lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

gianfar: Fix stashing support

Browse Source 
Stashing is only supported on the 85xx (e500-based) SoCs.  The 83xx and 86xx
chips don't have a proper cache for this.  U-Boot has been updated to add
stashing properties to the device tree nodes of gianfar devices on 85xx.  So
now we modify Linux to keep stashing off unless those properties are there.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andy Fleming
2009-02-04 16:43:44 -08:00
committed by David S. Miller
parent 0fd56bb5be
commit 4d7902f22b
3 changed files with 38 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/net/gianfar.c
View File

@ -164,6 +164,9 @@ static int gfar_of_init(struct net_device *dev)
struct gfar_private *priv = netdev_priv(dev);
struct device_node *np = priv->node;
char bus_name[MII_BUS_ID_SIZE];
const u32 *stash;
const u32 *stash_len;
const u32 *stash_idx;
if (!np || !of_device_is_available(np))
return -ENODEV;
@ -193,6 +196,26 @@ static int gfar_of_init(struct net_device *dev)
}
}
stash = of_get_property(np, "bd-stash", NULL);
if(stash) {
priv->device_flags |= FSL_GIANFAR_DEV_HAS_BD_STASHING;
priv->bd_stash_en = 1;
}
stash_len = of_get_property(np, "rx-stash-len", NULL);
if (stash_len)
priv->rx_stash_size = *stash_len;
stash_idx = of_get_property(np, "rx-stash-idx", NULL);
if (stash_idx)
priv->rx_stash_index = *stash_idx;
if (stash_len || stash_idx)
priv->device_flags |= FSL_GIANFAR_DEV_HAS_BUF_STASHING;
mac_addr = of_get_mac_address(np);
if (mac_addr)
memcpy(dev->dev_addr, mac_addr, MAC_ADDR_LEN);