This series brings a variety of fixes and enhancements for mtk_eth_soc,
adds support for the MT7981 SoC and facilitates sharing the SGMII PCS
code between mtk_eth_soc and mt7530.
Note that this series depends on commit 697c3892d825
("regmap: apply reg_base and reg_downshift for single register ops") to
not break mt7530 pcs register access.
The whole series has been tested on MT7622+MT7531 (BPi-R64),
MT7623+MT7530 (BPi-R2) and MT7981+GPY211 (GL.iNet GL-MT3000).
Changes since v4:
* remove unused dev pointer in struct pcs_mtk_lynxi
* squash link timer check into correct follow-up patch
Changes since v3:
* remove unused #define's
* use BMCR_* instead of #define'ing our own constants
* return before changing registers in case of invalid link timer
Changes since v2:
* improve dt-bindings, convert sgmisys bindings to dt-schema yaml
* fix typo
Changes since v1:
* apply reverse xmas tree everywhere
* improve commit descriptions
* add dt binding documentation
* various small changes addressing all comments received for v1
Daniel Golle (12):
net: ethernet: mtk_eth_soc: add support for MT7981 SoC
dt-bindings: net: mediatek,net: add mt7981-eth binding
dt-bindings: arm: mediatek: sgmiisys: Convert to DT schema
dt-bindings: arm: mediatek: sgmiisys: add MT7981 SoC
net: ethernet: mtk_eth_soc: set MDIO bus clock frequency
net: ethernet: mtk_eth_soc: reset PCS state
net: ethernet: mtk_eth_soc: only write values if needed
net: ethernet: mtk_eth_soc: fix RX data corruption issue
net: ethernet: mtk_eth_soc: ppe: add support for flow accounting
net: pcs: add driver for MediaTek SGMII PCS
net: ethernet: mtk_eth_soc: switch to external PCS driver
net: dsa: mt7530: use external PCS driver
.../arm/mediatek/mediatek,sgmiisys.txt | 27 --
.../arm/mediatek/mediatek,sgmiisys.yaml | 75 +++++
.../devicetree/bindings/net/mediatek,net.yaml | 43 ++-
MAINTAINERS | 7 +
drivers/net/dsa/Kconfig | 1 +
drivers/net/dsa/mt7530.c | 277 ++++------------
drivers/net/dsa/mt7530.h | 47 +--
drivers/net/ethernet/mediatek/Kconfig | 2 +
drivers/net/ethernet/mediatek/mtk_eth_path.c | 14 +-
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 65 +++-
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 100 ++----
drivers/net/ethernet/mediatek/mtk_ppe.c | 114 ++++++-
drivers/net/ethernet/mediatek/mtk_ppe.h | 25 +-
.../net/ethernet/mediatek/mtk_ppe_debugfs.c | 9 +-
.../net/ethernet/mediatek/mtk_ppe_offload.c | 8 +
drivers/net/ethernet/mediatek/mtk_ppe_regs.h | 14 +
drivers/net/ethernet/mediatek/mtk_sgmii.c | 190 ++---------
drivers/net/pcs/Kconfig | 7 +
drivers/net/pcs/Makefile | 1 +
drivers/net/pcs/pcs-mtk-lynxi.c | 301 ++++++++++++++++++
include/linux/pcs/pcs-mtk-lynxi.h | 13 +
21 files changed, 810 insertions(+), 530 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt
create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
create mode 100644 drivers/net/pcs/pcs-mtk-lynxi.c
create mode 100644 include/linux/pcs/pcs-mtk-lynxi.h
base-commit: 6ba8a227fd19d19779005fb66ad7562608e1df83
--
2.39.1
The MediaTek MT7981 SoC comes with two 1G/2.5G SGMII ports, just like
MT7986.
In addition MT7981 is equipped with a built-in 1000Base-T PHY which can
be used with GMAC1.
As many MT7981 boards make use of inverting SGMII signal polarity, add
new device-tree attribute 'mediatek,pn_swap' to support them.
Signed-off-by: Daniel Golle <[email protected]>
---
drivers/net/ethernet/mediatek/mtk_eth_path.c | 14 +++++++--
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 21 +++++++++++++
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 31 ++++++++++++++++++++
drivers/net/ethernet/mediatek/mtk_sgmii.c | 10 +++++++
4 files changed, 73 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_path.c b/drivers/net/ethernet/mediatek/mtk_eth_path.c
index 72648535a14d..317e447f4991 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_path.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_path.c
@@ -96,12 +96,20 @@ static int set_mux_gmac2_gmac0_to_gephy(struct mtk_eth *eth, int path)
static int set_mux_u3_gmac2_to_qphy(struct mtk_eth *eth, int path)
{
- unsigned int val = 0;
+ unsigned int val = 0, mask = 0, reg = 0;
bool updated = true;
switch (path) {
case MTK_ETH_PATH_GMAC2_SGMII:
- val = CO_QPHY_SEL;
+ if (MTK_HAS_CAPS(eth->soc->caps, MTK_U3_COPHY_V2)) {
+ reg = USB_PHY_SWITCH_REG;
+ val = SGMII_QPHY_SEL;
+ mask = QPHY_SEL_MASK;
+ } else {
+ reg = INFRA_MISC2;
+ val = CO_QPHY_SEL;
+ mask = val;
+ }
break;
default:
updated = false;
@@ -109,7 +117,7 @@ static int set_mux_u3_gmac2_to_qphy(struct mtk_eth *eth, int path)
}
if (updated)
- regmap_update_bits(eth->infra, INFRA_MISC2, CO_QPHY_SEL, val);
+ regmap_update_bits(eth->infra, reg, mask, val);
dev_dbg(eth->dev, "path %s in %s updated = %d\n",
mtk_eth_path_name(path), __func__, updated);
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 14be6ea51b88..cfb15a84b894 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -4860,6 +4860,26 @@ static const struct mtk_soc_data mt7629_data = {
},
};
+static const struct mtk_soc_data mt7981_data = {
+ .reg_map = &mt7986_reg_map,
+ .ana_rgc3 = 0x128,
+ .caps = MT7981_CAPS,
+ .hw_features = MTK_HW_FEATURES,
+ .required_clks = MT7981_CLKS_BITMAP,
+ .required_pctl = false,
+ .offload_version = 2,
+ .hash_offset = 4,
+ .foe_entry_size = sizeof(struct mtk_foe_entry),
+ .txrx = {
+ .txd_size = sizeof(struct mtk_tx_dma_v2),
+ .rxd_size = sizeof(struct mtk_rx_dma_v2),
+ .rx_irq_done_mask = MTK_RX_DONE_INT_V2,
+ .rx_dma_l4_valid = RX_DMA_L4_VALID_V2,
+ .dma_max_len = MTK_TX_DMA_BUF_LEN_V2,
+ .dma_len_offset = 8,
+ },
+};
+
static const struct mtk_soc_data mt7986_data = {
.reg_map = &mt7986_reg_map,
.ana_rgc3 = 0x128,
@@ -4902,6 +4922,7 @@ const struct of_device_id of_mtk_match[] = {
{ .compatible = "mediatek,mt7622-eth", .data = &mt7622_data},
{ .compatible = "mediatek,mt7623-eth", .data = &mt7623_data},
{ .compatible = "mediatek,mt7629-eth", .data = &mt7629_data},
+ { .compatible = "mediatek,mt7981-eth", .data = &mt7981_data},
{ .compatible = "mediatek,mt7986-eth", .data = &mt7986_data},
{ .compatible = "ralink,rt5350-eth", .data = &rt5350_data},
{},
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index afc9d52e79bf..7230dcb29315 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -551,11 +551,22 @@
#define SGMSYS_QPHY_PWR_STATE_CTRL 0xe8
#define SGMII_PHYA_PWD BIT(4)
+/* Register to QPHY wrapper control */
+#define SGMSYS_QPHY_WRAP_CTRL 0xec
+#define SGMII_PN_SWAP_MASK GENMASK(1, 0)
+#define SGMII_PN_SWAP_TX_RX (BIT(0) | BIT(1))
+#define MTK_SGMII_FLAG_PN_SWAP BIT(0)
+
/* Infrasys subsystem config registers */
#define INFRA_MISC2 0x70c
#define CO_QPHY_SEL BIT(0)
#define GEPHY_MAC_SEL BIT(1)
+/* Top misc registers */
+#define USB_PHY_SWITCH_REG 0x218
+#define QPHY_SEL_MASK GENMASK(1, 0)
+#define SGMII_QPHY_SEL 0x2
+
/* MT7628/88 specific stuff */
#define MT7628_PDMA_OFFSET 0x0800
#define MT7628_SDM_OFFSET 0x0c00
@@ -736,6 +747,17 @@ enum mtk_clks_map {
BIT(MTK_CLK_SGMII2_CDR_FB) | \
BIT(MTK_CLK_SGMII_CK) | \
BIT(MTK_CLK_ETH2PLL) | BIT(MTK_CLK_SGMIITOP))
+#define MT7981_CLKS_BITMAP (BIT(MTK_CLK_FE) | BIT(MTK_CLK_GP2) | BIT(MTK_CLK_GP1) | \
+ BIT(MTK_CLK_WOCPU0) | \
+ BIT(MTK_CLK_SGMII_TX_250M) | \
+ BIT(MTK_CLK_SGMII_RX_250M) | \
+ BIT(MTK_CLK_SGMII_CDR_REF) | \
+ BIT(MTK_CLK_SGMII_CDR_FB) | \
+ BIT(MTK_CLK_SGMII2_TX_250M) | \
+ BIT(MTK_CLK_SGMII2_RX_250M) | \
+ BIT(MTK_CLK_SGMII2_CDR_REF) | \
+ BIT(MTK_CLK_SGMII2_CDR_FB) | \
+ BIT(MTK_CLK_SGMII_CK))
#define MT7986_CLKS_BITMAP (BIT(MTK_CLK_FE) | BIT(MTK_CLK_GP2) | BIT(MTK_CLK_GP1) | \
BIT(MTK_CLK_WOCPU1) | BIT(MTK_CLK_WOCPU0) | \
BIT(MTK_CLK_SGMII_TX_250M) | \
@@ -849,6 +871,7 @@ enum mkt_eth_capabilities {
MTK_NETSYS_V2_BIT,
MTK_SOC_MT7628_BIT,
MTK_RSTCTRL_PPE1_BIT,
+ MTK_U3_COPHY_V2_BIT,
/* MUX BITS*/
MTK_ETH_MUX_GDM1_TO_GMAC1_ESW_BIT,
@@ -883,6 +906,7 @@ enum mkt_eth_capabilities {
#define MTK_NETSYS_V2 BIT(MTK_NETSYS_V2_BIT)
#define MTK_SOC_MT7628 BIT(MTK_SOC_MT7628_BIT)
#define MTK_RSTCTRL_PPE1 BIT(MTK_RSTCTRL_PPE1_BIT)
+#define MTK_U3_COPHY_V2 BIT(MTK_U3_COPHY_V2_BIT)
#define MTK_ETH_MUX_GDM1_TO_GMAC1_ESW \
BIT(MTK_ETH_MUX_GDM1_TO_GMAC1_ESW_BIT)
@@ -955,6 +979,11 @@ enum mkt_eth_capabilities {
MTK_MUX_U3_GMAC2_TO_QPHY | \
MTK_MUX_GMAC12_TO_GEPHY_SGMII | MTK_QDMA)
+#define MT7981_CAPS (MTK_GMAC1_SGMII | MTK_GMAC2_SGMII | MTK_GMAC2_GEPHY | \
+ MTK_MUX_GMAC12_TO_GEPHY_SGMII | MTK_QDMA | \
+ MTK_MUX_U3_GMAC2_TO_QPHY | MTK_U3_COPHY_V2 | \
+ MTK_NETSYS_V2 | MTK_RSTCTRL_PPE1)
+
#define MT7986_CAPS (MTK_GMAC1_SGMII | MTK_GMAC2_SGMII | \
MTK_MUX_GMAC12_TO_GEPHY_SGMII | MTK_QDMA | \
MTK_NETSYS_V2 | MTK_RSTCTRL_PPE1)
@@ -1068,12 +1097,14 @@ struct mtk_soc_data {
* @ana_rgc3: The offset refers to register ANA_RGC3 related to regmap
* @interface: Currently configured interface mode
* @pcs: Phylink PCS structure
+ * @flags: Flags indicating hardware properties
*/
struct mtk_pcs {
struct regmap *regmap;
u32 ana_rgc3;
phy_interface_t interface;
struct phylink_pcs pcs;
+ u32 flags;
};
/* struct mtk_sgmii - This is the structure holding sgmii regmap and its
diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c
index bb00de1003ac..d7ffaaeaf9ab 100644
--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c
+++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c
@@ -88,6 +88,11 @@ static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
regmap_update_bits(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL,
SGMII_PHYA_PWD, SGMII_PHYA_PWD);
+ if (mpcs->flags & MTK_SGMII_FLAG_PN_SWAP)
+ regmap_update_bits(mpcs->regmap, SGMSYS_QPHY_WRAP_CTRL,
+ SGMII_PN_SWAP_MASK,
+ SGMII_PN_SWAP_TX_RX);
+
if (interface == PHY_INTERFACE_MODE_2500BASEX)
rgc3 = RG_PHY_SPEED_3_125G;
else
@@ -182,6 +187,11 @@ int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3)
ss->pcs[i].ana_rgc3 = ana_rgc3;
ss->pcs[i].regmap = syscon_node_to_regmap(np);
+
+ ss->pcs[i].flags = 0;
+ if (of_property_read_bool(np, "mediatek,pnswap"))
+ ss->pcs[i].flags |= MTK_SGMII_FLAG_PN_SWAP;
+
of_node_put(np);
if (IS_ERR(ss->pcs[i].regmap))
return PTR_ERR(ss->pcs[i].regmap);
--
2.39.1
Introduce DT bindings for the MT7981 SoC to mediatek,net.yaml.
