From 45123804200a268c3bfc879b49bd30aef565b79b Mon Sep 17 00:00:00 2001 From: Sjoerd Simons Date: Mon, 25 Feb 2019 15:33:00 +0000 Subject: am335x, guardian: Add support for the bosch guardian board Add support for the Bosch Guardian board. CPU : AM335X-GP rev 2.1 Model: Bosch AM335x Guardian I2C: ready DRAM: 256 MiB NAND: 512 MiB MMC: OMAP SD/MMC: 0 Signed-off-by: Sjoerd Simons Signed-off-by: Martyn Welch Reviewed-by: Tom Rini Reviewed-by: Felix Brack --- board/bosch/guardian/Kconfig | 15 ++++ board/bosch/guardian/MAINTAINERS | 6 ++ board/bosch/guardian/Makefile | 12 +++ board/bosch/guardian/board.c | 186 +++++++++++++++++++++++++++++++++++++++ board/bosch/guardian/board.h | 17 ++++ board/bosch/guardian/mux.c | 99 +++++++++++++++++++++ 6 files changed, 335 insertions(+) create mode 100644 board/bosch/guardian/Kconfig create mode 100644 board/bosch/guardian/MAINTAINERS create mode 100644 board/bosch/guardian/Makefile create mode 100644 board/bosch/guardian/board.c create mode 100644 board/bosch/guardian/board.h create mode 100644 board/bosch/guardian/mux.c (limited to 'board/bosch/guardian') diff --git a/board/bosch/guardian/Kconfig b/board/bosch/guardian/Kconfig new file mode 100644 index 0000000000..1417da61f0 --- /dev/null +++ b/board/bosch/guardian/Kconfig @@ -0,0 +1,15 @@ +if TARGET_AM335X_GUARDIAN + +config SYS_BOARD + default "guardian" + +config SYS_VENDOR + default "bosch" + +config SYS_SOC + default "am33xx" + +config SYS_CONFIG_NAME + default "am335x_guardian" + +endif diff --git a/board/bosch/guardian/MAINTAINERS b/board/bosch/guardian/MAINTAINERS new file mode 100644 index 0000000000..8d16ec0202 --- /dev/null +++ b/board/bosch/guardian/MAINTAINERS @@ -0,0 +1,6 @@ +Guardian BOARD +M: Sjoerd Simons +S: Maintained +F: board/bosch/guardian/ +F: include/configs/am335x_guardian.h +F: configs/am335x_guardian_defconfig diff --git a/board/bosch/guardian/Makefile b/board/bosch/guardian/Makefile new file mode 100644 index 0000000000..11625c9dd6 --- /dev/null +++ b/board/bosch/guardian/Makefile @@ -0,0 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Makefile +# +# Copyright (C) 2018 Robert Bosch Power Tools GmbH +# + +ifeq ($(CONFIG_SKIP_LOWLEVEL_INIT),) +obj-y := mux.o +endif + +obj-y += board.o diff --git a/board/bosch/guardian/board.c b/board/bosch/guardian/board.c new file mode 100644 index 0000000000..86ab180f5c --- /dev/null +++ b/board/bosch/guardian/board.c @@ -0,0 +1,186 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * board.c + * + * Board functions for Bosch Guardian + * + * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ + * Copyright (C) 2018 Robert Bosch Power Tools GmbH + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "board.h" + +DECLARE_GLOBAL_DATA_PTR; + +#ifndef CONFIG_SKIP_LOWLEVEL_INIT +static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; + +static const struct ddr_data ddr3_data = { + .datardsratio0 = MT41K128M16JT125K_RD_DQS, + .datawdsratio0 = MT41K128M16JT125K_WR_DQS, + .datafwsratio0 = MT41K128M16JT125K_PHY_FIFO_WE, + .datawrsratio0 = MT41K128M16JT125K_PHY_WR_DATA, +}; + +static const struct cmd_control ddr3_cmd_ctrl_data = { + .cmd0csratio = MT41K128M16JT125K_RATIO, + .cmd0iclkout = MT41K128M16JT125K_INVERT_CLKOUT, + + .cmd1csratio = MT41K128M16JT125K_RATIO, + .cmd1iclkout = MT41K128M16JT125K_INVERT_CLKOUT, + + .cmd2csratio = MT41K128M16JT125K_RATIO, + .cmd2iclkout = MT41K128M16JT125K_INVERT_CLKOUT, +}; + +static struct emif_regs ddr3_emif_reg_data = { + .sdram_config = MT41K128M16JT125K_EMIF_SDCFG, + .ref_ctrl = MT41K128M16JT125K_EMIF_SDREF, + .sdram_tim1 = MT41K128M16JT125K_EMIF_TIM1, + .sdram_tim2 = MT41K128M16JT125K_EMIF_TIM2, + .sdram_tim3 = MT41K128M16JT125K_EMIF_TIM3, + .zq_config = MT41K128M16JT125K_ZQ_CFG, + .emif_ddr_phy_ctlr_1 = MT41K128M16JT125K_EMIF_READ_LATENCY, +}; + +#define OSC (V_OSCK / 1000000) +const struct dpll_params dpll_ddr = { + 400, OSC - 1, 1, -1, -1, -1, -1}; + +void am33xx_spl_board_init(void) +{ + int mpu_vdd; + int usb_cur_lim; + + /* Get the frequency */ + dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); + + if (i2c_probe(TPS65217_CHIP_PM)) + return; + + /* + * 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 and LDO4 to 3.3V + */ + 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"); + + /* 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; +} + +void set_uart_mux_conf(void) +{ + enable_uart0_pin_mux(); +} + +void