diff options
Diffstat (limited to 'qemu/roms/u-boot/board/ti/am335x/board.c')
| -rw-r--r-- | qemu/roms/u-boot/board/ti/am335x/board.c | 701 |
1 files changed, 701 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/board/ti/am335x/board.c b/qemu/roms/u-boot/board/ti/am335x/board.c new file mode 100644 index 000000000..da780edb8 --- /dev/null +++ b/qemu/roms/u-boot/board/ti/am335x/board.c @@ -0,0 +1,701 @@ +/* + * board.c + * + * Board functions for TI AM335X based boards + * + * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <errno.h> +#include <spl.h> +#include <asm/arch/cpu.h> +#include <asm/arch/hardware.h> +#include <asm/arch/omap.h> +#include <asm/arch/ddr_defs.h> +#include <asm/arch/clock.h> +#include <asm/arch/gpio.h> +#include <asm/arch/mmc_host_def.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/mem.h> +#include <asm/io.h> +#include <asm/emif.h> +#include <asm/gpio.h> +#include <i2c.h> +#include <miiphy.h> +#include <cpsw.h> +#include <power/tps65217.h> +#include <power/tps65910.h> +#include <environment.h> +#include <watchdog.h> +#include <environment.h> +#include "board.h" + +DECLARE_GLOBAL_DATA_PTR; + +/* GPIO that controls power to DDR on EVM-SK */ +#define GPIO_DDR_VTT_EN 7 + +static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; + +/* + * Read header information from EEPROM into global structure. + */ +static int read_eeprom(struct am335x_baseboard_id *header) +{ + /* Check if baseboard eeprom is available */ + if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) { + puts("Could not probe the EEPROM; something fundamentally " + "wrong on the I2C bus.\n"); + return -ENODEV; + } + + /* read the eeprom using i2c */ + if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)header, + sizeof(struct am335x_baseboard_id))) { + puts("Could not read the EEPROM; something fundamentally" + " wrong on the I2C bus.\n"); + return -EIO; + } + + if (header->magic != 0xEE3355AA) { + /* + * read the eeprom using i2c again, + * but use only a 1 byte address + */ + if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header, + sizeof(struct am335x_baseboard_id))) { + puts("Could not read the EEPROM; something " + "fundamentally wrong on the I2C bus.\n"); + return -EIO; + } + + if (header->magic != 0xEE3355AA) { + printf("Incorrect magic number (0x%x) in EEPROM\n", + header->magic); + return -EINVAL; + } + } + + return 0; +} + +#ifndef CONFIG_SKIP_LOWLEVEL_INIT +static const struct ddr_data ddr2_data = { + .datardsratio0 = ((MT47H128M16RT25E_RD_DQS<<30) | + (MT47H128M16RT25E_RD_DQS<<20) | + (MT47H128M16RT25E_RD_DQS<<10) | + (MT47H128M16RT25E_RD_DQS<<0)), + .datawdsratio0 = ((MT47H128M16RT25E_WR_DQS<<30) | + (MT47H128M16RT25E_WR_DQS<<20) | + (MT47H128M16RT25E_WR_DQS<<10) | + (MT47H128M16RT25E_WR_DQS<<0)), + .datawiratio0 = ((MT47H128M16RT25E_PHY_WRLVL<<30) | + (MT47H128M16RT25E_PHY_WRLVL<<20) | + (MT47H128M16RT25E_PHY_WRLVL<<10) | + (MT47H128M16RT25E_PHY_WRLVL<<0)), + .datagiratio0 = ((MT47H128M16RT25E_PHY_GATELVL<<30) | + (MT47H128M16RT25E_PHY_GATELVL<<20) | + (MT47H128M16RT25E_PHY_GATELVL<<10) | + (MT47H128M16RT25E_PHY_GATELVL<<0)), + .datafwsratio0 = ((MT47H128M16RT25E_PHY_FIFO_WE<<30) | + (MT47H128M16RT25E_PHY_FIFO_WE<<20) | + (MT47H128M16RT25E_PHY_FIFO_WE<<10) | + (MT47H128M16RT25E_PHY_FIFO_WE<<0)), + .datawrsratio0 = ((MT47H128M16RT25E_PHY_WR_DATA<<30) | + (MT47H128M16RT25E_PHY_WR_DATA<<20) | + (MT47H128M16RT25E_PHY_WR_DATA<<10) | + (MT47H128M16RT25E_PHY_WR_DATA<<0)), +}; + +static