From: Abbie Chang abbie.chang@cortina-access.com

Add Cortina Access Ethernet device driver for CAxxxx SoCs. This driver supports both legacy and DM_ETH network models.

Signed-off-by: Aaron Tseng aaron.tseng@cortina-access.com Signed-off-by: Alex Nemirovsky alex.nemirovsky@cortina-access.com Signed-off-by: Abbie Chang abbie.chang@cortina-access.com

CC: Joe Hershberger joe.hershberger@ni.com CC: Abbie Chang abbie.chang@Cortina-Access.com CC: Tom Rini trini@konsulko.com

---

Changes in v3: - cleanup up usage of ca_status to return errno

Changes in v2: - clean up old debug code - reference CRC functions already provided in u-boot core - remove unused code, ex: CA_IN/CA_OUT - refactor the design of register read/write, union -> struct - remove platform dependent code

MAINTAINERS | 4 + drivers/net/Kconfig | 7 + drivers/net/Makefile | 1 + drivers/net/cortina_ni.c | 1168 ++++++++++++++++++++++++++++++++++++++++++++++ drivers/net/cortina_ni.h | 405 ++++++++++++++++ 5 files changed, 1585 insertions(+) create mode 100644 drivers/net/cortina_ni.c create mode 100644 drivers/net/cortina_ni.h

diff --git a/MAINTAINERS b/MAINTAINERS index 101f4e1..dd4156c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -197,6 +197,8 @@ F: drivers/led/led_cortina.c F: drivers/mmc/ca_dw_mmc.c F: drivers/i2c/i2c-cortina.c F: drivers/i2c/i2c-cortina.h +F: drivers/net/cortina_ni.c +F: drivers/net/cortina_ni.h

ARM/CZ.NIC TURRIS MOX SUPPORT M: Marek Behun marek.behun@nic.cz @@ -781,6 +783,8 @@ F: drivers/led/led_cortina.c F: drivers/mmc/ca_dw_mmc.c F: drivers/i2c/i2c-cortina.c F: drivers/i2c/i2c-cortina.h +F: drivers/net/cortina_ni.c +F: drivers/net/cortina_ni.h

MIPS MSCC M: Gregory CLEMENT gregory.clement@bootlin.com diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 039f9fb..893a159 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -149,6 +149,13 @@ config BCMGENET help This driver supports the BCMGENET Ethernet MAC.

+config CORTINA_NI_ENET + bool "Cortina-Access Ethernet driver" + depends on DM_ETH && CORTINA_PLATFORM + help + This driver supports the Cortina-Access Ethernet MAC for + all supported CAxxxx SoCs. + config DWC_ETH_QOS bool "Synopsys DWC Ethernet QOS device support" depends on DM_ETH diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 1ecdc40..a6f04bc 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_DRIVER_AX88180) += ax88180.o obj-$(CONFIG_BCM_SF2_ETH) += bcm-sf2-eth.o obj-$(CONFIG_BCM_SF2_ETH_GMAC) += bcm-sf2-eth-gmac.o obj-$(CONFIG_CALXEDA_XGMAC) += calxedaxgmac.o +obj-$(CONFIG_CORTINA_NI_ENET) += cortina_ni.o obj-$(CONFIG_CS8900) += cs8900.o obj-$(CONFIG_TULIP) += dc2114x.o obj-$(CONFIG_ETH_DESIGNWARE) += designware.o diff --git a/drivers/net/cortina_ni.c b/drivers/net/cortina_ni.c new file mode 100644 index 0000000..edf9846 --- /dev/null +++ b/drivers/net/cortina_ni.c @@ -0,0 +1,1168 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/* + * Copyright (C) 2020 Cortina Access Inc. + * Author: Aaron Tseng aaron.tseng@cortina-access.com + * + * Ethernet MAC Driver for all supported CAxxxx SoCs + */ + +#include <common.h> +#include <command.h> +#include <malloc.h> +#include <net.h> +#include <miiphy.h> +#include <env.h> +#include <linux/delay.h> +#include <u-boot/crc.h> +#include <led.h> + +#include "cortina_ni.h" + +#define HEADER_A_SIZE 8 + +enum ca_led_state_t { + CA_LED_OFF = 0, + CA_LED_ON = 1, +}; + +static struct udevice *curr_dev; +static int ca_ni_ofdata_to_platdata(struct udevice *dev); + +static u32 *rdwrptr_adv_one(u32 *x, unsigned long base, unsigned long max) +{ + if (x + 1 >= (u32 *)max) + return (u32 *)base; + else + return (x + 1); +} + +static int phyaddr_to_port(int phy_addr) +{ + int idx; + + for (idx = 0; idx < NI_PORT_MAX; idx++) + if (phy_addr == port_map[idx].phy_addr) + return port_map[idx].active_port; + return 0; +} + +static int port_to_phyaddr(int active_port) +{ + int idx; + + for (idx = 0; idx < NI_PORT_MAX; idx++) + if (active_port == port_map[idx].active_port) + return port_map[idx].phy_addr; + return 0; +} + +static u32 REG_TO_U32(void *reg) +{ + return *(u32 *)reg; +} + +static void ca_reg_read(void *reg, u64 base, u64 offset) +{ + u32 *val = (u32 *)reg; + + *val = readl(KSEG1_ATU_XLAT(base + offset)); +} + +static void ca_reg_write(void *reg, u64 base, u64 offset) +{ + u32 val = *(u32 *)reg; + + writel(val, KSEG1_ATU_XLAT(base + offset)); +} + +static int ca_mdio_write_rgmii(unsigned int addr, + unsigned int offset, + unsigned short data) +{ + struct PER_MDIO_ADDR_t mdio_addr; + struct PER_MDIO_CTRL_t mdio_ctrl; + /* up to 10000 cycles*/ + unsigned int loop_wait = __MDIO_ACCESS_TIMEOUT; + struct cortina_ni_priv *priv = dev_get_priv(curr_dev); + + memset(&mdio_addr, 0, sizeof(mdio_addr)); + mdio_addr.mdio_addr = addr; + mdio_addr.mdio_offset = offset; + mdio_addr.mdio_rd_wr = __MDIO_WR_FLAG; + ca_reg_write(&mdio_addr, (u64)priv->per_mdio_base_addr, + PER_MDIO_ADDR_OFFSET); + ca_reg_write(&data, (u64)priv->per_mdio_base_addr, + PER_MDIO_WRDATA_OFFSET); + + debug("%s: mdio_addr=0x%x\n", __func__, REG_TO_U32(&mdio_addr)); + + memset(&mdio_ctrl, 0, sizeof(mdio_ctrl)); + mdio_ctrl.mdiostart = 1; + ca_reg_write(&mdio_ctrl, (u64)priv->per_mdio_base_addr, + PER_MDIO_CTRL_OFFSET); + + debug("%s: phy_addr=%d, offset=%d, data=0x%x\n", + __func__, addr, offset, data); + + do { + ca_reg_read(&mdio_ctrl, (u64)priv->per_mdio_base_addr, + PER_MDIO_CTRL_OFFSET); + if (mdio_ctrl.mdiodone) { + ca_reg_write(&mdio_ctrl, (u64)priv->per_mdio_base_addr, + PER_MDIO_CTRL_OFFSET); + return 0; + } + } while (--loop_wait); + + printf("%s: PHY write timeout!!!