ARM: 5851/1: [AT91] AT572D940HF-EK board support

Add support for the Atmel AT572D940HF-EK board (development board for
the AT572D940HF processor).

Signed-off-by: Antonio R. Costa <costa.antonior@gmail.com>
Signed-off-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

3 files changed, 348 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index c67fa3b..2db43a5 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -396,6 +396,23 @@ endif
 
 # ----------------------------------------------------------
 
+if ARCH_AT572D940HF
+
+comment "AT572D940HF Board Type"
+
+config MACH_AT572D940HFEB
+	bool "AT572D940HF-EK"
+	depends on ARCH_AT572D940HF
+	select HAVE_AT91_DATAFLASH_CARD
+	select HAVE_NAND_ATMEL_BUSWIDTH_16
+	help
+	  Select this if you are using Atmel's AT572D940HF-EK evaluation kit.
+	  <http://www.atmel.com/products/diopsis/default.asp>
+
+endif
+
+# ----------------------------------------------------------
+
 if ARCH_AT91X40
 
 comment "AT91X40 Board Type"
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 8ddce96..027dd57 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -70,6 +70,9 @@ obj-$(CONFIG_MACH_AT91SAM9G45EKES) += board-sam9m10g45ek.o
 # AT91CAP9 board-specific support
 obj-$(CONFIG_MACH_AT91CAP9ADK)	+= board-cap9adk.o
 
+# AT572D940HF board-specific support
+obj-$(CONFIG_MACH_AT572D940HFEB) += board-at572d940hf_ek.o
+
 # AT91X40 board-specific support
 obj-$(CONFIG_MACH_AT91EB01)	+= board-eb01.o
 
