This series adds ethernet support for the StarFive JH7110 RISC-V SoC.
The series includes PHY and MAC drivers. The PHY model is
YT8531 (from Motorcomm Inc), and the MAC version is dwmac-5.20
(from Synopsys DesignWare). For more information and support,
you can visit RVspace wiki[1].
This patchset should be applied after the patchset [2], [3], [4].
[1] https://wiki.rvspace.org/
[2] https://lore.kernel.org/all/[email protected]/
[3] https://lore.kernel.org/all/[email protected]/
[4] https://lore.kernel.org/all/[email protected]/
Yanhong Wang (7):
dt-bindings: net: snps,dwmac: Add compatible string for dwmac-5.20
version.
net: stmmac: platform: Add snps,dwmac-5.20 IP compatible string
dt-bindings: net: Add bindings for StarFive dwmac
net: phy: motorcomm: Add YT8531 phy support
net: stmmac: Add StarFive dwmac supoort
riscv: dts: starfive: jh7110: Add ethernet device node
riscv: dts: starfive: visionfive-v2: Add phy delay_chain configuration
.../devicetree/bindings/net/snps,dwmac.yaml | 2 +
.../bindings/net/starfive,dwmac-plat.yaml | 106 ++++++++++
MAINTAINERS | 6 +
.../jh7110-starfive-visionfive-v2.dts | 46 +++++
arch/riscv/boot/dts/starfive/jh7110.dtsi | 80 ++++++++
drivers/net/ethernet/stmicro/stmmac/Kconfig | 11 ++
drivers/net/ethernet/stmicro/stmmac/Makefile | 1 +
.../stmicro/stmmac/dwmac-starfive-plat.c | 147 ++++++++++++++
.../ethernet/stmicro/stmmac/stmmac_platform.c | 3 +-
drivers/net/phy/Kconfig | 3 +-
drivers/net/phy/motorcomm.c | 185 ++++++++++++++++++
11 files changed, 588 insertions(+), 2 deletions(-)
create mode 100644 Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml
create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
base-commit: 094226ad94f471a9f19e8f8e7140a09c2625abaa
prerequisite-patch-id: 8ebfffa09b478904bf7c516f76e2d824ddb60140
prerequisite-patch-id: e8dd8258a4c4062eee2cf07c4607d52baea71f3a
prerequisite-patch-id: d050d884d7b091ff30508a70f5ce5164bb3b72e5
prerequisite-patch-id: 0e41f8cfd4861fcbf6f2e6a2559ce28f0450299e
prerequisite-patch-id: 6e1652501859b85f101ff3b15ced585d43c71c1b
prerequisite-patch-id: 587628a67adad5c655e5f998bf6c4a368ec07d3c
prerequisite-patch-id: 596490c0e397df6c0249c1306fbb1d5bf00b5b83
prerequisite-patch-id: dc873317826b50364344b25ac5cd74e811403f3d
prerequisite-patch-id: a50150f41d8e874553023187e22eb24dffae8d16
prerequisite-patch-id: 735e62255c75801bdc4c0b4107850bce821ff7f5
prerequisite-patch-id: 9d2e83a2dd43e193f534283fab73e90b4f435043
prerequisite-patch-id: 7a43e0849a9afa3c6f83547fd16d9271b07619e5
prerequisite-patch-id: e7aa6fb05314bad6d94c465f3f59969871bf3d2e
prerequisite-patch-id: 6276b2a23818c65ff2ad3d65b562615690cffee9
prerequisite-patch-id: d834ece14ffb525b8c3e661e78736692f33fca9b
prerequisite-patch-id: 4c17a3ce4dae9b788795d915bf775630f5c43c53
prerequisite-patch-id: dabb913fd478e97593e45c23fee4be9fd807f851
prerequisite-patch-id: ba61df106fbe2ada21e8f22c3d2cfaf7809c84b6
prerequisite-patch-id: 287572fb64f83f5d931034f7c75674907584a087
prerequisite-patch-id: 536114f0732646095ef5302a165672b3290d4c75
prerequisite-patch-id: 258ea5f9b8bf41b6981345dcc81795f25865d38f
prerequisite-patch-id: 8b6f2c9660c0ac0ee4e73e4c21aca8e6b75e81b9
prerequisite-patch-id: e09e995700a814a763aa304ad3881a7222acf556
prerequisite-patch-id: 841cd71b556b480d6a5a5e332eeca70d6a76ec3f
prerequisite-patch-id: d074c7ffa2917a9f754d5801e3f67bc980f9de4c
prerequisite-patch-id: 5f59bc7cbbf1230e5ff4761fa7c1116d4e6e5d71
prerequisite-patch-id: d5da3475c6a3588e11a1678feb565bdd459b548e
--
2.17.1
This adds basic support for the Motorcomm YT8531
Gigabit Ethernet PHY.
Signed-off-by: Yanhong Wang <[email protected]>
---
drivers/net/phy/Kconfig | 3 +-
drivers/net/phy/motorcomm.c | 185 ++++++++++++++++++++++++++++++++++++
2 files changed, 187 insertions(+), 1 deletion(-)
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index c57a0262fb64..86399254d9ff 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -258,9 +258,10 @@ config MICROSEMI_PHY
config MOTORCOMM_PHY
tristate "Motorcomm PHYs"
+ default SOC_STARFIVE
help
Enables support for Motorcomm network PHYs.
- Currently supports the YT8511 gigabit PHY.
+ Currently supports the YT8511 and YT8531 gigabit PHYs.
config NATIONAL_PHY
tristate "National Semiconductor PHYs"
diff --git a/drivers/net/phy/motorcomm.c b/drivers/net/phy/motorcomm.c
index 7e6ac2c5e27e..7f3e22879399 100644
--- a/drivers/net/phy/motorcomm.c
+++ b/drivers/net/phy/motorcomm.c
@@ -3,13 +3,17 @@
* Driver for Motorcomm PHYs
*
* Author: Peter Geis <[email protected]>
+ *
*/
+#include <linux/bitops.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/of.h>
#include <linux/phy.h>
#define PHY_ID_YT8511 0x0000010a
+#define PHY_ID_YT8531 0x4f51e91b
#define YT8511_PAGE_SELECT 0x1e
#define YT8511_PAGE 0x1f
@@ -17,6 +21,10 @@
#define YT8511_EXT_DELAY_DRIVE 0x0d
#define YT8511_EXT_SLEEP_CTRL 0x27
+#define YTPHY_EXT_SMI_SDS_PHY 0xa000
+#define YTPHY_EXT_CHIP_CONFIG 0xa001
+#define YTPHY_EXT_RGMII_CONFIG1 0xa003
+
/* 2b00 25m from pll
* 2b01 25m from xtl *default*
* 2b10 62.m from pll
@@ -38,6 +46,34 @@
#define YT8511_DELAY_FE_TX_EN (0xf << 12)
#define YT8511_DELAY_FE_TX_DIS (0x2 << 12)
+struct ytphy_reg_field {
+ char *name;
+ u32 mask;
+ u8 dflt; /* Default value */
+};
+
+struct ytphy_priv_t {
+ u32 tx_inverted_1000;
+ u32 tx_inverted_100;
+ u32 tx_inverted_10;
+};
+
+static const struct ytphy_reg_field ytphy_rxtxd_grp[] = {
+ { "rx_delay_sel", GENMASK(13, 10), 0x0 },
+ { "tx_delay_sel_fe", GENMASK(7, 4), 0xf },
+ { "tx_delay_sel", GENMASK(3, 0), 0x1 }
+};
+
+static const struct ytphy_reg_field ytphy_txinver_grp[] = {
+ { "tx_inverted_1000", BIT(14), 0x0 },
+ { "tx_inverted_100", BIT(14), 0x0 },
+ { "tx_inverted_10", BIT(14), 0x0 }
+};
+
+static const struct ytphy_reg_field ytphy_rxden_grp[] = {
+ { "rxc_dly_en", BIT(8), 0x1 }
+};
+
static int yt8511_read_page(struct phy_device *phydev)
{