\n", __func__); + return -ETIMEDOUT; +} + +int ca_mdio_write(unsigned int addr, + unsigned int offset, + unsigned short data) +{ + u32 reg_addr, reg_val; + struct NI_MDIO_OPER_T mdio_oper; + + /* support range: 1~31*/ + if (addr < CA_MDIO_ADDR_MIN || addr > CA_MDIO_ADDR_MAX) + return -EINVAL; + + /* the phy addr 5 is connect to RGMII */ + if (addr >= 5) + return ca_mdio_write_rgmii(addr, offset, data); + + memset(&mdio_oper, 0, sizeof(mdio_oper)); + mdio_oper.reg_off = offset; + mdio_oper.phy_addr = addr; + mdio_oper.reg_base = CA_NI_MDIO_REG_BASE; + reg_val = data; + memcpy(&reg_addr, &mdio_oper, sizeof(reg_addr)); + ca_reg_write(&reg_val, (u64)reg_addr, 0); + + debug("%s: mdio_oper=0x%x, data=0x%x\n", + __func__, REG_TO_U32(&mdio_oper), data); + return 0; +} + +static int ca_mdio_read_rgmii(unsigned int addr, + unsigned int offset, + unsigned short *data) +{ + struct PER_MDIO_ADDR_t mdio_addr; + struct PER_MDIO_CTRL_t mdio_ctrl; + struct PER_MDIO_RDDATA_t read_data; + unsigned int loop_wait = __MDIO_ACCESS_TIMEOUT; + struct cortina_ni_priv *priv = dev_get_priv(curr_dev); + + memset(&mdio_addr, 0, sizeof(mdio_addr)); + mdio_addr.mdio_addr = addr; + mdio_addr.mdio_offset = offset; + mdio_addr.mdio_rd_wr = __MDIO_RD_FLAG; + ca_reg_write(&mdio_addr, (u64)priv->per_mdio_base_addr, + PER_MDIO_ADDR_OFFSET); + + memset(&mdio_ctrl, 0, sizeof(mdio_ctrl)); + mdio_ctrl.mdiostart = 1; + ca_reg_write(&mdio_ctrl, (u64)priv->per_mdio_base_addr, + PER_MDIO_CTRL_OFFSET); + + do { + ca_reg_read(&mdio_ctrl, (u64)priv->per_mdio_base_addr, + PER_MDIO_CTRL_OFFSET); + if (mdio_ctrl.mdiodone) { + ca_reg_write(&mdio_ctrl, (u64)priv->per_mdio_base_addr, + PER_MDIO_CTRL_OFFSET); + ca_reg_read(&read_data, (u64)priv->per_mdio_base_addr, + PER_MDIO_RDDATA_OFFSET); + *data = read_data.mdio_rddata; + return 0; + } + } while (--loop_wait); + + printf("%s: TIMEOUT!!\n", __func__); + return -ETIMEDOUT; +} + +int ca_mdio_read(unsigned int addr, + unsigned int offset, + unsigned short *data) +{ + u32 reg_addr, reg_val; + struct NI_MDIO_OPER_T mdio_oper; + + if (!data) + return -EINVAL; + + /* support range: 1~31 */ + if (addr < CA_MDIO_ADDR_MIN || addr > CA_MDIO_ADDR_MAX) + return -EINVAL; + + /* the phy addr 5 is connect to RGMII */ + if (addr >= 5) + return ca_mdio_read_rgmii(addr, offset, data); + + memset(&mdio_oper, 0, sizeof(mdio_oper)); + mdio_oper.reg_off = offset; + mdio_oper.phy_addr = addr; + mdio_oper.reg_base = CA_NI_MDIO_REG_BASE; + reg_val = *data; + memcpy(&reg_addr, &mdio_oper, sizeof(reg_addr)); + ca_reg_read(&reg_val, (u64)reg_addr, 0); + *data = reg_val; + return 0; +} + +int ca_miiphy_read(const char *devname, + unsigned char addr, + unsigned char reg, + unsigned short *value) +{ + return ca_mdio_read(addr, reg, value); +} + +int ca_miiphy_write(const char *devname, + unsigned char addr, + unsigned char reg, + unsigned short value) +{ + return ca_mdio_write(addr, reg, value); +} + +static int cortina_mdio_read(struct mii_dev *bus, int addr, int devad, int reg) +{ + unsigned short data; + + ca_mdio_read(addr, reg, &data); + return data; +} + +static int cortina_mdio_write(struct mii_dev *bus, int addr, int devad, int reg, + u16 val) +{ + ca_mdio_write(addr, reg, val); + return 0; +} + +static void ca_ni_setup_mac_addr(void) +{ + unsigned char mac[6]; + + struct NI_HV_GLB_MAC_ADDR_CFG0_t mac_addr_cfg0; + struct NI_HV_GLB_MAC_ADDR_CFG1_t mac_addr_cfg1; + struct NI_HV_PT_PORT_STATIC_CFG_t port_static_cfg; + struct NI_HV_XRAM_CPUXRAM_CFG_t cpuxram_cfg; + struct cortina_ni_priv *priv = dev_get_priv(curr_dev); + + /* parsing ethaddr and set to NI registers. */ + if (eth_env_get_enetaddr("ethaddr", mac)) { + /* The complete MAC address consists of + * {MAC_ADDR0_mac_addr0[0-3], MAC_ADDR1_mac_addr1[4], + * PT_PORT_STATIC_CFG_mac_addr6[5]}. + */ + mac_addr_cfg0.mac_addr0 = (mac[0] << 24) + (mac[1] << 16) + + (mac[2] << 8) + mac[3]; + ca_reg_write(&mac_addr_cfg0, (u64)priv->ni_hv_base_addr, + NI_HV_GLB_MAC_ADDR_CFG0_OFFSET); + + memset(&mac_addr_cfg1, 0, sizeof(mac_addr_cfg1)); + mac_addr_cfg1.mac_addr1 = mac[4]; + ca_reg_write(&mac_addr_cfg1, (u64)priv->ni_hv_base_addr, + NI_HV_GLB_MAC_ADDR_CFG1_OFFSET); + + ca_reg_read(&port_static_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_PT_PORT_STATIC_CFG_OFFSET + + (APB0_NI_HV_PT_STRIDE * active_port)); + + port_static_cfg.mac_addr6 = mac[5]; + ca_reg_write(&port_static_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_PT_PORT_STATIC_CFG_OFFSET + + (APB0_NI_HV_PT_STRIDE * active_port)); + + /* received only Broadcast and Address matched packets */ + ca_reg_read(&cpuxram_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CFG_OFFSET); + cpuxram_cfg.xram_mgmt_promisc_mode = 0; + cpuxram_cfg.rx_0_cpu_pkt_dis = 0; + cpuxram_cfg.tx_0_cpu_pkt_dis = 0; + ca_reg_write(&cpuxram_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CFG_OFFSET); + } else { + /* received all packets(promiscuous mode) */ + ca_reg_read(&cpuxram_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CFG_OFFSET); + cpuxram_cfg.xram_mgmt_promisc_mode = 3; + cpuxram_cfg.rx_0_cpu_pkt_dis = 0; + cpuxram_cfg.tx_0_cpu_pkt_dis = 0; + ca_reg_write(&cpuxram_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CFG_OFFSET); + } +} + +static void ca_ni_enable_tx_rx(void) +{ + struct NI_HV_PT_RXMAC_CFG_t rxmac_cfg; + struct NI_HV_PT_TXMAC_CFG_t txmac_cfg; + + struct cortina_ni_priv *priv = dev_get_priv(curr_dev); + + /* Enable TX and RX functions */ + ca_reg_read(&rxmac_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_PT_RXMAC_CFG_OFFSET + + (APB0_NI_HV_PT_STRIDE * active_port)); + rxmac_cfg.rx_en = 1; + ca_reg_write(&rxmac_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_PT_RXMAC_CFG_OFFSET + + (APB0_NI_HV_PT_STRIDE * active_port)); + + ca_reg_read(&txmac_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_PT_TXMAC_CFG_OFFSET + + (APB0_NI_HV_PT_STRIDE * active_port)); + txmac_cfg.tx_en = 1; + ca_reg_write(&txmac_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_PT_TXMAC_CFG_OFFSET + + (APB0_NI_HV_PT_STRIDE * active_port)); +} + +#define AUTO_SCAN_TIMEOUT 3000 /* 3 seconds */ +__weak int ca_ni_auto_scan_active_port(void) +{ + u8 phy_addr; + u32 start_time; + unsigned short data; + + start_time = get_timer(0); + while (get_timer(start_time) < AUTO_SCAN_TIMEOUT) { + phy_addr = 1; + for (; phy_addr < 6; phy_addr++) { + ca_mdio_read(phy_addr, 1, &data); + if (data & 0x04) { + active_port = phyaddr_to_port(phy_addr); + return 0; + } + } + } + + printf("%s: auto scan active_port timeout.