[PATCH 2/2] board: atmel: Add SAMA5D27 giant board

Eugen.Hristev at microchip.com Eugen.Hristev at microchip.com
Fri Jan 15 08:55:09 CET 2021


On 11.01.2021 09:10, Greg Gallagher wrote:
> Giant board is a tiny SBC based on the Adafruit Feather form factor,
> created by groboards it contains a SAMA5D2 processor (SAMA5D27),
> 128 MB of RAM and a microSD card for storage.
> 
> Signed-off-by: Greg Gallagher <greg at embeddedgreg.com>

Hi Greg,


> ---
> 
>   arch/arm/dts/Makefile                         |   3 +
>   arch/arm/dts/at91-sama5d27_giantboard.dts     | 128 ++++++++++++
>   arch/arm/mach-at91/Kconfig                    |   9 +
>   board/atmel/sama5d27_giantboard/Kconfig       |  15 ++
>   board/atmel/sama5d27_giantboard/MAINTAINERS   |   6 +
>   board/atmel/sama5d27_giantboard/Makefile      |   5 +
>   .../sama5d27_giantboard/sama5d27_giantboard.c | 182 ++++++++++++++++++
>   configs/sama5d27_giantboard_defconfig         |  93 +++++++++
>   include/configs/sama5d27_giantboard.h         | 136 +++++++++++++
>   9 files changed, 577 insertions(+)
>   create mode 100644 arch/arm/dts/at91-sama5d27_giantboard.dts
>   create mode 100644 board/atmel/sama5d27_giantboard/Kconfig
>   create mode 100644 board/atmel/sama5d27_giantboard/MAINTAINERS
>   create mode 100644 board/atmel/sama5d27_giantboard/Makefile
>   create mode 100644 board/atmel/sama5d27_giantboard/sama5d27_giantboard.c
>   create mode 100644 configs/sama5d27_giantboard_defconfig
>   create mode 100644 include/configs/sama5d27_giantboard.h
> 
> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
> index fd47e408f8..23b45290a4 100644
> --- a/arch/arm/dts/Makefile
> +++ b/arch/arm/dts/Makefile
> @@ -898,6 +898,9 @@ dtb-$(CONFIG_TARGET_SAMA5D2_XPLAINED) += \
>   dtb-$(CONFIG_TARGET_SAMA5D27_SOM1_EK) += \
>          at91-sama5d27_som1_ek.dtb
> 
> +dtb-$(CONFIG_TARGET_SAMA5D27_GIANTBOARD) += \
> +       at91-sama5d27_giantboard.dtb
> +
>   dtb-$(CONFIG_TARGET_SAMA5D27_WLSOM1_EK) += \
>          at91-sama5d27_wlsom1_ek.dtb
> 
> diff --git a/arch/arm/dts/at91-sama5d27_giantboard.dts b/arch/arm/dts/at91-sama5d27_giantboard.dts
> new file mode 100644
> index 0000000000..e81ca60ca0
> --- /dev/null
> +++ b/arch/arm/dts/at91-sama5d27_giantboard.dts
> @@ -0,0 +1,128 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * at91-sama5d27_giantboard.dts - Device Tree file for Giant Board
> + *
> + * Copyright (C) 2020 Greg Gallagher <greg at embeddedgreg.com>
> + *
> + * Derived from at91-sama5d27_som1_ek.dts
> + *
> + * Copyright (C) 2017 Microchip Corporation
> + *                   Wenyou Yang <wenyou.yang at microchip.com>
> + */
> +/dts-v1/;
> +#include "sama5d2.dtsi"
> +#include "sama5d2-pinfunc.h"
> +
> +/ {
> +       model = "Giant Board";
> +       compatible = "atmel,sama5d27-giantboard", "atmel,sama5d2", "atmel,sama5";
> +
> +       memory {
> +               reg = <0x20000000 0x8000000>;
> +       };
> +
> +       chosen {
> +               u-boot,dm-pre-reloc;
> +               stdout-path = &uart1;
> +       };
> +
> +       ahb {
> +               sdmmc1: sdio-host at b0000000 {
> +                       bus-width = <4>;
> +                       pinctrl-names = "default";
> +                       pinctrl-0 = <&pinctrl_sdmmc1_cmd_dat_default &pinctrl_sdmmc1_ck_cd_default>;
