1 files changed, 116 insertions, 0 deletions

diff --git a/arch/arm/mach-orion5x/board-rd88f5182.c b/arch/arm/mach-orion5x/board-rd88f5182.c
new file mode 100644
index 000000000000..270824b0e50f
--- /dev/null
+++ b/arch/arm/mach-orion5x/board-rd88f5182.c
@@ -0,0 +1,116 @@
+/*
+ * arch/arm/mach-orion5x/rd88f5182-setup.c
+ *
+ * Marvell Orion-NAS Reference Design Setup
+ *
+ * Maintainer: Ronen Shitrit <rshitrit@marvell.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/pci.h>
+#include <mach/orion5x.h>
+#include "common.h"
+
+/*****************************************************************************
+ * RD-88F5182 Info
+ ****************************************************************************/
+
+/*
+ * PCI
+ */
+
+#define RD88F5182_PCI_SLOT0_OFFS        7
+#define RD88F5182_PCI_SLOT0_IRQ_A_PIN   7
+#define RD88F5182_PCI_SLOT0_IRQ_B_PIN   6
+
+/*****************************************************************************
+ * PCI
+ ****************************************************************************/
+
+static void __init rd88f5182_pci_preinit(void)
+{
+        int pin;
+
+        /*
+         * Configure PCI GPIO IRQ pins
+         */
+        pin = RD88F5182_PCI_SLOT0_IRQ_A_PIN;
+        if (gpio_request(pin, "PCI IntA") == 0) {
+                if (gpio_direction_input(pin) == 0) {
+                        irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+                } else {
+                        printk(KERN_ERR "rd88f5182_pci_preinit failed to "
+                                        "set_irq_type pin %d\n", pin);
+                        gpio_free(pin);
+                }
+        } else {
+                printk(KERN_ERR "rd88f5182_pci_preinit failed to request gpio %d\n", pin);
+        }
+
+        pin = RD88F5182_PCI_SLOT0_IRQ_B_PIN;
+        if (gpio_request(pin, "PCI IntB") == 0) {
+                if (gpio_direction_input(pin) == 0) {
+                        irq_set_irq_type(gpio_to_irq(pin), IRQ_TYPE_LEVEL_LOW);
+                } else {
+                        printk(KERN_ERR "rd88f5182_pci_preinit failed to "
+                                        "set_irq_type pin %d\n", pin);
+                        gpio_free(pin);
+                }
+        } else {
+                printk(KERN_ERR "rd88f5182_pci_preinit failed to gpio_request %d\n", pin);
+        }
+}
+
+static int __init rd88f5182_pci_map_irq(const struct pci_dev *dev, u8 slot,
+        u8 pin)
+{
+        int irq;
+
+        /*
+         * Check for devices with hard-wired IRQs.
+         */
+        irq = orion5x_pci_map_irq(dev, slot, pin);
+        if (irq != -1)
+                return irq;
+
+        /*
+         * PCI IRQs are connected via GPIOs
+         */
+        switch (slot - RD88F5182_PCI_SLOT0_OFFS) {
+        case 0:
+                if (pin == 1)
+                        return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_A_PIN);
+                else
+                        return gpio_to_irq(RD88F5182_PCI_SLOT0_IRQ_B_PIN);
+        default:
+                return -1;
+        }
+}
+
+static struct hw_pci rd88f5182_pci __initdata = {
+        .nr_controllers = 2,
+        .preinit        = rd88f5182_pci_preinit,
+        .setup          = orion5x_pci_sys_setup,
+        .scan           = orion5x_pci_sys_scan_bus,
+        .map_irq        = rd88f5182_pci_map_irq,
+};
+
+static int __init rd88f5182_pci_init(void)
+{
+        if (of_machine_is_compatible("marvell,rd-88f5182-nas"))
+                pci_common_init(&rd88f5182_pci);
+
+        return 0;
+}
+
+subsys_initcall(rd88f5182_pci_init);