This patch serie adds support for Microchip lan966x serdes. The lan966x
device which contains this serdes has 8 interfaces, consisting of 2
copper transceivers, 3 Serdes and 2 RGMII interfaces and 2 of the
Serdes support QSGMII. The driver add the functionality of "muxing" the
interfaces to different switch ports.
The following table shows which interfaces can be supported by the port.
PortNumber Max Speed Ethernet interface options
0 1Gbps CuPHY, 1G SGMII or QSGMII
1 1Gbps CuPHY, 1G SGMII or QSGMII
2 2.5Gbps 2.5G SGMII, QSGMII, RGMII
3 2.5Gbps 2.5G SGMII, QSGMII, RGMII
4 2.5Gbps 2.5G SGMII, QSGMII
5 1Gbps QSGMII, RGMII
6 1Gbps QSGMII, RGMII
7 1Gbps QSGMII
v2->v3:
- remove unused includes
- add missing '...' in microchip,lan966x-serdes.yaml
- rename lan966x-serdes.h to phy-lan966x-serdes.h
- Rename CU->PHY and RG->RGMII
- update commit message for PATCH 2
v1->v2:
- replace the regmap with iomem
- update DT bindings
Horatiu Vultur (3):
dt-bindings: phy: Add lan966x-serdes binding
dt-bindings: phy: Add constants for lan966x serdes
phy: Add lan966x ethernet serdes PHY driver
.../phy/microchip,lan966x-serdes.yaml | 45 ++
drivers/phy/microchip/Kconfig | 8 +
drivers/phy/microchip/Makefile | 1 +
drivers/phy/microchip/lan966x_serdes.c | 540 ++++++++++++++++++
drivers/phy/microchip/lan966x_serdes_regs.h | 482 ++++++++++++++++
include/dt-bindings/phy/phy-lan966x-serdes.h | 14 +
6 files changed, 1090 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/microchip,lan966x-serdes.yaml
create mode 100644 drivers/phy/microchip/lan966x_serdes.c
create mode 100644 drivers/phy/microchip/lan966x_serdes_regs.h
create mode 100644 include/dt-bindings/phy/phy-lan966x-serdes.h
--
2.33.0
Add the Microchip lan966x ethernet serdes PHY driver for interfaces
available in the lan966x SoC.
Signed-off-by: Horatiu Vultur <[email protected]>
---
drivers/phy/microchip/Kconfig | 8 +
drivers/phy/microchip/Makefile | 1 +
drivers/phy/microchip/lan966x_serdes.c | 540 ++++++++++++++++++++
drivers/phy/microchip/lan966x_serdes_regs.h | 482 +++++++++++++++++
4 files changed, 1031 insertions(+)
create mode 100644 drivers/phy/microchip/lan966x_serdes.c
create mode 100644 drivers/phy/microchip/lan966x_serdes_regs.h
diff --git a/drivers/phy/microchip/Kconfig b/drivers/phy/microchip/Kconfig
index 3728a284bf64..38039ed0754c 100644
--- a/drivers/phy/microchip/Kconfig
+++ b/drivers/phy/microchip/Kconfig
@@ -11,3 +11,11 @@ config PHY_SPARX5_SERDES
depends on HAS_IOMEM
help
Enable this for support of the 10G/25G SerDes on Microchip Sparx5.
+
+config PHY_LAN966X_SERDES
+ tristate "SerDes PHY driver for Microchip LAN966X"
+ select GENERIC_PHY
+ depends on OF
+ depends on MFD_SYSCON
+ help
+ Enable this for supporting SerDes muxing with Microchip LAN966X
diff --git a/drivers/phy/microchip/Makefile b/drivers/phy/microchip/Makefile
index 7b98345712aa..fd73b87960a5 100644
--- a/drivers/phy/microchip/Makefile
+++ b/drivers/phy/microchip/Makefile
@@ -4,3 +4,4 @@
#
obj-$(CONFIG_PHY_SPARX5_SERDES) := sparx5_serdes.o
+obj-$(CONFIG_PHY_LAN966X_SERDES) := lan966x_serdes.o
diff --git a/drivers/phy/microchip/lan966x_serdes.c b/drivers/phy/microchip/lan966x_serdes.c
new file mode 100644
index 000000000000..e663bb9186a8
--- /dev/null
+++ b/drivers/phy/microchip/lan966x_serdes.c
@@ -0,0 +1,540 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/phy.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <dt-bindings/phy/phy-lan966x-serdes.h>
+#include "lan966x_serdes_regs.h"
+
+#define lan_offset_(id, tinst, tcnt, \
+ gbase, ginst, gcnt, gwidth, \
+ raddr, rinst, rcnt, rwidth) \
+ (gbase + ((ginst) * gwidth) + raddr + ((rinst) * rwidth))
+#define lan_offset(...) lan_offset_(__VA_ARGS__)
+
+static void lan_rmw_(u32 val, u32 mask, void __iomem *mem, u32 offset)
+{
+ u32 v;
+
+ v = readl(mem + offset);
+ v = (v & ~mask) | (val & mask);
+ writel(v, mem + offset);
+}
+
+#define lan_rmw(val, mask, reg, off) \
+ lan_rmw_(val, mask, reg, lan_offset(off))
+
+struct serdes_ctrl {
+ void __iomem *regs;
+ struct device *dev;
+ struct phy *phys[SERDES_MAX];
+ int ref125;
+};
+
+struct serdes_macro {
+ u8 idx;
+ int port;
+ struct serdes_ctrl *ctrl;
+ int speed;
+ phy_interface_t mode;
+};
+
+enum lan966x_sd6g40_mode {
+ LAN966X_SD6G40_MODE_QSGMII,
+ LAN966X_SD6G40_MODE_SGMII,
+};
+
+enum lan966x_sd6g40_ltx2rx {
+ LAN966X_SD6G40_TX2RX_LOOP_NONE,
+ LAN966X_SD6G40_LTX2RX
+};
+
+struct lan966x_sd6g40_setup_args {
+ enum lan966x_sd6g40_mode mode;
+ enum lan966x_sd6g40_ltx2rx tx2rx_loop;
+ bool txinvert;
+ bool rxinvert;
+ bool refclk125M;
+ bool mute;
+};
+
+struct lan966x_sd6g40_mode_args {
+ enum lan966x_sd6g40_mode mode;
+ u8 lane_10bit_sel;
+ u8 mpll_multiplier;
+ u8 ref_clkdiv2;
+ u8 tx_rate;
+ u8 rx_rate;
+};
+
+struct lan966x_sd6g40_setup {
+ u8 rx_term_en;
+ u8 lane_10bit_sel;
+ u8 tx_invert;
+ u8 rx_invert;
+ u8 mpll_multiplier;
+ u8 lane_loopbk_en;
+ u8 ref_clkdiv2;
+ u8 tx_rate;
+ u8 rx_rate;
+};
+
+static int lan966x_sd6g40_reg_cfg(struct serdes_macro *macro,
+ struct lan966x_sd6g40_setup *res_struct,
+ u32 idx)
+{
+ u32 value;
+
+ /* Note: SerDes HSIO is configured in 1G_LAN mode */
+ lan_rmw(HSIO_SD_CFG_LANE_10BIT_SEL(res_struct->lane_10bit_sel) |
+ HSIO_SD_CFG_RX_RATE(res_struct->rx_rate) |
+ HSIO_SD_CFG_TX_RATE(res_struct->tx_rate) |
+ HSIO_SD_CFG_TX_INVERT(res_struct->tx_invert) |
+ HSIO_SD_CFG_RX_INVERT(res_struct->rx_invert) |
+ HSIO_SD_CFG_LANE_LOOPBK_EN(res_struct->lane_loopbk_en) |
+ HSIO_SD_CFG_RX_RESET(0) |
+ HSIO_SD_CFG_TX_RESET(0),
+ HSIO_SD_CFG_LANE_10BIT_SEL_M |
+ HSIO_SD_CFG_RX_RATE_M |
+ HSIO_SD_CFG_TX_RATE_M |
+ HSIO_SD_CFG_TX_INVERT_M |
+ HSIO_SD_CFG_RX_INVERT_M |
+ HSIO_SD_CFG_LANE_LOOPBK_EN_M |
+ HSIO_SD_CFG_RX_RESET_M |
+ HSIO_SD_CFG_TX_RESET_M,
+ macro->ctrl->regs, HSIO_SD_CFG(idx));
+
+ lan_rmw(HSIO_MPLL_CFG_MPLL_MULTIPLIER(res_struct->mpll_multiplier) |
+ HSIO_MPLL_CFG_REF_CLKDIV2(res_struct->ref_clkdiv2),
+ HSIO_MPLL_CFG_MPLL_MULTIPLIER_M |
+ HSIO_MPLL_CFG_REF_CLKDIV2_M,
+ macro->ctrl->regs, HSIO_MPLL_CFG(idx));
+
+ lan_rmw(HSIO_SD_CFG_RX_TERM_EN(res_struct->rx_term_en),
+ HSIO_SD_CFG_RX_TERM_EN_M,
+ macro->ctrl->regs, HSIO_SD_CFG(idx));
+
+ lan_rmw(HSIO_MPLL_CFG_REF_SSP_EN(1),
+ HSIO_MPLL_CFG_REF_SSP_EN_M,
+ macro->ctrl->regs, HSIO_MPLL_CFG(idx));
+
+ usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
+
+ lan_rmw(HSIO_SD_CFG_PHY_RESET(0),
+ HSIO_SD_CFG_PHY_RESET_M,
+ macro->ctrl->regs, HSIO_SD_CFG(idx));
+
+ usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
+
+ lan_rmw(HSIO_MPLL_CFG_MPLL_EN(1),
+ HSIO_MPLL_CFG_MPLL_EN_M,
+ macro->ctrl->regs, HSIO_MPLL_CFG(idx));
+
+ usleep_range(7 * USEC_PER_MSEC, 8 * USEC_PER_MSEC);
+
+ value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
+ value = HSIO_SD_STAT_MPLL_STATE_X(value);
+ if (value != 0x1) {
+ pr_info("Unexpected sd_sd_stat[%u] mpll_state was 0x1 but is 0x%x\n",
+ idx, value);
+ return -EIO;
+ }
+
+ lan_rmw(HSIO_SD_CFG_TX_CM_EN(1),
+ HSIO_SD_CFG_TX_CM_EN_M,
+ macro->ctrl->regs, HSIO_SD_CFG(idx));
+
+ usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
+
+ value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
+ value = HSIO_SD_STAT_TX_CM_STATE_X(value);
+ if (value != 0x1) {
+ pr_info("Unexpected sd_sd_stat[%u] tx_cm_state was 0x1 but is 0x%x\n",
+ idx, value);
+ return -EIO;
+ }
+
+ lan_rmw(HSIO_SD_CFG_RX_PLL_EN(1) |
+ HSIO_SD_CFG_TX_EN(1),
+ HSIO_SD_CFG_RX_PLL_EN_M |
+ HSIO_SD_CFG_TX_EN_M,
+ macro->ctrl->regs, HSIO_SD_CFG(idx));
+
+ usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
+
+ /* Waiting for serdes 0 rx DPLL to lock... */
+ value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
+ value = HSIO_SD_STAT_RX_PLL_STATE_X(value);
+ if (value != 0x1) {
+ pr_info("Unexpected sd_sd_stat[%u] rx_pll_state was 0x1 but is 0x%x\n",
+ idx, value);
+ return -EIO;
+ }
+
+ /* Waiting for serdes 0 tx operational... */
+ value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
+ value = HSIO_SD_STAT_TX_STATE_X(value);
+ if (value != 0x1) {
+ pr_info("Unexpected sd_sd_stat[%u] tx_state was 0x1 but is 0x%x\n",
+ idx, value);
+ return -EIO;
+ }
+
+ lan_rmw(HSIO_SD_CFG_TX_DATA_EN(1) |
+ HSIO_SD_CFG_RX_DATA_EN(1),
+ HSIO_SD_CFG_TX_DATA_EN_M |
+ HSIO_SD_CFG_RX_DATA_EN_M,
+ macro->ctrl->regs, HSIO_SD_CFG(idx));
+
+ return 0;
+}
+
+static int lan966x_sd6g40_get_conf_from_mode(struct serdes_macro *macro,
+ enum lan966x_sd6g40_mode f_mode,
+ bool ref125M,
+ struct lan966x_sd6g40_mode_args *ret_val)
+{
+ switch (f_mode) {
+ case LAN966X_SD6G40_MODE_QSGMII:
+ ret_val->lane_10bit_sel = 0;
+ if (ref125M) {
+ ret_val->mpll_multiplier = 40;
+ ret_val->ref_clkdiv2 = 0x1;
+ ret_val->tx_rate = 0x0;
+ ret_val->rx_rate = 0x0;
+ } else {
+ ret_val->mpll_multiplier = 100;
+ ret_val->ref_clkdiv2 = 0x0;
+ ret_val->tx_rate = 0x0;
+ ret_val->rx_rate = 0x0;
+ }
+ break;
+ case LAN966X_SD6G40_MODE_SGMII:
+ ret_val->lane_10bit_sel = 1;
+ if (ref125M) {
+ ret_val->mpll_multiplier = macro->speed == SPEED_2500 ? 50 : 40;
+ ret_val->ref_clkdiv2 = 0x1;
+ ret_val->tx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
+ ret_val->rx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
+ } else {
+ ret_val->mpll_multiplier = macro->speed == SPEED_2500 ? 125 : 100;
+ ret_val->ref_clkdiv2 = 0x0;
+ ret_val->tx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
+ ret_val->rx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
+ }
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int lan966x_calc_sd6g40_setup_lane(struct serdes_macro *macro,
+ struct lan966x_sd6g40_setup_args config,
+ struct lan966x_sd6g40_setup *ret_val)
+{
+ struct lan966x_sd6g40_mode_args sd6g40_mode;
+ struct lan966x_sd6g40_mode_args *mode_args = &sd6g40_mode;
+ int ret;
+
+ ret = lan966x_sd6g40_get_conf_from_mode(macro, config.mode,
+ config.refclk125M, mode_args);
+ if (ret)
+ return ret;
+
+ ret_val->lane_10bit_sel = mode_args->lane_10bit_sel;
+ ret_val->rx_rate = mode_args->rx_rate;
+ ret_val->tx_rate = mode_args->tx_rate;
+ ret_val->mpll_multiplier = mode_args->mpll_multiplier;
+ ret_val->ref_clkdiv2 = mode_args->ref_clkdiv2;
+ ret_val->rx_term_en = 0;
+
+ if (config.tx2rx_loop == LAN966X_SD6G40_LTX2RX)
+ ret_val->lane_loopbk_en = 1;
+ else
+ ret_val->lane_loopbk_en = 0;
+
+ if (config.txinvert)
+ ret_val->tx_invert = 1;
+ else
+ ret_val->tx_invert = 0;
+
+ if (config.rxinvert)
+ ret_val->rx_invert = 1;
+ else
+ ret_val->rx_invert = 0;
+
+ return 0;
+}
+
+static int lan966x_sd6g40_setup_lane(struct serdes_macro *macro,
+ struct lan966x_sd6g40_setup_args config,
+ u32 idx)
+{
+ struct lan966x_sd6g40_setup calc_results;
+ int ret;
+
+ memset(&calc_results, 0x0, sizeof(calc_results));
+
+ ret = lan966x_calc_sd6g40_setup_lane(macro, config, &calc_results);
+ if (ret)
+ return ret;
+
+ return lan966x_sd6g40_reg_cfg(macro, &calc_results, idx);
+}
+
+static int lan966x_sd6g40_setup(struct serdes_macro *macro, u32 idx, int mode)
+{
+ struct lan966x_sd6g40_setup_args conf;
+
+ memset(&conf, 0x0, sizeof(conf));
+ conf.refclk125M = macro->ctrl->ref125;
+
+ if (mode == PHY_INTERFACE_MODE_QSGMII)
+ conf.mode = LAN966X_SD6G40_MODE_QSGMII;
+ else
+ conf.mode = LAN966X_SD6G40_MODE_SGMII;
+
+ return lan966x_sd6g40_setup_lane(macro, conf, idx);
+}
+
+struct serdes_mux {
+ u8 idx;
+ u8 port;