Signed-off-by: Daniel Golle <[email protected]>
---
.../devicetree/bindings/net/mediatek,net.yaml | 43 ++++++++++++++++++-
1 file changed, 41 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
index 7ef696204c5a..76a46a7b8228 100644
--- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
+++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
@@ -21,6 +21,7 @@ properties:
- mediatek,mt7623-eth
- mediatek,mt7622-eth
- mediatek,mt7629-eth
+ - mediatek,mt7981-eth
- mediatek,mt7986-eth
- ralink,rt5350-eth
@@ -210,7 +211,7 @@ allOf:
properties:
compatible:
contains:
- const: mediatek,mt7986-eth
+ const: mediatek,mt7981-eth
then:
properties:
interrupts:
@@ -225,8 +226,8 @@ allOf:
- const: fe
- const: gp2
- const: gp1
- - const: wocpu1
- const: wocpu0
+ - const: sgmii_ck
- const: sgmii_tx250m
- const: sgmii_rx250m
- const: sgmii_cdr_ref
@@ -247,6 +248,44 @@ allOf:
description:
Phandle to the mediatek wed-pcie controller.
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: mediatek,mt7986-eth
+ then:
+ properties:
+ interrupts:
+ minItems: 4
+
+ clocks:
+ minItems: 15
+ maxItems: 15
+
+ clock-names:
+ items:
+ - const: fe
+ - const: gp2
+ - const: gp1
+ - const: wocpu1
+ - const: wocpu0
+ - const: sgmii_tx250m
+ - const: sgmii_rx250m
+ - const: sgmii_cdr_ref
+ - const: sgmii_cdr_fb
+ - const: sgmii2_tx250m
+ - const: sgmii2_rx250m
+ - const: sgmii2_cdr_ref
+ - const: sgmii2_cdr_fb
+ - const: netsys0
+ - const: netsys1
+
+ mediatek,sgmiisys:
+ minItems: 2
+ maxItems: 2
+
+ mediatek,wed-pcie: true
+
patternProperties:
"^mac@[0-1]$":
type: object
--
2.39.1
Convert mediatek,sgmiiisys bindings to DT schema format.
Add maintainer Matthias Brugger, no maintainers were listed in the
original documentation.
As this node is also referenced by the Ethernet controller and used
as SGMII PCS add this fact to the description.
Signed-off-by: Daniel Golle <[email protected]>
---
.../arm/mediatek/mediatek,sgmiisys.txt | 27 ----------
.../arm/mediatek/mediatek,sgmiisys.yaml | 53 +++++++++++++++++++
2 files changed, 53 insertions(+), 27 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt
create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt
deleted file mode 100644
index d2c24c277514..000000000000
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-MediaTek SGMIISYS controller
-============================
-
-The MediaTek SGMIISYS controller provides various clocks to the system.
-
-Required Properties:
-
-- compatible: Should be:
- - "mediatek,mt7622-sgmiisys", "syscon"
- - "mediatek,mt7629-sgmiisys", "syscon"
- - "mediatek,mt7981-sgmiisys_0", "syscon"
- - "mediatek,mt7981-sgmiisys_1", "syscon"
- - "mediatek,mt7986-sgmiisys_0", "syscon"
- - "mediatek,mt7986-sgmiisys_1", "syscon"
-- #clock-cells: Must be 1
-
-The SGMIISYS controller uses the common clk binding from
-Documentation/devicetree/bindings/clock/clock-bindings.txt
-The available clocks are defined in dt-bindings/clock/mt*-clk.h.
-
-Example:
-
-sgmiisys: sgmiisys@1b128000 {
- compatible = "mediatek,mt7622-sgmiisys", "syscon";
- reg = <0 0x1b128000 0 0x1000>;
- #clock-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
new file mode 100644
index 000000000000..99ceb08ad7c0
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,sgmiisys.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MediaTek SGMIISYS Controller
+
+maintainers:
+ - Matthias Brugger <[email protected]>
+
+description:
+ The MediaTek SGMIISYS controller provides SGMII related clocks to the system
+ and is used by the Ethernet controller as SGMII PCS.
+
+properties:
+ $nodename:
+ pattern: "^syscon@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - mediatek,mt7622-sgmiisys
+ - mediatek,mt7629-sgmiisys
+ - mediatek,mt7986-sgmiisys_0
+ - mediatek,mt7986-sgmiisys_1
+ - const: syscon
+
+ reg:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ sgmiisys: syscon@1b128000 {
+ compatible = "mediatek,mt7622-sgmiisys", "syscon";
+ reg = <0 0x1b128000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+ };
--
2.39.1
Add mediatek,pnswap boolean property as well as an example for the
MediaTek MT7981 SoC making use of that new property.
Signed-off-by: Daniel Golle <[email protected]>
---
.../arm/mediatek/mediatek,sgmiisys.yaml | 22 +++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
index 99ceb08ad7c0..97d4ab70e541 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
@@ -23,6 +23,8 @@ properties:
- enum:
- mediatek,mt7622-sgmiisys
- mediatek,mt7629-sgmiisys
+ - mediatek,mt7981-sgmiisys_0
+ - mediatek,mt7981-sgmiisys_1
- mediatek,mt7986-sgmiisys_0
- mediatek,mt7986-sgmiisys_1
- const: syscon
@@ -33,6 +35,10 @@ properties:
'#clock-cells':
const: 1
+ mediatek,pnswap:
+ description: Invert polarity of the SGMII data lanes
+ type: boolean
+
required:
- compatible
- reg
@@ -51,3 +57,19 @@ examples:
#clock-cells = <1>;
};
};
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ sgmiisys0: syscon@10060000 {
+ compatible = "mediatek,mt7981-sgmiisys_0", "syscon";
+ reg = <0 0x10060000 0 0x1000>;
+ mediatek,pnswap;
+ #clock-cells = <1>;
+ };
+ sgmiisys1: syscon@10070000 {
+ compatible = "mediatek,mt7981-sgmiisys_1", "syscon";
+ reg = <0 0x10070000 0 0x1000>;
+ #clock-cells = <1>;
+ };
+ };
--
2.39.1
Set MDIO bus clock frequency and allow setting a custom maximum
frequency from device tree.
Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Tested-by: Bj?rn Mork <[email protected]>
Signed-off-by: Daniel Golle <[email protected]>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 21 +++++++++++++++++++++
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 7 +++++++
2 files changed, 28 insertions(+)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index cfb15a84b894..030d87c42bd4 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -789,8 +789,10 @@ static const struct phylink_mac_ops mtk_phylink_ops = {
static int mtk_mdio_init(struct mtk_eth *eth)
{
+ unsigned int max_clk = 2500000, divider;
struct device_node *mii_np;
int ret;
+ u32 val;
mii_np = of_get_child_by_name(eth->dev->of_node, "mdio-bus");
if (!mii_np) {
@@ -818,6 +820,25 @@ static int mtk_mdio_init(struct mtk_eth *eth)
eth->mii_bus->parent = eth->dev;
snprintf(eth->mii_bus->id, MII_BUS_ID_SIZE, "%pOFn", mii_np);
+
+ if (!of_property_read_u32(mii_np, "clock-frequency", &val)) {
+ if (val > MDC_MAX_FREQ || val < MDC_MAX_FREQ / MDC_MAX_DIVIDER) {
+ dev_err(eth->dev, "MDIO clock frequency out of range");
+ ret = -EINVAL;
+ goto err_put_node;
+ }
+ max_clk = val;
+ }
+ divider = min_t(unsigned int, DIV_ROUND_UP(MDC_MAX_FREQ, max_clk), 63);
+
+ /* Configure MDC Divider */
+ val = mtk_r32(eth, MTK_PPSC);
+ val &= ~PPSC_MDC_CFG;
+ val |= FIELD_PREP(PPSC_MDC_CFG, divider) | PPSC_MDC_TURBO;
+ mtk_w32(eth, val, MTK_PPSC);
+
+ dev_dbg(eth->dev, "MDC is running on %d Hz\n", MDC_MAX_FREQ / divider);
+
ret = of_mdiobus_register(eth->mii_bus, mii_np);
err_put_node:
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index 7230dcb29315..7014c02ba2d4 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -363,6 +363,13 @@
#define RX_DMA_VTAG_V2 BIT(0)
#define RX_DMA_L4_VALID_V2 BIT(2)
+/* PHY Polling and SMI Master Control registers */
+#define MTK_PPSC 0x10000
+#define PPSC_MDC_CFG GENMASK(29, 24)
+#define PPSC_MDC_TURBO BIT(20)
+#define MDC_MAX_FREQ 25000000
+#define MDC_MAX_DIVIDER 63
+
/* PHY Indirect Access Control registers */
#define MTK_PHY_IAC 0x10004
#define PHY_IAC_ACCESS BIT(31)
--
2.39.1
Reset PCS state when changing interface mode.
Reviewed-by: Russell King (Oracle) <[email protected]>
Tested-by: Bj?rn Mork <[email protected]>
Signed-off-by: Daniel Golle <[email protected]>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 4 ++++
drivers/net/ethernet/mediatek/mtk_sgmii.c | 4 ++++
2 files changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index 7014c02ba2d4..142def8629c8 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -548,6 +548,10 @@
#define SGMII_SEND_AN_ERROR_EN BIT(11)
#define SGMII_IF_MODE_MASK GENMASK(5, 1)
+/* Register to reset SGMII design */
+#define SGMII_RESERVED_0 0x34
+#define SGMII_SW_RESET BIT(0)
+
/* Register to set SGMII speed, ANA RG_ Control Signals III*/
#define SGMSYS_ANA_RG_CS3 0x2028
#define RG_PHY_SPEED_MASK (BIT(2) | BIT(3))
diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c
index d7ffaaeaf9ab..d7e7352041a4 100644
--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c
+++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c
@@ -88,6 +88,10 @@ static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
regmap_update_bits(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL,
SGMII_PHYA_PWD, SGMII_PHYA_PWD);
+ /* Reset SGMII PCS state */
+ regmap_update_bits(mpcs->regmap, SGMII_RESERVED_0,
+ SGMII_SW_RESET, SGMII_SW_RESET);
+
if (mpcs->flags & MTK_SGMII_FLAG_PN_SWAP)
regmap_update_bits(mpcs->regmap, SGMSYS_QPHY_WRAP_CTRL,
SGMII_PN_SWAP_MASK,
--
2.39.1
Only restart auto-negotiation and write link timer if actually
necessary.
Reviewed-by: Russell King (Oracle) <[email protected]>
Tested-by: Bj?rn Mork <[email protected]>
Signed-off-by: Daniel Golle <[email protected]>
---
drivers/net/ethernet/mediatek/mtk_sgmii.c | 24 +++++++++++------------
1 file changed, 12 insertions(+), 12 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c
index d7e7352041a4..61bd9986466a 100644
--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c
+++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c
@@ -38,20 +38,16 @@ static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
const unsigned long *advertising,
bool permit_pause_to_mac)
{
+ bool mode_changed = false, changed, use_an;
struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs);
unsigned int rgc3, sgm_mode, bmcr;
int advertise, link_timer;
- bool changed, use_an;
advertise = phylink_mii_c22_pcs_encode_advertisement(interface,
advertising);
if (advertise < 0)
return advertise;
- link_timer = phylink_get_link_timer_ns(interface);
- if (link_timer < 0)
- return link_timer;
-
/* Clearing IF_MODE_BIT0 switches the PCS to BASE-X mode, and
* we assume that fixes it's speed at bitrate = line rate (in
* other words, 1000Mbps or 2500Mbps).