const struct cmd_control ddr2_cmd_ctrl_data = { + .cmd0csratio = MT47H128M16RT25E_RATIO, + .cmd0iclkout = MT47H128M16RT25E_INVERT_CLKOUT, + + .cmd1csratio = MT47H128M16RT25E_RATIO, + .cmd1iclkout = MT47H128M16RT25E_INVERT_CLKOUT, + + .cmd2csratio = MT47H128M16RT25E_RATIO, + .cmd2iclkout = MT47H128M16RT25E_INVERT_CLKOUT, +}; + +static const struct emif_regs ddr2_emif_reg_data = { + .sdram_config = MT47H128M16RT25E_EMIF_SDCFG, + .ref_ctrl = MT47H128M16RT25E_EMIF_SDREF, + .sdram_tim1 = MT47H128M16RT25E_EMIF_TIM1, + .sdram_tim2 = MT47H128M16RT25E_EMIF_TIM2, + .sdram_tim3 = MT47H128M16RT25E_EMIF_TIM3, + .emif_ddr_phy_ctlr_1 = MT47H128M16RT25E_EMIF_READ_LATENCY, +}; + +static const struct ddr_data ddr3_data = { + .datardsratio0 = MT41J128MJT125_RD_DQS, + .datawdsratio0 = MT41J128MJT125_WR_DQS, + .datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE, + .datawrsratio0 = MT41J128MJT125_PHY_WR_DATA, +}; + +static const struct ddr_data ddr3_beagleblack_data = { + .datardsratio0 = MT41K256M16HA125E_RD_DQS, + .datawdsratio0 = MT41K256M16HA125E_WR_DQS, + .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE, + .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA, +}; + +static const struct ddr_data ddr3_evm_data = { + .datardsratio0 = MT41J512M8RH125_RD_DQS, + .datawdsratio0 = MT41J512M8RH125_WR_DQS, + .datafwsratio0 = MT41J512M8RH125_PHY_FIFO_WE, + .datawrsratio0 = MT41J512M8RH125_PHY_WR_DATA, +}; + +static const struct cmd_control ddr3_cmd_ctrl_data = { + .cmd0csratio = MT41J128MJT125_RATIO, + .cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT, + + .cmd1csratio = MT41J128MJT125_RATIO, + .cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT, + + .cmd2csratio = MT41J128MJT125_RATIO, + .cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT, +}; + +static const struct cmd_control ddr3_beagleblack_cmd_ctrl_data = { + .cmd0csratio = MT41K256M16HA125E_RATIO, + .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT, + + .cmd1csratio = MT41K256M16HA125E_RATIO, + .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT, + + .cmd2csratio = MT41K256M16HA125E_RATIO, + .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT, +}; + +static const struct cmd_control ddr3_evm_cmd_ctrl_data = { + .cmd0csratio = MT41J512M8RH125_RATIO, + .cmd0iclkout = MT41J512M8RH125_INVERT_CLKOUT, + + .cmd1csratio = MT41J512M8RH125_RATIO, + .cmd1iclkout = MT41J512M8RH125_INVERT_CLKOUT, + + .cmd2csratio = MT41J512M8RH125_RATIO, + .cmd2iclkout = MT41J512M8RH125_INVERT_CLKOUT, +}; + +static struct emif_regs ddr3_emif_reg_data = { + .sdram_config = MT41J128MJT125_EMIF_SDCFG, + .ref_ctrl = MT41J128MJT125_EMIF_SDREF, + .sdram_tim1 = MT41J128MJT125_EMIF_TIM1, + .sdram_tim2 = MT41J128MJT125_EMIF_TIM2, + .sdram_tim3 = MT41J128MJT125_EMIF_TIM3, + .zq_config = MT41J128MJT125_ZQ_CFG, + .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY | + PHY_EN_DYN_PWRDN, +}; + +static struct emif_regs ddr3_beagleblack_emif_reg_data = { + .sdram_config = MT41K256M16HA125E_EMIF_SDCFG, + .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF, + .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1, + .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2, + .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3, + .zq_config = MT41K256M16HA125E_ZQ_CFG, + .