+ enum phy_mode mode;
+ int submode;
+ u32 mask;
+ u32 mux;
+};
+
+#define SERDES_MUX(_idx, _port, _mode, _submode, _mask, _mux) { \
+ .idx = _idx, \
+ .port = _port, \
+ .mode = _mode, \
+ .submode = _submode, \
+ .mask = _mask, \
+ .mux = _mux, \
+}
+
+#define SERDES_MUX_GMII(i, p, m, c) \
+ SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_GMII, m, c)
+#define SERDES_MUX_SGMII(i, p, m, c) \
+ SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_SGMII, m, c)
+#define SERDES_MUX_QSGMII(i, p, m, c) \
+ SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_QSGMII, m, c)
+#define SERDES_MUX_RGMII(i, p, m, c) \
+ SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_RGMII, m, c)
+
+static const struct serdes_mux lan966x_serdes_muxes[] = {
+ SERDES_MUX_QSGMII(SERDES6G(1), 0, HSIO_HW_CFG_QSGMII_ENA_M,
+ HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
+ SERDES_MUX_QSGMII(SERDES6G(1), 1, HSIO_HW_CFG_QSGMII_ENA_M,
+ HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
+ SERDES_MUX_QSGMII(SERDES6G(1), 2, HSIO_HW_CFG_QSGMII_ENA_M,
+ HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
+ SERDES_MUX_QSGMII(SERDES6G(1), 3, HSIO_HW_CFG_QSGMII_ENA_M,
+ HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
+
+ SERDES_MUX_QSGMII(SERDES6G(2), 4, HSIO_HW_CFG_QSGMII_ENA_M,
+ HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
+ SERDES_MUX_QSGMII(SERDES6G(2), 5, HSIO_HW_CFG_QSGMII_ENA_M,
+ HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
+ SERDES_MUX_QSGMII(SERDES6G(2), 6, HSIO_HW_CFG_QSGMII_ENA_M,
+ HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
+ SERDES_MUX_QSGMII(SERDES6G(2), 7, HSIO_HW_CFG_QSGMII_ENA_M,
+ HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
+
+ SERDES_MUX_GMII(PHY(0), 0, HSIO_HW_CFG_GMII_ENA_M,
+ HSIO_HW_CFG_GMII_ENA(BIT(0))),
+ SERDES_MUX_GMII(PHY(1), 1, HSIO_HW_CFG_GMII_ENA_M,
+ HSIO_HW_CFG_GMII_ENA(BIT(1))),
+
+ SERDES_MUX_SGMII(SERDES6G(0), 0, HSIO_HW_CFG_SD6G_0_CFG_M, 0),
+ SERDES_MUX_SGMII(SERDES6G(1), 1, HSIO_HW_CFG_SD6G_1_CFG_M, 0),
+ SERDES_MUX_SGMII(SERDES6G(0), 2, HSIO_HW_CFG_SD6G_0_CFG_M,
+ HSIO_HW_CFG_SD6G_0_CFG(1)),
+ SERDES_MUX_SGMII(SERDES6G(1), 3, HSIO_HW_CFG_SD6G_1_CFG_M,
+ HSIO_HW_CFG_SD6G_1_CFG(1)),
+
+ SERDES_MUX_RGMII(RGMII(0), 2, HSIO_HW_CFG_RGMII_0_CFG_M |
+ HSIO_HW_CFG_RGMII_ENA_M,
+ HSIO_HW_CFG_RGMII_0_CFG(BIT(0)) |
+ HSIO_HW_CFG_RGMII_ENA(BIT(0))),
+ SERDES_MUX_RGMII(RGMII(1), 3, HSIO_HW_CFG_RGMII_1_CFG_M |
+ HSIO_HW_CFG_RGMII_ENA_M,
+ HSIO_HW_CFG_RGMII_1_CFG(BIT(0)) |
+ HSIO_HW_CFG_RGMII_ENA(BIT(1))),
+ SERDES_MUX_RGMII(RGMII(0), 5, HSIO_HW_CFG_RGMII_0_CFG_M |
+ HSIO_HW_CFG_RGMII_ENA_M,
+ HSIO_HW_CFG_RGMII_0_CFG(BIT(0)) |
+ HSIO_HW_CFG_RGMII_ENA(BIT(0))),
+ SERDES_MUX_RGMII(RGMII(1), 6, HSIO_HW_CFG_RGMII_1_CFG_M |
+ HSIO_HW_CFG_RGMII_ENA_M,
+ HSIO_HW_CFG_RGMII_1_CFG(BIT(0)) |
+ HSIO_HW_CFG_RGMII_ENA(BIT(1))),
+};
+
+static int serdes_set_mode(struct phy *phy, enum phy_mode mode, int submode)
+{
+ struct serdes_macro *macro = phy_get_drvdata(phy);
+ unsigned int i;
+ int val;
+
+ /* As of now only PHY_MODE_ETHERNET is supported */
+ if (mode != PHY_MODE_ETHERNET)
+ return -EOPNOTSUPP;
+
+ for (i = 0; i < ARRAY_SIZE(lan966x_serdes_muxes); i++) {
+ if (macro->idx != lan966x_serdes_muxes[i].idx ||
+ mode != lan966x_serdes_muxes[i].mode ||
+ submode != lan966x_serdes_muxes[i].submode ||
+ macro->port != lan966x_serdes_muxes[i].port)
+ continue;
+
+ val = readl(macro->ctrl->regs + lan_offset(HSIO_HW_CFG));
+ val |= lan966x_serdes_muxes[i].mux;
+ lan_rmw(val, lan966x_serdes_muxes[i].mask,
+ macro->ctrl->regs, HSIO_HW_CFG);
+
+ macro->mode = lan966x_serdes_muxes[i].submode;
+
+ if (macro->idx < PHY_MAX)
+ return 0;
+
+ if (macro->idx < SERDES6G_MAX)
+ return lan966x_sd6g40_setup(macro,
+ macro->idx - (PHY_MAX + 1),
+ macro->mode);
+
+ if (macro->idx < RGMII_MAX)
+ return 0;
+
+ return -EOPNOTSUPP;
+ }
+
+ return -EINVAL;
+}
+
+static int serdes_set_speed(struct phy *phy, int speed)
+{
+ struct serdes_macro *macro = phy_get_drvdata(phy);
+
+ macro->speed = speed;
+
+ return lan966x_sd6g40_setup(macro, macro->idx - (PHY_MAX + 1),
+ macro->mode);
+}
+
+static const struct phy_ops serdes_ops = {
+ .set_mode = serdes_set_mode,
+ .set_speed = serdes_set_speed,
+ .owner = THIS_MODULE,
+};
+
+static struct phy *serdes_simple_xlate(struct device *dev,
+ struct of_phandle_args *args)
+{
+ struct serdes_ctrl *ctrl = dev_get_drvdata(dev);
+ unsigned int port, idx, i;
+
+ if (args->args_count != 2)
+ return ERR_PTR(-EINVAL);
+
+ port = args->args[0];
+ idx = args->args[1];
+
+ for (i = 0; i < SERDES_MAX; i++) {
+ struct serdes_macro *macro = phy_get_drvdata(ctrl->phys[i]);
+
+ if (idx != macro->idx)
+ continue;
+
+ macro->port = port;
+ return ctrl->phys[i];
+ }
+
+ return ERR_PTR(-ENODEV);
+}
+
+static int serdes_phy_create(struct serdes_ctrl *ctrl, u8 idx, struct phy **phy)
+{
+ struct serdes_macro *macro;
+
+ *phy = devm_phy_create(ctrl->dev, NULL, &serdes_ops);
+ if (IS_ERR(*phy))
+ return PTR_ERR(*phy);
+
+ macro = devm_kzalloc(ctrl->dev, sizeof(*macro), GFP_KERNEL);
+ if (!macro)
+ return -ENOMEM;
+
+ macro->idx = idx;
+ macro->ctrl = ctrl;
+ macro->speed = SPEED_1000;
+ macro->port = -1;
+
+ phy_set_drvdata(*phy, macro);
+
+ return 0;
+}
+
+static int serdes_probe(struct platform_device *pdev)
+{
+ struct phy_provider *provider;
+ struct serdes_ctrl *ctrl;
+ void __iomem *hw_stat;
+ unsigned int i;
+ u32 val;
+ int ret;
+
+ ctrl = devm_kzalloc(&pdev->dev, sizeof(*ctrl), GFP_KERNEL);
+ if (!ctrl)
+ return -ENOMEM;
+
+ ctrl->dev = &pdev->dev;
+ ctrl->regs = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
+ if (IS_ERR(ctrl->regs))
+ return PTR_ERR(ctrl->regs);
+
+ hw_stat = devm_platform_get_and_ioremap_resource(pdev, 1, NULL);
+ if (IS_ERR(hw_stat))
+ return PTR_ERR(hw_stat);
+
+ for (i = 0; i < SERDES_MAX; i++) {
+ ret = serdes_phy_create(ctrl, i, &ctrl->phys[i]);
+ if (ret)
+ return ret;
+ }
+
+ val = readl(hw_stat);
+ val = (GENMASK(4, 3) & val) >> 3;
+ ctrl->ref125 = (val == 1 || val == 2);
+
+ dev_set_drvdata(&pdev->dev, ctrl);
+
+ provider = devm_of_phy_provider_register(ctrl->dev,
+ serdes_simple_xlate);
+
+ return PTR_ERR_OR_ZERO(provider);
+}
+
+static const struct of_device_id serdes_ids[] = {
+ { .compatible = "microchip,lan966x-serdes", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, serdes_ids);
+
+static struct platform_driver mscc_lan966x_serdes = {
+ .probe = serdes_probe,
+ .driver = {
+ .name = "microchip,lan966x-serdes",
+ .of_match_table = of_match_ptr(serdes_ids),
+ },
+};
+
+module_platform_driver(mscc_lan966x_serdes);
diff --git a/drivers/phy/microchip/lan966x_serdes_regs.h b/drivers/phy/microchip/lan966x_serdes_regs.h
new file mode 100644
index 000000000000..c3d3d16c1e97
--- /dev/null
+++ b/drivers/phy/microchip/lan966x_serdes_regs.h
@@ -0,0 +1,482 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Microchip LAN966x Switch driver
+ *
+ * License: Dual MIT/GPL
+ * Copyright (c) 2020 Microchip Technology Inc.
+ */
+
+/* This file is autogenerated by cml-utils 2021-05-12 15:48:55 +0200.
+ * Commit ID: dbe188f718027a2c414b90d45f152b73468cbc5c (dirty)
+ */
+
+#ifndef _LAN966X_HSIO_REGS_H_
+#define _LAN966X_HSIO_REGS_H_
+
+#include <linux/bitops.h>
+
+#define LAN966X_BUILD_ID_REG GCB_BUILDID
+enum lan966x_target {
+ TARGET_HSIO = 32,
+ NUM_TARGETS = 66
+};
+
+#define __REG(...) __VA_ARGS__
+
+/* HSIO:SYNC_ETH_CFG:SYNC_ETH_CFG */
+#define HSIO_SYNC_ETH_CFG(r) __REG(TARGET_HSIO,\
+ 0, 1, 0, 0, 1, 8, 0, r, 2, 4)
+
+#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_SRC(x) (((x) << 4) & GENMASK(6, 4))
+#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_SRC_M GENMASK(6, 4)
+#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_SRC_X(x) (((x) & GENMASK(6, 4)) >> 4)
+
+#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_DIV(x) (((x) << 1) & GENMASK(3, 1))
+#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_DIV_M GENMASK(3, 1)
+#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_DIV_X(x) (((x) & GENMASK(3, 1)) >> 1)
+
+#define HSIO_SYNC_ETH_CFG_RECO_CLK_ENA(x) ((x) & GENMASK(0, 0))
+#define HSIO_SYNC_ETH_CFG_RECO_CLK_ENA_M GENMASK(0, 0)
+#define HSIO_SYNC_ETH_CFG_RECO_CLK_ENA_X(x) ((x) & GENMASK(0, 0))
+
+/* HSIO:SD:SD_CFG */
+#define HSIO_SD_CFG(g) __REG(TARGET_HSIO,\
+ 0, 1, 8, g, 3, 32, 0, 0, 1, 4)
+
+#define HSIO_SD_CFG_TEST_POWERDOWN(x) (((x) << 28) & GENMASK(28, 28))
+#define HSIO_SD_CFG_TEST_POWERDOWN_M GENMASK(28, 28)
+#define HSIO_SD_CFG_TEST_POWERDOWN_X(x) (((x) & GENMASK(28, 28)) >> 28)
+
+#define HSIO_SD_CFG_PHY_RESET(x) (((x) << 27) & GENMASK(27, 27))
+#define HSIO_SD_CFG_PHY_RESET_M GENMASK(27, 27)
+#define HSIO_SD_CFG_PHY_RESET_X(x) (((x) & GENMASK(27, 27)) >> 27)
+
+#define HSIO_SD_CFG_RX_LOS_FILT_CNT(x) (((x) << 20) & GENMASK(26, 20))
+#define HSIO_SD_CFG_RX_LOS_FILT_CNT_M GENMASK(26, 20)
+#define HSIO_SD_CFG_RX_LOS_FILT_CNT_X(x) (((x) & GENMASK(26, 20)) >> 20)
+
+#define HSIO_SD_CFG_TX_VBOOST_EN(x) (((x) << 19) & GENMASK(19, 19))
+#define HSIO_SD_CFG_TX_VBOOST_EN_M GENMASK(19, 19)
+#define HSIO_SD_CFG_TX_VBOOST_EN_X(x) (((x) & GENMASK(19, 19)) >> 19)
+
+#define HSIO_SD_CFG_TX_RESET(x) (((x) << 18) & GENMASK(18, 18))
+#define HSIO_SD_CFG_TX_RESET_M GENMASK(18, 18)
+#define HSIO_SD_CFG_TX_RESET_X(x) (((x) & GENMASK(18, 18)) >> 18)
+
+#define HSIO_SD_CFG_TX_RATE(x) (((x) << 16) & GENMASK(17, 16))
+#define HSIO_SD_CFG_TX_RATE_M GENMASK(17, 16)
+#define HSIO_SD_CFG_TX_RATE_X(x) (((x) & GENMASK(17, 16)) >> 16)
+
+#define HSIO_SD_CFG_TX_INVERT(x) (((x) << 15) & GENMASK(15, 15))
+#define HSIO_SD_CFG_TX_INVERT_M GENMASK(15, 15)
+#define HSIO_SD_CFG_TX_INVERT_X(x) (((x) & GENMASK(15, 15)) >> 15)
+
+#define HSIO_SD_CFG_TX_EN(x) (((x) << 14) & GENMASK(14, 14))
+#define HSIO_SD_CFG_TX_EN_M GENMASK(14, 14)
+#define HSIO_SD_CFG_TX_EN_X(x) (((x) & GENMASK(14, 14)) >> 14)
+
+#define HSIO_SD_CFG_TX_DETECT_RX_REQ(x) (((x) << 13) & GENMASK(13, 13))
+#define HSIO_SD_CFG_TX_DETECT_RX_REQ_M GENMASK(13, 13)
+#define HSIO_SD_CFG_TX_DETECT_RX_REQ_X(x) (((x) & GENMASK(13, 13)) >> 13)
+
+#define HSIO_SD_CFG_TX_DATA_EN(x) (((x) << 12) & GENMASK(12, 12))
+#define HSIO_SD_CFG_TX_DATA_EN_M GENMASK(12, 12)
+#define HSIO_SD_CFG_TX_DATA_EN_X(x) (((x) & GENMASK(12, 12)) >> 12)
+
+#define HSIO_SD_CFG_TX_CM_EN(x) (((x) << 11) & GENMASK(11, 11))
+#define HSIO_SD_CFG_TX_CM_EN_M GENMASK(11, 11)
+#define HSIO_SD_CFG_TX_CM_EN_X(x) (((x) & GENMASK(11, 11)) >> 11)
+
+#define HSIO_SD_CFG_LANE_10BIT_SEL(x) (((x) << 10) & GENMASK(10, 10))
+#define HSIO_SD_CFG_LANE_10BIT_SEL_M GENMASK(10, 10)
+#define HSIO_SD_CFG_LANE_10BIT_SEL_X(x) (((x) & GENMASK(10, 10)) >> 10)
+
+#define HSIO_SD_CFG_RX_TERM_EN(x) (((x) << 9) & GENMASK(9, 9))
+#define HSIO_SD_CFG_RX_TERM_EN_M GENMASK(9, 9)
+#define HSIO_SD_CFG_RX_TERM_EN_X(x) (((x) & GENMASK(9, 9)) >> 9)
+
+#define HSIO_SD_CFG_RX_RESET(x) (((x) << 8) & GENMASK(8, 8))
+#define HSIO_SD_CFG_RX_RESET_M GENMASK(8, 8)
+#define HSIO_SD_CFG_RX_RESET_X(x) (((x) & GENMASK(8, 8)) >> 8)
+
+#define HSIO_SD_CFG_RX_RATE(x) (((x) << 6) & GENMASK(7, 6))
+#define HSIO_SD_CFG_RX_RATE_M GENMASK(7, 6)
+#define HSIO_SD_CFG_RX_RATE_X(x) (((x) & GENMASK(7, 6)) >> 6)
+
+#define HSIO_SD_CFG_RX_PLL_EN(x) (((x) << 5) & GENMASK(5, 5))