return __phy_read(phydev, YT8511_PAGE_SELECT);
@@ -48,6 +84,33 @@ static int yt8511_write_page(struct phy_device *phydev, int page)
return __phy_write(phydev, YT8511_PAGE_SELECT, page);
};
+static int ytphy_read_ext(struct phy_device *phydev, u32 regnum)
+{
+ int ret;
+ int val;
+
+ ret = __phy_write(phydev, YT8511_PAGE_SELECT, regnum);
+ if (ret < 0)
+ return ret;
+
+ val = __phy_read(phydev, YT8511_PAGE);
+
+ return val;
+}
+
+static int ytphy_write_ext(struct phy_device *phydev, u32 regnum, u16 val)
+{
+ int ret;
+
+ ret = __phy_write(phydev, YT8511_PAGE_SELECT, regnum);
+ if (ret < 0)
+ return ret;
+
+ ret = __phy_write(phydev, YT8511_PAGE, val);
+
+ return ret;
+}
+
static int yt8511_config_init(struct phy_device *phydev)
{
int oldpage, ret = 0;
@@ -111,6 +174,116 @@ static int yt8511_config_init(struct phy_device *phydev)
return phy_restore_page(phydev, oldpage, ret);
}
+static int ytphy_config_init(struct phy_device *phydev)
+{
+ struct device_node *of_node;
+ u32 val;
+ u32 mask;
+ u32 cfg;
+ int ret;
+ int i = 0;
+
+ of_node = phydev->mdio.dev.of_node;
+ if (of_node) {
+ ret = of_property_read_u32(of_node, ytphy_rxden_grp[0].name, &cfg);
+ if (!ret) {
+ mask = ytphy_rxden_grp[0].mask;
+ val = ytphy_read_ext(phydev, YTPHY_EXT_CHIP_CONFIG);
+
+ /* check the cfg overflow or not */
+ cfg = cfg > mask >> (ffs(mask) - 1) ? mask : cfg;
+
+ val &= ~mask;
+ val |= FIELD_PREP(mask, cfg);
+ ytphy_write_ext(phydev, YTPHY_EXT_CHIP_CONFIG, val);
+ }
+
+ val = ytphy_read_ext(phydev, YTPHY_EXT_RGMII_CONFIG1);
+ for (i = 0; i < ARRAY_SIZE(ytphy_rxtxd_grp); i++) {
+ ret = of_property_read_u32(of_node, ytphy_rxtxd_grp[i].name, &cfg);
+ if (!ret) {
+ mask = ytphy_rxtxd_grp[i].mask;
+
+ /* check the cfg overflow or not */
+ cfg = cfg > mask >> (ffs(mask) - 1) ? mask : cfg;
+
+ val &= ~mask;
+ val |= cfg << (ffs(mask) - 1);
+ }
+ }
+ return ytphy_write_ext(phydev, YTPHY_EXT_RGMII_CONFIG1, val);
+ }
+
+ phydev_err(phydev, "Get of node fail\n");
+
+ return -EINVAL;
+}
+
+static void ytphy_link_change_notify(struct phy_device *phydev)
+{
+ u32 val;
+ struct ytphy_priv_t *ytphy_priv = phydev->priv;
+
+ if (phydev->speed < 0)
+ return;
+
+ val = ytphy_read_ext(phydev, YTPHY_EXT_RGMII_CONFIG1);
+ switch (phydev->speed) {
+ case SPEED_1000:
+ val &= ~ytphy_txinver_grp[0].mask;
+ val |= FIELD_PREP(ytphy_txinver_grp[0].mask,
+ ytphy_priv->tx_inverted_1000);
+ break;
+
+ case SPEED_100:
+ val &= ~ytphy_txinver_grp[1].mask;
+ val |= FIELD_PREP(ytphy_txinver_grp[1].mask,
+ ytphy_priv->tx_inverted_100);
+ break;
+
+ case SPEED_10:
+ val &= ~ytphy_txinver_grp[2].mask;
+ val |= FIELD_PREP(ytphy_txinver_grp[2].mask,
+ ytphy_priv->tx_inverted_10);
+ break;
+
+ default:
+ break;
+ }
+
+ ytphy_write_ext(phydev, YTPHY_EXT_RGMII_CONFIG1, val);
+}
+
+static int yt8531_probe(struct phy_device *phydev)
+{
+ struct ytphy_priv_t *priv;
+ const struct device_node *of_node;
+ u32 val;
+ int ret;
+
+ priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ of_node = phydev->mdio.dev.of_node;
+ if (of_node) {
+ ret = of_property_read_u32(of_node, ytphy_txinver_grp[0].name, &val);
+ if (!ret)
+ priv->tx_inverted_1000 = val;
+
+ ret = of_property_read_u32(of_node, ytphy_txinver_grp[1].name, &val);
+ if (!ret)
+ priv->tx_inverted_100 = val;
+
+ ret = of_property_read_u32(of_node, ytphy_txinver_grp[2].name, &val);
+ if (!ret)
+ priv->tx_inverted_10 = val;
+ }
+ phydev->priv = priv;
+
+ return 0;
+}
+
static struct phy_driver motorcomm_phy_drvs[] = {
{
PHY_ID_MATCH_EXACT(PHY_ID_YT8511),
@@ -120,6 +293,17 @@ static struct phy_driver motorcomm_phy_drvs[] = {
.resume = genphy_resume,
.read_page = yt8511_read_page,
.write_page = yt8511_write_page,
+ }, {
+ PHY_ID_MATCH_EXACT(PHY_ID_YT8531),
+ .name = "YT8531 Gigabit Ethernet",
+ .probe = yt8531_probe,
+ .config_init = ytphy_config_init,
+ .read_status = genphy_read_status,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
+ .read_page = yt8511_read_page,
+ .write_page = yt8511_write_page,
+ .link_change_notify = ytphy_link_change_notify,
},
};
@@ -131,6 +315,7 @@ MODULE_LICENSE("GPL");
static const struct mdio_device_id __maybe_unused motorcomm_tbl[] = {
{ PHY_ID_MATCH_EXACT(PHY_ID_YT8511) },
+ { PHY_ID_MATCH_EXACT(PHY_ID_YT8531) },
{ /* sentinal */ }
};
--
2.17.1
Add dwmac-5.20 version to snps.dwmac.yaml
Signed-off-by: Emil Renner Berthing <[email protected]>
Signed-off-by: Yanhong Wang <[email protected]>
---
Documentation/devicetree/bindings/net/snps,dwmac.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 13b984076af5..d8779d3de3d6 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -30,6 +30,7 @@ select:
- snps,dwmac-4.10a
- snps,dwmac-4.20a
- snps,dwmac-5.10a
+ - snps,dwmac-5.20
- snps,dwxgmac
- snps,dwxgmac-2.10
--
2.17.1
This adds StarFive dwmac driver support on the StarFive JH7110 SoCs.
Signed-off-by: Yanhong Wang <[email protected]>
---
MAINTAINERS | 1 +
drivers/net/ethernet/stmicro/stmmac/Kconfig | 11 ++
drivers/net/ethernet/stmicro/stmmac/Makefile | 1 +
.../stmicro/stmmac/dwmac-starfive-plat.c | 147 ++++++++++++++++++
4 files changed, 160 insertions(+)
create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 7eaaec8d3b96..36cb00cf860b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19610,6 +19610,7 @@ STARFIVE DWMAC GLUE LAYER
M: Yanhong Wang <[email protected]>
S: Maintained
F: Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml
+F: drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
STARFIVE PINCTRL DRIVER
M: Emil Renner Berthing <[email protected]>
diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
index 31ff35174034..1e29cd3770b9 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
+++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
@@ -235,6 +235,17 @@ config DWMAC_INTEL_PLAT
the stmmac device driver. This driver is used for the Intel Keem Bay
SoC.
