Merge branch 'gianfar-ls1021a-ptp'

Yangbo Lu says: ==================== gianfar: Add PTP support for ls1021a platform This patchset is to enable ptp support for ls1021a platform. The endianness issue in gianfar driver and gianfar ptp driver must be fixed, and a 1588 timer node must be added into dts. Changes for v2: - Modified commit message - Added more reviewers ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
mariux64 · Feb 25, 2016 · 4b69d87 · 4b69d87
2 parents 407353e + f54af12
commit 4b69d87
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Showing 3 changed files with 27 additions and 22 deletions.
diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
@@ -457,6 +457,18 @@
 			reg = <0x0 0x2d24000 0x0 0x4000>;
 		};
 
+		ptp_clock@2d10e00 {
+			compatible = "fsl,etsec-ptp";
+			reg = <0x0 0x2d10e00 0x0 0xb0>;
+			interrupts = <GIC_SPI 173 IRQ_TYPE_LEVEL_HIGH>;
+			fsl,tclk-period = <5>;
+			fsl,tmr-prsc    = <2>;
+			fsl,tmr-add     = <0xaaaaaaab>;
+			fsl,tmr-fiper1  = <999999990>;
+			fsl,tmr-fiper2  = <99990>;
+			fsl,max-adj     = <499999999>;
+		};
+
 		enet0: ethernet@2d10000 {
 			compatible = "fsl,etsec2";
 			device_type = "network";

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
@@ -2706,7 +2706,7 @@ static void gfar_clean_tx_ring(struct gfar_priv_tx_q *tx_queue)
 					  ~0x7UL);
 
 			memset(&shhwtstamps, 0, sizeof(shhwtstamps));
-			shhwtstamps.hwtstamp = ns_to_ktime(*ns);
+			shhwtstamps.hwtstamp = ns_to_ktime(be64_to_cpu(*ns));
 			skb_pull(skb, GMAC_FCB_LEN + GMAC_TXPAL_LEN);
 			skb_tstamp_tx(skb, &shhwtstamps);
 			gfar_clear_txbd_status(bdp);
@@ -3035,7 +3035,7 @@ static void gfar_process_frame(struct net_device *ndev, struct sk_buff *skb)
 		u64 *ns = (u64 *) skb->data;
 
 		memset(shhwtstamps, 0, sizeof(*shhwtstamps));
-		shhwtstamps->hwtstamp = ns_to_ktime(*ns);
+		shhwtstamps->hwtstamp = ns_to_ktime(be64_to_cpu(*ns));
 	}
 
 	if (priv->padding)

diff --git a/drivers/net/ethernet/freescale/gianfar_ptp.c b/drivers/net/ethernet/freescale/gianfar_ptp.c
@@ -422,19 +422,6 @@ static struct ptp_clock_info ptp_gianfar_caps = {
 	.enable		= ptp_gianfar_enable,
 };
 
-/* OF device tree */
-
-static int get_of_u32(struct device_node *node, char *str, u32 *val)
-{
-	int plen;
-	const u32 *prop = of_get_property(node, str, &plen);
-
-	if (!prop || plen != sizeof(*prop))
-		return -1;
-	*val = *prop;
-	return 0;
-}
-
 static int gianfar_ptp_probe(struct platform_device *dev)
 {
 	struct device_node *node = dev->dev.of_node;
@@ -452,15 +439,21 @@ static int gianfar_ptp_probe(struct platform_device *dev)
 
 	etsects->caps = ptp_gianfar_caps;
 
-	if (get_of_u32(node, "fsl,cksel", &etsects->cksel))
+	if (of_property_read_u32(node, "fsl,cksel", &etsects->cksel))
 		etsects->cksel = DEFAULT_CKSEL;
 
-	if (get_of_u32(node, "fsl,tclk-period", &etsects->tclk_period) ||
-	    get_of_u32(node, "fsl,tmr-prsc", &etsects->tmr_prsc) ||
-	    get_of_u32(node, "fsl,tmr-add", &etsects->tmr_add) ||
-	    get_of_u32(node, "fsl,tmr-fiper1", &etsects->tmr_fiper1) ||
-	    get_of_u32(node, "fsl,tmr-fiper2", &etsects->tmr_fiper2) ||
-	    get_of_u32(node, "fsl,max-adj", &etsects->caps.max_adj)) {
+	if (of_property_read_u32(node,
+				 "fsl,tclk-period", &etsects->tclk_period) ||
+	    of_property_read_u32(node,
+				 "fsl,tmr-prsc", &etsects->tmr_prsc) ||
+	    of_property_read_u32(node,
+				 "fsl,tmr-add", &etsects->tmr_add) ||
+	    of_property_read_u32(node,
+				 "fsl,tmr-fiper1", &etsects->tmr_fiper1) ||
+	    of_property_read_u32(node,
+				 "fsl,tmr-fiper2", &etsects->tmr_fiper2) ||
+	    of_property_read_u32(node,
+				 "fsl,max-adj", &etsects->caps.max_adj)) {
 		pr_err("device tree node missing required elements\n");
 		goto no_node;
 	}