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Diffstat (limited to 'arch/arm/mach-ixp4xx/coyote-pci.c')
-rw-r--r--arch/arm/mach-ixp4xx/coyote-pci.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp4xx/coyote-pci.c b/arch/arm/mach-ixp4xx/coyote-pci.c
new file mode 100644
index 000000000000..afafb42ae129
--- /dev/null
+++ b/arch/arm/mach-ixp4xx/coyote-pci.c
@@ -0,0 +1,70 @@
+/*
+ * arch/arch/mach-ixp4xx/coyote-pci.c
+ *
+ * PCI setup routines for ADI Engineering Coyote platform
+ *
+ * Copyright (C) 2002 Jungo Software Technologies.
+ * Copyright (C) 2003 MontaVista Softwrae, Inc.
+ *
+ * Maintainer: Deepak Saxena <dsaxena@mvista.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+
+#include <asm/mach-types.h>
+#include <asm/hardware.h>
+#include <asm/irq.h>
+
+#include <asm/mach/pci.h>
+
+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);
+
+void __init coyote_pci_preinit(void)
+{
+ gpio_line_config(COYOTE_PCI_SLOT0_PIN,
+ IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+
+ gpio_line_config(COYOTE_PCI_SLOT1_PIN,
+ IXP4XX_GPIO_IN | IXP4XX_GPIO_ACTIVE_LOW);
+
+ gpio_line_isr_clear(COYOTE_PCI_SLOT0_PIN);
+ gpio_line_isr_clear(COYOTE_PCI_SLOT1_PIN);
+
+ ixp4xx_pci_preinit();
+}
+
+static int __init coyote_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ if (slot == COYOTE_PCI_SLOT0_DEVID)
+ return IRQ_COYOTE_PCI_SLOT0;
+ else if (slot == COYOTE_PCI_SLOT1_DEVID)
+ return IRQ_COYOTE_PCI_SLOT1;
+ else return -1;
+}
+
+struct hw_pci coyote_pci __initdata = {
+ .nr_controllers = 1,
+ .preinit = coyote_pci_preinit,
+ .swizzle = pci_std_swizzle,
+ .setup = ixp4xx_setup,
+ .scan = ixp4xx_scan_bus,
+ .map_irq = coyote_map_irq,
+};
+
+int __init coyote_pci_init(void)
+{
+ if (machine_is_adi_coyote())
+ pci_common_init(&coyote_pci);
+ return 0;
+}
+
+subsys_initcall(coyote_pci_init);