[U-Boot] [PATCH] board: atmel: add SAMA5D2 ICP board
Eugen.Hristev at microchip.com
Eugen.Hristev at microchip.com
Mon Apr 8 13:12:18 UTC 2019
Hi Stefan,
Thanks for reviewing,
On 08.04.2019 15:59, Stefan Roese wrote:
>
> On 08.04.19 14:50, Eugen.Hristev at microchip.com wrote:
>> From: Eugen Hristev <eugen.hristev at microchip.com>
>>
>> The SAMA5D2 ICP Board features the SAMA5D27 SoC,
>> together with QSPI Flash, Wilc3000 wireless device and
>> EtherCat support.
>>
>> Signed-off-by: Eugen Hristev <eugen.hristev at microchip.com>
>> ---
>> arch/arm/dts/Makefile | 3 +
>> arch/arm/dts/at91-sama5d2_icp.dts | 100 +++++++++++++++++
>> arch/arm/mach-at91/Kconfig | 12 +++
>> board/atmel/sama5d2_icp/Kconfig | 15 +++
>> board/atmel/sama5d2_icp/MAINTAINERS | 7 ++
>> board/atmel/sama5d2_icp/Makefile | 7 ++
>> board/atmel/sama5d2_icp/sama5d2_icp.c | 197
>> ++++++++++++++++++++++++++++++++++
>> configs/sama5d2_icp_mmc_defconfig | 72 +++++++++++++
>> include/configs/sama5d2_icp.h | 70 ++++++++++++
>> 9 files changed, 483 insertions(+)
>> create mode 100644 arch/arm/dts/at91-sama5d2_icp.dts
>> create mode 100644 board/atmel/sama5d2_icp/Kconfig
>> create mode 100644 board/atmel/sama5d2_icp/MAINTAINERS
>> create mode 100644 board/atmel/sama5d2_icp/Makefile
>> create mode 100644 board/atmel/sama5d2_icp/sama5d2_icp.c
>> create mode 100644 configs/sama5d2_icp_mmc_defconfig
>> create mode 100644 include/configs/sama5d2_icp.h
>>
>> diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
>> index 930b7e0..a3bfb11 100644
>> --- a/arch/arm/dts/Makefile
>> +++ b/arch/arm/dts/Makefile
>> @@ -643,6 +643,9 @@ dtb-$(CONFIG_TARGET_SAMA5D2_XPLAINED) += \
>> dtb-$(CONFIG_TARGET_SAMA5D27_SOM1_EK) += \
>> at91-sama5d27_som1_ek.dtb
>> +dtb-$(CONFIG_TARGET_SAMA5D2_ICP) += \
>> + at91-sama5d2_icp.dtb
>> +
>> dtb-$(CONFIG_TARGET_SAMA5D3XEK) += \
>> sama5d31ek.dtb \
>> sama5d33ek.dtb \
>> diff --git a/arch/arm/dts/at91-sama5d2_icp.dts
>> b/arch/arm/dts/at91-sama5d2_icp.dts
>> new file mode 100644
>> index 0000000..8830b05
>> --- /dev/null
>> +++ b/arch/arm/dts/at91-sama5d2_icp.dts
>> @@ -0,0 +1,100 @@
>> +// SPDX-License-Identifier: GPL-2.0+ OR X11
>> +/*
>> + * at91-sama5d2_icp.dts - Device Tree file for SAMA5D2 ICP board
>> + * SAMA5D2 Industrial Connectivity Board
>> + *
>> + * Copyright (c) 2018, Microchip Technology Inc.
>> + * 2018, Eugen Hristev <eugen.hristev at microchip.com>
>> + */
>> +/dts-v1/;
>> +#include "sama5d2.dtsi"
>> +#include "sama5d2-pinfunc.h"
>> +
>> +/ {
>> + model = "Microchip SAMA5D2 ICP";
>> + compatible = "atmel,sama5d2-icp", "atmel,sama5d27",
>> "atmel,sama5d2", "atmel,sama5";
>> +
>> + aliases {
>> + serial0 = &uart0;
>> + i2c1 = &i2c1;
>> + };
>> +
>> + chosen {
>> + u-boot,dm-pre-reloc;
>
> Please move all U-Boot specific DT properties into a separate
> foo-u-boot.dtsi file. That makes it easier to sync the dts files
> with the Linux versions.