+config DWMAC_STARFIVE_PLAT
+ tristate "StarFive dwmac support"
+ depends on OF && COMMON_CLK
+ depends on STMMAC_ETH
+ default SOC_STARFIVE
+ help
+ Support for ethernet controllers on StarFive RISC-V SoCs
+
+ This selects the StarFive platform specific glue layer support for
+ the stmmac device driver. This driver is used for StarFive RISC-V SoCs.
+
config DWMAC_VISCONTI
tristate "Toshiba Visconti DWMAC support"
default ARCH_VISCONTI
diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile
index d4e12e9ace4f..a63ab0ab5071 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Makefile
+++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_DWMAC_DWC_QOS_ETH) += dwmac-dwc-qos-eth.o
obj-$(CONFIG_DWMAC_INTEL_PLAT) += dwmac-intel-plat.o
obj-$(CONFIG_DWMAC_GENERIC) += dwmac-generic.o
obj-$(CONFIG_DWMAC_IMX8) += dwmac-imx.o
+obj-$(CONFIG_DWMAC_STARFIVE_PLAT) += dwmac-starfive-plat.o
obj-$(CONFIG_DWMAC_VISCONTI) += dwmac-visconti.o
stmmac-platform-objs:= stmmac_platform.o
dwmac-altr-socfpga-objs := altr_tse_pcs.o dwmac-socfpga.o
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
new file mode 100644
index 000000000000..8fbf584d4e19
--- /dev/null
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * StarFive DWMAC platform driver
+ *
+ * Copyright(C) 2022 StarFive Technology Co., Ltd.
+ *
+ */
+
+#include <linux/of_device.h>
+#include "stmmac_platform.h"
+
+struct starfive_dwmac {
+ struct device *dev;
+ struct clk *clk_tx;
+ struct clk *clk_gtx;
+ struct clk *clk_gtxc;
+};
+
+static void starfive_eth_fix_mac_speed(void *priv, unsigned int speed)
+{
+ struct starfive_dwmac *dwmac = priv;
+ unsigned long rate;
+ int err;
+
+ switch (speed) {
+ case SPEED_1000:
+ rate = 125000000;
+ break;
+ case SPEED_100:
+ rate = 25000000;
+ break;
+ case SPEED_10:
+ rate = 2500000;
+ break;
+ default:
+ dev_err(dwmac->dev, "invalid speed %u\n", speed);
+ return;
+ }
+
+ err = clk_set_rate(dwmac->clk_gtx, rate);
+ if (err)
+ dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
+}
+
+static void dwmac_starfive_clk_disable(void *clk)
+{
+ clk_disable_unprepare(clk);
+}
+
+static int starfive_eth_plat_probe(struct platform_device *pdev)
+{
+ struct plat_stmmacenet_data *plat_dat;
+ struct stmmac_resources stmmac_res;
+ struct starfive_dwmac *dwmac;
+ int err;
+
+ err = stmmac_get_platform_resources(pdev, &stmmac_res);
+ if (err)
+ return err;
+
+ plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);
+ if (IS_ERR(plat_dat)) {
+ dev_err(&pdev->dev, "dt configuration failed\n");
+ return PTR_ERR(plat_dat);
+ }
+
+ dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
+ if (!dwmac)
+ return -ENOMEM;
+
+ dwmac->clk_tx = devm_clk_get(&pdev->dev, "tx");
+ if (IS_ERR(dwmac->clk_tx))
+ return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_tx),
+ "error getting tx clock\n");
+
+ err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
+ dwmac->clk_tx);
+ if (err)
+ return err;
+
+ err = clk_prepare_enable(dwmac->clk_tx);
+ if (err)
+ return dev_err_probe(&pdev->dev, err, "error enabling tx clock\n");
+
+ dwmac->clk_gtx = devm_clk_get(&pdev->dev, "gtx");
+ if (IS_ERR(dwmac->clk_gtx))
+ return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_gtx),
+ "error getting gtx clock\n");
+
+ err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
+ dwmac->clk_gtx);
+ if (err)
+ return err;
+
+ err = clk_prepare_enable(dwmac->clk_gtx);
+ if (err)
+ return dev_err_probe(&pdev->dev, err, "error enabling gtx clock\n");
+
+ dwmac->clk_gtxc = devm_clk_get(&pdev->dev, "gtxc");
+ if (IS_ERR(dwmac->clk_gtxc))
+ return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_gtxc),
+ "error getting gtxc clock\n");
+
+ err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
+ dwmac->clk_gtxc);
+ if (err)
+ return err;
+
+ err = clk_prepare_enable(dwmac->clk_gtxc);
+ if (err)
+ return dev_err_probe(&pdev->dev, err, "error enabling gtxc clock\n");
+
+ dwmac->dev = &pdev->dev;
+ plat_dat->fix_mac_speed = starfive_eth_fix_mac_speed;
+ plat_dat->init = NULL;
+ plat_dat->bsp_priv = dwmac;
+ plat_dat->dma_cfg->dche = true;
+
+ err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
+ if (err) {
+ stmmac_remove_config_dt(pdev, plat_dat);
+ return err;
+ }
+
+ return 0;
+}
+
+static const struct of_device_id starfive_eth_plat_match[] = {
+ {.compatible = "starfive,dwmac"},
+ { }
+};
+
+static struct platform_driver starfive_eth_plat_driver = {
+ .probe = starfive_eth_plat_probe,
+ .remove = stmmac_pltfr_remove,
+ .driver = {
+ .name = "starfive-eth-plat",
+ .pm = &stmmac_pltfr_pm_ops,
+ .of_match_table = starfive_eth_plat_match,
+ },
+};
+
+module_platform_driver(starfive_eth_plat_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("StarFive DWMAC platform driver");
+MODULE_AUTHOR("Yanhong Wang <[email protected]>");
--
2.17.1
Add "snps,dwmac-5.20" compatible string for 5.20 version that can avoid
to define some platform data in the glue layer.
Signed-off-by: Emil Renner Berthing <[email protected]>
Signed-off-by: Yanhong Wang <[email protected]>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index 50f6b4a14be4..cc3b701af802 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -519,7 +519,8 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
of_device_is_compatible(np, "snps,dwmac-4.10a") ||
of_device_is_compatible(np, "snps,dwmac-4.20a") ||
- of_device_is_compatible(np, "snps,dwmac-5.10a")) {
+ of_device_is_compatible(np, "snps,dwmac-5.10a") ||
+ of_device_is_compatible(np, "snps,dwmac-5.20")) {
plat->has_gmac4 = 1;
plat->has_gmac = 0;
plat->pmt = 1;
--
2.17.1
> +static const struct ytphy_reg_field ytphy_rxtxd_grp[] = {
> + { "rx_delay_sel", GENMASK(13, 10), 0x0 },
> + { "tx_delay_sel_fe", GENMASK(7, 4), 0xf },
> + { "tx_delay_sel", GENMASK(3, 0), 0x1 }
> +};
> +
> +static const struct ytphy_reg_field ytphy_txinver_grp[] = {
> + { "tx_inverted_1000", BIT(14), 0x0 },
> + { "tx_inverted_100", BIT(14), 0x0 },
> + { "tx_inverted_10", BIT(14), 0x0 }
> +};
> +
> +static const struct ytphy_reg_field ytphy_rxden_grp[] = {
> + { "rxc_dly_en", BIT(8), 0x1 }
> +};
> +
> +static int ytphy_config_init(struct phy_device *phydev)
> +{
> + struct device_node *of_node;
> + u32 val;
> + u32 mask;
> + u32 cfg;
> + int ret;
> + int i = 0;
> +
> + of_node = phydev->mdio.dev.of_node;
> + if (of_node) {
> + ret = of_property_read_u32(of_node, ytphy_rxden_grp[0].name, &cfg);
You need to document the device tree binding.