\n", __func__); + return -1; +} + +__weak int invalid_active_port(int port) +{ + if (active_port < NI_PORT_0 || active_port > NI_PORT_4) + return -1; + else + return 0; +} + +static int ca_phy_probe(struct udevice *dev) +{ + struct cortina_ni_priv *priv = dev_get_priv(dev); + struct phy_device *int_phydev, *ext_phydev; + int auto_scan_active_port = 0, tmp_port; + char *buf; + + /* Initialize internal phy device */ + int_phydev = phy_connect(priv->mdio_bus, port_to_phyaddr(NI_PORT_3), + dev, priv->phy_interface); + if (int_phydev) { + int_phydev->supported &= PHY_GBIT_FEATURES; + int_phydev->advertising = int_phydev->supported; + phy_config(int_phydev); + } else { + printf("%s: There is no internal phy device\n", __func__); + } + + /* Initialize external phy device */ + ext_phydev = phy_connect(priv->mdio_bus, port_to_phyaddr(NI_PORT_4), + dev, priv->phy_interface); + if (ext_phydev) { + ext_phydev->supported &= PHY_GBIT_FEATURES; + ext_phydev->advertising = int_phydev->supported; + phy_config(ext_phydev); + } else { + printf("%s: There is no external phy device\n", __func__); + } + + /* auto scan the first link up port as active_port */ + buf = env_get("auto_scan_active_port"); + if (buf != 0) { + auto_scan_active_port = simple_strtoul(buf, NULL, 0); + printf("%s: auto_scan_active_port=%d\n", __func__, + auto_scan_active_port); + } + + if (auto_scan_active_port) { + ca_ni_auto_scan_active_port(); + } else { + buf = env_get("active_port"); + if (buf != 0) { + tmp_port = simple_strtoul(buf, NULL, 0); + if (invalid_active_port(active_port)) { + printf("ERROR: doesn't support this port."); + free(dev); + free(priv); + return 1; + } + + active_port = tmp_port; + } + } + + printf("%s: active_port=%d\n", __func__, active_port); + if (active_port == NI_PORT_4) + priv->phydev = ext_phydev; + else + priv->phydev = int_phydev; + + return 0; +} + +static void ca_ni_led(int port, int status) +{ + struct udevice *led_dev; + char label[10]; + + if (IS_ENABLED(CONFIG_LED_CORTINA)) { + snprintf(label, sizeof(label), "led%d", port); + debug("%s: set port %d led %s.\n", + __func__, port, status ? "on" : "off"); + led_get_by_label(label, &led_dev); + led_set_state(led_dev, status); + } +} + +static void cortina_ni_reset(void) +{ + int i; + struct NI_HV_GLB_INIT_DONE_t init_done; + struct NI_HV_GLB_INTF_RST_CONFIG_t intf_rst_config; + struct NI_HV_GLB_STATIC_CFG_t static_cfg; + struct GLOBAL_BLOCK_RESET_t glb_blk_reset; + + struct cortina_ni_priv *priv = dev_get_priv(curr_dev); + + /* NI global resets */ + ca_reg_read(&glb_blk_reset, (u64)priv->glb_base_addr, + GLOBAL_BLOCK_RESET_OFFSET); + glb_blk_reset.reset_ni = 1; + ca_reg_write(&glb_blk_reset, (u64)priv->glb_base_addr, + GLOBAL_BLOCK_RESET_OFFSET); + /* Remove resets */ + glb_blk_reset.reset_ni = 0; + ca_reg_write(&glb_blk_reset, (u64)priv->glb_base_addr, + GLOBAL_BLOCK_RESET_OFFSET); + + /* check the ready bit of NI module */ + for (i = 0; i < NI_READ_POLL_COUNT; i++) { + ca_reg_read(&init_done, (u64)priv->ni_hv_base_addr, + NI_HV_GLB_INIT_DONE_OFFSET); + if (init_done.ni_init_done) + break; + } + if (i == NI_READ_POLL_COUNT) { + printf("%s: NI init done not ready, init_done=0x%x!!!\n", + __func__, init_done.ni_init_done); + } + + ca_reg_read(&intf_rst_config, (u64)priv->ni_hv_base_addr, + NI_HV_GLB_INTF_RST_CONFIG_OFFSET); + switch (active_port) { + case NI_PORT_0: + intf_rst_config.intf_rst_p0 = 0; + intf_rst_config.mac_rx_rst_p0 = 0; + intf_rst_config.mac_tx_rst_p0 = 0; + break; + case NI_PORT_1: + intf_rst_config.intf_rst_p1 = 0; + intf_rst_config.mac_rx_rst_p1 = 0; + intf_rst_config.mac_tx_rst_p1 = 0; + break; + case NI_PORT_2: + intf_rst_config.intf_rst_p2 = 0; + intf_rst_config.mac_rx_rst_p2 = 0; + intf_rst_config.mac_tx_rst_p2 = 0; + break; + case NI_PORT_3: + intf_rst_config.intf_rst_p3 = 0; + intf_rst_config.mac_tx_rst_p3 = 0; + intf_rst_config.mac_rx_rst_p3 = 0; + break; + case NI_PORT_4: + intf_rst_config.intf_rst_p4 = 0; + intf_rst_config.mac_tx_rst_p4 = 0; + intf_rst_config.mac_rx_rst_p4 = 0; + break; + } + + ca_reg_write(&intf_rst_config, (u64)priv->ni_hv_base_addr, + NI_HV_GLB_INTF_RST_CONFIG_OFFSET); + + /* Only one GMAC can connect to CPU */ + ca_reg_read(&static_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_GLB_STATIC_CFG_OFFSET); + static_cfg.port_to_cpu = active_port; + static_cfg.txmib_mode = 1; + static_cfg.rxmib_mode = 1; + + ca_reg_write(&static_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_GLB_STATIC_CFG_OFFSET); +} + +static int cortina_ni_init(struct udevice *dev) +{ + int ret; + struct NI_HV_XRAM_CPUXRAM_ADRCFG_RX_t cpuxram_adrcfg_rx; + struct NI_HV_XRAM_CPUXRAM_ADRCFG_TX_0_t cpuxram_adrcfg_tx; + struct NI_HV_XRAM_CPUXRAM_CFG_t cpuxram_cfg; + struct NI_HV_PT_PORT_STATIC_CFG_t port_static_cfg; + struct NI_HV_PT_PORT_GLB_CFG_t port_glb_cfg; + + struct cortina_ni_priv *priv = dev_get_priv(dev); + struct phy_device *phydev = priv->phydev; + + ret = phy_startup(priv->phydev); + if (ret) { + ca_ni_led(active_port, CA_LED_OFF); + printf("Could not initialize PHY %s, active_port=%d\n", + priv->phydev->dev->name, active_port); + return ret; + } + + if (!priv->phydev->link) { + printf("%s: link down.\n", priv->phydev->dev->name); + return 0; + } + + ca_ni_led(active_port, CA_LED_ON); + printf("PHY ID 0x%08X %dMbps %s duplex\n", + phydev->phy_id, phydev->speed, + phydev->duplex == DUPLEX_HALF ? "half" : "full"); + + /* RX XRAM ADDRESS CONFIG (start and end address) */ + memset(&cpuxram_adrcfg_rx, 0, sizeof(cpuxram_adrcfg_rx)); + cpuxram_adrcfg_rx.rx_top_addr = RX_TOP_ADDR; + cpuxram_adrcfg_rx.rx_base_addr = RX_BASE_ADDR; + ca_reg_write(&cpuxram_adrcfg_rx, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_ADRCFG_RX_OFFSET); + + /* TX XRAM ADDRESS CONFIG (start and end address) */ + memset(&cpuxram_adrcfg_tx, 0, sizeof(cpuxram_adrcfg_tx)); + cpuxram_adrcfg_tx.tx_top_addr = TX_TOP_ADDR; + cpuxram_adrcfg_tx.tx_base_addr = TX_BASE_ADDR; + ca_reg_write(&cpuxram_adrcfg_tx, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_ADRCFG_TX_0_OFFSET); + + /* + * Configuration for Management Ethernet Interface: + * - RGMII 1000 mode or RGMII 100 mode + * - MAC mode + */ + ca_reg_read(&port_static_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_PT_PORT_STATIC_CFG_OFFSET + + (APB0_NI_HV_PT_STRIDE * active_port)); + if (phydev->speed == SPEED_1000) { + /* port 4 connects to RGMII PHY */ + if (phydev->addr == 5) + port_static_cfg.int_cfg = GE_MAC_INTF_RGMII_1000; + else + port_static_cfg.int_cfg = GE_MAC_INTF_GMII; + } else { + /* port 4 connects to RGMII PHY */ + if (phydev->addr == 5) + port_static_cfg.int_cfg = GE_MAC_INTF_RGMII_100; + else + port_static_cfg.int_cfg = GE_MAC_INTF_MII; + } + + ca_reg_write(&port_static_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_PT_PORT_STATIC_CFG_OFFSET + + (APB0_NI_HV_PT_STRIDE * active_port)); + + ca_reg_read(&port_glb_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_PT_PORT_GLB_CFG_OFFSET + + (APB0_NI_HV_PT_STRIDE * active_port)); + port_glb_cfg.speed = phydev->speed == SPEED_10 ? 