diff options
Diffstat (limited to 'board/BuR/common/common.c')
| -rw-r--r-- | board/BuR/common/common.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/board/BuR/common/common.c b/board/BuR/common/common.c new file mode 100644 index 0000000..6d187ea --- /dev/null +++ b/board/BuR/common/common.c @@ -0,0 +1,216 @@ +/* + * common.c + * + * common board functions for B&R boards + * + * Copyright (C) 2013 Hannes Petermaier <oe5hpm@oevsv.at> + * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.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/clock.h> +#include <asm/arch/gpio.h> +#include <asm/arch/sys_proto.h> +#include <asm/io.h> +#include <asm/gpio.h> +#include <i2c.h> +#include <miiphy.h> +#include <cpsw.h> +#include <power/tps65217.h> +#include "bur_common.h" + +static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; +/* --------------------------------------------------------------------------*/ +void blink(u32 blinks, u32 intervall, u32 pin) +{ + gpio_direction_output(pin, 0); + int val = 0; + + do { + val ^= 0x01; + gpio_set_value(pin, val); + mdelay(intervall); + } while (blinks--); + + gpio_set_value(pin, 0); +} +#ifdef CONFIG_SPL_BUILD +void pmicsetup(u32 mpupll) +{ + int mpu_vdd; + int usb_cur_lim; + + /* setup I2C */ + enable_i2c0_pin_mux(); + i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE); + + if (i2c_probe(TPS65217_CHIP_PM)) { + puts("PMIC (0x24) not found! skip further initalization.\n"); + return; + } + + /* Get the frequency which is defined by device fuses */ + dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); + printf("detected max. frequency: %d - ", dpll_mpu_opp100.m); + + if (0 != mpupll) { + dpll_mpu_opp100.m = MPUPLL_M_1000; + printf("retuning MPU-PLL to: %d MHz.\n", dpll_mpu_opp100.m); + } else { + puts("ok.\n"); + } + /* + * 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 to 1.8V */ + 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"); + /* Set LDO4 to 3.3V */ + 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"); + + /* Set MPU Frequency to what we detected now that voltages are set */ + do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100); +} + +void set_uart_mux_conf(void) +{ + enable_uart0_pin_mux(); +} + +void set_mux_conf_regs(void) +{ + enable_board_pin_mux(); +} + +#endif /* CONFIG_SPL_BUILD */ + +#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; +} + +/* describing port offsets of TI's CPSW block */ +static struct cpsw_slave_data cpsw_slaves[] = { + { + .slave_reg_ofs = 0x208, + .sliver_reg_ofs = 0xd80, + .phy_id = 0, + }, + { + .slave_reg_ofs = 0x308, + .sliver_reg_ofs = 0xdc0, + .phy_id = 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 /* CONFIG_DRIVER_TI_CPSW, ... */ + +#if defined(CONFIG_DRIVER_TI_CPSW) + +int board_eth_init(bd_t *bis) +{ + int rv = 0; + uint8_t mac_addr[6]; + uint32_t mac_hi, mac_lo; + + /* 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 ... "); + + if (is_valid_ether_addr(mac_addr)) { + printf("using: %02X:%02X:%02X:%02X:%02X:%02X.\n", + mac_addr[0], mac_addr[1], mac_addr[2], + mac_addr[3], mac_addr[4], mac_addr[5] + ); + eth_setenv_enetaddr("ethaddr", mac_addr); + } + } + writel(MII_MODE_ENABLE, &cdev->miisel); + cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_MII; + cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_MII; + + rv = cpsw_register(&cpsw_data); + if (rv < 0) { + printf("Error %d registering CPSW switch\n", rv); + return 0; + } +#endif /* CONFIG_DRIVER_TI_CPSW, ... */ + return rv; +} +#endif /* CONFIG_DRIVER_TI_CPSW */ |