Add support for the Calao SBC35-A9G20 board

The Calao SBC35-A9G20 board is manufactured and sold by Calao Systems
<http://www.calao-systems.com>. It is built around an AT91SAM9G20 ARM SoC
running at 400MHz. It features an Ethernet port, an SPI RTC backed by an onboard
battery , an SD/MMC slot, a CompactFlash slot, 64Mo of SDRAM, 256Mo of NAND
flash, two USB host ports, and an USB device port. More informations can be
found at <http://www.calao-systems.com/articles.php?lng=en&pg=5936>

Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>

1 files changed, 194 insertions, 0 deletions

diff --git a/include/configs/sbc35_a9g20.h b/include/configs/sbc35_a9g20.h
new file mode 100644
index 0000000..f4b3477
--- /dev/null
+++ b/include/configs/sbc35_a9g20.h
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2009
+ * Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
+ *
+ * Configuation settings for the Calao SBC35-A9G20 board
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#if defined(CONFIG_SBC35_A9G20_NANDFLASH) || defined(CONFIG_SBC35_A9G20_EEPROM)
+#define CONFIG_SBC35_A9G20
+#endif
+
+#define CONFIG_AT91SAM9G20
+
+#if defined(CONFIG_SBC35_A9G20_NANDFLASH)
+#define CONFIG_ENV_IS_IN_NAND
+#else
+#define CONFIG_ENV_IS_IN_EEPROM
+#endif
+
+/* ARM asynchronous clock */
+#define AT91_MAIN_CLOCK		12000000	/* 12.000 MHz crystal */
+#define CONFIG_SYS_HZ		1000
+
+#define CONFIG_ARM926EJS	1	/* This is an ARM926EJS Core	*/
+
+#define CONFIG_ARCH_CPU_INIT
+#undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff	*/
+
+#define CONFIG_CMDLINE_TAG		1	/* enable passing of ATAGs */
+#define CONFIG_SETUP_MEMORY_TAGS	1
+#define CONFIG_INITRD_TAG		1
+
+#define CONFIG_SKIP_LOWLEVEL_INIT
+#define CONFIG_SKIP_RELOCATE_UBOOT
+
+/*
+ * Hardware drivers
+ */
+#define CONFIG_ATMEL_USART
+#define CONFIG_USART0
+#undef CONFIG_USART1
+#undef CONFIG_USART2
+#undef CONFIG_USART3
+
+#define CONFIG_BOOTDELAY	3
+
+/*
+ * BOOTP options
+ */
+#define CONFIG_BOOTP_BOOTFILESIZE	1
+#define CONFIG_BOOTP_BOOTPATH		1
+#define CONFIG_BOOTP_GATEWAY		1
+#define CONFIG_BOOTP_HOSTNAME		1
+
+/*
+ * Command line configuration.
+ */
+#include <config_cmd_default.h>
+#undef CONFIG_CMD_BDI
+#undef CONFIG_CMD_FPGA
+#undef CONFIG_CMD_IMI
+#undef CONFIG_CMD_IMLS
+#undef CONFIG_CMD_LOADS
+#undef CONFIG_CMD_SOURCE
+
+#define CONFIG_CMD_PING		1
+#define CONFIG_CMD_DHCP		1
+#define CONFIG_CMD_USB		1
+
+/* SDRAM */
+#define CONFIG_NR_DRAM_BANKS	1
+#define PHYS_SDRAM		0x20000000
+#define PHYS_SDRAM_SIZE		0x04000000	/* 64 megs */
+
+/* SPI EEPROM */
+#define CONFIG_SPI
+#define CONFIG_CMD_SPI
+#define CONFIG_ATMEL_SPI
+#define CONFIG_SYS_SPI_WRITE_TOUT	(5 * CONFIG_SYS_HZ)
+
+#define CONFIG_CMD_EEPROM
+#define CONFIG_SPI_M95XXX