+#define HSIO_SD_CFG_RX_PLL_EN_M GENMASK(5, 5)
+#define HSIO_SD_CFG_RX_PLL_EN_X(x) (((x) & GENMASK(5, 5)) >> 5)
+
+#define HSIO_SD_CFG_RX_LOS_EN(x) (((x) << 4) & GENMASK(4, 4))
+#define HSIO_SD_CFG_RX_LOS_EN_M GENMASK(4, 4)
+#define HSIO_SD_CFG_RX_LOS_EN_X(x) (((x) & GENMASK(4, 4)) >> 4)
+
+#define HSIO_SD_CFG_RX_INVERT(x) (((x) << 3) & GENMASK(3, 3))
+#define HSIO_SD_CFG_RX_INVERT_M GENMASK(3, 3)
+#define HSIO_SD_CFG_RX_INVERT_X(x) (((x) & GENMASK(3, 3)) >> 3)
+
+#define HSIO_SD_CFG_RX_DATA_EN(x) (((x) << 2) & GENMASK(2, 2))
+#define HSIO_SD_CFG_RX_DATA_EN_M GENMASK(2, 2)
+#define HSIO_SD_CFG_RX_DATA_EN_X(x) (((x) & GENMASK(2, 2)) >> 2)
+
+#define HSIO_SD_CFG_RX_ALIGN_EN(x) (((x) << 1) & GENMASK(1, 1))
+#define HSIO_SD_CFG_RX_ALIGN_EN_M GENMASK(1, 1)
+#define HSIO_SD_CFG_RX_ALIGN_EN_X(x) (((x) & GENMASK(1, 1)) >> 1)
+
+#define HSIO_SD_CFG_LANE_LOOPBK_EN(x) ((x) & GENMASK(0, 0))
+#define HSIO_SD_CFG_LANE_LOOPBK_EN_M GENMASK(0, 0)
+#define HSIO_SD_CFG_LANE_LOOPBK_EN_X(x) ((x) & GENMASK(0, 0))
+
+/* HSIO:SD:SD_CFG2 */
+#define HSIO_SD_CFG2(g) __REG(TARGET_HSIO,\
+ 0, 1, 8, g, 3, 32, 4, 0, 1, 4)
+
+#define HSIO_SD_CFG2_RX_EQ(x) (((x) << 25) & GENMASK(27, 25))
+#define HSIO_SD_CFG2_RX_EQ_M GENMASK(27, 25)
+#define HSIO_SD_CFG2_RX_EQ_X(x) (((x) & GENMASK(27, 25)) >> 25)
+
+#define HSIO_SD_CFG2_TX_TERM_OFFSET(x) (((x) << 20) & GENMASK(24, 20))
+#define HSIO_SD_CFG2_TX_TERM_OFFSET_M GENMASK(24, 20)
+#define HSIO_SD_CFG2_TX_TERM_OFFSET_X(x) (((x) & GENMASK(24, 20)) >> 20)
+
+#define HSIO_SD_CFG2_TX_VBOOST_LVL(x) (((x) << 17) & GENMASK(19, 17))
+#define HSIO_SD_CFG2_TX_VBOOST_LVL_M GENMASK(19, 17)
+#define HSIO_SD_CFG2_TX_VBOOST_LVL_X(x) (((x) & GENMASK(19, 17)) >> 17)
+
+#define HSIO_SD_CFG2_LOS_BIAS(x) (((x) << 14) & GENMASK(16, 14))
+#define HSIO_SD_CFG2_LOS_BIAS_M GENMASK(16, 14)
+#define HSIO_SD_CFG2_LOS_BIAS_X(x) (((x) & GENMASK(16, 14)) >> 14)
+
+#define HSIO_SD_CFG2_TX_AMPLITUDE(x) (((x) << 7) & GENMASK(13, 7))
+#define HSIO_SD_CFG2_TX_AMPLITUDE_M GENMASK(13, 7)
+#define HSIO_SD_CFG2_TX_AMPLITUDE_X(x) (((x) & GENMASK(13, 7)) >> 7)
+
+#define HSIO_SD_CFG2_TX_PREEMPH(x) ((x) & GENMASK(6, 0))
+#define HSIO_SD_CFG2_TX_PREEMPH_M GENMASK(6, 0)
+#define HSIO_SD_CFG2_TX_PREEMPH_X(x) ((x) & GENMASK(6, 0))
+
+/* HSIO:SD:MPLL_CFG */
+#define HSIO_MPLL_CFG(g) __REG(TARGET_HSIO,\
+ 0, 1, 8, g, 3, 32, 8, 0, 1, 4)
+
+#define HSIO_MPLL_CFG_REF_SSP_EN(x) (((x) << 18) & GENMASK(18, 18))
+#define HSIO_MPLL_CFG_REF_SSP_EN_M GENMASK(18, 18)
+#define HSIO_MPLL_CFG_REF_SSP_EN_X(x) (((x) & GENMASK(18, 18)) >> 18)
+
+#define HSIO_MPLL_CFG_REF_CLKDIV2(x) (((x) << 17) & GENMASK(17, 17))
+#define HSIO_MPLL_CFG_REF_CLKDIV2_M GENMASK(17, 17)
+#define HSIO_MPLL_CFG_REF_CLKDIV2_X(x) (((x) & GENMASK(17, 17)) >> 17)
+
+#define HSIO_MPLL_CFG_MPLL_EN(x) (((x) << 16) & GENMASK(16, 16))
+#define HSIO_MPLL_CFG_MPLL_EN_M GENMASK(16, 16)
+#define HSIO_MPLL_CFG_MPLL_EN_X(x) (((x) & GENMASK(16, 16)) >> 16)
+
+#define HSIO_MPLL_CFG_SSC_REF_CLK_SEL(x) (((x) << 7) & GENMASK(15, 7))
+#define HSIO_MPLL_CFG_SSC_REF_CLK_SEL_M GENMASK(15, 7)
+#define HSIO_MPLL_CFG_SSC_REF_CLK_SEL_X(x) (((x) & GENMASK(15, 7)) >> 7)
+
+#define HSIO_MPLL_CFG_MPLL_MULTIPLIER(x) ((x) & GENMASK(6, 0))
+#define HSIO_MPLL_CFG_MPLL_MULTIPLIER_M GENMASK(6, 0)
+#define HSIO_MPLL_CFG_MPLL_MULTIPLIER_X(x) ((x) & GENMASK(6, 0))
+
+/* HSIO:SD:SD_STAT */
+#define HSIO_SD_STAT(g) __REG(TARGET_HSIO,\
+ 0, 1, 8, g, 3, 32, 12, 0, 1, 4)
+
+#define HSIO_SD_STAT_MPLL_STATE(x) (((x) << 6) & GENMASK(6, 6))
+#define HSIO_SD_STAT_MPLL_STATE_M GENMASK(6, 6)
+#define HSIO_SD_STAT_MPLL_STATE_X(x) (((x) & GENMASK(6, 6)) >> 6)
+
+#define HSIO_SD_STAT_TX_STATE(x) (((x) << 5) & GENMASK(5, 5))
+#define HSIO_SD_STAT_TX_STATE_M GENMASK(5, 5)
+#define HSIO_SD_STAT_TX_STATE_X(x) (((x) & GENMASK(5, 5)) >> 5)
+
+#define HSIO_SD_STAT_TX_DETECT_RX_RESULT(x) (((x) << 4) & GENMASK(4, 4))
+#define HSIO_SD_STAT_TX_DETECT_RX_RESULT_M GENMASK(4, 4)
+#define HSIO_SD_STAT_TX_DETECT_RX_RESULT_X(x) (((x) & GENMASK(4, 4)) >> 4)
+
+#define HSIO_SD_STAT_TX_DETECT_RX_ACK(x) (((x) << 3) & GENMASK(3, 3))
+#define HSIO_SD_STAT_TX_DETECT_RX_ACK_M GENMASK(3, 3)
+#define HSIO_SD_STAT_TX_DETECT_RX_ACK_X(x) (((x) & GENMASK(3, 3)) >> 3)
+
+#define HSIO_SD_STAT_TX_CM_STATE(x) (((x) << 2) & GENMASK(2, 2))
+#define HSIO_SD_STAT_TX_CM_STATE_M GENMASK(2, 2)
+#define HSIO_SD_STAT_TX_CM_STATE_X(x) (((x) & GENMASK(2, 2)) >> 2)
+
+#define HSIO_SD_STAT_RX_VALID(x) (((x) << 1) & GENMASK(1, 1))
+#define HSIO_SD_STAT_RX_VALID_M GENMASK(1, 1)
+#define HSIO_SD_STAT_RX_VALID_X(x) (((x) & GENMASK(1, 1)) >> 1)
+
+#define HSIO_SD_STAT_RX_PLL_STATE(x) ((x) & GENMASK(0, 0))
+#define HSIO_SD_STAT_RX_PLL_STATE_M GENMASK(0, 0)
+#define HSIO_SD_STAT_RX_PLL_STATE_X(x) ((x) & GENMASK(0, 0))
+
+/* HSIO:SD:CR_ACCESS */
+#define HSIO_CR_ACCESS(g) __REG(TARGET_HSIO,\
+ 0, 1, 8, g, 3, 32, 16, 0, 1, 4)
+
+#define HSIO_CR_ACCESS_WRITE(x) (((x) << 19) & GENMASK(19, 19))
+#define HSIO_CR_ACCESS_WRITE_M GENMASK(19, 19)
+#define HSIO_CR_ACCESS_WRITE_X(x) (((x) & GENMASK(19, 19)) >> 19)
+
+#define HSIO_CR_ACCESS_READ(x) (((x) << 18) & GENMASK(18, 18))
+#define HSIO_CR_ACCESS_READ_M GENMASK(18, 18)
+#define HSIO_CR_ACCESS_READ_X(x) (((x) & GENMASK(18, 18)) >> 18)
+
+#define HSIO_CR_ACCESS_CAP_DATA(x) (((x) << 17) & GENMASK(17, 17))
+#define HSIO_CR_ACCESS_CAP_DATA_M GENMASK(17, 17)
+#define HSIO_CR_ACCESS_CAP_DATA_X(x) (((x) & GENMASK(17, 17)) >> 17)
+
+#define HSIO_CR_ACCESS_CAP_ADDR(x) (((x) << 16) & GENMASK(16, 16))
+#define HSIO_CR_ACCESS_CAP_ADDR_M GENMASK(16, 16)
+#define HSIO_CR_ACCESS_CAP_ADDR_X(x) (((x) & GENMASK(16, 16)) >> 16)
+
+#define HSIO_CR_ACCESS_DATA_IN(x) ((x) & GENMASK(15, 0))
+#define HSIO_CR_ACCESS_DATA_IN_M GENMASK(15, 0)
+#define HSIO_CR_ACCESS_DATA_IN_X(x) ((x) & GENMASK(15, 0))
+
+/* HSIO:SD:CR_OUTPUT */
+#define HSIO_CR_OUTPUT(g) __REG(TARGET_HSIO,\
+ 0, 1, 8, g, 3, 32, 20, 0, 1, 4)
+
+#define HSIO_CR_OUTPUT_ACK(x) (((x) << 16) & GENMASK(16, 16))
+#define HSIO_CR_OUTPUT_ACK_M GENMASK(16, 16)
+#define HSIO_CR_OUTPUT_ACK_X(x) (((x) & GENMASK(16, 16)) >> 16)
+
+#define HSIO_CR_OUTPUT_DATA_OUT(x) ((x) & GENMASK(15, 0))
+#define HSIO_CR_OUTPUT_DATA_OUT_M GENMASK(15, 0)
+#define HSIO_CR_OUTPUT_DATA_OUT_X(x) ((x) & GENMASK(15, 0))
+
+/* HSIO:SD:SYNC_ETH_SD_CFG */
+#define HSIO_SYNC_ETH_SD_CFG(g) __REG(TARGET_HSIO,\
+ 0, 1, 8, g, 3, 32, 24, 0, 1, 4)
+
+#define HSIO_SYNC_ETH_SD_CFG_SD_RECO_CLK_DIV(x) (((x) << 4) & GENMASK(5, 4))
+#define HSIO_SYNC_ETH_SD_CFG_SD_RECO_CLK_DIV_M GENMASK(5, 4)
+#define HSIO_SYNC_ETH_SD_CFG_SD_RECO_CLK_DIV_X(x) (((x) & GENMASK(5, 4)) >> 4)
+
+#define HSIO_SYNC_ETH_SD_CFG_SD_LINK_STAT_ENA(x) (((x) << 1) & GENMASK(1, 1))
+#define HSIO_SYNC_ETH_SD_CFG_SD_LINK_STAT_ENA_M GENMASK(1, 1)
+#define HSIO_SYNC_ETH_SD_CFG_SD_LINK_STAT_ENA_X(x) (((x) & GENMASK(1, 1)) >> 1)
+
+#define HSIO_SYNC_ETH_SD_CFG_SD_AUTO_SQUELCH_ENA(x) ((x) & GENMASK(0, 0))
+#define HSIO_SYNC_ETH_SD_CFG_SD_AUTO_SQUELCH_ENA_M GENMASK(0, 0)
+#define HSIO_SYNC_ETH_SD_CFG_SD_AUTO_SQUELCH_ENA_X(x) ((x) & GENMASK(0, 0))
+
+/* HSIO:SD:SIGDET_CFG */
+#define HSIO_SIGDET_CFG(g) __REG(TARGET_HSIO,\
+ 0, 1, 8, g, 3, 32, 28, 0, 1, 4)
+
+#define HSIO_SIGDET_CFG_SD_SEL(x) (((x) << 2) & GENMASK(2, 2))
+#define HSIO_SIGDET_CFG_SD_SEL_M GENMASK(2, 2)
+#define HSIO_SIGDET_CFG_SD_SEL_X(x) (((x) & GENMASK(2, 2)) >> 2)
+
+#define HSIO_SIGDET_CFG_SD_POL(x) (((x) << 1) & GENMASK(1, 1))
+#define HSIO_SIGDET_CFG_SD_POL_M GENMASK(1, 1)
+#define HSIO_SIGDET_CFG_SD_POL_X(x) (((x) & GENMASK(1, 1)) >> 1)
+
+#define HSIO_SIGDET_CFG_SD_ENA(x) ((x) & GENMASK(0, 0))
+#define HSIO_SIGDET_CFG_SD_ENA_M GENMASK(0, 0)
+#define HSIO_SIGDET_CFG_SD_ENA_X(x) ((x) & GENMASK(0, 0))
+
+/* HSIO:HW_CFGSTAT:HW_CFG */
+#define HSIO_HW_CFG __REG(TARGET_HSIO,\
+ 0, 1, 104, 0, 1, 52, 0, 0, 1, 4)
+
+#define HSIO_HW_CFG_RGMII_1_CFG(x) (((x) << 15) & GENMASK(15, 15))
+#define HSIO_HW_CFG_RGMII_1_CFG_M GENMASK(15, 15)
+#define HSIO_HW_CFG_RGMII_1_CFG_X(x) (((x) & GENMASK(15, 15)) >> 15)
+
+#define HSIO_HW_CFG_RGMII_0_CFG(x) (((x) << 14) & GENMASK(14, 14))
+#define HSIO_HW_CFG_RGMII_0_CFG_M GENMASK(14, 14)
+#define HSIO_HW_CFG_RGMII_0_CFG_X(x) (((x) & GENMASK(14, 14)) >> 14)
+
+#define HSIO_HW_CFG_RGMII_ENA(x) (((x) << 12) & GENMASK(13, 12))
+#define HSIO_HW_CFG_RGMII_ENA_M GENMASK(13, 12)
+#define HSIO_HW_CFG_RGMII_ENA_X(x) (((x) & GENMASK(13, 12)) >> 12)
+
+#define HSIO_HW_CFG_SD6G_0_CFG(x) (((x) << 11) & GENMASK(11, 11))
+#define HSIO_HW_CFG_SD6G_0_CFG_M GENMASK(11, 11)
+#define HSIO_HW_CFG_SD6G_0_CFG_X(x) (((x) & GENMASK(11, 11)) >> 11)
+
+#define HSIO_HW_CFG_SD6G_1_CFG(x) (((x) << 10) & GENMASK(10, 10))
+#define HSIO_HW_CFG_SD6G_1_CFG_M GENMASK(10, 10)
+#define HSIO_HW_CFG_SD6G_1_CFG_X(x) (((x) & GENMASK(10, 10)) >> 10)
+
+#define HSIO_HW_CFG_GMII_ENA(x) (((x) << 2) & GENMASK(9, 2))
+#define HSIO_HW_CFG_GMII_ENA_M GENMASK(9, 2)
+#define HSIO_HW_CFG_GMII_ENA_X(x) (((x) & GENMASK(9, 2)) >> 2)
+
+#define HSIO_HW_CFG_QSGMII_ENA(x) ((x) & GENMASK(1, 0))
+#define HSIO_HW_CFG_QSGMII_ENA_M GENMASK(1, 0)
+#define HSIO_HW_CFG_QSGMII_ENA_X(x) ((x) & GENMASK(1, 0))
+
+/* HSIO:HW_CFGSTAT:GPIO_PI_CFG */
+#define HSIO_GPIO_PI_CFG __REG(TARGET_HSIO,\
+ 0, 1, 104, 0, 1, 52, 4, 0, 1, 4)
+
+#define HSIO_GPIO_PI_CFG_PI_MUX_ENA(x) ((x) & GENMASK(26, 0))
+#define HSIO_GPIO_PI_CFG_PI_MUX_ENA_M GENMASK(26, 0)
+#define HSIO_GPIO_PI_CFG_PI_MUX_ENA_X(x) ((x) & GENMASK(26, 0))
+
+/* HSIO:HW_CFGSTAT:QSGMII_CFG */
+#define HSIO_QSGMII_CFG __REG(TARGET_HSIO,\
+ 0, 1, 104, 0, 1, 52, 8, 0, 1, 4)
+
+#define HSIO_QSGMII_CFG_SHYST_DIS(x) (((x) << 4) & GENMASK(4, 4))
+#define HSIO_QSGMII_CFG_SHYST_DIS_M GENMASK(4, 4)
+#define HSIO_QSGMII_CFG_SHYST_DIS_X(x) (((x) & GENMASK(4, 4)) >> 4)
+
+#define HSIO_QSGMII_CFG_E_DET_ENA(x) (((x) << 3) & GENMASK(3, 3))
+#define HSIO_QSGMII_CFG_E_DET_ENA_M GENMASK(3, 3)
+#define HSIO_QSGMII_CFG_E_DET_ENA_X(x) (((x) & GENMASK(3, 3)) >> 3)
+
+#define HSIO_QSGMII_CFG_USE_I1_ENA(x) (((x) << 2) & GENMASK(2, 2))
+#define HSIO_QSGMII_CFG_USE_I1_ENA_M GENMASK(2, 2)
+#define HSIO_QSGMII_CFG_USE_I1_ENA_X(x) (((x) & GENMASK(2, 2)) >> 2)
+
+#define HSIO_QSGMII_CFG_FLIP_LANES(x) ((x) & GENMASK(1, 0))
+#define HSIO_QSGMII_CFG_FLIP_LANES_M GENMASK(1, 0)
+#define HSIO_QSGMII_CFG_FLIP_LANES_X(x) ((x) & GENMASK(1, 0))
+
+/* HSIO:HW_CFGSTAT:QSGMII_STAT */
+#define HSIO_QSGMII_STAT(r) __REG(TARGET_HSIO,\
+ 0, 1, 104, 0, 1, 52, 12, r, 2, 4)
+
+#define HSIO_QSGMII_STAT_DELAY_VAR_X200PS(x) (((x) << 2) & GENMASK(7, 2))
+#define HSIO_QSGMII_STAT_DELAY_VAR_X200PS_M GENMASK(7, 2)
+#define HSIO_QSGMII_STAT_DELAY_VAR_X200PS_X(x) (((x) & GENMASK(7, 2)) >> 2)
+
+#define HSIO_QSGMII_STAT_SYNC(x) ((x) & GENMASK(1, 0))
+#define HSIO_QSGMII_STAT_SYNC_M GENMASK(1, 0)
+#define HSIO_QSGMII_STAT_SYNC_X(x) ((x) & GENMASK(1, 0))
+
+/* HSIO:HW_CFGSTAT:RGMII_CFG */
+#define HSIO_RGMII_CFG(r) __REG(TARGET_HSIO,\
+ 0, 1, 104, 0, 1, 52, 20, r, 2, 4)
+
+#define HSIO_RGMII_CFG_IB_RX_LINK_STATUS(x) (((x) << 15) & GENMASK(15, 15))
+#define HSIO_RGMII_CFG_IB_RX_LINK_STATUS_M GENMASK(15, 15)
+#define HSIO_RGMII_CFG_IB_RX_LINK_STATUS_X(x) (((x) & GENMASK(15, 15)) >> 15)
+
+#define HSIO_RGMII_CFG_IB_RX_DUPLEX(x) (((x) << 14) & GENMASK(14, 14))
+#define HSIO_RGMII_CFG_IB_RX_DUPLEX_M GENMASK(14, 14)