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY, +}; + +static struct emif_regs ddr3_evm_emif_reg_data = { + .sdram_config = MT41J512M8RH125_EMIF_SDCFG, + .ref_ctrl = MT41J512M8RH125_EMIF_SDREF, + .sdram_tim1 = MT41J512M8RH125_EMIF_TIM1, + .sdram_tim2 = MT41J512M8RH125_EMIF_TIM2, + .sdram_tim3 = MT41J512M8RH125_EMIF_TIM3, + .zq_config = MT41J512M8RH125_ZQ_CFG, + .emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY | + PHY_EN_DYN_PWRDN, +}; + +#ifdef CONFIG_SPL_OS_BOOT +int spl_start_uboot(void) +{ + /* break into full u-boot on 'c' */ + if (serial_tstc() && serial_getc() == 'c') + return 1; + +#ifdef CONFIG_SPL_ENV_SUPPORT + env_init(); + env_relocate_spec(); + if (getenv_yesno("boot_os") != 1) + return 1; +#endif + + return 0; +} +#endif + +#define OSC (V_OSCK/1000000) +const struct dpll_params dpll_ddr = { + 266, OSC-1, 1, -1, -1, -1, -1}; +const struct dpll_params dpll_ddr_evm_sk = { + 303, OSC-1, 1, -1, -1, -1, -1}; +const struct dpll_params dpll_ddr_bone_black = { + 400, OSC-1, 1, -1, -1, -1, -1}; + +void am33xx_spl_board_init(void) +{ + struct am335x_baseboard_id header; + int mpu_vdd; + + if (read_eeprom(&header) < 0) + puts("Could not get board ID.\n"); + + /* Get the frequency */ + dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); + + if (board_is_bone(&header) || board_is_bone_lt(&header)) { + /* BeagleBone PMIC Code */ + int usb_cur_lim; + + /* + * Only perform PMIC configurations if board rev > A1 + * on Beaglebone White + */ + if (board_is_bone(&header) && !strncmp(header.version, + "00A1", 4)) + return; + + if (i2c_probe(TPS65217_CHIP_PM)) + return; + + /* + * On Beaglebone White we need to ensure we have AC power + * before increasing the frequency. + */ + if (board_is_bone(&header)) { + uchar pmic_status_reg; + if (tps65217_reg_read(TPS65217_STATUS, + &pmic_status_reg)) + return; + if (!(pmic_status_reg & TPS65217_PWR_SRC_AC_BITMASK)) { + puts("No AC power, disabling frequency switch\n"); + return; + } + } + + /* + * Override what we have detected since we know if we have + * a Beaglebone Black it supports 1GHz. + */ + if (board_is_bone_lt(&header)) + dpll_mpu_opp100.m = MPUPLL_M_1000; + + /* + * Increase USB current limit to 1300mA or 1800mA and set + * the MPU voltage controller as needed. + */ + if (dpll_mpu_opp100.m == MPUPLL_M_1000) { + usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA; + mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV; + } else { + usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA; + mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV; + } + + if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, + TPS65217_POWER_PATH, + usb_cur_lim, + TPS65217_USB_INPUT_CUR_LIMIT_MASK)) + puts("tps65217_reg_write failure\n"); + + /* Set DCDC3 (CORE) voltage to 1.125V */ + if (tps65217_voltage_update(TPS65217_DEFDCDC3, + TPS65217_DCDC_VOLT_SEL_1125MV)) { + puts("tps65217_voltage_update failure\n"); + return; + } + + /* Set CORE Frequencies to OPP100 */ + do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); + + /* Set DCDC2 (MPU) voltage */ + if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) { + puts("tps65217_voltage_update failure\n"); + return; + } + + /* + * Set LDO3, LDO4 output voltage to 3.3V for Beaglebone. + * Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black. + */ + if (board_is_bone(&header)) { + if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, + TPS65217_DEFLS1, + TPS65217_LDO_VOLTAGE_OUT_3_3, + TPS65217_LDO_MASK)) + puts("tps65217_reg_write