is a rewritten patch
adding it to current git.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/Kconfig

@@ -244,6 +244,12 @@ config SH_7619_SOLUTION_ENGINE
 	  Select 7619 SolutionEngine if configuring for a Hitachi SH7619
 	  evaluation board.
 	
+config SH_LBOX_RE2
+	bool "L-BOX RE2"
+	select CPU_SUBTYPE_SH7751R
+	help
+	  Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
+
 config SH_UNKNOWN
 	bool "BareCPU"
 	help

arch/sh/Makefile

@@ -110,6 +110,7 @@ machdir-$(CONFIG_SH_TITAN)			:= titan
 machdir-$(CONFIG_SH_SHMIN)			:= shmin
 machdir-$(CONFIG_SH_7206_SOLUTION_ENGINE)	:= se/7206
 machdir-$(CONFIG_SH_7619_SOLUTION_ENGINE)	:= se/7619
+machdir-$(CONFIG_SH_LBOX_RE2)			:= lboxre2
 machdir-$(CONFIG_SH_UNKNOWN)			:= unknown
 
 incdir-y			:= $(notdir $(machdir-y))

arch/sh/boards/lboxre2/Makefile

+#
+# Makefile for the L-BOX RE2 specific parts of the kernel
+# Copyright (c) 2007 Nobuhiro Iwamatsu
+
+obj-y	 := setup.o irq.o

arch/sh/boards/lboxre2/irq.c

+/*
+ * linux/arch/sh/boards/lboxre2/irq.c
+ *
+ * Copyright (C) 2007 Nobuhiro Iwamatsu
+ *
+ * NTT COMWARE L-BOX RE2 Support.
+ *
+ * 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/interrupt.h>
+#include <linux/irq.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <asm/lboxre2.h>
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_lboxre2_IRQ(void)
+{
+	make_imask_irq(IRQ_CF1);
+	make_imask_irq(IRQ_CF0);
+	make_imask_irq(IRQ_INTD);
+	make_imask_irq(IRQ_ETH1);
+	make_imask_irq(IRQ_ETH0);
+	make_imask_irq(IRQ_INTA);
+}

arch/sh/boards/lboxre2/setup.c

+/*
+ * linux/arch/sh/boards/lbox/setup.c
+ *
+ * Copyright (C) 2007 Nobuhiro Iwamatsu
+ *
+ * NTT COMWARE L-BOX RE2 Support
+ *
+ * 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/platform_device.h>
+#include <linux/pata_platform.h>
+#include <asm/machvec.h>
+#include <asm/lboxre2.h>
+#include <asm/io.h>
+
+static struct resource cf_ide_resources[] = {
+	[0] = {
+		.start  = 0x1f0,
+		.end    = 0x1f0 + 8 ,
+		.flags  = IORESOURCE_IO,
+	},
+	[1] = {
+		.start  = 0x1f0 + 0x206,
+		.end    = 0x1f0 +8 + 0x206 + 8,
+		.flags  = IORESOURCE_IO,
+	},
+	[2] = {
+		.start  = IRQ_CF0,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device cf_ide_device  = {
+	.name           = "pata_platform",
+	.id             = -1,
+	.num_resources  = ARRAY_SIZE(cf_ide_resources),
+	.resource       = cf_ide_resources,
+};
+
+static struct platform_device *lboxre2_devices[] __initdata = {
+       &cf_ide_device,
+};
+
+static int __init lboxre2_devices_setup(void)
+{
+	u32 cf0_io_base;	/* Boot CF base address */
+	pgprot_t prot;
+	unsigned long paddrbase, psize;
+
+	/* open I/O area window */
+	paddrbase = virt_to_phys((void*)CONFIG_CF0_BASE_ADDR);
+	psize = PAGE_SIZE;
+	prot = PAGE_KERNEL_PCC( 1 , _PAGE_PCC_IO16);
+	cf0_io_base = (u32)p3_ioremap(paddrbase, psize, prot.pgprot);
+	if (!cf0_io_base) {
+		printk(KERN_ERR "%s : can't open CF I/O window!\n" , __func__ );
+		return -ENOMEM;
+	}
+
+	cf_ide_resources[0].start += cf0_io_base ;
+	cf_ide_resources[0].end   += cf0_io_base ;
+	cf_ide_resources[1].start += cf0_io_base ;
+	cf_ide_resources[1].end   += cf0_io_base ;
+
+	return platform_add_devices(lboxre2_devices,
+			ARRAY_SIZE(lboxre2_devices));
+
+}
+device_initcall(lboxre2_devices_setup);
+
+/*
+ * The Machine Vector
+ */
+struct sh_machine_vector mv_lboxre2 __initmv = {
+	.mv_name		= "L-BOX RE2",
+	.mv_nr_irqs		= 72,
+	.mv_init_irq		= init_lboxre2_IRQ,
+};
+ALIAS_MV(lboxre2)

