target/linux/brcm47xx/patches-3.18/033-MIPS-BCM47XX-Move-SPROM-fallback-code-into-sprom.c.patch

   1 From a59da8fb3b2a1f2df5f871464e43cd5b6ca6ceb1 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
   3 Date: Tue, 28 Oct 2014 12:52:02 +0100
   4 Subject: [PATCH 157/158] MIPS: BCM47XX: Move SPROM fallback code into sprom.c
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 This is some general cleanup as well as preparing sprom.c to become a
  10 standalone driver. We will need this for bcm53xx ARM arch support.
  11
  12 Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
  13 Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
  14 Cc: linux-mips@linux-mips.org
  15 Patchwork: https://patchwork.linux-mips.org/patch/8232/
  16 Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
  17 ---
  18  arch/mips/bcm47xx/bcm47xx_private.h |  3 ++
  19  arch/mips/bcm47xx/setup.c           | 58 ++-----------------------------
  20  arch/mips/bcm47xx/sprom.c           | 68 +++++++++++++++++++++++++++++++++++++
  21  3 files changed, 73 insertions(+), 56 deletions(-)
  22
  23 diff --git a/arch/mips/bcm47xx/bcm47xx_private.h b/arch/mips/bcm47xx/bcm47xx_private.h
  24 index f1cc9d0..12a112d 100644
  25 --- a/arch/mips/bcm47xx/bcm47xx_private.h
  26 +++ b/arch/mips/bcm47xx/bcm47xx_private.h
  27 @@ -6,6 +6,9 @@
  28  /* prom.c */
  29  void __init bcm47xx_prom_highmem_init(void);
  30
  31 +/* sprom.c */
  32 +void bcm47xx_sprom_register_fallbacks(void);
  33 +
  34  /* buttons.c */
  35  int __init bcm47xx_buttons_register(void);
  36
  37 diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
  38 index c00585d..444c65a 100644
  39 --- a/arch/mips/bcm47xx/setup.c
  40 +++ b/arch/mips/bcm47xx/setup.c
  41 @@ -102,23 +102,6 @@ static void bcm47xx_machine_halt(void)
  42  }
  43
  44  #ifdef CONFIG_BCM47XX_SSB
  45 -static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
  46 -{
  47 -       char prefix[10];
  48 -
  49 -       if (bus->bustype == SSB_BUSTYPE_PCI) {
  50 -               memset(out, 0, sizeof(struct ssb_sprom));
  51 -               snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
  52 -                        bus->host_pci->bus->number + 1,
  53 -                        PCI_SLOT(bus->host_pci->devfn));
  54 -               bcm47xx_fill_sprom(out, prefix, false);
  55 -               return 0;
  56 -       } else {
  57 -               printk(KERN_WARNING "bcm47xx: unable to fill SPROM for given bustype.\n");
  58 -               return -EINVAL;
  59 -       }
  60 -}
  61 -
  62  static int bcm47xx_get_invariants(struct ssb_bus *bus,
  63                                   struct ssb_init_invariants *iv)
  64  {
  65 @@ -144,11 +127,6 @@ static void __init bcm47xx_register_ssb(void)
  66         char buf[100];
  67         struct ssb_mipscore *mcore;
  68
  69 -       err = ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb);
  70 -       if (err)
  71 -               printk(KERN_WARNING "bcm47xx: someone else already registered"
  72 -                       " a ssb SPROM callback handler (err %d)\n", err);
  73 -
  74         err = ssb_bus_ssbbus_register(&(bcm47xx_bus.ssb), SSB_ENUM_BASE,
  75                                       bcm47xx_get_invariants);
  76         if (err)
  77 @@ -171,44 +149,10 @@ static void __init bcm47xx_register_ssb(void)
  78  #endif
  79
  80  #ifdef CONFIG_BCM47XX_BCMA
  81 -static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
  82 -{
  83 -       char prefix[10];
  84 -       struct bcma_device *core;
  85 -
  86 -       switch (bus->hosttype) {
  87 -       case BCMA_HOSTTYPE_PCI:
  88 -               memset(out, 0, sizeof(struct ssb_sprom));
  89 -               snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
  90 -                        bus->host_pci->bus->number + 1,
  91 -                        PCI_SLOT(bus->host_pci->devfn));
  92 -               bcm47xx_fill_sprom(out, prefix, false);
  93 -               return 0;
  94 -       case BCMA_HOSTTYPE_SOC:
  95 -               memset(out, 0, sizeof(struct ssb_sprom));
  96 -               core = bcma_find_core(bus, BCMA_CORE_80211);
  97 -               if (core) {
  98 -                       snprintf(prefix, sizeof(prefix), "sb/%u/",
  99 -                                core->core_index);
 100 -                       bcm47xx_fill_sprom(out, prefix, true);
 101 -               } else {
 102 -                       bcm47xx_fill_sprom(out, NULL, false);
 103 -               }
 104 -               return 0;
 105 -       default:
 106 -               pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
 107 -               return -EINVAL;
 108 -       }
 109 -}
 110 -
 111  static void __init bcm47xx_register_bcma(void)
 112  {
 113         int err;
 114
 115 -       err = bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma);
 116 -       if (err)
 117 -               pr_warn("bcm47xx: someone else already registered a bcma SPROM callback handler (err %d)\n", err);
 118 -
 119         err = bcma_host_soc_register(&bcm47xx_bus.bcma);
 120         if (err)
 121                 panic("Failed to register BCMA bus (err %d)", err);
 122 @@ -229,6 +173,7 @@ void __init plat_mem_setup(void)
 123                 printk(KERN_INFO "bcm47xx: using bcma bus\n");
 124  #ifdef CONFIG_BCM47XX_BCMA
 125                 bcm47xx_bus_type = BCM47XX_BUS_TYPE_BCMA;
 126 +               bcm47xx_sprom_register_fallbacks();
 127                 bcm47xx_register_bcma();
 128                 bcm47xx_set_system_type(bcm47xx_bus.bcma.bus.chipinfo.id);
 129  #ifdef CONFIG_HIGHMEM
 130 @@ -239,6 +184,7 @@ void __init plat_mem_setup(void)
 131                 printk(KERN_INFO "bcm47xx: using ssb bus\n");
 132  #ifdef CONFIG_BCM47XX_SSB
 133                 bcm47xx_bus_type = BCM47XX_BUS_TYPE_SSB;
 134 +               bcm47xx_sprom_register_fallbacks();
 135                 bcm47xx_register_ssb();
 136                 bcm47xx_set_system_type(bcm47xx_bus.ssb.chip_id);
 137  #endif
 138 diff --git a/arch/mips/bcm47xx/sprom.c b/arch/mips/bcm47xx/sprom.c
 139 index 41226b6..e772e77 100644
 140 --- a/arch/mips/bcm47xx/sprom.c
 141 +++ b/arch/mips/bcm47xx/sprom.c
 142 @@ -801,3 +801,71 @@ void bcm47xx_fill_bcma_boardinfo(struct bcma_boardinfo *boardinfo,
 143         nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0, true);
 144  }
 145  #endif
 146 +
 147 +#if defined(CONFIG_BCM47XX_SSB)
 148 +static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
 149 +{
 150 +       char prefix[10];
 151 +
 152 +       if (bus->bustype == SSB_BUSTYPE_PCI) {
 153 +               memset(out, 0, sizeof(struct ssb_sprom));
 154 +               snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
 155 +                        bus->host_pci->bus->number + 1,
 156 +                        PCI_SLOT(bus->host_pci->devfn));
 157 +               bcm47xx_fill_sprom(out, prefix, false);
 158 +               return 0;
 159 +       } else {
 160 +               pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
 161 +               return -EINVAL;
 162 +       }
 163 +}
 164 +#endif
 165 +
 166 +#if defined(CONFIG_BCM47XX_BCMA)
 167 +static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
 168 +{
 169 +       char prefix[10];
 170 +       struct bcma_device *core;
 171 +
 172 +       switch (bus->hosttype) {
 173 +       case BCMA_HOSTTYPE_PCI:
 174 +               memset(out, 0, sizeof(struct ssb_sprom));
 175 +               snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
 176 +                        bus->host_pci->bus->number + 1,
 177 +                        PCI_SLOT(bus->host_pci->devfn));
 178 +               bcm47xx_fill_sprom(out, prefix, false);
 179 +               return 0;
 180 +       case BCMA_HOSTTYPE_SOC:
 181 +               memset(out, 0, sizeof(struct ssb_sprom));
 182 +               core = bcma_find_core(bus, BCMA_CORE_80211);
 183 +               if (core) {
 184 +                       snprintf(prefix, sizeof(prefix), "sb/%u/",
 185 +                                core->core_index);
 186 +                       bcm47xx_fill_sprom(out, prefix, true);
 187 +               } else {
 188 +                       bcm47xx_fill_sprom(out, NULL, false);
 189 +               }
 190 +               return 0;
 191 +       default:
 192 +               pr_warn("bcm47xx: unable to fill SPROM for given bustype.\n");
 193 +               return -EINVAL;
 194 +       }
 195 +}
 196 +#endif
 197 +
 198 +/*
 199 + * On bcm47xx we need to register SPROM fallback handler very early, so we can't
 200 + * use anything like platform device / driver for this.
 201 + */
 202 +void bcm47xx_sprom_register_fallbacks(void)
 203 +{
 204 +#if defined(CONFIG_BCM47XX_SSB)
 205 +       if (ssb_arch_register_fallback_sprom(&bcm47xx_get_sprom_ssb))
 206 +               pr_warn("Failed to registered ssb SPROM handler\n");
 207 +#endif
 208 +
 209 +#if defined(CONFIG_BCM47XX_BCMA)
 210 +       if (bcma_arch_register_fallback_sprom(&bcm47xx_get_sprom_bcma))
 211 +               pr_warn("Failed to registered bcma SPROM handler\n");
 212 +#endif
 213 +}
 214 --
 215 1.8.4.5
 216