sh: Add support for SDK7780 board.

Add support for Renesas Technology Europe SDK7780 board.

Signed-off-by: Nicholas Beck <nbeck@mpc-data.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

3 files changed, 133 insertions, 0 deletions

diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index 1086cf111f8b..7bf2a2c823f3 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_SH_SECUREEDGE5410)		+= ops-snapgear.o
 obj-$(CONFIG_SH_RTS7751R2D)             += ops-rts7751r2d.o fixups-rts7751r2d.o
 obj-$(CONFIG_SH_SH03)                   += ops-sh03.o fixups-sh03.o
 obj-$(CONFIG_SH_HIGHLANDER)             += ops-r7780rp.o fixups-r7780rp.o
+obj-$(CONFIG_SH_SDK7780)                += ops-sdk7780.o fixups-sdk7780.o
 obj-$(CONFIG_SH_TITAN)                  += ops-titan.o
 obj-$(CONFIG_SH_LANDISK)                += ops-landisk.o
 obj-$(CONFIG_SH_LBOX_RE2)               += ops-lboxre2.o fixups-lboxre2.o
diff --git a/arch/sh/drivers/pci/fixups-sdk7780.c b/arch/sh/drivers/pci/fixups-sdk7780.c
new file mode 100644
index 000000000000..2f8863099dd1
--- /dev/null
+++ b/arch/sh/drivers/pci/fixups-sdk7780.c
@@ -0,0 +1,59 @@
+/*
+ * arch/sh/drivers/pci/fixups-sdk7780.c
+ *
+ * PCI fixups for the SDK7780SE03
+ *
+ * Copyright (C) 2003  Lineo uSolutions, Inc.
+ * Copyright (C) 2004 - 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/pci.h>
+#include "pci-sh4.h"
+#include <asm/io.h>
+
+int pci_fixup_pcic(void)
+{
+        ctrl_outl(0x00000001, SH7780_PCI_VCR2);
+
+        /* Enable all interrupts, so we know what to fix */
+        pci_write_reg(0x0000C3FF, SH7780_PCIIMR);
+        pci_write_reg(0x0000380F, SH7780_PCIAINTM);
+
+        /* Set up standard PCI config registers */
+        pci_write_reg(0xFB00, SH7780_PCISTATUS);
+        pci_write_reg(0x0047, SH7780_PCICMD);
+        pci_write_reg(0x00, SH7780_PCIPIF);
+        pci_write_reg(0x00, SH7780_PCISUB);
+        pci_write_reg(0x06, SH7780_PCIBCC);
+        pci_write_reg(0x1912, SH7780_PCISVID);
+        pci_write_reg(0x0001, SH7780_PCISID);
+
+        pci_write_reg(0x08000000, SH7780_PCIMBAR0);     /* PCI */
+        pci_write_reg(0x08000000, SH7780_PCILAR0);      /* SHwy */
+        pci_write_reg(0x07F00001, SH7780_PCILSR);       /* size 128M w/ MBAR */
+
+        pci_write_reg(0x00000000, SH7780_PCIMBAR1);
+        pci_write_reg(0x00000000, SH7780_PCILAR1);
+        pci_write_reg(0x00000000, SH7780_PCILSR1);
+
+        pci_write_reg(0xAB000801, SH7780_PCIIBAR);
+
+        /*
+         * Set the MBR so PCI address is one-to-one with window,
+         * meaning all calls go straight through... use ifdef to
+         * catch erroneous assumption.
+         */
+        pci_write_reg(0xFD000000 , SH7780_PCIMBR0);
+        pci_write_reg(0x00FC0000 , SH7780_PCIMBMR0);    /* 16M */
+
+        /* Set IOBR for window containing area specified in pci.h */
+        pci_write_reg(PCIBIOS_MIN_IO & ~(SH7780_PCI_IO_SIZE-1), SH7780_PCIIOBR);
+        pci_write_reg((SH7780_PCI_IO_SIZE-1) & (7 << 18), SH7780_PCIIOBMR);
+
+        pci_write_reg(0xA5000C01, SH7780_PCICR);
+
+        return 0;
+}
diff --git a/arch/sh/drivers/pci/ops-sdk7780.c b/arch/sh/drivers/pci/ops-sdk7780.c
new file mode 100644
index 000000000000..66a9b4047f26
--- /dev/null
+++ b/arch/sh/drivers/pci/ops-sdk7780.c
@@ -0,0 +1,73 @@
+/*
+ * linux/arch/sh/drivers/pci/ops-sdk7780.c
+ *
+ * Copyright (C) 2006  Nobuhiro Iwamatsu
+ *
+ * PCI initialization for the SDK7780SE03
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <asm/sdk7780.h>
+#include <asm/io.h>
+#include "pci-sh4.h"
+
+/* IDSEL [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] */
+static char sdk7780_irq_tab[4][16] __initdata = {
+        /* INTA */
+        { 65, 68, 67, 68, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+        /* INTB */
+        { 66, 65, -1, 65, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+        /* INTC */
+        { 67, 66, -1, 66, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+        /* INTD */
+        { 68, 67, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
+};
+
+int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
+{
+       return sdk7780_irq_tab[pin-1][slot];
+}
+
+static struct resource sdk7780_io_resource = {
+        .name   = "SH7780_IO",
+        .start  = SH7780_PCI_IO_BASE,
+        .end    = SH7780_PCI_IO_BASE + SH7780_PCI_IO_SIZE - 1,
+        .flags  = IORESOURCE_IO
+};
+
+static struct resource sdk7780_mem_resource = {
+        .name   = "SH7780_mem",
+        .start  = SH7780_PCI_MEMORY_BASE,
+        .end    = SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1,
+        .flags  = IORESOURCE_MEM
+};
+
+struct pci_channel board_pci_channels[] = {
+        { &sh4_pci_ops, &sdk7780_io_resource, &sdk7780_mem_resource, 0, 0xff },
+        { NULL, NULL, NULL, 0, 0 },
+};
+EXPORT_SYMBOL(board_pci_channels);
+
+static struct sh4_pci_address_map sdk7780_pci_map = {
+        .window0        = {
+                .base   = SH7780_CS2_BASE_ADDR,
+                .size   = 0x04000000,
+        },
+        .window1        = {
+                .base   = SH7780_CS3_BASE_ADDR,
+                .size   = 0x04000000,
+        },
+        .flags  = SH4_PCIC_NO_RESET,
+};
+
+int __init pcibios_init_platform(void)
+{
+        printk(KERN_INFO "SH7780 PCI: Finished initializing PCI controller\n");
+        return sh7780_pcic_init(&sdk7780_pci_map);
+}