From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felix Brack Date: Mon, 31 Oct 2016 15:54:15 +0100 Subject: [U-Boot] [PATCH v1] arm: Add support for PDU001 In-Reply-To: References: <1476871979-20432-1-git-send-email-fb@ltec.ch> Message-ID: <7902a8d6-215d-ef34-fa50-4492e93be871@ltec.ch> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hello Simon, On 26.10.2016 18:30, Simon Glass wrote: > Hi Felix, > > On 19 October 2016 at 04:12, Felix Brack wrote: >> This patch adds support for the PDU001 board. >> >> Signed-off-by: Felix Brack >> --- >> >> arch/arm/Kconfig | 1 + >> arch/arm/cpu/armv7/am33xx/Kconfig | 9 ++ >> board/eets/pdu001/Kconfig | 66 ++++++++++ >> board/eets/pdu001/MAINTAINERS | 6 + >> board/eets/pdu001/Makefile | 13 ++ >> board/eets/pdu001/README | 35 +++++ >> board/eets/pdu001/board.c | 263 ++++++++++++++++++++++++++++++++++++++ >> board/eets/pdu001/board.h | 30 +++++ >> board/eets/pdu001/mux.c | 146 +++++++++++++++++++++ >> configs/pdu001_defconfig | 33 +++++ >> include/configs/pdu001.h | 117 +++++++++++++++++ >> 11 files changed, 719 insertions(+) >> create mode 100644 board/eets/pdu001/Kconfig >> create mode 100644 board/eets/pdu001/MAINTAINERS >> create mode 100644 board/eets/pdu001/Makefile >> create mode 100644 board/eets/pdu001/README >> create mode 100644 board/eets/pdu001/board.c >> create mode 100644 board/eets/pdu001/board.h >> create mode 100644 board/eets/pdu001/mux.c >> create mode 100644 configs/pdu001_defconfig >> create mode 100644 include/configs/pdu001.h >> >> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig >> index d7a9b11..7ab966b 100644 >> --- a/arch/arm/Kconfig >> +++ b/arch/arm/Kconfig >> @@ -1020,6 +1020,7 @@ source "board/vscom/baltos/Kconfig" >> source "board/woodburn/Kconfig" >> source "board/work-microwave/work_92105/Kconfig" >> source "board/zipitz2/Kconfig" >> +source "board/eets/pdu001/Kconfig" >> >> source "arch/arm/Kconfig.debug" >> >> diff --git a/arch/arm/cpu/armv7/am33xx/Kconfig b/arch/arm/cpu/armv7/am33xx/Kconfig >> index 8fd32c2..d5217b1 100644 >> --- a/arch/arm/cpu/armv7/am33xx/Kconfig >> +++ b/arch/arm/cpu/armv7/am33xx/Kconfig >> @@ -79,6 +79,15 @@ config TARGET_PEPPER >> select DM_SERIAL >> select DM_GPIO >> >> +config TARGET_PDU001 >> + bool "Support PDU001" >> + select DM >> + select DM_SERIAL >> + help >> + Support for PDU001 platform developed by EETS GmbH. >> + The PDU001 is a processor and display unit developed around >> + the Computing-Module m2 from bytes at work AG. >> + >> endchoice >> >> endif >> diff --git a/board/eets/pdu001/Kconfig b/board/eets/pdu001/Kconfig >> new file mode 100644 >> index 0000000..fe5f520 >> --- /dev/null >> +++ b/board/eets/pdu001/Kconfig >> @@ -0,0 +1,66 @@ >> +# Copyright (c) 2016, EETS GmbH >> +# >> +# SPDX-License-Identifier: GPL-2.0+ >> +# >> + >> +if TARGET_PDU001 >> + >> +config SYS_BOARD >> + default "pdu001" >> + >> +config SYS_VENDOR >> + default "eets" >> + >> +config SYS_SOC >> + default "am33xx" >> + >> +config SYS_CONFIG_NAME >> + default "pdu001" >> + >> +config CONS_INDEX >> + int "UART used for console" >> + range 1 6 >> + default 4 >> + help >> + The AM335x SoC has a total of 6 UARTs (UART0 to UART5 as referenced >> + in documentation, etc) available to it. The best choice for the >> + PDU001 is UART3 as it is