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 c67fa3b7eeb1..2db43a5ddd9b 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 8ddce96b6aa5..027dd570dcc3 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 000000000000..5daff277f53e
--- /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