From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/arm/mach-ixp4xx/gtwx5715-pci.c | 101 ++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) create mode 100644 arch/arm/mach-ixp4xx/gtwx5715-pci.c (limited to 'arch/arm/mach-ixp4xx/gtwx5715-pci.c') diff --git a/arch/arm/mach-ixp4xx/gtwx5715-pci.c b/arch/arm/mach-ixp4xx/gtwx5715-pci.c new file mode 100644 index 000000000000..b18035824e3e --- /dev/null +++ b/arch/arm/mach-ixp4xx/gtwx5715-pci.c @@ -0,0 +1,101 @@ +/* + * arch/arm/mach-ixp4xx/gtwx5715-pci.c + * + * Gemtek GTWX5715 (Linksys WRV54G) board setup + * + * Copyright (C) 2004 George T. Joseph + * Derived from Coyote + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +extern void ixp4xx_pci_preinit(void); +extern int ixp4xx_setup(int nr, struct pci_sys_data *sys); +extern struct pci_bus *ixp4xx_scan_bus(int nr, struct pci_sys_data *sys); + + /* + * The exact GPIO pins and IRQs are defined in arch-ixp4xx/gtwx5715.h + * Slot 0 isn't actually populated with a card connector but + * we initialize it anyway in case a future version has the + * slot populated or someone with good soldering skills has + * some free time. + */ + + +static void gtwx5715_init_gpio(u8 pin, u32 style) +{ + gpio_line_config(pin, style | IXP4XX_GPIO_ACTIVE_LOW); + + if (style & IXP4XX_GPIO_IN) gpio_line_isr_clear(pin); +} + +void __init gtwx5715_pci_preinit(void) +{ + gtwx5715_init_gpio(GTWX5715_PCI_SLOT0_INTA_GPIO, IXP4XX_GPIO_IN); + gtwx5715_init_gpio(GTWX5715_PCI_SLOT1_INTA_GPIO, IXP4XX_GPIO_IN); + + ixp4xx_pci_preinit(); +} + + +static int __init gtwx5715_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + int rc; + static int gtwx5715_irqmap + [GTWX5715_PCI_SLOT_COUNT] + [GTWX5715_PCI_INT_PIN_COUNT] = { + {GTWX5715_PCI_SLOT0_INTA_IRQ, GTWX5715_PCI_SLOT0_INTB_IRQ}, + {GTWX5715_PCI_SLOT1_INTA_IRQ, GTWX5715_PCI_SLOT1_INTB_IRQ}, +}; + + if (slot >= GTWX5715_PCI_SLOT_COUNT || + pin >= GTWX5715_PCI_INT_PIN_COUNT) rc = -1; + else + rc = gtwx5715_irqmap[slot][pin-1]; + + printk("%s: Mapped slot %d pin %d to IRQ %d\n", __FUNCTION__,slot, pin, rc); + return(rc); +} + +struct hw_pci gtwx5715_pci __initdata = { + .nr_controllers = 1, + .preinit = gtwx5715_pci_preinit, + .swizzle = pci_std_swizzle, + .setup = ixp4xx_setup, + .scan = ixp4xx_scan_bus, + .map_irq = gtwx5715_map_irq, +}; + +int __init gtwx5715_pci_init(void) +{ + if (machine_is_gtwx5715()) + { + pci_common_init(>wx5715_pci); + } + + return 0; +} + +subsys_initcall(gtwx5715_pci_init); -- cgit