[U-Boot] [PATCH v2 07/13] board: Add Microchip PIC32MZ[DA]-Starter-Kit board.

Purna Chandra Mandal purna.mandal at microchip.com
Wed Jan 6 10:51:41 CET 2016


On 01/06/2016 02:06 AM, Daniel Schwierzeck wrote:
> 2016-01-04 15:01 GMT+01:00 Purna Chandra Mandal <purna.mandal at microchip.com>:
>> This adds support for Microchip PIC32MZ[DA] Starter Kit board
>> based on a PIC32MZ[DA] family of microcontroller.
>>
>> Signed-off-by: Purna Chandra Mandal <purna.mandal at microchip.com>
>>
>> ---
>>
>> Changes in v2:
>> - move CONFIG_SYS_TEXT_BASE (from board/<>/config.mk) to include/configs/<board>.h
>>
>>  arch/mips/dts/Makefile                |   2 +-
>>  arch/mips/dts/pic32mzda_sk.dts        |  38 +++++++++++++
>>  arch/mips/mach-pic32/Kconfig          |   7 +++
>>  board/microchip/pic32mzda/Kconfig     |  13 +++++
>>  board/microchip/pic32mzda/MAINTAINERS |   6 ++
>>  board/microchip/pic32mzda/Makefile    |   7 +++
>>  board/microchip/pic32mzda/README      |  22 ++++++++
>>  board/microchip/pic32mzda/pic32mzda.c |  31 +++++++++++
>>  configs/pic32mzdask_defconfig         |  21 +++++++
>>  include/configs/pic32mzdask.h         | 100 ++++++++++++++++++++++++++++++++++
>>  10 files changed, 246 insertions(+), 1 deletion(-)
>>  create mode 100644 arch/mips/dts/pic32mzda_sk.dts
>>  create mode 100644 board/microchip/pic32mzda/Kconfig
>>  create mode 100644 board/microchip/pic32mzda/MAINTAINERS
>>  create mode 100644 board/microchip/pic32mzda/Makefile
>>  create mode 100644 board/microchip/pic32mzda/README
>>  create mode 100644 board/microchip/pic32mzda/pic32mzda.c
>>  create mode 100644 configs/pic32mzdask_defconfig
>>  create mode 100644 include/configs/pic32mzdask.h
>>
>> diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
>> index 47b6eb5..b513918 100644
>> --- a/arch/mips/dts/Makefile
>> +++ b/arch/mips/dts/Makefile
>> @@ -2,7 +2,7 @@
>>  # SPDX-License-Identifier:     GPL-2.0+
>>  #
>>
>> -dtb-y +=
>> +dtb-$(CONFIG_TARGET_PIC32MZDASK) += pic32mzda_sk.dtb
>>
>>  targets += $(dtb-y)
>>
>> diff --git a/arch/mips/dts/pic32mzda_sk.dts b/arch/mips/dts/pic32mzda_sk.dts
>> new file mode 100644
>> index 0000000..99e7f64
>> --- /dev/null
>> +++ b/arch/mips/dts/pic32mzda_sk.dts
>> @@ -0,0 +1,38 @@
>> +/*
>> + * Copyright (C) 2015 Purna Chandra Mandal, purna.mandal at microchip.com
>> + *
>> + * SPDX-License-Identifier:    GPL-2.0+
>> + */
>> +
>> +/dts-v1/;
>> +
>> +#include "pic32mzda.dtsi"
>> +
>> +/ {
>> +       model = "Microchip PIC32MZDASK";
>> +       compatible = "microchip,pic32mzdask", "microchip,pic32mzda";
>> +
>> +       aliases {
>> +               console = &uart2;
>> +               serial0 = &uart2;
>> +       };
>> +
>> +       chosen {
>> +               stdout-path = "serial0:115200n8";
>> +       };
>> +};
>> +
>> +&clock {
>> +       status = "okay";
>> +       u-boot,dm-pre-reloc;
>> +};
>> +
>> +&pinctrl {
>> +       status = "okay";
>> +       u-boot,dm-pre-reloc;
>> +};
>> +
>> +&uart2 {
>> +       status = "okay";
>> +       u-boot,dm-pre-reloc;
>> +};
>> diff --git a/arch/mips/mach-pic32/Kconfig b/arch/mips/mach-pic32/Kconfig
>> index a394791..f357fc6 100644
>> --- a/arch/mips/mach-pic32/Kconfig
>> +++ b/arch/mips/mach-pic32/Kconfig
>> @@ -26,6 +26,13 @@ endchoice
>>  choice
>>         prompt "Board select"
>>
>> +config TARGET_PIC32MZDASK
>> +       bool "Microchip PIC32MZ[DA] Starter Kit"
>> +       depends on SOC_PIC32MZDA
>> +       help
>> +         This supports Microchip PIC32MZ[DA] Starter Kit.
>> +
>>  endchoice
>>
>> +source "board/microchip/pic32mzda/Kconfig"
>>  endmenu
>> diff --git a/board/microchip/pic32mzda/Kconfig b/board/microchip/pic32mzda/Kconfig
>> new file mode 100644
>> index 0000000..8acb393
>> --- /dev/null
>> +++ b/board/microchip/pic32mzda/Kconfig
>> @@ -0,0 +1,13 @@
>> +
>> +if TARGET_PIC32MZDASK
>> +
>> +config SYS_BOARD
>> +       default "pic32mzda"
>> +
>> +config SYS_VENDOR
>> +       default "microchip"
>> +
>> +config SYS_CONFIG_NAME
