[U-Boot] [PATCH v1] arm: Add support for PDU001
Simon Glass
sjg at chromium.org
Wed Oct 26 18:30:37 CEST 2016
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?
> +
> +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
> +
> +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?
> +
> + /*
> + * 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?
> +}
> +
> +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.
> +};
> +
> +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
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