Add network driver for Microsemi Ethernet switch. It is present on Jaguar2 SoCs.
Signed-off-by: Horatiu Vultur horatiu.vultur@microchip.com --- drivers/net/mscc_eswitch/Kconfig | 7 + drivers/net/mscc_eswitch/Makefile | 1 + drivers/net/mscc_eswitch/jr2_switch.c | 735 ++++++++++++++++++++++++++++++++++ include/configs/vcoreiii.h | 2 +- 4 files changed, 744 insertions(+), 1 deletion(-) create mode 100644 drivers/net/mscc_eswitch/jr2_switch.c
diff --git a/drivers/net/mscc_eswitch/Kconfig b/drivers/net/mscc_eswitch/Kconfig index 88e5a97..3f9d14b 100644 --- a/drivers/net/mscc_eswitch/Kconfig +++ b/drivers/net/mscc_eswitch/Kconfig @@ -15,3 +15,10 @@ config MSCC_LUTON_SWITCH select PHYLIB help This driver supports the Luton network switch device. + +config MSCC_JR2_SWITCH + bool "Jaguar2 switch driver" + depends on DM_ETH && ARCH_MSCC + select PHYLIB + help + This driver supports the Jaguar2 network switch device. diff --git a/drivers/net/mscc_eswitch/Makefile b/drivers/net/mscc_eswitch/Makefile index 751a839..0a1b863 100644 --- a/drivers/net/mscc_eswitch/Makefile +++ b/drivers/net/mscc_eswitch/Makefile @@ -1,3 +1,4 @@
obj-$(CONFIG_MSCC_OCELOT_SWITCH) += ocelot_switch.o mscc_miim.o mscc_xfer.o mscc_mac_table.o obj-$(CONFIG_MSCC_LUTON_SWITCH) += luton_switch.o mscc_miim.o mscc_xfer.o mscc_mac_table.o +obj-$(CONFIG_MSCC_JR2_SWITCH) += jr2_switch.o mscc_xfer.o diff --git a/drivers/net/mscc_eswitch/jr2_switch.c b/drivers/net/mscc_eswitch/jr2_switch.c new file mode 100644 index 0000000..27b72ee --- /dev/null +++ b/drivers/net/mscc_eswitch/jr2_switch.c @@ -0,0 +1,735 @@ +// 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> +#include <wait_bit.h> + +#include "mscc_xfer.h" + +#define GCB_MIIM_MII_STATUS 0x0 +#define GCB_MIIM_STAT_BUSY BIT(3) +#define GCB_MIIM_MII_CMD 0x8 +#define GCB_MIIM_MII_CMD_SCAN BIT(0) +#define GCB_MIIM_MII_CMD_OPR_WRITE BIT(1) +#define GCB_MIIM_MII_CMD_OPR_READ BIT(2) +#define GCB_MIIM_MII_CMD_SINGLE_SCAN BIT(3) +#define GCB_MIIM_MII_CMD_WRDATA(x) ((x) << 4) +#define GCB_MIIM_MII_CMD_REGAD(x) ((x) << 20) +#define GCB_MIIM_MII_CMD_PHYAD(x) ((x) << 25) +#define GCB_MIIM_MII_CMD_VLD BIT(31) +#define GCB_MIIM_DATA 0xC +#define GCB_MIIM_DATA_ERROR (0x3 << 16) + +#define ANA_AC_RAM_CTRL_RAM_INIT 0x94358 +#define ANA_AC_STAT_GLOBAL_CFG_PORT_RESET 0x94370 + +#define ANA_CL_PORT_VLAN_CFG(x) (0x24018 + 0xc8 * (x)) +#define ANA_CL_PORT_VLAN_CFG_AWARE_ENA BIT(19) +#define ANA_CL_PORT_VLAN_CFG_POP_CNT(x) ((x) << 17) + +#define ANA_L2_COMMON_FWD_CFG 0x8a2a8 +#define ANA_L2_COMMON_FWD_CFG_CPU_DMAC_COPY_ENA BIT(6) + +#define ASM_CFG_STAT_CFG 0x3508 +#define ASM_CFG_PORT(x) (0x36c4 + 0x4 * (x)) +#define ASM_CFG_PORT_NO_PREAMBLE_ENA BIT(8) +#define ASM_CFG_PORT_INJ_FORMAT_CFG(x) ((x) << 1) +#define ASM_RAM_CTRL_RAM_INIT 