> +                       status = "okay";
> +                       u-boot,dm-pre-reloc;
> +               };
> +
> +               apb {
> +
Please remove empty line here
> +                       uart1: serial at f8020000 {
> +                               pinctrl-names = "default";
> +                               pinctrl-0 = <&pinctrl_uart1_default>;
> +                               status = "okay";
> +                               u-boot,dm-pre-reloc;
> +                       };
> +
> +                       i2c0: i2c at f8028000 {
> +                               pinctrl-names = "default";
> +                               pinctrl-0 = <&pinctrl_i2c0_default>;
> +                               status = "okay";
> +                       };
> +
> +                       i2c1: i2c at fc028000 {
> +                               pinctrl-names = "default";
> +                               pinctrl-0 = <&pinctrl_i2c1_default>;
> +                               status = "okay";
> +
> +                               pmic at 5b {
> +                                       compatible = "active-semi,act8945a";
> +                                       reg = <0x5b>;
> +                                       active-semi,vsel-low;
> +                                       status = "okay";
> +                               };
> +                       };
> +
> +                       pit: timer at f8048030 {
> +                               status = "okay";
> +                               u-boot,dm-pre-reloc;
> +                       };
> +
> +                       sfr: sfr at f8030000 {
> +                               status = "okay";
> +                               u-boot,dm-pre-reloc;
> +                       };
> +
> +                       pioA: gpio at fc038000 {
> +                               pinctrl {
> +
Please remove empty line here
> +                                       pinctrl_sdmmc1_cmd_dat_default: sdmmc1_cmd_dat_default {
> +                                               pinmux = <PIN_PA28__SDMMC1_CMD>,
> +                                                        <PIN_PA18__SDMMC1_DAT0>,
> +                                                        <PIN_PA19__SDMMC1_DAT1>,
> +                                                        <PIN_PA20__SDMMC1_DAT2>,
> +                                                        <PIN_PA21__SDMMC1_DAT3>;
> +                                               bias-pull-up;
> +                                               u-boot,dm-pre-reloc;
> +                                       };
> +
> +                                       pinctrl_sdmmc1_ck_cd_default: sdmmc1_ck_cd_default {
> +                                               pinmux = <PIN_PA22__SDMMC1_CK>,
> +                                                        <PIN_PA30__SDMMC1_CD>;
> +                                               bias-disable;
> +                                               u-boot,dm-pre-reloc;
> +                                       };
> +
> +                                       pinctrl_uart1_default: uart1_default {
> +                                               pinmux = <PIN_PD2__URXD1>,
> +                                                        <PIN_PD3__UTXD1>;
> +                                               bias-disable;