failure\n"); + } else { + if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, + TPS65217_DEFLS1, + TPS65217_LDO_VOLTAGE_OUT_1_8, + TPS65217_LDO_MASK)) + puts("tps65217_reg_write failure\n"); + } + + if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, + TPS65217_DEFLS2, + TPS65217_LDO_VOLTAGE_OUT_3_3, + TPS65217_LDO_MASK)) + puts("tps65217_reg_write failure\n"); + } else { + int sil_rev; + + /* + * The GP EVM, IDK and EVM SK use a TPS65910 PMIC. For all + * MPU frequencies we support we use a CORE voltage of + * 1.1375V. For MPU voltage we need to switch based on + * the frequency we are running at. + */ + if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) + return; + + /* + * Depending on MPU clock and PG we will need a different + * VDD to drive at that speed. + */ + sil_rev = readl(&cdev->deviceid) >> 28; + mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev, + dpll_mpu_opp100.m); + + /* Tell the TPS65910 to use i2c */ + tps65910_set_i2c_control(); + + /* First update MPU voltage. */ + if (tps65910_voltage_update(MPU, mpu_vdd)) + return; + + /* Second, update the CORE voltage. */ + if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3)) + return; + + /* Set CORE Frequencies to OPP100 */ + do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); + } + + /* Set MPU Frequency to what we detected now that voltages are set */ + do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100); +} + +const struct dpll_params *get_dpll_ddr_params(void) +{ + struct am335x_baseboard_id header; + + enable_i2c0_pin_mux(); + i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE); + if (read_eeprom(&header) < 0) + puts("Could not get board ID.\n"); + + if (board_is_evm_sk(&header)) + return &dpll_ddr_evm_sk; + else if (board_is_bone_lt(&header)) + return &dpll_ddr_bone_black; + else if (board_is_evm_15_or_later(&header)) + return &dpll_ddr_evm_sk; + else + return &dpll_ddr; +} + +void set_uart_mux_conf(void) +{ +#ifdef CONFIG_SERIAL1 + enable_uart0_pin_mux(); +#endif /* CONFIG_SERIAL1 */ +#ifdef CONFIG_SERIAL2 + enable_uart1_pin_mux(); +#endif /* CONFIG_SERIAL2 */ +#ifdef CONFIG_SERIAL3 + enable_uart2_pin_mux(); +#endif /* CONFIG_SERIAL3 */ +#ifdef CONFIG_SERIAL4 + enable_uart3_pin_mux(); +#endif /* CONFIG_SERIAL4 */ +#ifdef CONFIG_SERIAL5 + enable_uart4_pin_mux(); +#endif /* CONFIG_SERIAL5 */ +#ifdef CONFIG_SERIAL6 + enable_uart5_pin_mux(); +#endif /* CONFIG_SERIAL6 */ +} + +void set_mux_conf_regs(void) +{ + __maybe_unused struct am335x_baseboard_id header; + + if (read_eeprom(&header) < 0) + puts("Could not get board ID.\n"); + + enable_board_pin_mux(&header); +} + +const struct ctrl_ioregs ioregs_evmsk = { + .cm0ioctl = MT41J128MJT125_IOCTRL_VALUE, + .cm1ioctl = MT41J128MJT125_IOCTRL_VALUE, + .cm2ioctl = MT41J128MJT125_IOCTRL_VALUE, + .dt0ioctl = MT41J128MJT125_IOCTRL_VALUE, + .dt1ioctl = MT41J128MJT125_IOCTRL_VALUE, +}; + +const struct ctrl_ioregs ioregs_bonelt = { + .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, + .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, + .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE, + .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, + .