+#define HSIO_RGMII_CFG_IB_RX_DUPLEX_X(x) (((x) & GENMASK(14, 14)) >> 14)
+
+#define HSIO_RGMII_CFG_IB_RX_SPEED(x) (((x) << 12) & GENMASK(13, 12))
+#define HSIO_RGMII_CFG_IB_RX_SPEED_M GENMASK(13, 12)
+#define HSIO_RGMII_CFG_IB_RX_SPEED_X(x) (((x) & GENMASK(13, 12)) >> 12)
+
+#define HSIO_RGMII_CFG_IB_TX_LINK_STATUS(x) (((x) << 11) & GENMASK(11, 11))
+#define HSIO_RGMII_CFG_IB_TX_LINK_STATUS_M GENMASK(11, 11)
+#define HSIO_RGMII_CFG_IB_TX_LINK_STATUS_X(x) (((x) & GENMASK(11, 11)) >> 11)
+
+#define HSIO_RGMII_CFG_IB_TX_FDX(x) (((x) << 10) & GENMASK(10, 10))
+#define HSIO_RGMII_CFG_IB_TX_FDX_M GENMASK(10, 10)
+#define HSIO_RGMII_CFG_IB_TX_FDX_X(x) (((x) & GENMASK(10, 10)) >> 10)
+
+#define HSIO_RGMII_CFG_IB_TX_MII_SPD(x) (((x) << 9) & GENMASK(9, 9))
+#define HSIO_RGMII_CFG_IB_TX_MII_SPD_M GENMASK(9, 9)
+#define HSIO_RGMII_CFG_IB_TX_MII_SPD_X(x) (((x) & GENMASK(9, 9)) >> 9)
+
+#define HSIO_RGMII_CFG_IB_TX_SPD_1G(x) (((x) << 8) & GENMASK(8, 8))
+#define HSIO_RGMII_CFG_IB_TX_SPD_1G_M GENMASK(8, 8)
+#define HSIO_RGMII_CFG_IB_TX_SPD_1G_X(x) (((x) & GENMASK(8, 8)) >> 8)
+
+#define HSIO_RGMII_CFG_IB_TX_ENA(x) (((x) << 7) & GENMASK(7, 7))
+#define HSIO_RGMII_CFG_IB_TX_ENA_M GENMASK(7, 7)
+#define HSIO_RGMII_CFG_IB_TX_ENA_X(x) (((x) & GENMASK(7, 7)) >> 7)
+
+#define HSIO_RGMII_CFG_IB_RX_ENA(x) (((x) << 6) & GENMASK(6, 6))
+#define HSIO_RGMII_CFG_IB_RX_ENA_M GENMASK(6, 6)
+#define HSIO_RGMII_CFG_IB_RX_ENA_X(x) (((x) & GENMASK(6, 6)) >> 6)
+
+#define HSIO_RGMII_CFG_IB_ENA(x) (((x) << 5) & GENMASK(5, 5))
+#define HSIO_RGMII_CFG_IB_ENA_M GENMASK(5, 5)
+#define HSIO_RGMII_CFG_IB_ENA_X(x) (((x) & GENMASK(5, 5)) >> 5)
+
+#define HSIO_RGMII_CFG_TX_CLK_CFG(x) (((x) << 2) & GENMASK(4, 2))
+#define HSIO_RGMII_CFG_TX_CLK_CFG_M GENMASK(4, 2)
+#define HSIO_RGMII_CFG_TX_CLK_CFG_X(x) (((x) & GENMASK(4, 2)) >> 2)
+
+#define HSIO_RGMII_CFG_RGMII_TX_RST(x) (((x) << 1) & GENMASK(1, 1))
+#define HSIO_RGMII_CFG_RGMII_TX_RST_M GENMASK(1, 1)
+#define HSIO_RGMII_CFG_RGMII_TX_RST_X(x) (((x) & GENMASK(1, 1)) >> 1)
+
+#define HSIO_RGMII_CFG_RGMII_RX_RST(x) ((x) & GENMASK(0, 0))
+#define HSIO_RGMII_CFG_RGMII_RX_RST_M GENMASK(0, 0)
+#define HSIO_RGMII_CFG_RGMII_RX_RST_X(x) ((x) & GENMASK(0, 0))
+
+/* HSIO:HW_CFGSTAT:RMII_CFG */
+#define HSIO_RMII_CFG(r) __REG(TARGET_HSIO,\
+ 0, 1, 104, 0, 1, 52, 28, r, 2, 4)
+
+#define HSIO_RMII_CFG_REF_CLK_SEL(x) (((x) << 6) & GENMASK(6, 6))
+#define HSIO_RMII_CFG_REF_CLK_SEL_M GENMASK(6, 6)
+#define HSIO_RMII_CFG_REF_CLK_SEL_X(x) (((x) & GENMASK(6, 6)) >> 6)
+
+#define HSIO_RMII_CFG_CFG_TX_EDGE(x) (((x) << 5) & GENMASK(5, 5))
+#define HSIO_RMII_CFG_CFG_TX_EDGE_M GENMASK(5, 5)
+#define HSIO_RMII_CFG_CFG_TX_EDGE_X(x) (((x) & GENMASK(5, 5)) >> 5)
+
+#define HSIO_RMII_CFG_FDX_CFG(x) (((x) << 4) & GENMASK(4, 4))
+#define HSIO_RMII_CFG_FDX_CFG_M GENMASK(4, 4)
+#define HSIO_RMII_CFG_FDX_CFG_X(x) (((x) & GENMASK(4, 4)) >> 4)
+
+#define HSIO_RMII_CFG_SPEED_CFG(x) (((x) << 3) & GENMASK(3, 3))
+#define HSIO_RMII_CFG_SPEED_CFG_M GENMASK(3, 3)
+#define HSIO_RMII_CFG_SPEED_CFG_X(x) (((x) & GENMASK(3, 3)) >> 3)
+
+#define HSIO_RMII_CFG_RMII_TX_RST(x) (((x) << 2) & GENMASK(2, 2))
+#define HSIO_RMII_CFG_RMII_TX_RST_M GENMASK(2, 2)
+#define HSIO_RMII_CFG_RMII_TX_RST_X(x) (((x) & GENMASK(2, 2)) >> 2)
+
+#define HSIO_RMII_CFG_RMII_RX_RST(x) (((x) << 1) & GENMASK(1, 1))
+#define HSIO_RMII_CFG_RMII_RX_RST_M GENMASK(1, 1)
+#define HSIO_RMII_CFG_RMII_RX_RST_X(x) (((x) & GENMASK(1, 1)) >> 1)
+
+#define HSIO_RMII_CFG_RMII_ENA(x) ((x) & GENMASK(0, 0))
+#define HSIO_RMII_CFG_RMII_ENA_M GENMASK(0, 0)
+#define HSIO_RMII_CFG_RMII_ENA_X(x) ((x) & GENMASK(0, 0))
+
+/* HSIO:HW_CFGSTAT:DLL_CFG */
+#define HSIO_DLL_CFG(r) __REG(TARGET_HSIO,\
+ 0, 1, 104, 0, 1, 52, 36, r, 4, 4)
+
+#define HSIO_DLL_CFG_DLL_CLK_ENA(x) (((x) << 20) & GENMASK(20, 20))
+#define HSIO_DLL_CFG_DLL_CLK_ENA_M GENMASK(20, 20)
+#define HSIO_DLL_CFG_DLL_CLK_ENA_X(x) (((x) & GENMASK(20, 20)) >> 20)
+
+#define HSIO_DLL_CFG_BIST_PASS(x) (((x) << 19) & GENMASK(19, 19))
+#define HSIO_DLL_CFG_BIST_PASS_M GENMASK(19, 19)
+#define HSIO_DLL_CFG_BIST_PASS_X(x) (((x) & GENMASK(19, 19)) >> 19)
+
+#define HSIO_DLL_CFG_BIST_END(x) (((x) << 18) & GENMASK(18, 18))
+#define HSIO_DLL_CFG_BIST_END_M GENMASK(18, 18)
+#define HSIO_DLL_CFG_BIST_END_X(x) (((x) & GENMASK(18, 18)) >> 18)
+
+#define HSIO_DLL_CFG_BIST_START(x) (((x) << 17) & GENMASK(17, 17))
+#define HSIO_DLL_CFG_BIST_START_M GENMASK(17, 17)
+#define HSIO_DLL_CFG_BIST_START_X(x) (((x) & GENMASK(17, 17)) >> 17)
+
+#define HSIO_DLL_CFG_TAP_SEL(x) (((x) << 10) & GENMASK(16, 10))
+#define HSIO_DLL_CFG_TAP_SEL_M GENMASK(16, 10)
+#define HSIO_DLL_CFG_TAP_SEL_X(x) (((x) & GENMASK(16, 10)) >> 10)
+
+#define HSIO_DLL_CFG_TAP_ADJ(x) (((x) << 3) & GENMASK(9, 3))
+#define HSIO_DLL_CFG_TAP_ADJ_M GENMASK(9, 3)
+#define HSIO_DLL_CFG_TAP_ADJ_X(x) (((x) & GENMASK(9, 3)) >> 3)
+
+#define HSIO_DLL_CFG_DELAY_ENA(x) (((x) << 2) & GENMASK(2, 2))
+#define HSIO_DLL_CFG_DELAY_ENA_M GENMASK(2, 2)
+#define HSIO_DLL_CFG_DELAY_ENA_X(x) (((x) & GENMASK(2, 2)) >> 2)
+
+#define HSIO_DLL_CFG_DLL_ENA(x) (((x) << 1) & GENMASK(1, 1))
+#define HSIO_DLL_CFG_DLL_ENA_M GENMASK(1, 1)
+#define HSIO_DLL_CFG_DLL_ENA_X(x) (((x) & GENMASK(1, 1)) >> 1)
+
+#define HSIO_DLL_CFG_DLL_RST(x) ((x) & GENMASK(0, 0))
+#define HSIO_DLL_CFG_DLL_RST_M GENMASK(0, 0)
+#define HSIO_DLL_CFG_DLL_RST_X(x) ((x) & GENMASK(0, 0))
+
+#endif /* _LAN966X_HSIO_REGS_H_ */
--
2.33.0
On 15-10-21, 14:39, Horatiu Vultur wrote:
> Add the Microchip lan966x ethernet serdes PHY driver for interfaces
> available in the lan966x SoC.
>
> Signed-off-by: Horatiu Vultur <[email protected]>
> ---
> drivers/phy/microchip/Kconfig | 8 +
> drivers/phy/microchip/Makefile | 1 +
> drivers/phy/microchip/lan966x_serdes.c | 540 ++++++++++++++++++++
> drivers/phy/microchip/lan966x_serdes_regs.h | 482 +++++++++++++++++
> 4 files changed, 1031 insertions(+)
> create mode 100644 drivers/phy/microchip/lan966x_serdes.c
> create mode 100644 drivers/phy/microchip/lan966x_serdes_regs.h
>
> diff --git a/drivers/phy/microchip/Kconfig b/drivers/phy/microchip/Kconfig
> index 3728a284bf64..38039ed0754c 100644
> --- a/drivers/phy/microchip/Kconfig
> +++ b/drivers/phy/microchip/Kconfig
> @@ -11,3 +11,11 @@ config PHY_SPARX5_SERDES
> depends on HAS_IOMEM
> help
> Enable this for support of the 10G/25G SerDes on Microchip Sparx5.
> +
> +config PHY_LAN966X_SERDES
> + tristate "SerDes PHY driver for Microchip LAN966X"
> + select GENERIC_PHY
> + depends on OF
> + depends on MFD_SYSCON
> + help
> + Enable this for supporting SerDes muxing with Microchip LAN966X
> diff --git a/drivers/phy/microchip/Makefile b/drivers/phy/microchip/Makefile
> index 7b98345712aa..fd73b87960a5 100644
> --- a/drivers/phy/microchip/Makefile
> +++ b/drivers/phy/microchip/Makefile
> @@ -4,3 +4,4 @@
> #
>
> obj-$(CONFIG_PHY_SPARX5_SERDES) := sparx5_serdes.o
> +obj-$(CONFIG_PHY_LAN966X_SERDES) := lan966x_serdes.o
> diff --git a/drivers/phy/microchip/lan966x_serdes.c b/drivers/phy/microchip/lan966x_serdes.c
> new file mode 100644
> index 000000000000..e663bb9186a8
> --- /dev/null
> +++ b/drivers/phy/microchip/lan966x_serdes.c
> @@ -0,0 +1,540 @@
> +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
Any reason why this is dual licensed, why not GPL only?
> +
> +#include <linux/err.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/of_platform.h>
> +#include <linux/phy.h>
Why this header?
> +#include <linux/phy/phy.h>
> +#include <linux/platform_device.h>
> +#include <dt-bindings/phy/phy-lan966x-serdes.h>
> +#include "lan966x_serdes_regs.h"
> +
> +#define lan_offset_(id, tinst, tcnt, \
> + gbase, ginst, gcnt, gwidth, \
> + raddr, rinst, rcnt, rwidth) \
> + (gbase + ((ginst) * gwidth) + raddr + ((rinst) * rwidth))
> +#define lan_offset(...) lan_offset_(__VA_ARGS__)
> +
> +static void lan_rmw_(u32 val, u32 mask, void __iomem *mem, u32 offset)
> +{
> + u32 v;
> +
> + v = readl(mem + offset);
> + v = (v & ~mask) | (val & mask);
> + writel(v, mem + offset);
> +}
> +
> +#define lan_rmw(val, mask, reg, off) \
> + lan_rmw_(val, mask, reg, lan_offset(off))
> +
> +struct serdes_ctrl {
> + void __iomem *regs;
> + struct device *dev;
> + struct phy *phys[SERDES_MAX];
> + int ref125;
> +};
> +
> +struct serdes_macro {
> + u8 idx;
> + int port;
> + struct serdes_ctrl *ctrl;
> + int speed;
> + phy_interface_t mode;
> +};
> +
> +enum lan966x_sd6g40_mode {
> + LAN966X_SD6G40_MODE_QSGMII,
> + LAN966X_SD6G40_MODE_SGMII,
> +};
> +
> +enum lan966x_sd6g40_ltx2rx {
> + LAN966X_SD6G40_TX2RX_LOOP_NONE,
> + LAN966X_SD6G40_LTX2RX
> +};
> +
> +struct lan966x_sd6g40_setup_args {
> + enum lan966x_sd6g40_mode mode;
> + enum lan966x_sd6g40_ltx2rx tx2rx_loop;
> + bool txinvert;
> + bool rxinvert;
> + bool refclk125M;
> + bool mute;
> +};
> +
> +struct lan966x_sd6g40_mode_args {
> + enum lan966x_sd6g40_mode mode;
> + u8 lane_10bit_sel;
> + u8 mpll_multiplier;
> + u8 ref_clkdiv2;
> + u8 tx_rate;
> + u8 rx_rate;
> +};
> +
> +struct lan966x_sd6g40_setup {
> + u8 rx_term_en;
> + u8 lane_10bit_sel;
> + u8 tx_invert;
> + u8 rx_invert;
> + u8 mpll_multiplier;
> + u8 lane_loopbk_en;
> + u8 ref_clkdiv2;
> + u8 tx_rate;
> + u8 rx_rate;
> +};
> +
> +static int lan966x_sd6g40_reg_cfg(struct serdes_macro *macro,
> + struct lan966x_sd6g40_setup *res_struct,
> + u32 idx)
> +{
> + u32 value;
> +
> + /* Note: SerDes HSIO is configured in 1G_LAN mode */
> + lan_rmw(HSIO_SD_CFG_LANE_10BIT_SEL(res_struct->lane_10bit_sel) |
> + HSIO_SD_CFG_RX_RATE(res_struct->rx_rate) |
> + HSIO_SD_CFG_TX_RATE(res_struct->tx_rate) |
> + HSIO_SD_CFG_TX_INVERT(res_struct->tx_invert) |
> + HSIO_SD_CFG_RX_INVERT(res_struct->rx_invert) |
> + HSIO_SD_CFG_LANE_LOOPBK_EN(res_struct->lane_loopbk_en) |
> + HSIO_SD_CFG_RX_RESET(0) |
> + HSIO_SD_CFG_TX_RESET(0),
> + HSIO_SD_CFG_LANE_10BIT_SEL_M |
> + HSIO_SD_CFG_RX_RATE_M |
> + HSIO_SD_CFG_TX_RATE_M |
> + HSIO_SD_CFG_TX_INVERT_M |
> + HSIO_SD_CFG_RX_INVERT_M |
> + HSIO_SD_CFG_LANE_LOOPBK_EN_M |
> + HSIO_SD_CFG_RX_RESET_M |
> + HSIO_SD_CFG_TX_RESET_M,
> + macro->ctrl->regs, HSIO_SD_CFG(idx));
> +
> + lan_rmw(HSIO_MPLL_CFG_MPLL_MULTIPLIER(res_struct->mpll_multiplier) |
> + HSIO_MPLL_CFG_REF_CLKDIV2(res_struct->ref_clkdiv2),
> + HSIO_MPLL_CFG_MPLL_MULTIPLIER_M |
> + HSIO_MPLL_CFG_REF_CLKDIV2_M,
> + macro->ctrl->regs, HSIO_MPLL_CFG(idx));
> +
> + lan_rmw(HSIO_SD_CFG_RX_TERM_EN(res_struct->rx_term_en),
> + HSIO_SD_CFG_RX_TERM_EN_M,
> + macro->ctrl->regs, HSIO_SD_CFG(idx));
> +
> + lan_rmw(HSIO_MPLL_CFG_REF_SSP_EN(1),
> + HSIO_MPLL_CFG_REF_SSP_EN_M,
> + macro->ctrl->regs, HSIO_MPLL_CFG(idx));
> +
> + usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
> +
> + lan_rmw(HSIO_SD_CFG_PHY_RESET(0),
> + HSIO_SD_CFG_PHY_RESET_M,
> + macro->ctrl->regs, HSIO_SD_CFG(idx));
> +
> + usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
> +
> + lan_rmw(HSIO_MPLL_CFG_MPLL_EN(1),
> + HSIO_MPLL_CFG_MPLL_EN_M,
> + macro->ctrl->regs, HSIO_MPLL_CFG(idx));
> +
> + usleep_range(7 * USEC_PER_MSEC, 8 * USEC_PER_MSEC);
> +
> + value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
> + value = HSIO_SD_STAT_MPLL_STATE_X(value);
> + if (value != 0x1) {
> + pr_info("Unexpected sd_sd_stat[%u] mpll_state was 0x1 but is 0x%x\n",
> + idx, value);
maybe an err log? Also why not use dev_err here?