> +                                               u-boot,dm-pre-reloc;
> +                                       };
> +
> +                                       pinctrl_i2c0_default: i2c0_default {
> +                                               pinmux = <PIN_PD21__TWD0>,
> +                                                        <PIN_PD22__TWCK0>;
> +                                               bias-disable;
> +                                       };
> +
> +                                       pinctrl_i2c1_default: i2c1_default {
> +                                               pinmux = <PIN_PD4__TWD1>,
> +                                                        <PIN_PD5__TWCK1>;
> +                                               bias-disable;
> +                                       };
> +
> +                                       pinctrl_usb_default: usb_default {
> +                                               pinmux = <PIN_PB10__GPIO>;
> +                                               bias-disable;
> +                                       };
> +
> +                                       pinctrl_usba_vbus: usba_vbus {
> +                                               pinmux = <PIN_PA31__GPIO>;
> +                                               bias-disable;
> +                                       };
> +                               };
> +                       };
> +               };
> +       };
> +};
> diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
> index be1415f909..1837396945 100644
> --- a/arch/arm/mach-at91/Kconfig
> +++ b/arch/arm/mach-at91/Kconfig
> @@ -183,6 +183,14 @@ config TARGET_SAMA5D2_XPLAINED
>          select SAMA5D2
>          select SUPPORT_SPL
> 
> +config TARGET_SAMA5D27_GIANTBOARD
> +       bool "SAMA5D27 Giant board"
> +       select BOARD_EARLY_INIT_F
> +       select BOARD_LATE_INIT
> +       select CPU_V7A
> +       select SUPPORT_SPL
> +       select ATMEL_SFR
> +
>   config TARGET_SAMA5D27_SOM1_EK
>          bool "SAMA5D27 SOM1 EK board"
>          select BOARD_EARLY_INIT_F
> @@ -330,6 +338,7 @@ source "board/atmel/sam9x60ek/Kconfig"
>   source "board/atmel/sama5d2_ptc_ek/Kconfig"
>   source "board/atmel/sama5d2_xplained/Kconfig"
>   source "board/atmel/sama5d27_som1_ek/Kconfig"
> +source "board/atmel/sama5d27_giantboard/Kconfig"
>   source "board/atmel/sama5d27_wlsom1_ek/Kconfig"
>   source "board/atmel/sama5d2_icp/Kconfig"
>   source "board/atmel/sama5d3_xplained/Kconfig"
> diff --git a/board/atmel/sama5d27_giantboard/Kconfig b/board/atmel/sama5d27_giantboard/Kconfig
> new file mode 100644
> index 0000000000..6cefb8f689
> --- /dev/null
> +++ b/board/atmel/sama5d27_giantboard/Kconfig
> @@ -0,0 +1,15 @@
> +if TARGET_SAMA5D27_GIANTBOARD
> +
> +config SYS_BOARD
> +       default "sama5d27_giantboard"
> +
> +config SYS_VENDOR
> +       default "atmel"
> +
> +config SYS_SOC
> +       default "at91"
> +
> +config SYS_CONFIG_NAME
> +       default "sama5d27_giantboard"
> +
> +endif
> diff --git a/board/atmel/sama5d27_giantboard/MAINTAINERS b/board/atmel/sama5d27_giantboard/MAINTAINERS
> new file mode 100644
> index 0000000000..80bfae01fa
> --- /dev/null
> +++ b/board/atmel/sama5d27_giantboard/MAINTAINERS
> @@ -0,0 +1,6 @@
> +SAMA5D27 GIANT BOARD
> +M:     Greg Gallagher <greg at embeddedgreg.com>
