diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/davinci_emac.c | 1 | ||||
| -rw-r--r-- | drivers/net/fec_mxc.c | 8 | ||||
| -rw-r--r-- | drivers/net/keystone_net.c | 416 | ||||
| -rw-r--r-- | drivers/net/mvgbe.c | 2 | ||||
| -rw-r--r-- | drivers/net/mvneta.c | 1653 | ||||
| -rw-r--r-- | drivers/net/phy/phy.c | 9 |
7 files changed, 1813 insertions, 277 deletions
diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 2c4dd7c..fb0cf8c 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -41,6 +41,7 @@ obj-$(CONFIG_MCFFEC) += mcffec.o mcfmii.o obj-$(CONFIG_MPC5xxx_FEC) += mpc5xxx_fec.o obj-$(CONFIG_MPC512x_FEC) += mpc512x_fec.o obj-$(CONFIG_MVGBE) += mvgbe.o +obj-$(CONFIG_MVNETA) += mvneta.o obj-$(CONFIG_NATSEMI) += natsemi.o obj-$(CONFIG_DRIVER_NE2000) += ne2000.o ne2000_base.o obj-$(CONFIG_DRIVER_AX88796L) += ax88796.o ne2000_base.o diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c index 439f8ae..08bc1af 100644 --- a/drivers/net/davinci_emac.c +++ b/drivers/net/davinci_emac.c @@ -27,6 +27,7 @@ #include <net.h> #include <miiphy.h> #include <malloc.h> +#include <netdev.h> #include <linux/compiler.h> #include <asm/arch/emac_defs.h> #include <asm/io.h> diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index 549d648..b572470 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -11,6 +11,7 @@ #include <common.h> #include <malloc.h> #include <net.h> +#include <netdev.h> #include <miiphy.h> #include "fec_mxc.h" @@ -179,13 +180,14 @@ static int fec_mdio_write(struct ethernet_regs *eth, uint8_t phyAddr, return 0; } -int fec_phy_read(struct mii_dev *bus, int phyAddr, int dev_addr, int regAddr) +static int fec_phy_read(struct mii_dev *bus, int phyAddr, int dev_addr, + int regAddr) { return fec_mdio_read(bus->priv, phyAddr, regAddr); } -int fec_phy_write(struct mii_dev *bus, int phyAddr, int dev_addr, int regAddr, - u16 data) +static int fec_phy_write(struct mii_dev *bus, int phyAddr, int dev_addr, + int regAddr, u16 data) { return fec_mdio_write(bus->priv, phyAddr, regAddr, data); } diff --git a/drivers/net/keystone_net.c b/drivers/net/keystone_net.c index d22b722..c8681d0 100644 --- a/drivers/net/keystone_net.c +++ b/drivers/net/keystone_net.c @@ -10,15 +10,16 @@ #include <command.h> #include <net.h> +#include <phy.h> +#include <errno.h> #include <miiphy.h> #include <malloc.h> -#include <asm/arch/emac_defs.h> -#include <asm/arch/psc_defs.h> -#include <asm/arch/keystone_nav.h> - -unsigned int emac_dbg; +#include <asm/ti-common/keystone_nav.h> +#include <asm/ti-common/keystone_net.h> +#include <asm/ti-common/keystone_serdes.h> unsigned int emac_open; +static struct mii_dev *mdio_bus; static unsigned int sys_has_mdio = 1; #ifdef KEYSTONE2_EMAC_GIG_ENABLE @@ -30,6 +31,7 @@ static unsigned int sys_has_mdio = 1; #define RX_BUFF_NUMS 24 #define RX_BUFF_LEN 1520 #define MAX_SIZE_STREAM_BUFFER RX_BUFF_LEN +#define SGMII_ANEG_TIMEOUT 4000 static u8 rx_buffs[RX_BUFF_NUMS * RX_BUFF_LEN] __aligned(16); @@ -40,15 +42,7 @@ struct rx_buff_desc net_rx_buffs = { .rx_flow = 22, }; -static void keystone2_eth_mdio_enable(void); - -static int gen_get_link_speed(int phy_addr); - -/* EMAC Addresses */ -static volatile struct emac_regs *adap_emac = - (struct emac_regs *)EMAC_EMACSL_BASE_ADDR; -static volatile struct mdio_regs *adap_mdio = - (struct mdio_regs *)EMAC_MDIO_BASE_ADDR; +static void keystone2_net_serdes_setup(void); int keystone2_eth_read_mac_addr(struct eth_device *dev) { @@ -74,64 +68,67 @@ int keystone2_eth_read_mac_addr(struct eth_device *dev) return 0; } -static void keystone2_eth_mdio_enable(void) +/* MDIO */ + +static int keystone2_mdio_reset(struct mii_dev *bus) { - u_int32_t clkdiv; + u_int32_t clkdiv; + struct mdio_regs *adap_mdio = bus->priv; clkdiv = (EMAC_MDIO_BUS_FREQ / EMAC_MDIO_CLOCK_FREQ) - 1; - writel((clkdiv & 0xffff) | - MDIO_CONTROL_ENABLE | - MDIO_CONTROL_FAULT | - MDIO_CONTROL_FAULT_ENABLE, + writel((clkdiv & 0xffff) | MDIO_CONTROL_ENABLE | + MDIO_CONTROL_FAULT | MDIO_CONTROL_FAULT_ENABLE, &adap_mdio->control); while (readl(&adap_mdio->control) & MDIO_CONTROL_IDLE) ; + + return 0; } -/* Read a PHY register via MDIO inteface. Returns 1 on success, 0 otherwise */ -int keystone2_eth_phy_read(u_int8_t phy_addr, u_int8_t reg_num, u_int16_t *data) +/** + * keystone2_mdio_read - read a PHY register via MDIO interface. + * Blocks until operation is complete. + */ +static int keystone2_mdio_read(struct mii_dev *bus, + int addr, int devad, int reg) { - int tmp; + int tmp; + struct mdio_regs *adap_mdio = bus->priv; while (readl(&adap_mdio->useraccess0) & MDIO_USERACCESS0_GO) ; - writel(MDIO_USERACCESS0_GO | - MDIO_USERACCESS0_WRITE_READ | - ((reg_num & 0x1f) << 21) | - ((phy_addr & 0x1f) << 16), + writel(MDIO_USERACCESS0_GO | MDIO_USERACCESS0_WRITE_READ | + ((reg & 0x1f) << 21) | ((addr & 0x1f) << 16), &adap_mdio->useraccess0); /* Wait for command to complete */ while ((tmp = readl(&adap_mdio->useraccess0)) & MDIO_USERACCESS0_GO) ; - if (tmp & MDIO_USERACCESS0_ACK) { - *data = tmp & 0xffff; - return 0; - } + if (tmp & MDIO_USERACCESS0_ACK) + return tmp & 0xffff; - *data = -1; return -1; } -/* - * Write to a PHY register via MDIO inteface. +/** + * keystone2_mdio_write - write to a PHY register via MDIO interface. * Blocks until operation is complete. */ -int keystone2_eth_phy_write(u_int8_t phy_addr, u_int8_t reg_num, u_int16_t data) +static int keystone2_mdio_write(struct mii_dev *bus, + int addr, int devad, int reg, u16 val) { + struct mdio_regs *adap_mdio = bus->priv; + while (readl(&adap_mdio->useraccess0) & MDIO_USERACCESS0_GO) ; - writel(MDIO_USERACCESS0_GO | - MDIO_USERACCESS0_WRITE_WRITE | - ((reg_num & 0x1f) << 21) | - ((phy_addr & 0x1f) << 16) | - (data & 0xffff), - &adap_mdio->useraccess0); + writel(MDIO_USERACCESS0_GO | MDIO_USERACCESS0_WRITE_WRITE | + ((reg & 0x1f) << 21) | ((addr & 0x1f) << 16) | + (val & 0xffff), &adap_mdio->useraccess0); /* Wait for command to complete */ while (readl(&adap_mdio->useraccess0) & MDIO_USERACCESS0_GO) @@ -140,19 +137,6 @@ int keystone2_eth_phy_write(u_int8_t phy_addr, u_int8_t reg_num, u_int16_t data) return 0; } -/* PHY functions for a generic PHY */ -static int gen_get_link_speed(int phy_addr) -{ - u_int16_t tmp; - - if ((!keystone2_eth_phy_read(phy_addr, MII_STATUS_REG, &tmp)) && - (tmp & 0x04)) { - return 0; - } - - return -1; -} - static void __attribute__((unused)) keystone2_eth_gigabit_enable(struct eth_device *dev) { @@ -160,8 +144,10 @@ static void __attribute__((unused)) struct eth_priv_t *eth_priv = (struct eth_priv_t *)dev->priv; if (sys_has_mdio) { - if (keystone2_eth_phy_read(eth_priv->phy_addr, 0, &data) || - !(data & (1 << 6))) /* speed selection MSB */ + data = keystone2_mdio_read(mdio_bus, eth_priv->phy_addr, + MDIO_DEVAD_NONE, 0); + /* speed selection MSB */ + if (!(data & (1 << 6))) return; } @@ -169,10 +155,10 @@ static void __attribute__((unused)) * Check if link detected is giga-bit * If Gigabit mode detected, enable gigbit in MAC */ - writel(readl(&(adap_emac[eth_priv->slave_port - 1].maccontrol)) | + writel(readl(DEVICE_EMACSL_BASE(eth_priv->slave_port - 1) + + CPGMACSL_REG_CTL) | EMAC_MACCONTROL_GIGFORCE | EMAC_MACCONTROL_GIGABIT_ENABLE, - &(adap_emac[eth_priv->slave_port - 1].maccontrol)) - ; + DEVICE_EMACSL_BASE(eth_priv->slave_port - 1) + CPGMACSL_REG_CTL); } int keystone_sgmii_link_status(int port) @@ -181,38 +167,11 @@ int keystone_sgmii_link_status(int port) status = __raw_readl(SGMII_STATUS_REG(port)); - return status & SGMII_REG_STATUS_LINK; + return (status & SGMII_REG_STATUS_LOCK) && + (status & SGMII_REG_STATUS_LINK); } - -int keystone_get_link_status(struct eth_device *dev) -{ - struct eth_priv_t *eth_priv = (struct eth_priv_t *)dev->priv; - int sgmii_link; - int link_state = 0; -#if CONFIG_GET_LINK_STATUS_ATTEMPTS > 1 - int j; - - for (j = 0; (j < CONFIG_GET_LINK_STATUS_ATTEMPTS) && (link_state == 0); - j++) { -#endif - sgmii_link = - keystone_sgmii_link_status(eth_priv->slave_port - 1); - - if (sgmii_link) { - link_state = 1; - - if (eth_priv->sgmii_link_type == SGMII_LINK_MAC_PHY) - if (gen_get_link_speed(eth_priv->phy_addr)) - link_state = 0; - } -#if CONFIG_GET_LINK_STATUS_ATTEMPTS > 1 - } -#endif - return link_state; -} - -int keystone_sgmii_config(int port, int interface) +int keystone_sgmii_config(struct phy_device *phy_dev, int port, int interface) { unsigned int i, status, mask; unsigned int mr_adv_ability, control; @@ -273,11 +232,35 @@ int keystone_sgmii_config(int port, int interface) if (control & SGMII_REG_CONTROL_AUTONEG) mask |= SGMII_REG_STATUS_AUTONEG; - for (i = 0; i < 1000; i++) { + status = __raw_readl(SGMII_STATUS_REG(port)); + if ((status & mask) == mask) + return 0; + + printf("\n%s Waiting for SGMII auto negotiation to complete", + phy_dev->dev->name); + while ((status & mask) != mask) { + /* + * Timeout reached ? + */ + if (i > SGMII_ANEG_TIMEOUT) { + puts(" TIMEOUT !