> + return -EIO;
> + }
> +
> + lan_rmw(HSIO_SD_CFG_TX_CM_EN(1),
> + HSIO_SD_CFG_TX_CM_EN_M,
> + macro->ctrl->regs, HSIO_SD_CFG(idx));
> +
> + usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
> +
> + value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
> + value = HSIO_SD_STAT_TX_CM_STATE_X(value);
> + if (value != 0x1) {
> + pr_info("Unexpected sd_sd_stat[%u] tx_cm_state was 0x1 but is 0x%x\n",
> + idx, value);
here as well
> + return -EIO;
> + }
> +
> + lan_rmw(HSIO_SD_CFG_RX_PLL_EN(1) |
> + HSIO_SD_CFG_TX_EN(1),
> + HSIO_SD_CFG_RX_PLL_EN_M |
> + HSIO_SD_CFG_TX_EN_M,
> + macro->ctrl->regs, HSIO_SD_CFG(idx));
> +
> + usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
> +
> + /* Waiting for serdes 0 rx DPLL to lock... */
> + value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
> + value = HSIO_SD_STAT_RX_PLL_STATE_X(value);
> + if (value != 0x1) {
> + pr_info("Unexpected sd_sd_stat[%u] rx_pll_state was 0x1 but is 0x%x\n",
> + idx, value);
> + return -EIO;
> + }
> +
> + /* Waiting for serdes 0 tx operational... */
> + value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
> + value = HSIO_SD_STAT_TX_STATE_X(value);
> + if (value != 0x1) {
> + pr_info("Unexpected sd_sd_stat[%u] tx_state was 0x1 but is 0x%x\n",
> + idx, value);
> + return -EIO;
> + }
> +
> + lan_rmw(HSIO_SD_CFG_TX_DATA_EN(1) |
> + HSIO_SD_CFG_RX_DATA_EN(1),
> + HSIO_SD_CFG_TX_DATA_EN_M |
> + HSIO_SD_CFG_RX_DATA_EN_M,
> + macro->ctrl->regs, HSIO_SD_CFG(idx));
> +
> + return 0;
> +}
> +
> +static int lan966x_sd6g40_get_conf_from_mode(struct serdes_macro *macro,
> + enum lan966x_sd6g40_mode f_mode,
> + bool ref125M,
> + struct lan966x_sd6g40_mode_args *ret_val)
> +{
> + switch (f_mode) {
> + case LAN966X_SD6G40_MODE_QSGMII:
> + ret_val->lane_10bit_sel = 0;
> + if (ref125M) {
> + ret_val->mpll_multiplier = 40;
> + ret_val->ref_clkdiv2 = 0x1;
> + ret_val->tx_rate = 0x0;
> + ret_val->rx_rate = 0x0;
> + } else {
> + ret_val->mpll_multiplier = 100;
> + ret_val->ref_clkdiv2 = 0x0;
> + ret_val->tx_rate = 0x0;
> + ret_val->rx_rate = 0x0;
> + }
> + break;
empty line here please
> + case LAN966X_SD6G40_MODE_SGMII:
> + ret_val->lane_10bit_sel = 1;
> + if (ref125M) {
> + ret_val->mpll_multiplier = macro->speed == SPEED_2500 ? 50 : 40;
> + ret_val->ref_clkdiv2 = 0x1;
> + ret_val->tx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
> + ret_val->rx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
> + } else {
> + ret_val->mpll_multiplier = macro->speed == SPEED_2500 ? 125 : 100;
> + ret_val->ref_clkdiv2 = 0x0;
> + ret_val->tx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
> + ret_val->rx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
> + }
> + break;
> + default:
> + return -EOPNOTSUPP;
> + }
> +
> + return 0;
> +}
> +
> +static int lan966x_calc_sd6g40_setup_lane(struct serdes_macro *macro,
> + struct lan966x_sd6g40_setup_args config,
> + struct lan966x_sd6g40_setup *ret_val)
> +{
> + struct lan966x_sd6g40_mode_args sd6g40_mode;
> + struct lan966x_sd6g40_mode_args *mode_args = &sd6g40_mode;
> + int ret;
> +
> + ret = lan966x_sd6g40_get_conf_from_mode(macro, config.mode,
> + config.refclk125M, mode_args);
> + if (ret)
> + return ret;
> +
> + ret_val->lane_10bit_sel = mode_args->lane_10bit_sel;
> + ret_val->rx_rate = mode_args->rx_rate;
> + ret_val->tx_rate = mode_args->tx_rate;
> + ret_val->mpll_multiplier = mode_args->mpll_multiplier;
> + ret_val->ref_clkdiv2 = mode_args->ref_clkdiv2;
> + ret_val->rx_term_en = 0;
> +
> + if (config.tx2rx_loop == LAN966X_SD6G40_LTX2RX)
> + ret_val->lane_loopbk_en = 1;
> + else
> + ret_val->lane_loopbk_en = 0;
> +
> + if (config.txinvert)
> + ret_val->tx_invert = 1;
> + else
> + ret_val->tx_invert = 0;
ret_val->tx_invert = !!config.txinvert;
> +
> + if (config.rxinvert)
> + ret_val->rx_invert = 1;
> + else
> + ret_val->rx_invert = 0;
> +
> + return 0;
> +}
> +
> +static int lan966x_sd6g40_setup_lane(struct serdes_macro *macro,
> + struct lan966x_sd6g40_setup_args config,
> + u32 idx)
> +{
> + struct lan966x_sd6g40_setup calc_results;
> + int ret;
> +
> + memset(&calc_results, 0x0, sizeof(calc_results));
why not initialize calc_results and skip memeset
struct lan966x_sd6g40_setup calc_results = {};
> +
> + ret = lan966x_calc_sd6g40_setup_lane(macro, config, &calc_results);
> + if (ret)
> + return ret;
> +
> + return lan966x_sd6g40_reg_cfg(macro, &calc_results, idx);
> +}
> +
> +static int lan966x_sd6g40_setup(struct serdes_macro *macro, u32 idx, int mode)
> +{
> + struct lan966x_sd6g40_setup_args conf;
> +
> + memset(&conf, 0x0, sizeof(conf));
here too
> + conf.refclk125M = macro->ctrl->ref125;
> +
> + if (mode == PHY_INTERFACE_MODE_QSGMII)
> + conf.mode = LAN966X_SD6G40_MODE_QSGMII;
> + else
> + conf.mode = LAN966X_SD6G40_MODE_SGMII;
> +
> + return lan966x_sd6g40_setup_lane(macro, conf, idx);
> +}
> +
> +struct serdes_mux {
> + u8 idx;
> + u8 port;
> + enum phy_mode mode;
> + int submode;
> + u32 mask;
> + u32 mux;
> +};
> +
> +#define SERDES_MUX(_idx, _port, _mode, _submode, _mask, _mux) { \
> + .idx = _idx, \
> + .port = _port, \
> + .mode = _mode, \
> + .submode = _submode, \
> + .mask = _mask, \
> + .mux = _mux, \
> +}
structs and macros at the top fo the file pls
> +
> +#define SERDES_MUX_GMII(i, p, m, c) \
> + SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_GMII, m, c)
> +#define SERDES_MUX_SGMII(i, p, m, c) \
> + SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_SGMII, m, c)
> +#define SERDES_MUX_QSGMII(i, p, m, c) \
> + SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_QSGMII, m, c)
> +#define SERDES_MUX_RGMII(i, p, m, c) \
> + SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_RGMII, m, c)
> +
> +static const struct serdes_mux lan966x_serdes_muxes[] = {
> + SERDES_MUX_QSGMII(SERDES6G(1), 0, HSIO_HW_CFG_QSGMII_ENA_M,
> + HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
> + SERDES_MUX_QSGMII(SERDES6G(1), 1, HSIO_HW_CFG_QSGMII_ENA_M,
> + HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
> + SERDES_MUX_QSGMII(SERDES6G(1), 2, HSIO_HW_CFG_QSGMII_ENA_M,
> + HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
> + SERDES_MUX_QSGMII(SERDES6G(1), 3, HSIO_HW_CFG_QSGMII_ENA_M,
> + HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
> +
> + SERDES_MUX_QSGMII(SERDES6G(2), 4, HSIO_HW_CFG_QSGMII_ENA_M,
> + HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
> + SERDES_MUX_QSGMII(SERDES6G(2), 5, HSIO_HW_CFG_QSGMII_ENA_M,
> + HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
> + SERDES_MUX_QSGMII(SERDES6G(2), 6, HSIO_HW_CFG_QSGMII_ENA_M,
> + HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
> + SERDES_MUX_QSGMII(SERDES6G(2), 7, HSIO_HW_CFG_QSGMII_ENA_M,
> + HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
> +
> + SERDES_MUX_GMII(PHY(0), 0, HSIO_HW_CFG_GMII_ENA_M,
> + HSIO_HW_CFG_GMII_ENA(BIT(0))),
> + SERDES_MUX_GMII(PHY(1), 1, HSIO_HW_CFG_GMII_ENA_M,
> + HSIO_HW_CFG_GMII_ENA(BIT(1))),
> +
> + SERDES_MUX_SGMII(SERDES6G(0), 0, HSIO_HW_CFG_SD6G_0_CFG_M, 0),
> + SERDES_MUX_SGMII(SERDES6G(1), 1, HSIO_HW_CFG_SD6G_1_CFG_M, 0),
> + SERDES_MUX_SGMII(SERDES6G(0), 2, HSIO_HW_CFG_SD6G_0_CFG_M,
> + HSIO_HW_CFG_SD6G_0_CFG(1)),
> + SERDES_MUX_SGMII(SERDES6G(1), 3, HSIO_HW_CFG_SD6G_1_CFG_M,
> + HSIO_HW_CFG_SD6G_1_CFG(1)),
> +
> + SERDES_MUX_RGMII(RGMII(0), 2, HSIO_HW_CFG_RGMII_0_CFG_M |
> + HSIO_HW_CFG_RGMII_ENA_M,
> + HSIO_HW_CFG_RGMII_0_CFG(BIT(0)) |
> + HSIO_HW_CFG_RGMII_ENA(BIT(0))),
> + SERDES_MUX_RGMII(RGMII(1), 3, HSIO_HW_CFG_RGMII_1_CFG_M |
> + HSIO_HW_CFG_RGMII_ENA_M,
> + HSIO_HW_CFG_RGMII_1_CFG(BIT(0)) |
> + HSIO_HW_CFG_RGMII_ENA(BIT(1))),
> + SERDES_MUX_RGMII(RGMII(0), 5, HSIO_HW_CFG_RGMII_0_CFG_M |
> + HSIO_HW_CFG_RGMII_ENA_M,
> + HSIO_HW_CFG_RGMII_0_CFG(BIT(0)) |
> + HSIO_HW_CFG_RGMII_ENA(BIT(0))),
> + SERDES_MUX_RGMII(RGMII(1), 6, HSIO_HW_CFG_RGMII_1_CFG_M |
> + HSIO_HW_CFG_RGMII_ENA_M,
> + HSIO_HW_CFG_RGMII_1_CFG(BIT(0)) |
> + HSIO_HW_CFG_RGMII_ENA(BIT(1))),
> +};
> +
> +static int serdes_set_mode(struct phy *phy, enum phy_mode mode, int submode)
> +{
> + struct serdes_macro *macro = phy_get_drvdata(phy);
> + unsigned int i;
> + int val;
> +
> + /* As of now only PHY_MODE_ETHERNET is supported */
> + if (mode != PHY_MODE_ETHERNET)
> + return -EOPNOTSUPP;
> +
> + for (i = 0; i < ARRAY_SIZE(lan966x_serdes_muxes); i++) {
> + if (macro->idx != lan966x_serdes_muxes[i].idx ||
> + mode != lan966x_serdes_muxes[i].mode ||
> + submode != lan966x_serdes_muxes[i].submode ||
> + macro->port != lan966x_serdes_muxes[i].port)
> + continue;
> +
> + val = readl(macro->ctrl->regs + lan_offset(HSIO_HW_CFG));
> + val |= lan966x_serdes_muxes[i].mux;
> + lan_rmw(val, lan966x_serdes_muxes[i].mask,
> + macro->ctrl->regs, HSIO_HW_CFG);
> +
> + macro->mode = lan966x_serdes_muxes[i].submode;
> +
> + if (macro->idx < PHY_MAX)
> + return 0;
> +
> + if (macro->idx < SERDES6G_MAX)
> + return lan966x_sd6g40_setup(macro,
> + macro->idx - (PHY_MAX + 1),
> + macro->mode);
> +
> + if (macro->idx < RGMII_MAX)
> + return 0;
> +
> + return -EOPNOTSUPP;
> + }
> +
> + return -EINVAL;
> +}
> +
> +static int serdes_set_speed(struct phy *phy, int speed)
> +{
> + struct serdes_macro *macro = phy_get_drvdata(phy);
> +
> + macro->speed = speed;
> +
> + return lan966x_sd6g40_setup(macro, macro->idx - (PHY_MAX + 1),
> + macro->mode);
> +}
> +
> +static const struct phy_ops serdes_ops = {
> + .set_mode = serdes_set_mode,
> + .set_speed = serdes_set_speed,
> + .owner = THIS_MODULE,
> +};
> +
> +static struct phy *serdes_simple_xlate(struct device *dev,
> + struct of_phandle_args *args)
> +{
> + struct serdes_ctrl *ctrl = dev_get_drvdata(dev);
> + unsigned int port, idx, i;
> +
> + if (args->args_count != 2)
> + return ERR_PTR(-EINVAL);
> +
> + port = args->args[0];
> + idx = args->args[1];
> +
> + for (i = 0; i < SERDES_MAX; i++) {
> + struct serdes_macro *macro = phy_get_drvdata(ctrl->phys[i]);
> +
> + if (idx != macro->idx)
> + continue;
> +
> + macro->port = port;
> + return ctrl->phys[i];
> + }
> +
> + return ERR_PTR(-ENODEV);
> +}
> +
> +static int serdes_phy_create(struct serdes_ctrl *ctrl, u8 idx, struct phy **phy)
> +{
> + struct serdes_macro *macro;
> +
> + *phy = devm_phy_create(ctrl->dev, NULL, &serdes_ops);
> + if (IS_ERR(*phy))
> + return PTR_ERR(*phy);
> +
> + macro = devm_kzalloc(ctrl->dev, sizeof(*macro), GFP_KERNEL);
> + if (!macro)
> + return -ENOMEM;
> +
> + macro->idx = idx;
> + macro->ctrl = ctrl;
> + macro->speed = SPEED_1000;
> + macro->port = -1;
> +
> + phy_set_drvdata(*phy, macro);
> +
> + return 0;
> +}
> +
> +static int serdes_probe(struct platform_device *pdev)
> +{
> + struct phy_provider *provider;
> + struct serdes_ctrl *ctrl;
> + void __iomem *hw_stat;
> + unsigned int i;
> + u32 val;
> + int ret;
> +
> + ctrl = devm_kzalloc(&pdev->dev, sizeof(*ctrl), GFP_KERNEL);
> + if (!ctrl)
> + return -ENOMEM;
> +
> + ctrl->dev = &pdev->dev;
> + ctrl->regs = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
> + if (IS_ERR(ctrl->regs))
> + return PTR_ERR(ctrl->regs);
> +
> + hw_stat = devm_platform_get_and_ioremap_resource(pdev, 1, NULL);
> + if (IS_ERR(hw_stat))
> + return PTR_ERR(hw_stat);
> +
> + for (i = 0; i < SERDES_MAX; i++) {
> + ret = serdes_phy_create(ctrl, i, &ctrl->phys[i]);
> + if (ret)
> + return ret;
> + }
> +
> + val = readl(hw_stat);
> + val = (GENMASK(4, 3) & val) >> 3;
> + ctrl->ref125 = (val == 1 || val == 2);
lots of magic values pls define them
> +
> + dev_set_drvdata(&pdev->dev, ctrl);
> +
> + provider = devm_of_phy_provider_register(ctrl->dev,
> + serdes_simple_xlate);
> +
> + return PTR_ERR_OR_ZERO(provider);
> +}
> +
> +static const struct of_device_id serdes_ids[] = {
> + { .compatible = "microchip,lan966x-serdes", },
> + {},
> +};
> +MODULE_DEVICE_TABLE(of, serdes_ids);
> +
> +static struct platform_driver mscc_lan966x_serdes = {
> + .probe = serdes_probe,
> + .driver = {
> + .name = "microchip,lan966x-serdes",
> + .of_match_table = of_match_ptr(serdes_ids),
> + },
> +};
No MODULE_LICENSE()?
> +
> +module_platform_driver(mscc_lan966x_serdes);
> diff --git a/drivers/phy/microchip/lan966x_serdes_regs.h b/drivers/phy/microchip/lan966x_serdes_regs.h
> new file mode 100644
> index 000000000000..c3d3d16c1e97
> --- /dev/null
> +++ b/drivers/phy/microchip/lan966x_serdes_regs.h
> @@ -0,0 +1,482 @@
> +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
> +/*
> + * Microchip LAN966x Switch driver
> + *
> + * License: Dual MIT/GPL
> + * Copyright (c) 2020 Microchip Technology Inc.
> + */
> +
> +/* This file is autogenerated by cml-utils 2021-05-12 15:48:55 +0200.
what is this cml-utils?