@@ -77,13 +73,16 @@ static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
}
if (use_an) {
- /* FIXME: Do we need to set AN_RESTART here? */
- bmcr = SGMII_AN_RESTART | SGMII_AN_ENABLE;
+ bmcr = SGMII_AN_ENABLE;
} else {
bmcr = 0;
}
if (mpcs->interface != interface) {
+ link_timer = phylink_get_link_timer_ns(interface);
+ if (link_timer < 0)
+ return link_timer;
+
/* PHYA power down */
regmap_update_bits(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL,
SGMII_PHYA_PWD, SGMII_PHYA_PWD);
@@ -106,16 +105,17 @@ static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
regmap_update_bits(mpcs->regmap, mpcs->ana_rgc3,
RG_PHY_SPEED_3_125G, rgc3);
+ /* Setup the link timer */
+ regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER, link_timer / 2 / 8);
+
mpcs->interface = interface;
+ mode_changed = true;
}
/* Update the advertisement, noting whether it has changed */
regmap_update_bits_check(mpcs->regmap, SGMSYS_PCS_ADVERTISE,
SGMII_ADVERTISE, advertise, &changed);
- /* Setup the link timer and QPHY power up inside SGMIISYS */
- regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER, link_timer / 2 / 8);
-
/* Update the sgmsys mode register */
regmap_update_bits(mpcs->regmap, SGMSYS_SGMII_MODE,
SGMII_REMOTE_FAULT_DIS | SGMII_SPEED_DUPLEX_AN |
@@ -123,7 +123,7 @@ static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
/* Update the BMCR */
regmap_update_bits(mpcs->regmap, SGMSYS_PCS_CONTROL_1,
- SGMII_AN_RESTART | SGMII_AN_ENABLE, bmcr);
+ SGMII_AN_ENABLE, bmcr);
/* Release PHYA power down state
* Only removing bit SGMII_PHYA_PWD isn't enough.
@@ -137,7 +137,7 @@ static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
usleep_range(50, 100);
regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, 0);
- return changed;
+ return changed || mode_changed;
}
static void mtk_pcs_restart_an(struct phylink_pcs *pcs)
--
2.39.1
Also set bit 12 when setting up MAC MCR, as MediaTek SDK did the same
change stating:
"If without this patch, kernel might receive invalid packets that are
corrupted by GMAC."[1]
[1]: https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/d8a2975939a12686c4a95c40db21efdc3f821f63
Tested-by: Bj?rn Mork <[email protected]>
Signed-off-by: Daniel Golle <[email protected]>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 2 +-
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 030d87c42bd4..fa61eefe0a61 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -615,7 +615,7 @@ static int mtk_mac_finish(struct phylink_config *config, unsigned int mode,
/* Setup gmac */
mcr_cur = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id));
mcr_new = mcr_cur;
- mcr_new |= MAC_MCR_IPG_CFG | MAC_MCR_FORCE_MODE |
+ mcr_new |= MAC_MCR_IPG_CFG | MAC_MCR_BIT_12 | MAC_MCR_FORCE_MODE |
MAC_MCR_BACKOFF_EN | MAC_MCR_BACKPR_EN | MAC_MCR_FORCE_LINK;
/* Only update control register when needed! */
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index 142def8629c8..084d07c96c04 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -404,6 +404,7 @@
#define MAC_MCR_FORCE_MODE BIT(15)
#define MAC_MCR_TX_EN BIT(14)
#define MAC_MCR_RX_EN BIT(13)
+#define MAC_MCR_BIT_12 BIT(12)
#define MAC_MCR_BACKOFF_EN BIT(9)
#define MAC_MCR_BACKPR_EN BIT(8)
#define MAC_MCR_FORCE_RX_FC BIT(5)
--
2.39.1
The PPE units found in MT7622 and newer support packet and byte
accounting of hw-offloaded flows. Add support for reading those counters
as found in MediaTek's SDK[1].
[1]: https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/bc6a6a375c800dc2b80e1a325a2c732d1737df92
Tested-by: Bj?rn Mork <[email protected]>
Signed-off-by: Daniel Golle <[email protected]>
---
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 8 +-
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 1 +
drivers/net/ethernet/mediatek/mtk_ppe.c | 114 +++++++++++++++++-
drivers/net/ethernet/mediatek/mtk_ppe.h | 25 +++-
.../net/ethernet/mediatek/mtk_ppe_debugfs.c | 9 +-
.../net/ethernet/mediatek/mtk_ppe_offload.c | 8 ++
drivers/net/ethernet/mediatek/mtk_ppe_regs.h | 14 +++
7 files changed, 170 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index fa61eefe0a61..2c4414449af6 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -4711,8 +4711,8 @@ static int mtk_probe(struct platform_device *pdev)
for (i = 0; i < num_ppe; i++) {
u32 ppe_addr = eth->soc->reg_map->ppe_base + i * 0x400;
- eth->ppe[i] = mtk_ppe_init(eth, eth->base + ppe_addr,
- eth->soc->offload_version, i);
+ eth->ppe[i] = mtk_ppe_init(eth, eth->base + ppe_addr, i);
+
if (!eth->ppe[i]) {
err = -ENOMEM;
goto err_deinit_ppe;
@@ -4834,6 +4834,7 @@ static const struct mtk_soc_data mt7622_data = {
.required_pctl = false,
.offload_version = 2,
.hash_offset = 2,
+ .has_accounting = true,
.foe_entry_size = sizeof(struct mtk_foe_entry) - 16,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
@@ -4871,6 +4872,7 @@ static const struct mtk_soc_data mt7629_data = {
.hw_features = MTK_HW_FEATURES,
.required_clks = MT7629_CLKS_BITMAP,
.required_pctl = false,
+ .has_accounting = true,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma),
.rxd_size = sizeof(struct mtk_rx_dma),
@@ -4891,6 +4893,7 @@ static const struct mtk_soc_data mt7981_data = {
.offload_version = 2,
.hash_offset = 4,
.foe_entry_size = sizeof(struct mtk_foe_entry),
+ .has_accounting = true,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma_v2),
.rxd_size = sizeof(struct mtk_rx_dma_v2),
@@ -4911,6 +4914,7 @@ static const struct mtk_soc_data mt7986_data = {
.offload_version = 2,
.hash_offset = 4,
.foe_entry_size = sizeof(struct mtk_foe_entry),
+ .has_accounting = true,
.txrx = {
.txd_size = sizeof(struct mtk_tx_dma_v2),
.rxd_size = sizeof(struct mtk_rx_dma_v2),
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index 084d07c96c04..c2e0fd773cc2 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -1087,6 +1087,7 @@ struct mtk_soc_data {
u8 hash_offset;
u16 foe_entry_size;
netdev_features_t hw_features;
+ bool has_accounting;
struct {
u32 txd_size;
u32 rxd_size;
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe.c b/drivers/net/ethernet/mediatek/mtk_ppe.c
index 6883eb34cd8b..c099e8736716 100644
--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
@@ -74,6 +74,48 @@ static int mtk_ppe_wait_busy(struct mtk_ppe *ppe)
return ret;
}
+static int mtk_ppe_mib_wait_busy(struct mtk_ppe *ppe)
+{
+ int ret;
+ u32 val;
+
+ ret = readl_poll_timeout(ppe->base + MTK_PPE_MIB_SER_CR, val,
+ !(val & MTK_PPE_MIB_SER_CR_ST),
+ 20, MTK_PPE_WAIT_TIMEOUT_US);
+
+ if (ret)
+ dev_err(ppe->dev, "MIB table busy");
+
+ return ret;
+}
+
+static int mtk_mib_entry_read(struct mtk_ppe *ppe, u16 index, u64 *bytes, u64 *packets)
+{
+ u32 byte_cnt_low, byte_cnt_high, pkt_cnt_low, pkt_cnt_high;
+ u32 val, cnt_r0, cnt_r1, cnt_r2;
+ int ret;
+
+ val = FIELD_PREP(MTK_PPE_MIB_SER_CR_ADDR, index) | MTK_PPE_MIB_SER_CR_ST;
+ ppe_w32(ppe, MTK_PPE_MIB_SER_CR, val);
+
+ ret = mtk_ppe_mib_wait_busy(ppe);
+ if (ret)
+ return ret;
+
+ cnt_r0 = readl(ppe->base + MTK_PPE_MIB_SER_R0);
+ cnt_r1 = readl(ppe->base + MTK_PPE_MIB_SER_R1);
+ cnt_r2 = readl(ppe->base + MTK_PPE_MIB_SER_R2);
+
+ byte_cnt_low = FIELD_GET(MTK_PPE_MIB_SER_R0_BYTE_CNT_LOW, cnt_r0);
+ byte_cnt_high = FIELD_GET(MTK_PPE_MIB_SER_R1_BYTE_CNT_HIGH, cnt_r1);
+ pkt_cnt_low = FIELD_GET(MTK_PPE_MIB_SER_R1_PKT_CNT_LOW, cnt_r1);
+ pkt_cnt_high = FIELD_GET(MTK_PPE_MIB_SER_R2_PKT_CNT_HIGH, cnt_r2);
+ *bytes = ((u64)byte_cnt_high << 32) | byte_cnt_low;
+ *packets = (pkt_cnt_high << 16) | pkt_cnt_low;
+
+ return 0;
+}
+
static void mtk_ppe_cache_clear(struct mtk_ppe *ppe)
{
ppe_set(ppe, MTK_PPE_CACHE_CTL, MTK_PPE_CACHE_CTL_CLEAR);
@@ -458,6 +500,13 @@ __mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry)
hwe->ib1 &= ~MTK_FOE_IB1_STATE;
hwe->ib1 |= FIELD_PREP(MTK_FOE_IB1_STATE, MTK_FOE_STATE_INVALID);
dma_wmb();
+ if (ppe->accounting) {
+ struct mtk_foe_accounting *acct;
+
+ acct = ppe->acct_table + entry->hash * sizeof(*acct);
+ acct->packets = 0;
+ acct->bytes = 0;
+ }
}
entry->hash = 0xffff;
@@ -565,6 +614,9 @@ __mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_foe_entry *entry,
wmb();
hwe->ib1 = entry->ib1;
+ if (ppe->accounting)
+ *mtk_foe_entry_ib2(eth, hwe) |= MTK_FOE_IB2_MIB_CNT;
+
dma_wmb();
mtk_ppe_cache_clear(ppe);
@@ -756,11 +808,39 @@ int mtk_ppe_prepare_reset(struct mtk_ppe *ppe)
return mtk_ppe_wait_busy(ppe);
}
-struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
- int version, int index)
+struct mtk_foe_accounting *mtk_foe_entry_get_mib(struct mtk_ppe *ppe, u32 index,
+ struct mtk_foe_accounting *diff)
+{
+ struct mtk_foe_accounting *acct;
+ int size = sizeof(struct mtk_foe_accounting);
+ u64 bytes, packets;
+
+ if (!ppe->accounting)
+ return NULL;
+
+ if (mtk_mib_entry_read(ppe, index, &bytes, &packets))
+ return NULL;
+
+ acct = ppe->acct_table + index * size;
+
+ acct->bytes += bytes;
+ acct->packets += packets;
+
+ if (diff) {
+ diff->bytes = bytes;
+ diff->packets = packets;
+ }
+
+ return acct;
+}
+
+struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base, int index)