> +S:     Maintained
> +F:     board/atmel/sama5d27_giantboard/
> +F:     include/configs/sama5d27_giantboard.h
> +F:     configs/sama5d27_giantboard_mmc_defconfig

This file does not match the files you are adding in the commit 
(configs/sama5d27_giantboard_defconfig )

> diff --git a/board/atmel/sama5d27_giantboard/Makefile b/board/atmel/sama5d27_giantboard/Makefile
> new file mode 100644
> index 0000000000..d4b2a4d36f
> --- /dev/null
> +++ b/board/atmel/sama5d27_giantboard/Makefile
> @@ -0,0 +1,5 @@
> +# SPDX-License-Identifier: GPL-2.0+
> +#
> +# Copyright (C) 2020 Greg Gallagher <greg at embeddedgreg.com>
> +
> +obj-y += sama5d27_giantboard.o
> diff --git a/board/atmel/sama5d27_giantboard/sama5d27_giantboard.c b/board/atmel/sama5d27_giantboard/sama5d27_giantboard.c
> new file mode 100644
> index 0000000000..d75a9650ad
> --- /dev/null
> +++ b/board/atmel/sama5d27_giantboard/sama5d27_giantboard.c
> @@ -0,0 +1,182 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (C) 2021 Greg Gallagher <greg at embeddedgreg.com>
> + *
> + * Derived from sama5d27_som1_ek.c
> + *
> + * Copyright (C) 2017 Microchip Corporation
> + *                   Wenyou Yang <wenyou.yang at microchip.com>
> + *
> + */
> +
> +#include <common.h>
> +#include <debug_uart.h>
> +#include <init.h>
> +#include <asm/io.h>
> +#include <asm/arch/at91_common.h>
> +#include <asm/arch/atmel_pio4.h>
> +#include <asm/arch/atmel_mpddrc.h>
> +#include <asm/arch/atmel_sdhci.h>
> +#include <asm/arch/clk.h>
> +#include <asm/arch/gpio.h>
> +#include <asm/arch/sama5d2.h>
> +
> +extern void at91_pda_detect(void);
> +
> +DECLARE_GLOBAL_DATA_PTR;
> +
> +#ifdef CONFIG_CMD_USB
> +static void board_usb_hw_init(void)
> +{
> +       atmel_pio4_set_pio_output(AT91_PIO_PORTA, 27, 1);
> +}
> +#endif
> +
> +#ifdef CONFIG_BOARD_LATE_INIT
> +int board_late_init(void)
> +{
> +       at91_pda_detect();
> +       return 0;
> +}
> +#endif
> +
> +#ifdef CONFIG_DEBUG_UART_BOARD_INIT
> +static void board_uart1_hw_init(void)
> +{
> +       atmel_pio4_set_a_periph(AT91_PIO_PORTD, 2, ATMEL_PIO_PUEN_MASK);        /* URXD1 */
> +       atmel_pio4_set_a_periph(AT91_PIO_PORTD, 3, 0);  /* UTXD1 */
> +
> +       at91_periph_clk_enable(ATMEL_ID_UART1);
> +}
> +
> +void board_debug_uart_init(void)
> +{
> +       board_uart1_hw_init();
> +}
> +#endif
> +
> +#ifdef CONFIG_BOARD_EARLY_INIT_F
> +int board_early_init_f(void)
> +{
> +       if (IS_ENABLED(CONFIG_DEBUG_UART))
> +               debug_uart_init();
> +
> +       return 0;
> +}
> +#endif
> +
> +int board_init(void)
> +{
> +       /* address of boot parameters */
> +       gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
> +
> +       if (IS_ENABLED(CONFIG_CMD_USB))
> +               board_usb_hw_init();
> +
> +       return 0;
> +}
> +
> +int dram_init(void)
> +{
> +       gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
> +                                   CONFIG_SYS_SDRAM_SIZE);
> +       return 0;
> +}
> +
> +/* SPL */
> +#ifdef CONFIG_SPL_BUILD
> +void spl_board_init(void)
> +{
> +}
> +
> +static void ddrc_conf(struct atmel_mpddrc_config *ddrc)
> +{
> +       ddrc->md = (ATMEL_MPDDRC_MD_DBW_16_BITS | ATMEL_MPDDRC_MD_DDR2_SDRAM);
> +
> +       ddrc->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
> +                   ATMEL_MPDDRC_CR_NR_ROW_13 |