wired to the header K2; enter 4 here to >> + use UART3. UART0 is connected to the EIA-485 transceiver. If you >> + really need to use it, you are advised to remove the transceiver U14 >> + from the board. UART1 is wired to the backplane and therefore >> + accessible from there or by the backplane connector K1 of the PDU. >> + Any other UART then UART3 (enter 4 here), UART1 (enter 2 here) or >> + UART0 (enter 1 here) are not sensible since they are not sired to >> + any connector and therefore difficult to access. >> + >> +choice >> + prompt "State of Run LED" >> + default PDU001_RUN_LED_RED >> + help >> + The PDU001 has a bi-color (red/green) LED labeled 'Run' which >> + can be used to indicate the operating state of the board. By >> + default it will be lit red by U-Boot. Later in the start-up >> + process it can be changed to green (or heartbeat or anything else) >> + by the kernel or some other software. >> + >> +config RUN_LED_RED >> + bool >> + prompt "Red" >> + help >> + Lit Run LED red. > > What does this mean? Can you expand the help a bit? Sorry, the extended help text is 'one level higher' at the 'choice' tag. I will move it to the corresponding 'config' tags. > >> + >> +config RUN_LED_GREEN >> + bool >> + prompt "Green" >> + help >> + Lit Run LED green. >> + >> +config RUN_LED_OFF >> + bool >> + prompt "Off" >> + help >> + Do not lit Run LED. >> + >> +endchoice >> + >> +endif >> diff --git a/board/eets/pdu001/MAINTAINERS b/board/eets/pdu001/MAINTAINERS >> new file mode 100644 >> index 0000000..b5edc4d >> --- /dev/null >> +++ b/board/eets/pdu001/MAINTAINERS >> @@ -0,0 +1,6 @@ >> +PDU001 BOARD >> +M: Felix Brack >> +S: Maintained >> +F: board/eets/pdu001/ >> +F: include/configs/pdu001.h >> +F: configs/pdu001_defconfig >> diff --git a/board/eets/pdu001/Makefile b/board/eets/pdu001/Makefile >> new file mode 100644 >> index 0000000..804ac37 >> --- /dev/null >> +++ b/board/eets/pdu001/Makefile >> @@ -0,0 +1,13 @@ >> +# >> +# Makefile >> +# >> +# Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ >> +# >> +# SPDX-License-Identifier: GPL-2.0+ >> +# >> + >> +ifeq ($(CONFIG_SKIP_LOWLEVEL_INIT),) >> +obj-y := mux.o >> +endif >> + >> +obj-y += board.o >> diff --git a/board/eets/pdu001/README b/board/eets/pdu001/README >> new file mode 100644 >> index 0000000..c7e4c31 >> --- /dev/null >> +++ b/board/eets/pdu001/README >> @@ -0,0 +1,35 @@ >> +# Copyright (c) 2016, EETS GmbH >> +# >> +# SPDX-License-Identifier: GPL-2.0+ >> +# >> + >> +Summary >> +======= >> + >> +This document covers the PDU001 target. >> + >> +Hardware >> +======== >> + >> +The PDU-001 (Processor and Display Unit) is a plugin card for 19" racks. It is >> +manufactured by EETS GmbH (https://www.eets.ch). The core of the board is a m2 >> +SOM from bytes at work (https://www.bytesatwork.ch) which in turn is based on >> +AM3352 SOC from TI (http://www.ti.com). >> + >> +Customization >> +============= >> + >> +As usual the console serial interface is set by CONFIG_CONS_INDEX. Best choice >> +is 4 here since UART3 is wired to the connector K2. >> +The Run LED on the PDU-001 can be turned on red by setting CONFIG_RUN_LED_RED >> +or green by setting CONFIG_RUN_LED_GREEN. Setting CONFIG_RUN_LED_OFF will turn >> +off the Run LED. >> + >> +Booting >> +======= >> + >> +The system