Ethernet driver configures the CPSW, SGMI and Phy and uses the the Navigator APIs. The driver supports 4 Ethernet ports and can work with only one port at a time.
Port configurations are defined in board.c.
Signed-off-by: Vitaly Andrianov vitalya@ti.com Signed-off-by: Murali Karicheri m-karicheri2@ti.com Signed-off-by: WingMan Kwok w-kwok2@ti.com --- arch/arm/include/asm/arch-keystone/emac_defs.h | 240 ++++++++ board/ti/k2hk_evm/board.c | 65 +++ drivers/net/Makefile | 1 + drivers/net/keystone_net.c | 720 ++++++++++++++++++++++++ include/configs/k2hk_evm.h | 35 ++ 5 files changed, 1061 insertions(+) create mode 100644 arch/arm/include/asm/arch-keystone/emac_defs.h create mode 100644 drivers/net/keystone_net.c
diff --git a/arch/arm/include/asm/arch-keystone/emac_defs.h b/arch/arm/include/asm/arch-keystone/emac_defs.h new file mode 100644 index 0000000..0aa2f89 --- /dev/null +++ b/arch/arm/include/asm/arch-keystone/emac_defs.h @@ -0,0 +1,240 @@ +/* + * emac definitions for keystone2 devices + * + * (C) Copyright 2012-2014 + * Texas Instruments Incorporated, <www.ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _EMAC_DEFS_H_ +#define _EMAC_DEFS_H_ + +#include <asm/arch/hardware.h> +#include <asm/io.h> + +#define DEVICE_REG32_R(a) readl(a) +#define DEVICE_REG32_W(a, v) writel(v, a) + +#define EMAC_EMACSL_BASE_ADDR (KS2_PASS_BASE + 0x00090900) +#define EMAC_MDIO_BASE_ADDR (KS2_PASS_BASE + 0x00090300) +#define EMAC_SGMII_BASE_ADDR (KS2_PASS_BASE + 0x00090100) + +#define KEYSTONE2_EMAC_GIG_ENABLE + +#define MAC_ID_BASE_ADDR (KS2_DEVICE_STATE_CTRL_BASE + 0x110) + +#ifdef CONFIG_SOC_K2HK +/* MDIO module input frequency */ +#define EMAC_MDIO_BUS_FREQ (clk_get_rate(pass_pll_clk)) +/* MDIO clock output frequency */ +#define EMAC_MDIO_CLOCK_FREQ 1000000 /* 1.0 MHz */ +#endif + +/* MII Status Register */ +#define MII_STATUS_REG 1 +#define MII_STATUS_LINK_MASK (0x4) + +/* Marvell 88E1111 PHY ID */ +#define PHY_MARVELL_88E1111 (0x01410cc0) + +#define MDIO_CONTROL_IDLE (0x80000000) +#define MDIO_CONTROL_ENABLE (0x40000000) +#define MDIO_CONTROL_FAULT_ENABLE (0x40000) +#define MDIO_CONTROL_FAULT (0x80000) +#define MDIO_USERACCESS0_GO (0x80000000) +#define MDIO_USERACCESS0_WRITE_READ (0x0) +#define MDIO_USERACCESS0_WRITE_WRITE (0x40000000) +#define MDIO_USERACCESS0_ACK (0x20000000) + +#define EMAC_MACCONTROL_MIIEN_ENABLE (0x20) +#define EMAC_MACCONTROL_FULLDUPLEX_ENABLE (0x1) +#define EMAC_MACCONTROL_GIGABIT_ENABLE (1 << 7) +#define EMAC_MACCONTROL_GIGFORCE (1 << 17) +#define EMAC_MACCONTROL_RMIISPEED_100 (1 << 15) + +#define EMAC_MIN_ETHERNET_PKT_SIZE 60 + +struct mac_sl_cfg { + u_int32_t max_rx_len; /* Maximum receive packet length. */ + u_int32_t ctl; /* Control bitfield */ +}; + +/* + * Definition: Control bitfields used in the ctl field of hwGmacSlCfg_t + */ +#define GMACSL_RX_ENABLE_RCV_CONTROL_FRAMES (1 << 24) +#define GMACSL_RX_ENABLE_RCV_SHORT_FRAMES (1 << 23) +#define GMACSL_RX_ENABLE_RCV_ERROR_FRAMES (1 << 22) +#define GMACSL_RX_ENABLE_EXT_CTL (1 << 18) +#define GMACSL_RX_ENABLE_GIG_FORCE (1 << 17) +#define GMACSL_RX_ENABLE_IFCTL_B (1 << 16) +#define GMACSL_RX_ENABLE_IFCTL_A (1 << 15) +#define GMACSL_RX_ENABLE_CMD_IDLE (1 << 11) +#define GMACSL_TX_ENABLE_SHORT_GAP (1 << 10) +#define GMACSL_ENABLE_GIG_MODE (1 << 7) +#define GMACSL_TX_ENABLE_PACE (1 << 6) +#define GMACSL_ENABLE (1 << 5) +#define GMACSL_TX_ENABLE_FLOW_CTL (1 << 4) +#define GMACSL_RX_ENABLE_FLOW_CTL (1 << 3) +#define GMACSL_ENABLE_LOOPBACK (1 << 1) +#define