> +                   ATMEL_MPDDRC_CR_CAS_DDR_CAS3 |
> +                   ATMEL_MPDDRC_CR_DIC_DS |
> +                   ATMEL_MPDDRC_CR_ZQ_LONG |
> +                   ATMEL_MPDDRC_CR_NB_8BANKS |
> +                   ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
> +                   ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
> +
> +       ddrc->rtr = 0x511;
> +
> +       ddrc->tpr0 = ((7 << ATMEL_MPDDRC_TPR0_TRAS_OFFSET) |
> +                     (3 << ATMEL_MPDDRC_TPR0_TRCD_OFFSET) |
> +                     (3 << ATMEL_MPDDRC_TPR0_TWR_OFFSET) |
> +                     (9 << ATMEL_MPDDRC_TPR0_TRC_OFFSET) |
> +                     (3 << ATMEL_MPDDRC_TPR0_TRP_OFFSET) |
> +                     (4 << ATMEL_MPDDRC_TPR0_TRRD_OFFSET) |
> +                     (4 << ATMEL_MPDDRC_TPR0_TWTR_OFFSET) |
> +                     (2 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET));
> +
> +       ddrc->tpr1 = ((22 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET) |
> +                     (23 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET) |
> +                     (200 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET) |
> +                     (3 << ATMEL_MPDDRC_TPR1_TXP_OFFSET));
> +
> +       ddrc->tpr2 = ((2 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET) |
> +                     (8 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET) |
> +                     (4 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET) |
> +                     (4 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET) |
> +                     (8 << ATMEL_MPDDRC_TPR2_TFAW_OFFSET));
> +}
> +
> +void mem_init(void)
> +{
> +       struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
> +       struct atmel_mpddr *mpddrc = (struct atmel_mpddr *)ATMEL_BASE_MPDDRC;
> +       struct atmel_mpddrc_config ddrc_config;
> +       u32 reg;
> +
> +       ddrc_conf(&ddrc_config);
> +
> +       at91_periph_clk_enable(ATMEL_ID_MPDDRC);
> +       writel(AT91_PMC_DDR, &pmc->scer);
> +
> +       reg = readl(&mpddrc->io_calibr);
> +       reg &= ~ATMEL_MPDDRC_IO_CALIBR_RDIV;
> +       reg |= ATMEL_MPDDRC_IO_CALIBR_DDR3_RZQ_55;
> +       reg &= ~ATMEL_MPDDRC_IO_CALIBR_TZQIO;
> +       reg |= ATMEL_MPDDRC_IO_CALIBR_TZQIO_(101);
> +       writel(reg, &mpddrc->io_calibr);
> +
> +       writel(ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_ONE_CYCLE,
> +              &mpddrc->rd_data_path);
> +
> +       ddr3_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddrc_config);
> +
> +       writel(0x3, &mpddrc->cal_mr4);
> +       writel(64, &mpddrc->tim_cal);
> +}
> +
> +void at91_pmc_init(void)
> +{
> +       u32 tmp;
> +
> +       /*
> +        * while coming from the ROM code, we run on PLLA @ 492 MHz / 164 MHz
> +        * so we need to slow down and configure MCKR accordingly.
> +        * This is why we have a special flavor of the switching function.
> +        */
> +       tmp = AT91_PMC_MCKR_PLLADIV_2 |
> +             AT91_PMC_MCKR_MDIV_3 |
> +             AT91_PMC_MCKR_CSS_MAIN;
> +       at91_mck_init_down(tmp);
> +
> +       tmp = AT91_PMC_PLLAR_29 |
> +             AT91_PMC_PLLXR_PLLCOUNT(0x3f) |
> +             AT91_PMC_PLLXR_MUL(40) |
> +             AT91_PMC_PLLXR_DIV(1);
> +       at91_plla_init(tmp);
