* [U-Boot] [PATCH 1/4] MIPS: mscc: ocelot: Add ethernet nodes for Ocelot
2019-01-15 16:56 [U-Boot] [PATCH 0/4] Add network support for Ocelots SoCs Gregory CLEMENT
@ 2019-01-15 16:56 ` Gregory CLEMENT
2019-01-15 16:56 ` [U-Boot] [PATCH 2/4] net: add MSCC Ocelot switch support Gregory CLEMENT
` (2 subsequent siblings)
3 siblings, 0 replies; 6+ messages in thread
From: Gregory CLEMENT @ 2019-01-15 16:56 UTC (permalink / raw)
To: u-boot
Import Ethernet related nodes from Linux
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
---
arch/mips/dts/mscc,ocelot.dtsi | 97 +++++++++++++++++++++++++++++++++
arch/mips/dts/ocelot_pcb123.dts | 20 +++++++
2 files changed, 117 insertions(+)
diff --git a/arch/mips/dts/mscc,ocelot.dtsi b/arch/mips/dts/mscc,ocelot.dtsi
index 2592003103..4f3fe356c4 100644
--- a/arch/mips/dts/mscc,ocelot.dtsi
+++ b/arch/mips/dts/mscc,ocelot.dtsi
@@ -112,6 +112,98 @@
status = "disabled";
};
+ switch at 1010000 {
+ pinctrl-0 = <&miim1_pins>;
+ pinctrl-names = "default";
+
+ compatible = "mscc,vsc7514-switch";
+ reg = <0x1010000 0x10000>, /* VTSS_TO_SYS */
+ <0x1030000 0x10000>, /* VTSS_TO_REW */
+ <0x1080000 0x100>, /* VTSS_TO_DEVCPU_QS */
+ <0x10d0000 0x10000>, /* VTSS_TO_HSIO */
+ <0x11e0000 0x100>, /* VTSS_TO_DEV_0 */
+ <0x11f0000 0x100>, /* VTSS_TO_DEV_1 */
+ <0x1200000 0x100>, /* VTSS_TO_DEV_2 */
+ <0x1210000 0x100>, /* VTSS_TO_DEV_3 */
+ <0x1220000 0x100>, /* VTSS_TO_DEV_4 */
+ <0x1230000 0x100>, /* VTSS_TO_DEV_5 */
+ <0x1240000 0x100>, /* VTSS_TO_DEV_6 */
+ <0x1250000 0x100>, /* VTSS_TO_DEV_7 */
+ <0x1260000 0x100>, /* VTSS_TO_DEV_8 */
+ <0x1270000 0x100>, /* NA */
+ <0x1280000 0x100>, /* NA */
+ <0x1800000 0x80000>, /* VTSS_TO_QSYS */
+ <0x1880000 0x10000>; /* VTSS_TO_ANA */
+ reg-names = "sys", "rew", "qs", "hsio", "port0",
+ "port1", "port2", "port3", "port4", "port5",
+ "port6", "port7", "port8", "port9",
+ "port10", "qsys", "ana";
+ interrupts = <21 22>;
+ interrupt-names = "xtr", "inj";
+ status = "okay";
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port0: port at 0 {
+ reg = <0>;
+ };
+ port1: port at 1 {
+ reg = <1>;
+ };
+ port2: port at 2 {
+ reg = <2>;
+ };
+ port3: port at 3 {
+ reg = <3>;
+ };
+ port4: port at 4 {
+ reg = <4>;
+ };
+ port5: port at 5 {
+ reg = <5>;
+ };
+ port6: port at 6 {
+ reg = <6>;
+ };
+ port7: port at 7 {
+ reg = <7>;
+ };
+ port8: port at 8 {
+ reg = <8>;
+ };
+ port9: port at 9 {
+ reg = <9>;
+ };
+ port10: port at 10 {
+ reg = <10>;
+ };
+ };
+ };
+
+ mdio0: mdio at 107009c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "mscc,ocelot-miim";
+ reg = <0x107009c 0x24>, <0x10700f0 0x8>;
+ interrupts = <14>;
+ status = "disabled";
+
+ phy0: ethernet-phy at 0 {
+ reg = <0>;
+ };
+ phy1: ethernet-phy at 1 {
+ reg = <1>;
+ };
+ phy2: ethernet-phy at 2 {
+ reg = <2>;
+ };
+ phy3: ethernet-phy at 3 {
+ reg = <3>;
+ };
+ };
+
reset at 1070008 {
compatible = "mscc,ocelot-chip-reset";
reg = <0x1070008 0x4>;
@@ -144,6 +236,11 @@
function = "si";
};
+ miim1_pins: miim1-pins {
+ pins = "GPIO_14", "GPIO_15";
+ function = "miim1";
+ };
+
spi_cs2_pin: spi-cs2-pin {
pins = "GPIO_9";
function = "si";
diff --git a/arch/mips/dts/ocelot_pcb123.dts b/arch/mips/dts/ocelot_pcb123.dts
index c4cb7a1194..a4fa37001f 100644
--- a/arch/mips/dts/ocelot_pcb123.dts
+++ b/arch/mips/dts/ocelot_pcb123.dts
@@ -35,3 +35,23 @@
status = "okay";
mscc,sgpio-ports = <0x00FFFFFF>;
};
+
+&mdio0 {
+ status = "okay";
+};
+
+&port0 {
+ phy-handle = <&phy0>;
+};
+
+&port1 {
+ phy-handle = <&phy1>;
+};
+
+&port2 {
+ phy-handle = <&phy2>;