This means that I would have to make a prerequisite patch that modifies
the current "sama5d2.dtsi" file ? Since this is the base include which I
am using for this board.
Or you mean some kind of small file just for this board that will only
add pre-reloc properties ?
>
>> + stdout-path = "serial0:115200n8";
>> + };
>> +
>> + ahb {
>> +
>> + sdmmc0: sdio-host at a0000000 {
>> + bus-width = <4>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_sdmmc0_default>;
>> + status = "okay";
>> + u-boot,dm-pre-reloc;
>
> Here as well.
>
>> + };
>> +
>> + apb {
>> + uart0: serial at f801c000 { /* mikrobus1 uart */
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_mikrobus1_uart>;
>> + u-boot,dm-pre-reloc;
>
> etc.
>
>> + status = "okay";
>> + };
>> +
>> + i2c1: i2c at fc028000 {
>> + dmas = <0>, <0>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_i2c1_default>;
>> + status = "okay";
>> +
>> + eeprom at 50 {
>> + compatible = "atmel,24c32";
>> + reg = <0x50>;
>> + pagesize = <16>;
>> + };
>> +
>> + eeprom at 52 {
>> + compatible = "atmel,24c32";
>> + reg = <0x52>;
>> + pagesize = <16>;
>> + };
>> +
>> + eeprom at 53 {
>> + compatible = "atmel,24c32";
>> + reg = <0x53>;
>> + pagesize = <16>;
>> + };
>> + };
>> + pioA: gpio at fc038000 {
>> + status = "okay";
>> + pinctrl {
>> + pinctrl_i2c1_default: i2c1_default {
>> + pinmux = <PIN_PD19__TWD1>,
>> + <PIN_PD20__TWCK1>;
>> + bias-disable;
>> + };
>> +
>> + pinctrl_sdmmc0_default: sdmmc0_default {
>> + pinmux = <PIN_PA1__SDMMC0_CMD>,
>> + <PIN_PA2__SDMMC0_DAT0>,
>> + <PIN_PA3__SDMMC0_DAT1>,
>> + <PIN_PA4__SDMMC0_DAT2>,
>> + <PIN_PA5__SDMMC0_DAT3>,
>> + <PIN_PA0__SDMMC0_CK>,
>> + <PIN_PA13__SDMMC0_CD>;
>> + bias-disable;
>> + u-boot,dm-pre-reloc;
>> + };
>> +
>> + pinctrl_mikrobus1_uart: mikrobus1_uart {
>> + pinmux = <PIN_PB26__URXD0>,
>> + <PIN_PB27__UTXD0>;
>> + bias-disable;
>> + u-boot,dm-pre-reloc;
>> + };
>> + };
>> + };
>> + };
>> + };
>> +};
>> diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
>> index a089e94..c3b21b7 100644
>> --- a/arch/arm/mach-at91/Kconfig
>> +++ b/arch/arm/mach-at91/Kconfig
>> @@ -180,6 +180,17 @@ config TARGET_SAMA5D27_SOM1_EK
>> processor-based SAMA5D2 MPU with up to 1 Gbit DDR2-SDRAM
>> in a single package.
>> +config TARGET_SAMA5D2_ICP
>> + bool "SAMA5D2 Industrial Connectivity Platform (ICP)"
>> + select CPU_V7A
>> + select SUPPORT_SPL
>> + select BOARD_EARLY_INIT_F
>> + select BOARD_LATE_INIT
>> + help
>> + The SAMA5D2 ICP embeds SAMA5D27 rev. C SoC, together with
>> + a 64Mbit QSPI flash, 3xMikrobus connectors, 4xUSB ,
>> + EtherCat and WILC3000 devices on board.