boots from either eMMC or SD card cage. It will first try to boot >> +from the SD card cage. If this fails (missing or unbootable SD card) it will >> +try to boot from the internal eMMC. The root file system is always expected to >> +be located in the second partition of the device (eMMC or SD card) that pro- >> +vided the boot loader. > > Great to have this doc. > >> diff --git a/board/eets/pdu001/board.c b/board/eets/pdu001/board.c >> new file mode 100644 >> index 0000000..d6b41da >> --- /dev/null >> +++ b/board/eets/pdu001/board.c >> @@ -0,0 +1,263 @@ >> +/* >> + * board.c >> + * >> + * Board functions for EETS PDU001 board >> + * >> + * Copyright (C) 2016, EETS GmbH, http://www.eets.ch/ >> + * >> + * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ >> + * >> + * SPDX-License-Identifier: GPL-2.0+ >> + */ >> + >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include >> +#include "board.h" > > Check header file ordering at the bottom of this page: > > http://www.denx.de/wiki/U-Boot/CodingStyle > Fixed. >> + >> +DECLARE_GLOBAL_DATA_PTR; >> + >> +/* >> + * boot device save register >> + * ------------------------- >> + * The boot device can be quired by 'spl_boot_device()' in >> + * 'am33xx_spl_board_init'. However it can't be saved in the u-boot >> + * environment here. In turn 'spl_boot_device' can't be called in >> + * 'board_late_init' which allows writing to u-boot environment. >> + * To get the boot device from 'am33xx_spl_board_init' to >> + * 'board_late_init' we therefore use a scratch register from the RTC. >> + */ >> +#define CONFIG_SYS_RTC_SCRATCH0 0x60 >> +#define BOOT_DEVICE_SAVE_REGISTER (RTC_BASE + CONFIG_SYS_RTC_SCRATCH0) >> + >> +#ifdef CONFIG_SPL_BUILD >> +static void save_boot_device(void) >> +{ >> + *((u32 *)(BOOT_DEVICE_SAVE_REGISTER)) = spl_boot_device(); >> +} >> +#endif >> + >> +u32 boot_device(void) >> +{ >> + return *((u32 *)(BOOT_DEVICE_SAVE_REGISTER)); >> +} >> + >> +/* Store the boot device in the environment variable 'boot_device' */ >> +static void setenv_boot_device(void) >> +{ >> + switch (boot_device()) { >> + case BOOT_DEVICE_MMC1: { >> + setenv("boot_device", "emmc"); >> + break; >> + } >> + case BOOT_DEVICE_MMC2: { >> + setenv("boot_device", "sdcard"); >> + break; >> + } >> + default: { >> + setenv("boot_device", "unknown"); >> + break; >> + } >> + } >> +} >> + >> +static void set_run_led(struct i2c_adapter *adap) >> +{ >> + uint8_t val = 0; >> + >> + if (IS_ENABLED(CONFIG_RUN_LED_RED)) >> + val = 1; >> + else if (IS_ENABLED(CONFIG_RUN_LED_GREEN)) >> + val = 4; >> + >> + adap->write(adap, 0x60, 6, 1, &val, 1); >> +} >> + >> +/* Set 'serial#' to the EUI-48 value of board node ID chip */ >> +static void setenv_serial(struct i2c_adapter *adap) >> +{ >> + uint8_t valb = 1; >> + char serial[13]; >> + int n; >> + >> + for (n = 0; n < sizeof(serial); n += 2) { >> + adap->read(adap, 0x50, 0xFA+n/2, 1, &valb, 1); >> + sprintf(serial+n, "%02X", valb); >> + } >> + serial[12] = '\0'; >> + setenv("serial#", serial); >> +} >> + >> +#ifdef CONFIG_SPL_BUILD >> +static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; >> +#endif >> + >> +#ifndef CONFIG_SKIP_LOWLEVEL_INIT >> +static const struct ddr_data ddr2_data = { >> + .datardsratio0 = MT47H128M16RT25E_RD_DQS, >> + .datafwsratio0 = MT47H128M16RT25E_PHY_FIFO_WE, >> + .datawrsratio0 = MT47H128M16RT25E_PHY_WR_DATA, >> +}; >> + >> +static const struct cmd_control ddr2_cmd_ctrl_data = { >> + .cmd0csratio = MT47H128M16RT25E_RATIO, >> + .cmd1csratio = MT47H128M16RT25E_RATIO, >> + .cmd2csratio = MT47H128M16RT25E_RATIO, >> +}; >> + >> +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, >> +}; >> + >> +#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) >> +{ >> + int mpu_vdd; >> + int sil_rev; >> + >> + /* Get the frequency */ >> + dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); >> + >> + /* >> + * The PDU001 (more precisely the computing module m2) uses 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; > > Can this be updated to use driver model for I2C? Also, how about a > PMIC driver instead of writing I2C directly? > Yes to both. A PMIC driver for the TI TPS65910 doesn't exist yet, correct? >> + >> + /* >> + * 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); >> + >> + /* save boot device for later use by 'board_late_init' */ >> + save_boot_device(); >> +} >> + >> +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) >> +{ >> +#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 > > Do you need to use CONFIG_CONS_INDEX? Can you find the correct port > from device tree? > Will be fixed. >> +} >> + >> +void set_mux_conf_regs(void) >> +{ >> + enable_board_pin_mux(); >> +} >> + >> +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) >> +{ >> + config_ddr(266, &ioregs, &ddr2_data, >> + &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0); >> +} >> +#endif /* CONFIG_SKIP_LOWLEVEL_INIT */ >> + >> +/* >> + * Basic board specific setup. Pinmux has been handled already. >> + */ >> +int board_init(void) >> +{ >> +#ifdef CONFIG_HW_WATCHDOG >> + hw_watchdog_init(); >> +#endif >> + >> + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; >> + return 0; >> +} >> + >> +#ifdef CONFIG_BOARD_LATE_INIT >> +int board_late_init(void) >> +{ >> + struct i2c_adapter *adap; >> + >> + setenv_boot_device(); >> + >> + /* second I2C bus connects to node ID and front panel LED chip */ >> + adap = I2C_ADAP_NR(1); >> + adap->init(adap, adap->speed, adap->slaveaddr); >> + if (adap) { >> + set_run_led(adap); >> + setenv_serial(adap); >> + } >> + >> + return 0; >> +} >> +#endif >> diff --git a/board/eets/pdu001/board.h b/board/eets/pdu001/board.h >> new file mode 100644 >> index 0000000..6f6947d >> --- /dev/null >> +++ b/board/eets/pdu001/board.h >> @@ -0,0 +1,30 @@ >> +/* >> + * board.h >> + * >> + * EETS GmbH PDU001 board information header >> + * >> + * Copyright (C) 2016 EETS GmbH - http://www.eets.ch/ >> + * >> + * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ >> + * >> + * SPDX-License-Identifier: GPL-2.0+ >> + */ >> + >> +#ifndef _BOARD_H_ >> +#define _BOARD_H_ >> + >> +/* >> + * We have three pin mux functions that must exist. We must be able to >> + * enable uart3, for initial output and i2c0 to access PMIC. We then >> + * have a main pinmux function that can be overridden to enable all >> + * other pinmux that is required on the board. >> + */ >> +void enable_uart0_pin_mux(void); >> +void enable_uart1_pin_mux(void); >> +void enable_uart2_pin_mux(void); >> +void enable_uart3_pin_mux(void); >> +void enable_uart4_pin_mux(void); >> +void enable_uart5_pin_mux(void); >> +void