+};
+
+&port3 {
+ phy-handle = <&phy3>;
+};
--
2.20.1
^ permalink raw reply related [flat|nested] 6+ messages in thread* [U-Boot] [PATCH 2/4] net: add MSCC Ocelot switch support
2019-01-15 16:56 [U-Boot] [PATCH 0/4] Add network support for Ocelots SoCs Gregory CLEMENT
2019-01-15 16:56 ` [U-Boot] [PATCH 1/4] MIPS: mscc: ocelot: Add ethernet nodes for Ocelot Gregory CLEMENT
@ 2019-01-15 16:56 ` Gregory CLEMENT
2019-01-15 16:56 ` [U-Boot] [PATCH 3/4] MIPS: mscc: ocelot: add switch reset support Gregory CLEMENT
2019-01-15 16:56 ` [U-Boot] [PATCH 4/4] configs: mscc_ocelot: add network support Gregory CLEMENT
3 siblings, 0 replies; 6+ messages in thread
From: Gregory CLEMENT @ 2019-01-15 16:56 UTC (permalink / raw)
To: u-boot
This patch adds support for the Microsemi Ethernet switch present on
Ocelot SoCs.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
---
MAINTAINERS | 1 +
drivers/net/Kconfig | 7 +
drivers/net/Makefile | 1 +
drivers/net/ocelot_switch.c | 837 ++++++++++++++++++++++++++++++++++++
4 files changed, 846 insertions(+)
create mode 100644 drivers/net/ocelot_switch.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 3fa5d3e96f..af44e19eae 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -529,6 +529,7 @@ F: drivers/gpio/mscc_sgpio.c
F: drivers/spi/mscc_bb_spi.c
F: include/configs/vcoreiii.h
F: drivers/pinctrl/mscc/
+F: drivers/net/ocelot_switch.c
MIPS JZ4780
M: Ezequiel Garcia <ezequiel@collabora.com>
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 7044c6adf3..10ac15cc6c 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -432,6 +432,13 @@ config SNI_AVE
This driver implements support for the Socionext AVE Ethernet
controller, as found on the Socionext UniPhier family.
+config MSCC_OCELOT_SWITCH
+ bool "Ocelot switch driver"
+ depends on DM_ETH && ARCH_MSCC
+ select PHYLIB
+ help
+ This driver supports the Ocelot network switch device.
+
config ETHER_ON_FEC1
bool "FEC1"
depends on MPC8XX_FEC
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 0dbfa03306..bd108c21d1 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -74,3 +74,4 @@ obj-$(CONFIG_DWC_ETH_QOS) += dwc_eth_qos.o
obj-$(CONFIG_FSL_PFE) += pfe_eth/
obj-$(CONFIG_SNI_AVE) += sni_ave.o
obj-y += ti/
+obj-$(CONFIG_MSCC_OCELOT_SWITCH) += ocelot_switch.o
diff --git a/drivers/net/ocelot_switch.c b/drivers/net/ocelot_switch.c
new file mode 100644
index 0000000000..7ad0538b76
--- /dev/null
+++ b/drivers/net/ocelot_switch.c
@@ -0,0 +1,837 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2018 Microsemi Corporation
+ */
+
+#include <common.h>
+#include <config.h>
+#include <dm.h>
+#include <dm/of_access.h>
+#include <dm/of_addr.h>
+#include <fdt_support.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <miiphy.h>
+#include <net.h>
+
+#define MIIM_STATUS 0x0
+#define MIIM_STAT_BUSY BIT(3)
+#define MIIM_CMD 0x8
+#define MIIM_CMD_SCAN BIT(0)
+#define MIIM_CMD_OPR_WRITE BIT(1)
+#define MIIM_CMD_OPR_READ BIT(2)
+#define MIIM_CMD_SINGLE_SCAN BIT(3)
+#define MIIM_CMD_WRDATA(x) ((x) << 4)
+#define MIIM_CMD_REGAD(x) ((x) << 20)
+#define MIIM_CMD_PHYAD(x) ((x) << 25)
+#define MIIM_CMD_VLD BIT(31)
+#define MIIM_DATA 0xC
+#define MIIM_DATA_ERROR (0x2 << 16)
+
+#define PHY_CFG 0x0
+#define PHY_CFG_ENA 0xF
+#define PHY_CFG_COMMON_RST BIT(4)
+#define PHY_CFG_RST (0xF << 5)
+#define PHY_STAT 0x4
+#define PHY_STAT_SUPERVISOR_COMPLETE BIT(0)
+
+#define ANA_PORT_VLAN_CFG(x) (0x7000 + 0x100 * (x))
+#define ANA_PORT_VLAN_CFG_AWARE_ENA BIT(20)
+#define ANA_PORT_VLAN_CFG_POP_CNT(x) ((x) << 18)