{
+ bool accounting = eth->soc->has_accounting;
const struct mtk_soc_data *soc = eth->soc;
+ struct mtk_foe_accounting *acct;
struct device *dev = eth->dev;
+ struct mtk_mib_entry *mib;
struct mtk_ppe *ppe;
u32 foe_flow_size;
void *foe;
@@ -777,7 +857,8 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
ppe->base = base;
ppe->eth = eth;
ppe->dev = dev;
- ppe->version = version;
+ ppe->version = eth->soc->offload_version;
+ ppe->accounting = accounting;
foe = dmam_alloc_coherent(ppe->dev,
MTK_PPE_ENTRIES * soc->foe_entry_size,
@@ -793,6 +874,23 @@ struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
if (!ppe->foe_flow)
goto err_free_l2_flows;
+ if (accounting) {
+ mib = dmam_alloc_coherent(ppe->dev, MTK_PPE_ENTRIES * sizeof(*mib),
+ &ppe->mib_phys, GFP_KERNEL);
+ if (!mib)
+ return NULL;
+
+ ppe->mib_table = mib;
+
+ acct = devm_kzalloc(dev, MTK_PPE_ENTRIES * sizeof(*acct),
+ GFP_KERNEL);
+
+ if (!acct)
+ return NULL;
+
+ ppe->acct_table = acct;
+ }
+
mtk_ppe_debugfs_init(ppe, index);
return ppe;
@@ -922,6 +1020,16 @@ void mtk_ppe_start(struct mtk_ppe *ppe)
ppe_w32(ppe, MTK_PPE_DEFAULT_CPU_PORT1, 0xcb777);
ppe_w32(ppe, MTK_PPE_SBW_CTRL, 0x7f);
}
+
+ if (ppe->accounting && ppe->mib_phys) {
+ ppe_w32(ppe, MTK_PPE_MIB_TB_BASE, ppe->mib_phys);
+ ppe_m32(ppe, MTK_PPE_MIB_CFG, MTK_PPE_MIB_CFG_EN,
+ MTK_PPE_MIB_CFG_EN);
+ ppe_m32(ppe, MTK_PPE_MIB_CFG, MTK_PPE_MIB_CFG_RD_CLR,
+ MTK_PPE_MIB_CFG_RD_CLR);
+ ppe_m32(ppe, MTK_PPE_MIB_CACHE_CTL, MTK_PPE_MIB_CACHE_CTL_EN,
+ MTK_PPE_MIB_CFG_RD_CLR);
+ }
}
int mtk_ppe_stop(struct mtk_ppe *ppe)
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe.h b/drivers/net/ethernet/mediatek/mtk_ppe.h
index 5e8bc48252b1..e1aab2e8e262 100644
--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
@@ -57,6 +57,7 @@ enum {
#define MTK_FOE_IB2_MULTICAST BIT(8)
#define MTK_FOE_IB2_WDMA_QID2 GENMASK(13, 12)
+#define MTK_FOE_IB2_MIB_CNT BIT(15)
#define MTK_FOE_IB2_WDMA_DEVIDX BIT(16)
#define MTK_FOE_IB2_WDMA_WINFO BIT(17)
@@ -285,16 +286,34 @@ struct mtk_flow_entry {
unsigned long cookie;
};
+struct mtk_mib_entry {
+ u32 byt_cnt_l;
+ u16 byt_cnt_h;
+ u32 pkt_cnt_l;
+ u8 pkt_cnt_h;
+ u8 _rsv0;
+ u32 _rsv1;
+} __packed;
+
+struct mtk_foe_accounting {
+ u64 bytes;
+ u64 packets;
+};
+
struct mtk_ppe {
struct mtk_eth *eth;
struct device *dev;
void __iomem *base;
int version;
char dirname[5];
+ bool accounting;
void *foe_table;
dma_addr_t foe_phys;
+ struct mtk_mib_entry *mib_table;
+ dma_addr_t mib_phys;
+
u16 foe_check_time[MTK_PPE_ENTRIES];
struct hlist_head *foe_flow;
@@ -303,8 +322,8 @@ struct mtk_ppe {
void *acct_table;
};
-struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base,
- int version, int index);
+struct mtk_ppe *mtk_ppe_init(struct mtk_eth *eth, void __iomem *base, int index);
+
void mtk_ppe_deinit(struct mtk_eth *eth);
void mtk_ppe_start(struct mtk_ppe *ppe);
int mtk_ppe_stop(struct mtk_ppe *ppe);
@@ -359,5 +378,7 @@ int mtk_foe_entry_commit(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
void mtk_foe_entry_clear(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
int mtk_foe_entry_idle_time(struct mtk_ppe *ppe, struct mtk_flow_entry *entry);
int mtk_ppe_debugfs_init(struct mtk_ppe *ppe, int index);
+struct mtk_foe_accounting *mtk_foe_entry_get_mib(struct mtk_ppe *ppe, u32 index,
+ struct mtk_foe_accounting *diff);
#endif
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c b/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
index 391b071bcff3..53cf87e9acbb 100644
--- a/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_debugfs.c
@@ -82,6 +82,7 @@ mtk_ppe_debugfs_foe_show(struct seq_file *m, void *private, bool bind)
struct mtk_foe_entry *entry = mtk_foe_get_entry(ppe, i);
struct mtk_foe_mac_info *l2;
struct mtk_flow_addr_info ai = {};
+ struct mtk_foe_accounting *acct;
unsigned char h_source[ETH_ALEN];
unsigned char h_dest[ETH_ALEN];
int type, state;
@@ -95,6 +96,8 @@ mtk_ppe_debugfs_foe_show(struct seq_file *m, void *private, bool bind)
if (bind && state != MTK_FOE_STATE_BIND)
continue;
+ acct = mtk_foe_entry_get_mib(ppe, i, NULL);
+
type = FIELD_GET(MTK_FOE_IB1_PACKET_TYPE, entry->ib1);
seq_printf(m, "%05x %s %7s", i,
mtk_foe_entry_state_str(state),
@@ -153,9 +156,11 @@ mtk_ppe_debugfs_foe_show(struct seq_file *m, void *private, bool bind)
*((__be16 *)&h_dest[4]) = htons(l2->dest_mac_lo);
seq_printf(m, " eth=%pM->%pM etype=%04x"
- " vlan=%d,%d ib1=%08x ib2=%08x\n",
+ " vlan=%d,%d ib1=%08x ib2=%08x"
+ " packets=%llu bytes=%llu\n",
h_source, h_dest, ntohs(l2->etype),
- l2->vlan1, l2->vlan2, entry->ib1, ib2);
+ l2->vlan1, l2->vlan2, entry->ib1, ib2,
+ acct ? acct->packets : 0, acct ? acct->bytes : 0);
}
return 0;
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
index 81afd5ee3fbf..f02ccffb1e79 100644
--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
@@ -497,6 +497,7 @@ static int
mtk_flow_offload_stats(struct mtk_eth *eth, struct flow_cls_offload *f)
{
struct mtk_flow_entry *entry;
+ struct mtk_foe_accounting diff;
u32 idle;
entry = rhashtable_lookup(ð->flow_table, &f->cookie,
@@ -507,6 +508,13 @@ mtk_flow_offload_stats(struct mtk_eth *eth, struct flow_cls_offload *f)
idle = mtk_foe_entry_idle_time(eth->ppe[entry->ppe_index], entry);
f->stats.lastused = jiffies - idle * HZ;
+ if (entry->hash != 0xFFFF &&
+ mtk_foe_entry_get_mib(eth->ppe[entry->ppe_index], entry->hash,
+ &diff)) {
+ f->stats.pkts += diff.packets;
+ f->stats.bytes += diff.bytes;
+ }
+
return 0;
}
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe_regs.h b/drivers/net/ethernet/mediatek/mtk_ppe_regs.h
index 0fdb983b0a88..a2e61b3eb006 100644
--- a/drivers/net/ethernet/mediatek/mtk_ppe_regs.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_regs.h
@@ -149,6 +149,20 @@ enum {
#define MTK_PPE_MIB_TB_BASE 0x338
+#define MTK_PPE_MIB_SER_CR 0x33C
+#define MTK_PPE_MIB_SER_CR_ST BIT(16)
+#define MTK_PPE_MIB_SER_CR_ADDR GENMASK(13, 0)
+
+#define MTK_PPE_MIB_SER_R0 0x340
+#define MTK_PPE_MIB_SER_R0_BYTE_CNT_LOW GENMASK(31, 0)
+
+#define MTK_PPE_MIB_SER_R1 0x344
+#define MTK_PPE_MIB_SER_R1_PKT_CNT_LOW GENMASK(31, 16)
+#define MTK_PPE_MIB_SER_R1_BYTE_CNT_HIGH GENMASK(15, 0)
+
+#define MTK_PPE_MIB_SER_R2 0x348
+#define MTK_PPE_MIB_SER_R2_PKT_CNT_HIGH GENMASK(23, 0)
+
#define MTK_PPE_MIB_CACHE_CTL 0x350
#define MTK_PPE_MIB_CACHE_CTL_EN BIT(0)
#define MTK_PPE_MIB_CACHE_CTL_FLUSH BIT(2)
--
2.39.1
The SGMII core found in several MediaTek SoCs is identical to what can
also be found in MediaTek's MT7531 Ethernet switch IC.
As this has not always been clear, both drivers developed different
implementations to deal with the PCS.
Add a dedicated driver, mostly by copying the code now found in the
Ethernet driver. The now redundant code will be removed by a follow-up
commit.
Tested-by: Bj?rn Mork <[email protected]>
Signed-off-by: Daniel Golle <[email protected]>
---
MAINTAINERS | 7 +
drivers/net/pcs/Kconfig | 7 +
drivers/net/pcs/Makefile | 1 +
drivers/net/pcs/pcs-mtk-lynxi.c | 301 ++++++++++++++++++++++++++++++
include/linux/pcs/pcs-mtk-lynxi.h | 13 ++
5 files changed, 329 insertions(+)
create mode 100644 drivers/net/pcs/pcs-mtk-lynxi.c
create mode 100644 include/linux/pcs/pcs-mtk-lynxi.h
diff --git a/MAINTAINERS b/MAINTAINERS
index 57d1d6ecb33d..6e1e264cb086 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13005,6 +13005,13 @@ L: [email protected]
S: Maintained
F: drivers/net/ethernet/mediatek/
+MEDIATEK ETHERNET PCS DRIVER
+M: Daniel Golle <[email protected]>
+L: [email protected]
+S: Maintained
+F: drivers/net/pcs/pcs-mtk-lynxi.c
+F: include/linux/pcs/pcs-mtk-lynxi.h
+
MEDIATEK I2C CONTROLLER DRIVER
M: Qii Wang <[email protected]>
L: [email protected]
diff --git a/drivers/net/pcs/Kconfig b/drivers/net/pcs/Kconfig
index 6e7e6c346a3e..7c34fb7cbf7b 100644
--- a/drivers/net/pcs/Kconfig
+++ b/drivers/net/pcs/Kconfig
@@ -18,6 +18,13 @@ config PCS_LYNX
This module provides helpers to phylink for managing the Lynx PCS
which is part of the Layerscape and QorIQ Ethernet SERDES.
+config PCS_MTK_LYNXI
+ tristate
+ select REGMAP
+ help
+ This module provides helpers to phylink for managing the LynxI PCS
+ which is part of MediaTek's SoC and Ethernet switch ICs.
+
config PCS_RZN1_MIIC
tristate "Renesas RZ/N1 MII converter"
depends on OF && (ARCH_RZN1 || COMPILE_TEST)
diff --git a/drivers/net/pcs/Makefile b/drivers/net/pcs/Makefile
index 4c780d8f2e98..9b9afd6b1c22 100644
--- a/drivers/net/pcs/Makefile
+++ b/drivers/net/pcs/Makefile
@@ -5,5 +5,6 @@ pcs_xpcs-$(CONFIG_PCS_XPCS) := pcs-xpcs.o pcs-xpcs-nxp.o
obj-$(CONFIG_PCS_XPCS) += pcs_xpcs.o
obj-$(CONFIG_PCS_LYNX) += pcs-lynx.o
+obj-$(CONFIG_PCS_MTK_LYNXI) += pcs-mtk-lynxi.o
obj-$(CONFIG_PCS_RZN1_MIIC) += pcs-rzn1-miic.o
obj-$(CONFIG_PCS_ALTERA_TSE) += pcs-altera-tse.o
diff --git a/drivers/net/pcs/pcs-mtk-lynxi.c b/drivers/net/pcs/pcs-mtk-lynxi.c
new file mode 100644
index 000000000000..b1ed84d7c4c5
--- /dev/null
+++ b/drivers/net/pcs/pcs-mtk-lynxi.c
@@ -0,0 +1,301 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018-2019 MediaTek Inc.