arch/sh/drivers/pci/Makefile

@@ -18,3 +18,4 @@ obj-$(CONFIG_SH_SH03)			+= ops-sh03.o fixups-sh03.o
 obj-$(CONFIG_SH_HIGHLANDER)		+= ops-r7780rp.o fixups-r7780rp.o
 obj-$(CONFIG_SH_TITAN)			+= ops-titan.o
 obj-$(CONFIG_SH_LANDISK)		+= ops-landisk.o
+obj-$(CONFIG_SH_LBOX_RE2)		+= ops-lboxre2.o fixups-lboxre2.o

arch/sh/drivers/pci/fixups-lboxre2.c

+/*
+ * arch/sh/drivers/pci/fixups-lboxre2.c
+ *
+ * L-BOX RE2 PCI fixups
+ *
+ * Copyright (C) 2007 Nobuhiro Iwamatsu
+ *
+ * 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 "pci-sh4.h"
+
+#define PCIMCR_MRSET_OFF	0xBFFFFFFF
+#define PCIMCR_RFSH_OFF		0xFFFFFFFB
+
+int pci_fixup_pcic(void)
+{
+	unsigned long bcr1, mcr;
+
+	bcr1 = inl(SH7751_BCR1);
+	bcr1 |= 0x40080000;	/* Enable Bit 19 BREQEN, set PCIC to slave */
+	pci_write_reg(bcr1, SH4_PCIBCR1);
+
+	/* Enable all interrupts, so we known what to fix */
+	pci_write_reg(0x0000c3ff, SH4_PCIINTM);
+	pci_write_reg(0x0000380f, SH4_PCIAINTM);
+	pci_write_reg(0xfb900047, SH7751_PCICONF1);
+	pci_write_reg(0xab000001, SH7751_PCICONF4);
+
+	mcr = inl(SH7751_MCR);
+	mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
+	pci_write_reg(mcr, SH4_PCIMCR);
+
+	pci_write_reg(0x0c000000, SH7751_PCICONF5);
+	pci_write_reg(0xd0000000, SH7751_PCICONF6);
+	pci_write_reg(0x0c000000, SH4_PCILAR0);
+	pci_write_reg(0x00000000, SH4_PCILAR1);
+
+	return 0;
+}

arch/sh/drivers/pci/ops-lboxre2.c

+/*
+ * linux/arch/sh/drivers/pci/ops-lboxre2.c
+ *
+ * Copyright (C) 2007 Nobuhiro Iwamatsu
+ *
+ * PCI initialization for the NTT COMWARE L-BOX RE2
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/io.h>
+#include <asm/lboxre2.h>
+#include "pci-sh4.h"
+
+static char lboxre2_irq_tab[] __initdata = {
+	IRQ_ETH0, IRQ_ETH1, IRQ_INTA, IRQ_INTD,
+};
+
+int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
+{
+	return lboxre2_irq_tab[slot];
+}
+
+static struct resource sh7751_io_resource = {
+	.name	= "SH7751_IO",
+	.start	= SH7751_PCI_IO_BASE ,
+	.end	= SH7751_PCI_IO_BASE + 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[] = {
+	{ &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
+	{ NULL, NULL, NULL, 0, 0 },
+};
+
+EXPORT_SYMBOL(board_pci_channels);
+
+static struct sh4_pci_address_map sh7751_pci_map = {
+	.window0	= {
+		.base	= SH7751_CS3_BASE_ADDR,
+		.size	= 0x04000000,
+	},
+	.window1	= {
+		.base	= 0x00000000,	/* Unused */
+		.size	= 0x00000000,	/* Unused */
+	},
+	.flags	= SH4_PCIC_NO_RESET,
+};
+
+int __init pcibios_init_platform(void)
+{
+	return sh7751_pcic_init(&sh7751_pci_map);
+}

arch/sh/drivers/pci/pci-sh7751.c

@@ -194,7 +194,7 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
 	 * DMA interrupts...
 	 */
 
-#ifdef CONFIG_SH_RTS7751R2D
+#if defined(CONFIG_SH_RTS7751R2D) || defined(CONFIG_SH_LBOX_RE2)
 	pci_fixup_pcic();
 #endif
 

include/asm-sh/lboxre2.h

+#ifndef __ASM_SH_LBOXRE2_H
+#define __ASM_SH_LBOXRE2_H
+
+/*
+ * linux/include/asm-sh/lbox.h
+ *
+ * Copyright (C) 2007 Nobuhiro Iwamatsu
+ *
+ * NTT COMWARE L-BOX RE2 support
+ *
+ * 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.
+ *
+ */
+
+#define CONFIG_CF0_BASE_ADDR	0xb4000000 /* Boot only */
+#define CONFIG_CF1_BASE_ADDR	0xb8000000
+
+#define IRQ_CF1 	9	/* CF1 */
+#define IRQ_CF0 	10	/* CF0 */
+#define IRQ_INTD	11	/* INTD */
+#define IRQ_ETH1	12	/* Ether1 */
+#define IRQ_ETH0	13	/* Ether0 */
+#define IRQ_INTA	14	/* INTA */
+
+void init_lboxre2_IRQ(void);
+
+#define __IO_PREFIX	lboxre2
+#include <asm/io_generic.h>
+
+#endif  /* __ASM_SH_LBOXRE2_H */