> + * Commit ID: dbe188f718027a2c414b90d45f152b73468cbc5c (dirty)
> + */
> +
> +#ifndef _LAN966X_HSIO_REGS_H_
> +#define _LAN966X_HSIO_REGS_H_
> +
> +#include <linux/bitops.h>
> +
> +#define LAN966X_BUILD_ID_REG GCB_BUILDID
> +enum lan966x_target {
> + TARGET_HSIO = 32,
> + NUM_TARGETS = 66
> +};
> +
> +#define __REG(...) __VA_ARGS__
> +
> +/* HSIO:SYNC_ETH_CFG:SYNC_ETH_CFG */
> +#define HSIO_SYNC_ETH_CFG(r) __REG(TARGET_HSIO,\
> + 0, 1, 0, 0, 1, 8, 0, r, 2, 4)
> +
> +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_SRC(x) (((x) << 4) & GENMASK(6, 4))
> +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_SRC_M GENMASK(6, 4)
> +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_SRC_X(x) (((x) & GENMASK(6, 4)) >> 4)
> +
> +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_DIV(x) (((x) << 1) & GENMASK(3, 1))
> +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_DIV_M GENMASK(3, 1)
> +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_DIV_X(x) (((x) & GENMASK(3, 1)) >> 1)
> +
> +#define HSIO_SYNC_ETH_CFG_RECO_CLK_ENA(x) ((x) & GENMASK(0, 0))
> +#define HSIO_SYNC_ETH_CFG_RECO_CLK_ENA_M GENMASK(0, 0)
> +#define HSIO_SYNC_ETH_CFG_RECO_CLK_ENA_X(x) ((x) & GENMASK(0, 0))
> +
> +/* HSIO:SD:SD_CFG */
> +#define HSIO_SD_CFG(g) __REG(TARGET_HSIO,\
> + 0, 1, 8, g, 3, 32, 0, 0, 1, 4)
> +
> +#define HSIO_SD_CFG_TEST_POWERDOWN(x) (((x) << 28) & GENMASK(28, 28))
> +#define HSIO_SD_CFG_TEST_POWERDOWN_M GENMASK(28, 28)
> +#define HSIO_SD_CFG_TEST_POWERDOWN_X(x) (((x) & GENMASK(28, 28)) >> 28)
> +
> +#define HSIO_SD_CFG_PHY_RESET(x) (((x) << 27) & GENMASK(27, 27))
> +#define HSIO_SD_CFG_PHY_RESET_M GENMASK(27, 27)
> +#define HSIO_SD_CFG_PHY_RESET_X(x) (((x) & GENMASK(27, 27)) >> 27)
> +
> +#define HSIO_SD_CFG_RX_LOS_FILT_CNT(x) (((x) << 20) & GENMASK(26, 20))
> +#define HSIO_SD_CFG_RX_LOS_FILT_CNT_M GENMASK(26, 20)
> +#define HSIO_SD_CFG_RX_LOS_FILT_CNT_X(x) (((x) & GENMASK(26, 20)) >> 20)
> +
> +#define HSIO_SD_CFG_TX_VBOOST_EN(x) (((x) << 19) & GENMASK(19, 19))
> +#define HSIO_SD_CFG_TX_VBOOST_EN_M GENMASK(19, 19)
> +#define HSIO_SD_CFG_TX_VBOOST_EN_X(x) (((x) & GENMASK(19, 19)) >> 19)
> +
> +#define HSIO_SD_CFG_TX_RESET(x) (((x) << 18) & GENMASK(18, 18))
> +#define HSIO_SD_CFG_TX_RESET_M GENMASK(18, 18)
> +#define HSIO_SD_CFG_TX_RESET_X(x) (((x) & GENMASK(18, 18)) >> 18)
> +
> +#define HSIO_SD_CFG_TX_RATE(x) (((x) << 16) & GENMASK(17, 16))
> +#define HSIO_SD_CFG_TX_RATE_M GENMASK(17, 16)
> +#define HSIO_SD_CFG_TX_RATE_X(x) (((x) & GENMASK(17, 16)) >> 16)
> +
> +#define HSIO_SD_CFG_TX_INVERT(x) (((x) << 15) & GENMASK(15, 15))
> +#define HSIO_SD_CFG_TX_INVERT_M GENMASK(15, 15)
> +#define HSIO_SD_CFG_TX_INVERT_X(x) (((x) & GENMASK(15, 15)) >> 15)
> +
> +#define HSIO_SD_CFG_TX_EN(x) (((x) << 14) & GENMASK(14, 14))
> +#define HSIO_SD_CFG_TX_EN_M GENMASK(14, 14)
> +#define HSIO_SD_CFG_TX_EN_X(x) (((x) & GENMASK(14, 14)) >> 14)
> +
> +#define HSIO_SD_CFG_TX_DETECT_RX_REQ(x) (((x) << 13) & GENMASK(13, 13))
> +#define HSIO_SD_CFG_TX_DETECT_RX_REQ_M GENMASK(13, 13)
> +#define HSIO_SD_CFG_TX_DETECT_RX_REQ_X(x) (((x) & GENMASK(13, 13)) >> 13)
> +
> +#define HSIO_SD_CFG_TX_DATA_EN(x) (((x) << 12) & GENMASK(12, 12))
> +#define HSIO_SD_CFG_TX_DATA_EN_M GENMASK(12, 12)
> +#define HSIO_SD_CFG_TX_DATA_EN_X(x) (((x) & GENMASK(12, 12)) >> 12)
> +
> +#define HSIO_SD_CFG_TX_CM_EN(x) (((x) << 11) & GENMASK(11, 11))
> +#define HSIO_SD_CFG_TX_CM_EN_M GENMASK(11, 11)
> +#define HSIO_SD_CFG_TX_CM_EN_X(x) (((x) & GENMASK(11, 11)) >> 11)
> +
> +#define HSIO_SD_CFG_LANE_10BIT_SEL(x) (((x) << 10) & GENMASK(10, 10))
> +#define HSIO_SD_CFG_LANE_10BIT_SEL_M GENMASK(10, 10)
> +#define HSIO_SD_CFG_LANE_10BIT_SEL_X(x) (((x) & GENMASK(10, 10)) >> 10)
> +
> +#define HSIO_SD_CFG_RX_TERM_EN(x) (((x) << 9) & GENMASK(9, 9))
> +#define HSIO_SD_CFG_RX_TERM_EN_M GENMASK(9, 9)
> +#define HSIO_SD_CFG_RX_TERM_EN_X(x) (((x) & GENMASK(9, 9)) >> 9)
> +
> +#define HSIO_SD_CFG_RX_RESET(x) (((x) << 8) & GENMASK(8, 8))
> +#define HSIO_SD_CFG_RX_RESET_M GENMASK(8, 8)
> +#define HSIO_SD_CFG_RX_RESET_X(x) (((x) & GENMASK(8, 8)) >> 8)
> +
> +#define HSIO_SD_CFG_RX_RATE(x) (((x) << 6) & GENMASK(7, 6))
> +#define HSIO_SD_CFG_RX_RATE_M GENMASK(7, 6)
> +#define HSIO_SD_CFG_RX_RATE_X(x) (((x) & GENMASK(7, 6)) >> 6)
> +
> +#define HSIO_SD_CFG_RX_PLL_EN(x) (((x) << 5) & GENMASK(5, 5))
> +#define HSIO_SD_CFG_RX_PLL_EN_M GENMASK(5, 5)
> +#define HSIO_SD_CFG_RX_PLL_EN_X(x) (((x) & GENMASK(5, 5)) >> 5)
> +
> +#define HSIO_SD_CFG_RX_LOS_EN(x) (((x) << 4) & GENMASK(4, 4))
> +#define HSIO_SD_CFG_RX_LOS_EN_M GENMASK(4, 4)
> +#define HSIO_SD_CFG_RX_LOS_EN_X(x) (((x) & GENMASK(4, 4)) >> 4)
> +
> +#define HSIO_SD_CFG_RX_INVERT(x) (((x) << 3) & GENMASK(3, 3))
> +#define HSIO_SD_CFG_RX_INVERT_M GENMASK(3, 3)
> +#define HSIO_SD_CFG_RX_INVERT_X(x) (((x) & GENMASK(3, 3)) >> 3)
> +
> +#define HSIO_SD_CFG_RX_DATA_EN(x) (((x) << 2) & GENMASK(2, 2))
> +#define HSIO_SD_CFG_RX_DATA_EN_M GENMASK(2, 2)
> +#define HSIO_SD_CFG_RX_DATA_EN_X(x) (((x) & GENMASK(2, 2)) >> 2)
> +
> +#define HSIO_SD_CFG_RX_ALIGN_EN(x) (((x) << 1) & GENMASK(1, 1))
> +#define HSIO_SD_CFG_RX_ALIGN_EN_M GENMASK(1, 1)
> +#define HSIO_SD_CFG_RX_ALIGN_EN_X(x) (((x) & GENMASK(1, 1)) >> 1)
> +
> +#define HSIO_SD_CFG_LANE_LOOPBK_EN(x) ((x) & GENMASK(0, 0))
> +#define HSIO_SD_CFG_LANE_LOOPBK_EN_M GENMASK(0, 0)
> +#define HSIO_SD_CFG_LANE_LOOPBK_EN_X(x) ((x) & GENMASK(0, 0))
> +
> +/* HSIO:SD:SD_CFG2 */
> +#define HSIO_SD_CFG2(g) __REG(TARGET_HSIO,\
> + 0, 1, 8, g, 3, 32, 4, 0, 1, 4)
> +
> +#define HSIO_SD_CFG2_RX_EQ(x) (((x) << 25) & GENMASK(27, 25))
> +#define HSIO_SD_CFG2_RX_EQ_M GENMASK(27, 25)
> +#define HSIO_SD_CFG2_RX_EQ_X(x) (((x) & GENMASK(27, 25)) >> 25)
You should look at bitfield.h for helpers, you can skip these
--
~Vinod
The 10/19/2021 23:27, Vinod Koul wrote:
>
> On 15-10-21, 14:39, Horatiu Vultur wrote:
> > Add the Microchip lan966x ethernet serdes PHY driver for interfaces
> > available in the lan966x SoC.
> >
> > Signed-off-by: Horatiu Vultur <[email protected]>
> > ---
> > drivers/phy/microchip/Kconfig | 8 +
> > drivers/phy/microchip/Makefile | 1 +
> > drivers/phy/microchip/lan966x_serdes.c | 540 ++++++++++++++++++++
> > drivers/phy/microchip/lan966x_serdes_regs.h | 482 +++++++++++++++++
> > 4 files changed, 1031 insertions(+)
> > create mode 100644 drivers/phy/microchip/lan966x_serdes.c
> > create mode 100644 drivers/phy/microchip/lan966x_serdes_regs.h
> >
> > diff --git a/drivers/phy/microchip/Kconfig b/drivers/phy/microchip/Kconfig
> > index 3728a284bf64..38039ed0754c 100644
> > --- a/drivers/phy/microchip/Kconfig
> > +++ b/drivers/phy/microchip/Kconfig
> > @@ -11,3 +11,11 @@ config PHY_SPARX5_SERDES
> > depends on HAS_IOMEM
> > help
> > Enable this for support of the 10G/25G SerDes on Microchip Sparx5.
> > +
> > +config PHY_LAN966X_SERDES
> > + tristate "SerDes PHY driver for Microchip LAN966X"
> > + select GENERIC_PHY
> > + depends on OF
> > + depends on MFD_SYSCON
> > + help
> > + Enable this for supporting SerDes muxing with Microchip LAN966X
> > diff --git a/drivers/phy/microchip/Makefile b/drivers/phy/microchip/Makefile
> > index 7b98345712aa..fd73b87960a5 100644
> > --- a/drivers/phy/microchip/Makefile
> > +++ b/drivers/phy/microchip/Makefile
> > @@ -4,3 +4,4 @@
> > #
> >
> > obj-$(CONFIG_PHY_SPARX5_SERDES) := sparx5_serdes.o
> > +obj-$(CONFIG_PHY_LAN966X_SERDES) := lan966x_serdes.o
> > diff --git a/drivers/phy/microchip/lan966x_serdes.c b/drivers/phy/microchip/lan966x_serdes.c
> > new file mode 100644
> > index 000000000000..e663bb9186a8
> > --- /dev/null
> > +++ b/drivers/phy/microchip/lan966x_serdes.c
> > @@ -0,0 +1,540 @@
> > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
>
> Any reason why this is dual licensed, why not GPL only?
No reason, I think I copy this from a different file.
>
> > +
> > +#include <linux/err.h>
> > +#include <linux/module.h>
> > +#include <linux/of.h>
> > +#include <linux/of_platform.h>
> > +#include <linux/phy.h>
>
> Why this header?
This is required because we use the type 'phy_interface_t'
>
> > +#include <linux/phy/phy.h>
> > +#include <linux/platform_device.h>
> > +#include <dt-bindings/phy/phy-lan966x-serdes.h>
> > +#include "lan966x_serdes_regs.h"
> > +
> > +#define lan_offset_(id, tinst, tcnt, \
> > + gbase, ginst, gcnt, gwidth, \
> > + raddr, rinst, rcnt, rwidth) \
> > + (gbase + ((ginst) * gwidth) + raddr + ((rinst) * rwidth))
> > +#define lan_offset(...) lan_offset_(__VA_ARGS__)
> > +
> > +static void lan_rmw_(u32 val, u32 mask, void __iomem *mem, u32 offset)
> > +{
> > + u32 v;
> > +
> > + v = readl(mem + offset);
> > + v = (v & ~mask) | (val & mask);
> > + writel(v, mem + offset);
> > +}
> > +
> > +#define lan_rmw(val, mask, reg, off) \
> > + lan_rmw_(val, mask, reg, lan_offset(off))
> > +
> > +struct serdes_ctrl {
> > + void __iomem *regs;
> > + struct device *dev;
> > + struct phy *phys[SERDES_MAX];
> > + int ref125;
> > +};
> > +
> > +struct serdes_macro {
> > + u8 idx;
> > + int port;
> > + struct serdes_ctrl *ctrl;
> > + int speed;
> > + phy_interface_t mode;
> > +};
> > +
> > +enum lan966x_sd6g40_mode {
> > + LAN966X_SD6G40_MODE_QSGMII,
> > + LAN966X_SD6G40_MODE_SGMII,
> > +};
> > +
> > +enum lan966x_sd6g40_ltx2rx {
> > + LAN966X_SD6G40_TX2RX_LOOP_NONE,
> > + LAN966X_SD6G40_LTX2RX
> > +};
> > +
> > +struct lan966x_sd6g40_setup_args {
> > + enum lan966x_sd6g40_mode mode;
> > + enum lan966x_sd6g40_ltx2rx tx2rx_loop;
> > + bool txinvert;
> > + bool rxinvert;
> > + bool refclk125M;
> > + bool mute;
> > +};
> > +
> > +struct lan966x_sd6g40_mode_args {
> > + enum lan966x_sd6g40_mode mode;
> > + u8 lane_10bit_sel;
> > + u8 mpll_multiplier;
> > + u8 ref_clkdiv2;
> > + u8 tx_rate;
> > + u8 rx_rate;
> > +};
> > +
> > +struct lan966x_sd6g40_setup {
> > + u8 rx_term_en;
> > + u8 lane_10bit_sel;
> > + u8 tx_invert;
> > + u8 rx_invert;
> > + u8 mpll_multiplier;
> > + u8 lane_loopbk_en;
> > + u8 ref_clkdiv2;
> > + u8 tx_rate;
> > + u8 rx_rate;
> > +};
> > +
> > +static int lan966x_sd6g40_reg_cfg(struct serdes_macro *macro,
> > + struct lan966x_sd6g40_setup *res_struct,
> > + u32 idx)
> > +{
> > + u32 value;
> > +
> > + /* Note: SerDes HSIO is configured in 1G_LAN mode */
> > + lan_rmw(HSIO_SD_CFG_LANE_10BIT_SEL(res_struct->lane_10bit_sel) |
> > + HSIO_SD_CFG_RX_RATE(res_struct->rx_rate) |
> > + HSIO_SD_CFG_TX_RATE(res_struct->tx_rate) |
> > + HSIO_SD_CFG_TX_INVERT(res_struct->tx_invert) |
> > + HSIO_SD_CFG_RX_INVERT(res_struct->rx_invert) |
> > + HSIO_SD_CFG_LANE_LOOPBK_EN(res_struct->lane_loopbk_en) |
> > + HSIO_SD_CFG_RX_RESET(0) |
> > + HSIO_SD_CFG_TX_RESET(0),
> > + HSIO_SD_CFG_LANE_10BIT_SEL_M |
> > + HSIO_SD_CFG_RX_RATE_M |
> > + HSIO_SD_CFG_TX_RATE_M |
> > + HSIO_SD_CFG_TX_INVERT_M |
> > + HSIO_SD_CFG_RX_INVERT_M |
> > + HSIO_SD_CFG_LANE_LOOPBK_EN_M |
> > + HSIO_SD_CFG_RX_RESET_M |
> > + HSIO_SD_CFG_TX_RESET_M,
> > + macro->ctrl->regs, HSIO_SD_CFG(idx));
> > +
> > + lan_rmw(HSIO_MPLL_CFG_MPLL_MULTIPLIER(res_struct->mpll_multiplier) |
> > + HSIO_MPLL_CFG_REF_CLKDIV2(res_struct->ref_clkdiv2),
> > + HSIO_MPLL_CFG_MPLL_MULTIPLIER_M |
> > + HSIO_MPLL_CFG_REF_CLKDIV2_M,
> > + macro->ctrl->regs, HSIO_MPLL_CFG(idx));
> > +
> > + lan_rmw(HSIO_SD_CFG_RX_TERM_EN(res_struct->rx_term_en),
> > + HSIO_SD_CFG_RX_TERM_EN_M,
> > + macro->ctrl->regs, HSIO_SD_CFG(idx));
> > +
> > + lan_rmw(HSIO_MPLL_CFG_REF_SSP_EN(1),
> > + HSIO_MPLL_CFG_REF_SSP_EN_M,
> > + macro->ctrl->regs, HSIO_MPLL_CFG(idx));
> > +
> > + usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
> > +
> > + lan_rmw(HSIO_SD_CFG_PHY_RESET(0),
> > + HSIO_SD_CFG_PHY_RESET_M,
> > + macro->ctrl->regs, HSIO_SD_CFG(idx));
> > +
> > + usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
> > +
> > + lan_rmw(HSIO_MPLL_CFG_MPLL_EN(1),
> > + HSIO_MPLL_CFG_MPLL_EN_M,
> > + macro->ctrl->regs, HSIO_MPLL_CFG(idx));
> > +
> > + usleep_range(7 * USEC_PER_MSEC, 8 * USEC_PER_MSEC);
> > +
> > + value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
> > + value = HSIO_SD_STAT_MPLL_STATE_X(value);
> > + if (value != 0x1) {
> > + pr_info("Unexpected sd_sd_stat[%u] mpll_state was 0x1 but is 0x%x\n",
> > + idx, value);
>
> maybe an err log? Also why not use dev_err here?