+#define ANA_PORT_PORT_CFG(x) (0x7070 + 0x100 * (x))
+#define ANA_PORT_PORT_CFG_RECV_ENA BIT(6)
+#define ANA_TABLES_MACHDATA 0x8b34
+#define ANA_TABLES_MACLDATA 0x8b38
+#define ANA_TABLES_MACACCESS 0x8b3c
+#define ANA_TABLES_MACACCESS_VALID BIT(11)
+#define ANA_TABLES_MACACCESS_ENTRYTYPE(x) ((x) << 9)
+#define ANA_TABLES_MACACCESS_DEST_IDX(x) ((x) << 3)
+#define ANA_TABLES_MACACCESS_MAC_TABLE_CMD(x) (x)
+#define ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M GENMASK(2, 0)
+#define MACACCESS_CMD_IDLE 0
+#define MACACCESS_CMD_LEARN 1
+#define MACACCESS_CMD_GET_NEXT 4
+#define ANA_PGID(x) (0x8c00 + 4 * (x))
+
+#define SYS_FRM_AGING 0x574
+#define SYS_FRM_AGING_ENA BIT(20)
+
+#define SYS_SYSTEM_RST_CFG 0x508
+#define SYS_SYSTEM_RST_MEM_INIT BIT(0)
+#define SYS_SYSTEM_RST_MEM_ENA BIT(1)
+#define SYS_SYSTEM_RST_CORE_ENA BIT(2)
+#define SYS_PORT_MODE(x) (0x514 + 0x4 * (x))
+#define SYS_PORT_MODE_INCL_INJ_HDR(x) ((x) << 3)
+#define SYS_PORT_MODE_INCL_INJ_HDR_M GENMASK(4, 3)
+#define SYS_PORT_MODE_INCL_XTR_HDR(x) ((x) << 1)
+#define SYS_PORT_MODE_INCL_XTR_HDR_M GENMASK(2, 1)
+#define SYS_PAUSE_CFG(x) (0x608 + 0x4 * (x))
+#define SYS_PAUSE_CFG_PAUSE_ENA BIT(0)
+
+#define QSYS_SWITCH_PORT_MODE(x) (0x11234 + 0x4 * (x))
+#define QSYS_SWITCH_PORT_MODE_PORT_ENA BIT(14)
+#define QSYS_QMAP 0x112d8
+#define QSYS_EGR_NO_SHARING 0x1129c
+
+/* Port registers */
+#define DEV_CLOCK_CFG 0x0
+#define DEV_CLOCK_CFG_LINK_SPEED_1000 1
+#define DEV_MAC_ENA_CFG 0x1c
+#define DEV_MAC_ENA_CFG_RX_ENA BIT(4)
+#define DEV_MAC_ENA_CFG_TX_ENA BIT(0)
+
+#define DEV_MAC_IFG_CFG 0x30
+#define DEV_MAC_IFG_CFG_TX_IFG(x) ((x) << 8)
+#define DEV_MAC_IFG_CFG_RX_IFG2(x) ((x) << 4)
+#define DEV_MAC_IFG_CFG_RX_IFG1(x) (x)
+
+#define PCS1G_CFG 0x48
+#define PCS1G_MODE_CFG_SGMII_MODE_ENA BIT(0)
+#define PCS1G_MODE_CFG 0x4c
+#define PCS1G_MODE_CFG_UNIDIR_MODE_ENA BIT(4)
+#define PCS1G_MODE_CFG_SGMII_MODE_ENA BIT(0)
+#define PCS1G_SD_CFG 0x50
+#define PCS1G_ANEG_CFG 0x54
+#define PCS1G_ANEG_CFG_ADV_ABILITY(x) ((x) << 16)
+
+#define QS_XTR_GRP_CFG(x) (4 * (x))
+#define QS_XTR_GRP_CFG_MODE(x) ((x) << 2)
+#define QS_XTR_GRP_CFG_STATUS_WORD_POS BIT(1)
+#define QS_XTR_GRP_CFG_BYTE_SWAP BIT(0)
+#define QS_XTR_RD(x) (0x8 + 4 * (x))
+#define QS_XTR_FLUSH 0x18
+#define QS_XTR_FLUSH_FLUSH GENMASK(1, 0)
+#define QS_XTR_DATA_PRESENT 0x1c
+#define QS_INJ_GRP_CFG(x) (0x24 + (x) * 4)
+#define QS_INJ_GRP_CFG_MODE(x) ((x) << 2)
+#define QS_INJ_GRP_CFG_BYTE_SWAP BIT(0)
+#define QS_INJ_WR(x) (0x2c + 4 * (x))
+#define QS_INJ_CTRL(x) (0x34 + 4 * (x))
+#define QS_INJ_CTRL_GAP_SIZE(x) ((x) << 21)
+#define QS_INJ_CTRL_EOF BIT(19)
+#define QS_INJ_CTRL_SOF BIT(18)
+#define QS_INJ_CTRL_VLD_BYTES(x) ((x) << 16)
+
+#define XTR_EOF_0 ntohl(0x80000000u)
+#define XTR_EOF_1 ntohl(0x80000001u)
+#define XTR_EOF_2 ntohl(0x80000002u)
+#define XTR_EOF_3 ntohl(0x80000003u)
+#define XTR_PRUNED ntohl(0x80000004u)
+#define XTR_ABORT ntohl(0x80000005u)
+#define XTR_ESCAPE ntohl(0x80000006u)
+#define XTR_NOT_READY ntohl(0x80000007u)
+
+#define IFH_INJ_BYPASS BIT(31)
+#define IFH_TAG_TYPE_C 0
+#define XTR_VALID_BYTES(x) (4 - ((x) & 3))
+#define MAC_VID 1
+#define CPU_PORT 11
+#define INTERNAL_PORT_MSK 0xF
+#define IFH_LEN 4
+#define OCELOT_BUF_CELL_SZ 60
+#define ETH_ALEN 6
+#define PGID_BROADCAST 13
+#define PGID_UNICAST 14
+#define PGID_SRC 80
+
+enum ocelot_target {
+ ANA,
+ QS,
+ QSYS,
+ REW,
+ SYS,
+ HSIO,
+ PORT0,
+ PORT1,
+ PORT2,
+ PORT3,
+ TARGET_MAX,
+};
+
+#define MAX_PORT (PORT3 - PORT0)
+
+/* MAC table entry types.