Frank Sae always gets the locking wrong in this driver. Have you
tested your patch with lockdep enabled?
Andrew
On 01/12/2022 10:02, Yanhong Wang wrote:
> Add dwmac-5.20 version to snps.dwmac.yaml
Drop full stop from subject and add it here instead.
>
> Signed-off-by: Emil Renner Berthing <[email protected]>
> Signed-off-by: Yanhong Wang <[email protected]>
Two people contributed this one single line?
Best regards,
Krzysztof
On 2022/12/2 0:18, Krzysztof Kozlowski wrote:
> On 01/12/2022 10:02, Yanhong Wang wrote:
>> Add dwmac-5.20 version to snps.dwmac.yaml
>
> Drop full stop from subject and add it here instead.
>
Will update in the next version.
>>
>> Signed-off-by: Emil Renner Berthing <[email protected]>
>> Signed-off-by: Yanhong Wang <[email protected]>
>
> Two people contributed this one single line?
>
Emil made this patch and I submitted it.
> Best regards,
> Krzysztof
>
On 02/12/2022 03:53, yanhong wang wrote:
>
>
> On 2022/12/2 0:18, Krzysztof Kozlowski wrote:
>> On 01/12/2022 10:02, Yanhong Wang wrote:
>>> Add dwmac-5.20 version to snps.dwmac.yaml
>>
>> Drop full stop from subject and add it here instead.
>>
>
> Will update in the next version.
>
>>>
>>> Signed-off-by: Emil Renner Berthing <[email protected]>
>>> Signed-off-by: Yanhong Wang <[email protected]>
>>
>> Two people contributed this one single line?
>>
>
> Emil made this patch and I submitted it.
If Emil made this patch, then your From field is incorrect.
Best regards,
Krzysztof
On 2022/12/1 23:40, Andrew Lunn wrote:
>> +static const struct ytphy_reg_field ytphy_rxtxd_grp[] = {
>> + { "rx_delay_sel", GENMASK(13, 10), 0x0 },
>> + { "tx_delay_sel_fe", GENMASK(7, 4), 0xf },
>> + { "tx_delay_sel", GENMASK(3, 0), 0x1 }
>> +};
>> +
>> +static const struct ytphy_reg_field ytphy_txinver_grp[] = {
>> + { "tx_inverted_1000", BIT(14), 0x0 },
>> + { "tx_inverted_100", BIT(14), 0x0 },
>> + { "tx_inverted_10", BIT(14), 0x0 }
>> +};
>> +
>> +static const struct ytphy_reg_field ytphy_rxden_grp[] = {
>> + { "rxc_dly_en", BIT(8), 0x1 }
>> +};
>> +
>> +static int ytphy_config_init(struct phy_device *phydev)
>> +{
>> + struct device_node *of_node;
>> + u32 val;
>> + u32 mask;
>> + u32 cfg;
>> + int ret;
>> + int i = 0;
>> +
>> + of_node = phydev->mdio.dev.of_node;
>> + if (of_node) {
>> + ret = of_property_read_u32(of_node, ytphy_rxden_grp[0].name, &cfg);
>
> You need to document the device tree binding.
>
> Frank Sae always gets the locking wrong in this driver. Have you
> tested your patch with lockdep enabled?
>
I will add document to describe details in the next version, such as "rx_delay_sel","tx_inverted_10" etc.
> Andrew
On Thu, 1 Dec 2022 at 10:05, Yanhong Wang <[email protected]> wrote:
>
> Add "snps,dwmac-5.20" compatible string for 5.20 version that can avoid
> to define some platform data in the glue layer.
>
> Signed-off-by: Emil Renner Berthing <[email protected]>
> Signed-off-by: Yanhong Wang <[email protected]>
Hi Yanhong.
Thanks for submitting this.
But just as a reminder. Please don't change the author of the commits
you cherry-picked from my tree.
/Emil
> ---
> drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> index 50f6b4a14be4..cc3b701af802 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> @@ -519,7 +519,8 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
> if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
> of_device_is_compatible(np, "snps,dwmac-4.10a") ||
> of_device_is_compatible(np, "snps,dwmac-4.20a") ||
> - of_device_is_compatible(np, "snps,dwmac-5.10a")) {
> + of_device_is_compatible(np, "snps,dwmac-5.10a") ||
> + of_device_is_compatible(np, "snps,dwmac-5.20")) {
> plat->has_gmac4 = 1;
> plat->has_gmac = 0;
> plat->pmt = 1;
> --
> 2.17.1
>
>
> _______________________________________________
> linux-riscv mailing list
> [email protected]
> http://lists.infradead.org/mailman/listinfo/linux-riscv
On Fri, 2 Dec 2022 at 09:04, Krzysztof Kozlowski
<[email protected]> wrote:
>
> On 02/12/2022 03:53, yanhong wang wrote:
> >
> >
> > On 2022/12/2 0:18, Krzysztof Kozlowski wrote:
> >> On 01/12/2022 10:02, Yanhong Wang wrote:
> >>> Add dwmac-5.20 version to snps.dwmac.yaml
> >>
> >> Drop full stop from subject and add it here instead.
> >>
> >
> > Will update in the next version.
> >
> >>>
> >>> Signed-off-by: Emil Renner Berthing <[email protected]>
> >>> Signed-off-by: Yanhong Wang <[email protected]>
> >>
> >> Two people contributed this one single line?
> >>
> >
> > Emil made this patch and I submitted it.
>
> If Emil made this patch, then your From field is incorrect.
Yes, please don't change the author of the commits you cherry-picked
from my tree.
But now I'm curious. Did you check with your colleagues that the dwmac
IP on the SoC is in fact version 5.20?
This was just an educated guess from my side.
/Emil
> Best regards,
> Krzysztof
>
>
> _______________________________________________
> linux-riscv mailing list
> [email protected]
> http://lists.infradead.org/mailman/listinfo/linux-riscv
Hi Yanhong,
Thanks for submitting this. Again please don't change the author of
the commits you cherry-picked from my tree. This is why we have the
Co-developed-by: tag so you can mark that you added or in this case
removed code.
I'd hoped you would still include the support for the JH7100 though.
Also you seem to have changed the name of some of the functions.
Please at least keep the prefix consistent if you do that. Now it's a
mix of dwmac_starfive_, starfive_eth_ and starfive_eth_plat.
On Thu, 1 Dec 2022 at 10:07, Yanhong Wang <[email protected]> wrote:
>
> This adds StarFive dwmac driver support on the StarFive JH7110 SoCs.
>
> Signed-off-by: Yanhong Wang <[email protected]>
> ---
> MAINTAINERS | 1 +
> drivers/net/ethernet/stmicro/stmmac/Kconfig | 11 ++
> drivers/net/ethernet/stmicro/stmmac/Makefile | 1 +
> .../stmicro/stmmac/dwmac-starfive-plat.c | 147 ++++++++++++++++++
> 4 files changed, 160 insertions(+)
> create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 7eaaec8d3b96..36cb00cf860b 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -19610,6 +19610,7 @@ STARFIVE DWMAC GLUE LAYER
> M: Yanhong Wang <[email protected]>
> S: Maintained
> F: Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml
> +F: drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
>
> STARFIVE PINCTRL DRIVER
> M: Emil Renner Berthing <[email protected]>
> diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
> index 31ff35174034..1e29cd3770b9 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
> +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
> @@ -235,6 +235,17 @@ config DWMAC_INTEL_PLAT
> the stmmac device driver. This driver is used for the Intel Keem Bay
> SoC.
