target/linux/brcm47xx/patches-3.2/0036-bcma-add-the-core-unit-number.patch

   1 From 7b9116eeaf44c0d368b5eeaa06eb101465284596 Mon Sep 17 00:00:00 2001
   2 From: Hauke Mehrtens <hauke@hauke-m.de>
   3 Date: Wed, 11 Jan 2012 15:26:11 +0100
   4 Subject: [PATCH 23/31] bcma: add the core unit number
   5
   6 Some SoCs have two pcie or gmac cores and we need to know the number of
   7 the specific core on the bus. This is the case for the BCM4706.
   8
   9 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
  10 ---
  11  drivers/bcma/scan.c       |   14 ++++++++++++++
  12  include/linux/bcma/bcma.h |    1 +
  13  2 files changed, 15 insertions(+), 0 deletions(-)
  14
  15 --- a/drivers/bcma/scan.c
  16 +++ b/drivers/bcma/scan.c
  17 @@ -212,6 +212,17 @@ static struct bcma_device *bcma_find_cor
  18         return NULL;
  19  }
  20
  21 +static struct bcma_device *bcma_find_core_reverse(struct bcma_bus *bus, u16 coreid)
  22 +{
  23 +       struct bcma_device *core;
  24 +
  25 +       list_for_each_entry_reverse(core, &bus->cores, list) {
  26 +               if (core->id.id == coreid)
  27 +                       return core;
  28 +       }
  29 +       return NULL;
  30 +}
  31 +
  32  static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr,
  33                               struct bcma_device_id *match, int core_num,
  34                               struct bcma_device *core)
  35 @@ -392,6 +403,7 @@ int bcma_bus_scan(struct bcma_bus *bus)
  36         bcma_scan_switch_core(bus, erombase);
  37
  38         while (eromptr < eromend) {
  39 +               struct bcma_device *other_core;
  40                 struct bcma_device *core = kzalloc(sizeof(*core), GFP_KERNEL);
  41                 if (!core)
  42                         return -ENOMEM;
  43 @@ -411,6 +423,8 @@ int bcma_bus_scan(struct bcma_bus *bus)
  44
  45                 core->core_index = core_num++;
  46                 bus->nr_cores++;
  47 +               other_core = bcma_find_core_reverse(bus, core->id.id);
  48 +               core->core_unit = (other_core == NULL) ? 0 : other_core->core_unit + 1;
  49
  50                 pr_info("Core %d found: %s "
  51                         "(manuf 0x%03X, id 0x%03X, rev 0x%02X, class 0x%X)\n",
  52 --- a/include/linux/bcma/bcma.h
  53 +++ b/include/linux/bcma/bcma.h
  54 @@ -136,6 +136,7 @@ struct bcma_device {
  55         bool dev_registered;
  56
  57         u8 core_index;
  58 +       u8 core_unit;
  59
  60         u32 addr;
  61         u32 wrap;