+ * ENTRYTYPE_NORMAL is subject to aging.
+ * ENTRYTYPE_LOCKED is not subject to aging.
+ * ENTRYTYPE_MACv4 is not subject to aging. For IPv4 multicast.
+ * ENTRYTYPE_MACv6 is not subject to aging. For IPv6 multicast.
+ */
+enum macaccess_entry_type {
+ ENTRYTYPE_NORMAL = 0,
+ ENTRYTYPE_LOCKED,
+ ENTRYTYPE_MACv4,
+ ENTRYTYPE_MACv6,
+};
+
+enum ocelot_mdio_target {
+ MIIM,
+ PHY,
+ TARGET_MDIO_MAX,
+};
+
+enum ocelot_phy_id {
+ INTERNAL,
+ EXTERNAL,
+ NUM_PHY,
+};
+
+struct ocelot_private {
+ void __iomem *regs[TARGET_MAX];
+
+ struct mii_dev *bus[NUM_PHY];
+ struct phy_device *phydev;
+ int phy_mode;
+ int max_speed;
+
+ int rx_pos;
+ int rx_siz;
+ int rx_off;
+ int tx_num;
+
+ u8 tx_adj_packetbuf[PKTSIZE_ALIGN + PKTALIGN];
+ void *tx_adj_buf;
+
+ struct ocelot_soc_data *data;
+};
+
+struct ocelot_soc_data {
+ phys_addr_t base[TARGET_MAX];
+ unsigned long size[TARGET_MAX];
+
+ phys_addr_t phy_base[NUM_PHY][TARGET_MAX];
+ unsigned long phy_size[NUM_PHY][TARGET_MAX];
+};
+
+struct mscc_miim_dev {
+ void __iomem *regs;
+ void __iomem *phy_regs;
+};
+
+struct mscc_miim_dev miim[NUM_PHY];
+
+static int mscc_miim_wait_ready(struct mscc_miim_dev *miim)
+{
+ unsigned long deadline;
+ u32 val;
+
+ deadline = timer_get_us() + 250000;
+
+ do {
+ val = readl(miim->regs + MIIM_STATUS);
+ } while (timer_get_us() <= deadline && (val & MIIM_STAT_BUSY));
+
+ if (val & MIIM_STAT_BUSY)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int mscc_miim_reset(struct mii_dev *bus)
+{
+ struct mscc_miim_dev *miim = (struct mscc_miim_dev *)bus->priv;
+
+ if (miim->phy_regs) {
+ writel(0, miim->phy_regs + PHY_CFG);
+ writel(PHY_CFG_RST | PHY_CFG_COMMON_RST
+ | PHY_CFG_ENA, miim->phy_regs + PHY_CFG);
+ mdelay(500);
+ }
+
+ return 0;
+}
+
+static int mscc_miim_read(struct mii_dev *bus, int addr, int devad, int reg)
+{
+ struct mscc_miim_dev *miim = (struct mscc_miim_dev *)bus->priv;
+ u32 val;
+ int ret;
+
+ ret = mscc_miim_wait_ready(miim);
+ if (ret)
+ goto out;
+
+ writel(MIIM_CMD_VLD | MIIM_CMD_PHYAD(addr) |
+ MIIM_CMD_REGAD(reg) | MIIM_CMD_OPR_READ,
+ miim->regs + MIIM_CMD);
+
+ ret = mscc_miim_wait_ready(miim);
+ if (ret)
+ goto out;
+
+ val = readl(miim->regs + MIIM_DATA);
+ if (val & MIIM_DATA_ERROR) {
+ ret = -EIO;
+ goto out;
+ }
+
+ ret = val & 0xFFFF;
+ out:
+ return ret;
+}
+
+static int mscc_miim_write(struct mii_dev *bus, int addr, int devad, int reg,
+ u16 val)
+{
+ struct mscc_miim_dev *miim = (struct mscc_miim_dev *)bus->priv;
+ int ret;
+
+ ret = mscc_miim_wait_ready(miim);
+ if (ret < 0)
+ goto out;
+
+ writel(MIIM_CMD_VLD | MIIM_CMD_PHYAD(addr) |
+ MIIM_CMD_REGAD(reg) | MIIM_CMD_WRDATA(val) |
+ MIIM_CMD_OPR_WRITE, miim->regs + MIIM_CMD);
+ out:
+ return ret;
+}
+
+static struct mii_dev *ocelot_mdiobus_init(struct ocelot_private *priv,
+ int mdiobus_id)
+{
+ struct ocelot_soc_data *pdata = priv->data;
+ struct mii_dev *bus;
+ int plat_id;
+
+ bus = mdio_alloc();
+
+ if (!bus)
+ return NULL;
+
+ if (mdiobus_id == INTERNAL) {
+ strcpy(bus->name, "miim-internal");
+ for (plat_id = 0; plat_id < NUM_PHY; plat_id++)
+ /* only internal mdio has a PHY regsier */