1 : 0; + port_glb_cfg.duplex = phydev->duplex == DUPLEX_HALF ? 1 : 0; + ca_reg_write(&port_glb_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_PT_PORT_GLB_CFG_OFFSET + + (APB0_NI_HV_PT_STRIDE * active_port)); + + /* Need to toggle the tx and rx cpu_pkt_dis bit */ + /* after changing Address config register. */ + ca_reg_read(&cpuxram_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CFG_OFFSET); + cpuxram_cfg.rx_0_cpu_pkt_dis = 1; + cpuxram_cfg.tx_0_cpu_pkt_dis = 1; + ca_reg_write(&cpuxram_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CFG_OFFSET); + + ca_reg_read(&cpuxram_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CFG_OFFSET); + cpuxram_cfg.rx_0_cpu_pkt_dis = 0; + cpuxram_cfg.tx_0_cpu_pkt_dis = 0; + ca_reg_write(&cpuxram_cfg, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CFG_OFFSET); + + ca_ni_enable_tx_rx(); + + return 0; +} + +/********************************************* + * Packet receive routine from Management FE + * Expects a previously allocated buffer and + * fills the length + * Retruns 0 on success -1 on failure + *******************************************/ +int cortina_ni_recv(struct udevice *netdev) +{ + struct cortina_ni_priv *priv = dev_get_priv(netdev); + struct NI_HEADER_X_T header_x; + u32 next_link; + u32 pktlen = 0; + u32 sw_rx_rd_ptr; + u32 hw_rx_wr_ptr; + u32 *rx_xram_ptr; + int loop; + u32 *data_ptr; + struct NI_PACKET_STATUS packet_status; + struct NI_HV_XRAM_CPUXRAM_CPU_STA_RX_0_t cpuxram_cpu_sta_rx; + struct NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0_t cpuxram_cpu_cfg_rx; + int index = 0; + int blk_num; + u8 *ptr; + + /* get the hw write pointer */ + memset(&cpuxram_cpu_sta_rx, 0, sizeof(cpuxram_cpu_sta_rx)); + ca_reg_read(&cpuxram_cpu_sta_rx, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_STA_RX_0_OFFSET); + hw_rx_wr_ptr = cpuxram_cpu_sta_rx.pkt_wr_ptr; + + /* get the sw read pointer */ + memset(&cpuxram_cpu_cfg_rx, 0, sizeof(cpuxram_cpu_cfg_rx)); + ca_reg_read(&cpuxram_cpu_cfg_rx, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0_OFFSET); + sw_rx_rd_ptr = cpuxram_cpu_cfg_rx.pkt_rd_ptr; + + debug("%s: NI_HV_XRAM_CPUXRAM_CPU_STA_RX_0 = 0x%p, ", __func__, + priv->ni_hv_base_addr + NI_HV_XRAM_CPUXRAM_CPU_STA_RX_0_OFFSET); + debug("NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0 = 0x%p\n", + priv->ni_hv_base_addr + NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0_OFFSET); + debug("%s : RX hw_wr_ptr = %d, sw_rd_ptr = %d\n", + __func__, hw_rx_wr_ptr, sw_rx_rd_ptr); + + while (sw_rx_rd_ptr != hw_rx_wr_ptr) { + /* Point to the absolute memory address of XRAM + * where read pointer is + */ + rx_xram_ptr = (u32 *) + ((unsigned long)NI_XRAM_BASE + sw_rx_rd_ptr * 8); + + /* Wrap around if required */ + if (rx_xram_ptr >= (u32 *)(unsigned long)priv->rx_xram_end_adr) + rx_xram_ptr = (u32 *) + (unsigned long)priv->rx_xram_base_adr; + + /* Checking header XR. Do not update the read pointer yet */ + /* skip unused 32-bit in Header XR */ + rx_xram_ptr = rdwrptr_adv_one(rx_xram_ptr, + priv->rx_xram_base_adr, + priv->rx_xram_end_adr); + + memcpy(&header_x, rx_xram_ptr, sizeof(header_x)); + next_link = header_x.next_link; + /* Header XR [31:0] */ + + if (*rx_xram_ptr == 0xffffffff) + printf("%s: XRAM Error !\n", __func__); + + debug("%s : RX next link 0x%x\n", __func__, next_link); + debug("%s : bytes_valid %x\n", __func__, header_x.bytes_valid); + + if (header_x.ownership == 0) { + /* point to Packet status [31:0] */ + rx_xram_ptr = rdwrptr_adv_one(rx_xram_ptr, + priv->rx_xram_base_adr, + priv->rx_xram_end_adr); + + memcpy(&packet_status, rx_xram_ptr, + sizeof(rx_xram_ptr)); + debug("%s: packet status=0x%x\n", + __func__, REG_TO_U32(&packet_status)); + if (packet_status.valid == 0) { + debug("%s: Invalid Packet !!, ", __func__); + debug("next_link=%d\n", next_link); + + /* Update the software read pointer */ + ca_reg_write(&next_link, + (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0_OFFSET); + return 0; + } + + if (packet_status.drop || + packet_status.runt || + packet_status.oversize || + packet_status.jabber || + packet_status.crc_error || + packet_status.jumbo) { + debug("%s: Error Packet!!, ", __func__); + debug("next_link=%d\n", next_link); + + /* Update the software read pointer */ + ca_reg_write(&next_link, + (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0_OFFSET); + return 0; + } + + /* check whether packet size is larger than 1514 */ + if (packet_status.packet_size > 1518) { + debug("%s: Error Packet !! Packet size=%d, ", + __func__, packet_status.packet_size); + debug("larger than 1518, next_link=%d\n", + next_link); + + /* Update the software read pointer */ + ca_reg_write(&next_link, + (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0_OFFSET); + return 0; + } + + rx_xram_ptr = rdwrptr_adv_one(rx_xram_ptr, + priv->rx_xram_base_adr, + priv->rx_xram_end_adr); + + pktlen = packet_status.packet_size; + + debug("%s : rx packet length = %d\n", + __func__, packet_status.packet_size); + + rx_xram_ptr = rdwrptr_adv_one(rx_xram_ptr, + priv->rx_xram_base_adr, + priv->rx_xram_end_adr); + + data_ptr = (u32 *)net_rx_packets[index]; + + /* Read out the packet */ + /* Data is in little endian form in the XRAM */ + + /* Send the packet to upper layer */ + + debug("%s: packet data[]=", __func__); + + for (loop = 0; loop <= pktlen / 4; loop++) { + ptr = (u8 *)rx_xram_ptr; + if (loop < 10) + debug("[0x%x]-[0x%x]-[0x%x]-[0x%x]", + ptr[0], ptr[1], ptr[2], ptr[3]); + *data_ptr++ = *rx_xram_ptr++; + /* Wrap around if required */ + if (rx_xram_ptr >= (u32 *) + (unsigned long)priv->rx_xram_end_adr) { + rx_xram_ptr = (u32 *)(unsigned long) + (priv->rx_xram_base_adr); + } + } + + debug("\n"); + net_process_received_packet(net_rx_packets[index], + pktlen); + if (++index >= PKTBUFSRX) + index = 0; + blk_num = net_rx_packets[index][0x2c] * 255 + + net_rx_packets[index][0x2d]; + debug("%s: tftp block number=%d\n", __func__, blk_num); + + /* Update the software read pointer */ + ca_reg_write(&next_link, + (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0_OFFSET); + } + + /* get the hw write pointer */ + ca_reg_read(&cpuxram_cpu_sta_rx, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_STA_RX_0_OFFSET); + hw_rx_wr_ptr = cpuxram_cpu_sta_rx.pkt_wr_ptr; + + /* get the sw read pointer */ + ca_reg_read(&sw_rx_rd_ptr, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0_OFFSET); + } + return 0; +} + +static int cortina_ni_send(struct udevice *dev, void *packet, int length) +{ + struct cortina_ni_priv *priv = dev_get_priv(dev); + u32 hw_tx_rd_ptr = 0; + u32 sw_tx_wr_ptr = 0; + unsigned int new_pkt_len; + unsigned char valid_bytes = 0; + u32 *tx_xram_ptr; + u16 next_link = 0; + unsigned char *pkt_buf_ptr; + unsigned int loop; + u32 ca_crc32; + struct NI_HEADER_X_T hdr_xt; + int pad = 0; + static unsigned char pkt_buf[2048]; + u32 *data_ptr; + struct NI_HV_XRAM_CPUXRAM_CPU_CFG_TX_0_t cpuxram_cpu_cfg_tx; + u8 *ptr; + + if (!packet || length > 2032) + return -1; + + /* Get the hardware read pointer */ + ca_reg_read(&hw_tx_rd_ptr, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_STAT_TX_0_OFFSET); + + /* Get the software write pointer */ + ca_reg_read(&sw_tx_wr_ptr, (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_CFG_TX_0_OFFSET); + + debug("%s: NI_HV_XRAM_CPUXRAM_CPU_STAT_TX_0=0x%p, ", + __func__, + KSEG1_ATU_XLAT(priv->ni_hv_base_addr + + NI_HV_XRAM_CPUXRAM_CPU_STAT_TX_0_OFFSET)); + debug("NI_HV_XRAM_CPUXRAM_CPU_CFG_TX_0=0x%p\n", + KSEG1_ATU_XLAT(priv->ni_hv_base_addr + + NI_HV_XRAM_CPUXRAM_CPU_CFG_TX_0_OFFSET)); + debug("%s : hw_tx_rd_ptr = %d\n", __func__, hw_tx_rd_ptr); + debug("%s : sw_tx_wr_ptr = %d\n", __func__, sw_tx_wr_ptr); + + if (hw_tx_rd_ptr != sw_tx_wr_ptr) { + printf("%s: Tx FIFO is not available!\n", __func__); + return 1; + } + + /* a workaround on 2015/10/01 + * the packet size+CRC should be 8-byte alignment + */ + if (((length + 4) % 8) != 0) + length += (8 - ((length + 4) % 8)); + + memset(pkt_buf, 0x00, sizeof(pkt_buf)); + + /* add 8-byte header_A at the beginning of packet */ + memcpy(&pkt_buf[HEADER_A_SIZE], (const void *)packet, length); + + pad = 64 - (length + 4); /* if packet length < 60 */ + pad = (pad < 0) ? 0 : pad; + + debug("%s: length=%d, pad=%d\n", __func__, length, pad); + + new_pkt_len = length + pad; /* new packet length */ + + pkt_buf_ptr = (unsigned char *)pkt_buf; + + /* Calculate the CRC32, skip 8-byte header_A */ + ca_crc32 = crc32(0, (u8 *)(pkt_buf_ptr + HEADER_A_SIZE), new_pkt_len); + + debug("%s: crc32 is 0x%x\n", __func__, ca_crc32); + debug("%s: ~crc32 is 0x%x\n", __func__, ~ca_crc32); + debug("%s: pkt len %d\n", __func__, new_pkt_len); + /* should add 8-byte header_! */ + /* CRC will re-calculated by hardware */ + memcpy((pkt_buf_ptr + new_pkt_len + HEADER_A_SIZE), + (u8 *)(&ca_crc32), sizeof(ca_crc32)); + new_pkt_len = new_pkt_len + 4; /* add CRC */ + + valid_bytes = new_pkt_len % 8; + valid_bytes = valid_bytes ? valid_bytes : 0; + debug("%s: valid_bytes %d\n", __func__, valid_bytes); + + /* should add 8-byte headerA */ + next_link = sw_tx_wr_ptr + + (new_pkt_len + 7 + HEADER_A_SIZE) / 8; /* for headr XT */ + /* add header */ + next_link = next_link + 1; + /* Wrap around if required */ + if (next_link > priv->tx_xram_end) { + next_link = priv->tx_xram_start + + (next_link - (priv->tx_xram_end + 1)); + } + + debug("%s: TX next_link %x\n", __func__, next_link); + memset(&hdr_xt, 0, sizeof(hdr_xt)); + hdr_xt.ownership = 1; + hdr_xt.bytes_valid = valid_bytes; + hdr_xt.next_link = next_link; + + tx_xram_ptr = (u32 *)((unsigned long)NI_XRAM_BASE + sw_tx_wr_ptr * 8); + + /* Wrap around if required */ + if (tx_xram_ptr >= (u32 *)(unsigned long)priv->tx_xram_end_adr) + tx_xram_ptr = (u32 *)(unsigned long)priv->tx_xram_base_adr; + + tx_xram_ptr = rdwrptr_adv_one(tx_xram_ptr, + priv->tx_xram_base_adr, + priv->tx_xram_end_adr); + + memcpy(tx_xram_ptr, &hdr_xt, sizeof(*tx_xram_ptr)); + + tx_xram_ptr = rdwrptr_adv_one(tx_xram_ptr, + priv->tx_xram_base_adr, + priv->tx_xram_end_adr); + + /* Now to copy the data. The first byte on the line goes first */ + data_ptr = (u32 *)pkt_buf_ptr; + debug("%s: packet data[]=", __func__); + + /* copy header_A to XRAM */ + for (loop = 0; loop <= (new_pkt_len + HEADER_A_SIZE) / 4; loop++) { + ptr = (u8 *)data_ptr; + if ((loop % 4) == 0) + debug("\n"); + debug("[0x%x]-[0x%x]-[0x%x]-[0x%x]-", + ptr[0], ptr[1], ptr[2], ptr[3]); + + *tx_xram_ptr = *data_ptr++; + tx_xram_ptr = rdwrptr_adv_one(tx_xram_ptr, + priv->tx_xram_base_adr, + priv->tx_xram_end_adr); + } + debug("\n"); + + /* Publish the software write pointer */ + cpuxram_cpu_cfg_tx.pkt_wr_ptr = next_link; + ca_reg_write(&cpuxram_cpu_cfg_tx, + (u64)priv->ni_hv_base_addr, + NI_HV_XRAM_CPUXRAM_CPU_CFG_TX_0_OFFSET); + + return 0; +} + +static void cortina_ni_halt(struct udevice *netdev) +{ + /* Nothing to do for now. */ +} + +#define GPHY_CAL_LEN 6 +struct gphy_cal { + u32 reg_off; + u32 value; +}; + +static struct gphy_cal gphy_cal_vlaues[GPHY_CAL_LEN] = { + {0xf43380fc, 0xbcd}, + {0xf43380dc, 0xeeee}, + {0xf43380d8, 0xeeee}, + {0xf43380fc, 0xbce}, + {0xf43380c0, 0x7777}, + {0xf43380c4, 0x7777} +}; + +__weak void do_internal_gphy_cal(void) +{ + int i, port; + u32 reg_off, value; + + for (port = 0; port < 4; port++) { + for (i = 0; i < GPHY_CAL_LEN; i++) { + reg_off = gphy_cal_vlaues[i].reg_off + (port * 0x80); + value = gphy_cal_vlaues[i].value; + ca_reg_write(&value, reg_off, 0); + mdelay(50); + } + } +} + +static int ca_mdio_register(struct udevice *dev) +{ + struct cortina_ni_priv *priv = dev_get_priv(dev); + struct mii_dev *mdio_bus = mdio_alloc(); + int ret; + + if (!mdio_bus) + return -ENOMEM; + + mdio_bus->read = cortina_mdio_read; + mdio_bus->write = cortina_mdio_write; + snprintf(mdio_bus->name, sizeof(mdio_bus->name), dev->name); + + mdio_bus->priv = (void *)priv; + + ret = mdio_register(mdio_bus); + if (ret) + return ret; + + priv->mdio_bus = mdio_bus; + return 0; +} + +__weak void ca_rgmii_init(struct cortina_ni_priv *priv) +{ + /* hardware settings for RGMII