\n"); + phy_dev->link = 0; + return 0; + } + + if (ctrlc()) { + puts("user interrupt!\n"); + phy_dev->link = 0; + return -EINTR; + } + + if ((i++ % 500) == 0) + printf("."); + + udelay(1000); /* 1 ms */ status = __raw_readl(SGMII_STATUS_REG(port)); - if ((status & mask) == mask) - break; } + puts(" done\n"); return 0; } @@ -332,6 +315,11 @@ int mac_sl_config(u_int16_t port, struct mac_sl_cfg *cfg) writel(cfg->max_rx_len, DEVICE_EMACSL_BASE(port) + CPGMACSL_REG_MAXLEN); writel(cfg->ctl, DEVICE_EMACSL_BASE(port) + CPGMACSL_REG_CTL); +#ifdef CONFIG_K2E_EVM + /* Map RX packet flow priority to 0 */ + writel(0, DEVICE_EMACSL_BASE(port) + CPGMACSL_REG_RX_PRI_MAP); +#endif + return ret; } @@ -393,15 +381,15 @@ int32_t cpmac_drv_send(u32 *buffer, int num_bytes, int slave_port_num) if (num_bytes < EMAC_MIN_ETHERNET_PKT_SIZE) num_bytes = EMAC_MIN_ETHERNET_PKT_SIZE; - return netcp_send(buffer, num_bytes, (slave_port_num) << 16); + return ksnav_send(&netcp_pktdma, buffer, + num_bytes, (slave_port_num) << 16); } /* Eth device open */ static int keystone2_eth_open(struct eth_device *dev, bd_t *bis) { - u_int32_t clkdiv; - int link; struct eth_priv_t *eth_priv = (struct eth_priv_t *)dev->priv; + struct phy_device *phy_dev = eth_priv->phy_dev; debug("+ emac_open\n"); @@ -410,15 +398,9 @@ static int keystone2_eth_open(struct eth_device *dev, bd_t *bis) sys_has_mdio = (eth_priv->sgmii_link_type == SGMII_LINK_MAC_PHY) ? 1 : 0; - psc_enable_module(KS2_LPSC_PA); - psc_enable_module(KS2_LPSC_CPGMAC); - - sgmii_serdes_setup_156p25mhz(); - - if (sys_has_mdio) - keystone2_eth_mdio_enable(); + keystone2_net_serdes_setup(); - keystone_sgmii_config(eth_priv->slave_port - 1, + keystone_sgmii_config(phy_dev, eth_priv->slave_port - 1, eth_priv->sgmii_link_type); udelay(10000); @@ -431,7 +413,7 @@ static int keystone2_eth_open(struct eth_device *dev, bd_t *bis) printf("ERROR: qm_init()\n"); return -1; } - if (netcp_init(&net_rx_buffs)) { + if (ksnav_init(&netcp_pktdma, &net_rx_buffs)) { qm_close(); printf("ERROR: netcp_init()\n"); return -1; @@ -445,18 +427,11 @@ static int keystone2_eth_open(struct eth_device *dev, bd_t *bis) hw_config_streaming_switch(); if (sys_has_mdio) { - /* Init MDIO & get link state */ - clkdiv = (EMAC_MDIO_BUS_FREQ / EMAC_MDIO_CLOCK_FREQ) - 1; - writel((clkdiv & 0xff) | MDIO_CONTROL_ENABLE | - MDIO_CONTROL_FAULT, &adap_mdio->control) - ; - - /* We need to wait for MDIO to start */ - udelay(1000); - - link = keystone_get_link_status(dev); - if (link == 0) { - netcp_close(); + keystone2_mdio_reset(mdio_bus); + + phy_startup(phy_dev); + if (phy_dev->link == 0) { + ksnav_close(&netcp_pktdma); qm_close(); return -1; } @@ -476,6 +451,9 @@ static int keystone2_eth_open(struct eth_device *dev, bd_t *bis) /* Eth device close */ void keystone2_eth_close(struct eth_device *dev) { + struct eth_priv_t *eth_priv = (struct eth_priv_t *)dev->priv; + struct phy_device *phy_dev = eth_priv->phy_dev; + debug("+ emac_close\n"); if (!emac_open) @@ -483,16 +461,15 @@ void keystone2_eth_close(struct eth_device *dev) ethss_stop(); - netcp_close(); + ksnav_close(&netcp_pktdma); qm_close(); + phy_shutdown(phy_dev); emac_open = 0; debug("- emac_close\n"); } -static int tx_send_loop; - /* * This function sends a single packet on the network and returns * positive number (number of bytes transmitted) or negative for error @@ -502,22 +479,15 @@ static int keystone2_eth_send_packet(struct eth_device *dev, { int ret_status = -1; struct eth_priv_t *eth_priv = (struct eth_priv_t *)dev->priv; + struct phy_device *phy_dev = eth_priv->phy_dev; - tx_send_loop = 0; - - if (keystone_get_link_status(dev) == 0) + genphy_update_link(phy_dev); + if (phy_dev->link == 0) return -1; - emac_gigabit_enable(dev); - if (cpmac_drv_send((u32 *)packet, length, eth_priv->slave_port) != 0) return ret_status; - if (keystone_get_link_status(dev) == 0) - return -1; - - emac_gigabit_enable(dev); - return length; } @@ -530,13 +500,13 @@ static int keystone2_eth_rcv_packet(struct eth_device *dev) int pkt_size; u32 *pkt; - hd = netcp_recv(&pkt, &pkt_size); + hd = ksnav_recv(&netcp_pktdma, &pkt, &pkt_size); if (hd == NULL) return 0; NetReceive((uchar *)pkt, pkt_size); - netcp_release_rxhd(hd); + ksnav_release_rxhd(&netcp_pktdma, hd); return pkt_size; } @@ -546,7 +516,9 @@ static int keystone2_eth_rcv_packet(struct eth_device *dev) */ int keystone2_emac_initialize(struct eth_priv_t *eth_priv) { + int res; struct eth_device *dev; + struct phy_device *phy_dev; dev = malloc(sizeof(struct eth_device)); if (dev == NULL) @@ -567,145 +539,55 @@ int keystone2_emac_initialize(struct eth_priv_t *eth_priv) eth_register(dev); - return 0; -} - -void sgmii_serdes_setup_156p25mhz(void) -{ - unsigned int cnt; - - /* - * configure Serializer/Deserializer (SerDes) hardware. SerDes IP - * hardware vendor published only register addresses and their values - * to be used for configuring SerDes. So had to use hardcoded values - * below. - */ - clrsetbits_le32(0x0232a000, 0xffff0000, 0x00800000); - clrsetbits_le32(0x0232a014, 0x0000ffff, 0x00008282); - clrsetbits_le32(0x0232a060, 0x00ffffff, 0x00142438); - clrsetbits_le32(0x0232a064, 0x00ffff00, 0x00c3c700); - clrsetbits_le32(0x0232a078, 0x0000ff00, 0x0000c000); - - clrsetbits_le32(0x0232a204, 0xff0000ff, 0x38000080); - clrsetbits_le32(0x0232a208, 0x000000ff, 0x00000000); - clrsetbits_le32(0x0232a20c, 0xff000000, 0x02000000); - clrsetbits_le32(0x0232a210, 0xff000000, 0x1b000000); - clrsetbits_le32(0x0232a214, 0x0000ffff, 0x00006fb8); - clrsetbits_le32(0x0232a218, 0xffff00ff, 0x758000e4); - clrsetbits_le32(0x0232a2ac, 0x0000ff00, 0x00004400); - clrsetbits_le32(0x0232a22c, 0x00ffff00, 0x00200800); - clrsetbits_le32(0x0232a280, 0x00ff00ff, 0x00820082); - clrsetbits_le32(0x0232a284, 0xffffffff, 0x1d0f0385); - - clrsetbits_le32(0x0232a404, 0xff0000ff, 0x38000080); - clrsetbits_le32(0x0232a408, 0x000000ff, 0x00000000); - clrsetbits_le32(0x0232a40c, 0xff000000, 0x02000000); - clrsetbits_le32(0x0232a410, 0xff000000, 0x1b000000); - clrsetbits_le32(0x0232a414, 0x0000ffff, 0x00006fb8); - clrsetbits_le32(0x0232a418, 0xffff00ff, 0x758000e4); - clrsetbits_le32(0x0232a4ac, 0x0000ff00, 0x00004400); - clrsetbits_le32(0x0232a42c, 0x00ffff00, 0x00200800); - clrsetbits_le32(0x0232a480, 0x00ff00ff, 0x00820082); - clrsetbits_le32(0x0232a484, 0xffffffff, 0x1d0f0385); - - clrsetbits_le32(0x0232a604, 0xff0000ff, 0x38000080); - clrsetbits_le32(0x0232a608, 0x000000ff, 0x00000000); - clrsetbits_le32(0x0232a60c, 0xff000000, 0x02000000); - clrsetbits_le32(0x0232a610, 0xff000000, 0x1b000000); - clrsetbits_le32(0x0232a614, 0x0000ffff, 0x00006fb8); - clrsetbits_le32(0x0232a618, 0xffff00ff, 0x758000e4); - clrsetbits_le32(0x0232a6ac, 0x0000ff00, 0x00004400); - clrsetbits_le32(0x0232a62c, 0x00ffff00, 0x00200800); - clrsetbits_le32(0x0232a680, 0x00ff00ff, 0x00820082); - clrsetbits_le32(0x0232a684, 0xffffffff, 0x1d0f0385); - - clrsetbits_le32(0x0232a804, 0xff0000ff, 0x38000080); - clrsetbits_le32(0x0232a808, 0x000000ff, 0x00000000); - clrsetbits_le32(0x0232a80c, 0xff000000, 0x02000000); - clrsetbits_le32(0x0232a810, 0xff000000, 0x1b000000); - clrsetbits_le32(0x0232a814, 0x0000ffff, 0x00006fb8); - clrsetbits_le32(0x0232a818, 0xffff00ff, 0x758000e4); - clrsetbits_le32(0x0232a8ac, 0x0000ff00, 0x00004400); - clrsetbits_le32(0x0232a82c, 0x00ffff00, 0x00200800); - clrsetbits_le32(0x0232a880, 0x00ff00ff, 0x00820082); - clrsetbits_le32(0x0232a884, 0xffffffff, 0x1d0f0385); - - clrsetbits_le32(0x0232aa00, 0x0000ff00, 0x00000800); - clrsetbits_le32(0x0232aa08, 0xffff0000, 0x38a20000); - clrsetbits_le32(0x0232aa30, 0x00ffff00, 0x008a8a00); - clrsetbits_le32(0x0232aa84, 0x0000ff00, 0x00000600); - clrsetbits_le32(0x0232aa94, 0xff000000, 0x10000000); - clrsetbits_le32(0x0232aaa0, 0xff000000, 0x81000000); - clrsetbits_le32(0x0232aabc, 0xff000000, 0xff000000); - clrsetbits_le32(0x0232aac0, 0x000000ff, 0x0000008b); - clrsetbits_le32(0x0232ab08, 0xffff0000, 0x583f0000); - clrsetbits_le32(0x0232ab0c, 0x000000ff, 0x0000004e); - clrsetbits_le32(0x0232a000, 0x000000ff, 0x00000003); - clrsetbits_le32(0x0232aa00, 