+ if (pdata->phy_base[plat_id][PHY])
+ break;
+ miim[mdiobus_id].phy_regs =
+ ioremap(pdata->phy_base[plat_id][PHY],
+ pdata->phy_size[plat_id][PHY]);
+ bus->reset = mscc_miim_reset;
+ } else {
+ for (plat_id = 0; plat_id < NUM_PHY; plat_id++)
+ /* external mdio has not a PHY regsier */
+ if (!pdata->phy_base[plat_id][PHY])
+ break;
+ strcpy(bus->name, "miim-external");
+ }
+
+ miim[mdiobus_id].regs =
+ ioremap(pdata->phy_base[plat_id][MIIM],
+ pdata->phy_size[plat_id][MIIM]);
+ bus->priv = &miim[mdiobus_id];
+ bus->read = mscc_miim_read;
+ bus->write = mscc_miim_write;
+
+ if (mdio_register(bus))
+ return NULL;
+ else
+ return bus;
+}
+
+__weak void mscc_switch_reset(void)
+{
+}
+
+static void ocelot_stop(struct udevice *dev)
+{
+ struct ocelot_private *priv = dev_get_priv(dev);
+ int i;
+
+ mscc_switch_reset();
+ for (i = 0; i < NUM_PHY; i++)
+ if (priv->bus[i])
+ mscc_miim_reset(priv->bus[i]);
+}
+
+static void ocelot_cpu_capture_setup(struct ocelot_private *priv)
+{
+ int i;
+
+ /* map the 8 CPU extraction queues to CPU port 11 */
+ writel(0, priv->regs[QSYS] + QSYS_QMAP);
+
+ for (i = 0; i <= 1; i++) {
+ /*
+ * Do byte-swap and expect status after last data word
+ * Extraction: Mode: manual extraction) | Byte_swap
+ */
+ writel(QS_XTR_GRP_CFG_MODE(1) | QS_XTR_GRP_CFG_BYTE_SWAP,
+ priv->regs[QS] + QS_XTR_GRP_CFG(i));
+ /*
+ * Injection: Mode: manual extraction | Byte_swap
+ */
+ writel(QS_INJ_GRP_CFG_MODE(1) | QS_INJ_GRP_CFG_BYTE_SWAP,
+ priv->regs[QS] + QS_INJ_GRP_CFG(i));
+ }
+
+ for (i = 0; i <= 1; i++)
+ /* Enable IFH insertion/parsing on CPU ports */
+ writel(SYS_PORT_MODE_INCL_INJ_HDR(1) |
+ SYS_PORT_MODE_INCL_XTR_HDR(1),
+ priv->regs[SYS] + SYS_PORT_MODE(CPU_PORT + i));
+ /*
+ * Setup the CPU port as VLAN aware to support switching frames
+ * based on tags
+ */
+ writel(ANA_PORT_VLAN_CFG_AWARE_ENA | ANA_PORT_VLAN_CFG_POP_CNT(1) |
+ MAC_VID, priv->regs[ANA] + ANA_PORT_VLAN_CFG(CPU_PORT));
+
+ /* Disable learning (only RECV_ENA must be set) */
+ writel(ANA_PORT_PORT_CFG_RECV_ENA,
+ priv->regs[ANA] + ANA_PORT_PORT_CFG(CPU_PORT));
+
+ /* Enable switching to/from cpu port */
+ setbits_le32(priv->regs[QSYS] + QSYS_SWITCH_PORT_MODE(CPU_PORT),
+ QSYS_SWITCH_PORT_MODE_PORT_ENA);
+
+ /* No pause on CPU port - not needed (off by default) */
+ clrbits_le32(priv->regs[SYS] + SYS_PAUSE_CFG(CPU_PORT),
+ SYS_PAUSE_CFG_PAUSE_ENA);
+
+ setbits_le32(priv->regs[QSYS] + QSYS_EGR_NO_SHARING, BIT(CPU_PORT));
+}
+
+static void ocelot_port_init(struct ocelot_private *priv, int port)
+{
+ void __iomem *regs = priv->regs[port];
+
+ /* Enable PCS */
+ writel(PCS1G_MODE_CFG_SGMII_MODE_ENA, regs + PCS1G_CFG);
+
+ /* Disable Signal Detect */
+ writel(0, regs + PCS1G_SD_CFG);
+
+ /* Enable MAC RX and TX */
+ writel(DEV_MAC_ENA_CFG_RX_ENA | DEV_MAC_ENA_CFG_TX_ENA,
+ regs + DEV_MAC_ENA_CFG);
+
+ /* Clear sgmii_mode_ena */
+ writel(0, regs + PCS1G_MODE_CFG);
+
+ /*
+ * Clear sw_resolve_ena(bit 0) and set adv_ability to
+ * something meaningful just in case
+ */
+ writel(PCS1G_ANEG_CFG_ADV_ABILITY(0x20), regs + PCS1G_ANEG_CFG);
+
+ /* Set MAC IFG Gaps */
+ writel(DEV_MAC_IFG_CFG_TX_IFG(5) | DEV_MAC_IFG_CFG_RX_IFG1(5) |