+/* A library for MediaTek SGMII circuit
+ *
+ * Author: Sean Wang <[email protected]>
+ * Author: Daniel Golle <[email protected]>
+ *
+ */
+
+#include <linux/mdio.h>
+#include <linux/phylink.h>
+#include <linux/pcs/pcs-mtk-lynxi.h>
+#include <linux/of.h>
+#include <linux/phylink.h>
+#include <linux/regmap.h>
+
+/* SGMII subsystem config registers */
+/* BMCR (low 16) BMSR (high 16) */
+#define SGMSYS_PCS_CONTROL_1 0x0
+#define SGMII_BMCR GENMASK(15, 0)
+#define SGMII_BMSR GENMASK(31, 16)
+
+#define SGMSYS_PCS_DEVICE_ID 0x4
+#define SGMII_LYNXI_DEV_ID 0x4d544950
+
+#define SGMSYS_PCS_ADVERTISE 0x8
+#define SGMII_ADVERTISE GENMASK(15, 0)
+#define SGMII_LPA GENMASK(31, 16)
+
+#define SGMSYS_PCS_SCRATCH 0x14
+#define SGMII_DEV_VERSION GENMASK(31, 16)
+
+/* Register to programmable link timer, the unit in 2 * 8ns */
+#define SGMSYS_PCS_LINK_TIMER 0x18
+#define SGMII_LINK_TIMER_MASK GENMASK(19, 0)
+
+/* Register to control remote fault */
+#define SGMSYS_SGMII_MODE 0x20
+#define SGMII_IF_MODE_SGMII BIT(0)
+#define SGMII_SPEED_DUPLEX_AN BIT(1)
+#define SGMII_SPEED_MASK GENMASK(3, 2)
+#define SGMII_SPEED_10 FIELD_PREP(SGMII_SPEED_MASK, 0)
+#define SGMII_SPEED_100 FIELD_PREP(SGMII_SPEED_MASK, 1)
+#define SGMII_SPEED_1000 FIELD_PREP(SGMII_SPEED_MASK, 2)
+#define SGMII_DUPLEX_HALF BIT(4)
+#define SGMII_REMOTE_FAULT_DIS BIT(8)
+
+/* Register to reset SGMII design */
+#define SGMII_RESERVED_0 0x34
+#define SGMII_SW_RESET BIT(0)
+
+/* Register to set SGMII speed, ANA RG_ Control Signals III */
+#define RG_PHY_SPEED_MASK (BIT(2) | BIT(3))
+#define RG_PHY_SPEED_1_25G 0x0
+#define RG_PHY_SPEED_3_125G BIT(2)
+
+/* Register to power up QPHY */
+#define SGMSYS_QPHY_PWR_STATE_CTRL 0xe8
+#define SGMII_PHYA_PWD BIT(4)
+
+/* Register to QPHY wrapper control */
+#define SGMSYS_QPHY_WRAP_CTRL 0xec
+#define SGMII_PN_SWAP_MASK GENMASK(1, 0)
+#define SGMII_PN_SWAP_TX_RX (BIT(0) | BIT(1))
+
+/* struct mtk_pcs_lynxi - This structure holds each sgmii regmap andassociated
+ * data
+ * @regmap: The register map pointing at the range used to setup
+ * SGMII modes
+ * @dev: Pointer to device owning the PCS
+ * @ana_rgc3: The offset refers to register ANA_RGC3 related to regmap
+ * @interface: Currently configured interface mode
+ * @pcs: Phylink PCS structure
+ * @flags: Flags indicating hardware properties
+ */
+struct mtk_pcs_lynxi {
+ struct regmap *regmap;
+ u32 ana_rgc3;
+ phy_interface_t interface;
+ struct phylink_pcs pcs;
+ u32 flags;
+};
+
+static struct mtk_pcs_lynxi *pcs_to_mtk_pcs_lynxi(struct phylink_pcs *pcs)
+{
+ return container_of(pcs, struct mtk_pcs_lynxi, pcs);
+}
+
+static void mtk_pcs_lynxi_get_state(struct phylink_pcs *pcs,
+ struct phylink_link_state *state)
+{
+ struct mtk_pcs_lynxi *mpcs = pcs_to_mtk_pcs_lynxi(pcs);
+ unsigned int bm, adv;
+
+ /* Read the BMSR and LPA */
+ regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &bm);
+ regmap_read(mpcs->regmap, SGMSYS_PCS_ADVERTISE, &adv);
+
+ phylink_mii_c22_pcs_decode_state(state, FIELD_GET(SGMII_BMSR, bm),
+ FIELD_GET(SGMII_LPA, adv));
+}
+
+static int mtk_pcs_lynxi_config(struct phylink_pcs *pcs, unsigned int mode,
+ phy_interface_t interface,
+ const unsigned long *advertising,
+ bool permit_pause_to_mac)
+{
+ struct mtk_pcs_lynxi *mpcs = pcs_to_mtk_pcs_lynxi(pcs);
+ unsigned int rgc3, sgm_mode, bmcr;
+ int advertise, link_timer;
+ bool mode_changed = false, changed, use_an;
+
+ advertise = phylink_mii_c22_pcs_encode_advertisement(interface,
+ advertising);
+ if (advertise < 0)
+ return advertise;
+
+ /* Clearing IF_MODE_BIT0 switches the PCS to BASE-X mode, and
+ * we assume that fixes it's speed at bitrate = line rate (in
+ * other words, 1000Mbps or 2500Mbps).
+ */
+ if (interface == PHY_INTERFACE_MODE_SGMII) {
+ sgm_mode = SGMII_IF_MODE_SGMII;
+ if (phylink_autoneg_inband(mode)) {
+ sgm_mode |= SGMII_REMOTE_FAULT_DIS |
+ SGMII_SPEED_DUPLEX_AN;
+ use_an = true;
+ } else {
+ use_an = false;
+ }
+ } else if (phylink_autoneg_inband(mode)) {
+ /* 1000base-X or 2500base-X autoneg */
+ sgm_mode = SGMII_REMOTE_FAULT_DIS;
+ use_an = linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
+ advertising);
+ } else {
+ /* 1000base-X or 2500base-X without autoneg */
+ sgm_mode = 0;
+ use_an = false;
+ }
+
+ if (use_an)
+ bmcr = BMCR_ANENABLE;
+ else
+ bmcr = 0;
+
+ if (mpcs->interface != interface) {
+ link_timer = phylink_get_link_timer_ns(interface);
+ if (link_timer < 0)
+ return link_timer;
+
+ /* PHYA power down */
+ regmap_update_bits(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL,
+ SGMII_PHYA_PWD, SGMII_PHYA_PWD);
+
+ /* Reset SGMII PCS state */
+ regmap_update_bits(mpcs->regmap, SGMII_RESERVED_0,
+ SGMII_SW_RESET, SGMII_SW_RESET);
+
+ if (mpcs->flags & MTK_SGMII_FLAG_PN_SWAP)
+ regmap_update_bits(mpcs->regmap, SGMSYS_QPHY_WRAP_CTRL,
+ SGMII_PN_SWAP_MASK,
+ SGMII_PN_SWAP_TX_RX);
+
+ if (interface == PHY_INTERFACE_MODE_2500BASEX)
+ rgc3 = RG_PHY_SPEED_3_125G;
+ else
+ rgc3 = 0;
+
+ /* Configure the underlying interface speed */
+ regmap_update_bits(mpcs->regmap, mpcs->ana_rgc3,
+ RG_PHY_SPEED_MASK, rgc3);
+
+ /* Setup the link timer */
+ regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER, link_timer / 2 / 8);
+
+ mpcs->interface = interface;
+ mode_changed = true;
+ }
+
+ /* Update the advertisement, noting whether it has changed */
+ regmap_update_bits_check(mpcs->regmap, SGMSYS_PCS_ADVERTISE,
+ SGMII_ADVERTISE, advertise, &changed);
+
+ /* Update the sgmsys mode register */
+ regmap_update_bits(mpcs->regmap, SGMSYS_SGMII_MODE,
+ SGMII_REMOTE_FAULT_DIS | SGMII_SPEED_DUPLEX_AN |
+ SGMII_IF_MODE_SGMII, sgm_mode);
+
+ /* Update the BMCR */
+ regmap_update_bits(mpcs->regmap, SGMSYS_PCS_CONTROL_1,
+ BMCR_ANENABLE, bmcr);
+
+ /* Release PHYA power down state
+ * Only removing bit SGMII_PHYA_PWD isn't enough.
+ * There are cases when the SGMII_PHYA_PWD register contains 0x9 which
+ * prevents SGMII from working. The SGMII still shows link but no traffic
+ * can flow. Writing 0x0 to the PHYA_PWD register fix the issue. 0x0 was
+ * taken from a good working state of the SGMII interface.
+ * Unknown how much the QPHY needs but it is racy without a sleep.
+ * Tested on mt7622 & mt7986.
+ */
+ usleep_range(50, 100);
+ regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, 0);
+
+ return changed || mode_changed;
+}
+
+static void mtk_pcs_lynxi_restart_an(struct phylink_pcs *pcs)
+{
+ struct mtk_pcs_lynxi *mpcs = pcs_to_mtk_pcs_lynxi(pcs);
+
+ regmap_update_bits(mpcs->regmap, SGMSYS_PCS_CONTROL_1,
+ BMCR_ANRESTART, BMCR_ANRESTART);
+}
+
+static void mtk_pcs_lynxi_link_up(struct phylink_pcs *pcs, unsigned int mode,
+ phy_interface_t interface, int speed, int duplex)
+{
+ struct mtk_pcs_lynxi *mpcs = pcs_to_mtk_pcs_lynxi(pcs);
+ unsigned int sgm_mode;
+
+ if (!phylink_autoneg_inband(mode)) {
+ /* Force the speed and duplex setting */
+ if (speed == SPEED_10)
+ sgm_mode = SGMII_SPEED_10;
+ else if (speed == SPEED_100)
+ sgm_mode = SGMII_SPEED_100;
+ else
+ sgm_mode = SGMII_SPEED_1000;
+
+ if (duplex != DUPLEX_FULL)
+ sgm_mode |= SGMII_DUPLEX_HALF;
+
+ regmap_update_bits(mpcs->regmap, SGMSYS_SGMII_MODE,
+ SGMII_DUPLEX_HALF | SGMII_SPEED_MASK,
+ sgm_mode);
+ }
+}
+
+static const struct phylink_pcs_ops mtk_pcs_lynxi_ops = {
+ .pcs_get_state = mtk_pcs_lynxi_get_state,
+ .pcs_config = mtk_pcs_lynxi_config,
+ .pcs_an_restart = mtk_pcs_lynxi_restart_an,
+ .pcs_link_up = mtk_pcs_lynxi_link_up,
+};
+
+struct phylink_pcs *mtk_pcs_lynxi_create(struct device *dev, struct regmap *regmap,
+ u32 ana_rgc3, u32 flags)
+{
+ struct mtk_pcs_lynxi *mpcs;
+ u32 id, ver;
+ int ret;
+
+ ret = regmap_read(regmap, SGMSYS_PCS_DEVICE_ID, &id);
+ if (ret < 0)
+ return NULL;
+
+ if (id != SGMII_LYNXI_DEV_ID) {
+ dev_err(dev, "unknown PCS device id %08x\n", id);
+ return NULL;
+ }
+
+ ret = regmap_read(regmap, SGMSYS_PCS_SCRATCH, &ver);
+ if (ret < 0)
+ return NULL;
+
+ ver = FIELD_GET(SGMII_DEV_VERSION, ver);
+ if (ver != 0x1) {
+ dev_err(dev, "unknown PCS device version %04x\n", ver);
+ return NULL;
+ }
+
+ dev_dbg(dev, "MediaTek LynxI SGMII PCS (id 0x%08x, ver 0x%04x)\n", id,
+ ver);
+
+ mpcs = kzalloc(sizeof(*mpcs), GFP_KERNEL);
+ if (!mpcs)
+ return NULL;
+
+ mpcs->ana_rgc3 = ana_rgc3;
+ mpcs->regmap = regmap;
+ mpcs->flags = flags;
+ mpcs->pcs.ops = &mtk_pcs_lynxi_ops;
+ mpcs->pcs.poll = true;
+ mpcs->interface = PHY_INTERFACE_MODE_NA;
+
+ return &mpcs->pcs;
+}
+EXPORT_SYMBOL(mtk_pcs_lynxi_create);
+
+void mtk_pcs_lynxi_destroy(struct phylink_pcs *pcs)
+{
+ if (!pcs)
+ return;
+
+ kfree(pcs_to_mtk_pcs_lynxi(pcs));
+}
+EXPORT_SYMBOL(mtk_pcs_lynxi_destroy);
+
+MODULE_LICENSE("GPL");
diff --git a/include/linux/pcs/pcs-mtk-lynxi.h b/include/linux/pcs/pcs-mtk-lynxi.h
new file mode 100644
index 000000000000..be3b4ab32f4a
--- /dev/null
+++ b/include/linux/pcs/pcs-mtk-lynxi.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_PCS_MTK_LYNXI_H
+#define __LINUX_PCS_MTK_LYNXI_H
+
+#include <linux/phylink.h>
+#include <linux/regmap.h>
+
+#define MTK_SGMII_FLAG_PN_SWAP BIT(0)
+struct phylink_pcs *mtk_pcs_lynxi_create(struct device *dev,
+ struct regmap *regmap,
+ u32 ana_rgc3, u32 flags);
+void mtk_pcs_lynxi_destroy(struct phylink_pcs *pcs);
+#endif
--
2.39.1
Now that we got a PCS driver, use it and remove the now redundant
PCS code and it's header macros from the Ethernet driver.
Tested-by: Bj?rn Mork <[email protected]>
Signed-off-by: Daniel Golle <[email protected]>
---
drivers/net/ethernet/mediatek/Kconfig | 2 +
drivers/net/ethernet/mediatek/mtk_eth_soc.c | 13 +-
drivers/net/ethernet/mediatek/mtk_eth_soc.h | 80 +-------
drivers/net/ethernet/mediatek/mtk_sgmii.c | 200 +++-----------------
4 files changed, 37 insertions(+), 258 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/Kconfig b/drivers/net/ethernet/mediatek/Kconfig
index 97374fb3ee79..da0db417ab69 100644
--- a/drivers/net/ethernet/mediatek/Kconfig
+++ b/drivers/net/ethernet/mediatek/Kconfig
@@ -19,6 +19,8 @@ config NET_MEDIATEK_SOC
select DIMLIB
select PAGE_POOL
select PAGE_POOL_STATS
+ select PCS_MTK_LYNXI
+ select REGMAP_MMIO
help
This driver supports the gigabit ethernet MACs in the
MediaTek SoC family.
