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authorHans de Goede <hdegoede@redhat.com>2015-08-23 20:31:38 +0200
committerDavid S. Miller <davem@davemloft.net>2015-08-25 13:48:59 -0700
commit542a64c7076565d73eea39057113914e1607db30 (patch)
tree49e1268b1aca59004dfcc38a368aa2e1a5e9b833 /drivers/net/ethernet/allwinner
parentinetpeer: remove dead code (diff)
downloadlinux-dev-542a64c7076565d73eea39057113914e1607db30.tar.xz
linux-dev-542a64c7076565d73eea39057113914e1607db30.zip
net: sun4i-emac: Claim emac sram
Claim the emac sram ourselves, rather then relying on the bootloader having mapped the sram to the emac controller during boot. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/allwinner')
-rw-r--r--drivers/net/ethernet/allwinner/sun4i-emac.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index bab01c849165..48ce83e443c2 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -28,6 +28,7 @@
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/phy.h>
+#include <linux/soc/sunxi/sunxi_sram.h>
#include "sun4i-emac.h"
@@ -857,11 +858,17 @@ static int emac_probe(struct platform_device *pdev)
clk_prepare_enable(db->clk);
+ ret = sunxi_sram_claim(&pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "Error couldn't map SRAM to device\n");
+ goto out;
+ }
+
db->phy_node = of_parse_phandle(np, "phy", 0);
if (!db->phy_node) {
dev_err(&pdev->dev, "no associated PHY\n");
ret = -ENODEV;
- goto out;
+ goto out_release_sram;
}
/* Read MAC-address from DT */
@@ -893,7 +900,7 @@ static int emac_probe(struct platform_device *pdev)
if (ret) {
dev_err(&pdev->dev, "Registering netdev failed!\n");
ret = -ENODEV;
- goto out;
+ goto out_release_sram;
}
dev_info(&pdev->dev, "%s: at %p, IRQ %d MAC: %pM\n",
@@ -901,6 +908,8 @@ static int emac_probe(struct platform_device *pdev)
return 0;
+out_release_sram:
+ sunxi_sram_release(&pdev->dev);
out:
dev_err(db->dev, "not found (%d).\n", ret);