+ DEV_MAC_IFG_CFG_RX_IFG2(1), regs + DEV_MAC_IFG_CFG);
+
+ /* Set link speed and release all resets */
+ writel(DEV_CLOCK_CFG_LINK_SPEED_1000, regs + DEV_CLOCK_CFG);
+
+ /* Make VLAN aware for CPU traffic */
+ writel(ANA_PORT_VLAN_CFG_AWARE_ENA | ANA_PORT_VLAN_CFG_POP_CNT(1) |
+ MAC_VID, priv->regs[ANA] + ANA_PORT_VLAN_CFG(port - PORT0));
+
+ /* Enable the port in the core */
+ setbits_le32(priv->regs[QSYS] + QSYS_SWITCH_PORT_MODE(port - PORT0),
+ QSYS_SWITCH_PORT_MODE_PORT_ENA);
+}
+
+static int ocelot_switch_init(struct ocelot_private *priv)
+{
+ unsigned long deadline;
+ u32 val = 0;
+
+ /* Reset switch & memories */
+ writel(SYS_SYSTEM_RST_MEM_ENA | SYS_SYSTEM_RST_MEM_INIT,
+ priv->regs[SYS] + SYS_SYSTEM_RST_CFG);
+
+ /* Wait to complete */
+ deadline = timer_get_us() + 2000000;
+ do {
+ if (time_after(timer_get_us(), deadline)) {
+ printf("Timeout in memory reset, reg = 0x%08x\n", val);
+ return -EIO;
+ }
+ val = readl(priv->regs[SYS] + SYS_SYSTEM_RST_CFG);
+
+ } while (val & SYS_SYSTEM_RST_MEM_INIT);
+
+ debug("SwC init done - reg = 0x%08x\n", val);
+
+ /* Enable switch core */
+ setbits_le32(priv->regs[SYS] + SYS_SYSTEM_RST_CFG,
+ SYS_SYSTEM_RST_CORE_ENA);
+
+ return 0;
+}
+
+static void ocelot_switch_flush(struct ocelot_private *priv)
+{
+ /* All Queues flush */
+ setbits_le32(priv->regs[QS] + QS_XTR_FLUSH, QS_XTR_FLUSH_FLUSH);
+ /* Allow to drain */
+ mdelay(1);
+ /* All Queues normal */
+ clrbits_le32(priv->regs[QS] + QS_XTR_FLUSH, QS_XTR_FLUSH_FLUSH);
+}
+
+static int ocelot_initialize(struct ocelot_private *priv)
+{
+ int ret, i;
+
+ /* Initialize switch memories, enable core */
+ ret = ocelot_switch_init(priv);
+ if (ret)
+ return ret;
+ /*
+ * Disable port-to-port by switching
+ * Put fron ports in "port isolation modes" - i.e. they cant send
+ * to other ports - via the PGID sorce masks.
+ */
+ for (i = 0; i <= MAX_PORT; i++)
+ writel(0, priv->regs[ANA] + ANA_PGID(PGID_SRC + i));
+
+ /* Flush queues */
+ ocelot_switch_flush(priv);
+
+ /* Setup frame ageing - "2 sec" - The unit is 6.5us on Ocelot */
+ writel(SYS_FRM_AGING_ENA | (20000000 / 65),
+ priv->regs[SYS] + SYS_FRM_AGING);
+
+ for (i = PORT0; i <= PORT3; i++)
+ ocelot_port_init(priv, i);
+
+ ocelot_cpu_capture_setup(priv);
+
+ debug("Ports enabled\n");
+
+ return 0;
+}
+
+static inline int ocelot_vlant_wait_for_completion(struct ocelot_private *priv)
+{
+ unsigned int val, timeout = 10;
+
+ /* Wait for the issued mac table command to be completed, or timeout.
+ * When the command read from ANA_TABLES_MACACCESS is
+ * MACACCESS_CMD_IDLE, the issued command completed successfully.
+ */
+ do {
+ val = readl(priv->regs[ANA] + ANA_TABLES_MACACCESS);
+ val &= ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M;
+ } while (val != MACACCESS_CMD_IDLE && timeout--);
+
+ if (!timeout)
+ return -ETIMEDOUT;
+
+ return 0;
+}
+
+static int ocelot_mac_table_add(struct ocelot_private *priv,
+ const unsigned char mac[ETH_ALEN], int pgid)
+{
+ u32 macl = 0, mach = 0;
+ int ret;
+
+ /* Set the MAC address to handle and the vlan associated in a format
+ * understood by the hardware.