>> +
>> config TARGET_SAMA5D3_XPLAINED
>> bool "SAMA5D3 Xplained board"
>> select BOARD_EARLY_INIT_F
>> @@ -281,6 +292,7 @@ source "board/atmel/at91sam9x5ek/Kconfig"
>> source "board/atmel/sama5d2_ptc_ek/Kconfig"
>> source "board/atmel/sama5d2_xplained/Kconfig"
>> source "board/atmel/sama5d27_som1_ek/Kconfig"
>> +source "board/atmel/sama5d2_icp/Kconfig"
>> source "board/atmel/sama5d3_xplained/Kconfig"
>> source "board/atmel/sama5d3xek/Kconfig"
>> source "board/atmel/sama5d4_xplained/Kconfig"
>> diff --git a/board/atmel/sama5d2_icp/Kconfig
>> b/board/atmel/sama5d2_icp/Kconfig
>> new file mode 100644
>> index 0000000..3859845
>> --- /dev/null
>> +++ b/board/atmel/sama5d2_icp/Kconfig
>> @@ -0,0 +1,15 @@
>> +if TARGET_SAMA5D2_ICP
>> +
>> +config SYS_BOARD
>> + default "sama5d2_icp"
>> +
>> +config SYS_VENDOR
>> + default "atmel"
>> +
>> +config SYS_SOC
>> + default "at91"
>> +
>> +config SYS_CONFIG_NAME
>> + default "sama5d2_icp"
>> +
>> +endif
>> diff --git a/board/atmel/sama5d2_icp/MAINTAINERS
>> b/board/atmel/sama5d2_icp/MAINTAINERS
>> new file mode 100644
>> index 0000000..db984b6
>> --- /dev/null
>> +++ b/board/atmel/sama5d2_icp/MAINTAINERS
>> @@ -0,0 +1,7 @@
>> +SAMA5D2 ICP BOARD
>> +M: Eugen Hristev <eugen.hristev at microchip.com>
>> +S: Maintained
>> +F: board/atmel/sama5d2_icp/
>> +F: include/configs/sama5d2_icp.h
>> +F: configs/sama5d2_icp_mmc_defconfig
>> +
>> diff --git a/board/atmel/sama5d2_icp/Makefile
>> b/board/atmel/sama5d2_icp/Makefile
>> new file mode 100644
>> index 0000000..fd7e870
>> --- /dev/null
>> +++ b/board/atmel/sama5d2_icp/Makefile
>> @@ -0,0 +1,7 @@
>> +# SPDX-License-Identifier: GPL-2.0+
>> +#
>> +# Copyright (C) 2018 Microchip Technology Inc.
>> +# Eugen Hristev <eugen.hristev at microchip.com>
>> +#
>> +
>> +obj-y += sama5d2_icp.o
>> diff --git a/board/atmel/sama5d2_icp/sama5d2_icp.c
>> b/board/atmel/sama5d2_icp/sama5d2_icp.c
>> new file mode 100644
>> index 0000000..667d14c
>> --- /dev/null
>> +++ b/board/atmel/sama5d2_icp/sama5d2_icp.c
>> @@ -0,0 +1,197 @@
>> +// SPDX-License-Identifier: GPL-2.0+
>> +/*
>> + * Copyright (C) 2018 Microchip Technology, Inc.
>> + * Eugen Hristev <eugen.hristev at microchip.com>
>> + */
>> +
>> +#include <common.h>
>> +#include <debug_uart.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>
>> +
>> +DECLARE_GLOBAL_DATA_PTR;
>> +
>> +#ifdef CONFIG_BOARD_LATE_INIT
>> +int board_late_init(void)
>> +{
>> + return 0;
>> +}
>> +#endif
>
> You have selected BOARD_LATE_INIT for this board. So no need for
> these ifdef's here.
>
True, but if LATE_INIT is removed, this can stop compiling correctly.
>> +
>> +#ifdef CONFIG_DEBUG_UART_BOARD_INIT
>> +static void board_uart0_hw_init(void)
>> +{
>> + atmel_pio4_set_c_periph(AT91_PIO_PORTB, 26, ATMEL_PIO_PUEN_MASK);
>> /* URXD0 */
>> + atmel_pio4_set_c_periph(AT91_PIO_PORTB, 27, 0); /* UTXD0 */
>> +
>> + at91_periph_clk_enable(ATMEL_ID_UART0);
>> +}
>> +
>> +void board_debug_uart_init(void)
>> +{
>> + board_uart0_hw_init();
>> +}
>> +#endif
>> +
>> +#ifdef CONFIG_BOARD_EARLY_INIT_F
>> +int board_early_init_f(void)
>> +{
>> +#ifdef CONFIG_DEBUG_UART
>> + debug_uart_init();
>> +#endif
>> + return 0;
>> +}
>> +#endif
>
> Same for BOARD_EARLY_INIT_F.
>
> BTW: Do you really need to enable DEBUG_UART for all the at91
> platforms in the defconfig?
These are evaluation kits which people use for various testing, etc.
