layerscape: add ls1088ardb device support

[openwrt/staging/yousong.git] / target / linux / layerscape / patches-4.4 / 7213-staging-fsl-dpaa2-mac-Remove-version-checks.patch

diff --git a/target/linux/layerscape/patches-4.4/7213-staging-fsl-dpaa2-mac-Remove-version-checks.patch b/target/linux/layerscape/patches-4.4/7213-staging-fsl-dpaa2-mac-Remove-version-checks.patch
new file mode 100644 (file)
index 0000000..2c7bb88
--- /dev/null
+++ b/target/linux/layerscape/patches-4.4/7213-staging-fsl-dpaa2-mac-Remove-version-checks.patch
@@ -0,0 +1,61 @@
+From 3e4dc755337ca86d29c9f21f5225a77595aee032 Mon Sep 17 00:00:00 2001
+From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
+Date: Wed, 6 Apr 2016 12:12:06 +0300
+Subject: [PATCH 213/226] staging: fsl-dpaa2/mac: Remove version checks
+
+We intend to ensure backward compatibility with all MC versions
+going forward, so we don't require an exact version match anymore
+between MAC driver, DPMAC API version and DPMAC object version in
+MC firmware.
+
+Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
+(cherry picked from commit eafc210ef421fb0dca67b67bf1a2fe98cd060c31)
+---
+ drivers/staging/fsl-dpaa2/mac/mac.c |   29 ++---------------------------
+ 1 file changed, 2 insertions(+), 27 deletions(-)
+
+--- a/drivers/staging/fsl-dpaa2/mac/mac.c
++++ b/drivers/staging/fsl-dpaa2/mac/mac.c
+@@ -481,30 +481,6 @@ static struct device_node *lookup_node(s
+       return NULL;
+ }
+ 
+-static int check_dpmac_version(struct dpaa2_mac_priv *priv)
+-{
+-      struct device *dev = &priv->mc_dev->dev;
+-      int mc_version = priv->attr.version.major;
+-
+-      /* Check that the FLIB-defined version matches the one reported by MC */
+-      if (mc_version != DPMAC_VER_MAJOR) {
+-              dev_err(dev, "DPMAC FLIB version mismatch: MC says %d, we have %d\n",
+-                      mc_version, DPMAC_VER_MAJOR);
+-              return -EINVAL;
+-      }
+-
+-      /* ... and that we actually support it */
+-      if (mc_version < DPAA2_SUPPORTED_DPMAC_VERSION) {
+-              dev_err(dev, "Unsupported DPMAC FLIB version (%d)\n",
+-                      mc_version);
+-              return -EINVAL;
+-      }
+-
+-      dev_dbg(dev, "Using DPMAC FLIB version %d\n", mc_version);
+-
+-      return 0;
+-}
+-
+ static int dpaa2_mac_probe(struct fsl_mc_device *mc_dev)
+ {
+       struct device           *dev;
+@@ -558,9 +534,8 @@ static int dpaa2_mac_probe(struct fsl_mc
+               goto err_close;
+       }
+ 
+-      err = check_dpmac_version(priv);
+-      if (err)
+-              goto err_close;
++      dev_info_once(dev, "Using DPMAC API %d.%d\n",
++                    priv->attr.version.major, priv->attr.version.minor);
+ 
+       /* Look up the DPMAC node in the device-tree. */
+       dpmac_node = lookup_node(dev, priv->attr.id);