>
> +config DWMAC_STARFIVE_PLAT
Why did you add the _PLAT suffix? None of the other SoC wrappers have this..
> + tristate "StarFive dwmac support"
> + depends on OF && COMMON_CLK
> + depends on STMMAC_ETH
> + default SOC_STARFIVE
> + help
> + Support for ethernet controllers on StarFive RISC-V SoCs
> +
> + This selects the StarFive platform specific glue layer support for
> + the stmmac device driver. This driver is used for StarFive RISC-V SoCs.
> +
> config DWMAC_VISCONTI
> tristate "Toshiba Visconti DWMAC support"
> default ARCH_VISCONTI
> diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile
> index d4e12e9ace4f..a63ab0ab5071 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/Makefile
> +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
> @@ -31,6 +31,7 @@ obj-$(CONFIG_DWMAC_DWC_QOS_ETH) += dwmac-dwc-qos-eth.o
> obj-$(CONFIG_DWMAC_INTEL_PLAT) += dwmac-intel-plat.o
> obj-$(CONFIG_DWMAC_GENERIC) += dwmac-generic.o
> obj-$(CONFIG_DWMAC_IMX8) += dwmac-imx.o
> +obj-$(CONFIG_DWMAC_STARFIVE_PLAT) += dwmac-starfive-plat.o
> obj-$(CONFIG_DWMAC_VISCONTI) += dwmac-visconti.o
> stmmac-platform-objs:= stmmac_platform.o
> dwmac-altr-socfpga-objs := altr_tse_pcs.o dwmac-socfpga.o
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
> new file mode 100644
> index 000000000000..8fbf584d4e19
> --- /dev/null
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
> @@ -0,0 +1,147 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * StarFive DWMAC platform driver
> + *
> + * Copyright(C) 2022 StarFive Technology Co., Ltd.
Hmm.. where did my copyright go?
> + *
> + */
> +
> +#include <linux/of_device.h>
> +#include "stmmac_platform.h"
> +
> +struct starfive_dwmac {
> + struct device *dev;
> + struct clk *clk_tx;
> + struct clk *clk_gtx;
> + struct clk *clk_gtxc;
> +};
> +
> +static void starfive_eth_fix_mac_speed(void *priv, unsigned int speed)
> +{
> + struct starfive_dwmac *dwmac = priv;
> + unsigned long rate;
> + int err;
> +
> + switch (speed) {
> + case SPEED_1000:
> + rate = 125000000;
> + break;
> + case SPEED_100:
> + rate = 25000000;
> + break;
> + case SPEED_10:
> + rate = 2500000;
> + break;
> + default:
> + dev_err(dwmac->dev, "invalid speed %u\n", speed);
> + return;
> + }
> +
> + err = clk_set_rate(dwmac->clk_gtx, rate);
> + if (err)
> + dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
> +}
> +
> +static void dwmac_starfive_clk_disable(void *clk)
> +{
> + clk_disable_unprepare(clk);
> +}
> +
> +static int starfive_eth_plat_probe(struct platform_device *pdev)
> +{
> + struct plat_stmmacenet_data *plat_dat;
> + struct stmmac_resources stmmac_res;
> + struct starfive_dwmac *dwmac;
> + int err;
> +
> + err = stmmac_get_platform_resources(pdev, &stmmac_res);
> + if (err)
> + return err;
> +
> + plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);
> + if (IS_ERR(plat_dat)) {
> + dev_err(&pdev->dev, "dt configuration failed\n");
> + return PTR_ERR(plat_dat);
> + }
> +
> + dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
> + if (!dwmac)
> + return -ENOMEM;
> +
> + dwmac->clk_tx = devm_clk_get(&pdev->dev, "tx");
> + if (IS_ERR(dwmac->clk_tx))
> + return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_tx),
> + "error getting tx clock\n");
> +
> + err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
> + dwmac->clk_tx);
> + if (err)
> + return err;
> +
> + err = clk_prepare_enable(dwmac->clk_tx);
> + if (err)
> + return dev_err_probe(&pdev->dev, err, "error enabling tx clock\n");
> +
> + dwmac->clk_gtx = devm_clk_get(&pdev->dev, "gtx");
> + if (IS_ERR(dwmac->clk_gtx))
> + return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_gtx),
> + "error getting gtx clock\n");
> +
> + err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
> + dwmac->clk_gtx);
> + if (err)
> + return err;
> +
> + err = clk_prepare_enable(dwmac->clk_gtx);
> + if (err)
> + return dev_err_probe(&pdev->dev, err, "error enabling gtx clock\n");
I think the 3 calls above can be simplified to devm_clk_get_enabled().
> + dwmac->clk_gtxc = devm_clk_get(&pdev->dev, "gtxc");
> + if (IS_ERR(dwmac->clk_gtxc))
> + return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_gtxc),
> + "error getting gtxc clock\n");
> +
> + err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
> + dwmac->clk_gtxc);
> + if (err)
> + return err;
> +
> + err = clk_prepare_enable(dwmac->clk_gtxc);
> + if (err)
> + return dev_err_probe(&pdev->dev, err, "error enabling gtxc clock\n");
Same here.
> +
> + dwmac->dev = &pdev->dev;
> + plat_dat->fix_mac_speed = starfive_eth_fix_mac_speed;
> + plat_dat->init = NULL;
> + plat_dat->bsp_priv = dwmac;
> + plat_dat->dma_cfg->dche = true;
> +
> + err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
> + if (err) {
> + stmmac_remove_config_dt(pdev, plat_dat);
> + return err;
> + }
> +
> + return 0;
> +}
> +
> +static const struct of_device_id starfive_eth_plat_match[] = {
> + {.compatible = "starfive,dwmac"},
> + { }
> +};
> +
> +static struct platform_driver starfive_eth_plat_driver = {
> + .probe = starfive_eth_plat_probe,
> + .remove = stmmac_pltfr_remove,
> + .driver = {
> + .name = "starfive-eth-plat",
> + .pm = &stmmac_pltfr_pm_ops,
> + .of_match_table = starfive_eth_plat_match,
> + },
> +};
> +
> +module_platform_driver(starfive_eth_plat_driver);
> +
> +MODULE_LICENSE("GPL");
> +MODULE_DESCRIPTION("StarFive DWMAC platform driver");
Here you also seem to have removed me.
> +MODULE_AUTHOR("Yanhong Wang <[email protected]>");
> --
> 2.17.1
>
>
> _______________________________________________
> linux-riscv mailing list
> [email protected]
> http://lists.infradead.org/mailman/listinfo/linux-riscv
On 2022/12/7 21:56, Emil Renner Berthing wrote:
> On Fri, 2 Dec 2022 at 09:04, Krzysztof Kozlowski
> <[email protected]> wrote:
>>
>> On 02/12/2022 03:53, yanhong wang wrote:
>> >
>> >
>> > On 2022/12/2 0:18, Krzysztof Kozlowski wrote:
>> >> On 01/12/2022 10:02, Yanhong Wang wrote:
>> >>> Add dwmac-5.20 version to snps.dwmac.yaml
>> >>
>> >> Drop full stop from subject and add it here instead.
>> >>
>> >
>> > Will update in the next version.
>> >
>> >>>
>> >>> Signed-off-by: Emil Renner Berthing <[email protected]>
>> >>> Signed-off-by: Yanhong Wang <[email protected]>
>> >>
>> >> Two people contributed this one single line?
>> >>
>> >
>> > Emil made this patch and I submitted it.
>>
>> If Emil made this patch, then your From field is incorrect.
>
> Yes, please don't change the author of the commits you cherry-picked
> from my tree.
>
> But now I'm curious. Did you check with your colleagues that the dwmac
> IP on the SoC is in fact version 5.20?
I can confirm that the IP version is 5.20 on JH7110 SoC.
> This was just an educated guess from my side.