Just showing <debug uart> before the U-boot banner (relocation) is very
useful for people having issues with the DM Uart (this early one will
work with directly setting the pinout and clk ..., no DTB extract yet)
-> it means u-boot starts
>
>> +
>> +int board_init(void)
>> +{
>> + /* address of boot parameters */
>> + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
>> +
>> + return 0;
>> +}
>> +
>> +int dram_init(void)
>> +{
>> + gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
>> + CONFIG_SYS_SDRAM_SIZE);
>> + return 0;
>> +}
>> +
>> +#define MAC24AA_MAC_OFFSET 0xfa
>> +
>> +#ifdef CONFIG_MISC_INIT_R
>> +int misc_init_r(void)
>> +{
>> +#ifdef CONFIG_I2C_EEPROM
>> + at91_set_ethaddr(MAC24AA_MAC_OFFSET);
>> +#endif
>> + return 0;
>> +}
>> +#endif
>
> I would also remove these #ifdef's above to make the code less
> ugly.
It would break the build if the board removes the I2C support... you
still think it's better to not use the ifdefs ?
>
>> +
>> +/* SPL */
>> +#ifdef CONFIG_SPL_BUILD
>> +
>> +#ifdef CONFIG_SD_BOOT
>> +void spl_mmc_init(void)
>> +{
>> + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 1, 0); /* CMD */
>> + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 2, 0); /* DAT0 */
>> + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 3, 0); /* DAT1 */
>> + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 4, 0); /* DAT2 */
>> + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 5, 0); /* DAT3 */
>> + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 0, 0); /* CK */
>> + atmel_pio4_set_a_periph(AT91_PIO_PORTA, 13, 0); /* CD */
>> +
>> + at91_periph_clk_enable(ATMEL_ID_SDMMC0);
>> +}
>> +#endif
>> +
>> +void spl_board_init(void)
>> +{
>> +#ifdef CONFIG_SD_BOOT
>> + spl_mmc_init();
>> +#endif
>> +}
>> +
>> +void spl_display_print(void)
>> +{
>> +}
>> +
>> +static void ddrc_conf(struct atmel_mpddrc_config *ddrc)
>> +{
>> + ddrc->md = (ATMEL_MPDDRC_MD_DBW_32_BITS |
>> ATMEL_MPDDRC_MD_DDR3_SDRAM);
>> +
>> + ddrc->cr = (ATMEL_MPDDRC_CR_NC_COL_10 |
>> + ATMEL_MPDDRC_CR_NR_ROW_14 |
>> + ATMEL_MPDDRC_CR_CAS_DDR_CAS5 |
>> + ATMEL_MPDDRC_CR_DIC_DS |
>> + ATMEL_MPDDRC_CR_NB_8BANKS |
>> + ATMEL_MPDDRC_CR_DECOD_INTERLEAVED |
>> + ATMEL_MPDDRC_CR_UNAL_SUPPORTED);
>> +
>> + ddrc->rtr = 0x298;
>> +
>> + ddrc->tpr0 = ((6 << 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) |
>> + (4 << ATMEL_MPDDRC_TPR0_TMRD_OFFSET));
>> +
>> + ddrc->tpr1 = ((27 << ATMEL_MPDDRC_TPR1_TRFC_OFFSET) |
>> + (29 << ATMEL_MPDDRC_TPR1_TXSNR_OFFSET) |
>> + (0 << ATMEL_MPDDRC_TPR1_TXSRD_OFFSET) |
>> + (10 << ATMEL_MPDDRC_TPR1_TXP_OFFSET));
>> +
>> + ddrc->tpr2 = ((0 << ATMEL_MPDDRC_TPR2_TXARD_OFFSET) |
>> + (0 << ATMEL_MPDDRC_TPR2_TXARDS_OFFSET) |
>> + (0 << ATMEL_MPDDRC_TPR2_TRPA_OFFSET) |
>> + (4 << ATMEL_MPDDRC_TPR2_TRTP_OFFSET) |
>> + (7 << 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_(100);
>> + 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(0x5355, &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(82) |
>> + 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/sama5d2_icp_mmc_defconfig
>> b/configs/sama5d2_icp_mmc_defconfig
>> new file mode 100644
>> index 0000000..8d609ca
>> --- /dev/null
>> +++ b/configs/sama5d2_icp_mmc_defconfig
>> @@ -0,0 +1,72 @@
>> +CONFIG_ARM=y
>> +CONFIG_ARCH_AT91=y
>> +CONFIG_SYS_TEXT_BASE=0x26f00000
>> +CONFIG_TARGET_SAMA5D2_ICP=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_SPL=y
>> +CONFIG_DEBUG_UART_BOARD_INIT=y
>> +CONFIG_DEBUG_UART_BASE=0xf801c000
>> +CONFIG_DEBUG_UART_CLOCK=83000000
>
> See above. Do you really need DEBUG_UART in the default defconfig?