port */ + struct GLOBAL_GLOBAL_CONFIG_t glb_config; + struct GLOBAL_IO_DRIVE_CONTROL_t io_drive_control; + + /* Generating 25Mhz reference clock for switch */ + ca_reg_read(&glb_config, (u64)priv->glb_base_addr, + GLOBAL_GLOBAL_CONFIG_OFFSET); + glb_config.refclk_sel = 0x01; + glb_config.ext_reset = 0x01; + ca_reg_write(&glb_config, (u64)priv->glb_base_addr, + GLOBAL_GLOBAL_CONFIG_OFFSET); + + mdelay(20); + + /* should do a external reset */ + ca_reg_read(&glb_config, (u64)priv->glb_base_addr, + GLOBAL_GLOBAL_CONFIG_OFFSET); + glb_config.ext_reset = 0x0; + ca_reg_write(&glb_config, (u64)priv->glb_base_addr, + GLOBAL_GLOBAL_CONFIG_OFFSET); + + ca_reg_read(&io_drive_control, (u64)priv->glb_base_addr, + GLOBAL_IO_DRIVE_CONTROL_OFFSET); + io_drive_control.gmac_mode = 2; + io_drive_control.gmac_dn = 1; + io_drive_control.gmac_dp = 1; + ca_reg_write(&io_drive_control, (u64)priv->glb_base_addr, + GLOBAL_IO_DRIVE_CONTROL_OFFSET); +} + +int ca_eth_initialize(struct udevice *dev) +{ + struct cortina_ni_priv *priv; + int ret, reg_value; + + priv = dev_get_priv(dev); + priv->rx_xram_base_adr = NI_XRAM_BASE + (RX_BASE_ADDR * 8); + priv->rx_xram_end_adr = NI_XRAM_BASE + ((RX_TOP_ADDR + 1) * 8); + priv->rx_xram_start = RX_BASE_ADDR; + priv->rx_xram_end = RX_TOP_ADDR; + priv->tx_xram_base_adr = NI_XRAM_BASE + (TX_BASE_ADDR * 8); + priv->tx_xram_end_adr = NI_XRAM_BASE + ((TX_TOP_ADDR + 1) * 8); + priv->tx_xram_start = TX_BASE_ADDR; + priv->tx_xram_end = TX_TOP_ADDR; + + curr_dev = dev; + debug("%s: rx_base_addr:%x\t rx_top_addr %x\n", + __func__, priv->rx_xram_start, priv->rx_xram_end); + debug("%s: tx_base_addr:%x\t tx_top_addr %x\n", + __func__, priv->tx_xram_start, priv->tx_xram_end); + debug("%s: rx physical start address = %x end address = %x\n", + __func__, priv->rx_xram_base_adr, priv->rx_xram_end_adr); + debug("%s: tx physical start address = %x end address = %x\n", + __func__, priv->tx_xram_base_adr, priv->tx_xram_end_adr); + + /* MDIO register */ + ret = ca_mdio_register(dev); + if (ret) + return ret; + + /* set MDIO pre-scale value */ + ca_reg_read(&reg_value, (u64)priv->per_mdio_base_addr, + PER_MDIO_CFG_OFFSET); + reg_value = reg_value | 0x00280000; + ca_reg_write(&reg_value, (u64)priv->per_mdio_base_addr, + PER_MDIO_CFG_OFFSET); + + ca_phy_probe(dev); + priv->phydev->addr = port_to_phyaddr(active_port); + + ca_ni_led(active_port, CA_LED_ON); + + cortina_ni_reset(); + + printf("%s: active_port=%d, phy_addr=%d\n", + __func__, active_port, priv->phydev->addr); + printf("%s: phy_id=0x%x, phy_id & PHY_ID_MASK=0x%x\n", __func__, + priv->phydev->phy_id, priv->phydev->phy_id & 0xFFFFFFF0); + + /* parsing ethaddr and set to NI registers. */ + ca_ni_setup_mac_addr(); + +#ifdef MIIPHY_REGISTER + /* the phy_read and phy_write + * should meet the proto type of miiphy_register + */ + miiphy_register(dev->name, ca_miiphy_read, ca_miiphy_write); +#endif + + ca_rgmii_init(priv); + + /* do internal gphy calibration */ + do_internal_gphy_cal(); + return 0; +} + +static int cortina_eth_start(struct udevice *dev) +{ + return cortina_ni_init(dev); +} + +static int cortina_eth_send(struct udevice *dev, void *packet, int length) +{ + return cortina_ni_send(dev, packet, length); +} + +static int cortina_eth_recv(struct udevice *dev, int flags, uchar **packetp) +{ + return cortina_ni_recv(dev); +} + +static void cortina_eth_stop(struct udevice *dev) +{ + cortina_ni_halt(dev); +} + +static int cortina_eth_probe(struct udevice *dev) +{ + return ca_eth_initialize(dev); +} + +static int ca_ni_ofdata_to_platdata(struct udevice *dev) +{ + struct cortina_ni_priv *priv = dev_get_priv(dev); + + priv->glb_base_addr = dev_remap_addr_index(dev, 0); + if (!priv->glb_base_addr) + return -ENOENT; + printf("%s: priv->glb_base_addr for index 0 is 0x%p\n", + __func__, priv->glb_base_addr); + + priv->per_mdio_base_addr = dev_remap_addr_index(dev, 1); + if (!priv->per_mdio_base_addr) + return -ENOENT; + printf("%s: priv->per_mdio_base_addr for index 1 is 0x%p\n", + __func__, priv->per_mdio_base_addr); + + priv->ni_hv_base_addr = dev_remap_addr_index(dev, 2); + if (!priv->ni_hv_base_addr) + return -ENOENT; + printf("%s: priv->ni_hv_base_addr for index 2 is 0x%p\n", + __func__, priv->ni_hv_base_addr); + + return 0; +} + +static const struct eth_ops cortina_eth_ops = { + .start = cortina_eth_start, + .send = cortina_eth_send, + .recv = cortina_eth_recv, + .stop = cortina_eth_stop, +}; + +static const struct udevice_id cortina_eth_ids[] = { + { .compatible = "eth_cortina" }, + { } +}; + +U_BOOT_DRIVER(eth_cortina) = { + .name = "eth_cortina", + .id = UCLASS_ETH, + .of_match = cortina_eth_ids, + .probe = cortina_eth_probe, + .ops = &cortina_eth_ops, + .priv_auto_alloc_size = sizeof(struct cortina_ni_priv), + .platdata_auto_alloc_size = sizeof(struct eth_pdata), + .ofdata_to_platdata = ca_ni_ofdata_to_platdata, +}; diff --git a/drivers/net/cortina_ni.h b/drivers/net/cortina_ni.h new file mode 100644 index 0000000..1006e36 --- /dev/null +++ b/drivers/net/cortina_ni.h @@ -0,0 +1,405 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +/* + * Copyright (C) 2020 Cortina Access Inc. + * Author: Aaron Tseng aaron.tseng@cortina-access.com + * + * Ethernet MAC Driver for all supported CAxxxx SoCs + */ + +#ifndef __CORTINA_NI_H +#define __CORTINA_NI_H + +#include <asm/types.h> +#include <asm/io.h> +#include <config.h> + +#define GE_MAC_INTF_GMII 0x0 +#define GE_MAC_INTF_MII 0x1 +#define GE_MAC_INTF_RGMII_1000 0x2 +#define GE_MAC_INTF_RGMII_100 0x3 + +/* Defines the base and top address in CPU XRA + * for packets to cpu instance 0 + * 0x300 * 8-byte = 6K-byte + */ +#define RX_TOP_ADDR 0x02FF +#define RX_BASE_ADDR 0x0000 + +/* Defines the base and top address in CPU XRAM + * for packets from cpu instance 0. + * 0x100 * 8-byte = 2K-byte + */ +#define TX_TOP_ADDR 0x03FF +#define TX_BASE_ADDR 0x0300 + +#define NI_XRAM_BASE 0xF4500000 + +#if !defined(__ASSEMBLER__) && !defined(__ASSEMBLY__) +struct cortina_ni_priv { + unsigned int rx_xram_base_adr; + unsigned int rx_xram_end_adr; + unsigned short rx_xram_start; + unsigned short rx_xram_end; + unsigned int tx_xram_base_adr; + unsigned int tx_xram_end_adr; + unsigned short tx_xram_start; + unsigned short tx_xram_end; + void __iomem *glb_base_addr; + void __iomem *per_mdio_base_addr; + void __iomem *ni_hv_base_addr; + + struct mii_dev *mdio_bus; + struct phy_device *phydev; + int phy_interface; +}; + +struct NI_HEADER_X_T { + unsigned int next_link : 10; /* bits 9: 0 */ + unsigned int bytes_valid : 4; /* bits 13:10 */ + unsigned int reserved : 16; /* bits 29:14 */ + unsigned int hdr_a : 1; /* bits 30:30 */ + unsigned int ownership : 1; /* bits 31:31 */ +}; + +struct NI_PACKET_STATUS { + unsigned int packet_size : 14; /* bits 13:0 */ + unsigned int byte_valid : 4; /* bits 17:14 */ + unsigned int pfc : 1; /* bits 18:18 */ + unsigned int valid : 1; /* bits 19:19 */ + unsigned int drop : 1; /* bits 20:20 */ + unsigned int runt : 1; /* bits 21:21 */ + unsigned int oversize : 1; /* bits 22:22 */ + unsigned int jumbo : 1; /* bits 23:23 */ + unsigned int link_status : 1; /* bits 24:24 */ + unsigned int jabber : 1; /* bits 25:25 */ + unsigned int crc_error : 1; /* bits 26:26 */ + unsigned int pause : 1; /* bits 27:27 */ + unsigned int oam : 1; /* bits 28:28 */ + unsigned int unknown_opcode : 1; /* bits 29:29 */ + unsigned int multicast : 1; /* bits 30:30 */ + unsigned int broadcast : 1; /* bits 31:31 */ +}; + +struct NI_MDIO_OPER_T { + unsigned int reserved : 2; /* bits 1:0 */ + unsigned int reg_off : 5; /* bits 6:2 */ + unsigned int phy_addr : 5; /* bits 11:7 */ + unsigned int reg_base : 20; /* bits 31:12 */ +}; + +enum ca_port_t { + NI_PORT_0 = 0, + NI_PORT_1, + NI_PORT_2, + NI_PORT_3, + NI_PORT_4, + NI_PORT_5, + NI_PORT_MAX, +}; + +struct port_map_s { + int active_port; + int phy_addr; +}; + +extern struct port_map_s port_map[NI_PORT_MAX]; +extern int active_port; + +#define __MDIO_WR_FLAG (0) +#define __MDIO_RD_FLAG (1) +#define __MDIO_ACCESS_TIMEOUT (1000000) +#define CA_MDIO_ADDR_MIN (1) +#define CA_MDIO_ADDR_MAX (31) + +#endif /* !__ASSEMBLER__ */ + +/* Copy from registers.h */ +struct NI_HV_GLB_MAC_ADDR_CFG0_t { + unsigned int mac_addr0 : 32; /* bits 31:0 */ +}; + +struct NI_HV_GLB_MAC_ADDR_CFG1_t { + unsigned int mac_addr1 : 8; /* bits 7:0 */ + unsigned int rsrvd1 : 24; +}; + +struct NI_HV_PT_PORT_STATIC_CFG_t { + unsigned int int_cfg : 4; /* bits 3:0 */ + unsigned int phy_mode : 1; /* bits 4:4 */ + unsigned int rmii_clksrc : 1; /* bits 5:5 */ + unsigned int inv_clk_in : 1; /* bits 6:6 */ + unsigned int inv_clk_out : 1; /* bits 7:7 */ + unsigned int inv_rxclk_out : 1; /* bits 8:8 */ + unsigned int tx_use_gefifo : 1; /* bits 9:9 */ + unsigned int smii_tx_stat : 1; /* bits 10:10 */ + unsigned int crs_polarity : 1; /* bits 11:11 */ + unsigned int lpbk_mode : 2; /* bits 13:12 */ + unsigned int gmii_like_half_duplex_en : 1; /* bits 14:14 */ + unsigned int sup_tx_to_rx_lpbk_data : 1; /* bits 15:15 */ + unsigned int rsrvd1 : 8; + unsigned int mac_addr6 : 8; /* bits 31:24 */ +}; + +struct NI_HV_XRAM_CPUXRAM_CFG_t { + unsigned int rx_0_cpu_pkt_dis : 1; /* bits 0:0 */ + unsigned int rsrvd1 : 8; + unsigned int tx_0_cpu_pkt_dis : 1; /* bits 9:9 */ + unsigned int rsrvd2 : 1; + unsigned int rx_x_drop_err_pkt : 1; /* bits 11:11 */ + unsigned int xram_mgmt_dis_drop_ovsz_pkt : 1; /* bits 12:12 */ + unsigned int xram_mgmt_term_large_pkt : 1; /* bits 13:13 */ + unsigned int xram_mgmt_promisc_mode : 2; /* bits 15:14 */ + unsigned int xram_cntr_debug_mode : 1; /* bits 16:16 */ + unsigned int xram_cntr_op_code : 2; /* bits 18:17 */ + unsigned int rsrvd3 : 2; + unsigned int xram_rx_mgmtfifo_srst : 1; /* bits 21:21 */ + unsigned int xram_dma_fifo_srst : 1; /* bits 22:22 */ + unsigned int rsrvd4 : 9; +}; + +struct NI_HV_PT_RXMAC_CFG_t { + unsigned int rx_en : 1; /* bits 0:0 */ + unsigned int rsrvd1 : 7; + unsigned int rx_flow_disable : 1; /* bits 8:8 */ + unsigned int rsrvd2 : 3; + unsigned int rx_flow_to_tx_en : 1; /* bits 12:12 */ + unsigned int rx_pfc_disable : 1; /* bits 13:13 */ + unsigned int rsrvd3 : 15; + unsigned int send_pg_data : 1; /* bits 29:29 */ + unsigned int rsrvd4 : 2; +}; + +struct NI_HV_PT_TXMAC_CFG_t { + unsigned int tx_en : 1; /* bits 0:0 */ + unsigned int rsrvd1 : 7; + unsigned int mac_crc_calc_en : 1; /* bits 8:8 */ + unsigned int tx_ipg_sel : 3; /* bits 11:9 */ + unsigned int tx_flow_disable : 1; /* bits 12:12 */ + unsigned int tx_drain : 1; /* bits 13:13 */ + unsigned int tx_pfc_disable : 1; /* bits 14:14 */ + unsigned int tx_pau_sel : 2; /* bits 16:15 */ + unsigned int rsrvd2 : 9; + unsigned int tx_auto_xon : 1; /* bits 26:26 */ + unsigned int rsrvd3 : 1; + unsigned int pass_thru_hdr : 1; /* bits 28:28 */ + unsigned int rsrvd4 : 3; +}; + +struct NI_HV_GLB_INTF_RST_CONFIG_t { + unsigned int intf_rst_p0 : 1; /* bits 0:0 */ + unsigned int intf_rst_p1 : 1; /* bits 1:1 */ + unsigned int intf_rst_p2 : 1; /* bits 2:2 */ + unsigned int intf_rst_p3 : 1; /* bits 3:3 */ + unsigned int intf_rst_p4 : 1; /* bits 4:4 */ + unsigned int mac_rx_rst_p0 : 1; /* bits 5:5 */ + unsigned int mac_rx_rst_p1 : 1; /* bits 6:6 */ + unsigned int mac_rx_rst_p2 : 1; /* bits 7:7 */ + unsigned int mac_rx_rst_p3 : 1; /* bits 8:8 */ + unsigned int mac_rx_rst_p4 : 1; /* bits 9:9 */ + unsigned int mac_tx_rst_p0 : 1; /* bits 10:10 */ + unsigned int mac_tx_rst_p1 : 1; /* bits 11:11 */ + unsigned int mac_tx_rst_p2 : 1; /* bits 12:12 */ + unsigned int mac_tx_rst_p3 : 1; /* bits 13:13 */ + unsigned int mac_tx_rst_p4 : 1; /* bits 14:14 */ + unsigned int port_rst_p5 : 1; /* bits 15:15 */ + unsigned int pcs_rst_p6 : 1; /* bits 16:16 */ + unsigned int pcs_rst_p7 : 1; /* bits 17:17 */ + unsigned int mac_rst_p6 : 1; /* bits 18:18 */ + unsigned int mac_rst_p7 : 1; /* bits 19:19 */ + unsigned int rsrvd1 : 12; +}; + +struct NI_HV_GLB_STATIC_CFG_t { + unsigned int port_to_cpu : 4; /* bits 3:0 */ + unsigned int mgmt_pt_to_fe_also : 1; /* bits 4:4 */ + unsigned int txcrc_chk_en : 1; /* bits 5:5 */ + unsigned int p4_rgmii_tx_clk_phase : 2; /* bits 7:6 */ + unsigned int p4_rgmii_tx_data_order : 1; /* bits 8:8 */ + unsigned int rsrvd1 : 7; + unsigned int rxmib_mode : 1; /* bits 16:16 */ + unsigned int txmib_mode : 1; /* bits 17:17 */ + unsigned int eth_sch_rdy_pkt : 1; /* bits 18:18 */ + unsigned int rsrvd2 : 1; + unsigned int rxaui_mode : 2; /* bits 21:20 */ + unsigned int rxaui_sigdet : 2; /* bits 23:22 */ + unsigned int cnt_op_mode : 3; /* bits 26:24 */ + unsigned int rsrvd3 : 