>
> /Emil
>
>> Best regards,
>> Krzysztof
>>
>>
>> _______________________________________________
>> linux-riscv mailing list
>> [email protected]
>> http://lists.infradead.org/mailman/listinfo/linux-riscv
On 2022/12/7 21:58, Emil Renner Berthing wrote:
> On Thu, 1 Dec 2022 at 10:05, Yanhong Wang <[email protected]> wrote:
>>
>> Add "snps,dwmac-5.20" compatible string for 5.20 version that can avoid
>> to define some platform data in the glue layer.
>>
>> Signed-off-by: Emil Renner Berthing <[email protected]>
>> Signed-off-by: Yanhong Wang <[email protected]>
>
> Hi Yanhong.
>
> Thanks for submitting this.
> But just as a reminder. Please don't change the author of the commits
> you cherry-picked from my tree.
>
I will recover the author is you in the next version.
> /Emil
>
>> ---
>> drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
>> index 50f6b4a14be4..cc3b701af802 100644
>> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
>> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
>> @@ -519,7 +519,8 @@ stmmac_probe_config_dt(struct platform_device *pdev, u8 *mac)
>> if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
>> of_device_is_compatible(np, "snps,dwmac-4.10a") ||
>> of_device_is_compatible(np, "snps,dwmac-4.20a") ||
>> - of_device_is_compatible(np, "snps,dwmac-5.10a")) {
>> + of_device_is_compatible(np, "snps,dwmac-5.10a") ||
>> + of_device_is_compatible(np, "snps,dwmac-5.20")) {
>> plat->has_gmac4 = 1;
>> plat->has_gmac = 0;
>> plat->pmt = 1;
>> --
>> 2.17.1
>>
>>
>> _______________________________________________
>> linux-riscv mailing list
>> [email protected]
>> http://lists.infradead.org/mailman/listinfo/linux-riscv
On 2022/12/7 22:16, Emil Renner Berthing wrote:
> Hi Yanhong,
>
> Thanks for submitting this. Again please don't change the author of
> the commits you cherry-picked from my tree. This is why we have the
> Co-developed-by: tag so you can mark that you added or in this case
> removed code.
This commit is not cherry-picked from your tree.
> I'd hoped you would still include the support for the JH7100 though.
>
If necessary, would include the support for the JH7100 in the next version.
> Also you seem to have changed the name of some of the functions.
> Please at least keep the prefix consistent if you do that. Now it's a
> mix of dwmac_starfive_, starfive_eth_ and starfive_eth_plat.
>
> On Thu, 1 Dec 2022 at 10:07, Yanhong Wang <[email protected]> wrote:
>>
>> This adds StarFive dwmac driver support on the StarFive JH7110 SoCs.
>>
>> Signed-off-by: Yanhong Wang <[email protected]>
>> ---
>> MAINTAINERS | 1 +
>> drivers/net/ethernet/stmicro/stmmac/Kconfig | 11 ++
>> drivers/net/ethernet/stmicro/stmmac/Makefile | 1 +
>> .../stmicro/stmmac/dwmac-starfive-plat.c | 147 ++++++++++++++++++
>> 4 files changed, 160 insertions(+)
>> create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
>>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 7eaaec8d3b96..36cb00cf860b 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -19610,6 +19610,7 @@ STARFIVE DWMAC GLUE LAYER
>> M: Yanhong Wang <[email protected]>
>> S: Maintained
>> F: Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml
>> +F: drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
>>
>> STARFIVE PINCTRL DRIVER
>> M: Emil Renner Berthing <[email protected]>
>> diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
>> index 31ff35174034..1e29cd3770b9 100644
>> --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
>> +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
>> @@ -235,6 +235,17 @@ config DWMAC_INTEL_PLAT
>> the stmmac device driver. This driver is used for the Intel Keem Bay
>> SoC.
>>
>> +config DWMAC_STARFIVE_PLAT
>
> Why did you add the _PLAT suffix? None of the other SoC wrappers have this..
The _PLAT suffix definition reference the other SoC,such as DWMAC_INTEL_PLAT.
>
>> + tristate "StarFive dwmac support"
>> + depends on OF && COMMON_CLK
>> + depends on STMMAC_ETH
>> + default SOC_STARFIVE
>> + help
>> + Support for ethernet controllers on StarFive RISC-V SoCs
>> +
>> + This selects the StarFive platform specific glue layer support for
>> + the stmmac device driver. This driver is used for StarFive RISC-V SoCs.
>> +
>> config DWMAC_VISCONTI
>> tristate "Toshiba Visconti DWMAC support"
>> default ARCH_VISCONTI
>> diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile
>> index d4e12e9ace4f..a63ab0ab5071 100644
>> --- a/drivers/net/ethernet/stmicro/stmmac/Makefile
>> +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
>> @@ -31,6 +31,7 @@ obj-$(CONFIG_DWMAC_DWC_QOS_ETH) += dwmac-dwc-qos-eth.o
>> obj-$(CONFIG_DWMAC_INTEL_PLAT) += dwmac-intel-plat.o
>> obj-$(CONFIG_DWMAC_GENERIC) += dwmac-generic.o
>> obj-$(CONFIG_DWMAC_IMX8) += dwmac-imx.o
>> +obj-$(CONFIG_DWMAC_STARFIVE_PLAT) += dwmac-starfive-plat.o
>> obj-$(CONFIG_DWMAC_VISCONTI) += dwmac-visconti.o
>> stmmac-platform-objs:= stmmac_platform.o
>> dwmac-altr-socfpga-objs := altr_tse_pcs.o dwmac-socfpga.o
>> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
>> new file mode 100644
>> index 000000000000..8fbf584d4e19
>> --- /dev/null
>> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
>> @@ -0,0 +1,147 @@
>> +// SPDX-License-Identifier: GPL-2.0+
>> +/*
>> + * StarFive DWMAC platform driver
>> + *
>> + * Copyright(C) 2022 StarFive Technology Co., Ltd.
>
> Hmm.. where did my copyright go?
>
>> + *
>> + */
>> +
>> +#include <linux/of_device.h>
>> +#include "stmmac_platform.h"
>> +
>> +struct starfive_dwmac {
>> + struct device *dev;
>> + struct clk *clk_tx;
>> + struct clk *clk_gtx;
>> + struct clk *clk_gtxc;
>> +};
>> +
>> +static void starfive_eth_fix_mac_speed(void *priv, unsigned int speed)
>> +{
>> + struct starfive_dwmac *dwmac = priv;
>> + unsigned long rate;
>> + int err;
>> +
>> + switch (speed) {
>> + case SPEED_1000:
>> + rate = 125000000;
>> + break;
>> + case SPEED_100:
>> + rate = 25000000;
>> + break;
>> + case SPEED_10:
>> + rate = 2500000;
>> + break;
>> + default:
>> + dev_err(dwmac->dev, "invalid speed %u\n", speed);
>> + return;
>> + }
>> +
>> + err = clk_set_rate(dwmac->clk_gtx, rate);
>> + if (err)
>> + dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
>> +}
>> +
>> +static void dwmac_starfive_clk_disable(void *clk)
>> +{
>> + clk_disable_unprepare(clk);
>> +}
>> +
>> +static int starfive_eth_plat_probe(struct platform_device *pdev)
>> +{
>> + struct plat_stmmacenet_data *plat_dat;
>> + struct stmmac_resources stmmac_res;
>> + struct starfive_dwmac *dwmac;
>> + int err;
>> +
>> + err = stmmac_get_platform_resources(pdev, &stmmac_res);
>> + if (err)
>> + return err;
>> +
>> + plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);
>> + if (IS_ERR(plat_dat)) {
>> + dev_err(&pdev->dev, "dt configuration failed\n");
>> + return PTR_ERR(plat_dat);
>> + }
>> +
>> + dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
>> + if (!dwmac)
>> + return -ENOMEM;
>> +
>> + dwmac->clk_tx = devm_clk_get(&pdev->dev, "tx");
>> + if (IS_ERR(dwmac->clk_tx))
>> + return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_tx),
>> + "error getting tx clock\n");
>> +
>> + err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
>> + dwmac->clk_tx);
>> + if (err)
>> + return err;
>> +
>> + err = clk_prepare_enable(dwmac->clk_tx);
>> + if (err)
>> + return dev_err_probe(&pdev->dev, err, "error enabling tx clock\n");
>> +
>> + dwmac->clk_gtx = devm_clk_get(&pdev->dev, "gtx");
>> + if (IS_ERR(dwmac->clk_gtx))
>> + return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_gtx),
>> + "error getting gtx clock\n");
>> +
>> + err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
>> + dwmac->clk_gtx);
>> + if (err)
>> + return err;
>> +
>> + err = clk_prepare_enable(dwmac->clk_gtx);
>> + if (err)
>> + return dev_err_probe(&pdev->dev, err, "error enabling gtx clock\n");
>
> I think the 3 calls above can be simplified to devm_clk_get_enabled().
