target/linux/brcm47xx/patches-4.1/033-01-MIPS-BCM47xx-Support-on-SoC-bus-in-SPROM-reading-fun.patch

   1 From daa7ce02513d2188fe6f5ff47ce5ef83eb7de739 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
   3 Date: Sun, 25 Oct 2015 22:16:47 +0100
   4 Subject: [PATCH 1/3] MIPS: BCM47xx: Support on-SoC bus in SPROM reading
   5  function
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
   8 Content-Transfer-Encoding: 8bit
   9
  10 To support (extract) SPROM on Broadcom ARM devices we should separate
  11 SPROM code and make it a separated module. We won't want to export
  12 bcm47xx_fill_sprom symbol so we should support SoC SPROM in the standard
  13 fallback function and then modify ssb to use it.
  14
  15 Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
  16 Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
  17 Cc: linux-mips@linux-mips.org
  18 Patchwork: https://patchwork.linux-mips.org/patch/11355/
  19 Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
  20 ---
  21  arch/mips/bcm47xx/sprom.c | 8 ++++++--
  22  1 file changed, 6 insertions(+), 2 deletions(-)
  23
  24 --- a/arch/mips/bcm47xx/sprom.c
  25 +++ b/arch/mips/bcm47xx/sprom.c
  26 @@ -610,14 +610,18 @@ static int bcm47xx_get_sprom_ssb(struct
  27  {
  28         char prefix[10];
  29
  30 -       if (bus->bustype == SSB_BUSTYPE_PCI) {
  31 +       switch (bus->bustype) {
  32 +       case SSB_BUSTYPE_SSB:
  33 +               bcm47xx_fill_sprom(out, NULL, false);
  34 +               return 0;
  35 +       case SSB_BUSTYPE_PCI:
  36                 memset(out, 0, sizeof(struct ssb_sprom));
  37                 snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
  38                          bus->host_pci->bus->number + 1,
  39                          PCI_SLOT(bus->host_pci->devfn));
  40                 bcm47xx_fill_sprom(out, prefix, false);
  41                 return 0;
  42 -       } else {
  43 +       default:
  44                 pr_warn("Unable to fill SPROM for given bustype.\n");
  45                 return -EINVAL;
  46         }