[U-Boot] [PATCH v2] board: atmel: add SAMA5D2 ICP board

Eugen.Hristev at microchip.com Eugen.Hristev at microchip.com
Tue Apr 9 13:41:46 UTC 2019


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>
---

Changes in v2:
 - created at91-sama5d2_icp-u-boot.dtsi with the pre-reloc properties
 - removed some #ifdef as suggested by Stefan
 - fixed issue with wrong SPL FAT FS in defconfig
 - fixed build issue with wrong DRAM_BANKS redefine


 arch/arm/dts/Makefile                     |   3 +
 arch/arm/dts/at91-sama5d2_icp-u-boot.dtsi |  30 +++++
 arch/arm/dts/at91-sama5d2_icp.dts         |  95 +++++++++++++++
 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     | 191 ++++++++++++++++++++++++++++++
 configs/sama5d2_icp_mmc_defconfig         |  73 ++++++++++++
 include/configs/sama5d2_icp.h             |  69 +++++++++++
 10 files changed, 502 insertions(+)
 create mode 100644 arch/arm/dts/at91-sama5d2_icp-u-boot.dtsi
 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-u-boot.dtsi b/arch/arm/dts/at91-sama5d2_icp-u-boot.dtsi
new file mode 100644
index 0000000..347fa81
--- /dev/null
+++ b/arch/arm/dts/at91-sama5d2_icp-u-boot.dtsi
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * at91-sama5d2_icp-for-uboot.dtsi - Device Tree file for SAMA5D2 ICP board
+ *			SAMA5D2 Industrial Connectivity Platform
+ *
+ *  Copyright (c) 2019, Microchip Technology Inc. and its subsidiaries
+ *                2019, Eugen Hristev <eugen.hristev at microchip.com>
+ */
+
+/ {
+	chosen {
+		u-boot,dm-pre-reloc;
+	};
+};
+
+&sdmmc0 {
+	u-boot,dm-pre-reloc;
+};
+
+&uart0 { /* mikrobus1 uart */
+	u-boot,dm-pre-reloc;
+};
+
+&pinctrl_sdmmc0_default {
+	u-boot,dm-pre-reloc;
+};
+
+&pinctrl_mikrobus1_uart {
+	u-boot,dm-pre-reloc;
+};
diff --git a/arch/arm/dts/at91-sama5d2_icp.dts b/arch/arm/dts/at91-sama5d2_icp.dts
new file mode 100644
index 0000000..e777754
--- /dev/null
+++ b/arch/arm/dts/at91-sama5d2_icp.dts
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * 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 {
+		stdout-path = "serial0:115200n8";
+	};
+
+	ahb {
+
+		sdmmc0: sdio-host at a0000000 {
+			bus-width = <4>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&pinctrl_sdmmc0_default>;
+			status = "okay";
+		};
+
+		apb {
+			uart0: serial at f801c000 { /* mikrobus1 uart */
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_mikrobus1_uart>;
+				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;
+					};
+
+					pinctrl_mikrobus1_uart: mikrobus1_uart {
+						pinmux = <PIN_PB26__URXD0>,
+							 <PIN_PB27__UTXD0>;
+						bias-disable;
+					};
+				};
+			};
+		};
+	};
+};
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..807cfcd
--- /dev/null
+++ b/board/atmel/sama5d2_icp/sama5d2_icp.c
@@ -0,0 +1,191 @@
+// 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;
+
+int board_late_init(void)
+{
+	return 0;
+}
+
+#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
+
+int board_early_init_f(void)
+{
+#ifdef CONFIG_DEBUG_UART
+	debug_uart_init();
+#endif
+	return 0;
+}
+
+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
+
+int misc_init_r(void)
+{
+#ifdef CONFIG_I2C_EEPROM
+	at91_set_ethaddr(MAC24AA_MAC_OFFSET);
+#endif
+	return 0;
+}
+
+/* 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..49b6f54
--- /dev/null
+++ b/configs/sama5d2_icp_mmc_defconfig
@@ -0,0 +1,73 @@
+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
+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_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_DEFAULT_DEVICE_TREE="at91-sama5d2_icp"
+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
+CONFIG_OF_LIBFDT_OVERLAY=y
diff --git a/include/configs/sama5d2_icp.h b/include/configs/sama5d2_icp.h
new file mode 100644
index 0000000..afcd22b
--- /dev/null
+++ b/include/configs/sama5d2_icp.h
@@ -0,0 +1,69 @@
+/* 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_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
-- 
2.7.4



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