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, +}; + +const struct ctrl_ioregs ioregs_evm15 = { + .cm0ioctl = MT41J512M8RH125_IOCTRL_VALUE, + .cm1ioctl = MT41J512M8RH125_IOCTRL_VALUE, + .cm2ioctl = MT41J512M8RH125_IOCTRL_VALUE, + .dt0ioctl = MT41J512M8RH125_IOCTRL_VALUE, + .dt1ioctl = MT41J512M8RH125_IOCTRL_VALUE, +}; + +const struct ctrl_ioregs ioregs = { + .cm0ioctl = MT47H128M16RT25E_IOCTRL_VALUE, + .cm1ioctl = MT47H128M16RT25E_IOCTRL_VALUE, + .cm2ioctl = MT47H128M16RT25E_IOCTRL_VALUE, + .dt0ioctl = MT47H128M16RT25E_IOCTRL_VALUE, + .dt1ioctl = MT47H128M16RT25E_IOCTRL_VALUE, +}; + +void sdram_init(void) +{ + __maybe_unused struct am335x_baseboard_id header; + + if (read_eeprom(&header) < 0) + puts("Could not get board ID.\n"); + + if (board_is_evm_sk(&header)) { + /* + * EVM SK 1.2A and later use gpio0_7 to enable DDR3. + * This is safe enough to do on older revs. + */ + gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en"); + gpio_direction_output(GPIO_DDR_VTT_EN, 1); + } + + if (board_is_evm_sk(&header)) + config_ddr(303, &ioregs_evmsk, &ddr3_data, + &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0); + else if (board_is_bone_lt(&header)) + config_ddr(400, &ioregs_bonelt, + &ddr3_beagleblack_data, + &ddr3_beagleblack_cmd_ctrl_data, + &ddr3_beagleblack_emif_reg_data, 0); + else if (board_is_evm_15_or_later(&header)) + config_ddr(303, &ioregs_evm15, &ddr3_evm_data, + &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0); + else + config_ddr(266, &ioregs, &ddr2_data, + &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0); +} +#endif + +/* + * Basic board specific setup. Pinmux has been handled already. + */ +int board_init(void) +{ +#if defined(CONFIG_HW_WATCHDOG) + hw_watchdog_init(); +#endif + + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; +#if defined(CONFIG_NOR) || defined(CONFIG_NAND) + gpmc_init(); +#endif + return 0; +} + +#ifdef CONFIG_BOARD_LATE_INIT +int board_late_init(void) +{ +#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG + char safe_string[HDR_NAME_LEN + 1]; + struct am335x_baseboard_id header; + + if (read_eeprom(&header) < 0) + puts("Could not get board ID.\n"); + + /* Now set variables based on the header. */ + strncpy(safe_string, (char *)header.name, sizeof(header.name)); + safe_string[sizeof(header.name)] = 0; + setenv("board_name", safe_string); + + strncpy(safe_string, (char *)header.version, sizeof(header.version)); + safe_string[sizeof(header.version)] = 0; + setenv("board_rev", safe_string); +#endif + + return 0; +} +#endif + +#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ + (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) +static void cpsw_control(int enabled) +{ + /* VTP can be added here */ + + return; +} + +static struct cpsw_slave_data cpsw_slaves[] = { + { + .slave_reg_ofs = 0x208, + .sliver_reg_ofs = 0xd80, + .phy_addr = 0, + }, + { + .slave_reg_ofs = 0x308, + .sliver_reg_ofs = 0xdc0, + .phy_addr = 1, + }, +}; + +static struct cpsw_platform_data cpsw_data = { + .mdio_base = CPSW_MDIO_BASE, + .cpsw_base = CPSW_BASE, + .mdio_div = 0xff, + .channels = 8, + .cpdma_reg_ofs = 0x800, + .slaves = 1, + .slave_data = cpsw_slaves, + .ale_reg_ofs = 0xd00, + .ale_entries = 1024, + .host_port_reg_ofs = 0x108, + .hw_stats_reg_ofs = 0x900, + .bd_ram_ofs = 0x2000, + .mac_control = (1 << 5), + .control = cpsw_control, + .host_port_num = 0, + .version = CPSW_CTRL_VERSION_2, +}; +#endif + +/* + * This function will: + * Read the eFuse for MAC addresses, and set ethaddr/eth1addr/usbnet_devaddr + * in the environment + * Perform fixups to the PHY present on certain boards. We only need this + * function in: + * - SPL