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Message-ID: <20150514164421.10220.64659.stgit@tlendack-t1.amdoffice.net>
Date: Thu, 14 May 2015 11:44:21 -0500
From: Tom Lendacky <thomas.lendacky@....com>
To: <netdev@...r.kernel.org>
CC: David Miller <davem@...emloft.net>
Subject: [PATCH net-next v2 5/7] amd-xgbe: Support defining PHY resources in
ETH device node
Simplify the device tree support of the amd-xgbe driver by defining
the PHY-related resources within the ethernet device node. The support
provides backwards compatibility with the original way.
Update the driver version to 1.0.2.
Signed-off-by: Tom Lendacky <thomas.lendacky@....com>
---
Documentation/devicetree/bindings/net/amd-xgbe.txt | 41 ++++++--------------
drivers/net/ethernet/amd/xgbe/xgbe-main.c | 23 +++++++----
drivers/net/ethernet/amd/xgbe/xgbe.h | 2 -
3 files changed, 29 insertions(+), 37 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/amd-xgbe.txt b/Documentation/devicetree/bindings/net/amd-xgbe.txt
index 5dbc55a..4bb624a 100644
--- a/Documentation/devicetree/bindings/net/amd-xgbe.txt
+++ b/Documentation/devicetree/bindings/net/amd-xgbe.txt
@@ -1,16 +1,20 @@
* AMD 10GbE driver (amd-xgbe)
-Required properties (ethernet device):
+Required properties:
- compatible: Should be "amd,xgbe-seattle-v1a"
- reg: Address and length of the register sets for the device
- MAC registers
- PCS registers
+ - SerDes Rx/Tx registers
+ - SerDes integration registers (1/2)
+ - SerDes integration registers (2/2)
- interrupt-parent: Should be the phandle for the interrupt controller
that services interrupts for this device
- interrupts: Should contain the amd-xgbe interrupt(s). The first interrupt
listed is required and is the general device interrupt. If the optional
amd,per-channel-interrupt property is specified, then one additional
- interrupt for each DMA channel supported by the device should be specified
+ interrupt for each DMA channel supported by the device should be specified.
+ The last interrupt listed should be the PCS auto-negotiation interrupt.
- clocks:
- DMA clock for the amd-xgbe device (used for calculating the
correct Rx interrupt watchdog timer value on a DMA channel
@@ -19,28 +23,15 @@ Required properties (ethernet device):
- clock-names: Should be the names of the clocks
- "dma_clk" for the DMA clock
- "ptp_clk" for the PTP clock
-- phy-handle: See ethernet.txt file in the same directory
- phy-mode: See ethernet.txt file in the same directory
-Optional properties (ethernet device):
+Optional properties:
- mac-address: mac address to be assigned to the device. Can be overridden
by UEFI.
- dma-coherent: Present if dma operations are coherent
- amd,per-channel-interrupt: Indicates that Rx and Tx complete will generate
a unique interrupt for each DMA channel - this requires an additional
interrupt be configured for each DMA channel
-
-Required properties (phy device):
-- compatible: Should be "amd,xgbe-phy-seattle-v1a"
-- reg: Address and length of the register sets for the device
- - SerDes Rx/Tx registers
- - SerDes integration registers (1/2)
- - SerDes integration registers (2/2)
-- interrupt-parent: Should be the phandle for the interrupt controller
- that services interrupts for this device
-- interrupts: Should contain the amd-xgbe-phy interrupt.
-
-Optional properties (phy device):
- amd,speed-set: Speed capabilities of the device
0 - 1GbE and 10GbE (default)
1 - 2.5GbE and 10GbE
@@ -63,25 +54,19 @@ Example:
xgbe@...00000 {
compatible = "amd,xgbe-seattle-v1a";
reg = <0 0xe0700000 0 0x80000>,
- <0 0xe0780000 0 0x80000>;
+ <0 0xe0780000 0 0x80000>,
+ <0 0xe1240800 0 0x00400>,
+ <0 0xe1250000 0 0x00060>,
+ <0 0xe1250080 0 0x00004>;
interrupt-parent = <&gic>;
interrupts = <0 325 4>,
- <0 326 1>, <0 327 1>, <0 328 1>, <0 329 1>;
+ <0 326 1>, <0 327 1>, <0 328 1>, <0 329 1>,
+ <0 323 4>;
amd,per-channel-interrupt;
clocks = <&xgbe_dma_clk>, <&xgbe_ptp_clk>;
clock-names = "dma_clk", "ptp_clk";
- phy-handle = <&xgbe_phy>;
phy-mode = "xgmii";
mac-address = [ 02 a1 a2 a3 a4 a5 ];
- };
-
- xgbe_phy@...40800 {
- compatible = "amd,xgbe-phy-seattle-v1a";
- reg = <0 0xe1240800 0 0x00400>,
- <0 0xe1250000 0 0x00060>,
- <0 0xe1250080 0 0x00004>;
- interrupt-parent = <&gic>;
- interrupts = <0 323 4>;
amd,speed-set = <0>;
amd,serdes-blwc = <1>, <1>, <0>;
amd,serdes-cdr-rate = <2>, <2>, <7>;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index 0c219b3..34c521d 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -300,14 +300,21 @@ static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata)
struct platform_device *phy_pdev;
phy_node = of_parse_phandle(dev->of_node, "phy-handle", 0);
- if (!phy_node) {
- dev_err(dev, "unable to locate phy device\n");
- return NULL;
+ if (phy_node) {
+ /* Old style device tree:
+ * The XGBE and PHY resources are separate
+ */
+ phy_pdev = of_find_device_by_node(phy_node);
+ of_node_put(phy_node);
+ } else {
+ /* New style device tree:
+ * The XGBE and PHY resources are grouped together with
+ * the PHY resources listed last
+ */
+ get_device(dev);
+ phy_pdev = pdata->pdev;
}
- phy_pdev = of_find_device_by_node(phy_node);
- of_node_put(phy_node);
-
return phy_pdev;
}
#else /* CONFIG_OF */
@@ -401,14 +408,14 @@ static int xgbe_probe(struct platform_device *pdev)
phy_dev = &phy_pdev->dev;
if (pdev == phy_pdev) {
- /* ACPI:
+ /* New style device tree or ACPI:
* The XGBE and PHY resources are grouped together with
* the PHY resources listed last
*/
phy_memnum = xgbe_resource_count(pdev, IORESOURCE_MEM) - 3;
phy_irqnum = xgbe_resource_count(pdev, IORESOURCE_IRQ) - 1;
} else {
- /* Device tree:
+ /* Old style device tree:
* The XGBE and PHY resources are separate
*/
phy_memnum = 0;
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index b6aecc9..f535d19 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -129,7 +129,7 @@
#include <net/dcbnl.h>
#define XGBE_DRV_NAME "amd-xgbe"
-#define XGBE_DRV_VERSION "1.0.1"
+#define XGBE_DRV_VERSION "1.0.2"
#define XGBE_DRV_DESC "AMD 10 Gigabit Ethernet Driver"
/* Descriptor related defines */
--
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