target/linux/kirkwood/patches-3.10/0010-arm-kirkwood-move-PCIe-window-init-to-legacy-driver.patch

   1 From 080dc44291ff143d84b63e5ff9fda963d46a7dce Mon Sep 17 00:00:00 2001
   2 From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
   3 Date: Wed, 27 Mar 2013 18:51:25 +0100
   4 Subject: [PATCH 10/29] arm: kirkwood: move PCIe window init to legacy driver
   5
   6 Since we are going to enable the usage of the mvebu PCIe driver on
   7 Kirkwood, we don't want the PCIe windows to be unconditionally created
   8 by kirkwood_setup_wins(). Therefore, we move the PCIe window
   9 initialization into the legacy PCIe driver
  10 (arch/arm/mach-kirkwood/pcie.c).
  11
  12 The platforms using the legacy driver will see their windows
  13 statically allocated by
  14 arch/arm/mach-kirkwood/pcie.c:kirkwood_pcie_init(). The platforms
  15 using the new driver in drivers/pci/ will see their windows
  16 dynamically allocated directly by the driver.
  17
  18 Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
  19 Tested-by: Andrew Lunn <andrew@lunn.ch>
  20 ---
  21  arch/arm/mach-kirkwood/common.c | 24 ------------------------
  22  arch/arm/mach-kirkwood/pcie.c   | 22 ++++++++++++++++++++++
  23  2 files changed, 22 insertions(+), 24 deletions(-)
  24
  25 diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
  26 index f389228..41ea98d 100644
  27 --- a/arch/arm/mach-kirkwood/common.c
  28 +++ b/arch/arm/mach-kirkwood/common.c
  29 @@ -648,30 +648,6 @@ char * __init kirkwood_id(void)
  30
  31  void __init kirkwood_setup_wins(void)
  32  {
  33 -       /*
  34 -        * The PCIe windows will no longer be statically allocated
  35 -        * here once Kirkwood is migrated to the pci-mvebu driver.
  36 -        */
  37 -       mvebu_mbus_add_window_remap_flags("pcie0.0",
  38 -                                         KIRKWOOD_PCIE_IO_PHYS_BASE,
  39 -                                         KIRKWOOD_PCIE_IO_SIZE,
  40 -                                         KIRKWOOD_PCIE_IO_BUS_BASE,
  41 -                                         MVEBU_MBUS_PCI_IO);
  42 -       mvebu_mbus_add_window_remap_flags("pcie0.0",
  43 -                                         KIRKWOOD_PCIE_MEM_PHYS_BASE,
  44 -                                         KIRKWOOD_PCIE_MEM_SIZE,
  45 -                                         MVEBU_MBUS_NO_REMAP,
  46 -                                         MVEBU_MBUS_PCI_MEM);
  47 -       mvebu_mbus_add_window_remap_flags("pcie1.0",
  48 -                                         KIRKWOOD_PCIE1_IO_PHYS_BASE,
  49 -                                         KIRKWOOD_PCIE1_IO_SIZE,
  50 -                                         KIRKWOOD_PCIE1_IO_BUS_BASE,
  51 -                                         MVEBU_MBUS_PCI_IO);
  52 -       mvebu_mbus_add_window_remap_flags("pcie1.0",
  53 -                                         KIRKWOOD_PCIE1_MEM_PHYS_BASE,
  54 -                                         KIRKWOOD_PCIE1_MEM_SIZE,
  55 -                                         MVEBU_MBUS_NO_REMAP,
  56 -                                         MVEBU_MBUS_PCI_MEM);
  57         mvebu_mbus_add_window("nand", KIRKWOOD_NAND_MEM_PHYS_BASE,
  58                               KIRKWOOD_NAND_MEM_SIZE);
  59         mvebu_mbus_add_window("sram", KIRKWOOD_SRAM_PHYS_BASE,
  60 diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
  61 index 7f43e6c..ddcb09f 100644
  62 --- a/arch/arm/mach-kirkwood/pcie.c
  63 +++ b/arch/arm/mach-kirkwood/pcie.c
  64 @@ -12,6 +12,7 @@
  65  #include <linux/pci.h>
  66  #include <linux/slab.h>
  67  #include <linux/clk.h>
  68 +#include <linux/mbus.h>
  69  #include <video/vga.h>
  70  #include <asm/irq.h>
  71  #include <asm/mach/pci.h>
  72 @@ -253,6 +254,27 @@ static void __init add_pcie_port(int index, void __iomem *base)
  73
  74  void __init kirkwood_pcie_init(unsigned int portmask)
  75  {
  76 +       mvebu_mbus_add_window_remap_flags("pcie0.0",
  77 +                                         KIRKWOOD_PCIE_IO_PHYS_BASE,
  78 +                                         KIRKWOOD_PCIE_IO_SIZE,
  79 +                                         KIRKWOOD_PCIE_IO_BUS_BASE,
  80 +                                         MVEBU_MBUS_PCI_IO);
  81 +       mvebu_mbus_add_window_remap_flags("pcie0.0",
  82 +                                         KIRKWOOD_PCIE_MEM_PHYS_BASE,
  83 +                                         KIRKWOOD_PCIE_MEM_SIZE,
  84 +                                         MVEBU_MBUS_NO_REMAP,
  85 +                                         MVEBU_MBUS_PCI_MEM);
  86 +       mvebu_mbus_add_window_remap_flags("pcie1.0",
  87 +                                         KIRKWOOD_PCIE1_IO_PHYS_BASE,
  88 +                                         KIRKWOOD_PCIE1_IO_SIZE,
  89 +                                         KIRKWOOD_PCIE1_IO_BUS_BASE,
  90 +                                         MVEBU_MBUS_PCI_IO);
  91 +       mvebu_mbus_add_window_remap_flags("pcie1.0",
  92 +                                         KIRKWOOD_PCIE1_MEM_PHYS_BASE,
  93 +                                         KIRKWOOD_PCIE1_MEM_SIZE,
  94 +                                         MVEBU_MBUS_NO_REMAP,
  95 +                                         MVEBU_MBUS_PCI_MEM);
  96 +
  97         vga_base = KIRKWOOD_PCIE_MEM_PHYS_BASE;
  98
  99         if (portmask & KW_PCIE0)
 100 --
 101 1.8.4.rc1
 102