I will use dev_err.
>
> > + return -EIO;
> > + }
> > +
> > + lan_rmw(HSIO_SD_CFG_TX_CM_EN(1),
> > + HSIO_SD_CFG_TX_CM_EN_M,
> > + macro->ctrl->regs, HSIO_SD_CFG(idx));
> > +
> > + usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
> > +
> > + value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
> > + value = HSIO_SD_STAT_TX_CM_STATE_X(value);
> > + if (value != 0x1) {
> > + pr_info("Unexpected sd_sd_stat[%u] tx_cm_state was 0x1 but is 0x%x\n",
> > + idx, value);
>
> here as well
>
> > + return -EIO;
> > + }
> > +
> > + lan_rmw(HSIO_SD_CFG_RX_PLL_EN(1) |
> > + HSIO_SD_CFG_TX_EN(1),
> > + HSIO_SD_CFG_RX_PLL_EN_M |
> > + HSIO_SD_CFG_TX_EN_M,
> > + macro->ctrl->regs, HSIO_SD_CFG(idx));
> > +
> > + usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
> > +
> > + /* Waiting for serdes 0 rx DPLL to lock... */
> > + value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
> > + value = HSIO_SD_STAT_RX_PLL_STATE_X(value);
> > + if (value != 0x1) {
> > + pr_info("Unexpected sd_sd_stat[%u] rx_pll_state was 0x1 but is 0x%x\n",
> > + idx, value);
> > + return -EIO;
> > + }
> > +
> > + /* Waiting for serdes 0 tx operational... */
> > + value = readl(macro->ctrl->regs + lan_offset(HSIO_SD_STAT(idx)));
> > + value = HSIO_SD_STAT_TX_STATE_X(value);
> > + if (value != 0x1) {
> > + pr_info("Unexpected sd_sd_stat[%u] tx_state was 0x1 but is 0x%x\n",
> > + idx, value);
> > + return -EIO;
> > + }
> > +
> > + lan_rmw(HSIO_SD_CFG_TX_DATA_EN(1) |
> > + HSIO_SD_CFG_RX_DATA_EN(1),
> > + HSIO_SD_CFG_TX_DATA_EN_M |
> > + HSIO_SD_CFG_RX_DATA_EN_M,
> > + macro->ctrl->regs, HSIO_SD_CFG(idx));
> > +
> > + return 0;
> > +}
> > +
> > +static int lan966x_sd6g40_get_conf_from_mode(struct serdes_macro *macro,
> > + enum lan966x_sd6g40_mode f_mode,
> > + bool ref125M,
> > + struct lan966x_sd6g40_mode_args *ret_val)
> > +{
> > + switch (f_mode) {
> > + case LAN966X_SD6G40_MODE_QSGMII:
> > + ret_val->lane_10bit_sel = 0;
> > + if (ref125M) {
> > + ret_val->mpll_multiplier = 40;
> > + ret_val->ref_clkdiv2 = 0x1;
> > + ret_val->tx_rate = 0x0;
> > + ret_val->rx_rate = 0x0;
> > + } else {
> > + ret_val->mpll_multiplier = 100;
> > + ret_val->ref_clkdiv2 = 0x0;
> > + ret_val->tx_rate = 0x0;
> > + ret_val->rx_rate = 0x0;
> > + }
> > + break;
>
> empty line here please
>
> > + case LAN966X_SD6G40_MODE_SGMII:
> > + ret_val->lane_10bit_sel = 1;
> > + if (ref125M) {
> > + ret_val->mpll_multiplier = macro->speed == SPEED_2500 ? 50 : 40;
> > + ret_val->ref_clkdiv2 = 0x1;
> > + ret_val->tx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
> > + ret_val->rx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
> > + } else {
> > + ret_val->mpll_multiplier = macro->speed == SPEED_2500 ? 125 : 100;
> > + ret_val->ref_clkdiv2 = 0x0;
> > + ret_val->tx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
> > + ret_val->rx_rate = macro->speed == SPEED_2500 ? 0x1 : 0x2;
> > + }
> > + break;
> > + default:
> > + return -EOPNOTSUPP;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int lan966x_calc_sd6g40_setup_lane(struct serdes_macro *macro,
> > + struct lan966x_sd6g40_setup_args config,
> > + struct lan966x_sd6g40_setup *ret_val)
> > +{
> > + struct lan966x_sd6g40_mode_args sd6g40_mode;
> > + struct lan966x_sd6g40_mode_args *mode_args = &sd6g40_mode;
> > + int ret;
> > +
> > + ret = lan966x_sd6g40_get_conf_from_mode(macro, config.mode,
> > + config.refclk125M, mode_args);
> > + if (ret)
> > + return ret;
> > +
> > + ret_val->lane_10bit_sel = mode_args->lane_10bit_sel;
> > + ret_val->rx_rate = mode_args->rx_rate;
> > + ret_val->tx_rate = mode_args->tx_rate;
> > + ret_val->mpll_multiplier = mode_args->mpll_multiplier;
> > + ret_val->ref_clkdiv2 = mode_args->ref_clkdiv2;
> > + ret_val->rx_term_en = 0;
> > +
> > + if (config.tx2rx_loop == LAN966X_SD6G40_LTX2RX)
> > + ret_val->lane_loopbk_en = 1;
> > + else
> > + ret_val->lane_loopbk_en = 0;
> > +
> > + if (config.txinvert)
> > + ret_val->tx_invert = 1;
> > + else
> > + ret_val->tx_invert = 0;
>
> ret_val->tx_invert = !!config.txinvert;
>
> > +
> > + if (config.rxinvert)
> > + ret_val->rx_invert = 1;
> > + else
> > + ret_val->rx_invert = 0;
> > +
> > + return 0;
> > +}
> > +
> > +static int lan966x_sd6g40_setup_lane(struct serdes_macro *macro,
> > + struct lan966x_sd6g40_setup_args config,
> > + u32 idx)
> > +{
> > + struct lan966x_sd6g40_setup calc_results;
> > + int ret;
> > +
> > + memset(&calc_results, 0x0, sizeof(calc_results));
>
> why not initialize calc_results and skip memeset
>
> struct lan966x_sd6g40_setup calc_results = {};
> > +
> > + ret = lan966x_calc_sd6g40_setup_lane(macro, config, &calc_results);
> > + if (ret)
> > + return ret;
> > +
> > + return lan966x_sd6g40_reg_cfg(macro, &calc_results, idx);
> > +}
> > +
> > +static int lan966x_sd6g40_setup(struct serdes_macro *macro, u32 idx, int mode)
> > +{
> > + struct lan966x_sd6g40_setup_args conf;
> > +
> > + memset(&conf, 0x0, sizeof(conf));
>
> here too
>
> > + conf.refclk125M = macro->ctrl->ref125;
> > +
> > + if (mode == PHY_INTERFACE_MODE_QSGMII)
> > + conf.mode = LAN966X_SD6G40_MODE_QSGMII;
> > + else
> > + conf.mode = LAN966X_SD6G40_MODE_SGMII;
> > +
> > + return lan966x_sd6g40_setup_lane(macro, conf, idx);
> > +}
> > +
> > +struct serdes_mux {
> > + u8 idx;
> > + u8 port;
> > + enum phy_mode mode;
> > + int submode;
> > + u32 mask;
> > + u32 mux;
> > +};
> > +
> > +#define SERDES_MUX(_idx, _port, _mode, _submode, _mask, _mux) { \
> > + .idx = _idx, \
> > + .port = _port, \
> > + .mode = _mode, \
> > + .submode = _submode, \
> > + .mask = _mask, \
> > + .mux = _mux, \
> > +}
>
> structs and macros at the top fo the file pls
>
> > +
> > +#define SERDES_MUX_GMII(i, p, m, c) \
> > + SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_GMII, m, c)
> > +#define SERDES_MUX_SGMII(i, p, m, c) \
> > + SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_SGMII, m, c)
> > +#define SERDES_MUX_QSGMII(i, p, m, c) \
> > + SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_QSGMII, m, c)
> > +#define SERDES_MUX_RGMII(i, p, m, c) \
> > + SERDES_MUX(i, p, PHY_MODE_ETHERNET, PHY_INTERFACE_MODE_RGMII, m, c)
> > +
> > +static const struct serdes_mux lan966x_serdes_muxes[] = {
> > + SERDES_MUX_QSGMII(SERDES6G(1), 0, HSIO_HW_CFG_QSGMII_ENA_M,
> > + HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
> > + SERDES_MUX_QSGMII(SERDES6G(1), 1, HSIO_HW_CFG_QSGMII_ENA_M,
> > + HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
> > + SERDES_MUX_QSGMII(SERDES6G(1), 2, HSIO_HW_CFG_QSGMII_ENA_M,
> > + HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
> > + SERDES_MUX_QSGMII(SERDES6G(1), 3, HSIO_HW_CFG_QSGMII_ENA_M,
> > + HSIO_HW_CFG_QSGMII_ENA(BIT(0))),
> > +
> > + SERDES_MUX_QSGMII(SERDES6G(2), 4, HSIO_HW_CFG_QSGMII_ENA_M,
> > + HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
> > + SERDES_MUX_QSGMII(SERDES6G(2), 5, HSIO_HW_CFG_QSGMII_ENA_M,
> > + HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
> > + SERDES_MUX_QSGMII(SERDES6G(2), 6, HSIO_HW_CFG_QSGMII_ENA_M,
> > + HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
> > + SERDES_MUX_QSGMII(SERDES6G(2), 7, HSIO_HW_CFG_QSGMII_ENA_M,
> > + HSIO_HW_CFG_QSGMII_ENA(BIT(1))),
> > +
> > + SERDES_MUX_GMII(PHY(0), 0, HSIO_HW_CFG_GMII_ENA_M,
> > + HSIO_HW_CFG_GMII_ENA(BIT(0))),
> > + SERDES_MUX_GMII(PHY(1), 1, HSIO_HW_CFG_GMII_ENA_M,
> > + HSIO_HW_CFG_GMII_ENA(BIT(1))),
> > +
> > + SERDES_MUX_SGMII(SERDES6G(0), 0, HSIO_HW_CFG_SD6G_0_CFG_M, 0),
> > + SERDES_MUX_SGMII(SERDES6G(1), 1, HSIO_HW_CFG_SD6G_1_CFG_M, 0),
> > + SERDES_MUX_SGMII(SERDES6G(0), 2, HSIO_HW_CFG_SD6G_0_CFG_M,
> > + HSIO_HW_CFG_SD6G_0_CFG(1)),
> > + SERDES_MUX_SGMII(SERDES6G(1), 3, HSIO_HW_CFG_SD6G_1_CFG_M,
> > + HSIO_HW_CFG_SD6G_1_CFG(1)),
> > +
> > + SERDES_MUX_RGMII(RGMII(0), 2, HSIO_HW_CFG_RGMII_0_CFG_M |
> > + HSIO_HW_CFG_RGMII_ENA_M,
> > + HSIO_HW_CFG_RGMII_0_CFG(BIT(0)) |
> > + HSIO_HW_CFG_RGMII_ENA(BIT(0))),
> > + SERDES_MUX_RGMII(RGMII(1), 3, HSIO_HW_CFG_RGMII_1_CFG_M |
> > + HSIO_HW_CFG_RGMII_ENA_M,
> > + HSIO_HW_CFG_RGMII_1_CFG(BIT(0)) |
> > + HSIO_HW_CFG_RGMII_ENA(BIT(1))),
> > + SERDES_MUX_RGMII(RGMII(0), 5, HSIO_HW_CFG_RGMII_0_CFG_M |
> > + HSIO_HW_CFG_RGMII_ENA_M,
> > + HSIO_HW_CFG_RGMII_0_CFG(BIT(0)) |
> > + HSIO_HW_CFG_RGMII_ENA(BIT(0))),
> > + SERDES_MUX_RGMII(RGMII(1), 6, HSIO_HW_CFG_RGMII_1_CFG_M |
> > + HSIO_HW_CFG_RGMII_ENA_M,
> > + HSIO_HW_CFG_RGMII_1_CFG(BIT(0)) |
> > + HSIO_HW_CFG_RGMII_ENA(BIT(1))),
> > +};
> > +
> > +static int serdes_set_mode(struct phy *phy, enum phy_mode mode, int submode)
> > +{
> > + struct serdes_macro *macro = phy_get_drvdata(phy);
> > + unsigned int i;
> > + int val;
> > +
> > + /* As of now only PHY_MODE_ETHERNET is supported */
> > + if (mode != PHY_MODE_ETHERNET)
> > + return -EOPNOTSUPP;
> > +
> > + for (i = 0; i < ARRAY_SIZE(lan966x_serdes_muxes); i++) {
> > + if (macro->idx != lan966x_serdes_muxes[i].idx ||
> > + mode != lan966x_serdes_muxes[i].mode ||
> > + submode != lan966x_serdes_muxes[i].submode ||
> > + macro->port != lan966x_serdes_muxes[i].port)
> > + continue;
> > +
> > + val = readl(macro->ctrl->regs + lan_offset(HSIO_HW_CFG));
> > + val |= lan966x_serdes_muxes[i].mux;
> > + lan_rmw(val, lan966x_serdes_muxes[i].mask,
> > + macro->ctrl->regs, HSIO_HW_CFG);
> > +
> > + macro->mode = lan966x_serdes_muxes[i].submode;
> > +
> > + if (macro->idx < PHY_MAX)
> > + return 0;
> > +
> > + if (macro->idx < SERDES6G_MAX)
> > + return lan966x_sd6g40_setup(macro,
> > + macro->idx - (PHY_MAX + 1),
> > + macro->mode);
> > +
> > + if (macro->idx < RGMII_MAX)
> > + return 0;
> > +
> > + return -EOPNOTSUPP;
> > + }
> > +
> > + return -EINVAL;
> > +}
> > +
> > +static int serdes_set_speed(struct phy *phy, int speed)
> > +{
> > + struct serdes_macro *macro = phy_get_drvdata(phy);
> > +
> > + macro->speed = speed;
> > +
> > + return lan966x_sd6g40_setup(macro, macro->idx - (PHY_MAX + 1),
> > + macro->mode);
> > +}
> > +
> > +static const struct phy_ops serdes_ops = {
> > + .set_mode = serdes_set_mode,
> > + .set_speed = serdes_set_speed,
> > + .owner = THIS_MODULE,
> > +};
> > +
> > +static struct phy *serdes_simple_xlate(struct device *dev,
> > + struct of_phandle_args *args)
> > +{
> > + struct serdes_ctrl *ctrl = dev_get_drvdata(dev);
> > + unsigned int port, idx, i;
> > +
> > + if (args->args_count != 2)
> > + return ERR_PTR(-EINVAL);
> > +
> > + port = args->args[0];
> > + idx = args->args[1];
> > +
> > + for (i = 0; i < SERDES_MAX; i++) {
> > + struct serdes_macro *macro = phy_get_drvdata(ctrl->phys[i]);
> > +
> > + if (idx != macro->idx)
> > + continue;
> > +
> > + macro->port = port;
> > + return ctrl->phys[i];
> > + }
> > +
> > + return ERR_PTR(-ENODEV);
> > +}
> > +
> > +static int serdes_phy_create(struct serdes_ctrl *ctrl, u8 idx, struct phy **phy)
> > +{
> > + struct serdes_macro *macro;
> > +
> > + *phy = devm_phy_create(ctrl->dev, NULL, &serdes_ops);
> > + if (IS_ERR(*phy))
> > + return PTR_ERR(*phy);
> > +
> > + macro = devm_kzalloc(ctrl->dev, sizeof(*macro), GFP_KERNEL);
> > + if (!macro)
> > + return -ENOMEM;
> > +
> > + macro->idx = idx;
> > + macro->ctrl = ctrl;
> > + macro->speed = SPEED_1000;
> > + macro->port = -1;
> > +
> > + phy_set_drvdata(*phy, macro);
> > +
> > + return 0;
> > +}
> > +
> > +static int serdes_probe(struct platform_device *pdev)
> > +{
> > + struct phy_provider *provider;
> > + struct serdes_ctrl *ctrl;
> > + void __iomem *hw_stat;
> > + unsigned int i;
> > + u32 val;
> > + int ret;
> > +
> > + ctrl = devm_kzalloc(&pdev->dev, sizeof(*ctrl), GFP_KERNEL);
> > + if (!ctrl)
> > + return -ENOMEM;
> > +
> > + ctrl->dev = &pdev->dev;
> > + ctrl->regs = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
> > + if (IS_ERR(ctrl->regs))
> > + return PTR_ERR(ctrl->regs);
> > +
> > + hw_stat = devm_platform_get_and_ioremap_resource(pdev, 1, NULL);
> > + if (IS_ERR(hw_stat))
> > + return PTR_ERR(hw_stat);
> > +
> > + for (i = 0; i < SERDES_MAX; i++) {
> > + ret = serdes_phy_create(ctrl, i, &ctrl->phys[i]);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + val = readl(hw_stat);
> > + val = (GENMASK(4, 3) & val) >> 3;
> > + ctrl->ref125 = (val == 1 || val == 2);
>
> lots of magic values pls define them
>
> > +
> > + dev_set_drvdata(&pdev->dev, ctrl);
> > +
> > + provider = devm_of_phy_provider_register(ctrl->dev,
> > + serdes_simple_xlate);
> > +
> > + return PTR_ERR_OR_ZERO(provider);
> > +}
> > +
> > +static const struct of_device_id serdes_ids[] = {
> > + { .compatible = "microchip,lan966x-serdes", },
> > + {},
> > +};
> > +MODULE_DEVICE_TABLE(of, serdes_ids);
> > +
> > +static struct platform_driver mscc_lan966x_serdes = {
> > + .probe = serdes_probe,
> > + .driver = {
> > + .name = "microchip,lan966x-serdes",
> > + .of_match_table = of_match_ptr(serdes_ids),
> > + },
> > +};
>
> No MODULE_LICENSE()?