+ */
+ mach |= MAC_VID << 16;
+ mach |= ((u32)mac[0]) << 8;
+ mach |= ((u32)mac[1]) << 0;
+ macl |= ((u32)mac[2]) << 24;
+ macl |= ((u32)mac[3]) << 16;
+ macl |= ((u32)mac[4]) << 8;
+ macl |= ((u32)mac[5]) << 0;
+
+ writel(macl, priv->regs[ANA] + ANA_TABLES_MACLDATA);
+ writel(mach, priv->regs[ANA] + ANA_TABLES_MACHDATA);
+
+ writel(ANA_TABLES_MACACCESS_VALID |
+ ANA_TABLES_MACACCESS_DEST_IDX(pgid) |
+ ANA_TABLES_MACACCESS_ENTRYTYPE(ENTRYTYPE_LOCKED) |
+ ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_LEARN),
+ priv->regs[ANA] + ANA_TABLES_MACACCESS);
+
+ ret = ocelot_vlant_wait_for_completion(priv);
+
+ return ret;
+}
+
+static int ocelot_write_hwaddr(struct udevice *dev)
+{
+ struct ocelot_private *priv = dev_get_priv(dev);
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+
+ ocelot_mac_table_add(priv, pdata->enetaddr, PGID_UNICAST);
+
+ writel(BIT(CPU_PORT), priv->regs[ANA] + ANA_PGID(PGID_UNICAST));
+
+ return 0;
+}
+
+static int ocelot_start(struct udevice *dev)
+{
+ struct ocelot_private *priv = dev_get_priv(dev);
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ const unsigned char mac[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff };
+ int ret;
+
+ ret = ocelot_initialize(priv);
+ if (ret)
+ return ret;
+
+ /* Set MAC address tables entries for CPU redirection */
+ ocelot_mac_table_add(priv, mac, PGID_BROADCAST);
+
+ writel(BIT(CPU_PORT) | INTERNAL_PORT_MSK,
+ priv->regs[ANA] + ANA_PGID(PGID_BROADCAST));
+
+ /* It should be setup latter in ocelot_write_hwaddr */
+ ocelot_mac_table_add(priv, pdata->enetaddr, PGID_UNICAST);
+
+ writel(BIT(CPU_PORT), priv->regs[ANA] + ANA_PGID(PGID_UNICAST));
+
+ return 0;
+}
+
+static int ocelot_send(struct udevice *dev, void *packet, int length)
+{
+ struct ocelot_private *priv = dev_get_priv(dev);
+ u32 ifh[IFH_LEN];
+ int port = BIT(0); /* use port 0 */
+ u8 grp = 0; /* Send everything on CPU group 0 */
+ int i, count = (length + 3) / 4, last = length % 4;
+ u32 *buf = packet;
+
+ writel(QS_INJ_CTRL_GAP_SIZE(1) | QS_INJ_CTRL_SOF,
+ priv->regs[QS] + QS_INJ_CTRL(grp));
+
+ /*
+ * Generate the IFH for frame injection
+ *
+ * The IFH is a 128bit-value
+ * bit 127: bypass the analyzer processing
+ * bit 56-67: destination mask
+ * bit 28-29: pop_cnt: 3 disables all rewriting of the frame
+ * bit 20-27: cpu extraction queue mask
+ * bit 16: tag type 0: C-tag, 1: S-tag
+ * bit 0-11: VID
+ */
+ ifh[0] = IFH_INJ_BYPASS;
+ ifh[1] = (0xf00 & port) >> 8;
+ ifh[2] = (0xff & port) << 24;
+ ifh[3] = (IFH_TAG_TYPE_C << 16);
+
+ for (i = 0; i < IFH_LEN; i++)
+ writel(ifh[i], priv->regs[QS] + QS_INJ_WR(grp));
+
+ for (i = 0; i < count; i++)
+ writel(buf[i], priv->regs[QS] + QS_INJ_WR(grp));
+
+ /* Add padding */
+ while (i < (OCELOT_BUF_CELL_SZ / 4)) {
+ writel(0, priv->regs[QS] + QS_INJ_WR(grp));
+ i++;
+ }
+
+ /* Indicate EOF and valid bytes in last word */
+ writel(QS_INJ_CTRL_GAP_SIZE(1) |
+ QS_INJ_CTRL_VLD_BYTES(length < OCELOT_BUF_CELL_SZ ? 0 : last) |
+ QS_INJ_CTRL_EOF, priv->regs[QS] + QS_INJ_CTRL(grp));
+
+ /* Add dummy CRC */
+ writel(0, priv->regs[QS] + QS_INJ_WR(grp));
+
+ return 0;
+}
+
+static int ocelot_recv(struct udevice *dev, int flags, uchar **packetp)
+{
+ struct ocelot_private *priv = dev_get_priv(dev);
+ u8 grp = 0; /* Send everything on CPU group 0 */
+ u32 *rxbuf = (u32 *)net_rx_packets[0];
+ int i, byte_cnt = 0;
+ bool eof_flag = false, pruned_flag = false, abort_flag = false;
+
+ if (!(readl(priv->regs[QS] + QS_XTR_DATA_PRESENT) & BIT(grp)))
+ return -EAGAIN;
+
+ /* skip IFH */
+ for (i = 0; i < IFH_LEN; i++)
+ readl(priv->regs[QS] + QS_XTR_RD(grp));
+
+ while (!eof_flag) {
+ u32 val = readl(priv->regs[QS] + QS_XTR_RD(grp));
+
+ switch (val) {
+ case XTR_NOT_READY:
+ debug("%d NOT_READY...?\n", byte_cnt);
+ break;
+ case XTR_ABORT:
+ /* really nedeed?? not done in linux */
+ *rxbuf = readl(priv->regs[QS] + QS_XTR_RD(grp));