0x39b8 + +#define DEV_DEV_CFG_DEV_RST_CTRL 0x0 +#define DEV_DEV_CFG_DEV_RST_CTRL_SPEED_SEL(x) ((x) << 20) +#define DEV_MAC_CFG_MAC_ENA 0x1c +#define DEV_MAC_CFG_MAC_ENA_RX_ENA BIT(4) +#define DEV_MAC_CFG_MAC_ENA_TX_ENA BIT(0) +#define DEV_MAC_CFG_MAC_IFG 0x34 +#define DEV_MAC_CFG_MAC_IFG_TX_IFG(x) ((x) << 8) +#define DEV_MAC_CFG_MAC_IFG_RX_IFG2(x) ((x) << 4) +#define DEV_MAC_CFG_MAC_IFG_RX_IFG1(x) (x) +#define DEV_PCS1G_CFG_PCS1G_CFG 0x40 +#define DEV_PCS1G_CFG_PCS1G_CFG_PCS_ENA BIT(0) +#define DEV_PCS1G_CFG_PCS1G_MODE 0x44 +#define DEV_PCS1G_CFG_PCS1G_SD 0x48 +#define DEV_PCS1G_CFG_PCS1G_ANEG 0x4c +#define DEV_PCS1G_CFG_PCS1G_ANEG_ADV_ABILITY(x) ((x) << 16) + +#define DSM_RAM_CTRL_RAM_INIT 0x8 + +#define HSIO_ANA_SERDES1G_DES_CFG 0xac +#define HSIO_ANA_SERDES1G_DES_CFG_BW_HYST(x) ((x) << 1) +#define HSIO_ANA_SERDES1G_DES_CFG_BW_ANA(x) ((x) << 5) +#define HSIO_ANA_SERDES1G_DES_CFG_MBTR_CTRL(x) ((x) << 8) +#define HSIO_ANA_SERDES1G_DES_CFG_PHS_CTRL(x) ((x) << 13) +#define HSIO_ANA_SERDES1G_IB_CFG 0xb0 +#define HSIO_ANA_SERDES1G_IB_CFG_RESISTOR_CTRL(x) (x) +#define HSIO_ANA_SERDES1G_IB_CFG_EQ_GAIN(x) ((x) << 6) +#define HSIO_ANA_SERDES1G_IB_CFG_ENA_OFFSET_COMP BIT(9) +#define HSIO_ANA_SERDES1G_IB_CFG_ENA_DETLEV BIT(11) +#define HSIO_ANA_SERDES1G_IB_CFG_ENA_CMV_TERM BIT(13) +#define HSIO_ANA_SERDES1G_IB_CFG_DET_LEV(x) ((x) << 19) +#define HSIO_ANA_SERDES1G_IB_CFG_ACJTAG_HYST(x) ((x) << 24) +#define HSIO_ANA_SERDES1G_OB_CFG 0xb4 +#define HSIO_ANA_SERDES1G_OB_CFG_RESISTOR_CTRL(x) (x) +#define HSIO_ANA_SERDES1G_OB_CFG_VCM_CTRL(x) ((x) << 4) +#define HSIO_ANA_SERDES1G_OB_CFG_CMM_BIAS_CTRL(x) ((x) << 10) +#define HSIO_ANA_SERDES1G_OB_CFG_AMP_CTRL(x) ((x) << 13) +#define HSIO_ANA_SERDES1G_OB_CFG_SLP(x) ((x) << 17) +#define HSIO_ANA_SERDES1G_SER_CFG 0xb8 +#define HSIO_ANA_SERDES1G_COMMON_CFG 0xbc +#define HSIO_ANA_SERDES1G_COMMON_CFG_IF_MODE BIT(0) +#define HSIO_ANA_SERDES1G_COMMON_CFG_ENA_LANE BIT(18) +#define HSIO_ANA_SERDES1G_COMMON_CFG_SYS_RST BIT(31) +#define HSIO_ANA_SERDES1G_PLL_CFG 0xc0 +#define HSIO_ANA_SERDES1G_PLL_CFG_FSM_ENA BIT(7) +#define HSIO_ANA_SERDES1G_PLL_CFG_FSM_CTRL_DATA(x) ((x) << 8) +#define HSIO_ANA_SERDES1G_PLL_CFG_ENA_RC_DIV2 BIT(21) +#define HSIO_DIG_SERDES1G_DFT_CFG0 0xc8 +#define HSIO_DIG_SERDES1G_TP_CFG 0xd4 +#define HSIO_DIG_SERDES1G_MISC_CFG 0xdc +#define HSIO_DIG_SERDES1G_MISC_CFG_LANE_RST BIT(0) +#define HSIO_MCB_SERDES1G_CFG 0xe8 +#define HSIO_MCB_SERDES1G_CFG_WR_ONE_SHOT BIT(31) +#define HSIO_MCB_SERDES1G_CFG_ADDR(x) (x) + +#define LRN_COMMON_ACCESS_CTRL 0x0 +#define LRN_COMMON_ACCESS_CTRL_MAC_TABLE_ACCESS_SHOT BIT(0) +#define LRN_COMMON_MAC_ACCESS_CFG0 0x4 +#define LRN_COMMON_MAC_ACCESS_CFG1 0x8 +#define LRN_COMMON_MAC_ACCESS_CFG2 0xc +#define LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_ADDR(x) (x) +#define LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_TYPE(x) ((x) << 12) +#define LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_VLD BIT(15) +#define LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_LOCKED BIT(16) +#define LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_CPU_COPY BIT(23) +#define LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_CPU_QU(x) ((x) << 24) + +#define QFWD_SYSTEM_SWITCH_PORT_MODE(x) (0x4 * (x)) +#define QFWD_SYSTEM_SWITCH_PORT_MODE_PORT_ENA BIT(17) + +#define QS_XTR_GRP_CFG(x) (0x0 + 4 * (x)) +#define QS_INJ_GRP_CFG(x) (0x24 + (x) * 4) + +#define QSYS_SYSTEM_RESET_CFG 0xf0 +#define QSYS_CALCFG_CAL_AUTO(x) (0x3d4 + 4 * (x)) +#define QSYS_CALCFG_CAL_CTRL 0x3e8 +#define QSYS_CALCFG_CAL_CTRL_CAL_MODE(x) ((x) << 11) +#define QSYS_RAM_CTRL_RAM_INIT 0x3ec + +#define REW_RAM_CTRL_RAM_INIT 0x53528 + +#define VOP_RAM_CTRL_RAM_INIT 0x43638 + +#define XTR_VALID_BYTES(x) (4 - ((x) & 3)) +#define MAC_VID 0 +#define CPU_PORT 53 +#define IFH_LEN 7 +#define JR2_BUF_CELL_SZ 60 +#define ETH_ALEN 6 +#define PGID_BROADCAST 510 +#define PGID_UNICAST 511 + +static char *regs_names[] = { + "port0", "port1", "port2", "port3", "port4", "port5", "port6", "port7", + "port8", "port9", "port10", "port11", "port12", "port13", "port14", + "port15", "port16", "port17", "port18", "port19", "port20", "port21", + "port22", "port23", "port24", "port25", "port26", "port27", "port28", + "port29", "port30", "port31", "port32", "port33", "port34", "port35", + "port36", "port37", "port38", "port39", "port40", "port41", "port42", + "port43", "port44", "port45", "port46", "port47", + "ana_ac", "ana_cl", "ana_l2", "asm", "hsio", "lrn", + "qfwd", "qs", "qsys", "rew", +}; + +#define REGS_NAMES_COUNT ARRAY_SIZE(regs_names) + 1 +#define MAX_PORT 48 + +enum jr2_ctrl_regs { + ANA_AC = MAX_PORT, + ANA_CL, + ANA_L2, + ASM, + HSIO, + LRN, + QFWD, + QS, + QSYS, + REW, +}; + +#define JR2_MIIM_BUS_COUNT 3 + +struct jr2_phy_port_t { + size_t phy_addr; + struct mii_dev *bus; +}; + +struct jr2_private { + void __iomem *regs[REGS_NAMES_COUNT]; + struct mii_dev *bus[JR2_MIIM_BUS_COUNT]; + struct jr2_phy_port_t ports[MAX_PORT]; +}; + +struct jr2_miim_dev { + void __iomem *regs; + phys_addr_t miim_base; + unsigned long miim_size; + struct mii_dev *bus; +}; + +static const unsigned long jr2_regs_qs[] = { + [MSCC_QS_XTR_RD] = 0x8, + [MSCC_QS_XTR_FLUSH] = 0x18, + [MSCC_QS_XTR_DATA_PRESENT] = 0x1c, + [MSCC_QS_INJ_WR] = 0x2c, + [MSCC_QS_INJ_CTRL] = 0x34, +}; + +static struct jr2_miim_dev miim[JR2_MIIM_BUS_COUNT]; +static int miim_count = -1; + +static int mscc_miim_wait_ready(struct jr2_miim_dev *miim) +{ + unsigned long deadline; + u32 val; + + deadline = timer_get_us() + 250000; + + do { + val = readl(miim->regs + GCB_MIIM_MII_STATUS); + } while (timer_get_us() <= deadline && (val & GCB_MIIM_STAT_BUSY)); + + if (val & GCB_MIIM_STAT_BUSY) + return -ETIMEDOUT; + + return 0; +} + +static int mscc_miim_read(struct mii_dev *bus, int addr, int devad, int reg) +{ + struct jr2_miim_dev *miim = (struct jr2_miim_dev *)bus->priv; + u32 val; + int ret; + + ret = mscc_miim_wait_ready(miim); + if (ret) + goto out; + + writel(GCB_MIIM_MII_CMD_VLD | GCB_MIIM_MII_CMD_PHYAD(addr) | + GCB_MIIM_MII_CMD_REGAD(reg) | GCB_MIIM_MII_CMD_OPR_READ, + miim->regs + GCB_MIIM_MII_CMD); + + ret = mscc_miim_wait_ready(miim); + if (ret) + goto out; + + val = readl(miim->regs + GCB_MIIM_DATA); + if (val & GCB_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 jr2_miim_dev *miim = (struct jr2_miim_dev *)bus->priv; + int ret; + + ret = mscc_miim_wait_ready(miim); + if (ret < 0) + goto out; + + writel(GCB_MIIM_MII_CMD_VLD | GCB_MIIM_MII_CMD_PHYAD(addr) | + GCB_MIIM_MII_CMD_REGAD(reg) | GCB_MIIM_MII_CMD_WRDATA(val) | + GCB_MIIM_MII_CMD_OPR_WRITE, miim->regs + GCB_MIIM_MII_CMD); + + out: + return ret; +} + +static struct mii_dev *jr2_mdiobus_init(phys_addr_t miim_base, + unsigned long miim_size) +{ + struct mii_dev *bus; + + bus = mdio_alloc(); + if (!bus) + return NULL; + + ++miim_count; + sprintf(bus->name, "miim-bus%d", miim_count); + + miim[miim_count].regs = ioremap(miim_base, miim_size); + miim[miim_count].miim_base = miim_base; + miim[miim_count].miim_size = miim_size; + bus->priv = &miim[miim_count]; + bus->read = mscc_miim_read; + bus->write = mscc_miim_write; + + if (mdio_register(bus)) + return NULL; + + miim[miim_count].bus = bus; + return bus; +} + +static void jr2_cpu_capture_setup(struct jr2_private *priv) +{ + /* ASM: No preamble and IFH prefix on CPU injected frames */ + writel(ASM_CFG_PORT_NO_PREAMBLE_ENA | + ASM_CFG_PORT_INJ_FORMAT_CFG(1), + priv->regs[ASM] + ASM_CFG_PORT(CPU_PORT)); + + /* Set Manual injection via DEVCPU_QS registers for CPU queue 0 */ + writel(0x5, priv->regs[QS] + QS_INJ_GRP_CFG(0)); + + /* Set Manual extraction via DEVCPU_QS registers for CPU queue 0 */ + writel(0x7, priv->regs[QS] + QS_XTR_GRP_CFG(0)); + + /* Enable CPU port for any frame transfer */ + setbits_le32(priv->regs[QFWD] + QFWD_SYSTEM_SWITCH_PORT_MODE(CPU_PORT), + QFWD_SYSTEM_SWITCH_PORT_MODE_PORT_ENA); + + /* Send a copy to CPU when found as forwarding entry */ + setbits_le32(priv->regs[ANA_L2] + ANA_L2_COMMON_FWD_CFG, + ANA_L2_COMMON_FWD_CFG_CPU_DMAC_COPY_ENA); +} + +static void jr2_port_init(struct jr2_private *priv, int port) +{ + void __iomem *regs = priv->regs[port]; + + /* Enable PCS */ + writel(DEV_PCS1G_CFG_PCS1G_CFG_PCS_ENA, + regs + DEV_PCS1G_CFG_PCS1G_CFG); + + /* Disable Signal Detect */ + writel(0, regs + DEV_PCS1G_CFG_PCS1G_SD); + + /* Enable MAC RX and TX */ + writel(DEV_MAC_CFG_MAC_ENA_RX_ENA | + DEV_MAC_CFG_MAC_ENA_TX_ENA, + regs + DEV_MAC_CFG_MAC_ENA); + + /* Clear sgmii_mode_ena */ + writel(0, regs + DEV_PCS1G_CFG_PCS1G_MODE); + + /* + * Clear sw_resolve_ena(bit 0) and set adv_ability to + * something meaningful just in case + */ + writel(DEV_PCS1G_CFG_PCS1G_ANEG_ADV_ABILITY(0x20), + regs + DEV_PCS1G_CFG_PCS1G_ANEG); + + /* Set MAC IFG Gaps */ + writel(DEV_MAC_CFG_MAC_IFG_TX_IFG(4) | + DEV_MAC_CFG_MAC_IFG_RX_IFG1(5) | + DEV_MAC_CFG_MAC_IFG_RX_IFG2(1), + regs + DEV_MAC_CFG_MAC_IFG); + + /* Set link speed and release all resets */ + writel(DEV_DEV_CFG_DEV_RST_CTRL_SPEED_SEL(2), + regs + DEV_DEV_CFG_DEV_RST_CTRL); + + /* Make VLAN aware for CPU traffic */ + writel(ANA_CL_PORT_VLAN_CFG_AWARE_ENA | + ANA_CL_PORT_VLAN_CFG_POP_CNT(1) | + MAC_VID, + priv->regs[ANA_CL] + ANA_CL_PORT_VLAN_CFG(port)); + + /* Enable CPU port for any frame transfer */ + setbits_le32(priv->regs[QFWD] + QFWD_SYSTEM_SWITCH_PORT_MODE(port), + QFWD_SYSTEM_SWITCH_PORT_MODE_PORT_ENA); +} + +static void serdes_write(void __iomem *base, u32 addr) +{ + u32 data; + + writel(HSIO_MCB_SERDES1G_CFG_WR_ONE_SHOT | + HSIO_MCB_SERDES1G_CFG_ADDR(addr), + base + HSIO_MCB_SERDES1G_CFG); + + do { + data = readl(base + HSIO_MCB_SERDES1G_CFG); + } while (data & HSIO_MCB_SERDES1G_CFG_WR_ONE_SHOT); + + mdelay(100); +} + +__weak void serdes_cfg(void __iomem *base) +{ + writel(0x0, base + HSIO_ANA_SERDES1G_SER_CFG); + writel(0x0, base + HSIO_DIG_SERDES1G_TP_CFG); + writel(0x0, base + HSIO_DIG_SERDES1G_DFT_CFG0); + writel(HSIO_ANA_SERDES1G_OB_CFG_RESISTOR_CTRL(1) | + HSIO_ANA_SERDES1G_OB_CFG_VCM_CTRL(4) | + HSIO_ANA_SERDES1G_OB_CFG_CMM_BIAS_CTRL(2) | + HSIO_ANA_SERDES1G_OB_CFG_AMP_CTRL(12) | + HSIO_ANA_SERDES1G_OB_CFG_SLP(3), + base + HSIO_ANA_SERDES1G_OB_CFG); + writel(HSIO_ANA_SERDES1G_IB_CFG_RESISTOR_CTRL(13) | + HSIO_ANA_SERDES1G_IB_CFG_EQ_GAIN(2) | + HSIO_ANA_SERDES1G_IB_CFG_ENA_OFFSET_COMP | + HSIO_ANA_SERDES1G_IB_CFG_ENA_DETLEV | + HSIO_ANA_SERDES1G_IB_CFG_ENA_CMV_TERM | + HSIO_ANA_SERDES1G_IB_CFG_DET_LEV(3) | + HSIO_ANA_SERDES1G_IB_CFG_ACJTAG_HYST(1), + base + HSIO_ANA_SERDES1G_IB_CFG); + writel(HSIO_ANA_SERDES1G_DES_CFG_BW_HYST(7) | + HSIO_ANA_SERDES1G_DES_CFG_BW_ANA(6) | + HSIO_ANA_SERDES1G_DES_CFG_MBTR_CTRL(2) | + HSIO_ANA_SERDES1G_DES_CFG_PHS_CTRL(6), + base + HSIO_ANA_SERDES1G_DES_CFG); + writel(HSIO_DIG_SERDES1G_MISC_CFG_LANE_RST, + base + HSIO_DIG_SERDES1G_MISC_CFG); + writel(HSIO_ANA_SERDES1G_PLL_CFG_FSM_ENA | + HSIO_ANA_SERDES1G_PLL_CFG_FSM_CTRL_DATA(0xc8) | + HSIO_ANA_SERDES1G_PLL_CFG_ENA_RC_DIV2, + base + HSIO_ANA_SERDES1G_PLL_CFG); + writel(HSIO_ANA_SERDES1G_COMMON_CFG_IF_MODE | + HSIO_ANA_SERDES1G_COMMON_CFG_ENA_LANE | + HSIO_ANA_SERDES1G_COMMON_CFG_SYS_RST, + base + HSIO_ANA_SERDES1G_COMMON_CFG); + + serdes_write(base, 0x1fe); + + setbits_le32(base + HSIO_ANA_SERDES1G_COMMON_CFG, + HSIO_ANA_SERDES1G_COMMON_CFG_SYS_RST); + + serdes_write(base, 0x1fe); + + clrbits_le32(base + HSIO_DIG_SERDES1G_MISC_CFG, + HSIO_DIG_SERDES1G_MISC_CFG_LANE_RST); + + serdes_write(base, 0x1fe); +} + +static int ram_init(u32 val, void __iomem *addr) +{ + writel(val, addr); + + if (wait_for_bit_le32(addr, BIT(1), false, 2000, false)) { + printf("Timeout in memory reset, reg = 0x%08x\n", val); + return 1; + } + + return 0; +} + +static int jr2_switch_init(struct jr2_private *priv) +{ + /* Initialize memories */ + ram_init(0x3, priv->regs[QSYS] + QSYS_RAM_CTRL_RAM_INIT); + ram_init(0x3, priv->regs[ASM] + ASM_RAM_CTRL_RAM_INIT); + ram_init(0x3, priv->regs[ANA_AC] + ANA_AC_RAM_CTRL_RAM_INIT); + ram_init(0x3, priv->regs[REW] + REW_RAM_CTRL_RAM_INIT); + + /* Reset counters */ + writel(0x1, priv->regs[ANA_AC] + ANA_AC_STAT_GLOBAL_CFG_PORT_RESET); + writel(0x1, priv->regs[ASM] + ASM_CFG_STAT_CFG); + + /* Enable switch-core and queue system */ + writel(0x1, priv->regs[QSYS] + QSYS_SYSTEM_RESET_CFG); + + /* enable serdes */ + serdes_cfg(priv->regs[HSIO]); + + return 0; +} + +static void jr2_switch_config(struct jr2_private *priv) +{ + writel(0x55555555, priv->regs[QSYS] + QSYS_CALCFG_CAL_AUTO(0)); + writel(0x55555555, priv->regs[QSYS] + QSYS_CALCFG_CAL_AUTO(1)); + writel(0x55555555, priv->regs[QSYS] + QSYS_CALCFG_CAL_AUTO(2)); + writel(0x55555555, priv->regs[QSYS] + QSYS_CALCFG_CAL_AUTO(3)); + + writel(readl(priv->regs[QSYS] + QSYS_CALCFG_CAL_CTRL) | + QSYS_CALCFG_CAL_CTRL_CAL_MODE(8), + priv->regs[QSYS] + QSYS_CALCFG_CAL_CTRL); +} + +static int jr2_initialize(struct jr2_private *priv) +{ + int ret, i; + + /* Initialize switch memories, enable core */ + ret = jr2_switch_init(priv); + if (ret) + return ret; + + jr2_switch_config(priv); + + for (i = 0; i < MAX_PORT; i++) + jr2_port_init(priv, i); + + jr2_cpu_capture_setup(priv); + + return 0; +} + +static inline int jr2_vlant_wait_for_completion(struct jr2_private *priv) +{ + if (wait_for_bit_le32(priv->regs[LRN] + LRN_COMMON_ACCESS_CTRL, + LRN_COMMON_ACCESS_CTRL_MAC_TABLE_ACCESS_SHOT, + false, 2000, false)) + return -ETIMEDOUT; + + return 0; +} + +static int jr2_mac_table_add(struct jr2_private *priv, + const unsigned char mac[ETH_ALEN], int pgid) +{ + u32 macl = 0, mach = 0; + + /* + * 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(mach, priv->regs[LRN] + LRN_COMMON_MAC_ACCESS_CFG0); + writel(macl, priv->regs[LRN] + LRN_COMMON_MAC_ACCESS_CFG1); + + writel(LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_ADDR(pgid) | + LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_TYPE(0x3) | + LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_CPU_COPY | + LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_CPU_QU(0) | + LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_VLD | + LRN_COMMON_MAC_ACCESS_CFG2_MAC_ENTRY_LOCKED, + priv->regs[LRN] + LRN_COMMON_MAC_ACCESS_CFG2); + + writel(LRN_COMMON_ACCESS_CTRL_MAC_TABLE_ACCESS_SHOT, + priv->regs[LRN] + LRN_COMMON_ACCESS_CTRL); + + return jr2_vlant_wait_for_completion(priv); +} + +static int jr2_write_hwaddr(struct udevice *dev) +{ + struct jr2_private *priv = dev_get_priv(dev); + struct eth_pdata *pdata = dev_get_platdata(dev); + + return jr2_mac_table_add(priv, pdata->enetaddr, PGID_UNICAST); +} + +static int jr2_start(struct udevice *dev) +{ + struct jr2_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 = jr2_initialize(priv); + if (ret) + return ret; + + /* Set MAC address tables entries for CPU redirection */ + ret = jr2_mac_table_add(priv, mac, PGID_BROADCAST); + if (ret) + return ret; + + ret = jr2_mac_table_add(priv, pdata->enetaddr, PGID_UNICAST); + if (ret) + return ret; + + return 0; +} + +static void jr2_stop(struct udevice *dev) +{ +} + +static int jr2_send(struct udevice *dev, void *packet, int length) +{ + struct jr2_private *priv = dev_get_priv(dev); + u32 ifh[IFH_LEN]; + u32 *buf = packet; + + memset(ifh, '\0', IFH_LEN); + + /* Set DST PORT_MASK */ + ifh[0] = htonl(0); + ifh[1] = htonl(0x1FFFFF); + ifh[2] = htonl(~0); + /* Set DST_MODE to INJECT and UPDATE_FCS */ + ifh[5] = htonl(0x4c0); + + return mscc_send(priv->regs[QS], jr2_regs_qs, + ifh, IFH_LEN, buf, length); +} + +static int jr2_recv(struct udevice *dev, int flags, uchar **packetp) +{ + struct jr2_private *priv = dev_get_priv(dev); + u32 *rxbuf = (u32 *)net_rx_packets[0]; + int byte_cnt = 0; + + byte_cnt = mscc_recv(priv->regs[QS], jr2_regs_qs, rxbuf, IFH_LEN, + false); + + *packetp = net_rx_packets[0]; + + return byte_cnt; +} + +static struct mii_dev *get_mdiobus(phys_addr_t base, unsigned long size) +{ + int i = 0; + + for (i = 0; i < JR2_MIIM_BUS_COUNT; ++i) + if (miim[i].miim_base == base && miim[i].miim_size == size) + return miim[i].bus; + + return NULL; +} + +static void add_port_entry(struct jr2_private *priv, size_t index, + size_t phy_addr, struct mii_dev *bus) +{ + priv->ports[index].phy_addr = phy_addr; + priv->ports[index].bus = bus; +} + +static int jr2_probe(struct udevice *dev) +{ + struct jr2_private *priv = dev_get_priv(dev); + int i; + struct resource res; + fdt32_t faddr; + phys_addr_t addr_base; + unsigned long addr_size; + ofnode eth_node, node, mdio_node; + size_t phy_addr; + struct mii_dev *bus; + struct ofnode_phandle_args phandle; + struct phy_device *phy; + + if (!priv) + return -EINVAL; + + /* Get registers and map them to the private structure */ + for (i = 0; i < ARRAY_SIZE(regs_names); i++) { + priv->regs[i] = dev_remap_addr_name(dev, regs_names[i]); + if (!priv->regs[i]) { + debug + ("Error can't get regs base addresses for %s\n", + regs_names[i]); + return -ENOMEM; + } + } + + /* Initialize miim buses */ + memset(&miim, 0x0, sizeof(struct jr2_miim_dev) * JR2_MIIM_BUS_COUNT); + + /* iterate all the ports and find out on which bus they are */ + i = 0; + eth_node = dev_read_first_subnode(dev); + for (node = ofnode_first_subnode(eth_node); + ofnode_valid(node); + node = ofnode_next_subnode(node)) { + if (ofnode_read_resource(node, 0, &res)) + return -ENOMEM; + i = res.start; + + ofnode_parse_phandle_with_args(node, "phy-handle", NULL, 0, 0, + &phandle); + + /* Get phy address on mdio bus */ + if (ofnode_read_resource(phandle.node, 0, &res)) + return -ENOMEM; + phy_addr = res.start; + + /* Get mdio node */ + mdio_node = ofnode_get_parent(phandle.node); + + if (ofnode_read_resource(mdio_node, 0, &res)) + return -ENOMEM; + faddr = cpu_to_fdt32(res.start); + + addr_base = ofnode_translate_address(mdio_node, &faddr); + addr_size = res.end - res.start; + + /* If the bus is new then create a new bus */ + if (!get_mdiobus(addr_base, addr_size)) + priv->bus[miim_count] = + jr2_mdiobus_init(addr_base, addr_size); + + /* Connect mdio bus with the port */ + bus = get_mdiobus(addr_base, addr_size); + add_port_entry(priv, i, phy_addr, bus); + } + + for (i = 0; i < MAX_PORT; i++) { + if (!priv->ports[i].bus) + continue; + + phy = phy_connect(priv->ports[i].bus, + priv->ports[i].phy_addr, dev, + PHY_INTERFACE_MODE_NONE); + if (phy) + board_phy_config(phy); + } + + return 0; +} + +static int jr2_remove(struct udevice *dev) +{ + struct jr2_private *priv = dev_get_priv(dev); + int i; + + for (i = 0; i < JR2_MIIM_BUS_COUNT; i++) { + mdio_unregister(priv->bus[i]); + mdio_free(priv->bus[i]); + } + + return 0; +} + +static const struct eth_ops jr2_ops = { + .start = jr2_start, + .stop = jr2_stop, + .send = jr2_send, + .recv = jr2_recv, + .write_hwaddr = jr2_write_hwaddr, +}; + +static const struct udevice_id mscc_jr2_ids[] = { + {.compatible = "mscc,vsc7454-switch" }, + { /* Sentinel */ } +}; + +U_BOOT_DRIVER(jr2) = { + .name = "jr2-switch", + .id = UCLASS_ETH, + .of_match = mscc_jr2_ids, + .probe = jr2_probe, + .remove = jr2_remove, + .ops = &jr2_ops, + .priv_auto_alloc_size = sizeof(struct jr2_private), + .platdata_auto_alloc_size = sizeof(struct eth_pdata), +}; diff --git a/include/configs/vcoreiii.h b/include/configs/vcoreiii.h index 8c30c6f..5690146 100644 --- a/include/configs/vcoreiii.h +++ b/include/configs/vcoreiii.h @@ -10,7 +10,7 @@
/* Onboard devices */
-#define CONFIG_SYS_MALLOC_LEN 0x100000 +#define CONFIG_SYS_MALLOC_LEN 0x1F0000 #define CONFIG_SYS_LOAD_ADDR 0x00100000 #define CONFIG_SYS_INIT_SP_OFFSET 0x400000