| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * board.c |
| * |
| * Board functions for Birdland Audio BAV335x Network Processor |
| * |
| * Copyright (c) 2012-2014 Birdland Audio - http://birdland.com/oem |
| */ |
| |
| #include <common.h> |
| #include <env.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 <env_internal.h> |
| #include <watchdog.h> |
| #include "board.h" |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| /* GPIO that controls power to DDR on EVM-SK */ |
| #define GPIO_DDR_VTT_EN 7 |
| |
| static __maybe_unused struct ctrl_dev *cdev = |
| (struct ctrl_dev *)CTRL_DEVICE_BASE; |
| |
| |
| |
| /* |
| * Read header information from EEPROM into global structure. |
| */ |
| static int read_eeprom(struct board_eeconfig *header) |
| { |
| /* Check if baseboard eeprom is available */ |
| if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) |
| return -ENODEV; |
| |
| /* read the eeprom using i2c */ |
| if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)header, |
| sizeof(struct board_eeconfig))) |
| return -EIO; |
| |
| if (header->magic != BOARD_MAGIC) { |
| /* read the i2c eeprom again using only a 1 byte address */ |
| if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header, |
| sizeof(struct board_eeconfig))) |
| return -EIO; |
| |
| if (header->magic != BOARD_MAGIC) |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| |
| |
| |
| enum board_type get_board_type(bool debug) |
| { |
| int ecode; |
| struct board_eeconfig header; |
| |
| ecode = read_eeprom(&header); |
| if (ecode == 0) { |
| if (header.version[1] == 'A') { |
| if (debug) |
| puts("=== Detected Board model BAV335x Rev.A"); |
| return BAV335A; |
| } else if (header.version[1] == 'B') { |
| if (debug) |
| puts("=== Detected Board model BAV335x Rev.B"); |
| return BAV335B; |
| } else if (debug) { |
| puts("### Un-known board model in serial-EE\n"); |
| } |
| } else if (debug) { |
| switch (ecode) { |
| case -ENODEV: |
| puts("### Board doesn't have a serial-EE\n"); |
| break; |
| case -EINVAL: |
| puts("### Board serial-EE signature is incorrect.\n"); |
| break; |
| default: |
| puts("### IO Error reading serial-EE.\n"); |
| break; |
| } |
| } |
| |
| #if (CONFIG_BAV_VERSION == 1) |
| if (debug) |
| puts("### Selecting BAV335A as per config\n"); |
| return BAV335A; |
| #elif (CONFIG_BAV_VERSION == 2) |
| if (debug) |
| puts("### Selecting BAV335B as per config\n"); |
| return BAV335B; |
| #endif |
| #if (NOT_DEFINED == 2) |
| #error "SHOULD NEVER DISPLAY THIS" |
| #endif |
| |
| if (debug) |
| puts("### Defaulting to model BAV335x Rev.B\n"); |
| return BAV335B; |
| } |
| |
| |
| |
| #ifndef CONFIG_SKIP_LOWLEVEL_INIT |
| static const struct ddr_data ddr3_bav335x_data = { |
| .datardsratio0 = MT41K256M16HA125E_RD_DQS, |
| .datawdsratio0 = MT41K256M16HA125E_WR_DQS, |
| .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE, |
| .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA, |
| }; |
| |
| static const struct cmd_control ddr3_bav335x_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 struct emif_regs ddr3_bav335x_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, |
| }; |
| |
| |
| #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_load(); |
| if (env_get_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) |
| { |
| /* debug print detect status */ |
| (void)get_board_type(true); |
| |
| /* Get the frequency */ |
| /* dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); */ |
| dpll_mpu_opp100.m = MPUPLL_M_1000; |
| |
| if (i2c_probe(TPS65217_CHIP_PM)) |
| return; |
| |
| /* Set the USB Current Limit */ |
| if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH, |
| TPS65217_USB_INPUT_CUR_LIMIT_1800MA, |
| TPS65217_USB_INPUT_CUR_LIMIT_MASK)) |
| puts("! tps65217_reg_write: could not set USB limit\n"); |
| |