I'll simplify it to devm_ clk_ get_ enabled() in the next version.
>
>> + dwmac->clk_gtxc = devm_clk_get(&pdev->dev, "gtxc");
>> + if (IS_ERR(dwmac->clk_gtxc))
>> + return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_gtxc),
>> + "error getting gtxc clock\n");
>> +
>> + err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
>> + dwmac->clk_gtxc);
>> + if (err)
>> + return err;
>> +
>> + err = clk_prepare_enable(dwmac->clk_gtxc);
>> + if (err)
>> + return dev_err_probe(&pdev->dev, err, "error enabling gtxc clock\n");
>
> Same here.
>
>> +
>> + dwmac->dev = &pdev->dev;
>> + plat_dat->fix_mac_speed = starfive_eth_fix_mac_speed;
>> + plat_dat->init = NULL;
>> + plat_dat->bsp_priv = dwmac;
>> + plat_dat->dma_cfg->dche = true;
>> +
>> + err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
>> + if (err) {
>> + stmmac_remove_config_dt(pdev, plat_dat);
>> + return err;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static const struct of_device_id starfive_eth_plat_match[] = {
>> + {.compatible = "starfive,dwmac"},
>> + { }
>> +};
>> +
>> +static struct platform_driver starfive_eth_plat_driver = {
>> + .probe = starfive_eth_plat_probe,
>> + .remove = stmmac_pltfr_remove,
>> + .driver = {
>> + .name = "starfive-eth-plat",
>> + .pm = &stmmac_pltfr_pm_ops,
>> + .of_match_table = starfive_eth_plat_match,
>> + },
>> +};
>> +
>> +module_platform_driver(starfive_eth_plat_driver);
>> +
>> +MODULE_LICENSE("GPL");
>> +MODULE_DESCRIPTION("StarFive DWMAC platform driver");
>
> Here you also seem to have removed me.
>
>> +MODULE_AUTHOR("Yanhong Wang <[email protected]>");
>> --
>> 2.17.1
>>
>>
>> _______________________________________________
>> linux-riscv mailing list
>> [email protected]
>> http://lists.infradead.org/mailman/listinfo/linux-riscv
On 2022/12/7 22:16, Emil Renner Berthing wrote:
> Hi Yanhong,
>
> Thanks for submitting this. Again please don't change the author of
> the commits you cherry-picked from my tree. This is why we have the
> Co-developed-by: tag so you can mark that you added or in this case
> removed code.
> I'd hoped you would still include the support for the JH7100 though.
>
Hi Emil,
Thank you for your suggestion. If the dwmac-starfive-plat driver supports JH7100 and JH7110, the dt-binding calls "starfive,jh71x0-dwmac.yaml", is this ok?
> Also you seem to have changed the name of some of the functions.
> Please at least keep the prefix consistent if you do that. Now it's a
> mix of dwmac_starfive_, starfive_eth_ and starfive_eth_plat.
>
I will named all the functions with starfive_eth_plat prefix in the next version.
> On Thu, 1 Dec 2022 at 10:07, Yanhong Wang <[email protected]> wrote:
>>
>> This adds StarFive dwmac driver support on the StarFive JH7110 SoCs.
>>
>> Signed-off-by: Yanhong Wang <[email protected]>
>> ---
>> MAINTAINERS | 1 +
>> drivers/net/ethernet/stmicro/stmmac/Kconfig | 11 ++
>> drivers/net/ethernet/stmicro/stmmac/Makefile | 1 +
>> .../stmicro/stmmac/dwmac-starfive-plat.c | 147 ++++++++++++++++++
>> 4 files changed, 160 insertions(+)
>> create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
>>
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 7eaaec8d3b96..36cb00cf860b 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -19610,6 +19610,7 @@ STARFIVE DWMAC GLUE LAYER
>> M: Yanhong Wang <[email protected]>
>> S: Maintained
>> F: Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml
>> +F: drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
>>
>> STARFIVE PINCTRL DRIVER
>> M: Emil Renner Berthing <[email protected]>
>> diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig b/drivers/net/ethernet/stmicro/stmmac/Kconfig
>> index 31ff35174034..1e29cd3770b9 100644
>> --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig
>> +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig
>> @@ -235,6 +235,17 @@ config DWMAC_INTEL_PLAT
>> the stmmac device driver. This driver is used for the Intel Keem Bay
>> SoC.
>>
>> +config DWMAC_STARFIVE_PLAT
>
> Why did you add the _PLAT suffix? None of the other SoC wrappers have this..
>
>> + tristate "StarFive dwmac support"
>> + depends on OF && COMMON_CLK
>> + depends on STMMAC_ETH
>> + default SOC_STARFIVE
>> + help
>> + Support for ethernet controllers on StarFive RISC-V SoCs
>> +
>> + This selects the StarFive platform specific glue layer support for
>> + the stmmac device driver. This driver is used for StarFive RISC-V SoCs.
>> +
>> config DWMAC_VISCONTI
>> tristate "Toshiba Visconti DWMAC support"
>> default ARCH_VISCONTI
>> diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile
>> index d4e12e9ace4f..a63ab0ab5071 100644
>> --- a/drivers/net/ethernet/stmicro/stmmac/Makefile
>> +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
>> @@ -31,6 +31,7 @@ obj-$(CONFIG_DWMAC_DWC_QOS_ETH) += dwmac-dwc-qos-eth.o
>> obj-$(CONFIG_DWMAC_INTEL_PLAT) += dwmac-intel-plat.o
>> obj-$(CONFIG_DWMAC_GENERIC) += dwmac-generic.o
>> obj-$(CONFIG_DWMAC_IMX8) += dwmac-imx.o
>> +obj-$(CONFIG_DWMAC_STARFIVE_PLAT) += dwmac-starfive-plat.o
>> obj-$(CONFIG_DWMAC_VISCONTI) += dwmac-visconti.o
>> stmmac-platform-objs:= stmmac_platform.o
>> dwmac-altr-socfpga-objs := altr_tse_pcs.o dwmac-socfpga.o
>> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
>> new file mode 100644
>> index 000000000000..8fbf584d4e19
>> --- /dev/null
>> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-starfive-plat.c
>> @@ -0,0 +1,147 @@
>> +// SPDX-License-Identifier: GPL-2.0+
>> +/*
>> + * StarFive DWMAC platform driver
>> + *
>> + * Copyright(C) 2022 StarFive Technology Co., Ltd.
>
> Hmm.. where did my copyright go?