>> +       default "pic32mzdask"
>> +
>> +endif
>> diff --git a/board/microchip/pic32mzda/MAINTAINERS b/board/microchip/pic32mzda/MAINTAINERS
>> new file mode 100644
>> index 0000000..c934f1a
>> --- /dev/null
>> +++ b/board/microchip/pic32mzda/MAINTAINERS
>> @@ -0,0 +1,6 @@
>> +PIC32MZDASK BOARD
>> +M:     Purna Chandra Mandal <purna.mandal at microchip.com>
>> +S:     Maintained
>> +F:     board/microchip/pic32mzda/
>> +F:     include/configs/pic32mzdask.h
>> +F:     configs/pic32mzdask_defconfig
>> diff --git a/board/microchip/pic32mzda/Makefile b/board/microchip/pic32mzda/Makefile
>> new file mode 100644
>> index 0000000..3629530
>> --- /dev/null
>> +++ b/board/microchip/pic32mzda/Makefile
>> @@ -0,0 +1,7 @@
>> +#
>> +# (C) Copyright 2015
>> +# Purna Chandra Mandal, purna.mandal at microchip.com.
>> +#
>> +# SPDX-License-Identifier:      GPL-2.0+
>> +#
>> +obj-y := pic32mzda.o
>> diff --git a/board/microchip/pic32mzda/README b/board/microchip/pic32mzda/README
>> new file mode 100644
>> index 0000000..91d16ab
>> --- /dev/null
>> +++ b/board/microchip/pic32mzda/README
>> @@ -0,0 +1,22 @@
>> +/*
>> + * (c) 2015 Purna Chandra Mandal <purna.mandal at microchip.com>
>> + */
>> +
>> +PIC32MZ[DA] Starter Kit
>> +----------------------------------------
>> +PIC32MZ[DA] Starter Kit is based on PIC32MZ[DA] family of micro-controller.
>> +This family is powered by MIPS M14KEC 32bit general purpose core and has
>> +advanced microcontroller features and peripherals.
>> +
>> +This processor boots with proprietary stage1 bootloader running from internal
>> +boot-flash. Stage1 bootloader inturns locates and jumps to U-Boot programmed
>> +on internal program-flash. Finally U-Boot loads OS image (along with other
>> +required files for booting) from either uSD card, or ethernet, or from USB
>> +storage.
>> +
>> +To boot Linux following three files are mandatory - uEnv.txt (custom U-Boot
>> +environment file), uImage, *.dtb (platform device-tree-blob file).
>> +
>> +U-Boot jumps to Linux using UHI specification.
>> +
>> +Visit http://microchip.com for details.
>> diff --git a/board/microchip/pic32mzda/pic32mzda.c b/board/microchip/pic32mzda/pic32mzda.c
>> new file mode 100644
>> index 0000000..afe2ab8
>> --- /dev/null
>> +++ b/board/microchip/pic32mzda/pic32mzda.c
>> @@ -0,0 +1,31 @@
>> +/*
>> + * Microchip PIC32MZ[DA] Starter Kit board
>> + *
>> + * Copyright (C) 2015, Microchip Technology Inc.
>> + * Purna Chandra Mandal <purna.mandal at microchip.com>
>> + *
>> + * SPDX-License-Identifier:    GPL-2.0+
>> + *
>> + */
>> +
>> +#include <common.h>
>> +#include <dm.h>
>> +#include <clk.h>
>> +#include <mach/pic32.h>
>> +
>> +#ifdef CONFIG_DISPLAY_BOARDINFO
>> +int checkboard(void)
>> +{
>> +       ulong rate = 0;
>> +       struct udevice *dev;
>> +
>> +       printf("Core: %s\n", get_core_name());
>> +
>> +       if (!uclass_get_device(UCLASS_CLK, 0, &dev)) {
>> +               rate = clk_get_rate(dev);
>> +               printf("CPU Speed: %lu MHz\n", rate / 1000000);
>> +       }
>> +
>> +       return 0;
>> +}
>> +#endif
>> diff --git a/configs/pic32mzdask_defconfig b/configs/pic32mzdask_defconfig
>> new file mode 100644
>> index 0000000..13760e6
>> --- /dev/null
>> +++ b/configs/pic32mzdask_defconfig
>> @@ -0,0 +1,21 @@
>> +CONFIG_MIPS=y
>> +CONFIG_MACH_PIC32=y
>> +CONFIG_SOC_PIC32MZDA=y
>> +CONFIG_TARGET_PIC32MZDASK=y
>> +CONFIG_SYS_LITTLE_ENDIAN=y
>> +CONFIG_HUSH_PARSER=y
>> +CONFIG_SYS_HUSH_PARSER=y
>> +CONFIG_SYS_PROMPT="dask # "
>> +CONFIG_CMD_TIME=y
>> +# CONFIG_CMD_IMLS is not set
>> +CONFIG_SUPPORT_OF_CONTROL=y
>> +CONFIG_OF_EMBED=y
>> +CONFIG_DEFAULT_DEVICE_TREE="pic32mzda_sk"
>> +CONFIG_DM=y
>> +CONFIG_CMD_DM=y
>> +CONFIG_DM_SERIAL=y
>> +CONFIG_PIC32_SERIAL=y
>> +CONFIG_CLK=y
>> +CONFIG_PINCTRL=y
>> +# CONFIG_PINCTRL_FULL is not set
>> +CONFIG_PIC32_PINCTRL=y
> this looks written by hand. Please create this file with Kconfig:
>
> make savedefconfig
> cp defconfig configs/pic32mzdask_defconfig

