[U-Boot] [PATCH v1] arm: Add support for PDU001
Felix Brack
fb at ltec.ch
Mon Oct 31 15:54:15 CET 2016
Hello Simon,
On 26.10.2016 18:30, Simon Glass wrote:
> Hi Felix,
>
> On 19 October 2016 at 04:12, Felix Brack <fb at ltec.ch> wrote:
>> This patch adds support for the PDU001 board.
>>
>> Signed-off-by: Felix Brack <fb at ltec.ch>
>> ---
>>
>> 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 <f.brack at eets.ch>
>> +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 <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 <power/tps65910.h>
>> +#include <environment.h>
>> +#include <watchdog.h>
>> +#include <environment.h>
>> +#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 <common.h>
>> +#include <asm/arch/sys_proto.h>
>> +#include <asm/arch/hardware.h>
>> +#include <asm/arch/mux.h>
>> +#include <asm/io.h>
>> +#include <i2c.h>
>> +#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 <configs/ti_am335x_common.h>
>> +
>> +/* 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
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