0x000000ff, 0x0000005f); - - clrsetbits_le32(0x0232aa48, 0x00ffff00, 0x00fd8c00); - clrsetbits_le32(0x0232aa54, 0x00ffffff, 0x002fec72); - clrsetbits_le32(0x0232aa58, 0xffffff00, 0x00f92100); - clrsetbits_le32(0x0232aa5c, 0xffffffff, 0x00040060); - clrsetbits_le32(0x0232aa60, 0xffffffff, 0x00008000); - clrsetbits_le32(0x0232aa64, 0xffffffff, 0x0c581220); - clrsetbits_le32(0x0232aa68, 0xffffffff, 0xe13b0602); - clrsetbits_le32(0x0232aa6c, 0xffffffff, 0xb8074cc1); - clrsetbits_le32(0x0232aa70, 0xffffffff, 0x3f02e989); - clrsetbits_le32(0x0232aa74, 0x000000ff, 0x00000001); - clrsetbits_le32(0x0232ab20, 0x00ff0000, 0x00370000); - clrsetbits_le32(0x0232ab1c, 0xff000000, 0x37000000); - clrsetbits_le32(0x0232ab20, 0x000000ff, 0x0000005d); - - /*Bring SerDes out of Reset if SerDes is Shutdown & is in Reset Mode*/ - clrbits_le32(0x0232a010, 1 << 28); - - /* Enable TX and RX via the LANExCTL_STS 0x0000 + x*4 */ - clrbits_le32(0x0232a228, 1 << 29); - writel(0xF800F8C0, 0x0232bfe0); - clrbits_le32(0x0232a428, 1 << 29); - writel(0xF800F8C0, 0x0232bfe4); - clrbits_le32(0x0232a628, 1 << 29); - writel(0xF800F8C0, 0x0232bfe8); - clrbits_le32(0x0232a828, 1 << 29); - writel(0xF800F8C0, 0x0232bfec); - - /*Enable pll via the pll_ctrl 0x0014*/ - writel(0xe0000000, 0x0232bff4) - ; - - /*Waiting for SGMII Serdes PLL lock.*/ - for (cnt = 10000; cnt > 0 && ((readl(0x02090114) & 0x10) == 0); cnt--) - ; - - for (cnt = 10000; cnt > 0 && ((readl(0x02090214) & 0x10) == 0); cnt--) - ; - - for (cnt = 10000; cnt > 0 && ((readl(0x02090414) & 0x10) == 0); cnt--) - ; + /* Register MDIO bus if it's not registered yet */ + if (!mdio_bus) { + mdio_bus = mdio_alloc(); + mdio_bus->read = keystone2_mdio_read; + mdio_bus->write = keystone2_mdio_write; + mdio_bus->reset = keystone2_mdio_reset; + mdio_bus->priv = (void *)EMAC_MDIO_BASE_ADDR; + sprintf(mdio_bus->name, "ethernet-mdio"); + + res = mdio_register(mdio_bus); + if (res) + return res; + } - for (cnt = 10000; cnt > 0 && ((readl(0x02090514) & 0x10) == 0); cnt--) - ; + /* Create phy device and bind it with driver */ +#ifdef CONFIG_KSNET_MDIO_PHY_CONFIG_ENABLE + phy_dev = phy_connect(mdio_bus, eth_priv->phy_addr, + dev, PHY_INTERFACE_MODE_SGMII); + phy_config(phy_dev); +#else + phy_dev = phy_find_by_mask(mdio_bus, 1 << eth_priv->phy_addr, + PHY_INTERFACE_MODE_SGMII); + phy_dev->dev = dev; +#endif + eth_priv->phy_dev = phy_dev; - udelay(45000); + return 0; } -void sgmii_serdes_shutdown(void) +struct ks2_serdes ks2_serdes_sgmii_156p25mhz = { + .clk = SERDES_CLOCK_156P25M, + .rate = SERDES_RATE_5G, + .rate_mode = SERDES_QUARTER_RATE, + .intf = SERDES_PHY_SGMII, + .loopback = 0, +}; + +static void keystone2_net_serdes_setup(void) { - /* - * shutdown SerDes hardware. SerDes hardware vendor published only - * register addresses and their values. So had to use hardcoded - * values below. - */ - clrbits_le32(0x0232bfe0, 3 << 29 | 3 << 13); - setbits_le32(0x02320228, 1 << 29); - clrbits_le32(0x0232bfe4, 3 << 29 | 3 << 13); - setbits_le32(0x02320428, 1 << 29); - clrbits_le32(0x0232bfe8, 3 << 29 | 3 << 13); - setbits_le32(0x02320628, 1 << 29); - clrbits_le32(0x0232bfec, 3 << 29 | 3 << 13); - setbits_le32(0x02320828, 1 << 29); - - clrbits_le32(0x02320034, 3 << 29); - setbits_le32(0x02320010, 1 << 28); + ks2_serdes_init(CONFIG_KSNET_SERDES_SGMII_BASE, + &ks2_serdes_sgmii_156p25mhz, + CONFIG_KSNET_SERDES_LANES_PER_SGMII); + +#ifdef CONFIG_SOC_K2E + ks2_serdes_init(CONFIG_KSNET_SERDES_SGMII2_BASE, + &ks2_serdes_sgmii_156p25mhz, + CONFIG_KSNET_SERDES_LANES_PER_SGMII); +#endif + + /* wait till setup */ + udelay(5000); } diff --git a/drivers/net/mvgbe.c b/drivers/net/mvgbe.c index 0cd06b6..6ef6cac 100644 --- a/drivers/net/mvgbe.c +++ b/drivers/net/mvgbe.c @@ -24,7 +24,7 @@ #include <asm/arch/cpu.h> #if defined(CONFIG_KIRKWOOD) -#include <asm/arch/kirkwood.h> +#include <asm/arch/soc.h> #elif defined(CONFIG_ORION5X) #include <asm/arch/orion5x.h> #elif defined(CONFIG_DOVE) diff --git a/drivers/net/mvneta.c b/drivers/net/mvneta.c new file mode 100644 index 0000000..a2a69b4 --- /dev/null +++ b/drivers/net/mvneta.c @@ -0,0 +1,1653 @@ +/* + * Driver for Marvell NETA network card for Armada XP and Armada 370 SoCs. + * + * U-Boot version: + * Copyright (C) 2014 Stefan Roese <sr@denx.de> + * + * Based on the Linux version which is: + * Copyright (C) 2012 Marvell + * + * Rami Rosen <rosenr@marvell.com> + * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#include <common.h> +#include <net.h> +#include <netdev.h> +#include <config.h> +#include <malloc.h> +#include <asm/io.h> +#include <asm/errno.h> +#include <phy.h> +#include <miiphy.h> +#include <watchdog.h> +#include <asm/arch/cpu.h> +#include <asm/arch/soc.h> +#include <linux/compat.h> +#include <linux/mbus.h> + +#if !defined(CONFIG_PHYLIB) +# error Marvell mvneta requires PHYLIB +#endif + +/* Some linux -> U-Boot compatibility stuff */ +#define netdev_err(dev, fmt, args...) \ + printf(fmt, ##args) +#define netdev_warn(dev, fmt, args...) \ + printf(fmt, ##args) +#define netdev_info(dev, fmt, args...) \ + printf(fmt, ##args) + +#define CONFIG_NR_CPUS 1 +#define BIT(nr) (1UL << (nr)) +#define ETH_HLEN 14 /* Total octets in header */ + +/* 2(HW hdr) 14(MAC hdr) 4(CRC) 32(extra for cache prefetch) */ +#define WRAP (2 + ETH_HLEN + 4 + 32) +#define MTU 1500 +#define RX_BUFFER_SIZE (ALIGN(MTU + WRAP, ARCH_DMA_MINALIGN)) + +#define MVNETA_SMI_TIMEOUT 10000 + +/* Registers */ +#define MVNETA_RXQ_CONFIG_REG(q) (0x1400 + ((q) << 2)) +#define MVNETA_RXQ_HW_BUF_ALLOC BIT(1) +#define MVNETA_RXQ_PKT_OFFSET_ALL_MASK (0xf << 8) +#define MVNETA_RXQ_PKT_OFFSET_MASK(offs) ((offs) << 8) +#define MVNETA_RXQ_THRESHOLD_REG(q) (0x14c0 + ((q) << 2)) +#define MVNETA_RXQ_NON_OCCUPIED(v) ((v) << 16) +#define MVNETA_RXQ_BASE_ADDR_REG(q) (0x1480 + ((q) << 2)) +#define MVNETA_RXQ_SIZE_REG(q) (0x14a0 + ((q) << 2)) +#define MVNETA_RXQ_BUF_SIZE_SHIFT 19 +#define MVNETA_RXQ_BUF_SIZE_MASK (0x1fff << 19) +#define MVNETA_RXQ_STATUS_REG(q) (0x14e0 + ((q) << 2)) +#define MVNETA_RXQ_OCCUPIED_ALL_MASK 0x3fff +#define MVNETA_RXQ_STATUS_UPDATE_REG(q) (0x1500 + ((q) << 2)) +#define MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT 16 +#define MVNETA_RXQ_ADD_NON_OCCUPIED_MAX 255 +#define MVNETA_PORT_RX_RESET 0x1cc0 +#define MVNETA_PORT_RX_DMA_RESET BIT(0) +#define MVNETA_PHY_ADDR 0x2000 +#define MVNETA_PHY_ADDR_MASK 0x1f +#define MVNETA_SMI 0x2004 +#define MVNETA_PHY_REG_MASK 0x1f +/* SMI register fields */ +#define MVNETA_SMI_DATA_OFFS 0 /* Data */ +#define MVNETA_SMI_DATA_MASK (0xffff << MVNETA_SMI_DATA_OFFS) +#define MVNETA_SMI_DEV_ADDR_OFFS 16 /* PHY device address */ +#define MVNETA_SMI_REG_ADDR_OFFS 21 /* PHY device reg addr*/ +#define MVNETA_SMI_OPCODE_OFFS 26 /* Write/Read opcode */ +#define MVNETA_SMI_OPCODE_READ (1 << MVNETA_SMI_OPCODE_OFFS) +#define MVNETA_SMI_READ_VALID (1 << 27) /* Read Valid */ +#define MVNETA_SMI_BUSY (1 << 28) /* Busy */ +#define MVNETA_MBUS_RETRY 0x2010 +#define MVNETA_UNIT_INTR_CAUSE 0x2080 +#define MVNETA_UNIT_CONTROL 0x20B0 +#define MVNETA_PHY_POLLING_ENABLE BIT(1) +#define MVNETA_WIN_BASE(w) (0x2200 + ((w) << 3)) +#define MVNETA_WIN_SIZE(w) (0x2204 + ((w) << 3)) +#define MVNETA_WIN_REMAP(w) (0x2280 + ((w) << 2)) +#define MVNETA_BASE_ADDR_ENABLE 0x2290 +#define MVNETA_PORT_CONFIG 0x2400 +#define MVNETA_UNI_PROMISC_MODE BIT(0) +#define MVNETA_DEF_RXQ(q) ((q) << 1) +#define MVNETA_DEF_RXQ_ARP(q) ((q) << 4) +#define MVNETA_TX_UNSET_ERR_SUM BIT(12) +#define MVNETA_DEF_RXQ_TCP(q) ((q) << 16) +#define MVNETA_DEF_RXQ_UDP(q) ((q) << 19) +#define MVNETA_DEF_RXQ_BPDU(q) ((q) << 22) +#define MVNETA_RX_CSUM_WITH_PSEUDO_HDR BIT(25) +#define MVNETA_PORT_CONFIG_DEFL_VALUE(q) (MVNETA_DEF_RXQ(q) | \ + MVNETA_DEF_RXQ_ARP(q) | \ + MVNETA_DEF_RXQ_TCP(q) | \ + MVNETA_DEF_RXQ_UDP(q) | \ + MVNETA_DEF_RXQ_BPDU(q) | \ + MVNETA_TX_UNSET_ERR_SUM | \ + MVNETA_RX_CSUM_WITH_PSEUDO_HDR) +#define MVNETA_PORT_CONFIG_EXTEND 0x2404 +#define MVNETA_MAC_ADDR_LOW 0x2414 +#define MVNETA_MAC_ADDR_HIGH 0x2418 +#define MVNETA_SDMA_CONFIG 0x241c +#define MVNETA_SDMA_BRST_SIZE_16 4 +#define MVNETA_RX_BRST_SZ_MASK(burst) ((burst) << 1) +#define MVNETA_RX_NO_DATA_SWAP BIT(4) +#define MVNETA_TX_NO_DATA_SWAP BIT(5) +#define MVNETA_DESC_SWAP BIT(6) +#define MVNETA_TX_BRST_SZ_MASK(burst) ((burst) << 22) +#define MVNETA_PORT_STATUS 0x2444 +#define MVNETA_TX_IN_PRGRS BIT(1) +#define MVNETA_TX_FIFO_EMPTY BIT(8) +#define MVNETA_RX_MIN_FRAME_SIZE 0x247c +#define MVNETA_SERDES_CFG 0x24A0 +#define