> +
> +       tmp = AT91_PMC_MCKR_H32MXDIV |
> +             AT91_PMC_MCKR_PLLADIV_2 |
> +             AT91_PMC_MCKR_MDIV_3 |
> +             AT91_PMC_MCKR_CSS_PLLA;
> +       at91_mck_init(tmp);
> +}
> +#endif
> diff --git a/configs/sama5d27_giantboard_defconfig b/configs/sama5d27_giantboard_defconfig
> new file mode 100644
> index 0000000000..4612a75b53
> --- /dev/null
> +++ b/configs/sama5d27_giantboard_defconfig
> @@ -0,0 +1,93 @@
> +CONFIG_ARM=y
> +CONFIG_ARCH_CPU_INIT=y
> +CONFIG_ARCH_AT91=y
> +CONFIG_CMDLINE=y
> +CONFIG_SYS_TEXT_BASE=0x23f00000
> +CONFIG_TARGET_SAMA5D27_GIANTBOARD=y
> +CONFIG_SPL_GPIO_SUPPORT=y
> +CONFIG_SPL_LIBCOMMON_SUPPORT=y
> +CONFIG_SPL_LIBGENERIC_SUPPORT=y
> +CONFIG_SYS_MALLOC_F_LEN=0x2000
> +CONFIG_SPL_MMC_SUPPORT=y
> +CONFIG_SPL_SERIAL_SUPPORT=y
> +CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
> +CONFIG_ENV_SIZE=0x4000
> +CONFIG_NR_DRAM_BANKS=1
> +CONFIG_SPL=y
> +CONFIG_DEBUG_UART_BOARD_INIT=y
> +CONFIG_DEBUG_UART_BASE=0xf8020000
> +CONFIG_DEBUG_UART_CLOCK=82000000
> +CONFIG_SPL_FAT_SUPPORT=y
> +CONFIG_SPL_FS_FAT=y
> +CONFIG_SPL_LIBDISK_SUPPORT=y
> +CONFIG_DEBUG_UART=y
> +CONFIG_ENV_VARS_UBOOT_CONFIG=y
> +CONFIG_FIT=y
> +CONFIG_SYS_EXTRA_OPTIONS="SAMA5D2"
> +CONFIG_SD_BOOT=y
> +CONFIG_BOOTDELAY=3
> +CONFIG_USE_BOOTARGS=y
> +# CONFIG_MISC_INIT_R is not set
> +# CONFIG_DISPLAY_BOARDINFO is not set
> +CONFIG_SPL_TEXT_BASE=0x200000
> +CONFIG_SPL_SEPARATE_BSS=y
> +CONFIG_HUSH_PARSER=y
> +CONFIG_AUTOBOOT_KEYED=y
> +CONFIG_AUTOBOOT_PROMPT="Hit SPACE in %d seconds to stop autoboot.\n"
> +CONFIG_AUTOBOOT_STOP_STR=" "
> +CONFIG_AUTOBOOT_KEYED_CTRLC=y
> +CONFIG_CMD_BOOTZ=y
> +# CONFIG_CMD_FLASH is not set
> +CONFIG_CMD_I2C=y
> +# CONFIG_CMD_LOADS is not set
> +CONFIG_CMD_MMC=y
> +CONFIG_CMD_PART=y
> +CONFIG_CMD_SF=y
> +CONFIG_CMD_USB=y
> +CONFIG_CMD_EXT4=y
> +CONFIG_CMD_FAT=y
> +CONFIG_CMD_FS_GENERIC=y
> +CONFIG_OF_CONTROL=y
> +CONFIG_SPL_OF_CONTROL=y
> +CONFIG_OF_LIBFDT=y
> +CONFIG_OF_LIBFDT_OVERLAY=y
> +CONFIG_DEFAULT_DEVICE_TREE="at91-sama5d27_giantboard"
> +CONFIG_OF_SPL_REMOVE_PROPS="interrupts interrupt-parent dmas dma-names"
> +CONFIG_ENV_IS_IN_FAT=y
> +CONFIG_DM=y
> +CONFIG_SPL_DM=y
> +CONFIG_SPL_DM_SEQ_ALIAS=y
> +CONFIG_CLK=y
> +CONFIG_SPL_CLK=y
> +CONFIG_CLK_AT91=y
> +CONFIG_AT91_UTMI=y
> +CONFIG_AT91_H32MX=y
> +CONFIG_AT91_GENERIC_CLK=y
> +CONFIG_DM_GPIO=y
> +CONFIG_ATMEL_PIO4=y
> +CONFIG_DM_I2C=y
> +CONFIG_SYS_I2C_AT91=y
> +CONFIG_DM_MMC=y
> +CONFIG_MMC_SDHCI=y
> +CONFIG_MMC_SDHCI_ATMEL=y
> +CONFIG_DM_SPI_FLASH=y
> +CONFIG_SPI_FLASH=y
> +# CONFIG_NET is not set
> +CONFIG_PINCTRL=y
> +CONFIG_SPL_PINCTRL=y
> +CONFIG_PINCTRL_AT91PIO4=y
> +CONFIG_DM_SERIAL=y
> +CONFIG_DEBUG_UART_ATMEL=y
> +CONFIG_DEBUG_UART_ANNOUNCE=y
> +CONFIG_ATMEL_USART=y
> +CONFIG_SPI=y
> +CONFIG_DM_SPI=y
> +CONFIG_TIMER=y
> +CONFIG_SPL_TIMER=y
> +CONFIG_ATMEL_PIT_TIMER=y
> +CONFIG_USB=y
> +CONFIG_DM_USB=y
> +CONFIG_USB_EHCI_HCD=y
> +CONFIG_USB_STORAGE=y
> +CONFIG_USB_GADGET=y
> +CONFIG_USB_GADGET_ATMEL_USBA=y
> diff --git a/include/configs/sama5d27_giantboard.h b/include/configs/sama5d27_giantboard.h
> new file mode 100644
> index 0000000000..2311061e1f
> --- /dev/null
> +++ b/include/configs/sama5d27_giantboard.h
> @@ -0,0 +1,136 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/*
> + * Configuration file for the SAMA5D27 Giant Board.