GMACSL_ENABLE_FULL_DUPLEX (1 << 0) + +/* + * DEFINTITION: function return values + */ +#define GMACSL_RET_OK 0 +#define GMACSL_RET_INVALID_PORT -1 +#define GMACSL_RET_WARN_RESET_INCOMPLETE -2 +#define GMACSL_RET_WARN_MAXLEN_TOO_BIG -3 +#define GMACSL_RET_CONFIG_FAIL_RESET_ACTIVE -4 + +/* Register offsets */ +#define CPGMACSL_REG_ID 0x00 +#define CPGMACSL_REG_CTL 0x04 +#define CPGMACSL_REG_STATUS 0x08 +#define CPGMACSL_REG_RESET 0x0c +#define CPGMACSL_REG_MAXLEN 0x10 +#define CPGMACSL_REG_BOFF 0x14 +#define CPGMACSL_REG_RX_PAUSE 0x18 +#define CPGMACSL_REG_TX_PAURSE 0x1c +#define CPGMACSL_REG_EM_CTL 0x20 +#define CPGMACSL_REG_PRI 0x24 + +/* Soft reset register values */ +#define CPGMAC_REG_RESET_VAL_RESET_MASK (1 << 0) +#define CPGMAC_REG_RESET_VAL_RESET (1 << 0) + +/* Maxlen register values */ +#define CPGMAC_REG_MAXLEN_LEN 0x3fff + +/* Control bitfields */ +#define CPSW_CTL_P2_PASS_PRI_TAGGED (1 << 5) +#define CPSW_CTL_P1_PASS_PRI_TAGGED (1 << 4) +#define CPSW_CTL_P0_PASS_PRI_TAGGED (1 << 3) +#define CPSW_CTL_P0_ENABLE (1 << 2) +#define CPSW_CTL_VLAN_AWARE (1 << 1) +#define CPSW_CTL_FIFO_LOOPBACK (1 << 0) + +#define DEVICE_CPSW_NUM_PORTS 5 /* 5 switch ports */ +#define DEVICE_CPSW_BASE (0x02090800) +#define target_get_switch_ctl() CPSW_CTL_P0_ENABLE /* Enable port 0 */ +#define SWITCH_MAX_PKT_SIZE 9000 + +/* Register offsets */ +#define CPSW_REG_CTL 0x004 +#define CPSW_REG_STAT_PORT_EN 0x00c +#define CPSW_REG_MAXLEN 0x040 +#define CPSW_REG_ALE_CONTROL 0x608 +#define CPSW_REG_ALE_PORTCTL(x) (0x640 + (x)*4) + +/* Register values */ +#define CPSW_REG_VAL_STAT_ENABLE_ALL 0xf +#define CPSW_REG_VAL_ALE_CTL_RESET_AND_ENABLE ((u_int32_t)0xc0000000) +#define CPSW_REG_VAL_ALE_CTL_BYPASS ((u_int32_t)0x00000010) +#define CPSW_REG_VAL_PORTCTL_FORWARD_MODE 0x3 + +#define SGMII_REG_STATUS_LOCK BIT(4) +#define SGMII_REG_STATUS_LINK BIT(0) +#define SGMII_REG_STATUS_AUTONEG BIT(2) +#define SGMII_REG_CONTROL_AUTONEG BIT(0) +#define SGMII_REG_CONTROL_MASTER BIT(5) +#define SGMII_REG_MR_ADV_ENABLE BIT(0) +#define SGMII_REG_MR_ADV_LINK BIT(15) +#define SGMII_REG_MR_ADV_FULL_DUPLEX BIT(12) +#define SGMII_REG_MR_ADV_GIG_MODE BIT(11) + +#define SGMII_LINK_MAC_MAC_AUTONEG 0 +#define SGMII_LINK_MAC_PHY 1 +#define SGMII_LINK_MAC_MAC_FORCED 2 +#define SGMII_LINK_MAC_FIBER 3 +#define SGMII_LINK_MAC_PHY_FORCED 4 + +#define TARGET_SGMII_BASE KS2_PASS_BASE + 0x00090100 +#define TARGET_SGMII_BASE_ADDRESSES {KS2_PASS_BASE + 0x00090100, \ + KS2_PASS_BASE + 0x00090200, \ + KS2_PASS_BASE + 0x00090400, \ + KS2_PASS_BASE + 0x00090500} + +#define SGMII_OFFSET(x) ((x <= 1) ? (x * 0x100) : ((x * 0x100) + 0x100)) + +/* + * SGMII registers + */ +#define SGMII_IDVER_REG(x) (TARGET_SGMII_BASE + SGMII_OFFSET(x) + 0x000) +#define SGMII_SRESET_REG(x) (TARGET_SGMII_BASE + SGMII_OFFSET(x) + 0x004) +#define SGMII_CTL_REG(x) (TARGET_SGMII_BASE + SGMII_OFFSET(x) + 0x010) +#define SGMII_STATUS_REG(x) (TARGET_SGMII_BASE + SGMII_OFFSET(x) + 0x014) +#define SGMII_MRADV_REG(x) (TARGET_SGMII_BASE + SGMII_OFFSET(x) + 0x018) +#define SGMII_LPADV_REG(x) (TARGET_SGMII_BASE + SGMII_OFFSET(x) + 0x020) +#define SGMII_TXCFG_REG(x) (TARGET_SGMII_BASE + SGMII_OFFSET(x) + 0x030) +#define SGMII_RXCFG_REG(x) (TARGET_SGMII_BASE + SGMII_OFFSET(x) + 0x034) +#define SGMII_AUXCFG_REG(x) (TARGET_SGMII_BASE + SGMII_OFFSET(x) + 0x038) + +#define DEVICE_EMACSL_BASE(x) (KS2_PASS_BASE + 0x00090900 + (x) * 0x040) +#define DEVICE_N_GMACSL_PORTS 4 +#define DEVICE_EMACSL_RESET_POLL_COUNT 100 + +#define DEVICE_PSTREAM_CFG_REG_ADDR (KS2_PASS_BASE + 0x604) + +#ifdef CONFIG_SOC_K2HK +#define DEVICE_PSTREAM_CFG_REG_VAL_ROUTE_CPPI 0x06060606 +#endif + +#define hw_config_streaming_switch() \ + DEVICE_REG32_W(DEVICE_PSTREAM_CFG_REG_ADDR, \ + DEVICE_PSTREAM_CFG_REG_VAL_ROUTE_CPPI); + +/* EMAC MDIO Registers Structure */ +struct mdio_regs { + dv_reg version; + dv_reg control; + dv_reg alive; + dv_reg link; + dv_reg linkintraw; + dv_reg linkintmasked; + u_int8_t rsvd0[8]; + dv_reg userintraw; + dv_reg userintmasked; + dv_reg userintmaskset; + dv_reg userintmaskclear; + u_int8_t rsvd1[80]; + dv_reg useraccess0; + dv_reg userphysel0; + dv_reg useraccess1; + dv_reg userphysel1; +}; + +/* Ethernet MAC Registers Structure */ +struct emac_regs { + dv_reg idver; + dv_reg maccontrol; + dv_reg macstatus; + dv_reg soft_reset; + dv_reg rx_maxlen; + u32 rsvd0; + dv_reg rx_pause; + dv_reg tx_pause; + dv_reg emcontrol; + dv_reg pri_map; + u32 rsvd1[6]; +}; + +#define SGMII_ACCESS(port, reg) \ + *((volatile unsigned int *)(sgmiis[port] + reg)) + +struct eth_priv_t { + char int_name[32]; + int rx_flow; + int phy_addr; + int slave_port; + int sgmii_link_type; +}; + +extern struct eth_priv_t eth_priv_cfg[]; + +int keystone2_emac_initialize(struct eth_priv_t *eth_priv); +void sgmii_serdes_setup_156p25mhz(void); +void sgmii_serdes_shutdown(void); + +#endif /* _EMAC_DEFS_H_ */ diff --git a/board/ti/k2hk_evm/board.c b/board/ti/k2hk_evm/board.c index aef67f4..dc39139 100644 --- a/board/ti/k2hk_evm/board.c +++ b/board/ti/k2hk_evm/board.c @@ -17,6 +17,7 @@ #include <asm/io.h> #include <asm/mach-types.h> #include <asm/arch/nand_defs.h> +#include <asm/arch/emac_defs.h> #include <asm/arch/psc_defs.h>
DECLARE_GLOBAL_DATA_PTR; @@ -70,6 +71,70 @@ int dram_init(void) return 0; }
+#ifdef CONFIG_DRIVER_TI_KEYSTONE_NET +struct eth_priv_t eth_priv_cfg[] = { + { + .int_name = "K2HK_EMAC", + .rx_flow = 22, + .phy_addr = 0, + .slave_port = 1, + .sgmii_link_type = SGMII_LINK_MAC_PHY, + }, + { + .int_name = "K2HK_EMAC1", + .rx_flow = 23, + .phy_addr = 1, + .slave_port = 2, + .sgmii_link_type = SGMII_LINK_MAC_PHY, + }, + { + .int_name = "K2HK_EMAC2", + .rx_flow = 24, + .phy_addr = 2, + .slave_port = 3, + .sgmii_link_type = SGMII_LINK_MAC_MAC_FORCED, + }, + { + .int_name = "K2HK_EMAC3", + .rx_flow = 25, + .phy_addr = 3, + .slave_port = 4, + .sgmii_link_type = SGMII_LINK_MAC_MAC_FORCED, + }, +}; + +int get_eth_env_param(char *env_name) +{ + char *env; + int res = -1; + + env = getenv(env_name); + if (env) + res = simple_strtol(env, NULL, 0); + + return res; +} + +int board_eth_init(bd_t *bis) +{ + int j; + int res; + char link_type_name[32]; + + for (j = 0; j < (sizeof(eth_priv_cfg) / sizeof(struct eth_priv_t)); + j++) { + sprintf(link_type_name, "sgmii%d_link_type", j); + res = get_eth_env_param(link_type_name); + if (res >= 0) + eth_priv_cfg[j].sgmii_link_type = res; + + keystone2_emac_initialize(ð_priv_cfg[j]); + } + + return 0; +} +#endif + /* Byte swap the 32-bit data if the device is BE */ int cpu_to_bus(u32 *ptr, u32 length) { diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 7f9ce90..6005f7e 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -30,6 +30,7 @@ obj-$(CONFIG_FTMAC110) += ftmac110.o obj-$(CONFIG_FTMAC100) += ftmac100.o obj-$(CONFIG_GRETH) += greth.o obj-$(CONFIG_INCA_IP_SWITCH) += inca-ip_sw.o +obj-$(CONFIG_DRIVER_TI_KEYSTONE_NET) += keystone_net.o obj-$(CONFIG_DRIVER_KS8695ETH) += ks8695eth.o obj-$(CONFIG_KS8851_MLL) += ks8851_mll.o obj-$(CONFIG_LAN91C96) += lan91c96.o diff --git a/drivers/net/keystone_net.c b/drivers/net/keystone_net.c new file mode 100644 index 0000000..5d954c4 --- /dev/null +++ b/drivers/net/keystone_net.c @@ -0,0 +1,720 @@ +/* + * Ethernet driver for TI K2HK EVM. + * + * (C) Copyright 2012-2014 + * Texas Instruments Incorporated, <www.ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#include <common.h> +#include <command.h> + +#include <net.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; + +unsigned int emac_open; +static unsigned int sys_has_mdio = 1; + +#ifdef KEYSTONE2_EMAC_GIG_ENABLE +#define emac_gigabit_enable(x) keystone2_eth_gigabit_enable(x) +#else +#define emac_gigabit_enable(x) /* no gigabit to enable */ +#endif + +#define RX_BUFF_NUMS 24 +#define RX_BUFF_LEN 1520 +#define MAX_SIZE_STREAM_BUFFER RX_BUFF_LEN + +static u8 rx_buffs[RX_BUFF_NUMS * RX_BUFF_LEN] __aligned(16); + +struct rx_buff_desc net_rx_buffs = { + .buff_ptr = rx_buffs, + .num_buffs = RX_BUFF_NUMS, + .buff_len = RX_BUFF_LEN, + .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; + +int keystone2_eth_read_mac_addr(struct eth_device *dev) +{ + struct eth_priv_t *eth_priv; + u32 maca = 0; + u32 macb = 0; + + eth_priv = (struct eth_priv_t *)dev->priv; + + /* Read the e-fuse mac address */ + if (eth_priv->slave_port == 1) { + maca = __raw_readl(MAC_ID_BASE_ADDR); + macb = __raw_readl(MAC_ID_BASE_ADDR + 4); + } + + dev->enetaddr[0] = (macb >> 8) & 0xff; + dev->enetaddr[1] = (macb >> 0) & 0xff; + dev->enetaddr[2] = (maca >> 24) & 0xff; + dev->enetaddr[3] = (maca >> 16) & 0xff; + dev->enetaddr[4] = (maca >> 8) & 0xff; + dev->enetaddr[5] = (maca >> 0) & 0xff; + + return 0; +} + +static void keystone2_eth_mdio_enable(void) +{ + u_int32_t clkdiv; + + clkdiv = (EMAC_MDIO_BUS_FREQ / EMAC_MDIO_CLOCK_FREQ) - 1; + + writel((clkdiv & 0xffff) | + MDIO_CONTROL_ENABLE | + MDIO_CONTROL_FAULT | + MDIO_CONTROL_FAULT_ENABLE, + &adap_mdio->control); + + while (readl(&adap_mdio->control) & MDIO_CONTROL_IDLE) + ; +} + +/* 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) +{ + int tmp; + + while (readl(&adap_mdio->useraccess0) & MDIO_USERACCESS0_GO) + ; + + writel(MDIO_USERACCESS0_GO | + MDIO_USERACCESS0_WRITE_READ | + ((reg_num & 0x1f) << 21) | + ((phy_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; + } + + *data = -1; + return -1; +} + +/* + * Write to a PHY register via MDIO inteface. + * Blocks until operation is complete. + */ +int keystone2_eth_phy_write(u_int8_t phy_addr, u_int8_t reg_num, u_int16_t data) +{ + 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); + + /* Wait for command to complete */ + while (readl(&adap_mdio->useraccess0) & MDIO_USERACCESS0_GO) + ; + + 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) +{ + u_int16_t data; + 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 */ + return; + } + + /* + * 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)) | + EMAC_MACCONTROL_GIGFORCE | EMAC_MACCONTROL_GIGABIT_ENABLE, + &(adap_emac[eth_priv->slave_port - 1].maccontrol)) + ; +} + +int keystone_sgmii_link_status(int port) +{ + u32 status = 0; + + status = __raw_readl(SGMII_STATUS_REG(port)); + + return 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) +{ + unsigned int i, status, mask; + unsigned int mr_adv_ability, control; + + switch (interface) { + case SGMII_LINK_MAC_MAC_AUTONEG: + mr_adv_ability = (SGMII_REG_MR_ADV_ENABLE | + SGMII_REG_MR_ADV_LINK | + SGMII_REG_MR_ADV_FULL_DUPLEX | + SGMII_REG_MR_ADV_GIG_MODE); + control = (SGMII_REG_CONTROL_MASTER | + SGMII_REG_CONTROL_AUTONEG); + + break; + case SGMII_LINK_MAC_PHY: + case SGMII_LINK_MAC_PHY_FORCED: + mr_adv_ability = SGMII_REG_MR_ADV_ENABLE; + control = SGMII_REG_CONTROL_AUTONEG; + + break; + case SGMII_LINK_MAC_MAC_FORCED: + mr_adv_ability = (SGMII_REG_MR_ADV_ENABLE | + SGMII_REG_MR_ADV_LINK | + SGMII_REG_MR_ADV_FULL_DUPLEX | + SGMII_REG_MR_ADV_GIG_MODE); + control = SGMII_REG_CONTROL_MASTER; + + break; + case SGMII_LINK_MAC_FIBER: + mr_adv_ability = 0x20; + control = SGMII_REG_CONTROL_AUTONEG; + + break; + default: + mr_adv_ability = SGMII_REG_MR_ADV_ENABLE; + control = SGMII_REG_CONTROL_AUTONEG; + } + + __raw_writel(0, SGMII_CTL_REG(port)); + + /* + * Wait for the SerDes pll to lock, + * but don't trap if lock is never read + */ + for (i = 0; i < 1000; i++) { + udelay(2000); + status = __raw_readl(SGMII_STATUS_REG(port)); + if ((status & SGMII_REG_STATUS_LOCK) != 0) + break; + } + + __raw_writel(mr_adv_ability, SGMII_MRADV_REG(port)); + __raw_writel(control, SGMII_CTL_REG(port)); + + + mask = SGMII_REG_STATUS_LINK; + + 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) + break; + } + + return 0; +} + +int mac_sl_reset(u32 port) +{ + u32 i, v; + + if (port >= DEVICE_N_GMACSL_PORTS) + return GMACSL_RET_INVALID_PORT; + + /* Set the soft reset bit */ + DEVICE_REG32_W(DEVICE_EMACSL_BASE(port) + + CPGMACSL_REG_RESET, CPGMAC_REG_RESET_VAL_RESET); + + /* Wait for the bit to clear */ + for (i = 0; i < DEVICE_EMACSL_RESET_POLL_COUNT; i++) { + v = DEVICE_REG32_R(DEVICE_EMACSL_BASE(port) + + CPGMACSL_REG_RESET); + if ((v & CPGMAC_REG_RESET_VAL_RESET_MASK) != + CPGMAC_REG_RESET_VAL_RESET) + return GMACSL_RET_OK; + } + + /* Timeout on the reset */ + return GMACSL_RET_WARN_RESET_INCOMPLETE; +} + +int mac_sl_config(u_int16_t port, struct mac_sl_cfg *cfg) +{ + u32 v, i; + int ret = GMACSL_RET_OK; + + if (port >= DEVICE_N_GMACSL_PORTS) + return GMACSL_RET_INVALID_PORT; + + if (cfg->max_rx_len > CPGMAC_REG_MAXLEN_LEN) { + cfg->max_rx_len = CPGMAC_REG_MAXLEN_LEN; + ret = GMACSL_RET_WARN_MAXLEN_TOO_BIG; + } + + /* Must wait if the device is undergoing reset */ + for (i = 0; i < DEVICE_EMACSL_RESET_POLL_COUNT; i++) { + v = DEVICE_REG32_R(DEVICE_EMACSL_BASE(port) + + CPGMACSL_REG_RESET); + if ((v & CPGMAC_REG_RESET_VAL_RESET_MASK) != + CPGMAC_REG_RESET_VAL_RESET) + break; + } + + if (i == DEVICE_EMACSL_RESET_POLL_COUNT) + return GMACSL_RET_CONFIG_FAIL_RESET_ACTIVE; + + DEVICE_REG32_W(DEVICE_EMACSL_BASE(port) + CPGMACSL_REG_MAXLEN, + cfg->max_rx_len); + + DEVICE_REG32_W(DEVICE_EMACSL_BASE(port) + CPGMACSL_REG_CTL, + cfg->ctl); + + return ret; +} + +int ethss_config(u32 ctl, u32 max_pkt_size) +{ + u32 i; + + /* Max length register */ + DEVICE_REG32_W(DEVICE_CPSW_BASE + CPSW_REG_MAXLEN, max_pkt_size); + + /* Control register */ + DEVICE_REG32_W(DEVICE_CPSW_BASE + CPSW_REG_CTL, ctl); + + /* All statistics enabled by default */ + DEVICE_REG32_W(DEVICE_CPSW_BASE + CPSW_REG_STAT_PORT_EN, + CPSW_REG_VAL_STAT_ENABLE_ALL); + + /* Reset and enable the ALE */ + DEVICE_REG32_W(DEVICE_CPSW_BASE + CPSW_REG_ALE_CONTROL, + CPSW_REG_VAL_ALE_CTL_RESET_AND_ENABLE | + CPSW_REG_VAL_ALE_CTL_BYPASS); + + /* All ports put into forward mode */ + for (i = 0; i < DEVICE_CPSW_NUM_PORTS; i++) + DEVICE_REG32_W(DEVICE_CPSW_BASE + CPSW_REG_ALE_PORTCTL(i), + CPSW_REG_VAL_PORTCTL_FORWARD_MODE); + + return 0; +} + +int ethss_start(void) +{ + int i; + struct mac_sl_cfg cfg; + + cfg.max_rx_len = MAX_SIZE_STREAM_BUFFER; + cfg.ctl = GMACSL_ENABLE | GMACSL_RX_ENABLE_EXT_CTL; + + for (i = 0; i < DEVICE_N_GMACSL_PORTS; i++) { + mac_sl_reset(i); + mac_sl_config(i, &cfg); + } + + return 0; +} + +int ethss_stop(void) +{ + int i; + + for (i = 0; i < DEVICE_N_GMACSL_PORTS; i++) + mac_sl_reset(i); + + return 0; +} + +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); +} + +/* 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; + + debug("+ emac_open\n"); + + net_rx_buffs.rx_flow = eth_priv->rx_flow; + + 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(); + + keystone_sgmii_config(eth_priv->slave_port - 1, + eth_priv->sgmii_link_type); + + udelay(10000); + + /* On chip switch configuration */ + ethss_config(target_get_switch_ctl(), SWITCH_MAX_PKT_SIZE); + + /* TODO: add error handling code */ + if (qm_init()) { + printf("ERROR: qm_init()\n"); + return -1; + } + if (netcp_init(&net_rx_buffs)) { + qm_close(); + printf("ERROR: netcp_init()\n"); + return -1; + } + + /* + * Streaming switch configuration. If not present this + * statement is defined to void in target.h. + * If present this is usually defined to a series of register writes + */ + 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(); + qm_close(); + return -1; + } + } + + emac_gigabit_enable(dev); + + ethss_start(); + + debug("- emac_open\n"); + + emac_open = 1; + + return 0; +} + +/* Eth device close */ +void keystone2_eth_close(struct eth_device *dev) +{ + debug("+ emac_close\n"); + + if (!emac_open) + return; + + ethss_stop(); + + netcp_close(); + qm_close(); + + 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 + */ +static int keystone2_eth_send_packet(struct eth_device *dev, + void *packet, int length) +{ + int ret_status = -1; + struct eth_priv_t *eth_priv = (struct eth_priv_t *)dev->priv; + + tx_send_loop = 0; + + if (keystone_get_link_status(dev) == 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; +} + +/* + * This function handles receipt of a packet from the network + */ +static int keystone2_eth_rcv_packet(struct eth_device *dev) +{ + void *hd; + int pkt_size; + u32 *pkt; + + hd = netcp_recv(&pkt, &pkt_size); + if (hd == NULL) + return 0; + + NetReceive((uchar *)pkt, pkt_size); + + netcp_release_rxhd(hd); + + return pkt_size; +} + +/* + * This function initializes the EMAC hardware. + */ +int keystone2_emac_initialize(struct eth_priv_t *eth_priv) +{ + struct eth_device *dev; + + dev = malloc(sizeof(struct eth_device)); + if (dev == NULL) + return -1; + + memset(dev, 0, sizeof(struct eth_device)); + + strcpy(dev->name, eth_priv->int_name); + dev->priv = eth_priv; + + keystone2_eth_read_mac_addr(dev); + + dev->iobase = 0; + dev->init = keystone2_eth_open; + dev->halt = keystone2_eth_close; + dev->send = keystone2_eth_send_packet; + dev->recv = keystone2_eth_rcv_packet; + + eth_register(dev); + + return 0; +} + +#define reg_rmw(addr, value, mask) \ + writel(((readl(addr) & (~(mask))) | (value)), (addr)) + +void sgmii_serdes_setup_156p25mhz() +{ + 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. + */ + reg_rmw(0x0232a000, 0x00800000, 0xffff0000); + reg_rmw(0x0232a014, 0x00008282, 0x0000ffff); + reg_rmw(0x0232a060, 0x00142438, 0x00ffffff); + reg_rmw(0x0232a064, 0x00c3c700, 0x00ffff00); + reg_rmw(0x0232a078, 0x0000c000, 0x0000ff00); + + reg_rmw(0x0232a204, 0x38000080, 0xff0000ff); + reg_rmw(0x0232a208, 0x00000000, 0x000000ff); + reg_rmw(0x0232a20c, 0x02000000, 0xff000000); + reg_rmw(0x0232a210, 0x1b000000, 0xff000000); + reg_rmw(0x0232a214, 0x00006fb8, 0x0000ffff); + reg_rmw(0x0232a218, 0x758000e4, 