MVNETA_SGMII_SERDES_PROTO 0x0cc7 +#define MVNETA_QSGMII_SERDES_PROTO 0x0667 +#define MVNETA_TYPE_PRIO 0x24bc +#define MVNETA_FORCE_UNI BIT(21) +#define MVNETA_TXQ_CMD_1 0x24e4 +#define MVNETA_TXQ_CMD 0x2448 +#define MVNETA_TXQ_DISABLE_SHIFT 8 +#define MVNETA_TXQ_ENABLE_MASK 0x000000ff +#define MVNETA_ACC_MODE 0x2500 +#define MVNETA_CPU_MAP(cpu) (0x2540 + ((cpu) << 2)) +#define MVNETA_CPU_RXQ_ACCESS_ALL_MASK 0x000000ff +#define MVNETA_CPU_TXQ_ACCESS_ALL_MASK 0x0000ff00 +#define MVNETA_RXQ_TIME_COAL_REG(q) (0x2580 + ((q) << 2)) + +/* Exception Interrupt Port/Queue Cause register */ + +#define MVNETA_INTR_NEW_CAUSE 0x25a0 +#define MVNETA_INTR_NEW_MASK 0x25a4 + +/* bits 0..7 = TXQ SENT, one bit per queue. + * bits 8..15 = RXQ OCCUP, one bit per queue. + * bits 16..23 = RXQ FREE, one bit per queue. + * bit 29 = OLD_REG_SUM, see old reg ? + * bit 30 = TX_ERR_SUM, one bit for 4 ports + * bit 31 = MISC_SUM, one bit for 4 ports + */ +#define MVNETA_TX_INTR_MASK(nr_txqs) (((1 << nr_txqs) - 1) << 0) +#define MVNETA_TX_INTR_MASK_ALL (0xff << 0) +#define MVNETA_RX_INTR_MASK(nr_rxqs) (((1 << nr_rxqs) - 1) << 8) +#define MVNETA_RX_INTR_MASK_ALL (0xff << 8) + +#define MVNETA_INTR_OLD_CAUSE 0x25a8 +#define MVNETA_INTR_OLD_MASK 0x25ac + +/* Data Path Port/Queue Cause Register */ +#define MVNETA_INTR_MISC_CAUSE 0x25b0 +#define MVNETA_INTR_MISC_MASK 0x25b4 +#define MVNETA_INTR_ENABLE 0x25b8 + +#define MVNETA_RXQ_CMD 0x2680 +#define MVNETA_RXQ_DISABLE_SHIFT 8 +#define MVNETA_RXQ_ENABLE_MASK 0x000000ff +#define MVETH_TXQ_TOKEN_COUNT_REG(q) (0x2700 + ((q) << 4)) +#define MVETH_TXQ_TOKEN_CFG_REG(q) (0x2704 + ((q) << 4)) +#define MVNETA_GMAC_CTRL_0 0x2c00 +#define MVNETA_GMAC_MAX_RX_SIZE_SHIFT 2 +#define MVNETA_GMAC_MAX_RX_SIZE_MASK 0x7ffc +#define MVNETA_GMAC0_PORT_ENABLE BIT(0) +#define MVNETA_GMAC_CTRL_2 0x2c08 +#define MVNETA_GMAC2_PCS_ENABLE BIT(3) +#define MVNETA_GMAC2_PORT_RGMII BIT(4) +#define MVNETA_GMAC2_PORT_RESET BIT(6) +#define MVNETA_GMAC_STATUS 0x2c10 +#define MVNETA_GMAC_LINK_UP BIT(0) +#define MVNETA_GMAC_SPEED_1000 BIT(1) +#define MVNETA_GMAC_SPEED_100 BIT(2) +#define MVNETA_GMAC_FULL_DUPLEX BIT(3) +#define MVNETA_GMAC_RX_FLOW_CTRL_ENABLE BIT(4) +#define MVNETA_GMAC_TX_FLOW_CTRL_ENABLE BIT(5) +#define MVNETA_GMAC_RX_FLOW_CTRL_ACTIVE BIT(6) +#define MVNETA_GMAC_TX_FLOW_CTRL_ACTIVE BIT(7) +#define MVNETA_GMAC_AUTONEG_CONFIG 0x2c0c +#define MVNETA_GMAC_FORCE_LINK_DOWN BIT(0) +#define MVNETA_GMAC_FORCE_LINK_PASS BIT(1) +#define MVNETA_GMAC_CONFIG_MII_SPEED BIT(5) +#define MVNETA_GMAC_CONFIG_GMII_SPEED BIT(6) +#define MVNETA_GMAC_AN_SPEED_EN BIT(7) +#define MVNETA_GMAC_CONFIG_FULL_DUPLEX BIT(12) +#define MVNETA_GMAC_AN_DUPLEX_EN BIT(13) +#define MVNETA_MIB_COUNTERS_BASE 0x3080 +#define MVNETA_MIB_LATE_COLLISION 0x7c +#define MVNETA_DA_FILT_SPEC_MCAST 0x3400 +#define MVNETA_DA_FILT_OTH_MCAST 0x3500 +#define MVNETA_DA_FILT_UCAST_BASE 0x3600 +#define MVNETA_TXQ_BASE_ADDR_REG(q) (0x3c00 + ((q) << 2)) +#define MVNETA_TXQ_SIZE_REG(q) (0x3c20 + ((q) << 2)) +#define MVNETA_TXQ_SENT_THRESH_ALL_MASK 0x3fff0000 +#define MVNETA_TXQ_SENT_THRESH_MASK(coal) ((coal) << 16) +#define MVNETA_TXQ_UPDATE_REG(q) (0x3c60 + ((q) << 2)) +#define MVNETA_TXQ_DEC_SENT_SHIFT 16 +#define MVNETA_TXQ_STATUS_REG(q) (0x3c40 + ((q) << 2)) +#define MVNETA_TXQ_SENT_DESC_SHIFT 16 +#define MVNETA_TXQ_SENT_DESC_MASK 0x3fff0000 +#define MVNETA_PORT_TX_RESET 0x3cf0 +#define MVNETA_PORT_TX_DMA_RESET BIT(0) +#define MVNETA_TX_MTU 0x3e0c +#define MVNETA_TX_TOKEN_SIZE 0x3e14 +#define MVNETA_TX_TOKEN_SIZE_MAX 0xffffffff +#define MVNETA_TXQ_TOKEN_SIZE_REG(q) (0x3e40 + ((q) << 2)) +#define MVNETA_TXQ_TOKEN_SIZE_MAX 0x7fffffff + +/* Descriptor ring Macros */ +#define MVNETA_QUEUE_NEXT_DESC(q, index) \ + (((index) < (q)->last_desc) ? ((index) + 1) : 0) + +/* Various constants */ + +/* Coalescing */ +#define MVNETA_TXDONE_COAL_PKTS 16 +#define MVNETA_RX_COAL_PKTS 32 +#define MVNETA_RX_COAL_USEC 100 + +/* The two bytes Marvell header. Either contains a special value used + * by Marvell switches when a specific hardware mode is enabled (not + * supported by this driver) or is filled automatically by zeroes on + * the RX side. Those two bytes being at the front of the Ethernet + * header, they allow to have the IP header aligned on a 4 bytes + * boundary automatically: the hardware skips those two bytes on its + * own. + */ +#define MVNETA_MH_SIZE 2 + +#define MVNETA_VLAN_TAG_LEN 4 + +#define MVNETA_CPU_D_CACHE_LINE_SIZE 32 +#define MVNETA_TX_CSUM_MAX_SIZE 9800 +#define MVNETA_ACC_MODE_EXT 1 + +/* Timeout constants */ +#define MVNETA_TX_DISABLE_TIMEOUT_MSEC 1000 +#define MVNETA_RX_DISABLE_TIMEOUT_MSEC 1000 +#define MVNETA_TX_FIFO_EMPTY_TIMEOUT 10000 + +#define MVNETA_TX_MTU_MAX 0x3ffff + +/* Max number of Rx descriptors */ +#define MVNETA_MAX_RXD 16 + +/* Max number of Tx descriptors */ +#define MVNETA_MAX_TXD 16 + +/* descriptor aligned size */ +#define MVNETA_DESC_ALIGNED_SIZE 32 + +struct mvneta_port { + void __iomem *base; + struct mvneta_rx_queue *rxqs; + struct mvneta_tx_queue *txqs; + + u8 mcast_count[256]; + u16 tx_ring_size; + u16 rx_ring_size; + + phy_interface_t phy_interface; + unsigned int link; + unsigned int duplex; + unsigned int speed; + + int init; + int phyaddr; + struct phy_device *phydev; + struct mii_dev *bus; +}; + +/* The mvneta_tx_desc and mvneta_rx_desc structures describe the + * layout of the transmit and reception DMA descriptors, and their + * layout is therefore defined by the hardware design + */ + +#define MVNETA_TX_L3_OFF_SHIFT 0 +#define MVNETA_TX_IP_HLEN_SHIFT 8 +#define MVNETA_TX_L4_UDP BIT(16) +#define MVNETA_TX_L3_IP6 BIT(17) +#define MVNETA_TXD_IP_CSUM BIT(18) +#define MVNETA_TXD_Z_PAD BIT(19) +#define MVNETA_TXD_L_DESC BIT(20) +#define MVNETA_TXD_F_DESC BIT(21) +#define MVNETA_TXD_FLZ_DESC (MVNETA_TXD_Z_PAD | \ + MVNETA_TXD_L_DESC | \ + MVNETA_TXD_F_DESC) +#define MVNETA_TX_L4_CSUM_FULL BIT(30) +#define MVNETA_TX_L4_CSUM_NOT BIT(31) + +#define MVNETA_RXD_ERR_CRC 0x0 +#define MVNETA_RXD_ERR_SUMMARY BIT(16) +#define MVNETA_RXD_ERR_OVERRUN BIT(17) +#define MVNETA_RXD_ERR_LEN BIT(18) +#define MVNETA_RXD_ERR_RESOURCE (BIT(17) | BIT(18)) +#define MVNETA_RXD_ERR_CODE_MASK (BIT(17) | BIT(18)) +#define MVNETA_RXD_L3_IP4 BIT(25) +#define MVNETA_RXD_FIRST_LAST_DESC (BIT(26) | BIT(27)) +#define MVNETA_RXD_L4_CSUM_OK BIT(30) + +struct mvneta_tx_desc { + u32 command; /* Options used by HW for packet transmitting.*/ + u16 reserverd1; /* csum_l4 (for future use) */ + u16 data_size; /* Data size of transmitted packet in bytes */ + u32 buf_phys_addr; /* Physical addr of transmitted buffer */ + u32 reserved2; /* hw_cmd - (for future use, PMT) */ + u32 reserved3[4]; /* Reserved - (for future use) */ +}; + +struct mvneta_rx_desc { + u32 status; /* Info about received packet */ + u16 reserved1; /* pnc_info - (for future use, PnC) */ + u16 data_size; /* Size of received packet in bytes */ + + u32 buf_phys_addr; /* Physical address of the buffer */ + u32 reserved2; /* pnc_flow_id (for future use, PnC) */ + + u32 buf_cookie; /* cookie for access to RX buffer in rx path */ + u16 reserved3; /* prefetch_cmd, for future use */ + u16 reserved4; /* csum_l4 - (for future use, PnC) */ + + u32 reserved5; /* pnc_extra PnC (for future use, PnC) */ + u32 reserved6; /* hw_cmd (for future use, PnC and HWF) */ +}; + +struct mvneta_tx_queue { + /* Number of this TX queue, in the range 0-7 */ + u8 id; + + /* Number of TX DMA descriptors in the descriptor ring */ + int size; + + /* Index of last TX DMA descriptor that was inserted */ + int txq_put_index; + + /* Index of the TX DMA descriptor to be cleaned up */ + int txq_get_index; + + /* Virtual address of the TX DMA descriptors array */ + struct mvneta_tx_desc *descs; + + /* DMA address of the TX DMA descriptors array */ + dma_addr_t descs_phys; + + /* Index of the last TX DMA descriptor */ + int last_desc; + + /* Index of the next TX DMA descriptor to process */ + int next_desc_to_proc; +}; + +struct mvneta_rx_queue { + /* rx queue number, in the range 0-7 */ + u8 id; + + /* num of rx descriptors in the rx descriptor ring */ + int size; + + /* Virtual address of the RX DMA descriptors array */ + struct mvneta_rx_desc *descs; + + /* DMA address of the RX DMA descriptors array */ + dma_addr_t descs_phys; + + /* Index of the last RX DMA descriptor */ + int last_desc; + + /* Index of the next RX DMA descriptor to process */ + int next_desc_to_proc; +}; + +/* U-Boot doesn't use the queues, so set the number to 1 */ +static