d0760b3bc8
The Atmel AT91SAM9263 processor includes many more integrated
peripherals than Atmel's previous ARM9-based AT91 processors, so this
has necessitated a few changes to the core AT91 support.
These changes are:
* The system peripheral I/O region we remap has increased from
0xFFFA0000..0xFFFFFFFF to 0xFFF78000..0xFFFFFFFF.
* The increased I/O region forces changes to entry-macro.S and
debug-macro.S due to ARM's limited immediate offset addressing
modes.
* Maximum number of GPIO banks increases to 5.
* 2 MMC controllers so the board-setup code needs to specify which
controller it wishes to use when calling at91_add_device_mmc().
Original patch from Nicolas Ferre.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
260 lines
6.2 KiB
C
260 lines
6.2 KiB
C
/*
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* linux/arch/arm/mach-at91/board-sam9261ek.c
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*
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* Copyright (C) 2005 SAN People
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* Copyright (C) 2006 Atmel
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/spi/spi.h>
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#include <linux/dm9000.h>
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#include <asm/hardware.h>
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/irq.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <asm/arch/board.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/at91sam926x_mc.h>
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#include "generic.h"
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/*
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* Serial port configuration.
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* 0 .. 2 = USART0 .. USART2
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* 3 = DBGU
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*/
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static struct at91_uart_config __initdata ek_uart_config = {
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.console_tty = 0, /* ttyS0 */
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.nr_tty = 1,
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.tty_map = { 3, -1, -1, -1 } /* ttyS0, ..., ttyS3 */
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};
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static void __init ek_map_io(void)
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{
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/* Initialize processor: 18.432 MHz crystal */
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at91sam9261_initialize(18432000);
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/* Setup the serial ports and console */
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at91_init_serial(&ek_uart_config);
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}
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static void __init ek_init_irq(void)
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{
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at91sam9261_init_interrupts(NULL);
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}
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/*
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* DM9000 ethernet device
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*/
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#if defined(CONFIG_DM9000)
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static struct resource at91sam9261_dm9000_resource[] = {
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[0] = {
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.start = AT91_CHIPSELECT_2,
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.end = AT91_CHIPSELECT_2 + 3,
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.flags = IORESOURCE_MEM
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},
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[1] = {
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.start = AT91_CHIPSELECT_2 + 0x44,
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.end = AT91_CHIPSELECT_2 + 0xFF,
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.flags = IORESOURCE_MEM
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},
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[2] = {
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.start = AT91_PIN_PC11,
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.end = AT91_PIN_PC11,
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.flags = IORESOURCE_IRQ
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}
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};
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static struct dm9000_plat_data dm9000_platdata = {
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.flags = DM9000_PLATF_16BITONLY,
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};
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static struct platform_device at91sam9261_dm9000_device = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(at91sam9261_dm9000_resource),
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.resource = at91sam9261_dm9000_resource,
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.dev = {
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.platform_data = &dm9000_platdata,
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}
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};
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static void __init ek_add_device_dm9000(void)
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{
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/*
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* Configure Chip-Select 2 on SMC for the DM9000.
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* Note: These timings were calculated for MASTER_CLOCK = 100000000
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* according to the DM9000 timings.
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*/
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at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
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at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
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at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
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/* Configure Reset signal as output */
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at91_set_gpio_output(AT91_PIN_PC10, 0);
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/* Configure Interrupt pin as input, no pull-up */
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at91_set_gpio_input(AT91_PIN_PC11, 0);
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platform_device_register(&at91sam9261_dm9000_device);
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}
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#else
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static void __init ek_add_device_dm9000(void) {}
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#endif /* CONFIG_DM9000 */
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/*
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* USB Host Port
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*/
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static struct at91_usbh_data __initdata ek_usbh_data = {
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.ports = 2,
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};
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/*
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* USB Device Port
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*/
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static struct at91_udc_data __initdata ek_udc_data = {
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.vbus_pin = AT91_PIN_PB29,
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.pullup_pin = 0, /* pull-up driven by UDC */
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};
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/*
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* MCI (SD/MMC)
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*/
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static struct at91_mmc_data __initdata ek_mmc_data = {
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.wire4 = 1,
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// .det_pin = ... not connected
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// .wp_pin = ... not connected
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// .vcc_pin = ... not connected
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};
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/*
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* NAND flash
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*/
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static struct mtd_partition __initdata ek_nand_partition[] = {
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{
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.name = "Partition 1",
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.offset = 0,
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.size = 256 * 1024,
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},
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{
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.name = "Partition 2",
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.offset = 256 * 1024 ,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct mtd_partition *nand_partitions(int size, int *num_partitions)
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{
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*num_partitions = ARRAY_SIZE(ek_nand_partition);
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return ek_nand_partition;
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}
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static struct at91_nand_data __initdata ek_nand_data = {
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.ale = 22,
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.cle = 21,
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// .det_pin = ... not connected
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.rdy_pin = AT91_PIN_PC15,
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.enable_pin = AT91_PIN_PC14,
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.partition_info = nand_partitions,
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#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
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.bus_width_16 = 1,
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#else
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.bus_width_16 = 0,
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#endif
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};
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/*
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* SPI devices
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*/
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static struct spi_board_info ek_spi_devices[] = {
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{ /* DataFlash chip */
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.modalias = "mtd_dataflash",
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.chip_select = 0,
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.max_speed_hz = 15 * 1000 * 1000,
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.bus_num = 0,
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},
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#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
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{ /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
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.modalias = "mtd_dataflash",
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.chip_select = 3,
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.max_speed_hz = 15 * 1000 * 1000,
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.bus_num = 0,
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},
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#elif defined(CONFIG_SND_AT73C213)
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{ /* AT73C213 DAC */
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.modalias = "snd_at73c213",
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.chip_select = 3,
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.max_speed_hz = 10 * 1000 * 1000,
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.bus_num = 0,
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},
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#endif
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};
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static void __init ek_board_init(void)
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{
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/* Serial */
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at91_add_device_serial();
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/* USB Host */
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at91_add_device_usbh(&ek_usbh_data);
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/* USB Device */
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at91_add_device_udc(&ek_udc_data);
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/* I2C */
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at91_add_device_i2c();
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/* NAND */
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at91_add_device_nand(&ek_nand_data);
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/* DM9000 ethernet */
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ek_add_device_dm9000();
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/* spi0 and mmc/sd share the same PIO pins */
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#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
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/* SPI */
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at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
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#else
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/* MMC */
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at91_add_device_mmc(0, &ek_mmc_data);
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#endif
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}
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MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
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/* Maintainer: Atmel */
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.phys_io = AT91_BASE_SYS,
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.io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
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.boot_params = AT91_SDRAM_BASE + 0x100,
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.timer = &at91sam926x_timer,
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.map_io = ek_map_io,
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.init_irq = ek_init_irq,
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.init_machine = ek_board_init,
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MACHINE_END
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