imx6: remove obsolete files

[openwrt/svn-archive/archive.git] / target / linux / imx6 / files-3.10 / arch / arm / mach-imx / msi.c

diff --git a/target/linux/imx6/files-3.10/arch/arm/mach-imx/msi.c b/target/linux/imx6/files-3.10/arch/arm/mach-imx/msi.c
deleted file mode 100644 (file)
index 8850eaf..0000000
--- a/target/linux/imx6/files-3.10/arch/arm/mach-imx/msi.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * arch/arm/mach-mx6/msi.c
- *
- * PCI MSI support for the imx processor
- *
- * Copyright (c) 2013, Boundary Devices.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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 <linux/module.h>
-#include <linux/pci.h>
-#include <linux/msi.h>
-#include <asm/bitops.h>
-#include <asm/mach/irq.h>
-#include <asm/irq.h>
-#include <linux/irqchip/chained_irq.h>
-
-#include "hardware.h"
-#include "msi.h"
-
-#define IMX_NUM_MSI_IRQS 128
-static DECLARE_BITMAP(msi_irq_in_use, IMX_NUM_MSI_IRQS);
-static int irq_base;
-
-static void imx_msi_handler(unsigned int irq, struct irq_desc *desc)
-{
-       int i, j;
-       unsigned status;
-       struct irq_chip *chip = irq_get_chip(irq);
-
-       irq_base = irq_alloc_descs(-1, 0, IMX_NUM_MSI_IRQS, 0);
-       if (irq_base < 0) {
-               printk(KERN_ERR "%s: could not allocate IRQ numbers\n", __func__);
-               return;
-       }
-
-       chained_irq_enter(chip, desc);
-       for (i = 0; i < 8; i++) {
-               status = imx_pcie_msi_pending(i);
-               while (status) {
-                       j = __fls(status);
-                       generic_handle_irq(irq_base + j);
-                       status &= ~(1 << j);
-               }
-               irq_base += 32;
-       }
-       chained_irq_exit(chip, desc);
-}
-
-/*
- * Dynamic irq allocate and deallocation
- */
-int create_irq(void)
-{
-       int irq, pos;
-
-       do {
-               pos = find_first_zero_bit(msi_irq_in_use, IMX_NUM_MSI_IRQS);
-               if ((unsigned)pos >= IMX_NUM_MSI_IRQS)
-                       return -ENOSPC;
-               /* test_and_set_bit operates on 32-bits at a time */
-       } while (test_and_set_bit(pos, msi_irq_in_use));
-
-       irq = irq_base + pos;
-       dynamic_irq_init(irq);
-       return irq;
-}
-
-void destroy_irq(unsigned int irq)
-{
-       int pos = irq - irq_base;
-
-       dynamic_irq_cleanup(irq);
-       clear_bit(pos, msi_irq_in_use);
-}
-
-void arch_teardown_msi_irq(unsigned int irq)
-{
-       destroy_irq(irq);
-}
-
-static void imx_msi_irq_ack(struct irq_data *d)
-{
-       return;
-}
-
-static void imx_msi_irq_enable(struct irq_data *d)
-{
-       imx_pcie_enable_irq(d->irq - irq_base, 1);
-       return unmask_msi_irq(d);
-}
-
-static void imx_msi_irq_disable(struct irq_data *d)
-{
-       imx_pcie_enable_irq(d->irq - irq_base, 0);
-       return mask_msi_irq(d);
-}
-
-static void imx_msi_irq_mask(struct irq_data *d)
-{
-       imx_pcie_mask_irq(d->irq - irq_base, 1);
-       return mask_msi_irq(d);
-}
-
-static void imx_msi_irq_unmask(struct irq_data *d)
-{
-       imx_pcie_mask_irq(d->irq - irq_base, 0);
-       return unmask_msi_irq(d);
-}
-
-static struct irq_chip imx_msi_chip = {
-       .name = "PCIe-MSI",
-       .irq_ack = imx_msi_irq_ack,
-       .irq_enable = imx_msi_irq_enable,
-       .irq_disable = imx_msi_irq_disable,
-       .irq_mask = imx_msi_irq_mask,
-       .irq_unmask = imx_msi_irq_unmask,
-};
-
-int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
-{
-       int irq = create_irq();
-       struct msi_msg msg;
-
-       if (irq < 0)
-               return irq;
-
-       irq_set_msi_desc(irq, desc);
-
-       msg.address_hi = 0x0;
-       msg.address_lo = MSI_MATCH_ADDR;
-       msg.data = (mxc_cpu_type << 15) | ((irq - irq_base) & 0xff);
-
-       write_msi_msg(irq, &msg);
-       irq_set_chip_and_handler(irq, &imx_msi_chip, handle_simple_irq);
-       set_irq_flags(irq, IRQF_VALID);
-       pr_info("%s: %d of %d\n", __func__, irq, NR_IRQS);
-       return 0;
-}
-
-void imx_msi_init(void)
-{
-       irq_set_chained_handler(MXC_INT_PCIE_0, imx_msi_handler);
-}