int rxq_number = 1; +static int txq_number = 1; +static int rxq_def; + +struct buffer_location { + struct mvneta_tx_desc *tx_descs; + struct mvneta_rx_desc *rx_descs; + u32 rx_buffers; +}; + +/* + * All 4 interfaces use the same global buffer, since only one interface + * can be enabled at once + */ +static struct buffer_location buffer_loc; + +/* + * Page table entries are set to 1MB, or multiples of 1MB + * (not < 1MB). driver uses less bd's so use 1MB bdspace. + */ +#define BD_SPACE (1 << 20) + +/* Utility/helper methods */ + +/* Write helper method */ +static void mvreg_write(struct mvneta_port *pp, u32 offset, u32 data) +{ + writel(data, pp->base + offset); +} + +/* Read helper method */ +static u32 mvreg_read(struct mvneta_port *pp, u32 offset) +{ + return readl(pp->base + offset); +} + +/* Clear all MIB counters */ +static void mvneta_mib_counters_clear(struct mvneta_port *pp) +{ + int i; + + /* Perform dummy reads from MIB counters */ + for (i = 0; i < MVNETA_MIB_LATE_COLLISION; i += 4) + mvreg_read(pp, (MVNETA_MIB_COUNTERS_BASE + i)); +} + +/* Rx descriptors helper methods */ + +/* Checks whether the RX descriptor having this status is both the first + * and the last descriptor for the RX packet. Each RX packet is currently + * received through a single RX descriptor, so not having each RX + * descriptor with its first and last bits set is an error + */ +static int mvneta_rxq_desc_is_first_last(u32 status) +{ + return (status & MVNETA_RXD_FIRST_LAST_DESC) == + MVNETA_RXD_FIRST_LAST_DESC; +} + +/* Add number of descriptors ready to receive new packets */ +static void mvneta_rxq_non_occup_desc_add(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq, + int ndescs) +{ + /* Only MVNETA_RXQ_ADD_NON_OCCUPIED_MAX (255) descriptors can + * be added at once + */ + while (ndescs > MVNETA_RXQ_ADD_NON_OCCUPIED_MAX) { + mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), + (MVNETA_RXQ_ADD_NON_OCCUPIED_MAX << + MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT)); + ndescs -= MVNETA_RXQ_ADD_NON_OCCUPIED_MAX; + } + + mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), + (ndescs << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT)); +} + +/* Get number of RX descriptors occupied by received packets */ +static int mvneta_rxq_busy_desc_num_get(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_RXQ_STATUS_REG(rxq->id)); + return val & MVNETA_RXQ_OCCUPIED_ALL_MASK; +} + +/* Update num of rx desc called upon return from rx path or + * from mvneta_rxq_drop_pkts(). + */ +static void mvneta_rxq_desc_num_update(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq, + int rx_done, int rx_filled) +{ + u32 val; + + if ((rx_done <= 0xff) && (rx_filled <= 0xff)) { + val = rx_done | + (rx_filled << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT); + mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), val); + return; + } + + /* Only 255 descriptors can be added at once */ + while ((rx_done > 0) || (rx_filled > 0)) { + if (rx_done <= 0xff) { + val = rx_done; + rx_done = 0; + } else { + val = 0xff; + rx_done -= 0xff; + } + if (rx_filled <= 0xff) { + val |= rx_filled << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT; + rx_filled = 0; + } else { + val |= 0xff << MVNETA_RXQ_ADD_NON_OCCUPIED_SHIFT; + rx_filled -= 0xff; + } + mvreg_write(pp, MVNETA_RXQ_STATUS_UPDATE_REG(rxq->id), val); + } +} + +/* Get pointer to next RX descriptor to be processed by SW */ +static struct mvneta_rx_desc * +mvneta_rxq_next_desc_get(struct mvneta_rx_queue *rxq) +{ + int rx_desc = rxq->next_desc_to_proc; + + rxq->next_desc_to_proc = MVNETA_QUEUE_NEXT_DESC(rxq, rx_desc); + return rxq->descs + rx_desc; +} + +/* Tx descriptors helper methods */ + +/* Update HW with number of TX descriptors to be sent */ +static void mvneta_txq_pend_desc_add(struct mvneta_port *pp, + struct mvneta_tx_queue *txq, + int pend_desc) +{ + u32 val; + + /* Only 255 descriptors can be added at once ; Assume caller + * process TX desriptors in quanta less than 256 + */ + val = pend_desc; + mvreg_write(pp, MVNETA_TXQ_UPDATE_REG(txq->id), val); +} + +/* Get pointer to next TX descriptor to be processed (send) by HW */ +static struct mvneta_tx_desc * +mvneta_txq_next_desc_get(struct mvneta_tx_queue *txq) +{ + int tx_desc = txq->next_desc_to_proc; + + txq->next_desc_to_proc = MVNETA_QUEUE_NEXT_DESC(txq, tx_desc); + return txq->descs + tx_desc; +} + +/* Set rxq buf size */ +static void mvneta_rxq_buf_size_set(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq, + int buf_size) +{ + u32 val; + + val = mvreg_read(pp, MVNETA_RXQ_SIZE_REG(rxq->id)); + + val &= ~MVNETA_RXQ_BUF_SIZE_MASK; + val |= ((buf_size >> 3) << MVNETA_RXQ_BUF_SIZE_SHIFT); + + mvreg_write(pp, MVNETA_RXQ_SIZE_REG(rxq->id), val); +} + +/* Start the Ethernet port RX and TX activity */ +static void mvneta_port_up(struct mvneta_port *pp) +{ + int queue; + u32 q_map; + + /* Enable all initialized TXs. */ + mvneta_mib_counters_clear(pp); + q_map = 0; + for (queue = 0; queue < txq_number; queue++) { + struct mvneta_tx_queue *txq = &pp->txqs[queue]; + if (txq->descs != NULL) + q_map |= (1 << queue); + } + mvreg_write(pp, MVNETA_TXQ_CMD, q_map); + + /* Enable all initialized RXQs. */ + q_map = 0; + for (queue = 0; queue < rxq_number; queue++) { + struct mvneta_rx_queue *rxq = &pp->rxqs[queue]; + if (rxq->descs != NULL) + q_map |= (1 << queue); + } + mvreg_write(pp, MVNETA_RXQ_CMD, q_map); +} + +/* Stop the Ethernet port activity */ +static void mvneta_port_down(struct mvneta_port *pp) +{ + u32 val; + int count; + + /* Stop Rx port activity. Check port Rx activity. */ + val = mvreg_read(pp, MVNETA_RXQ_CMD) & MVNETA_RXQ_ENABLE_MASK; + + /* Issue stop command for active channels only */ + if (val != 0) + mvreg_write(pp, MVNETA_RXQ_CMD, + val << MVNETA_RXQ_DISABLE_SHIFT); + + /* Wait for all Rx activity to terminate. */ + count = 0; + do { + if (count++ >= MVNETA_RX_DISABLE_TIMEOUT_MSEC) { + netdev_warn(pp->dev, + "TIMEOUT for RX stopped ! rx_queue_cmd: 0x08%x\n", + val); + break; + } + mdelay(1); + + val = mvreg_read(pp, MVNETA_RXQ_CMD); + } while (val & 0xff); + + /* Stop Tx port activity. Check port Tx activity. Issue stop + * command for active channels only + */ + val = (mvreg_read(pp, MVNETA_TXQ_CMD)) & MVNETA_TXQ_ENABLE_MASK; + + if (val != 0) + mvreg_write(pp, MVNETA_TXQ_CMD, + (val << MVNETA_TXQ_DISABLE_SHIFT)); + + /* Wait for all Tx activity to terminate. */ + count = 0; + do { + if (count++ >= MVNETA_TX_DISABLE_TIMEOUT_MSEC) { + netdev_warn(pp->dev, + "TIMEOUT for TX stopped status=0x%08x\n", + val); + break; + } + mdelay(1); + + /* Check TX Command reg that all Txqs are stopped */ + val = mvreg_read(pp, MVNETA_TXQ_CMD); + + } while (val & 0xff); + + /* Double check to verify that TX FIFO is empty */ + count = 0; + do { + if (count++ >= MVNETA_TX_FIFO_EMPTY_TIMEOUT) { + netdev_warn(pp->dev, + "TX FIFO empty timeout status=0x08%x\n", + val); + break; + } + mdelay(1); + + val = mvreg_read(pp, MVNETA_PORT_STATUS); + } while (!(val & MVNETA_TX_FIFO_EMPTY) && + (val & MVNETA_TX_IN_PRGRS)); + + udelay(200); +} + +/* Enable the port by setting the port enable bit of the MAC control register */ +static void mvneta_port_enable(struct mvneta_port *pp) +{ + u32 val; + + /* Enable port */ + val = mvreg_read(pp, MVNETA_GMAC_CTRL_0); + val |= MVNETA_GMAC0_PORT_ENABLE; + mvreg_write(pp, MVNETA_GMAC_CTRL_0, val); +} + +/* Disable the port and wait for about 200 usec before retuning */ +static void mvneta_port_disable(struct mvneta_port *pp) +{ + u32 val; + + /* Reset the Enable bit in the Serial Control Register */ + val = mvreg_read(pp, MVNETA_GMAC_CTRL_0); + val &= ~MVNETA_GMAC0_PORT_ENABLE; + mvreg_write(pp, MVNETA_GMAC_CTRL_0, val); + + udelay(200); +} + +/* Multicast tables methods */ + +/* Set all entries in Unicast MAC Table; queue==-1 means reject all */ +static void mvneta_set_ucast_table(struct mvneta_port *pp, int queue) +{ + int offset; + u32 val; + + if (queue == -1) { + val = 0; + } else { + val = 0x1 | (queue << 1); + val |= (val << 24) | (val << 16) | (val << 8); + } + + for (offset = 0; offset <= 0xc; offset += 4) + mvreg_write(pp, MVNETA_DA_FILT_UCAST_BASE + offset, val); +} + +/* Set all entries in Special Multicast MAC Table; queue==-1 means reject all */ +static void mvneta_set_special_mcast_table(struct mvneta_port *pp, int queue) +{ + int offset; + u32 val; + + if (queue == -1) { + val = 0; + } else { + val = 0x1 | (queue << 1); + val |= (val << 24) | (val << 16) | (val << 8); + } + + for (offset = 0; offset <= 0xfc; offset += 4) + mvreg_write(pp, MVNETA_DA_FILT_SPEC_MCAST + offset, val); +} + +/* Set all entries in Other Multicast MAC Table. queue==-1 means reject all */ +static void mvneta_set_other_mcast_table(struct mvneta_port *pp, int queue) +{ + int offset; + u32 val; + + if (queue == -1) { + memset(pp->mcast_count, 0, sizeof(pp->mcast_count)); + val = 0; + } else { + memset(pp->mcast_count, 1, sizeof(pp->mcast_count)); + val = 0x1 | (queue << 1); + val |= (val << 24) | (val << 16) | (val << 8); + } + + for (offset = 0; offset <= 0xfc; offset += 4) + mvreg_write(pp, MVNETA_DA_FILT_OTH_MCAST + offset, val); +} + +/* This method sets defaults to the NETA port: + * Clears interrupt Cause and Mask registers. + * Clears all MAC tables. + * Sets defaults to all registers. + * Resets RX and TX descriptor rings. + * Resets PHY. + * This method can be called after mvneta_port_down() to return the port + * settings to defaults. + */ +static void mvneta_defaults_set(struct mvneta_port *pp) +{ + int cpu; + int queue; + u32 val; + + /* Clear all Cause registers */ + mvreg_write(pp, MVNETA_INTR_NEW_CAUSE, 0); + mvreg_write(pp, MVNETA_INTR_OLD_CAUSE, 0); + mvreg_write(pp, MVNETA_INTR_MISC_CAUSE, 0); + + /* Mask all interrupts */ + mvreg_write(pp, MVNETA_INTR_NEW_MASK, 0); + mvreg_write(pp, MVNETA_INTR_OLD_MASK, 0); + mvreg_write(pp, MVNETA_INTR_MISC_MASK, 0); + mvreg_write(pp, MVNETA_INTR_ENABLE, 0); + + /* Enable MBUS Retry bit16 */ + mvreg_write(pp, MVNETA_MBUS_RETRY, 0x20); + + /* Set CPU queue access map - all CPUs have access to all RX + * queues and to all TX queues + */ + for (cpu = 0; cpu < CONFIG_NR_CPUS; cpu++) + mvreg_write(pp, MVNETA_CPU_MAP(cpu), + (MVNETA_CPU_RXQ_ACCESS_ALL_MASK | + MVNETA_CPU_TXQ_ACCESS_ALL_MASK)); + + /* Reset RX and TX DMAs */ + mvreg_write(pp, MVNETA_PORT_RX_RESET, MVNETA_PORT_RX_DMA_RESET); + mvreg_write(pp, MVNETA_PORT_TX_RESET, MVNETA_PORT_TX_DMA_RESET); + + /* Disable Legacy WRR, Disable EJP, Release from reset */ + mvreg_write(pp, MVNETA_TXQ_CMD_1, 0); + for (queue = 0; queue < txq_number; queue++) { + mvreg_write(pp, MVETH_TXQ_TOKEN_COUNT_REG(queue), 0); + mvreg_write(pp, MVETH_TXQ_TOKEN_CFG_REG(queue), 0); + } + + mvreg_write(pp, MVNETA_PORT_TX_RESET, 0); + mvreg_write(pp, MVNETA_PORT_RX_RESET, 0); + + /* Set Port Acceleration Mode */ + val = MVNETA_ACC_MODE_EXT; + mvreg_write(pp, MVNETA_ACC_MODE, val); + + /* Update val of portCfg register accordingly with all RxQueue types */ + val = MVNETA_PORT_CONFIG_DEFL_VALUE(rxq_def); + mvreg_write(pp, MVNETA_PORT_CONFIG, val); + + val = 0; + mvreg_write(pp, MVNETA_PORT_CONFIG_EXTEND, val); + mvreg_write(pp, MVNETA_RX_MIN_FRAME_SIZE, 64); + + /* Build PORT_SDMA_CONFIG_REG */ + val = 0; + + /* Default burst size */ + val |= MVNETA_TX_BRST_SZ_MASK(MVNETA_SDMA_BRST_SIZE_16); + val |= MVNETA_RX_BRST_SZ_MASK(MVNETA_SDMA_BRST_SIZE_16); + val |= MVNETA_RX_NO_DATA_SWAP | MVNETA_TX_NO_DATA_SWAP; + + /* Assign port SDMA configuration */ + mvreg_write(pp, MVNETA_SDMA_CONFIG, val); + + /* Enable PHY polling in hardware for U-Boot */ + val = mvreg_read(pp, MVNETA_UNIT_CONTROL); + val |= MVNETA_PHY_POLLING_ENABLE; + mvreg_write(pp, MVNETA_UNIT_CONTROL, val); + + mvneta_set_ucast_table(pp, -1); + mvneta_set_special_mcast_table(pp, -1); + mvneta_set_other_mcast_table(pp, -1); +} + +/* Set unicast address */ +static void mvneta_set_ucast_addr(struct mvneta_port *pp, u8 last_nibble, + int queue) +{ + unsigned int unicast_reg; + unsigned int tbl_offset; + unsigned int reg_offset; + + /* Locate the Unicast table entry */ + last_nibble = (0xf & last_nibble); + + /* offset from unicast tbl base */ + tbl_offset = (last_nibble / 4) * 4; + + /* offset within the above reg */ + reg_offset = last_nibble % 4; + + unicast_reg = mvreg_read(pp, (MVNETA_DA_FILT_UCAST_BASE + tbl_offset)); + + if (queue == -1) { + /* Clear accepts frame bit at specified unicast DA tbl entry */ + unicast_reg &= ~(0xff << (8 * reg_offset)); + } else { + unicast_reg &= ~(0xff << (8 * reg_offset)); + unicast_reg |= ((0x01 | (queue << 1)) << (8 * reg_offset)); + } + + mvreg_write(pp, (MVNETA_DA_FILT_UCAST_BASE + tbl_offset), unicast_reg); +} + +/* Set mac address */ +static void mvneta_mac_addr_set(struct mvneta_port *pp, unsigned char *addr, + int queue) +{ + unsigned int mac_h; + unsigned int mac_l; + + if (queue != -1) { + mac_l = (addr[4] << 8) | (addr[5]); + mac_h = (addr[0] << 24) | (addr[1] << 16) | + (addr[2] << 8) | (addr[3] << 0); + + mvreg_write(pp, MVNETA_MAC_ADDR_LOW, mac_l); + mvreg_write(pp, MVNETA_MAC_ADDR_HIGH, mac_h); + } + + /* Accept frames of this address */ + mvneta_set_ucast_addr(pp, addr[5], queue); +} + +/* Handle rx descriptor fill by setting buf_cookie and buf_phys_addr */ +static void mvneta_rx_desc_fill(struct mvneta_rx_desc *rx_desc, + u32 phys_addr, u32 cookie) +{ + rx_desc->buf_cookie = cookie; + rx_desc->buf_phys_addr = phys_addr; +} + +/* Decrement sent descriptors counter */ +static void mvneta_txq_sent_desc_dec(struct mvneta_port *pp, + struct mvneta_tx_queue *txq, + int sent_desc) +{ + u32 val; + + /* Only 255 TX descriptors can be updated at once */ + while (sent_desc > 0xff) { + val = 0xff << MVNETA_TXQ_DEC_SENT_SHIFT; + mvreg_write(pp, MVNETA_TXQ_UPDATE_REG(txq->id), val); + sent_desc = sent_desc - 0xff; + } + + val = sent_desc << MVNETA_TXQ_DEC_SENT_SHIFT; + mvreg_write(pp, MVNETA_TXQ_UPDATE_REG(txq->id), val); +} + +/* Get number of TX descriptors already sent by HW */ +static int mvneta_txq_sent_desc_num_get(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + u32 val; + int sent_desc; + + val = mvreg_read(pp, MVNETA_TXQ_STATUS_REG(txq->id)); + sent_desc = (val & MVNETA_TXQ_SENT_DESC_MASK) >> + MVNETA_TXQ_SENT_DESC_SHIFT; + + return sent_desc; +} + +/* Display more error info */ +static void mvneta_rx_error(struct mvneta_port *pp, + struct mvneta_rx_desc *rx_desc) +{ + u32 status = rx_desc->status; + + if (!mvneta_rxq_desc_is_first_last(status)) { + netdev_err(pp->dev, + "bad rx status %08x (buffer oversize), size=%d\n", + status, rx_desc->data_size); + return; + } + + switch (status & MVNETA_RXD_ERR_CODE_MASK) { + case MVNETA_RXD_ERR_CRC: + netdev_err(pp->dev, "bad rx status %08x (crc error), size=%d\n", + status, rx_desc->data_size); + break; + case MVNETA_RXD_ERR_OVERRUN: + netdev_err(pp->dev, "bad rx status %08x (overrun error), size=%d\n", + status, rx_desc->data_size); + break; + case MVNETA_RXD_ERR_LEN: + netdev_err(pp->dev, "bad rx status %08x (max frame length error), size=%d\n", + status, rx_desc->data_size); + break; + case MVNETA_RXD_ERR_RESOURCE: + netdev_err(pp->dev, "bad rx status %08x (resource error), size=%d\n", + status, rx_desc->data_size); + break; + } +} + +static struct mvneta_rx_queue *mvneta_rxq_handle_get(struct mvneta_port *pp, + int rxq) +{ + return &pp->rxqs[rxq]; +} + + +/* Drop packets received by the RXQ and free buffers */ +static void mvneta_rxq_drop_pkts(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + int rx_done; + + rx_done = mvneta_rxq_busy_desc_num_get(pp, rxq); + if (rx_done) + mvneta_rxq_desc_num_update(pp, rxq, rx_done, rx_done); +} + +/* Handle rxq fill: allocates rxq skbs; called when initializing a port */ +static int mvneta_rxq_fill(struct mvneta_port *pp, struct mvneta_rx_queue *rxq, + int num) +{ + int i; + + for (i = 0; i < num; i++) { + u32 addr; + + /* U-Boot special: Fill in the rx buffer addresses */ + addr = buffer_loc.rx_buffers + (i * RX_BUFFER_SIZE); + mvneta_rx_desc_fill(rxq->descs + i, addr, addr); + } + + /* Add this number of RX descriptors as non occupied (ready to + * get packets) + */ + mvneta_rxq_non_occup_desc_add(pp, rxq, i); + + return 0; +} + +/* Rx/Tx queue initialization/cleanup methods */ + +/* Create a specified RX queue */ +static int mvneta_rxq_init(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) + +{ + rxq->size = pp->rx_ring_size; + + /* Allocate memory for RX descriptors */ + rxq->descs_phys = (dma_addr_t)rxq->descs; + if (rxq->descs == NULL) + return -ENOMEM; + + rxq->last_desc = rxq->size - 1; + + /* Set Rx descriptors queue starting address */ + mvreg_write(pp, MVNETA_RXQ_BASE_ADDR_REG(rxq->id), rxq->descs_phys); + mvreg_write(pp, MVNETA_RXQ_SIZE_REG(rxq->id), rxq->size); + + /* Fill RXQ with buffers from RX pool */ + mvneta_rxq_buf_size_set(pp, rxq, RX_BUFFER_SIZE); + mvneta_rxq_fill(pp, rxq, rxq->size); + + return 0; +} + +/* Cleanup Rx queue */ +static void mvneta_rxq_deinit(struct