+ abort_flag = true;
+ eof_flag = true;
+ debug("XTR_ABORT\n");
+ break;
+ case XTR_EOF_0:
+ case XTR_EOF_1:
+ case XTR_EOF_2:
+ case XTR_EOF_3:
+ byte_cnt += XTR_VALID_BYTES(val);
+ *rxbuf = readl(priv->regs[QS] + QS_XTR_RD(grp));
+ eof_flag = true;
+ debug("EOF\n");
+ break;
+ case XTR_PRUNED:
+ /* But get the last 4 bytes as well */
+ eof_flag = true;
+ pruned_flag = true;
+ debug("PRUNED\n");
+ /* fallthrough */
+ case XTR_ESCAPE:
+ *rxbuf = readl(priv->regs[QS] + QS_XTR_RD(grp));
+ byte_cnt += 4;
+ rxbuf++;
+ debug("ESCAPED\n");
+ break;
+ default:
+ *rxbuf = val;
+ byte_cnt += 4;
+ rxbuf++;
+ }
+ }
+
+ if (abort_flag || pruned_flag || !eof_flag) {
+ debug("Discarded frame: abort:%d pruned:%d eof:%d\n",
+ abort_flag, pruned_flag, eof_flag);
+ return -EAGAIN;
+ }
+
+ *packetp = net_rx_packets[0];
+
+ return byte_cnt;
+}
+
+static int ocelot_ofdata_to_platdata(struct udevice *dev)
+{
+ struct ocelot_private *priv = dev_get_priv(dev);
+ struct ofnode_phandle_args phandle;
+ struct ocelot_soc_data *plat;
+ ofnode eth_node, node, mdio_node;
+ struct resource res;
+ fdt32_t faddr;
+ int ret, i;
+
+ struct {
+ enum ocelot_target id;
+ char *name;
+ } reg[] = {
+ { SYS, "sys" },
+ { REW, "rew" },
+ { QSYS, "qsys" },
+ { ANA, "ana" },
+ { QS, "qs" },
+ { HSIO, "hsio" },
+ { PORT0, "port0" },
+ { PORT1, "port1" },
+ { PORT2, "port2" },
+ { PORT3, "port3" },
+ };
+
+ priv->data = (struct ocelot_soc_data *)dev_get_platdata(dev);
+ if (!priv->data)
+ return -EINVAL;
+
+ plat = priv->data;
+ for (i = 0; i < ARRAY_SIZE(reg); i++) {
+ ret = dev_read_resource_byname(dev, reg[i].name, &res);
+ if (ret) {
+ debug
+ ("Error %d: can't get regs base addresses for %s\n",
+ ret, reg[i].name);
+ return -ENOMEM;
+ }
+
+ faddr = cpu_to_fdt32(res.start);
+ plat->base[reg[i].id] = dev_translate_address(dev, &faddr);
+ if (plat->base[reg[i].id] == OF_BAD_ADDR)
+ return -ENOMEM;
+ plat->size[reg[i].id] = res.end - res.start;
+ }
+
+ /* gathered only the first mdio bus */
+ eth_node = dev_read_first_subnode(dev);
+ node = ofnode_first_subnode(eth_node);
+ ofnode_parse_phandle_with_args(node, "phy-handle", NULL, 0, 0,
+ &phandle);
+ mdio_node = ofnode_get_parent(phandle.node);
+
+ for (i = 0; i < TARGET_MDIO_MAX; i++) {
+ if (ofnode_read_resource(mdio_node, i, &res))
+ return -ENOMEM;
+ faddr = cpu_to_fdt32(res.start);
+ plat->phy_base[INTERNAL][i] =
+ ofnode_translate_address(mdio_node, &faddr);
+ plat->phy_size[INTERNAL][i] = res.end - res.start;
+ }
+
+ return 0;
+}
+
+static int ocelot_probe(struct udevice *dev)
+{
+ struct ocelot_private *priv = dev_get_priv(dev);
+ int i;
+
+ if (!priv)
+ return -EINVAL;
+
+ for (i = 0; i < TARGET_MAX; i++)
+ priv->regs[i] = ioremap(priv->data->base[i],
+ priv->data->size[i]);
+
+ priv->bus[INTERNAL] = ocelot_mdiobus_init(priv, INTERNAL);
+
+ for (i = 0; i < 4; i++) {
+ phy_connect(priv->bus[INTERNAL], i, dev,
+ PHY_INTERFACE_MODE_NONE);
+ }
+
+ return 0;
+}
+
+static int ocelot_remove(struct udevice *dev)
+{
+ struct ocelot_private *priv = dev_get_priv(dev);
+ int i;
+
+ for (i = 0; i < NUM_PHY; i++) {
+ mdio_unregister(priv->bus[i]);
+ mdio_free(priv->bus[i]);
+ }
+
+ return 0;
+}
+
+static const struct eth_ops ocelot_ops = {
+ .start = ocelot_start,
+ .stop = ocelot_stop,
+ .send = ocelot_send,
+ .recv = ocelot_recv,
+ .write_hwaddr = ocelot_write_hwaddr,
+};
+
+static const struct udevice_id mscc_ocelot_ids[] = {
+ {.compatible = "mscc,vsc7514-switch"},
+ { /* Sentinel */ }
+};
+
+U_BOOT_DRIVER(ocelot) = {
+ .name = "ocelot-switch",
+ .id = UCLASS_ETH,
+ .of_match = mscc_ocelot_ids,
+ .probe = ocelot_probe,
+ .remove = ocelot_remove,
+ .ofdata_to_platdata = ocelot_ofdata_to_platdata,
+ .ops = &ocelot_ops,
+ .priv_auto_alloc_size = sizeof(struct ocelot_private),
+ .platdata_auto_alloc_size = sizeof(struct ocelot_soc_data),
+};
--
2.20.1
^ permalink raw reply related [flat|nested] 6+ messages in thread