0xffff00ff); + reg_rmw(0x0232a2ac, 0x00004400, 0x0000ff00); + reg_rmw(0x0232a22c, 0x00200800, 0x00ffff00); + reg_rmw(0x0232a280, 0x00820082, 0x00ff00ff); + reg_rmw(0x0232a284, 0x1d0f0385, 0xffffffff); + + reg_rmw(0x0232a404, 0x38000080, 0xff0000ff); + reg_rmw(0x0232a408, 0x00000000, 0x000000ff); + reg_rmw(0x0232a40c, 0x02000000, 0xff000000); + reg_rmw(0x0232a410, 0x1b000000, 0xff000000); + reg_rmw(0x0232a414, 0x00006fb8, 0x0000ffff); + reg_rmw(0x0232a418, 0x758000e4, 0xffff00ff); + reg_rmw(0x0232a4ac, 0x00004400, 0x0000ff00); + reg_rmw(0x0232a42c, 0x00200800, 0x00ffff00); + reg_rmw(0x0232a480, 0x00820082, 0x00ff00ff); + reg_rmw(0x0232a484, 0x1d0f0385, 0xffffffff); + + reg_rmw(0x0232a604, 0x38000080, 0xff0000ff); + reg_rmw(0x0232a608, 0x00000000, 0x000000ff); + reg_rmw(0x0232a60c, 0x02000000, 0xff000000); + reg_rmw(0x0232a610, 0x1b000000, 0xff000000); + reg_rmw(0x0232a614, 0x00006fb8, 0x0000ffff); + reg_rmw(0x0232a618, 0x758000e4, 0xffff00ff); + reg_rmw(0x0232a6ac, 0x00004400, 0x0000ff00); + reg_rmw(0x0232a62c, 0x00200800, 0x00ffff00); + reg_rmw(0x0232a680, 0x00820082, 0x00ff00ff); + reg_rmw(0x0232a684, 0x1d0f0385, 0xffffffff); + + reg_rmw(0x0232a804, 0x38000080, 0xff0000ff); + reg_rmw(0x0232a808, 0x00000000, 0x000000ff); + reg_rmw(0x0232a80c, 0x02000000, 0xff000000); + reg_rmw(0x0232a810, 0x1b000000, 0xff000000); + reg_rmw(0x0232a814, 0x00006fb8, 0x0000ffff); + reg_rmw(0x0232a818, 0x758000e4, 0xffff00ff); + reg_rmw(0x0232a8ac, 0x00004400, 0x0000ff00); + reg_rmw(0x0232a82c, 0x00200800, 0x00ffff00); + reg_rmw(0x0232a880, 0x00820082, 0x00ff00ff); + reg_rmw(0x0232a884, 0x1d0f0385, 0xffffffff); + + reg_rmw(0x0232aa00, 0x00000800, 0x0000ff00); + reg_rmw(0x0232aa08, 0x38a20000, 0xffff0000); + reg_rmw(0x0232aa30, 0x008a8a00, 0x00ffff00); + reg_rmw(0x0232aa84, 0x00000600, 0x0000ff00); + reg_rmw(0x0232aa94, 0x10000000, 0xff000000); + reg_rmw(0x0232aaa0, 0x81000000, 0xff000000); + reg_rmw(0x0232aabc, 0xff000000, 0xff000000); + reg_rmw(0x0232aac0, 0x0000008b, 0x000000ff); + reg_rmw(0x0232ab08, 0x583f0000, 0xffff0000); + reg_rmw(0x0232ab0c, 0x0000004e, 0x000000ff); + reg_rmw(0x0232a000, 0x00000003, 0x000000ff); + reg_rmw(0x0232aa00, 0x0000005f, 0x000000ff); + + reg_rmw(0x0232aa48, 0x00fd8c00, 0x00ffff00); + reg_rmw(0x0232aa54, 0x002fec72, 0x00ffffff); + reg_rmw(0x0232aa58, 0x00f92100, 0xffffff00); + reg_rmw(0x0232aa5c, 0x00040060, 0xffffffff); + reg_rmw(0x0232aa60, 0x00008000, 0xffffffff); + reg_rmw(0x0232aa64, 0x0c581220, 0xffffffff); + reg_rmw(0x0232aa68, 0xe13b0602, 0xffffffff); + reg_rmw(0x0232aa6c, 0xb8074cc1, 0xffffffff); + reg_rmw(0x0232aa70, 0x3f02e989, 0xffffffff); + reg_rmw(0x0232aa74, 0x00000001, 0x000000ff); + reg_rmw(0x0232ab20, 0x00370000, 0x00ff0000); + reg_rmw(0x0232ab1c, 0x37000000, 0xff000000); + reg_rmw(0x0232ab20, 0x0000005d, 0x000000ff); + + /*Bring SerDes out of Reset if SerDes is Shutdown & is in Reset Mode*/ + reg_rmw(0x0232a010, 0x00000000, 1 << 28); + + /* Enable TX and RX via the LANExCTL_STS 0x0000 + x*4 */ + reg_rmw(0x0232a228, 0x00000000, 1 << 29); + writel(0xF800F8C0, 0x0232bfe0); + reg_rmw(0x0232a428, 0x00000000, 1 << 29); + writel(0xF800F8C0, 0x0232bfe4); + reg_rmw(0x0232a628, 0x00000000, 1 << 29); + writel(0xF800F8C0, 0x0232bfe8); + reg_rmw(0x0232a828, 0x00000000, 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--) + ; + + for (cnt = 10000; cnt > 0 && ((readl(0x02090514) & 0x10) == 0); cnt--) + ; + + udelay(45000); +} + +void sgmii_serdes_shutdown() +{ + /* + * shutdown SerDes hardware. SerDes hardware vendor