target/linux/ar71xx/patches-3.8/022-MIPS-pci-ar71xx-remove-static-PCI-IO-MEM-resources.patch

   1 From f073cb029873ed487e14784d3682b6aa25afe997 Mon Sep 17 00:00:00 2001
   2 From: Gabor Juhos <juhosg@openwrt.org>
   3 Date: Thu, 7 Feb 2013 19:28:15 +0000
   4 Subject: [PATCH] MIPS: pci-ar71xx: remove static PCI IO/MEM resources
   5
   6 commit 42cb60d1fab4c81ef24876d985e08fc5bb899e41 upstream.
   7
   8 Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
   9 Patchwork: http://patchwork.linux-mips.org/patch/4927/
  10 Signed-off-by: John Crispin <blogic@openwrt.org>
  11 ---
  12  arch/mips/ath79/pci.c      |   12 +++++++++++-
  13  arch/mips/pci/pci-ar71xx.c |   40 ++++++++++++++++++++++++----------------
  14  2 files changed, 35 insertions(+), 17 deletions(-)
  15
  16 --- a/arch/mips/ath79/pci.c
  17 +++ b/arch/mips/ath79/pci.c
  18 @@ -117,7 +117,7 @@ static struct platform_device *
  19  ath79_register_pci_ar71xx(void)
  20  {
  21         struct platform_device *pdev;
  22 -       struct resource res[2];
  23 +       struct resource res[4];
  24
  25         memset(res, 0, sizeof(res));
  26
  27 @@ -130,6 +130,16 @@ ath79_register_pci_ar71xx(void)
  28         res[1].start = ATH79_CPU_IRQ_IP2;
  29         res[1].end = ATH79_CPU_IRQ_IP2;
  30
  31 +       res[2].name = "io_base";
  32 +       res[2].flags = IORESOURCE_IO;
  33 +       res[2].start = 0;
  34 +       res[2].end = 0;
  35 +
  36 +       res[3].name = "mem_base";
  37 +       res[3].flags = IORESOURCE_MEM;
  38 +       res[3].start = AR71XX_PCI_MEM_BASE;
  39 +       res[3].end = AR71XX_PCI_MEM_BASE + AR71XX_PCI_MEM_SIZE - 1;
  40 +
  41         pdev = platform_device_register_simple("ar71xx-pci", -1,
  42                                                res, ARRAY_SIZE(res));
  43         return pdev;
  44 --- a/arch/mips/pci/pci-ar71xx.c
  45 +++ b/arch/mips/pci/pci-ar71xx.c
  46 @@ -53,6 +53,8 @@ struct ar71xx_pci_controller {
  47         spinlock_t lock;
  48         int irq;
  49         struct pci_controller pci_ctrl;
  50 +       struct resource io_res;
  51 +       struct resource mem_res;
  52  };
  53
  54  /* Byte lane enable bits */
  55 @@ -234,20 +236,6 @@ static struct pci_ops ar71xx_pci_ops = {
  56         .write  = ar71xx_pci_write_config,
  57  };
  58
  59 -static struct resource ar71xx_pci_io_resource = {
  60 -       .name           = "PCI IO space",
  61 -       .start          = 0,
  62 -       .end            = 0,
  63 -       .flags          = IORESOURCE_IO,
  64 -};
  65 -
  66 -static struct resource ar71xx_pci_mem_resource = {
  67 -       .name           = "PCI memory space",
  68 -       .start          = AR71XX_PCI_MEM_BASE,
  69 -       .end            = AR71XX_PCI_MEM_BASE + AR71XX_PCI_MEM_SIZE - 1,
  70 -       .flags          = IORESOURCE_MEM
  71 -};
  72 -
  73  static void ar71xx_pci_irq_handler(unsigned int irq, struct irq_desc *desc)
  74  {
  75         void __iomem *base = ath79_reset_base;
  76 @@ -370,6 +358,26 @@ static int ar71xx_pci_probe(struct platf
  77         if (apc->irq < 0)
  78                 return -EINVAL;
  79
  80 +       res = platform_get_resource_byname(pdev, IORESOURCE_IO, "io_base");
  81 +       if (!res)
  82 +               return -EINVAL;
  83 +
  84 +       apc->io_res.parent = res;
  85 +       apc->io_res.name = "PCI IO space";
  86 +       apc->io_res.start = res->start;
  87 +       apc->io_res.end = res->end;
  88 +       apc->io_res.flags = IORESOURCE_IO;
  89 +
  90 +       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mem_base");
  91 +       if (!res)
  92 +               return -EINVAL;
  93 +
  94 +       apc->mem_res.parent = res;
  95 +       apc->mem_res.name = "PCI memory space";
  96 +       apc->mem_res.start = res->start;
  97 +       apc->mem_res.end = res->end;
  98 +       apc->mem_res.flags = IORESOURCE_MEM;
  99 +
 100         ar71xx_pci_reset();
 101
 102         /* setup COMMAND register */
 103 @@ -383,8 +391,8 @@ static int ar71xx_pci_probe(struct platf
 104         ar71xx_pci_irq_init(apc);
 105
 106         apc->pci_ctrl.pci_ops = &ar71xx_pci_ops;
 107 -       apc->pci_ctrl.mem_resource = &ar71xx_pci_mem_resource;
 108 -       apc->pci_ctrl.io_resource = &ar71xx_pci_io_resource;
 109 +       apc->pci_ctrl.mem_resource = &apc->mem_res;
 110 +       apc->pci_ctrl.io_resource = &apc->io_res;
 111
 112         register_pci_controller(&apc->pci_ctrl);
 113