mvneta_port *pp, + struct mvneta_rx_queue *rxq) +{ + mvneta_rxq_drop_pkts(pp, rxq); + + rxq->descs = NULL; + rxq->last_desc = 0; + rxq->next_desc_to_proc = 0; + rxq->descs_phys = 0; +} + +/* Create and initialize a tx queue */ +static int mvneta_txq_init(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + txq->size = pp->tx_ring_size; + + /* Allocate memory for TX descriptors */ + txq->descs_phys = (u32)txq->descs; + if (txq->descs == NULL) + return -ENOMEM; + + txq->last_desc = txq->size - 1; + + /* Set maximum bandwidth for enabled TXQs */ + mvreg_write(pp, MVETH_TXQ_TOKEN_CFG_REG(txq->id), 0x03ffffff); + mvreg_write(pp, MVETH_TXQ_TOKEN_COUNT_REG(txq->id), 0x3fffffff); + + /* Set Tx descriptors queue starting address */ + mvreg_write(pp, MVNETA_TXQ_BASE_ADDR_REG(txq->id), txq->descs_phys); + mvreg_write(pp, MVNETA_TXQ_SIZE_REG(txq->id), txq->size); + + return 0; +} + +/* Free allocated resources when mvneta_txq_init() fails to allocate memory*/ +static void mvneta_txq_deinit(struct mvneta_port *pp, + struct mvneta_tx_queue *txq) +{ + txq->descs = NULL; + txq->last_desc = 0; + txq->next_desc_to_proc = 0; + txq->descs_phys = 0; + + /* Set minimum bandwidth for disabled TXQs */ + mvreg_write(pp, MVETH_TXQ_TOKEN_CFG_REG(txq->id), 0); + mvreg_write(pp, MVETH_TXQ_TOKEN_COUNT_REG(txq->id), 0); + + /* Set Tx descriptors queue starting address and size */ + mvreg_write(pp, MVNETA_TXQ_BASE_ADDR_REG(txq->id), 0); + mvreg_write(pp, MVNETA_TXQ_SIZE_REG(txq->id), 0); +} + +/* Cleanup all Tx queues */ +static void mvneta_cleanup_txqs(struct mvneta_port *pp) +{ + int queue; + + for (queue = 0; queue < txq_number; queue++) + mvneta_txq_deinit(pp, &pp->txqs[queue]); +} + +/* Cleanup all Rx queues */ +static void mvneta_cleanup_rxqs(struct mvneta_port *pp) +{ + int queue; + + for (queue = 0; queue < rxq_number; queue++) + mvneta_rxq_deinit(pp, &pp->rxqs[queue]); +} + + +/* Init all Rx queues */ +static int mvneta_setup_rxqs(struct mvneta_port *pp) +{ + int queue; + + for (queue = 0; queue < rxq_number; queue++) { + int err = mvneta_rxq_init(pp, &pp->rxqs[queue]); + if (err) { + netdev_err(pp->dev, "%s: can't create rxq=%d\n", + __func__, queue); + mvneta_cleanup_rxqs(pp); + return err; + } + } + + return 0; +} + +/* Init all tx queues */ +static int mvneta_setup_txqs(struct mvneta_port *pp) +{ + int queue; + + for (queue = 0; queue < txq_number; queue++) { + int err = mvneta_txq_init(pp, &pp->txqs[queue]); + if (err) { + netdev_err(pp->dev, "%s: can't create txq=%d\n", + __func__, queue); + mvneta_cleanup_txqs(pp); + return err; + } + } + + return 0; +} + +static void mvneta_start_dev(struct mvneta_port *pp) +{ + /* start the Rx/Tx activity */ + mvneta_port_enable(pp); +} + +static void mvneta_adjust_link(struct eth_device *dev) +{ + struct mvneta_port *pp = dev->priv; + struct phy_device *phydev = pp->phydev; + int status_change = 0; + + if (phydev->link) { + if ((pp->speed != phydev->speed) || + (pp->duplex != phydev->duplex)) { + u32 val; + + val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + val &= ~(MVNETA_GMAC_CONFIG_MII_SPEED | + MVNETA_GMAC_CONFIG_GMII_SPEED | + MVNETA_GMAC_CONFIG_FULL_DUPLEX | + MVNETA_GMAC_AN_SPEED_EN | + MVNETA_GMAC_AN_DUPLEX_EN); + + if (phydev->duplex) + val |= MVNETA_GMAC_CONFIG_FULL_DUPLEX; + + if (phydev->speed == SPEED_1000) + val |= MVNETA_GMAC_CONFIG_GMII_SPEED; + else + val |= MVNETA_GMAC_CONFIG_MII_SPEED; + + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); + + pp->duplex = phydev->duplex; + pp->speed = phydev->speed; + } + } + + if (phydev->link != pp->link) { + if (!phydev->link) { + pp->duplex = -1; + pp->speed = 0; + } + + pp->link = phydev->link; + status_change = 1; + } + + if (status_change) { + if (phydev->link) { + u32 val = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); + val |= (MVNETA_GMAC_FORCE_LINK_PASS | + MVNETA_GMAC_FORCE_LINK_DOWN); + mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val); + mvneta_port_up(pp); + } else { + mvneta_port_down(pp); + } + } +} + +static int mvneta_open(struct eth_device *dev) +{ + struct mvneta_port *pp = dev->priv; + int ret; + + ret = mvneta_setup_rxqs(pp); + if (ret) + return ret; + + ret = mvneta_setup_txqs(pp); + if (ret) + return ret; + + mvneta_adjust_link(dev); + + mvneta_start_dev(pp); + + return 0; +} + +/* Initialize hw */ +static int mvneta_init(struct mvneta_port *pp) +{ + int queue; + + /* Disable port */ + mvneta_port_disable(pp); + + /* Set port default values */ + mvneta_defaults_set(pp); + + pp->txqs = kzalloc(txq_number * sizeof(struct mvneta_tx_queue), + GFP_KERNEL); + if (!pp->txqs) + return -ENOMEM; + + /* U-Boot special: use preallocated area */ + pp->txqs[0].descs = buffer_loc.tx_descs; + + /* Initialize TX descriptor rings */ + for (queue = 0; queue < txq_number; queue++) { + struct mvneta_tx_queue *txq = &pp->txqs[queue]; + txq->id = queue; + txq->size = pp->tx_ring_size; + } + + pp->rxqs = kzalloc(rxq_number * sizeof(struct mvneta_rx_queue), + GFP_KERNEL); + if (!pp->rxqs) { + kfree(pp->txqs); + return -ENOMEM; + } + + /* U-Boot special: use preallocated area */ + pp->rxqs[0].descs = buffer_loc.rx_descs; + + /* Create Rx descriptor rings */ + for (queue = 0; queue < rxq_number; queue++) { + struct mvneta_rx_queue *rxq = &pp->rxqs[queue]; + rxq->id = queue; + rxq->size = pp->rx_ring_size; + } + + return 0; +} + +/* platform glue : initialize decoding windows */ +static void mvneta_conf_mbus_windows(struct mvneta_port *pp) +{ + const struct mbus_dram_target_info *dram; + u32 win_enable; + u32 win_protect; + int i; + + dram = mvebu_mbus_dram_info(); + for (i = 0; i < 6; i++) { + mvreg_write(pp, MVNETA_WIN_BASE(i), 0); + mvreg_write(pp, MVNETA_WIN_SIZE(i), 0); + + if (i < 4) + mvreg_write(pp, MVNETA_WIN_REMAP(i), 0); + } + + win_enable = 0x3f; + win_protect = 0; + + for (i = 0; i < dram->num_cs; i++) { + const struct mbus_dram_window *cs = dram->cs + i; + mvreg_write(pp, MVNETA_WIN_BASE(i), (cs->base & 0xffff0000) | + (cs->mbus_attr << 8) | dram->mbus_dram_target_id); + + mvreg_write(pp, MVNETA_WIN_SIZE(i), + (cs->size - 1) & 0xffff0000); + + win_enable &= ~(1 << i); + win_protect |= 3 << (2 * i); + } + + mvreg_write(pp, MVNETA_BASE_ADDR_ENABLE, win_enable); +} + +/* Power up the port */ +static int mvneta_port_power_up(struct mvneta_port *pp, int phy_mode) +{ + u32 ctrl; + + /* MAC Cause register should be cleared */ + mvreg_write(pp, MVNETA_UNIT_INTR_CAUSE, 0); + + ctrl = mvreg_read(pp, MVNETA_GMAC_CTRL_2); + + /* Even though it might look weird, when we're configured in + * SGMII or QSGMII mode, the RGMII bit needs to be set. + */ + switch (phy_mode) { + case PHY_INTERFACE_MODE_QSGMII: + mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_QSGMII_SERDES_PROTO); + ctrl |= MVNETA_GMAC2_PCS_ENABLE | MVNETA_GMAC2_PORT_RGMII; + break; + case PHY_INTERFACE_MODE_SGMII: + mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_SGMII_SERDES_PROTO); + ctrl |= MVNETA_GMAC2_PCS_ENABLE | MVNETA_GMAC2_PORT_RGMII; + break; + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + ctrl |= MVNETA_GMAC2_PORT_RGMII; + break; + default: + return -EINVAL; + } + + /* Cancel Port Reset */ + ctrl &= ~MVNETA_GMAC2_PORT_RESET; + mvreg_write(pp, MVNETA_GMAC_CTRL_2, ctrl); + + while ((mvreg_read(pp, MVNETA_GMAC_CTRL_2) & + MVNETA_GMAC2_PORT_RESET) != 0) + continue; + + return 0; +} + +/* Device initialization routine */ +static int mvneta_probe(struct eth_device *dev) +{ + struct mvneta_port *pp = dev->priv; + int err; + + pp->tx_ring_size = MVNETA_MAX_TXD; + pp->rx_ring_size = MVNETA_MAX_RXD; + + err = mvneta_init(pp); + if (err < 0) { + dev_err(&pdev->dev, "can't init eth hal\n"); + return err; + } + + mvneta_conf_mbus_windows(pp); + + mvneta_mac_addr_set(pp, dev->enetaddr, rxq_def); + + err = mvneta_port_power_up(pp, pp->phy_interface); + if (err < 0) { + dev_err(&pdev->dev, "can't power up port\n"); + return err; + } + + /* Call open() now as it needs to be done before runing send() */ + mvneta_open(dev); + + return 0; +} + +/* U-Boot only functions follow here */ + +/* SMI / MDIO functions */ + +static int smi_wait_ready(struct mvneta_port *pp) +{ + u32 timeout = MVNETA_SMI_TIMEOUT; + u32 smi_reg; + + /* wait till the SMI is not busy */ + do { + /* read smi register */ + smi_reg = mvreg_read(pp, MVNETA_SMI); + if (timeout-- == 0) { + printf("Error: SMI busy timeout\n"); + return -EFAULT; + } + } while (smi_reg & MVNETA_SMI_BUSY); + + return 0; +} + +/* + * smi_reg_read - miiphy_read callback function. + * + * Returns 16bit phy register value, or 0xffff on error + */ +static int smi_reg_read(const char *devname, u8 phy_adr, u8 reg_ofs, u16 *data) +{ + struct eth_device *dev = eth_get_dev_by_name(devname); + struct mvneta_port *pp = dev->priv; + u32 smi_reg; + u32 timeout; + + /* check parameters */ + if (phy_adr > MVNETA_PHY_ADDR_MASK) { + printf("Error: Invalid PHY address %d\n", phy_adr); + return -EFAULT; + } + + if (reg_ofs > MVNETA_PHY_REG_MASK) { + printf("Err: Invalid register offset %d\n", reg_ofs); + return -EFAULT; + } + + /* wait till the SMI is not busy */ + if (smi_wait_ready(pp) < 0) + return -EFAULT; + + /* fill the phy address and regiser offset and read opcode */ + smi_reg = (phy_adr << MVNETA_SMI_DEV_ADDR_OFFS) + | (reg_ofs << MVNETA_SMI_REG_ADDR_OFFS) + | MVNETA_SMI_OPCODE_READ; + + /* write the smi register */ + mvreg_write(pp, MVNETA_SMI, smi_reg); + + /*wait till read value is ready */ + timeout = MVNETA_SMI_TIMEOUT; + + do { + /* read smi register */ + smi_reg = mvreg_read(pp, MVNETA_SMI); + if (timeout-- == 0) { + printf("Err: SMI read ready timeout\n"); + return -EFAULT; + } + } while (!