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ops-se7780.c

/*
 * linux/arch/sh/drivers/pci/ops-se7780.c
 *
 * Copyright (C) 2006  Nobuhiro Iwamatsu
 *
 * PCI initialization for the Hitachi UL Solution Engine 7780SE03
 *
 * 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 <mach-se/mach/se7780.h>
#include <asm/io.h>
#include "pci-sh4.h"

/*
 * IDSEL = AD16  PCI slot
 * IDSEL = AD17  PCI slot
 * IDSEL = AD18  Serial ATA Controller (Silicon Image SiL3512A)
 * IDSEL = AD19  USB Host Controller (NEC uPD7210100A)
 */

/* IDSEL [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] */
static char se7780_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 se7780_irq_tab[pin-1][slot];
}

static struct resource se7780_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 se7780_mem_resource = {
      .name = "SH7780_mem",
      .start      = SH7780_PCI_MEMORY_BASE,
      .end  = SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1,
      .flags      = IORESOURCE_MEM
};

extern struct pci_ops se7780_pci_ops;

struct pci_channel board_pci_channels[] = {
      { &sh4_pci_ops, &se7780_io_resource, &se7780_mem_resource, 0, 0xff },
      { NULL, NULL, NULL, 0, 0 },
};
EXPORT_SYMBOL(board_pci_channels);

static struct sh4_pci_address_map se7780_pci_map = {
      .window0    = {
            .base = SH7780_CS2_BASE_ADDR,
            .size = 0x04000000,
      },
      .flags  = SH4_PCIC_NO_RESET,
};

int __init pcibios_init_platform(void)
{
      printk("SH7780 PCI: Finished initialization of the PCI controller\n");

      /*
       * FPGA PCISEL register initialize
       *
       *  CPU  || SLOT1 | SLOT2 | S-ATA | USB
       *  -------------------------------------
       *  INTA || INTA  | INTD  |  --   | INTB
       *  -------------------------------------
       *  INTB || INTB  | INTA  |  --   | INTC
       *  -------------------------------------
       *  INTC || INTC  | INTB  | INTA  |  --
       *  -------------------------------------
       *  INTD || INTD  | INTC  |  --   | INTA
       *  -------------------------------------
       */
      ctrl_outw(0x0013, FPGA_PCI_INTSEL1);
      ctrl_outw(0xE402, FPGA_PCI_INTSEL2);

      return sh7780_pcic_init(&se7780_pci_map);
}

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