enable_i2c0_pin_mux(void); >> +void enable_board_pin_mux(void); >> +#endif >> diff --git a/board/eets/pdu001/mux.c b/board/eets/pdu001/mux.c >> new file mode 100644 >> index 0000000..06deb7b >> --- /dev/null >> +++ b/board/eets/pdu001/mux.c >> @@ -0,0 +1,146 @@ >> +/* >> + * mux.c >> + * >> + * Copyright (C) 2016 EETS GmbH - http://www.eets.ch/ >> + * >> + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ >> + * >> + * SPDX-License-Identifier: GPL-2.0+ >> + */ >> + >> +#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)}, /* UART0_RXD */ >> + {OFFSET(uart0_txd), (MODE(0) | PULLUDEN)}, /* UART0_TXD */ >> + {-1}, > > Really this should go in a pinctrl driver. > Agreed. A pinctrl driver for the TI AM335X SOC doesn't exist yet, correct? >> +}; >> + >> +static struct module_pin_mux uart1_pin_mux[] = { >> + {OFFSET(uart1_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)}, /* UART1_RXD */ >> + {OFFSET(uart1_txd), (MODE(0) | PULLUDEN)}, /* UART1_TXD */ >> + {-1}, >> +}; >> + >> +static struct module_pin_mux uart2_pin_mux[] = { >> + {OFFSET(spi0_sclk), (MODE(1) | PULLUP_EN | RXACTIVE)}, /* UART2_RXD */ >> + {OFFSET(spi0_d0), (MODE(1) | PULLUDEN)}, /* UART2_TXD */ >> + {-1}, >> +}; >> + >> +static struct module_pin_mux uart3_pin_mux[] = { >> + {OFFSET(spi0_cs1), (MODE(1) | PULLUP_EN | RXACTIVE)}, /* UART3_RXD */ >> + {OFFSET(ecap0_in_pwm0_out), (MODE(1) | PULLUDEN)}, /* UART3_TXD */ >> + {-1}, >> +}; >> + >> +static struct module_pin_mux uart4_pin_mux[] = { >> + {OFFSET(gpmc_wait0), (MODE(6) | PULLUP_EN | RXACTIVE)}, /* UART4_RXD */ >> + {OFFSET(gpmc_wpn), (MODE(6) | PULLUDEN)}, /* UART4_TXD */ >> + {-1}, >> +}; >> + >> +static struct module_pin_mux uart5_pin_mux[] = { >> + {OFFSET(lcd_data9), (MODE(4) | PULLUP_EN | RXACTIVE)}, /* UART5_RXD */ >> + {OFFSET(lcd_data8), (MODE(4) | PULLUDEN)}, /* UART5_TXD */ >> + {-1}, >> +}; >> + >> +/* 2GB eMMC */ >> +static struct module_pin_mux mmc0_pin_mux[] = { >> + {OFFSET(mmc0_dat3), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT3 */ >> + {OFFSET(mmc0_dat2), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT2 */ >> + {OFFSET(mmc0_dat1), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT1 */ >> + {OFFSET(mmc0_dat0), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_DAT0 */ >> + {OFFSET(mmc0_clk), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CLK */ >> + {OFFSET(mmc0_cmd), (MODE(0) | RXACTIVE | PULLUP_EN)}, /* MMC0_CMD */ >> + {-1}, >> +}; >> + >> +/* SD-Card cage */ >> +static struct module_pin_mux mmc1_pin_mux[] = { >> + {OFFSET(gpmc_ad3), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT3 */ >> + {OFFSET(gpmc_ad2), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT2 */ >> + {OFFSET(gpmc_ad1), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT1 */ >> + {OFFSET(gpmc_ad0), (MODE(1) | RXACTIVE | PULLUP_EN)}, /* MMC1_DAT0 */ >> + {OFFSET(gpmc_csn1), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CLK */ >> + {OFFSET(gpmc_csn2), (MODE(2) | RXACTIVE | PULLUP_EN)}, /* MMC1_CMD */ >> + {OFFSET(gpmc_advn_ale), (MODE(7) | RXACTIVE | >> + PULLUP_EN | PULLUDDIS)}, /* MMC1_CD */ >> + {-1}, >> +}; >> + >> +static struct module_pin_mux i2c0_pin_mux[] = { >> + {OFFSET(i2c0_sda), (MODE(0) | RXACTIVE | >> + PULLUDEN | SLEWCTRL)}, /* I2C_DATA */ >> + {OFFSET(i2c0_scl), (MODE(0) | RXACTIVE | >> + PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */ >> + {-1}, >> +}; >> + >> +static struct module_pin_mux i2c1_pin_mux[] = { >> + {OFFSET(spi0_d1), (MODE(2) | RXACTIVE | >> + PULLUDEN | SLEWCTRL)}, /* I2C_DATA */ >> + {OFFSET(spi0_cs0), (MODE(2) | RXACTIVE | >> + PULLUDEN | SLEWCTRL)}, /* I2C_SCLK */ >> + {-1}, >> +}; >> + >> +static struct module_pin_mux spi1_pin_mux[] = { >> + {OFFSET(mcasp0_aclkx), (MODE(3) | RXACTIVE | PULLUDEN)}, /* SPI1_SCLK */ >> + {OFFSET(mcasp0_fsx), (MODE(3) | RXACTIVE | >> + PULLUDEN | PULLUP_EN)}, /* SPI1_D0 */ >> + {OFFSET(mcasp0_axr0), (MODE(3) | RXACTIVE | PULLUDEN)}, /* SPI1_D1 */ >> + {OFFSET(mcasp0_ahclkr), (MODE(3) | RXACTIVE | >> + PULLUDEN | PULLUP_EN)}, /* SPI1_CS0 */ >> + {-1}, >> +}; >> + >> +void enable_uart0_pin_mux(void) >> +{ >> + configure_module_pin_mux(uart0_pin_mux); >> +} >> + >> +void enable_uart1_pin_mux(void) >> +{ >> + configure_module_pin_mux(uart1_pin_mux); >> +} >> + >> +void enable_uart2_pin_mux(void) >> +{ >> + configure_module_pin_mux(uart2_pin_mux); >> +} >> + >> +void enable_uart3_pin_mux(void) >> +{ >> + configure_module_pin_mux(uart3_pin_mux); >> +} >> + >> +void enable_uart4_pin_mux(void) >> +{ >> + configure_module_pin_mux(uart4_pin_mux); >> +} >> + >> +void enable_uart5_pin_mux(void) >> +{ >> + configure_module_pin_mux(uart5_pin_mux); >> +} >> + >> +void enable_i2c0_pin_mux(void) >> +{ >> + configure_module_pin_mux(i2c0_pin_mux); >> +} >> + >> +void enable_board_pin_mux(void) >> +{ >> + configure_module_pin_mux(mmc0_pin_mux); >> + configure_module_pin_mux(mmc1_pin_mux); >> + configure_module_pin_mux(i2c1_pin_mux); >> + configure_module_pin_mux(spi1_pin_mux); >> +} >> diff --git a/configs/pdu001_defconfig b/configs/pdu001_defconfig >> new file mode 100644 >> index 0000000..74f1365 >> --- /dev/null >> +++ b/configs/pdu001_defconfig >> @@ -0,0 +1,33 @@ >> +CONFIG_ARM=y >> +CONFIG_AM33XX=y >> +CONFIG_TARGET_PDU001=y >> +CONFIG_LOCALVERSION="-EETS-1.0.0" >> +CONFIG_AUTOBOOT_KEYED=y >> +CONFIG_AUTOBOOT_PROMPT="Press SPACE to abort autoboot in %d seconds\n" >> +CONFIG_AUTOBOOT_STOP_STR=" " >> +CONFIG_HUSH_PARSER=y >> +CONFIG_SYS_NS16550=y >> +CONFIG_OF_LIBFDT=y >> +CONFIG_CMD_MEMINFO=y >> +CONFIG_CMD_BOOTZ=y >> +CONFIG_CMD_FAT=y >> +CONFIG_CMD_I2C=y >> +# CONFIG_CMD_IMLS is not set >> +# CONFIG_CMD_NET is not set >> +# CONFIG_CMD_NFS is not set >> +# CONFIG_CMD_FLASH is not set >> +# CONFIG_CMD_FPGA is not set >> +CONFIG_SPL=y >> +CONFIG_SPL_STACK_R_ADDR=0x82000000 >> +CONFIG_SPL_STACK_R=y >> +CONFIG_SPL_I2C_SUPPORT=y >> +CONFIG_SPL_WATCHDOG_SUPPORT=y >> +CONFIG_SPL_LIBCOMMON_SUPPORT=y >> +CONFIG_SPL_LIBGENERIC_SUPPORT=y >> +CONFIG_SPL_POST_MEM_SUPPORT=y >> +CONFIG_SPL_RAM_DEVICE=y >> +CONFIG_SPL_SERIAL_SUPPORT=y >> +CONFIG_SPL_FAT_SUPPORT=y >> +CONFIG_SPL_LIBDISK_SUPPORT=y >> +CONFIG_SPL_YMODEM_SUPPORT=y >> +CONFIG_SPL_MMC_SUPPORT=y >> diff --git a/include/configs/pdu001.h b/include/configs/pdu001.h >> new file mode 100644 >> index 0000000..aae970e >> --- /dev/null >> +++ b/include/configs/pdu001.h >> @@ -0,0 +1,117 @@ >> +/* >> + * pdu001.h >> + * >> + * Copyright (C) 2016 EETS GmbH - http://www.eets.ch/ >> + * >> + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ >> + * >> + * SPDX-License-Identifier: GPL-2.0+ >> + */ >> + >> +#ifndef __CONFIG_PDU001_H >> +#define __CONFIG_PDU001_H >> + >> +#include >> + >> +/* Using 32K of volatile storage for environment */ >> +#define CONFIG_ENV_IS_NOWHERE >> +#define CONFIG_ENV_SIZE 0x4000 >> + >> +/* Things we do not use */ >> +#undef CONFIG_CMD_SPI >> +#undef CONFIG_CMD_SAVES >> +#undef CONFIG_CMD_PART >> +#undef CONFIG_CMD_EXT2 >> +#undef CONFIG_CMD_FS_GENERIC >> +#undef CONFIG_CMD_FS_UUID >> +#undef CONFIG_CMD_MII >> +#undef CONFIG_CMD_PING >> +#undef CONFIG_CMD_DHCP >> +#undef CONFIG_BOOTP_DNS >> +#undef CONFIG_BOOTP_DNS2 >> +#undef CONFIG_BOOTP_SEND_HOSTNAME >> +#undef CONFIG_BOOTP_GATEWAY >> +#undef CONFIG_BOOTP_SUBNETMASK >> +#undef CONFIG_DRIVER_TI_CPSW >> +#undef CONFIG_MII >> + >> +/* Shorten the default boot delay of 2 seconds */ >> +#undef CONFIG_BOOTDELAY >> +#define CONFIG_BOOTDELAY 1 >> + >> +/* We do not need booting LINUX from SPL */ >> +#undef CONFIG_SPL_OS_BOOT >> + >> +#ifndef CONFIG_SPL_BUILD >> +#define CONFIG_TIMESTAMP >> +#endif >> + >> +#define MACH_TYPE_PDU001 5075 >> +#define CONFIG_MACH_TYPE MACH_TYPE_PDU001 >> +#define CONFIG_BOARD_LATE_INIT >> + >> +/* Clock Defines */ >> +#define V_OSCK 24000000 /* Clock output from T2 */ >> +#define V_SCLK (V_OSCK) >> + >> +#if CONFIG_CONS_INDEX == 1 >> + #define CONSOLE_DEV "ttyO0" >> +#elif CONFIG_CONS_INDEX == 2 >> + #define CONSOLE_DEV "ttyO1" >> +#elif CONFIG_CONS_INDEX == 3 >> + #define CONSOLE_DEV "ttyO2" >> +#elif CONFIG_CONS_INDEX == 4 >> + #define CONSOLE_DEV "ttyO3" >> +#elif CONFIG_CONS_INDEX == 5 >> + #define CONSOLE_DEV "ttyO4" >> +#elif CONFIG_CONS_INDEX == 6 >> + #define CONSOLE_DEV "ttyO5" >> +#endif >> + >> +#define CONFIG_BOOTCOMMAND \ >> + "run eval_boot_device;" \ >> + "setenv bootargs console=${console} " \ >> + "root=/dev/mmcblk${mmc_boot}p${root_fs_partition} " \ >> + "rootfstype=ext4 " \ >> + "rootwait " \ >> + "rootdelay=1;" \ >> + "fatload mmc ${mmc_boot} ${fdtaddr} ${fdtfile};" \ >> + "fatload mmc ${mmc_boot} ${loadaddr} ${bootfile};" \ >> + "bootz ${loadaddr} - ${fdtaddr}" >> + >> +#ifndef CONFIG_SPL_BUILD >> +#define CONFIG_EXTRA_ENV_SETTINGS \ >> + DEFAULT_LINUX_BOOT_ENV \ >> + "fdtfile=pdu001.dtb\0" \ >> + "bootfile=zImage\0" \ >> + "console=" CONSOLE_DEV ",115200n8\0" \ >> + "root_fs_partition=2\0" \ >> + "eval_boot_device=" \ >> + "if test $boot_device = emmc; then " \ >> + "setenv mmc_boot 0;" \ >> + "elif test $boot_device = sdcard; then " \ >> + "setenv mmc_boot 1;" \ >> + "else " \ >> + "echo Bootdevice is neither MMC0 nor MMC1;" \ >> + "reset;" \ >> + "fi;" \ >> + "\0" >> +#endif >> + >> +/* NS16550 Configuration */ >> +#define CONFIG_SYS_NS16550_COM1 0x44e09000 /* UART0 */ >> +#define CONFIG_SYS_NS16550_COM2 0x48022000 /* UART1 */ >> +#define CONFIG_SYS_NS16550_COM3 0x48024000 /* UART2 */ >> +#define CONFIG_SYS_NS16550_COM4 0x481a6000 /* UART3 */ >> +#define CONFIG_SYS_NS16550_COM5 0x481a8000 /* UART4 */ >> +#define CONFIG_SYS_NS16550_COM6 0x481aa000 /* UART5 */ >> +#define CONFIG_BAUDRATE 115200 >> + >> +/* PMIC support */ >> +#define CONFIG_POWER_TPS65910 >> + >> +/* SPL */ >> +#define CONFIG_SPL_POWER_SUPPORT >> +#define CONFIG_SPL_LDSCRIPT "$(CPUDIR)/am33xx/u-boot-spl.lds" >> + >> +#endif /* ! __CONFIG_PDU001_H */ >> -- >> 2.7.4 >> > > Regards, > Simon > Regards and many thanks for taking your time, Felix