Yes it is edited. I'll directly use kconfig generated one.

>> diff --git a/include/configs/pic32mzdask.h b/include/configs/pic32mzdask.h
>> new file mode 100644
>> index 0000000..3624107
>> --- /dev/null
>> +++ b/include/configs/pic32mzdask.h
>> @@ -0,0 +1,100 @@
>> +/*
>> + * (c) 2015 Purna Chandra Mandal <purna.mandal at microchip.com>
>> + *
>> + * SPDX-License-Identifier:    GPL-2.0+
>> + *
>> + * Microchip PIC32MZ[DA] Starter Kit.
>> + */
>> +
>> +#ifndef __PIC32MZDASK_CONFIG_H
>> +#define __PIC32MZDASK_CONFIG_H
>> +
>> +/* System Configuration */
>> +#define CONFIG_SYS_TEXT_BASE           0x9d004000 /* .text */
>> +#define CONFIG_DISPLAY_BOARDINFO
>> +
>> +/*--------------------------------------------
>> + * CPU configuration
>> + */
>> +/* CPU Timer rate */
>> +#define CONFIG_SYS_MIPS_TIMER_FREQ     100000000
>> +
>> +/* Cache Configuration */
>> +#define CONFIG_SYS_MIPS_CACHE_MODE     CONF_CM_CACHABLE_NONCOHERENT
>> +#undef CONFIG_SKIP_LOWLEVEL_INIT
> you do not need to add #undef lines to disable config options. All
> options are disabled by default.

ack. Will remove.