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
index 2c4414449af6..556cd4e5cb7f 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
@@ -4079,6 +4079,7 @@ static int mtk_unreg_dev(struct mtk_eth *eth)
static int mtk_cleanup(struct mtk_eth *eth)
{
+ mtk_sgmii_destroy(eth->sgmii);
mtk_unreg_dev(eth);
mtk_free_dev(eth);
cancel_work_sync(ð->pending_work);
@@ -4582,6 +4583,7 @@ static int mtk_probe(struct platform_device *pdev)
if (!eth->sgmii)
return -ENOMEM;
+ eth->sgmii->dev = eth->dev;
err = mtk_sgmii_init(eth->sgmii, pdev->dev.of_node,
eth->soc->ana_rgc3);
@@ -4594,14 +4596,17 @@ static int mtk_probe(struct platform_device *pdev)
"mediatek,pctl");
if (IS_ERR(eth->pctl)) {
dev_err(&pdev->dev, "no pctl regmap found\n");
- return PTR_ERR(eth->pctl);
+ err = PTR_ERR(eth->pctl);
+ goto err_destroy_sgmii;
}
}
if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) {
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -EINVAL;
+ if (!res) {
+ err = -EINVAL;
+ goto err_destroy_sgmii;
+ }
}
if (eth->soc->offload_version) {
@@ -4751,6 +4756,8 @@ static int mtk_probe(struct platform_device *pdev)
return 0;
+err_destroy_sgmii:
+ mtk_sgmii_destroy(eth->sgmii);
err_deinit_ppe:
mtk_ppe_deinit(eth);
mtk_mdio_cleanup(eth);
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
index c2e0fd773cc2..a72748d80bba 100644
--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h
+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h
@@ -510,65 +510,6 @@
#define ETHSYS_DMA_AG_MAP_QDMA BIT(1)
#define ETHSYS_DMA_AG_MAP_PPE BIT(2)
-/* SGMII subsystem config registers */
-/* BMCR (low 16) BMSR (high 16) */
-#define SGMSYS_PCS_CONTROL_1 0x0
-#define SGMII_BMCR GENMASK(15, 0)
-#define SGMII_BMSR GENMASK(31, 16)
-#define SGMII_AN_RESTART BIT(9)
-#define SGMII_ISOLATE BIT(10)
-#define SGMII_AN_ENABLE BIT(12)
-#define SGMII_LINK_STATYS BIT(18)
-#define SGMII_AN_ABILITY BIT(19)
-#define SGMII_AN_COMPLETE BIT(21)
-#define SGMII_PCS_FAULT BIT(23)
-#define SGMII_AN_EXPANSION_CLR BIT(30)
-
-#define SGMSYS_PCS_ADVERTISE 0x8
-#define SGMII_ADVERTISE GENMASK(15, 0)
-#define SGMII_LPA GENMASK(31, 16)
-
-/* Register to programmable link timer, the unit in 2 * 8ns */
-#define SGMSYS_PCS_LINK_TIMER 0x18
-#define SGMII_LINK_TIMER_MASK GENMASK(19, 0)
-#define SGMII_LINK_TIMER_DEFAULT (0x186a0 & SGMII_LINK_TIMER_MASK)
-
-/* Register to control remote fault */
-#define SGMSYS_SGMII_MODE 0x20
-#define SGMII_IF_MODE_SGMII BIT(0)
-#define SGMII_SPEED_DUPLEX_AN BIT(1)
-#define SGMII_SPEED_MASK GENMASK(3, 2)
-#define SGMII_SPEED_10 FIELD_PREP(SGMII_SPEED_MASK, 0)
-#define SGMII_SPEED_100 FIELD_PREP(SGMII_SPEED_MASK, 1)
-#define SGMII_SPEED_1000 FIELD_PREP(SGMII_SPEED_MASK, 2)
-#define SGMII_DUPLEX_HALF BIT(4)
-#define SGMII_IF_MODE_BIT5 BIT(5)
-#define SGMII_REMOTE_FAULT_DIS BIT(8)
-#define SGMII_CODE_SYNC_SET_VAL BIT(9)
-#define SGMII_CODE_SYNC_SET_EN BIT(10)
-#define SGMII_SEND_AN_ERROR_EN BIT(11)
-#define SGMII_IF_MODE_MASK GENMASK(5, 1)
-
-/* Register to reset SGMII design */
-#define SGMII_RESERVED_0 0x34
-#define SGMII_SW_RESET BIT(0)
-
-/* Register to set SGMII speed, ANA RG_ Control Signals III*/
-#define SGMSYS_ANA_RG_CS3 0x2028
-#define RG_PHY_SPEED_MASK (BIT(2) | BIT(3))
-#define RG_PHY_SPEED_1_25G 0x0
-#define RG_PHY_SPEED_3_125G BIT(2)
-
-/* Register to power up QPHY */
-#define SGMSYS_QPHY_PWR_STATE_CTRL 0xe8
-#define SGMII_PHYA_PWD BIT(4)
-
-/* Register to QPHY wrapper control */
-#define SGMSYS_QPHY_WRAP_CTRL 0xec
-#define SGMII_PN_SWAP_MASK GENMASK(1, 0)
-#define SGMII_PN_SWAP_TX_RX (BIT(0) | BIT(1))
-#define MTK_SGMII_FLAG_PN_SWAP BIT(0)
-
/* Infrasys subsystem config registers */
#define INFRA_MISC2 0x70c
#define CO_QPHY_SEL BIT(0)
@@ -1103,29 +1044,13 @@ struct mtk_soc_data {
/* currently no SoC has more than 2 macs */
#define MTK_MAX_DEVS 2
-/* struct mtk_pcs - This structure holds each sgmii regmap and associated
- * data
- * @regmap: The register map pointing at the range used to setup
- * SGMII modes
- * @ana_rgc3: The offset refers to register ANA_RGC3 related to regmap
- * @interface: Currently configured interface mode
- * @pcs: Phylink PCS structure
- * @flags: Flags indicating hardware properties
- */
-struct mtk_pcs {
- struct regmap *regmap;
- u32 ana_rgc3;
- phy_interface_t interface;
- struct phylink_pcs pcs;
- u32 flags;
-};
-
/* struct mtk_sgmii - This is the structure holding sgmii regmap and its
* characteristics
* @pcs Array of individual PCS structures
*/
struct mtk_sgmii {
- struct mtk_pcs pcs[MTK_MAX_DEVS];
+ struct phylink_pcs *pcs[MTK_MAX_DEVS];
+ struct device *dev;
};
/* struct mtk_eth - This is the main datasructure for holding the state
@@ -1353,6 +1278,7 @@ u32 mtk_r32(struct mtk_eth *eth, unsigned reg);
struct phylink_pcs *mtk_sgmii_select_pcs(struct mtk_sgmii *ss, int id);
int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *np,
u32 ana_rgc3);
+void mtk_sgmii_destroy(struct mtk_sgmii *ss);
int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id);
int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id);
diff --git a/drivers/net/ethernet/mediatek/mtk_sgmii.c b/drivers/net/ethernet/mediatek/mtk_sgmii.c
index 61bd9986466a..1137458cba41 100644
--- a/drivers/net/ethernet/mediatek/mtk_sgmii.c
+++ b/drivers/net/ethernet/mediatek/mtk_sgmii.c
@@ -10,178 +10,16 @@
#include <linux/mfd/syscon.h>
#include <linux/of.h>
#include <linux/phylink.h>
+#include <linux/pcs/pcs-mtk-lynxi.h>
#include <linux/regmap.h>
#include "mtk_eth_soc.h"
-static struct mtk_pcs *pcs_to_mtk_pcs(struct phylink_pcs *pcs)
-{
- return container_of(pcs, struct mtk_pcs, pcs);
-}
-
-static void mtk_pcs_get_state(struct phylink_pcs *pcs,
- struct phylink_link_state *state)
-{
- struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs);
- unsigned int bm, adv;
-
- /* Read the BMSR and LPA */
- regmap_read(mpcs->regmap, SGMSYS_PCS_CONTROL_1, &bm);
- regmap_read(mpcs->regmap, SGMSYS_PCS_ADVERTISE, &adv);
-
- phylink_mii_c22_pcs_decode_state(state, FIELD_GET(SGMII_BMSR, bm),
- FIELD_GET(SGMII_LPA, adv));
-}
-
-static int mtk_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
- phy_interface_t interface,
- const unsigned long *advertising,
- bool permit_pause_to_mac)
-{
- bool mode_changed = false, changed, use_an;
- struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs);
- unsigned int rgc3, sgm_mode, bmcr;
- int advertise, link_timer;
-
- advertise = phylink_mii_c22_pcs_encode_advertisement(interface,
- advertising);
- if (advertise < 0)
- return advertise;
-
- /* Clearing IF_MODE_BIT0 switches the PCS to BASE-X mode, and
- * we assume that fixes it's speed at bitrate = line rate (in
- * other words, 1000Mbps or 2500Mbps).
- */
- if (interface == PHY_INTERFACE_MODE_SGMII) {
- sgm_mode = SGMII_IF_MODE_SGMII;
- if (phylink_autoneg_inband(mode)) {
- sgm_mode |= SGMII_REMOTE_FAULT_DIS |
- SGMII_SPEED_DUPLEX_AN;
- use_an = true;
- } else {
- use_an = false;
- }
- } else if (phylink_autoneg_inband(mode)) {
- /* 1000base-X or 2500base-X autoneg */
- sgm_mode = SGMII_REMOTE_FAULT_DIS;
- use_an = linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
- advertising);
- } else {
- /* 1000base-X or 2500base-X without autoneg */
- sgm_mode = 0;
- use_an = false;
- }
-
- if (use_an) {
- bmcr = SGMII_AN_ENABLE;
- } else {
- bmcr = 0;
- }
-
- if (mpcs->interface != interface) {
- link_timer = phylink_get_link_timer_ns(interface);
- if (link_timer < 0)
- return link_timer;
-
- /* PHYA power down */
- regmap_update_bits(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL,
- SGMII_PHYA_PWD, SGMII_PHYA_PWD);
-
- /* Reset SGMII PCS state */
- regmap_update_bits(mpcs->regmap, SGMII_RESERVED_0,
- SGMII_SW_RESET, SGMII_SW_RESET);
-
- if (mpcs->flags & MTK_SGMII_FLAG_PN_SWAP)
- regmap_update_bits(mpcs->regmap, SGMSYS_QPHY_WRAP_CTRL,
- SGMII_PN_SWAP_MASK,
- SGMII_PN_SWAP_TX_RX);
-
- if (interface == PHY_INTERFACE_MODE_2500BASEX)
- rgc3 = RG_PHY_SPEED_3_125G;
- else
- rgc3 = 0;
-
- /* Configure the underlying interface speed */
- regmap_update_bits(mpcs->regmap, mpcs->ana_rgc3,
- RG_PHY_SPEED_3_125G, rgc3);
-
- /* Setup the link timer */
- regmap_write(mpcs->regmap, SGMSYS_PCS_LINK_TIMER, link_timer / 2 / 8);
-
- mpcs->interface = interface;
- mode_changed = true;
- }
-
- /* Update the advertisement, noting whether it has changed */
- regmap_update_bits_check(mpcs->regmap, SGMSYS_PCS_ADVERTISE,
- SGMII_ADVERTISE, advertise, &changed);
-
- /* Update the sgmsys mode register */
- regmap_update_bits(mpcs->regmap, SGMSYS_SGMII_MODE,
- SGMII_REMOTE_FAULT_DIS | SGMII_SPEED_DUPLEX_AN |
- SGMII_IF_MODE_SGMII, sgm_mode);
-
- /* Update the BMCR */
- regmap_update_bits(mpcs->regmap, SGMSYS_PCS_CONTROL_1,
- SGMII_AN_ENABLE, bmcr);
-
- /* Release PHYA power down state
- * Only removing bit SGMII_PHYA_PWD isn't enough.
- * There are cases when the SGMII_PHYA_PWD register contains 0x9 which
- * prevents SGMII from working. The SGMII still shows link but no traffic
- * can flow. Writing 0x0 to the PHYA_PWD register fix the issue. 0x0 was
- * taken from a good working state of the SGMII interface.
- * Unknown how much the QPHY needs but it is racy without a sleep.
- * Tested on mt7622 & mt7986.