> + *
> + * Copyright (C) 2020 Greg Gallagher <greg at embeddedgreg.com>
> + *
> + * Derived from sama5d27_som1_ek.h
> + *
> + * Copyright (C) 2017 Microchip Corporation
> + *                   Wenyou Yang <wenyou.yang at microchip.com>
> + */
> +
> +#ifndef __CONFIG_H
> +#define __CONFIG_H
> +
> +#include "at91-sama5_common.h"
> +
> +#undef CONFIG_SYS_AT91_MAIN_CLOCK
> +#define CONFIG_SYS_AT91_MAIN_CLOCK      24000000 /* from 24 MHz crystal */
> +
> +/* SDRAM */
> +#define CONFIG_SYS_SDRAM_BASE          0x20000000
> +#define CONFIG_SYS_SDRAM_SIZE          0x8000000
> +
> +#ifdef CONFIG_SPL_BUILD
> +#define CONFIG_SYS_INIT_SP_ADDR                0x218000
> +#else
> +#define CONFIG_SYS_INIT_SP_ADDR \
> +       (CONFIG_SYS_SDRAM_BASE + 16 * 1024 - GENERATED_GBL_DATA_SIZE)
> +#endif
> +
> +#define CONFIG_SYS_LOAD_ADDR           0x22000000 /* load address */
> +
> +/* NAND flash */
> +
> +/* SPI flash */
> +
> +#undef CONFIG_BOOTCOMMAND
> +#ifdef CONFIG_SD_BOOT
> +/* bootstrap + u-boot + env in sd card */
> +#define CONFIG_SUPPORT_RAW_INITRD
> +#define CONFIG_EXTRA_ENV_SETTINGS \
> +       "fdtovaddr=0x21800000\0" \
> +       "loadaddr=0x22000000\0" \
> +       "fdtaddr=0x21000000\0" \
> +       "fdtfile=/dtbs/at91-sama5d27_giantboard.dtb\0" \
> +       "enable_uboot_overlays=\0" \
> +       "dtboverlay=\0" \
> +       "dtboverlay1=\0" \
> +       "dtboverlay2=\0" \
> +       "dtboverlay3=\0" \
> +       "dtboverlay4=\0" \
> +       "console=ttyS0,115200\0" \
> +       "optargs=\0" \
> +       "mmcdev=0\0" \
> +       "mmcpart=1\0" \
> +       "mmcroot=/dev/mmcblk0p2 rw\0" \
> +       "mmcrootfstype=ext4 rootwait\0" \
> +       "mmcargs=setenv bootargs console=${console} " \
> +               "${optargs} " \
> +               "root=${mmcroot} " \
> +               "rootfstype=${mmcrootfstype} " \
> +       "loadbootenv=load mmc ${mmcdev}:${mmcpart} ${loadaddr} uEnv.txt\0" \
> +       "importbootenv=echo Importing environment from mmc (uEnv.txt)...; " \
> +               "env import -t ${loadaddr} ${filesize}\0" \
> +       "loadzimage=load mmc ${mmcdev}:${mmcpart} ${loadaddr} zImage\0" \
> +       "loadfdt=load mmc ${mmcdev}:${mmcpart} ${fdtaddr} ${fdtfile}\0" \
> +       "loadoverlay=load mmc ${mmcdev}:${mmcpart} ${fdtovaddr} ${dtboverlay}\0" \
> +       "loadoverlay1=load mmc ${mmcdev}:${mmcpart} ${fdtovaddr} ${dtboverlay1}\0" \
> +       "loadoverlay2=load mmc ${mmcdev}:${mmcpart} ${fdtovaddr} ${dtboverlay2}\0" \
> +       "loadoverlay3=load mmc ${mmcdev}:${mmcpart} ${fdtovaddr} ${dtboverlay3}\0" \
> +       "loadoverlay4=load mmc ${mmcdev}:${mmcpart} ${fdtovaddr} ${dtboverlay4}\0" \
> +       "mmcboot=echo Booting from mmc ...; " \
> +       "run mmcargs; " \
> +       "bootz ${loadaddr} - ${fdtaddr}\0"
> +
> +#define CONFIG_BOOTCOMMAND \
> +       "mmc dev ${mmcdev};" \
> +       "if mmc rescan; then " \
> +               "echo SD/MMC found on device ${mmcdev};" \
> +               "if run loadbootenv; then " \
> +                       "run importbootenv;" \
