brcm47xx: backport two MIPS nvram.c patches

[openwrt/staging/wigyori.git] / target / linux / brcm47xx / patches-3.18 / 100-MIPS-BCM47XX-Support-SPROM-prefixes-for-PCI-devices.patch

diff --git a/target/linux/brcm47xx/patches-3.18/100-MIPS-BCM47XX-Support-SPROM-prefixes-for-PCI-devices.patch b/target/linux/brcm47xx/patches-3.18/100-MIPS-BCM47XX-Support-SPROM-prefixes-for-PCI-devices.patch
deleted file mode 100644 (file)
index 4a82b50..0000000
--- a/target/linux/brcm47xx/patches-3.18/100-MIPS-BCM47XX-Support-SPROM-prefixes-for-PCI-devices.patch
+++ /dev/null
@@ -1,74 +0,0 @@
-From f3505e9283290dd9bb6197bd485e6cbfb5beaf7e Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
-Date: Wed, 11 Mar 2015 19:24:42 +0100
-Subject: [PATCH V2] MIPS: BCM47XX: Support SPROM prefixes for PCI devices
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Support parsing SPROMs with prefixes defined like devpath1=pci/1/1
-
-Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
----
-V2: I've noticed that Buffalo WZR-1750 uses an extra slash in NVRAM
-    devpaths entries. I added support for them and updated comment.
-    This adds one line over 80 chars, but it improved condition
-    readability so I think it's alright there. 
----
- arch/mips/bcm47xx/sprom.c | 33 +++++++++++++++++++++++++++++++++
- 1 file changed, 33 insertions(+)
-
-diff --git a/arch/mips/bcm47xx/sprom.c b/arch/mips/bcm47xx/sprom.c
-index 290309e..5d32afc 100644
---- a/arch/mips/bcm47xx/sprom.c
-+++ b/arch/mips/bcm47xx/sprom.c
-@@ -822,6 +822,38 @@ static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
- #endif
- 
- #if defined(CONFIG_BCM47XX_BCMA)
-+/*
-+ * Having many NVRAM entries for PCI devices led to repeating prefixes like
-+ * pci/1/1/ all the time and wasting flash space. So at some point Broadcom
-+ * decided to introduce prefixes like 0: 1: 2: etc.
-+ * If we find e.g. devpath0=pci/2/1 or devpath0=pci/2/1/ we should use 0:
-+ * instead of pci/2/1/.
-+ */
-+static void bcm47xx_sprom_apply_prefix_alias(char *prefix, size_t prefix_size)
-+{
-+      size_t prefix_len = strlen(prefix);
-+      size_t short_len = prefix_len - 1;
-+      char nvram_var[10];
-+      char buf[20];
-+      int i;
-+
-+      /* Passed prefix has to end with a slash */
-+      if (prefix_len <= 0 || prefix[prefix_len - 1] != '/')
-+              return;
-+
-+      for (i = 0; i < 3; i++) {
-+              if (snprintf(nvram_var, sizeof(nvram_var), "devpath%d", i) <= 0)
-+                      continue;
-+              if (bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf)) < 0)
-+                      continue;
-+              if (!strcmp(buf, prefix) ||
-+                  (short_len && strlen(buf) == short_len && !strncmp(buf, prefix, short_len))) {
-+                      snprintf(prefix, prefix_size, "%d:", i);
-+                      return;
-+              }
-+      }
-+}
-+
- static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
- {
-       char prefix[10];
-@@ -833,6 +865,7 @@ static int bcm47xx_get_sprom_bcma(struct bcma_bus *bus, struct ssb_sprom *out)
-               snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
-                        bus->host_pci->bus->number + 1,
-                        PCI_SLOT(bus->host_pci->devfn));
-+              bcm47xx_sprom_apply_prefix_alias(prefix, sizeof(prefix));
-               bcm47xx_fill_sprom(out, prefix, false);
-               return 0;
-       case BCMA_HOSTTYPE_SOC:
--- 
-1.8.4.5
-