- */
- usleep_range(50, 100);
- regmap_write(mpcs->regmap, SGMSYS_QPHY_PWR_STATE_CTRL, 0);
-
- return changed || mode_changed;
-}
-
-static void mtk_pcs_restart_an(struct phylink_pcs *pcs)
-{
- struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs);
-
- regmap_update_bits(mpcs->regmap, SGMSYS_PCS_CONTROL_1,
- SGMII_AN_RESTART, SGMII_AN_RESTART);
-}
-
-static void mtk_pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
- phy_interface_t interface, int speed, int duplex)
-{
- struct mtk_pcs *mpcs = pcs_to_mtk_pcs(pcs);
- unsigned int sgm_mode;
-
- if (!phylink_autoneg_inband(mode)) {
- /* Force the speed and duplex setting */
- if (speed == SPEED_10)
- sgm_mode = SGMII_SPEED_10;
- else if (speed == SPEED_100)
- sgm_mode = SGMII_SPEED_100;
- else
- sgm_mode = SGMII_SPEED_1000;
-
- if (duplex != DUPLEX_FULL)
- sgm_mode |= SGMII_DUPLEX_HALF;
-
- regmap_update_bits(mpcs->regmap, SGMSYS_SGMII_MODE,
- SGMII_DUPLEX_HALF | SGMII_SPEED_MASK,
- sgm_mode);
- }
-}
-
-static const struct phylink_pcs_ops mtk_pcs_ops = {
- .pcs_get_state = mtk_pcs_get_state,
- .pcs_config = mtk_pcs_config,
- .pcs_an_restart = mtk_pcs_restart_an,
- .pcs_link_up = mtk_pcs_link_up,
-};
-
int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3)
{
struct device_node *np;
+ struct regmap *regmap;
+ u32 flags;
int i;
for (i = 0; i < MTK_MAX_DEVS; i++) {
@@ -189,20 +27,18 @@ int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3)
if (!np)
break;
- ss->pcs[i].ana_rgc3 = ana_rgc3;
- ss->pcs[i].regmap = syscon_node_to_regmap(np);
-
- ss->pcs[i].flags = 0;
+ regmap = syscon_node_to_regmap(np);
+ flags = 0;
if (of_property_read_bool(np, "mediatek,pnswap"))
- ss->pcs[i].flags |= MTK_SGMII_FLAG_PN_SWAP;
+ flags |= MTK_SGMII_FLAG_PN_SWAP;
of_node_put(np);
- if (IS_ERR(ss->pcs[i].regmap))
- return PTR_ERR(ss->pcs[i].regmap);
- ss->pcs[i].pcs.ops = &mtk_pcs_ops;
- ss->pcs[i].pcs.poll = true;
- ss->pcs[i].interface = PHY_INTERFACE_MODE_NA;
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ ss->pcs[i] = mtk_pcs_lynxi_create(ss->dev, regmap, ana_rgc3,
+ flags);
}
return 0;
@@ -210,8 +46,16 @@ int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3)
struct phylink_pcs *mtk_sgmii_select_pcs(struct mtk_sgmii *ss, int id)
{
- if (!ss->pcs[id].regmap)
- return NULL;
+ return ss->pcs[id];
+}
+
+void mtk_sgmii_destroy(struct mtk_sgmii *ss)
+{
+ int i;
+
+ if (!ss)
+ return;
- return &ss->pcs[id].pcs;
+ for (i = 0; i < MTK_MAX_DEVS; i++)
+ mtk_pcs_lynxi_destroy(ss->pcs[i]);
}
--
2.39.1
Implement regmap access wrappers, for now only to be used by the
pcs-mtk driver.
Make use of external PCS driver and drop the reduntant implementation
in mt7530.c.
As a nice side effect the SGMII registers can now also more easily be
inspected for debugging via /sys/kernel/debug/regmap.
Reviewed-by: Russell King (Oracle) <[email protected]>
Tested-by: Bj?rn Mork <[email protected]>
Signed-off-by: Daniel Golle <[email protected]>
---
drivers/net/dsa/Kconfig | 1 +
drivers/net/dsa/mt7530.c | 277 ++++++++++-----------------------------
drivers/net/dsa/mt7530.h | 47 +------
3 files changed, 71 insertions(+), 254 deletions(-)
diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
index f6f3b43dfb06..6b45fa8b6907 100644
--- a/drivers/net/dsa/Kconfig
+++ b/drivers/net/dsa/Kconfig
@@ -38,6 +38,7 @@ config NET_DSA_MT7530
tristate "MediaTek MT7530 and MT7531 Ethernet switch support"
select NET_DSA_TAG_MTK
select MEDIATEK_GE_PHY
+ select PCS_MTK_LYNXI
help
This enables support for the MediaTek MT7530 and MT7531 Ethernet
switch chips. Multi-chip module MT7530 in MT7621AT, MT7621DAT,
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 3a15015bc409..582ba30374c8 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -14,6 +14,7 @@
#include <linux/of_mdio.h>
#include <linux/of_net.h>
#include <linux/of_platform.h>
+#include <linux/pcs/pcs-mtk-lynxi.h>
#include <linux/phylink.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
@@ -2567,128 +2568,11 @@ static int mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port,
return 0;
}
-static void mt7531_pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,
- phy_interface_t interface, int speed, int duplex)
-{
- struct mt7530_priv *priv = pcs_to_mt753x_pcs(pcs)->priv;
- int port = pcs_to_mt753x_pcs(pcs)->port;
- unsigned int val;
-
- /* For adjusting speed and duplex of SGMII force mode. */
- if (interface != PHY_INTERFACE_MODE_SGMII ||
- phylink_autoneg_inband(mode))
- return;
-
- /* SGMII force mode setting */
- val = mt7530_read(priv, MT7531_SGMII_MODE(port));
- val &= ~MT7531_SGMII_IF_MODE_MASK;
-
- switch (speed) {
- case SPEED_10:
- val |= MT7531_SGMII_FORCE_SPEED_10;
- break;
- case SPEED_100:
- val |= MT7531_SGMII_FORCE_SPEED_100;
- break;
- case SPEED_1000:
- val |= MT7531_SGMII_FORCE_SPEED_1000;
- break;
- }
-
- /* MT7531 SGMII 1G force mode can only work in full duplex mode,
- * no matter MT7531_SGMII_FORCE_HALF_DUPLEX is set or not.
- *
- * The speed check is unnecessary as the MAC capabilities apply
- * this restriction. --rmk
- */
- if ((speed == SPEED_10 || speed == SPEED_100) &&
- duplex != DUPLEX_FULL)
- val |= MT7531_SGMII_FORCE_HALF_DUPLEX;
-
- mt7530_write(priv, MT7531_SGMII_MODE(port), val);
-}
-
static bool mt753x_is_mac_port(u32 port)
{
return (port == 5 || port == 6);
}
-static int mt7531_sgmii_setup_mode_force(struct mt7530_priv *priv, u32 port,
- phy_interface_t interface)
-{
- u32 val;
-
- if (!mt753x_is_mac_port(port))
- return -EINVAL;
-
- mt7530_set(priv, MT7531_QPHY_PWR_STATE_CTRL(port),
- MT7531_SGMII_PHYA_PWD);
-
- val = mt7530_read(priv, MT7531_PHYA_CTRL_SIGNAL3(port));
- val &= ~MT7531_RG_TPHY_SPEED_MASK;
- /* Setup 2.5 times faster clock for 2.5Gbps data speeds with 10B/8B
- * encoding.
- */
- val |= (interface == PHY_INTERFACE_MODE_2500BASEX) ?
- MT7531_RG_TPHY_SPEED_3_125G : MT7531_RG_TPHY_SPEED_1_25G;
- mt7530_write(priv, MT7531_PHYA_CTRL_SIGNAL3(port), val);
-
- mt7530_clear(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_ENABLE);
-
- /* MT7531 SGMII 1G and 2.5G force mode can only work in full duplex
- * mode, no matter MT7531_SGMII_FORCE_HALF_DUPLEX is set or not.
- */
- mt7530_rmw(priv, MT7531_SGMII_MODE(port),
- MT7531_SGMII_IF_MODE_MASK | MT7531_SGMII_REMOTE_FAULT_DIS,
- MT7531_SGMII_FORCE_SPEED_1000);
-
- mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), 0);
-
- return 0;
-}
-
-static int mt7531_sgmii_setup_mode_an(struct mt7530_priv *priv, int port,
- phy_interface_t interface)
-{
- if (!mt753x_is_mac_port(port))
- return -EINVAL;
-
- mt7530_set(priv, MT7531_QPHY_PWR_STATE_CTRL(port),
- MT7531_SGMII_PHYA_PWD);
-
- mt7530_rmw(priv, MT7531_PHYA_CTRL_SIGNAL3(port),
- MT7531_RG_TPHY_SPEED_MASK, MT7531_RG_TPHY_SPEED_1_25G);
-
- mt7530_set(priv, MT7531_SGMII_MODE(port),
- MT7531_SGMII_REMOTE_FAULT_DIS |
- MT7531_SGMII_SPEED_DUPLEX_AN);
-
- mt7530_rmw(priv, MT7531_PCS_SPEED_ABILITY(port),
- MT7531_SGMII_TX_CONFIG_MASK, 1);
-
- mt7530_set(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_ENABLE);
-
- mt7530_set(priv, MT7531_PCS_CONTROL_1(port), MT7531_SGMII_AN_RESTART);
-
- mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), 0);
-
- return 0;
-}
-
-static void mt7531_pcs_an_restart(struct phylink_pcs *pcs)
-{
- struct mt7530_priv *priv = pcs_to_mt753x_pcs(pcs)->priv;
- int port = pcs_to_mt753x_pcs(pcs)->port;
- u32 val;
-
- /* Only restart AN when AN is enabled */
- val = mt7530_read(priv, MT7531_PCS_CONTROL_1(port));
- if (val & MT7531_SGMII_AN_ENABLE) {
- val |= MT7531_SGMII_AN_RESTART;
- mt7530_write(priv, MT7531_PCS_CONTROL_1(port), val);
- }
-}
-
static int
mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
phy_interface_t interface)
@@ -2711,11 +2595,11 @@ mt7531_mac_config(struct dsa_switch *ds, int port, unsigned int mode,
phydev = dp->slave->phydev;
return mt7531_rgmii_setup(priv, port, interface, phydev);
case PHY_INTERFACE_MODE_SGMII:
- return mt7531_sgmii_setup_mode_an(priv, port, interface);
case PHY_INTERFACE_MODE_NA:
case PHY_INTERFACE_MODE_1000BASEX:
case PHY_INTERFACE_MODE_2500BASEX:
- return mt7531_sgmii_setup_mode_force(priv, port, interface);
+ /* handled in SGMII PCS driver */
+ return 0;
default:
return -EINVAL;
}
@@ -2740,11 +2624,11 @@ mt753x_phylink_mac_select_pcs(struct dsa_switch *ds, int port,
switch (interface) {
case PHY_INTERFACE_MODE_TRGMII:
+ return &priv->pcs[port].pcs;
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_1000BASEX:
case PHY_INTERFACE_MODE_2500BASEX:
- return &priv->pcs[port].pcs;
-
+ return priv->ports[port].sgmii_pcs;
default:
return NULL;
}
@@ -2982,86 +2866,6 @@ static void mt7530_pcs_get_state(struct phylink_pcs *pcs,
state->pause |= MLO_PAUSE_TX;
}
-static int
-mt7531_sgmii_pcs_get_state_an(struct mt7530_priv *priv, int port,
- struct phylink_link_state *state)
-{
- u32 status, val;
- u16 config_reg;
-
- status = mt7530_read(priv, MT7531_PCS_CONTROL_1(port));
- state->link = !!(status & MT7531_SGMII_LINK_STATUS);
- state->an_complete = !!(status & MT7531_SGMII_AN_COMPLETE);
- if (state->interface == PHY_INTERFACE_MODE_SGMII &&
- (status & MT7531_SGMII_AN_ENABLE)) {
- val = mt7530_read(priv, MT7531_PCS_SPEED_ABILITY(port));
- config_reg = val >> 16;
-
- switch (config_reg & LPA_SGMII_SPD_MASK) {
- case LPA_SGMII_1000:
- state->speed = SPEED_1000;
- break;
- case LPA_SGMII_100:
- state->speed = SPEED_100;
- break;
- case LPA_SGMII_10:
- state->speed = SPEED_10;
- break;
- default:
- dev_err(priv->dev, "invalid sgmii PHY speed\n");
- state->link = false;
- return -EINVAL;
- }
-
- if (config_reg & LPA_SGMII_FULL_DUPLEX)
- state->duplex = DUPLEX_FULL;
- else
- state->duplex = DUPLEX_HALF;
- }
-
- return 0;
-}
-
-static void
-mt7531_sgmii_pcs_get_state_inband(struct mt7530_priv *priv, int port,
- struct phylink_link_state *state)
-{
- unsigned int val;
-
- val = mt7530_read(priv, MT7531_PCS_CONTROL_1(port));
- state->link = !!(val & MT7531_SGMII_LINK_STATUS);
- if (!state->link)
- return;
-
- state->an_complete = state->link;
-
- if (state->interface == PHY_INTERFACE_MODE_2500BASEX)
- state->speed = SPEED_2500;
- else
- state->speed = SPEED_1000;
-
- state->duplex = DUPLEX_FULL;
- state->pause = MLO_PAUSE_NONE;
-}
-
-static void mt7531_pcs_get_state(struct phylink_pcs *pcs,
- struct phylink_link_state *state)
-{
- struct mt7530_priv *priv = pcs_to_mt753x_pcs(pcs)->priv;
- int port = pcs_to_mt753x_pcs(pcs)->port;