set_mux_conf_regs(void) +{ + enable_board_pin_mux(); +} + +const struct ctrl_ioregs ioregs = { + .cm0ioctl = MT41K128M16JT125K_IOCTRL_VALUE, + .cm1ioctl = MT41K128M16JT125K_IOCTRL_VALUE, + .cm2ioctl = MT41K128M16JT125K_IOCTRL_VALUE, + .dt0ioctl = MT41K128M16JT125K_IOCTRL_VALUE, + .dt1ioctl = MT41K128M16JT125K_IOCTRL_VALUE, +}; + +void sdram_init(void) +{ + config_ddr(400, &ioregs, + &ddr3_data, + &ddr3_cmd_ctrl_data, + &ddr3_emif_reg_data, 0); +} +#endif + +int board_init(void) +{ +#if defined(CONFIG_HW_WATCHDOG) + hw_watchdog_init(); +#endif + + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + +#ifdef CONFIG_NAND + gpmc_init(); +#endif + return 0; +} diff --git a/board/bosch/guardian/board.h b/board/bosch/guardian/board.h new file mode 100644 index 0000000000..b301caf47f --- /dev/null +++ b/board/bosch/guardian/board.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * board.h + * + * Board header for Bosch Guardian + * + * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ + * Copyright (C) 2018 Robert Bosch Power Tools GmbH + */ + +#ifndef _BOARD_H_ +#define _BOARD_H_ + +void enable_uart0_pin_mux(void); +void enable_i2c0_pin_mux(void); +void enable_board_pin_mux(void); +#endif diff --git a/board/bosch/guardian/mux.c b/board/bosch/guardian/mux.c new file mode 100644 index 0000000000..708c3e7fdd --- /dev/null +++ b/board/bosch/guardian/mux.c @@ -0,0 +1,99 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * mux.c + * + * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ + * Copyright (C) 2018 Robert Bosch Power Tools GmbH + */ + +#include +#include +#include +#include +#include +#include +#include "board.h" + +static struct module_pin_mux uart0_pin_mux[] = { + {OFFSET(uart0_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)}, + {OFFSET(uart0_txd), (MODE(0) | PULLUDEN)}, + {-1}, +}; + +static struct module_pin_mux i2c0_pin_mux[] = { + {OFFSET(i2c0_sda), (MODE(0) | RXACTIVE | PULLUDEN | SLEWCTRL)}, + {OFFSET(i2c0_scl), (MODE(0) | RXACTIVE | PULLUDEN | SLEWCTRL)}, + {-1}, +}; + +static struct module_pin_mux adc_voltages_en[] = { + {OFFSET(mcasp0_ahclkx), (MODE(7) | PULLUP_EN)}, + {-1}, +}; + +static struct module_pin_mux asp_power_en[] = { + {OFFSET(mcasp0_aclkx), (MODE(7) | PULLUP_EN)}, + {-1}, +}; + +static struct module_pin_mux switch_off_3v6_pin_mux[] = { + {OFFSET(mii1_txd0), (MODE(7) | PULLUP_EN)}, + /* + * The uart1 lines are made floating inputs, based on the Guardian + * A2 Sample Power Supply Schematics + */ + {OFFSET(uart1_rxd), (MODE(7) | PULLUDDIS)}, + {OFFSET(uart1_txd), (MODE(7) | PULLUDDIS)}, + {-1}, +}; + +#ifdef CONFIG_NAND +static struct module_pin_mux nand_pin_mux[] = { + {OFFSET(gpmc_ad0), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad1), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad2), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad3), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad4), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad5), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad6), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad7), (MODE(0) | PULLUDDIS | RXACTIVE)}, +#ifdef CONFIG_SYS_NAND_BUSWIDTH_16BIT + {OFFSET(gpmc_ad8), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad9), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad10), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad11), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad12), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad13), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad14), (MODE(0) | PULLUDDIS | RXACTIVE)}, + {OFFSET(gpmc_ad15), (MODE(0) | PULLUDDIS | RXACTIVE)}, +#endif + {OFFSET(gpmc_wait0), (MODE(0) | PULLUP_EN | RXACTIVE)}, + {OFFSET(gpmc_wpn), (MODE(7) | PULLUP_EN)}, + {OFFSET(gpmc_csn0), (MODE(0) | PULLUP_EN)}, + {OFFSET(gpmc_wen), (MODE(0) | PULLDOWN_EN)}, + {OFFSET(gpmc_oen_ren), (MODE(0) | PULLDOWN_EN)}, + {OFFSET(gpmc_advn_ale), (MODE(0) | PULLDOWN_EN)}, + {OFFSET(gpmc_be0n_cle), (MODE(0) | PULLDOWN_EN)}, + {-1}, +}; +#endif + +void enable_uart0_pin_mux(void) +{ + configure_module_pin_mux(uart0_pin_mux); +} + +void enable_i2c0_pin_mux(void) +{ + configure_module_pin_mux(i2c0_pin_mux); +} + +void enable_board_pin_mux(void) +{ +#ifdef CONFIG_NAND + configure_module_pin_mux(nand_pin_mux); +#endif + configure_module_pin_mux(adc_voltages_en); + configure_module_pin_mux(asp_power_en); + configure_module_pin_mux(switch_off_3v6_pin_mux); +} -- cgit