>
>> + *
>> + */
>> +
>> +#include <linux/of_device.h>
>> +#include "stmmac_platform.h"
>> +
>> +struct starfive_dwmac {
>> + struct device *dev;
>> + struct clk *clk_tx;
>> + struct clk *clk_gtx;
>> + struct clk *clk_gtxc;
>> +};
>> +
>> +static void starfive_eth_fix_mac_speed(void *priv, unsigned int speed)
>> +{
>> + struct starfive_dwmac *dwmac = priv;
>> + unsigned long rate;
>> + int err;
>> +
>> + switch (speed) {
>> + case SPEED_1000:
>> + rate = 125000000;
>> + break;
>> + case SPEED_100:
>> + rate = 25000000;
>> + break;
>> + case SPEED_10:
>> + rate = 2500000;
>> + break;
>> + default:
>> + dev_err(dwmac->dev, "invalid speed %u\n", speed);
>> + return;
>> + }
>> +
>> + err = clk_set_rate(dwmac->clk_gtx, rate);
>> + if (err)
>> + dev_err(dwmac->dev, "failed to set tx rate %lu\n", rate);
>> +}
>> +
>> +static void dwmac_starfive_clk_disable(void *clk)
>> +{
>> + clk_disable_unprepare(clk);
>> +}
>> +
>> +static int starfive_eth_plat_probe(struct platform_device *pdev)
>> +{
>> + struct plat_stmmacenet_data *plat_dat;
>> + struct stmmac_resources stmmac_res;
>> + struct starfive_dwmac *dwmac;
>> + int err;
>> +
>> + err = stmmac_get_platform_resources(pdev, &stmmac_res);
>> + if (err)
>> + return err;
>> +
>> + plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);
>> + if (IS_ERR(plat_dat)) {
>> + dev_err(&pdev->dev, "dt configuration failed\n");
>> + return PTR_ERR(plat_dat);
>> + }
>> +
>> + dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
>> + if (!dwmac)
>> + return -ENOMEM;
>> +
>> + dwmac->clk_tx = devm_clk_get(&pdev->dev, "tx");
>> + if (IS_ERR(dwmac->clk_tx))
>> + return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_tx),
>> + "error getting tx clock\n");
>> +
>> + err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
>> + dwmac->clk_tx);
>> + if (err)
>> + return err;
>> +
>> + err = clk_prepare_enable(dwmac->clk_tx);
>> + if (err)
>> + return dev_err_probe(&pdev->dev, err, "error enabling tx clock\n");
>> +
>> + dwmac->clk_gtx = devm_clk_get(&pdev->dev, "gtx");
>> + if (IS_ERR(dwmac->clk_gtx))
>> + return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_gtx),
>> + "error getting gtx clock\n");
>> +
>> + err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
>> + dwmac->clk_gtx);
>> + if (err)
>> + return err;
>> +
>> + err = clk_prepare_enable(dwmac->clk_gtx);
>> + if (err)
>> + return dev_err_probe(&pdev->dev, err, "error enabling gtx clock\n");
>
> I think the 3 calls above can be simplified to devm_clk_get_enabled().
>
>> + dwmac->clk_gtxc = devm_clk_get(&pdev->dev, "gtxc");
>> + if (IS_ERR(dwmac->clk_gtxc))
>> + return dev_err_probe(&pdev->dev, PTR_ERR(dwmac->clk_gtxc),
>> + "error getting gtxc clock\n");
>> +
>> + err = devm_add_action(&pdev->dev, dwmac_starfive_clk_disable,
>> + dwmac->clk_gtxc);
>> + if (err)
>> + return err;
>> +
>> + err = clk_prepare_enable(dwmac->clk_gtxc);
>> + if (err)
>> + return dev_err_probe(&pdev->dev, err, "error enabling gtxc clock\n");
>
> Same here.
>
>> +
>> + dwmac->dev = &pdev->dev;
>> + plat_dat->fix_mac_speed = starfive_eth_fix_mac_speed;
>> + plat_dat->init = NULL;
>> + plat_dat->bsp_priv = dwmac;
>> + plat_dat->dma_cfg->dche = true;
>> +
>> + err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
>> + if (err) {
>> + stmmac_remove_config_dt(pdev, plat_dat);
>> + return err;
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +static const struct of_device_id starfive_eth_plat_match[] = {
>> + {.compatible = "starfive,dwmac"},
>> + { }
>> +};
>> +
>> +static struct platform_driver starfive_eth_plat_driver = {
>> + .probe = starfive_eth_plat_probe,
>> + .remove = stmmac_pltfr_remove,
>> + .driver = {
>> + .name = "starfive-eth-plat",
>> + .pm = &stmmac_pltfr_pm_ops,
>> + .of_match_table = starfive_eth_plat_match,
>> + },
>> +};
>> +
>> +module_platform_driver(starfive_eth_plat_driver);
>> +
>> +MODULE_LICENSE("GPL");
>> +MODULE_DESCRIPTION("StarFive DWMAC platform driver");
>
> Here you also seem to have removed me.
>
>> +MODULE_AUTHOR("Yanhong Wang <[email protected]>");
>> --
>> 2.17.1
>>
>>
>> _______________________________________________
>> linux-riscv mailing list
>> [email protected]
>> http://lists.infradead.org/mailman/listinfo/linux-riscv
On 2022/12/9 9:59, Ben Dooks wrote:
>
>
> On 2022-12-01 09:02, Yanhong Wang wrote:
>> Add "snps,dwmac-5.20" compatible string for 5.20 version that can avoid
>> to define some platform data in the glue layer.
>>
>> Signed-off-by: Emil Renner Berthing <[email protected]>
>> Signed-off-by: Yanhong Wang <[email protected]>
>> ---
>> drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
>> b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
>> index 50f6b4a14be4..cc3b701af802 100644
>> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
>> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
>> @@ -519,7 +519,8 @@ stmmac_probe_config_dt(struct platform_device
>> *pdev, u8 *mac)
>> if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
>> of_device_is_compatible(np, "snps,dwmac-4.10a") ||
>> of_device_is_compatible(np, "snps,dwmac-4.20a") ||
>> - of_device_is_compatible(np, "snps,dwmac-5.10a")) {
>> + of_device_is_compatible(np, "snps,dwmac-5.10a") ||
>> + of_device_is_compatible(np, "snps,dwmac-5.20")) {
>> plat->has_gmac4 = 1;
>> plat->has_gmac = 0;
>> plat->pmt = 1;
>
> out of interest, is the version of the ip autodetectable yet?
> also, we would be better off if having an if (version > 4) check if we use the standard snps ip block code headers
>
Yes, the version of the ip is autodetectable. It is also possible to use the standard "snps, dwmac-5.10a" definition on JH7110（has been tested on the VisionFive v2 boards and works normally）, do you have any better suggestions?
On 2022-12-01 09:02, Yanhong Wang wrote:
> Add "snps,dwmac-5.20" compatible string for 5.20 version that can avoid
> to define some platform data in the glue layer.
>
> Signed-off-by: Emil Renner Berthing <[email protected]>
> Signed-off-by: Yanhong Wang <[email protected]>
> ---
> drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> index 50f6b4a14be4..cc3b701af802 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> @@ -519,7 +519,8 @@ stmmac_probe_config_dt(struct platform_device
> *pdev, u8 *mac)
> if (of_device_is_compatible(np, "snps,dwmac-4.00") ||
> of_device_is_compatible(np, "snps,dwmac-4.10a") ||
> of_device_is_compatible(np, "snps,dwmac-4.20a") ||
> - of_device_is_compatible(np, "snps,dwmac-5.10a")) {
> + of_device_is_compatible(np, "snps,dwmac-5.10a") ||
> + of_device_is_compatible(np, "snps,dwmac-5.20")) {
> plat->has_gmac4 = 1;
> plat->has_gmac = 0;
> plat->pmt = 1;
out of interest, is the version of the ip autodetectable yet?
also, we would be better off if having an if (version > 4) check if we
use the standard snps ip block code headers