diff options
Diffstat (limited to 'arch/sh/drivers/pci/ops-landisk.c')
-rw-r--r-- | arch/sh/drivers/pci/ops-landisk.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/sh/drivers/pci/ops-landisk.c b/arch/sh/drivers/pci/ops-landisk.c new file mode 100644 index 000000000000..ada301c21fe7 --- /dev/null +++ b/arch/sh/drivers/pci/ops-landisk.c @@ -0,0 +1,68 @@ +/* + * arch/sh/drivers/pci/ops-landisk.c + * + * PCI initialization for the I-O DATA Device, Inc. LANDISK board + * + * Copyright (C) 2006 kogiidena + * + * May be copied or modified under the terms of the GNU General Public + * License. See linux/COPYING for more information. + */ +#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 "pci-sh4.h" + +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 +}; + +struct pci_channel board_pci_channels[] = { + {&sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0x3ff}, + {NULL, NULL, NULL, 0, 0}, +}; + +static struct sh4_pci_address_map sh7751_pci_map = { + .window0 = { + .base = SH7751_CS3_BASE_ADDR, + .size = (64 << 20), /* 64MB */ + }, + + .flags = SH4_PCIC_NO_RESET, +}; + +int __init pcibios_init_platform(void) +{ + return sh7751_pcic_init(&sh7751_pci_map); +} + +int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) +{ + /* + * slot0: pin1-4 = irq5,6,7,8 + * slot1: pin1-4 = irq6,7,8,5 + * slot2: pin1-4 = irq7,8,5,6 + * slot3: pin1-4 = irq8,5,6,7 + */ + int irq = ((slot + pin - 1) & 0x3) + 5; + + if ((slot | (pin - 1)) > 0x3) { + printk("PCI: Bad IRQ mapping request for slot %d pin %c\n", + slot, pin - 1 + 'A'); + return -1; + } + return irq; +} |