>
> > +
> > +module_platform_driver(mscc_lan966x_serdes);
> > diff --git a/drivers/phy/microchip/lan966x_serdes_regs.h b/drivers/phy/microchip/lan966x_serdes_regs.h
> > new file mode 100644
> > index 000000000000..c3d3d16c1e97
> > --- /dev/null
> > +++ b/drivers/phy/microchip/lan966x_serdes_regs.h
> > @@ -0,0 +1,482 @@
> > +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
> > +/*
> > + * Microchip LAN966x Switch driver
> > + *
> > + * License: Dual MIT/GPL
> > + * Copyright (c) 2020 Microchip Technology Inc.
> > + */
> > +
> > +/* This file is autogenerated by cml-utils 2021-05-12 15:48:55 +0200.
>
> what is this cml-utils?
This is an internal tool that helps to generate these register files.
I should remove this message.
>
> > + * Commit ID: dbe188f718027a2c414b90d45f152b73468cbc5c (dirty)
> > + */
> > +
> > +#ifndef _LAN966X_HSIO_REGS_H_
> > +#define _LAN966X_HSIO_REGS_H_
> > +
> > +#include <linux/bitops.h>
> > +
> > +#define LAN966X_BUILD_ID_REG GCB_BUILDID
> > +enum lan966x_target {
> > + TARGET_HSIO = 32,
> > + NUM_TARGETS = 66
> > +};
> > +
> > +#define __REG(...) __VA_ARGS__
> > +
> > +/* HSIO:SYNC_ETH_CFG:SYNC_ETH_CFG */
> > +#define HSIO_SYNC_ETH_CFG(r) __REG(TARGET_HSIO,\
> > + 0, 1, 0, 0, 1, 8, 0, r, 2, 4)
> > +
> > +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_SRC(x) (((x) << 4) & GENMASK(6, 4))
> > +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_SRC_M GENMASK(6, 4)
> > +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_SRC_X(x) (((x) & GENMASK(6, 4)) >> 4)
> > +
> > +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_DIV(x) (((x) << 1) & GENMASK(3, 1))
> > +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_DIV_M GENMASK(3, 1)
> > +#define HSIO_SYNC_ETH_CFG_SEL_RECO_CLK_DIV_X(x) (((x) & GENMASK(3, 1)) >> 1)
> > +
> > +#define HSIO_SYNC_ETH_CFG_RECO_CLK_ENA(x) ((x) & GENMASK(0, 0))
> > +#define HSIO_SYNC_ETH_CFG_RECO_CLK_ENA_M GENMASK(0, 0)
> > +#define HSIO_SYNC_ETH_CFG_RECO_CLK_ENA_X(x) ((x) & GENMASK(0, 0))
> > +
> > +/* HSIO:SD:SD_CFG */
> > +#define HSIO_SD_CFG(g) __REG(TARGET_HSIO,\
> > + 0, 1, 8, g, 3, 32, 0, 0, 1, 4)
> > +
> > +#define HSIO_SD_CFG_TEST_POWERDOWN(x) (((x) << 28) & GENMASK(28, 28))
> > +#define HSIO_SD_CFG_TEST_POWERDOWN_M GENMASK(28, 28)
> > +#define HSIO_SD_CFG_TEST_POWERDOWN_X(x) (((x) & GENMASK(28, 28)) >> 28)
> > +
> > +#define HSIO_SD_CFG_PHY_RESET(x) (((x) << 27) & GENMASK(27, 27))
> > +#define HSIO_SD_CFG_PHY_RESET_M GENMASK(27, 27)
> > +#define HSIO_SD_CFG_PHY_RESET_X(x) (((x) & GENMASK(27, 27)) >> 27)
> > +
> > +#define HSIO_SD_CFG_RX_LOS_FILT_CNT(x) (((x) << 20) & GENMASK(26, 20))
> > +#define HSIO_SD_CFG_RX_LOS_FILT_CNT_M GENMASK(26, 20)
> > +#define HSIO_SD_CFG_RX_LOS_FILT_CNT_X(x) (((x) & GENMASK(26, 20)) >> 20)
> > +
> > +#define HSIO_SD_CFG_TX_VBOOST_EN(x) (((x) << 19) & GENMASK(19, 19))
> > +#define HSIO_SD_CFG_TX_VBOOST_EN_M GENMASK(19, 19)
> > +#define HSIO_SD_CFG_TX_VBOOST_EN_X(x) (((x) & GENMASK(19, 19)) >> 19)
> > +
> > +#define HSIO_SD_CFG_TX_RESET(x) (((x) << 18) & GENMASK(18, 18))
> > +#define HSIO_SD_CFG_TX_RESET_M GENMASK(18, 18)
> > +#define HSIO_SD_CFG_TX_RESET_X(x) (((x) & GENMASK(18, 18)) >> 18)
> > +
> > +#define HSIO_SD_CFG_TX_RATE(x) (((x) << 16) & GENMASK(17, 16))
> > +#define HSIO_SD_CFG_TX_RATE_M GENMASK(17, 16)
> > +#define HSIO_SD_CFG_TX_RATE_X(x) (((x) & GENMASK(17, 16)) >> 16)
> > +
> > +#define HSIO_SD_CFG_TX_INVERT(x) (((x) << 15) & GENMASK(15, 15))
> > +#define HSIO_SD_CFG_TX_INVERT_M GENMASK(15, 15)
> > +#define HSIO_SD_CFG_TX_INVERT_X(x) (((x) & GENMASK(15, 15)) >> 15)
> > +
> > +#define HSIO_SD_CFG_TX_EN(x) (((x) << 14) & GENMASK(14, 14))
> > +#define HSIO_SD_CFG_TX_EN_M GENMASK(14, 14)
> > +#define HSIO_SD_CFG_TX_EN_X(x) (((x) & GENMASK(14, 14)) >> 14)
> > +
> > +#define HSIO_SD_CFG_TX_DETECT_RX_REQ(x) (((x) << 13) & GENMASK(13, 13))
> > +#define HSIO_SD_CFG_TX_DETECT_RX_REQ_M GENMASK(13, 13)
> > +#define HSIO_SD_CFG_TX_DETECT_RX_REQ_X(x) (((x) & GENMASK(13, 13)) >> 13)
> > +
> > +#define HSIO_SD_CFG_TX_DATA_EN(x) (((x) << 12) & GENMASK(12, 12))
> > +#define HSIO_SD_CFG_TX_DATA_EN_M GENMASK(12, 12)
> > +#define HSIO_SD_CFG_TX_DATA_EN_X(x) (((x) & GENMASK(12, 12)) >> 12)
> > +
> > +#define HSIO_SD_CFG_TX_CM_EN(x) (((x) << 11) & GENMASK(11, 11))
> > +#define HSIO_SD_CFG_TX_CM_EN_M GENMASK(11, 11)
> > +#define HSIO_SD_CFG_TX_CM_EN_X(x) (((x) & GENMASK(11, 11)) >> 11)
> > +
> > +#define HSIO_SD_CFG_LANE_10BIT_SEL(x) (((x) << 10) & GENMASK(10, 10))
> > +#define HSIO_SD_CFG_LANE_10BIT_SEL_M GENMASK(10, 10)
> > +#define HSIO_SD_CFG_LANE_10BIT_SEL_X(x) (((x) & GENMASK(10, 10)) >> 10)
> > +
> > +#define HSIO_SD_CFG_RX_TERM_EN(x) (((x) << 9) & GENMASK(9, 9))
> > +#define HSIO_SD_CFG_RX_TERM_EN_M GENMASK(9, 9)
> > +#define HSIO_SD_CFG_RX_TERM_EN_X(x) (((x) & GENMASK(9, 9)) >> 9)
> > +
> > +#define HSIO_SD_CFG_RX_RESET(x) (((x) << 8) & GENMASK(8, 8))
> > +#define HSIO_SD_CFG_RX_RESET_M GENMASK(8, 8)
> > +#define HSIO_SD_CFG_RX_RESET_X(x) (((x) & GENMASK(8, 8)) >> 8)
> > +
> > +#define HSIO_SD_CFG_RX_RATE(x) (((x) << 6) & GENMASK(7, 6))
> > +#define HSIO_SD_CFG_RX_RATE_M GENMASK(7, 6)
> > +#define HSIO_SD_CFG_RX_RATE_X(x) (((x) & GENMASK(7, 6)) >> 6)
> > +
> > +#define HSIO_SD_CFG_RX_PLL_EN(x) (((x) << 5) & GENMASK(5, 5))
> > +#define HSIO_SD_CFG_RX_PLL_EN_M GENMASK(5, 5)
> > +#define HSIO_SD_CFG_RX_PLL_EN_X(x) (((x) & GENMASK(5, 5)) >> 5)
> > +
> > +#define HSIO_SD_CFG_RX_LOS_EN(x) (((x) << 4) & GENMASK(4, 4))
> > +#define HSIO_SD_CFG_RX_LOS_EN_M GENMASK(4, 4)
> > +#define HSIO_SD_CFG_RX_LOS_EN_X(x) (((x) & GENMASK(4, 4)) >> 4)
> > +
> > +#define HSIO_SD_CFG_RX_INVERT(x) (((x) << 3) & GENMASK(3, 3))
> > +#define HSIO_SD_CFG_RX_INVERT_M GENMASK(3, 3)
> > +#define HSIO_SD_CFG_RX_INVERT_X(x) (((x) & GENMASK(3, 3)) >> 3)
> > +
> > +#define HSIO_SD_CFG_RX_DATA_EN(x) (((x) << 2) & GENMASK(2, 2))
> > +#define HSIO_SD_CFG_RX_DATA_EN_M GENMASK(2, 2)
> > +#define HSIO_SD_CFG_RX_DATA_EN_X(x) (((x) & GENMASK(2, 2)) >> 2)
> > +
> > +#define HSIO_SD_CFG_RX_ALIGN_EN(x) (((x) << 1) & GENMASK(1, 1))
> > +#define HSIO_SD_CFG_RX_ALIGN_EN_M GENMASK(1, 1)
> > +#define HSIO_SD_CFG_RX_ALIGN_EN_X(x) (((x) & GENMASK(1, 1)) >> 1)
> > +
> > +#define HSIO_SD_CFG_LANE_LOOPBK_EN(x) ((x) & GENMASK(0, 0))
> > +#define HSIO_SD_CFG_LANE_LOOPBK_EN_M GENMASK(0, 0)
> > +#define HSIO_SD_CFG_LANE_LOOPBK_EN_X(x) ((x) & GENMASK(0, 0))
> > +
> > +/* HSIO:SD:SD_CFG2 */
> > +#define HSIO_SD_CFG2(g) __REG(TARGET_HSIO,\
> > + 0, 1, 8, g, 3, 32, 4, 0, 1, 4)
> > +
> > +#define HSIO_SD_CFG2_RX_EQ(x) (((x) << 25) & GENMASK(27, 25))
> > +#define HSIO_SD_CFG2_RX_EQ_M GENMASK(27, 25)
> > +#define HSIO_SD_CFG2_RX_EQ_X(x) (((x) & GENMASK(27, 25)) >> 25)
>
> You should look at bitfield.h for helpers, you can skip these
I will update that.
> --
> ~Vinod
--
/Horatiu
On 20-10-21, 11:17, Horatiu Vultur wrote:
> The 10/19/2021 23:27, Vinod Koul wrote:
> >
> > On 15-10-21, 14:39, Horatiu Vultur wrote:
> > > Add the Microchip lan966x ethernet serdes PHY driver for interfaces
> > > available in the lan966x SoC.
> > >
> > > Signed-off-by: Horatiu Vultur <[email protected]>
> > > ---
> > > drivers/phy/microchip/Kconfig | 8 +
> > > drivers/phy/microchip/Makefile | 1 +
> > > drivers/phy/microchip/lan966x_serdes.c | 540 ++++++++++++++++++++
> > > drivers/phy/microchip/lan966x_serdes_regs.h | 482 +++++++++++++++++
> > > 4 files changed, 1031 insertions(+)
> > > create mode 100644 drivers/phy/microchip/lan966x_serdes.c
> > > create mode 100644 drivers/phy/microchip/lan966x_serdes_regs.h
> > >
> > > diff --git a/drivers/phy/microchip/Kconfig b/drivers/phy/microchip/Kconfig
> > > index 3728a284bf64..38039ed0754c 100644
> > > --- a/drivers/phy/microchip/Kconfig
> > > +++ b/drivers/phy/microchip/Kconfig
> > > @@ -11,3 +11,11 @@ config PHY_SPARX5_SERDES
> > > depends on HAS_IOMEM
> > > help
> > > Enable this for support of the 10G/25G SerDes on Microchip Sparx5.
> > > +
> > > +config PHY_LAN966X_SERDES
> > > + tristate "SerDes PHY driver for Microchip LAN966X"
> > > + select GENERIC_PHY
> > > + depends on OF
> > > + depends on MFD_SYSCON
> > > + help
> > > + Enable this for supporting SerDes muxing with Microchip LAN966X
> > > diff --git a/drivers/phy/microchip/Makefile b/drivers/phy/microchip/Makefile
> > > index 7b98345712aa..fd73b87960a5 100644
> > > --- a/drivers/phy/microchip/Makefile
> > > +++ b/drivers/phy/microchip/Makefile
> > > @@ -4,3 +4,4 @@
> > > #
> > >
> > > obj-$(CONFIG_PHY_SPARX5_SERDES) := sparx5_serdes.o
> > > +obj-$(CONFIG_PHY_LAN966X_SERDES) := lan966x_serdes.o
> > > diff --git a/drivers/phy/microchip/lan966x_serdes.c b/drivers/phy/microchip/lan966x_serdes.c
> > > new file mode 100644
> > > index 000000000000..e663bb9186a8
> > > --- /dev/null
> > > +++ b/drivers/phy/microchip/lan966x_serdes.c
> > > @@ -0,0 +1,540 @@
> > > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> >
> > Any reason why this is dual licensed, why not GPL only?
>
> No reason, I think I copy this from a different file.
Please have a chat with your lawyers on the correct license this should
have!
--
~Vinod
On 20/10/2021 21:05:49+0530, Vinod Koul wrote:
> > > > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > >
> > > Any reason why this is dual licensed, why not GPL only?
> >
> > No reason, I think I copy this from a different file.
>
> Please have a chat with your lawyers on the correct license this should
> have!
Dual GPL and MIT was Microsemi's policy, I'm not sure it carried over to
Microchip.
--
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
On 20-10-21, 17:49, Alexandre Belloni wrote:
> On 20/10/2021 21:05:49+0530, Vinod Koul wrote:
> > > > > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > > >
> > > > Any reason why this is dual licensed, why not GPL only?
> > >
> > > No reason, I think I copy this from a different file.
> >
> > Please have a chat with your lawyers on the correct license this should
> > have!
> Dual GPL and MIT was Microsemi's policy, I'm not sure it carried over to
> Microchip.
That is why they need to talk to someone and decide what license
applies :)
--
~Vinod
The 10/21/2021 11:40, Vinod Koul wrote:
>
> On 20-10-21, 17:49, Alexandre Belloni wrote:
> > On 20/10/2021 21:05:49+0530, Vinod Koul wrote:
> > > > > > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > > > >
> > > > > Any reason why this is dual licensed, why not GPL only?
> > > >
> > > > No reason, I think I copy this from a different file.
> > >
> > > Please have a chat with your lawyers on the correct license this should
> > > have!
> > Dual GPL and MIT was Microsemi's policy, I'm not sure it carried over to
> > Microchip.
>
> That is why they need to talk to someone and decide what license
> applies :)
I have changed it to be the same as the one on sparx5 because also
sparx5 is a Microchip product. On sparx5 we used:
'SPDX-License-Identifier: GPL-2.0-or-later'
>
> --
> ~Vinod
--
/Horatiu
On 21-10-21, 11:10, Horatiu Vultur wrote:
> The 10/21/2021 11:40, Vinod Koul wrote:
> >
> > On 20-10-21, 17:49, Alexandre Belloni wrote:
> > > On 20/10/2021 21:05:49+0530, Vinod Koul wrote:
> > > > > > > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > > > > >
> > > > > > Any reason why this is dual licensed, why not GPL only?
> > > > >
> > > > > No reason, I think I copy this from a different file.
> > > >
> > > > Please have a chat with your lawyers on the correct license this should
> > > > have!
> > > Dual GPL and MIT was Microsemi's policy, I'm not sure it carried over to
> > > Microchip.
> >
> > That is why they need to talk to someone and decide what license
> > applies :)
>
> I have changed it to be the same as the one on sparx5 because also
> sparx5 is a Microchip product. On sparx5 we used:
> 'SPDX-License-Identifier: GPL-2.0-or-later'
Has the code been copied/derived from somewhere/auto generated from
scripts/tools or entirely written by you?
--
~Vinod
The 10/21/2021 23:19, Vinod Koul wrote:
>
> On 21-10-21, 11:10, Horatiu Vultur wrote:
> > The 10/21/2021 11:40, Vinod Koul wrote:
> > >
> > > On 20-10-21, 17:49, Alexandre Belloni wrote:
> > > > On 20/10/2021 21:05:49+0530, Vinod Koul wrote:
> > > > > > > > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > > > > > >
> > > > > > > Any reason why this is dual licensed, why not GPL only?
> > > > > >
> > > > > > No reason, I think I copy this from a different file.
> > > > >
> > > > > Please have a chat with your lawyers on the correct license this should
> > > > > have!
> > > > Dual GPL and MIT was Microsemi's policy, I'm not sure it carried over to
> > > > Microchip.
> > >
> > > That is why they need to talk to someone and decide what license
> > > applies :)
> >
> > I have changed it to be the same as the one on sparx5 because also
> > sparx5 is a Microchip product. On sparx5 we used:
> > 'SPDX-License-Identifier: GPL-2.0-or-later'
>
> Has the code been copied/derived from somewhere/auto generated from
> scripts/tools or entirely written by you?
Sorry for late reply, but I was out of office without access to the
emails.
The register file 'lan966x_serdes_regs.h' was autogenerated from some
internal scripts. Which takes the info from here [1] and generates these
header files. The reason why we generate them is that is more error proof
that writting them manually. We are doing the same for sparx5
registers[2]
The other file 'lan966x_serdes.c' was entirely written by me.
[1] https://github.com/microchip-ung/lan9668_reginfo
[2] https://elixir.bootlin.com/linux/latest/source/drivers/phy/microchip/sparx5_serdes_regs.h
>
> --
> ~Vinod
--
/Horatiu