(smi_reg & MVNETA_SMI_READ_VALID)); + + /* Wait for the data to update in the SMI register */ + for (timeout = 0; timeout < MVNETA_SMI_TIMEOUT; timeout++) + ; + + *data = (u16)(mvreg_read(pp, MVNETA_SMI) & MVNETA_SMI_DATA_MASK); + + return 0; +} + +/* + * smi_reg_write - imiiphy_write callback function. + * + * Returns 0 if write succeed, -EINVAL on bad parameters + * -ETIME on timeout + */ +static int smi_reg_write(const char *devname, u8 phy_adr, u8 reg_ofs, u16 data) +{ + struct eth_device *dev = eth_get_dev_by_name(devname); + struct mvneta_port *pp = dev->priv; + u32 smi_reg; + + /* check parameters */ + if (phy_adr > MVNETA_PHY_ADDR_MASK) { + printf("Error: Invalid PHY address %d\n", phy_adr); + return -EFAULT; + } + + if (reg_ofs > MVNETA_PHY_REG_MASK) { + printf("Err: Invalid register offset %d\n", reg_ofs); + return -EFAULT; + } + + /* wait till the SMI is not busy */ + if (smi_wait_ready(pp) < 0) + return -EFAULT; + + /* fill the phy addr and reg offset and write opcode and data */ + smi_reg = (data << MVNETA_SMI_DATA_OFFS); + smi_reg |= (phy_adr << MVNETA_SMI_DEV_ADDR_OFFS) + | (reg_ofs << MVNETA_SMI_REG_ADDR_OFFS); + smi_reg &= ~MVNETA_SMI_OPCODE_READ; + + /* write the smi register */ + mvreg_write(pp, MVNETA_SMI, smi_reg); + + return 0; +} + +static int mvneta_init_u_boot(struct eth_device *dev, bd_t *bis) +{ + struct mvneta_port *pp = dev->priv; + struct phy_device *phydev; + + mvneta_port_power_up(pp, pp->phy_interface); + + if (!pp->init || pp->link == 0) { + /* Set phy address of the port */ + mvreg_write(pp, MVNETA_PHY_ADDR, pp->phyaddr); + phydev = phy_connect(pp->bus, pp->phyaddr, dev, + pp->phy_interface); + + pp->phydev = phydev; + phy_config(phydev); + phy_startup(phydev); + if (!phydev->link) { + printf("%s: No link.\n", phydev->dev->name); + return -1; + } + + /* Full init on first call */ + mvneta_probe(dev); + pp->init = 1; + } else { + /* Upon all following calls, this is enough */ + mvneta_port_up(pp); + mvneta_port_enable(pp); + } + + return 0; +} + +static int mvneta_send(struct eth_device *dev, void *ptr, int len) +{ + struct mvneta_port *pp = dev->priv; + struct mvneta_tx_queue *txq = &pp->txqs[0]; + struct mvneta_tx_desc *tx_desc; + int sent_desc; + u32 timeout = 0; + + /* Get a descriptor for the first part of the packet */ + tx_desc = mvneta_txq_next_desc_get(txq); + + tx_desc->buf_phys_addr = (u32)ptr; + tx_desc->data_size = len; + flush_dcache_range((u32)ptr, (u32)ptr + len); + + /* First and Last descriptor */ + tx_desc->command = MVNETA_TX_L4_CSUM_NOT | MVNETA_TXD_FLZ_DESC; + mvneta_txq_pend_desc_add(pp, txq, 1); + + /* Wait for packet to be sent (queue might help with speed here) */ + sent_desc = mvneta_txq_sent_desc_num_get(pp, txq); + while (!sent_desc) { + if (timeout++ > 10000) { + printf("timeout: packet not sent\n"); + return -1; + } + sent_desc = mvneta_txq_sent_desc_num_get(pp, txq); + } + + /* txDone has increased - hw sent packet */ + mvneta_txq_sent_desc_dec(pp, txq, sent_desc); + return 0; + + return 0; +} + +static int mvneta_recv(struct eth_device *dev) +{ + struct mvneta_port *pp = dev->priv; + int rx_done; + int packets_done; + struct mvneta_rx_queue *rxq; + + /* get rx queue */ + rxq = mvneta_rxq_handle_get(pp, rxq_def); + rx_done = mvneta_rxq_busy_desc_num_get(pp, rxq); + packets_done = rx_done; + + while (packets_done--) { + struct mvneta_rx_desc *rx_desc; + unsigned char *data; + u32 rx_status; + int rx_bytes; + + /* + * No cache invalidation needed here, since the desc's are + * located in a uncached memory region + */ + rx_desc = mvneta_rxq_next_desc_get(rxq); + + rx_status = rx_desc->status; + if (!mvneta_rxq_desc_is_first_last(rx_status) || + (rx_status & MVNETA_RXD_ERR_SUMMARY)) { + mvneta_rx_error(pp, rx_desc); + /* leave the descriptor untouched */ + continue; + } + + /* 2 bytes for marvell header. 4 bytes for crc */ + rx_bytes = rx_desc->data_size - 6; + + /* give packet to stack - skip on first 2 bytes */ + data = (u8 *)rx_desc->buf_cookie + 2; + /* + * No cache invalidation needed here, since the rx_buffer's are + * located in a uncached memory region + */ + NetReceive(data, rx_bytes); + } + + /* Update rxq management counters */ + if (rx_done) + mvneta_rxq_desc_num_update(pp, rxq, rx_done, rx_done); + + return 0; +} + +static void mvneta_halt(struct eth_device *dev) +{ + struct mvneta_port *pp = dev->priv; + + mvneta_port_down(pp); + mvneta_port_disable(pp); +} + +int mvneta_initialize(bd_t *bis, int base_addr, int devnum, int phy_addr) +{ + struct eth_device *dev; + struct mvneta_port *pp; + void *bd_space; + + dev = calloc(1, sizeof(*dev)); + if (dev == NULL) + return -ENOMEM; + + pp = calloc(1, sizeof(*pp)); + if (pp == NULL) + return -ENOMEM; + + dev->priv = pp; + + /* + * Allocate buffer area for descs and rx_buffers. This is only + * done once for all interfaces. As only one interface can + * be active. Make this area DMA save by disabling the D-cache + */ + if (!buffer_loc.tx_descs) { + /* Align buffer area for descs and rx_buffers to 1MiB */ + bd_space = memalign(1 << MMU_SECTION_SHIFT, BD_SPACE); + mmu_set_region_dcache_behaviour((u32)bd_space, BD_SPACE, + DCACHE_OFF); + buffer_loc.tx_descs = (struct mvneta_tx_desc *)bd_space; + buffer_loc.rx_descs = (struct mvneta_rx_desc *) + ((u32)bd_space + + MVNETA_MAX_TXD * sizeof(struct mvneta_tx_desc)); + buffer_loc.rx_buffers = (u32) + (bd_space + + MVNETA_MAX_TXD * sizeof(struct mvneta_tx_desc) + + MVNETA_MAX_RXD * sizeof(struct mvneta_rx_desc)); + } + + sprintf(dev->name, "neta%d", devnum); + + pp->base = (void __iomem *)base_addr; + dev->iobase = base_addr; + dev->init = mvneta_init_u_boot; + dev->halt = mvneta_halt; + dev->send = mvneta_send; + dev->recv = mvneta_recv; + dev->write_hwaddr = NULL; + + /* + * The PHY interface type is configured via the + * board specific CONFIG_SYS_NETA_INTERFACE_TYPE + * define. + */ + pp->phy_interface = CONFIG_SYS_NETA_INTERFACE_TYPE; + + eth_register(dev); + + pp->phyaddr = phy_addr; + miiphy_register(dev->name, smi_reg_read, smi_reg_write); + pp->bus = miiphy_get_dev_by_name(dev->name); + + return 1; +} diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 1d6c14f..467c972 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -575,7 +575,7 @@ static struct phy_device *phy_device_create(struct mii_dev *bus, int addr, * Description: Reads the ID registers of the PHY at @addr on the * @bus, stores it in @phy_id and returns zero on success. */ -int __weak get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id) +static int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id) { int phy_reg; @@ -648,7 +648,7 @@ static struct phy_device *get_phy_device_by_mask(struct mii_dev *bus, if (phydev) return phydev; } - printf("Phy not found\n"); + printf("Phy %d not found\n", ffs(phy_mask) - 1); return phy_device_create(bus, ffs(phy_mask) - 1, 0xffffffff, interface); } @@ -785,16 +785,13 @@ int phy_startup(struct phy_device *phydev) return 0; } -static int __board_phy_config(struct phy_device *phydev) +__weak int board_phy_config(struct phy_device *phydev) { if (phydev->drv->config) return phydev->drv->config(phydev); return 0; } -int board_phy_config(struct phy_device *phydev) - __attribute__((weak, alias("__board_phy_config"))); - int phy_config(struct phy_device *phydev) { /* Invoke an optional board-specific helper */ |