>> +
>> +/*----------------------------------------------------------------------
>> + * Memory Layout
>> + */
>> +#define CONFIG_SYS_SRAM_BASE           0x80000000
>> +#define CONFIG_SYS_SRAM_SIZE           0x00080000 /* 512K */
>> +
>> +/* Initial RAM for temporary stack, global data */
>> +#define CONFIG_SYS_INIT_RAM_SIZE       0x10000
>> +#define CONFIG_SYS_INIT_RAM_ADDR       \
>> +       (CONFIG_SYS_SRAM_BASE + CONFIG_SYS_SRAM_SIZE - CONFIG_SYS_INIT_RAM_SIZE)
>> +#define CONFIG_SYS_GBL_DATA_OFFSET     \
>> +       (CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
>> +#define CONFIG_SYS_INIT_SP_OFFSET      CONFIG_SYS_GBL_DATA_OFFSET
>> +#define CONFIG_SYS_INIT_SP_ADDR                \
>> +       (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
> you do not need to take care of GENERATED_GBL_DATA_SIZE. This is
> automatically done in start.S. You only need to set:
>
> #define CONFIG_SYS_INIT_RAM_SIZE       0x10000
> #define CONFIG_SYS_INIT_RAM_ADDR       \
>        (CONFIG_SYS_SRAM_BASE + CONFIG_SYS_SRAM_SIZE - CONFIG_SYS_INIT_RAM_SIZE)
> #define CONFIG_SYS_INIT_SP_ADDR                \
>        (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE - 1)

Good catch. Will remove.

>> +
>> +/* SDRAM Configuration (for final code, data, stack, heap) */
>> +#define CONFIG_SYS_SDRAM_BASE          0x88000000
>> +#define CONFIG_SYS_MALLOC_LEN          (256 << 10)
>> +#define CONFIG_SYS_BOOTPARAMS_LEN      (4 << 10)
>> +#define CONFIG_STACKSIZE               (4 << 10) /* regular stack */
>> +
>> +#define CONFIG_SYS_MONITOR_BASE                CONFIG_SYS_TEXT_BASE
>> +#define CONFIG_SYS_MONITOR_LEN         (192 << 10)
>> +
>> +#define CONFIG_SYS_LOAD_ADDR           0x88500000 /* default load address */
>> +#define CONFIG_SYS_ENV_ADDR            0x88300000
>> +
>> +/* Memory Test */
>> +#define CONFIG_SYS_MEMTEST_START       0x88000000
>> +#define CONFIG_SYS_MEMTEST_END         0x88080000
>> +
>> +/*----------------------------------------------------------------------
>> + * Commands
>> + */
>> +#define CONFIG_SYS_LONGHELP            /* undef to save memory */
>> +#define CONFIG_CMD_CLK
>> +#define CONFIG_CMD_MEMTEST
>> +#define CONFIG_CMD_MEMINFO
>> +
>> +/*-------------------------------------------------
>> + * FLASH configuration
>> + */
>> +#define CONFIG_SYS_NO_FLASH
>> +
>> +/*------------------------------------------------------------
>> + * Console Configuration
>> + */
>> +#define CONFIG_BAUDRATE                        115200
>> +#define CONFIG_SYS_BAUDRATE_TABLE      {9600, 19200, 38400, 57600, 115200}
>> +#define CONFIG_SYS_CBSIZE              1024 /* Console I/O Buffer Size   */
>> +#define CONFIG_SYS_MAXARGS             16   /* max number of command args*/
>> +#define CONFIG_SYS_PBSIZE              \
>> +               (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
>> +#define CONFIG_CMDLINE_EDITING         1
>> +
>> +/*
>> + * Handover flattened device tree (dtb file) to Linux kernel
>> + */
>> +#define CONFIG_OF_LIBFDT       1
>> +
>> +/* -------------------------------------------------
>> + * Environment
>> + */
>> +#define CONFIG_ENV_IS_NOWHERE  1
>> +#define CONFIG_ENV_SIZE                0x4000
>> +
>> +/* ---------------------------------------------------------------------
>> + * Board boot configuration
>> + */
>> +#define CONFIG_TIMESTAMP       /* Print image info with timestamp */
>> +#define CONFIG_BOOTDELAY       5 /* autoboot after X seconds     */
>> +#undef CONFIG_BOOTARGS
>> +
>> +#endif /* __PIC32MZDASK_CONFIG_H */
>> --
>> 1.8.3.1
>>
>>
>
>



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