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[ARM] 5130/4: Support for the at91sam9g20
Support for the at91sam9g20 : Atmel 400Mhz ARM 926ej-s SOC. AT91sam9g20 is an evolution of the at91sam9260 with a faster clock speed. We created a new board for this device but based the chip support directly on 9260 files with little updates. Here is the chip page on Atmel wabsite: http://atmel.com/dyn/products/product_card.asp?part_id=4337 Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com> Signed-off-by: Justin Waters <justin.waters@timesys.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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sedji gaouaou
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Russell King
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Jul 10, 2008
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| /* | ||
| * Copyright (C) 2005 SAN People | ||
| * Copyright (C) 2008 Atmel | ||
| * | ||
| * 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/at73c213.h> | ||
| #include <linux/clk.h> | ||
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| #include <asm/hardware.h> | ||
| #include <asm/setup.h> | ||
| #include <asm/mach-types.h> | ||
| #include <asm/irq.h> | ||
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| #include <asm/mach/arch.h> | ||
| #include <asm/mach/map.h> | ||
| #include <asm/mach/irq.h> | ||
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| #include <asm/arch/board.h> | ||
| #include <asm/arch/gpio.h> | ||
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| #include "generic.h" | ||
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| static void __init ek_map_io(void) | ||
| { | ||
| /* Initialize processor: 18.432 MHz crystal */ | ||
| at91sam9260_initialize(18432000); | ||
|
|
||
| /* DGBU on ttyS0. (Rx & Tx only) */ | ||
| at91_register_uart(0, 0, 0); | ||
|
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| /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */ | ||
| at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS | ||
| | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD | ||
| | ATMEL_UART_RI); | ||
|
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||
| /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */ | ||
| at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS); | ||
|
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| /* set serial console to ttyS0 (ie, DBGU) */ | ||
| at91_set_serial_console(0); | ||
| } | ||
|
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| static void __init ek_init_irq(void) | ||
| { | ||
| at91sam9260_init_interrupts(NULL); | ||
| } | ||
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|
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| /* | ||
| * USB Host port | ||
| */ | ||
| static struct at91_usbh_data __initdata ek_usbh_data = { | ||
| .ports = 2, | ||
| }; | ||
|
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||
| /* | ||
| * USB Device port | ||
| */ | ||
| static struct at91_udc_data __initdata ek_udc_data = { | ||
| .vbus_pin = AT91_PIN_PC5, | ||
| .pullup_pin = 0, /* pull-up driven by UDC */ | ||
| }; | ||
|
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|
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| /* | ||
| * SPI devices. | ||
| */ | ||
| static struct spi_board_info ek_spi_devices[] = { | ||
| #if !defined(CONFIG_MMC_AT91) | ||
| { /* DataFlash chip */ | ||
| .modalias = "mtd_dataflash", | ||
| .chip_select = 1, | ||
| .max_speed_hz = 15 * 1000 * 1000, | ||
| .bus_num = 0, | ||
| }, | ||
| #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 | ||
| #endif | ||
| }; | ||
|
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|
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| /* | ||
| * MACB Ethernet device | ||
| */ | ||
| static struct at91_eth_data __initdata ek_macb_data = { | ||
| .phy_irq_pin = AT91_PIN_PA7, | ||
| .is_rmii = 1, | ||
| }; | ||
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| /* | ||
| * NAND flash | ||
| */ | ||
| static struct mtd_partition __initdata ek_nand_partition[] = { | ||
| { | ||
| .name = "Bootstrap", | ||
| .offset = 0, | ||
| .size = 4 * 1024 * 1024, | ||
| }, | ||
| { | ||
| .name = "Partition 1", | ||
| .offset = 4 * 1024 * 1024, | ||
| .size = 60 * 1024 * 1024, | ||
| }, | ||
| { | ||
| .name = "Partition 2", | ||
| .offset = 64 * 1024 * 1024, | ||
| .size = MTDPART_SIZ_FULL, | ||
| }, | ||
| }; | ||
|
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| static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) | ||
| { | ||
| *num_partitions = ARRAY_SIZE(ek_nand_partition); | ||
| return ek_nand_partition; | ||
| } | ||
|
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| /* det_pin is not connected */ | ||
| static struct at91_nand_data __initdata ek_nand_data = { | ||
| .ale = 21, | ||
| .cle = 22, | ||
| .rdy_pin = AT91_PIN_PC13, | ||
| .enable_pin = AT91_PIN_PC14, | ||
| .partition_info = nand_partitions, | ||
| #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16) | ||
| .bus_width_16 = 1, | ||
| #else | ||
| .bus_width_16 = 0, | ||
| #endif | ||
| }; | ||
|
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| /* | ||
| * MCI (SD/MMC) | ||
| * det_pin, wp_pin and vcc_pin are not connected | ||
| */ | ||
| static struct at91_mmc_data __initdata ek_mmc_data = { | ||
| .slot_b = 1, | ||
| .wire4 = 1, | ||
| }; | ||
|
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|
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| /* | ||
| * LEDs | ||
| */ | ||
| static struct gpio_led ek_leds[] = { | ||
| { /* "bottom" led, green, userled1 to be defined */ | ||
| .name = "ds5", | ||
| .gpio = AT91_PIN_PA6, | ||
| .active_low = 1, | ||
| .default_trigger = "none", | ||
| }, | ||
| { /* "power" led, yellow */ | ||
| .name = "ds1", | ||
| .gpio = AT91_PIN_PA9, | ||
| .default_trigger = "heartbeat", | ||
| } | ||
| }; | ||
|
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| static void __init ek_board_init(void) | ||
| { | ||
| /* Serial */ | ||
| at91_add_device_serial(); | ||
| /* USB Host */ | ||
| at91_add_device_usbh(&ek_usbh_data); | ||
| /* USB Device */ | ||
| at91_add_device_udc(&ek_udc_data); | ||
| /* SPI */ | ||
| at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); | ||
| /* NAND */ | ||
| at91_add_device_nand(&ek_nand_data); | ||
| /* Ethernet */ | ||
| at91_add_device_eth(&ek_macb_data); | ||
| /* MMC */ | ||
| at91_add_device_mmc(0, &ek_mmc_data); | ||
| /* I2C */ | ||
| at91_add_device_i2c(NULL, 0); | ||
| /* LEDs */ | ||
| at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); | ||
| } | ||
|
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| MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK") | ||
| /* Maintainer: Atmel */ | ||
| .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 = ek_map_io, | ||
| .init_irq = ek_init_irq, | ||
| .init_machine = ek_board_init, | ||
| MACHINE_END |
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