published only + * register addresses and their values. So had to use hardcoded + * values below. + */ + reg_rmw(0x0232bfe0, 0, 3 << 29 | 3 << 13); + reg_rmw(0x02320228, 1 << 29, 1 << 29); + reg_rmw(0x0232bfe4, 0, 3 << 29 | 3 << 13); + reg_rmw(0x02320428, 1 << 29, 1 << 29); + reg_rmw(0x0232bfe8, 0, 3 << 29 | 3 << 13); + reg_rmw(0x02320628, 1 << 29, 1 << 29); + reg_rmw(0x0232bfec, 0, 3 << 29 | 3 << 13); + reg_rmw(0x02320828, 1 << 29, 1 << 29); + + reg_rmw(0x02320034, 0, 3 << 29); + reg_rmw(0x02320010, 1 << 28, 1 << 28); +} + diff --git a/include/configs/k2hk_evm.h b/include/configs/k2hk_evm.h index 6bdeb90..28ee3a4 100644 --- a/include/configs/k2hk_evm.h +++ b/include/configs/k2hk_evm.h @@ -111,6 +111,20 @@ #define CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS 20 #define CONFIG_ENV_EEPROM_IS_ON_I2C
+/* Network Configuration */ +#define CONFIG_DRIVER_TI_KEYSTONE_NET +#define CONFIG_MII +#define CONFIG_BOOTP_DEFAULT +#define CONFIG_BOOTP_DNS +#define CONFIG_BOOTP_DNS2 +#define CONFIG_BOOTP_SEND_HOSTNAME +#define CONFIG_NET_RETRY_COUNT 32 +#define CONFIG_NET_MULTI +#define CONFIG_GET_LINK_STATUS_ATTEMPTS 5 +#define CONFIG_SYS_SGMII_REFCLK_MHZ 312 +#define CONFIG_SYS_SGMII_LINERATE_MHZ 1250 +#define CONFIG_SYS_SGMII_RATESCALE 2 + /* NAND Configuration */ #define CONFIG_NAND_DAVINCI #define CONFIG_SYS_NAND_CS 2 @@ -175,24 +189,45 @@ "addr_fs=0x82000000\0" \ "addr_ubi=0x82000000\0" \ "fdt_high=0xffffffff\0" \ + "name_fdt=uImage-k2hk-evm.dtb\0" \ + "name_fs=arago-console-image.cpio.gz\0" \ + "name_kern=uImage-keystone-evm.bin\0" \ + "name_mon=skern-keystone-evm.bin\0" \ + "name_uboot=u-boot-spi-keystone-evm.gph\0" \ + "name_ubi=keystone-evm-ubifs.ubi\0" \ "run_mon=mon_install ${addr_mon}\0" \ "run_kern=bootm ${addr_kern} - ${addr_fdt}\0" \ + "init_net=run args_all args_net\0" \ "init_ubi=run args_all args_ubi; " \ "ubi part ubifs; ubifsmount boot\0" \ + "get_fdt_net=dhcp ${addr_fdt} ${tftp_root}/${name_fdt}\0" \ "get_fdt_ubi=ubifsload ${addr_fdt} ${name_fdt}\0" \ + "get_kern_net=dhcp ${addr_kern} ${tftp_root}/${name_kern}\0" \ "get_kern_ubi=ubifsload ${addr_kern} ${name_kern}\0" \ + "get_mon_net=dhcp ${addr_mon} ${tftp_root}/${name_mon}\0" \ "get_mon_ubi=ubifsload ${addr_mon} ${name_mon}\0" \ + "get_uboot_net=dhcp ${addr_uboot} ${tftp_root}/${name_uboot}\0" \ "burn_uboot=sf probe; sf erase 0 0x100000; " \ "sf write ${addr_uboot} 0 ${filesize}\0" \ "args_all=setenv bootargs console=ttyS0,115200n8 rootwait=1\0" \ "args_ubi=setenv bootargs ${bootargs} rootfstype=ubifs " \ "root=ubi0:rootfs rootflags=sync rw ubi.mtd=2,2048\0" \ + "args_net=setenv bootargs ${bootargs} rootfstype=nfs " \ + "root=/dev/nfs rw nfsroot=${serverip}:${nfs_root}," \ + "${nfs_options} ip=dhcp\0" \ + "nfs_options=v3,tcp,rsize=4096,wsize=4096\0" \ + "get_fdt_ramfs=dhcp ${addr_fdt} ${tftp_root}/${name_fdt}\0" \ + "get_kern_ramfs=dhcp ${addr_kern} ${tftp_root}/${name_kern}\0" \ + "get_mon_ramfs=dhcp ${addr_mon} ${tftp_root}/${name_mon}\0" \ + "get_fs_ramfs=dhcp ${addr_fs} ${tftp_root}/${name_fs}\0" \ + "get_ubi_net=dhcp ${addr_ubi} ${tftp_root}/${name_ubi}\0" \ "burn_ubi=nand erase.part ubifs; " \ "nand write ${addr_ubi} ubifs ${filesize}\0" \ "init_ramfs=run args_all args_ramfs get_fs_ramfs\0" \ "args_ramfs=setenv bootargs ${bootargs} earlyprintk " \ "rdinit=/sbin/init rw root=/dev/ram0 " \ "initrd=0x802000000,9M\0" \ + "no_post=1\0" \ "mtdparts=mtdparts=davinci_nand.0:" \ "1024k(bootloader)ro,512k(params)ro,522752k(ubifs)\0" #define CONFIG_BOOTCOMMAND \