| /* Set the Core Voltage (DCDC3) to 1.125V */ |
| if (tps65217_voltage_update(TPS65217_DEFDCDC3, |
| TPS65217_DCDC_VOLT_SEL_1125MV)) { |
| puts("! tps65217_reg_write: could not set Core Voltage\n"); |
| return; |
| } |
| |
| /* Set CORE Frequencies to OPP100 */ |
| do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); |
| |
| /* Set the MPU Voltage (DCDC2) */ |
| if (tps65217_voltage_update(TPS65217_DEFDCDC2, |
| TPS65217_DCDC_VOLT_SEL_1325MV)) { |
| puts("! tps65217_reg_write: could not set MPU Voltage\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 (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFLS1, |
| TPS65217_LDO_VOLTAGE_OUT_1_8, TPS65217_LDO_MASK)) |
| puts("! tps65217_reg_write: could not set LDO3\n"); |
| |
| if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, TPS65217_DEFLS2, |
| TPS65217_LDO_VOLTAGE_OUT_3_3, TPS65217_LDO_MASK)) |
| puts("! tps65217_reg_write: could not set LDO4\n"); |
| |
| /* 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) |
| { |
| enable_i2c0_pin_mux(); |
| i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE); |
| |
| return &dpll_ddr_bone_black; |
| } |
| |
| void set_uart_mux_conf(void) |
| { |
| #if CONFIG_CONS_INDEX == 1 |
| enable_uart0_pin_mux(); |
| #elif CONFIG_CONS_INDEX == 2 |
| enable_uart1_pin_mux(); |
| #elif CONFIG_CONS_INDEX == 3 |
| enable_uart2_pin_mux(); |
| #elif CONFIG_CONS_INDEX == 4 |
| enable_uart3_pin_mux(); |
| #elif CONFIG_CONS_INDEX == 5 |
| enable_uart4_pin_mux(); |
| #elif CONFIG_CONS_INDEX == 6 |
| enable_uart5_pin_mux(); |
| #endif |
| } |
| |
| void set_mux_conf_regs(void) |
| { |
| enum board_type board; |
| |
| board = get_board_type(false); |
| enable_board_pin_mux(board); |
| } |
| |
| 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, |
| }; |
| |
| |
| void sdram_init(void) |
| { |
| config_ddr(400, &ioregs_bonelt, |
| &ddr3_bav335x_data, |
| &ddr3_bav335x_cmd_ctrl_data, |
| &ddr3_bav335x_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 |
| env_set("board_name", "BAV335xB"); |
| env_set("board_rev", "B"); /* Fix me, but why bother.. */ |
| #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: |
| * 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_USB_ETHER)) &&\ |
| defined(CONFIG_SPL_BUILD)) || \ |
| ((defined(CONFIG_DRIVER_TI_CPSW) || \ |
| defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)) && \ |
| !defined(CONFIG_SPL_BUILD)) |
| int board_eth_init(bd_t *bis) |
| { |
| int ecode, rv, n; |
| uint8_t mac_addr[6]; |
| struct board_eeconfig header; |
| __maybe_unused enum board_type board; |
| |
| /* Default manufacturing address; used when no EE or invalid */ |
| n = 0; |
| mac_addr[0] = 0; |
| mac_addr[1] = 0x20; |
| mac_addr[2] = 0x18; |
| mac_addr[3] = 0x1C; |
| mac_addr[4] = 0x00; |
| mac_addr[5] = 0x01; |
| |
| ecode = read_eeprom(&header); |
| /* if we have a valid EE, get mac address from there */ |
| if ((ecode == 0) && |
| is_valid_ethaddr((const u8 *)&header.mac_addr[0][0])) { |
| memcpy(mac_addr, (const void *)&header.mac_addr[0][0], 6); |
| } |
| |
| |
| #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ |
| (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) |
| |
| if (!env_get("ethaddr")) { |
| printf("<ethaddr> not set. Validating first E-fuse MAC\n"); |
| |
| if (is_valid_ethaddr(mac_addr)) |
| eth_env_set_enetaddr("ethaddr", mac_addr); |
| } |
| |
| #ifdef CONFIG_DRIVER_TI_CPSW |
| |
| board = get_board_type(false); |
| |
| /* Rev.A uses 10/100 PHY in mii mode */ |
| if (board == BAV335A) { |
| writel(MII_MODE_ENABLE, &cdev->miisel); |
| cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_MII; |
| cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_MII; |
| } |
| /* Rev.B (default) uses GB PHY in rmii mode */ |
| 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 |
| |
| #endif |
| |
| return n; |
| } |
| #endif |