+#define CONFIG_SYS_EEPROM_SIZE 0x10000
+#define CONFIG_SYS_EEPROM_PAGE_WRITE_BITS 5
+
+/* SPI RTC */
+#define CONFIG_CMD_DATE
+#define CONFIG_RTC_M41T94
+#define CONFIG_M41T94_SPI_BUS 0
+#define CONFIG_M41T94_SPI_CS 0
+
+/* NAND flash */
+#define CONFIG_CMD_NAND
+#define CONFIG_NAND_ATMEL
+#define CONFIG_SYS_MAX_NAND_DEVICE		1
+#define CONFIG_SYS_NAND_BASE			0x40000000
+#define CONFIG_SYS_NAND_DBW_8			1
+/* our ALE is AD21 */
+#define CONFIG_SYS_NAND_MASK_ALE		(1 << 21)
+/* our CLE is AD22 */
+#define CONFIG_SYS_NAND_MASK_CLE		(1 << 22)
+#define CONFIG_SYS_NAND_ENABLE_PIN		AT91_PIN_PC14
+#define CONFIG_SYS_NAND_READY_PIN		AT91_PIN_PC13
+
+/* NOR flash - no real flash on this board */
+#define CONFIG_SYS_NO_FLASH			1
+
+/* Ethernet */
+#define CONFIG_MACB			1
+#define CONFIG_RMII			1
+#define CONFIG_NET_MULTI		1
+#define CONFIG_NET_RETRY_COUNT		20
+#define CONFIG_RESET_PHY_R		1
+#define CONFIG_MACB_SEARCH_PHY		1
+
+/* USB */
+#define CONFIG_USB_ATMEL
+#define CONFIG_USB_OHCI_NEW		1
+#define CONFIG_DOS_PARTITION		1
+#define CONFIG_SYS_USB_OHCI_CPU_INIT	1
+#define CONFIG_SYS_USB_OHCI_REGS_BASE	0x00500000	/* AT91SAM9260_UHP_BASE */
+#define CONFIG_SYS_USB_OHCI_SLOT_NAME	"at91sam9260"
+#define CONFIG_SYS_USB_OHCI_MAX_ROOT_PORTS	2
+#define CONFIG_USB_STORAGE		1
+#define CONFIG_CMD_FAT			1
+
+#define CONFIG_SYS_LOAD_ADDR		0x22000000	/* load address */
+
+#define CONFIG_SYS_MEMTEST_START	PHYS_SDRAM
+#define CONFIG_SYS_MEMTEST_END		0x23e00000
+
+/* Env in EEPROM, bootstrap + u-boot in NAND*/
+#ifdef CONFIG_ENV_IS_IN_EEPROM
+#define CONFIG_ENV_OFFSET	0x20
+#define CONFIG_ENV_SIZE		0x1000
+#endif
+
+/* Env, bootstrap and u-boot in NAND */
+#ifdef CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_OFFSET		0x60000
+#define CONFIG_ENV_OFFSET_REDUND	0x80000
+#define CONFIG_ENV_SIZE			0x20000
+#endif
+
+#define CONFIG_BOOTCOMMAND	"nboot 0x21000000 0 400000"
+#define CONFIG_BOOTARGS		"console=ttyS0,115200 " \
+				"root=/dev/mtdblock1 " \
+				"mtdparts=atmel_nand:16M(kernel)ro," \
+				"120M(rootfs),-(other) " \
+				"rw rootfstype=jffs2"
+
+#define CONFIG_BAUDRATE			115200
+#define CONFIG_SYS_BAUDRATE_TABLE	{115200 , 19200, 38400, 57600, 9600 }
+
+#define CONFIG_SYS_PROMPT	"U-Boot> "
+#define CONFIG_SYS_CBSIZE	256
+#define CONFIG_SYS_MAXARGS	16
+#define CONFIG_SYS_PBSIZE	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+#define CONFIG_SYS_LONGHELP	1
+#define CONFIG_CMDLINE_EDITING	1
+
+/*
+ * Size of malloc() pool
+ */
+#define CONFIG_SYS_MALLOC_LEN	ROUND(3 * CONFIG_ENV_SIZE + 128 * 1024, 0x1000)
+#define CONFIG_SYS_GBL_DATA_SIZE	128	/* 128 bytes for initial data */
+#define CONFIG_STACKSIZE		(32 * 1024)	/* regular stack */
+
+#ifdef CONFIG_USE_IRQ
+#error CONFIG_USE_IRQ not supported
+#endif
+
+#endif