>
>> +CONFIG_SPL_FAT_SUPPORT=y
>> +CONFIG_SPL_LIBDISK_SUPPORT=y
>> +CONFIG_DEFAULT_DEVICE_TREE="at91-sama5d2_icp"
>> +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_DISPLAY_BOARDINFO is not set
>> +CONFIG_SPL_SEPARATE_BSS=y
>> +CONFIG_SPL_DISPLAY_PRINT=y
>> +# CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR is not set
>> +CONFIG_SPL_RAM_SUPPORT=y
>> +CONFIG_HUSH_PARSER=y
>> +CONFIG_CMD_BOOTZ=y
>> +# CONFIG_CMD_IMI is not set
>> +# CONFIG_CMD_FLASH is not set
>> +CONFIG_CMD_I2C=y
>> +# CONFIG_CMD_LOADS is not set
>> +CONFIG_CMD_MMC=y
>> +CONFIG_CMD_DHCP=y
>> +CONFIG_CMD_PING=y
>> +CONFIG_CMD_EXT4=y
>> +CONFIG_CMD_FAT=y
>> +CONFIG_OF_CONTROL=y
>> +CONFIG_SPL_OF_CONTROL=y
>> +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_I2C_EEPROM=y
>> +CONFIG_DM_MMC=y
>> +CONFIG_MMC_SDHCI=y
>> +CONFIG_MMC_SDHCI_ATMEL=y
>> +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_TIMER=y
>> +CONFIG_SPL_TIMER=y
>> +CONFIG_ATMEL_PIT_TIMER=y
>> diff --git a/include/configs/sama5d2_icp.h
>> b/include/configs/sama5d2_icp.h
>> new file mode 100644
>> index 0000000..f947a3c
>> --- /dev/null
>> +++ b/include/configs/sama5d2_icp.h
>> @@ -0,0 +1,70 @@
>> +/* SPDX-License-Identifier: GPL-2.0+ */
>> +/*
>> + * Configuration file for the SAMA5D2 ICP Board.
>> + *
>> + * Copyright (C) 2018 Microchip Corporation
>> + * Eugen Hristev <eugen.hristev 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 12000000 /* from 12 MHz
>> crystal */
>> +
>> +#define CONFIG_MISC_INIT_R
>> +
>> +/* SDRAM */
>> +#define CONFIG_NR_DRAM_BANKS 1
>> +#define CONFIG_SYS_SDRAM_BASE 0x20000000
>> +#define CONFIG_SYS_SDRAM_SIZE 0x20000000
>> +
>> +#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 */
>> +#undef CONFIG_CMD_NAND
>> +
>> +/* SPI flash */
>> +#define CONFIG_SF_DEFAULT_SPEED 66000000
>> +
>> +#undef CONFIG_BOOTCOMMAND
>> +#ifdef CONFIG_SD_BOOT
>> +/* u-boot env in sd/mmc card */
>> +#define FAT_ENV_INTERFACE "mmc"
>> +#define FAT_ENV_DEVICE_AND_PART "0"
>> +#define FAT_ENV_FILE "uboot.env"
>> +#define CONFIG_ENV_SIZE 0x4000
>> +/* bootstrap + u-boot + env in sd card */
>> +#define CONFIG_BOOTCOMMAND "fatload mmc 0:1 0x21000000
>> at91-sama5d2_icp.dtb; " \
>> + "fatload mmc 0:1 0x22000000 zImage; " \
>> + "bootz 0x22000000 - 0x21000000"
>> +#undef CONFIG_BOOTARGS
>> +#define CONFIG_BOOTARGS \
>> + "console=ttyS0,115200 earlyprintk root=/dev/mmcblk0p2 rw rootwait"
>> +#endif
>> +
>> +/* SPL */
>> +#define CONFIG_SPL_TEXT_BASE 0x200000
>> +#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
>>
>
> Thanks,
> Stefan
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