with either CPSW or USB ethernet support + * - Full U-Boot, with either CPSW or USB ethernet + * Build in only these cases to avoid warnings about unused variables + * when we build an SPL that has neither option but full U-Boot will. + */ +#if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT)) \ + && defined(CONFIG_SPL_BUILD)) || \ + ((defined(CONFIG_DRIVER_TI_CPSW) || \ + defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)) && \ + !defined(CONFIG_SPL_BUILD)) +int board_eth_init(bd_t *bis) +{ + int rv, n = 0; + uint8_t mac_addr[6]; + uint32_t mac_hi, mac_lo; + __maybe_unused struct am335x_baseboard_id header; + + /* try reading mac address from efuse */ + mac_lo = readl(&cdev->macid0l); + mac_hi = readl(&cdev->macid0h); + mac_addr[0] = mac_hi & 0xFF; + mac_addr[1] = (mac_hi & 0xFF00) >> 8; + mac_addr[2] = (mac_hi & 0xFF0000) >> 16; + mac_addr[3] = (mac_hi & 0xFF000000) >> 24; + mac_addr[4] = mac_lo & 0xFF; + mac_addr[5] = (mac_lo & 0xFF00) >> 8; + +#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ + (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) + if (!getenv("ethaddr")) { + printf("<ethaddr> not set. Validating first E-fuse MAC\n"); + + if (is_valid_ether_addr(mac_addr)) + eth_setenv_enetaddr("ethaddr", mac_addr); + } + +#ifdef CONFIG_DRIVER_TI_CPSW + + mac_lo = readl(&cdev->macid1l); + mac_hi = readl(&cdev->macid1h); + mac_addr[0] = mac_hi & 0xFF; + mac_addr[1] = (mac_hi & 0xFF00) >> 8; + mac_addr[2] = (mac_hi & 0xFF0000) >> 16; + mac_addr[3] = (mac_hi & 0xFF000000) >> 24; + mac_addr[4] = mac_lo & 0xFF; + mac_addr[5] = (mac_lo & 0xFF00) >> 8; + + if (!getenv("eth1addr")) { + if (is_valid_ether_addr(mac_addr)) + eth_setenv_enetaddr("eth1addr", mac_addr); + } + + if (read_eeprom(&header) < 0) + puts("Could not get board ID.\n"); + + if (board_is_bone(&header) || board_is_bone_lt(&header) || + board_is_idk(&header)) { + writel(MII_MODE_ENABLE, &cdev->miisel); + cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = + PHY_INTERFACE_MODE_MII; + } else { + writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel); + cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = + PHY_INTERFACE_MODE_RGMII; + } + + rv = cpsw_register(&cpsw_data); + if (rv < 0) + printf("Error %d registering CPSW switch\n", rv); + else + n += rv; +#endif + + /* + * + * CPSW RGMII Internal Delay Mode is not supported in all PVT + * operating points. So we must set the TX clock delay feature + * in the AR8051 PHY. Since we only support a single ethernet + * device in U-Boot, we only do this for the first instance. + */ +#define AR8051_PHY_DEBUG_ADDR_REG 0x1d +#define AR8051_PHY_DEBUG_DATA_REG 0x1e +#define AR8051_DEBUG_RGMII_CLK_DLY_REG 0x5 +#define AR8051_RGMII_TX_CLK_DLY 0x100 + + if (board_is_evm_sk(&header) || board_is_gp_evm(&header)) { + const char *devname; + devname = miiphy_get_current_dev(); + + miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_ADDR_REG, + AR8051_DEBUG_RGMII_CLK_DLY_REG); + miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_DATA_REG, + AR8051_RGMII_TX_CLK_DLY); + } +#endif +#if defined(CONFIG_USB_ETHER) && \ + (!defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_USBETH_SUPPORT)) + if (is_valid_ether_addr(mac_addr)) + eth_setenv_enetaddr("usbnet_devaddr", mac_addr); + + rv = usb_eth_initialize(bis); + if (rv < 0) + printf("Error %d registering USB_ETHER\n", rv); + else + n += rv; +#endif + return n; +} +#endif |