> +               "fi;" \
> +               "echo Running default loadzimage ...;" \
> +               "if run loadzimage; then " \
> +                       "run loadfdt;" \
> +                       "echo Checking for overlays ...;" \
> +                       "if test -n $enable_uboot_overlays; then " \
> +                               "fdt addr ${fdtaddr};" \
> +                               "fdt resize 4096;" \
> +                               "if test -n $dtboverlay; then " \
> +                                       "run loadoverlay;" \
> +                                       "fdt apply ${fdtovaddr};" \
> +                                       "echo loaded ${dtboverlay};" \
> +                               "fi;" \
> +                               "if test -n $dtboverlay1; then " \
> +                                       "run loadoverlay1;" \
> +                                       "fdt apply ${fdtovaddr};" \
> +                                       "echo loaded ${dtboverlay1};" \
> +                               "fi;" \
> +                               "if test -n $dtboverlay2; then " \
> +                                       "run loadoverlay2;" \
> +                                       "fdt apply ${fdtovaddr};" \
> +                                       "echo loaded ${dtboverlay2};" \
> +                               "fi;" \
> +                               "if test -n $dtboverlay3; then " \
> +                                       "run loadoverlay3;" \
> +                                       "fdt apply ${fdtovaddr};" \
> +                                       "echo loaded ${dtboverlay3};" \
> +                               "fi;" \
> +                               "if test -n $dtboverlay4; then " \
> +                                       "run loadoverlay4;" \
> +                                       "fdt apply ${fdtovaddr};" \
> +                                       "echo loaded ${dtboverlay4};" \
> +                               "fi;" \
> +                       "fi;" \
> +                       "run mmcboot;" \
> +               "fi;" \
> +       "fi;"
> +#endif
> +
> +/* SPL */
> +#define CONFIG_SPL_MAX_SIZE            0x10000
> +#define CONFIG_SPL_BSS_START_ADDR      0x20000000
> +#define CONFIG_SPL_BSS_MAX_SIZE                0x80000
> +#define CONFIG_SYS_SPL_MALLOC_START    0x20080000
> +#define CONFIG_SYS_SPL_MALLOC_SIZE     0x80000
> +
> +#define CONFIG_SYS_MONITOR_LEN         (512 << 10)
> +
> +#ifdef CONFIG_SD_BOOT
> +#define CONFIG_SYS_MMCSD_FS_BOOT_PARTITION     1
> +#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME                "u-boot.img"
> +#endif
> +
> +#endif
> --
> 2.25.1
> 

Have you tried reusing the som1_ek file ? I do not see much difference 
between your sama5d2_giantboard.c file and the som1_ek file.
You removed the eeprom ethernet mac retreival and the call to dm_video 
but otherwise everything looks the same.

Eugen


More information about the U-Boot mailing list