-
- if (state->interface == PHY_INTERFACE_MODE_SGMII) {
- mt7531_sgmii_pcs_get_state_an(priv, port, state);
- return;
- } else if ((state->interface == PHY_INTERFACE_MODE_1000BASEX) ||
- (state->interface == PHY_INTERFACE_MODE_2500BASEX)) {
- mt7531_sgmii_pcs_get_state_inband(priv, port, state);
- return;
- }
-
- state->link = false;
-}
-
static int mt753x_pcs_config(struct phylink_pcs *pcs, unsigned int mode,
phy_interface_t interface,
const unsigned long *advertising,
@@ -3081,18 +2885,57 @@ static const struct phylink_pcs_ops mt7530_pcs_ops = {
.pcs_an_restart = mt7530_pcs_an_restart,
};
-static const struct phylink_pcs_ops mt7531_pcs_ops = {
- .pcs_validate = mt753x_pcs_validate,
- .pcs_get_state = mt7531_pcs_get_state,
- .pcs_config = mt753x_pcs_config,
- .pcs_an_restart = mt7531_pcs_an_restart,
- .pcs_link_up = mt7531_pcs_link_up,
+static int mt7530_regmap_read(void *context, unsigned int reg, unsigned int *val)
+{
+ struct mt7530_priv *priv = context;
+
+ *val = mt7530_read(priv, reg);
+ return 0;
+};
+
+static int mt7530_regmap_write(void *context, unsigned int reg, unsigned int val)
+{
+ struct mt7530_priv *priv = context;
+
+ mt7530_write(priv, reg, val);
+ return 0;
+};
+
+static int mt7530_regmap_update_bits(void *context, unsigned int reg,
+ unsigned int mask, unsigned int val)
+{
+ struct mt7530_priv *priv = context;
+
+ mt7530_rmw(priv, reg, mask, val);
+ return 0;
+};
+
+static const struct regmap_bus mt7531_regmap_bus = {
+ .reg_write = mt7530_regmap_write,
+ .reg_read = mt7530_regmap_read,
+ .reg_update_bits = mt7530_regmap_update_bits,
+};
+
+#define MT7531_PCS_REGMAP_CONFIG(_name, _reg_base) \
+ { \
+ .name = _name, \
+ .reg_bits = 16, \
+ .val_bits = 32, \
+ .reg_stride = 4, \
+ .reg_base = _reg_base, \
+ .max_register = 0x17c, \
+ }
+
+static const struct regmap_config mt7531_pcs_config[] = {
+ MT7531_PCS_REGMAP_CONFIG("port5", MT7531_SGMII_REG_BASE(5)),
+ MT7531_PCS_REGMAP_CONFIG("port6", MT7531_SGMII_REG_BASE(6)),
};
static int
mt753x_setup(struct dsa_switch *ds)
{
struct mt7530_priv *priv = ds->priv;
+ struct regmap *regmap;
int i, ret;
/* Initialise the PCS devices */
@@ -3100,8 +2943,6 @@ mt753x_setup(struct dsa_switch *ds)
priv->pcs[i].pcs.ops = priv->info->pcs_ops;
priv->pcs[i].priv = priv;
priv->pcs[i].port = i;
- if (mt753x_is_mac_port(i))
- priv->pcs[i].pcs.poll = 1;
}
ret = priv->info->sw_setup(ds);
@@ -3116,6 +2957,16 @@ mt753x_setup(struct dsa_switch *ds)
if (ret && priv->irq)
mt7530_free_irq_common(priv);
+ if (priv->id == ID_MT7531)
+ for (i = 0; i < 2; i++) {
+ regmap = devm_regmap_init(ds->dev,
+ &mt7531_regmap_bus, priv,
+ &mt7531_pcs_config[i]);
+ priv->ports[5 + i].sgmii_pcs =
+ mtk_pcs_lynxi_create(ds->dev, regmap,
+ MT7531_PHYA_CTRL_SIGNAL3, 0);
+ }
+
return ret;
}
@@ -3211,7 +3062,7 @@ static const struct mt753x_info mt753x_table[] = {
},
[ID_MT7531] = {
.id = ID_MT7531,
- .pcs_ops = &mt7531_pcs_ops,
+ .pcs_ops = &mt7530_pcs_ops,
.sw_setup = mt7531_setup,
.phy_read_c22 = mt7531_ind_c22_phy_read,
.phy_write_c22 = mt7531_ind_c22_phy_write,
@@ -3321,7 +3172,7 @@ static void
mt7530_remove(struct mdio_device *mdiodev)
{
struct mt7530_priv *priv = dev_get_drvdata(&mdiodev->dev);
- int ret = 0;
+ int ret = 0, i;
if (!priv)
return;
@@ -3340,6 +3191,10 @@ mt7530_remove(struct mdio_device *mdiodev)
mt7530_free_irq(priv);
dsa_unregister_switch(priv->ds);
+
+ for (i = 0; i < 2; ++i)
+ mtk_pcs_lynxi_destroy(priv->ports[5 + i].sgmii_pcs);
+
mutex_destroy(&priv->reg_mutex);
}
diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h
index 6b2fc6290ea8..c5d29f3fc1d8 100644
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -364,47 +364,8 @@ enum mt7530_vlan_port_acc_frm {
CCR_TX_OCT_CNT_BAD)
/* MT7531 SGMII register group */
-#define MT7531_SGMII_REG_BASE 0x5000
-#define MT7531_SGMII_REG(p, r) (MT7531_SGMII_REG_BASE + \
- ((p) - 5) * 0x1000 + (r))
-
-/* Register forSGMII PCS_CONTROL_1 */
-#define MT7531_PCS_CONTROL_1(p) MT7531_SGMII_REG(p, 0x00)
-#define MT7531_SGMII_LINK_STATUS BIT(18)
-#define MT7531_SGMII_AN_ENABLE BIT(12)
-#define MT7531_SGMII_AN_RESTART BIT(9)
-#define MT7531_SGMII_AN_COMPLETE BIT(21)
-
-/* Register for SGMII PCS_SPPED_ABILITY */
-#define MT7531_PCS_SPEED_ABILITY(p) MT7531_SGMII_REG(p, 0x08)
-#define MT7531_SGMII_TX_CONFIG_MASK GENMASK(15, 0)
-#define MT7531_SGMII_TX_CONFIG BIT(0)
-
-/* Register for SGMII_MODE */
-#define MT7531_SGMII_MODE(p) MT7531_SGMII_REG(p, 0x20)
-#define MT7531_SGMII_REMOTE_FAULT_DIS BIT(8)
-#define MT7531_SGMII_IF_MODE_MASK GENMASK(5, 1)
-#define MT7531_SGMII_FORCE_DUPLEX BIT(4)
-#define MT7531_SGMII_FORCE_SPEED_MASK GENMASK(3, 2)
-#define MT7531_SGMII_FORCE_SPEED_1000 BIT(3)
-#define MT7531_SGMII_FORCE_SPEED_100 BIT(2)
-#define MT7531_SGMII_FORCE_SPEED_10 0
-#define MT7531_SGMII_SPEED_DUPLEX_AN BIT(1)
-
-enum mt7531_sgmii_force_duplex {
- MT7531_SGMII_FORCE_FULL_DUPLEX = 0,
- MT7531_SGMII_FORCE_HALF_DUPLEX = 0x10,
-};
-
-/* Fields of QPHY_PWR_STATE_CTRL */
-#define MT7531_QPHY_PWR_STATE_CTRL(p) MT7531_SGMII_REG(p, 0xe8)
-#define MT7531_SGMII_PHYA_PWD BIT(4)
-
-/* Values of SGMII SPEED */
-#define MT7531_PHYA_CTRL_SIGNAL3(p) MT7531_SGMII_REG(p, 0x128)
-#define MT7531_RG_TPHY_SPEED_MASK (BIT(2) | BIT(3))
-#define MT7531_RG_TPHY_SPEED_1_25G 0x0
-#define MT7531_RG_TPHY_SPEED_3_125G BIT(2)
+#define MT7531_SGMII_REG_BASE(p) (0x5000 + ((p) - 5) * 0x1000)
+#define MT7531_PHYA_CTRL_SIGNAL3 0x128
/* Register for system reset */
#define MT7530_SYS_CTRL 0x7000
@@ -703,13 +664,13 @@ struct mt7530_fdb {
* @pm: The matrix used to show all connections with the port.
* @pvid: The VLAN specified is to be considered a PVID at ingress. Any
* untagged frames will be assigned to the related VLAN.
- * @vlan_filtering: The flags indicating whether the port that can recognize
- * VLAN-tagged frames.
+ * @sgmii_pcs: Pointer to PCS instance for SerDes ports
*/
struct mt7530_port {
bool enable;
u32 pm;
u16 pvid;
+ struct phylink_pcs *sgmii_pcs;
};
/* Port 5 interface select definitions */
--
2.39.1
On 11/02/2023 17:02, Daniel Golle wrote:
> Introduce DT bindings for the MT7981 SoC to mediatek,net.yaml.
>
> Signed-off-by: Daniel Golle <[email protected]>
> ---
Confusing diff but in general looks ok except:
> +
> + mediatek,wed-pcie: true
This is now anything. I propose to cleanup the bindings first, before
adding new compatible.
Best regards,
Krzysztof
On 11/02/2023 17:02, Daniel Golle wrote:
> Convert mediatek,sgmiiisys bindings to DT schema format.
> Add maintainer Matthias Brugger, no maintainers were listed in the
> original documentation.
> As this node is also referenced by the Ethernet controller and used
> as SGMII PCS add this fact to the description.
>
Thank you for your patch. There is something to discuss/improve.
> diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
> new file mode 100644
> index 000000000000..99ceb08ad7c0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,sgmiisys.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
Drop quotes from both.
> +
> +title: MediaTek SGMIISYS Controller
> +
> +maintainers:
> + - Matthias Brugger <[email protected]>
> +
> +description:
> + The MediaTek SGMIISYS controller provides SGMII related clocks to the system
> + and is used by the Ethernet controller as SGMII PCS.
> +
> +properties:
> + $nodename:
> + pattern: "^syscon@[0-9a-f]+$"
Drop nodename, we do not require it per binding.
> +
> + compatible:
> + oneOf:
Drop oneOf, unless you plan to use it soon?
> + - items:
> + - enum:
> + - mediatek,mt7622-sgmiisys
> + - mediatek,mt7629-sgmiisys
> + - mediatek,mt7986-sgmiisys_0
> + - mediatek,mt7986-sgmiisys_1
> + - const: syscon
> +
Best regards,
Krzysztof
On 11/02/2023 17:02, Daniel Golle wrote:
> Add mediatek,pnswap boolean property as well as an example for the
> MediaTek MT7981 SoC making use of that new property.
>
> Signed-off-by: Daniel Golle <[email protected]>
> ---
> .../arm/mediatek/mediatek,sgmiisys.yaml | 22 +++++++++++++++++++
> 1 file changed, 22 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
> index 99ceb08ad7c0..97d4ab70e541 100644
> --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
> +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,sgmiisys.yaml
> @@ -23,6 +23,8 @@ properties:
> - enum:
> - mediatek,mt7622-sgmiisys
> - mediatek,mt7629-sgmiisys
> + - mediatek,mt7981-sgmiisys_0
> + - mediatek,mt7981-sgmiisys_1
> - mediatek,mt7986-sgmiisys_0
> - mediatek,mt7986-sgmiisys_1
> - const: syscon
> @@ -33,6 +35,10 @@ properties:
> '#clock-cells':
> const: 1
>
> + mediatek,pnswap:
> + description: Invert polarity of the SGMII data lanes
> + type: boolean
> +
> required:
> - compatible
> - reg
> @@ -51,3 +57,19 @@ examples:
> #clock-cells = <1>;
> };
> };
> + - |
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> + sgmiisys0: syscon@10060000 {
> + compatible = "mediatek,mt7981-sgmiisys_0", "syscon";
> + reg = <0 0x10060000 0 0x1000>;
> + mediatek,pnswap;
No really need for three almost the same nodes. Just choose one - with
or without pnswap.
Best regards,
Krzysztof
On Sat, Feb 11, 2023 at 04:04:51PM +0000, Daniel Golle wrote:
> The SGMII core found in several MediaTek SoCs is identical to what can
> also be found in MediaTek's MT7531 Ethernet switch IC.
> As this has not always been clear, both drivers developed different
> implementations to deal with the PCS.
>
> Add a dedicated driver, mostly by copying the code now found in the
> Ethernet driver. The now redundant code will be removed by a follow-up
> commit.
>
> Tested-by: Bj?rn Mork <[email protected]>
> Signed-off-by: Daniel Golle <[email protected]>
Reviewed-by: Russell King (Oracle) <[email protected]>
Thanks!
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
On Sat, Feb 11, 2023 at 04:05:18PM +0000, Daniel Golle wrote:
> @@ -4582,6 +4583,7 @@ static int mtk_probe(struct platform_device *pdev)
> if (!eth->sgmii)
> return -ENOMEM;
>
> + eth->sgmii->dev = eth->dev;
My comment on this appears unaddressed (and not responded to either).
> int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *r, u32 ana_rgc3)
> {
...
> + ss->pcs[i] = mtk_pcs_lynxi_create(ss->dev, regmap, ana_rgc3,
> + flags);
This appears to be the only place that sgmii->dev is used, and this
function is only called immediately after the above assignment.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!