5; +}; + +struct GLOBAL_BLOCK_RESET_t { + unsigned int reset_ni : 1; /* bits 0:0 */ + unsigned int reset_l2fe : 1; /* bits 1:1 */ + unsigned int reset_l2tm : 1; /* bits 2:2 */ + unsigned int reset_l3fe : 1; /* bits 3:3 */ + unsigned int reset_sdram : 1; /* bits 4:4 */ + unsigned int reset_tqm : 1; /* bits 5:5 */ + unsigned int reset_pcie0 : 1; /* bits 6:6 */ + unsigned int reset_pcie1 : 1; /* bits 7:7 */ + unsigned int reset_pcie2 : 1; /* bits 8:8 */ + unsigned int reset_sata : 1; /* bits 9:9 */ + unsigned int reset_gic400 : 1; /* bits 10:10 */ + unsigned int rsrvd1 : 2; + unsigned int reset_usb : 1; /* bits 13:13 */ + unsigned int reset_flash : 1; /* bits 14:14 */ + unsigned int reset_per : 1; /* bits 15:15 */ + unsigned int reset_dma : 1; /* bits 16:16 */ + unsigned int reset_rtc : 1; /* bits 17:17 */ + unsigned int reset_pe0 : 1; /* bits 18:18 */ + unsigned int reset_pe1 : 1; /* bits 19:19 */ + unsigned int reset_rcpu0 : 1; /* bits 20:20 */ + unsigned int reset_rcpu1 : 1; /* bits 21:21 */ + unsigned int reset_sadb : 1; /* bits 22:22 */ + unsigned int rsrvd2 : 1; + unsigned int reset_rcrypto : 1; /* bits 24:24 */ + unsigned int reset_ldma : 1; /* bits 25:25 */ + unsigned int reset_fbm : 1; /* bits 26:26 */ + unsigned int reset_eaxi : 1; /* bits 27:27 */ + unsigned int reset_sd : 1; /* bits 28:28 */ + unsigned int reset_otprom : 1; /* bits 29:29 */ + unsigned int rsrvd3 : 2; +}; + +struct PER_MDIO_ADDR_t { + unsigned int mdio_addr : 5; /* bits 4:0 */ + unsigned int rsrvd1 : 3; + unsigned int mdio_offset : 5; /* bits 12:8 */ + unsigned int rsrvd2 : 2; + unsigned int mdio_rd_wr : 1; /* bits 15:15 */ + unsigned int mdio_st : 1; /* bits 16:16 */ + unsigned int rsrvd3 : 1; + unsigned int mdio_op : 2; /* bits 19:18 */ + unsigned int rsrvd4 : 12; +}; + +struct PER_MDIO_CTRL_t { + unsigned int mdiodone : 1; /* bits 0:0 */ + unsigned int rsrvd1 : 6; + unsigned int mdiostart : 1; /* bits 7:7 */ + unsigned int rsrvd2 : 24; +}; + +struct PER_MDIO_RDDATA_t { + unsigned int mdio_rddata : 16; /* bits 15:0 */ + unsigned int rsrvd1 : 16; +}; + +/* + * XRAM + */ + +struct NI_HV_XRAM_CPUXRAM_ADRCFG_RX_t { + unsigned int rx_base_addr : 10; /* bits 9:0 */ + unsigned int rsrvd1 : 6; + unsigned int rx_top_addr : 10; /* bits 25:16 */ + unsigned int rsrvd2 : 6; +}; + +struct NI_HV_XRAM_CPUXRAM_ADRCFG_TX_0_t { + unsigned int tx_base_addr : 10; /* bits 9:0 */ + unsigned int rsrvd1 : 6; + unsigned int tx_top_addr : 10; /* bits 25:16 */ + unsigned int rsrvd2 : 6; +}; + +struct NI_HV_XRAM_CPUXRAM_CPU_STA_RX_0_t { + unsigned int pkt_wr_ptr : 10; /* bits 9:0 */ + unsigned int rsrvd1 : 5; + unsigned int int_colsc_thresh_reached : 1; /* bits 15:15 */ + unsigned int rsrvd2 : 16; +}; + +struct NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0_t { + unsigned int pkt_rd_ptr : 10; /* bits 9:0 */ + unsigned int rsrvd1 : 22; +}; + +struct NI_HV_XRAM_CPUXRAM_CPU_CFG_TX_0_t { + unsigned int pkt_wr_ptr : 10; /* bits 9:0 */ + unsigned int rsrvd1 : 22; +}; + +struct GLOBAL_GLOBAL_CONFIG_t { + unsigned int rsrvd1 : 4; + unsigned int wd_reset_subsys_enable : 1; /* bits 4:4 */ + unsigned int rsrvd2 : 1; + unsigned int wd_reset_all_blocks : 1; /* bits 6:6 */ + unsigned int wd_reset_remap : 1; /* bits 7:7 */ + unsigned int wd_reset_ext_reset : 1; /* bits 8:8 */ + unsigned int ext_reset : 1; /* bits 9:9 */ + unsigned int cfg_pcie_0_clken : 1; /* bits 10:10 */ + unsigned int cfg_sata_clken : 1; /* bits 11:11 */ + unsigned int cfg_pcie_1_clken : 1; /* bits 12:12 */ + unsigned int rsrvd3 : 1; + unsigned int cfg_pcie_2_clken : 1; /* bits 14:14 */ + unsigned int rsrvd4 : 2; + unsigned int ext_eth_refclk : 1; /* bits 17:17 */ + unsigned int refclk_sel : 2; /* bits 19:18 */ + unsigned int rsrvd5 : 7; + unsigned int l3fe_pd : 1; /* bits 27:27 */ + unsigned int offload0_pd : 1; /* bits 28:28 */ + unsigned int offload1_pd : 1; /* bits 29:29 */ + unsigned int crypto_pd : 1; /* bits 30:30 */ + unsigned int core_pd : 1; /* bits 31:31 */ +}; + +struct GLOBAL_IO_DRIVE_CONTROL_t { + unsigned int gmac_dp : 3; /* bits 2:0 */ + unsigned int gmac_dn : 3; /* bits 5:3 */ + unsigned int gmac_mode : 2; /* bits 7:6 */ + unsigned int gmac_ds : 1; /* bits 8:8 */ + unsigned int flash_ds : 1; /* bits 9:9 */ + unsigned int nu_ds : 1; /* bits 10:10 */ + unsigned int ssp_ds : 1; /* bits 11:11 */ + unsigned int spi_ds : 1; /* bits 12:12 */ + unsigned int gpio_ds : 1; /* bits 13:13 */ + unsigned int misc_ds : 1; /* bits 14:14 */ + unsigned int eaxi_ds : 1; /* bits 15:15 */ + unsigned int sd_ds : 8; /* bits 23:16 */ + unsigned int rsrvd1 : 8; +}; + +struct NI_HV_GLB_INIT_DONE_t { + unsigned int rsrvd1 : 1; + unsigned int ni_init_done : 1; /* bits 1:1 */ + unsigned int rsrvd2 : 30; +}; + +struct NI_HV_PT_PORT_GLB_CFG_t { + unsigned int speed : 1; /* bits 0:0 */ + unsigned int duplex : 1; /* bits 1:1 */ + unsigned int link_status : 1; /* bits 2:2 */ + unsigned int link_stat_mask : 1; /* bits 3:3 */ + unsigned int rsrvd1 : 7; + unsigned int power_dwn_rx : 1; /* bits 11:11 */ + unsigned int power_dwn_tx : 1; /* bits 12:12 */ + unsigned int tx_intf_lp_time : 1; /* bits 13:13 */ + unsigned int rsrvd2 : 18; +}; + +#define NI_HV_GLB_INIT_DONE_OFFSET 0x004 +#define NI_HV_GLB_INTF_RST_CONFIG_OFFSET 0x008 +#define NI_HV_GLB_STATIC_CFG_OFFSET 0x00c + +#define NI_HV_PT_PORT_STATIC_CFG_OFFSET NI_HV_PT_BASE +#define NI_HV_PT_PORT_GLB_CFG_OFFSET (0x4 + NI_HV_PT_BASE) +#define NI_HV_PT_RXMAC_CFG_OFFSET (0x8 + NI_HV_PT_BASE) +#define NI_HV_PT_TXMAC_CFG_OFFSET (0x14 + NI_HV_PT_BASE) + +#define NI_HV_XRAM_CPUXRAM_ADRCFG_RX_OFFSET NI_HV_XRAM_BASE +#define NI_HV_XRAM_CPUXRAM_ADRCFG_TX_0_OFFSET (0x4 + NI_HV_XRAM_BASE) +#define NI_HV_XRAM_CPUXRAM_CFG_OFFSET (0x8 + NI_HV_XRAM_BASE) +#define NI_HV_XRAM_CPUXRAM_CPU_CFG_RX_0_OFFSET (0xc + NI_HV_XRAM_BASE) +#define NI_HV_XRAM_CPUXRAM_CPU_STA_RX_0_OFFSET (0x10 + NI_HV_XRAM_BASE) +#define NI_HV_XRAM_CPUXRAM_CPU_CFG_TX_0_OFFSET (0x24 + NI_HV_XRAM_BASE) +#define NI_HV_XRAM_CPUXRAM_CPU_STAT_TX_0_OFFSET (0x28 + NI_HV_XRAM_BASE) + +#define PER_MDIO_CFG_OFFSET 0x00 +#define PER_MDIO_ADDR_OFFSET 0x04 +#define PER_MDIO_WRDATA_OFFSET 0x08 +#define PER_MDIO_RDDATA_OFFSET 0x0C +#define PER_MDIO_CTRL_OFFSET 0x10 + +#define APB0_NI_HV_PT_STRIDE 160 + +#endif /* __CORTINA_NI_H */