diff --git a/arch/arm/mach-at91/board-at572d940hf_ek.c b/arch/arm/mach-at91/board-at572d940hf_ek.c
new file mode 100644
index 0000000..5daff27
--- /dev/null
+++ b/arch/arm/mach-at91/board-at572d940hf_ek.c
@@ -0,0 +1,328 @@
+/*
+ * linux/arch/arm/mach-at91/board-at572d940hf_ek.c
+ *
+ * Copyright (C) 2008 Atmel Antonio R. Costa <costa.antonior@gmail.com>
+ * Copyright (C) 2005 SAN People
+ *
+ * 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
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/ds1305.h>
+#include <linux/irq.h>
+#include <linux/mtd/physmap.h>
+
+#include <mach/hardware.h>
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/board.h>
+#include <mach/gpio.h>
+#include <mach/at91sam9_smc.h>
+
+#include "sam9_smc.h"
+#include "generic.h"
+
+
+static void __init eb_map_io(void)
+{
+	/* Initialize processor: 12.500 MHz crystal */
+	at572d940hf_initialize(12000000);
+
+	/* DBGU on ttyS0. (Rx & Tx only) */
+	at91_register_uart(0, 0, 0);
+
+	/* USART0 on ttyS1. (Rx & Tx only) */
+	at91_register_uart(AT572D940HF_ID_US0, 1, 0);
+
+	/* USART1 on ttyS2. (Rx & Tx only) */
+	at91_register_uart(AT572D940HF_ID_US1, 2, 0);
+
+	/* USART2 on ttyS3. (Tx & Rx only */
+	at91_register_uart(AT572D940HF_ID_US2, 3, 0);
+
+	/* set serial console to ttyS0 (ie, DBGU) */
+	at91_set_serial_console(0);
+}
+
+static void __init eb_init_irq(void)
+{
+	at572d940hf_init_interrupts(NULL);
+}
+
+
+/*
+ * USB Host Port
+ */
+static struct at91_usbh_data __initdata eb_usbh_data = {
+	.ports		= 2,
+};
+
+
+/*
+ * USB Device Port
+ */
+static struct at91_udc_data __initdata eb_udc_data = {
+	.vbus_pin	= 0,		/* no VBUS detection,UDC always on */
+	.pullup_pin	= 0,		/* pull-up driven by UDC */
+};
+
+
+/*
+ * MCI (SD/MMC)
+ */
+static struct at91_mmc_data __initdata eb_mmc_data = {
+	.wire4		= 1,
+/*	.det_pin	= ... not connected */
+/*	.wp_pin		= ... not connected */
+/*	.vcc_pin	= ... not connected */
+};
+
+
+/*
+ * MACB Ethernet device
+ */
+static struct at91_eth_data __initdata eb_eth_data = {
+	.phy_irq_pin	= AT91_PIN_PB25,
+	.is_rmii	= 1,
+};
+
+/*
+ * NOR flash
+ */
+
+static struct mtd_partition eb_nor_partitions[] = {
+	{
+		.name		= "Raw Environment",
+		.offset		= 0,
+		.size		= SZ_4M,
+		.mask_flags	= 0,
+	},
+	{
+		.name		= "OS FS",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= 3 * SZ_1M,
+		.mask_flags	= 0,
+	},
+	{
+		.name		= "APP FS",
+		.offset		= MTDPART_OFS_APPEND,
+		.size		= MTDPART_SIZ_FULL,
+		.mask_flags	= 0,
+	},
+};
+
+static void nor_flash_set_vpp(struct map_info* mi, int i) {
+};
+
+static struct physmap_flash_data nor_flash_data = {
+	.width		= 4,
+	.parts		= eb_nor_partitions,
+	.nr_parts	= ARRAY_SIZE(eb_nor_partitions),
+	.set_vpp	= nor_flash_set_vpp,
+};
+
+static struct resource nor_flash_resources[] = {
+	{
+		.start	= AT91_CHIPSELECT_0,
+		.end	= AT91_CHIPSELECT_0 + SZ_16M - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device nor_flash = {
+	.name		= "physmap-flash",
+	.id		= 0,
+	.dev		= {
+				.platform_data = &nor_flash_data,
+			},
+	.resource	= nor_flash_resources,
+	.num_resources	= ARRAY_SIZE(nor_flash_resources),
+};
+
+static struct sam9_smc_config __initdata eb_nor_smc_config = {
+	.ncs_read_setup		= 1,
+	.nrd_setup		= 1,
+	.ncs_write_setup	= 1,
+	.nwe_setup		= 1,
+
+	.ncs_read_pulse		= 7,
+	.nrd_pulse		= 7,
+	.ncs_write_pulse	= 7,
+	.nwe_pulse		= 7,
+
+	.read_cycle		= 9,
+	.write_cycle		= 9,
+
+	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_32,
+	.tdf_cycles		= 1,
+};
+
+static void __init eb_add_device_nor(void)
+{
+	/* configure chip-select 0 (NOR) */
+	sam9_smc_configure(0, &eb_nor_smc_config);
+	platform_device_register(&nor_flash);
+}
+
+/*
+ * NAND flash
+ */
+static struct mtd_partition __initdata eb_nand_partition[] = {
+	{
+		.name	= "Partition 1",
+		.offset	= 0,
+		.size	= SZ_16M,
+	},
+	{
+		.name	= "Partition 2",
+		.offset = MTDPART_OFS_NXTBLK,
+		.size	= MTDPART_SIZ_FULL,
+	}
+};
+
+static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
+{
+	*num_partitions = ARRAY_SIZE(eb_nand_partition);
+	return eb_nand_partition;
+}
+
+static struct atmel_nand_data __initdata eb_nand_data = {
+	.ale		= 22,
+	.cle		= 21,
+/*	.det_pin	= ... not connected */
+/*	.rdy_pin	= AT91_PIN_PC16, */
+	.enable_pin	= AT91_PIN_PA15,
+	.partition_info	= nand_partitions,
+#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
+	.bus_width_16	= 1,
+#else
+	.bus_width_16	= 0,
+#endif
+};
+
+static struct sam9_smc_config __initdata eb_nand_smc_config = {
+	.ncs_read_setup		= 0,
+	.nrd_setup		= 0,
+	.ncs_write_setup	= 1,
+	.nwe_setup		= 1,
+
+	.ncs_read_pulse		= 3,
+	.nrd_pulse		= 3,
+	.ncs_write_pulse	= 3,
+	.nwe_pulse		= 3,
+
+	.read_cycle		= 5,
+	.write_cycle		= 5,
+
+	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
+	.tdf_cycles		= 12,
+};
+
+static void __init eb_add_device_nand(void)
+{
+	/* setup bus-width (8 or 16) */
+	if (eb_nand_data.bus_width_16)
+		eb_nand_smc_config.mode |= AT91_SMC_DBW_16;
+	else
+		eb_nand_smc_config.mode |= AT91_SMC_DBW_8;
+
+	/* configure chip-select 3 (NAND) */
+	sam9_smc_configure(3, &eb_nand_smc_config);
+
+	at91_add_device_nand(&eb_nand_data);
+}
+
+
+/*
+ * SPI devices
+ */
+static struct resource rtc_resources[] = {
+	[0] = {
+		.start	= AT572D940HF_ID_IRQ1,
+		.end	= AT572D940HF_ID_IRQ1,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct ds1305_platform_data ds1306_data = {
+	.is_ds1306	= true,
+	.en_1hz		= false,
+};
+
+static struct spi_board_info eb_spi_devices[] = {
+	{	/* RTC Dallas DS1306 */
+		.modalias	= "rtc-ds1305",
+		.chip_select	= 3,
+		.mode		= SPI_CS_HIGH | SPI_CPOL | SPI_CPHA,
+		.max_speed_hz	= 500000,
+		.bus_num	= 0,
+		.irq		= AT572D940HF_ID_IRQ1,
+		.platform_data	= (void *) &ds1306_data,
+	},
+#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
+	{	/* Dataflash card */
+		.modalias	= "mtd_dataflash",
+		.chip_select	= 0,
+		.max_speed_hz	= 15 * 1000 * 1000,
+		.bus_num	= 0,
+	},
+#endif
+};
+
+static void __init eb_board_init(void)
+{
+	/* Serial */
+	at91_add_device_serial();
+	/* USB Host */
+	at91_add_device_usbh(&eb_usbh_data);
+	/* USB Device */
+	at91_add_device_udc(&eb_udc_data);
+	/* I2C */
+	at91_add_device_i2c(NULL, 0);
+	/* NOR */
+	eb_add_device_nor();
+	/* NAND */
+	eb_add_device_nand();
+	/* SPI */
+	at91_add_device_spi(eb_spi_devices, ARRAY_SIZE(eb_spi_devices));
+	/* MMC */
+	at91_add_device_mmc(0, &eb_mmc_data);
+	/* Ethernet */
+	at91_add_device_eth(&eb_eth_data);
+	/* mAgic */
+	at91_add_device_mAgic();
+}
+
+MACHINE_START(AT572D940HFEB, "Atmel AT91D940HF-EB")
+	/* Maintainer: Atmel <costa.antonior@gmail.com> */
+	.phys_io	= AT91_BASE_SYS,
+	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
+	.boot_params	= AT91_SDRAM_BASE + 0x100,
+	.timer		= &at91sam926x_timer,
+	.map_io		= eb_map_io,
+	.init_irq	= eb_init_irq,
+	.init_machine	= eb_board_init,
+MACHINE_END