789b23bc40
Here are the at91 specific files dedicated to the at91sam9g45 series. They mimic the traditional at91 way of managing chips & boards. The first board that embeds at91sam9g45 chip is the AT91SAM9G45-EKES. In the future, the main board for this 9g45 series will be the AT91SAM9M10G45-EK (I choose this last name for the board file). Simple drivers are enabled in _devices and board- files. Newer peripheral support will be added in future patches. Incuded peripherals support (for now): - USART - SPI - Ethernet - NAND flash - LCD - gpio/joystick/buttons - leds and pwm Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
390 lines
8.2 KiB
C
390 lines
8.2 KiB
C
/*
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* Board-specific setup code for the AT91SAM9M10G45 Evaluation Kit family
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*
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* Covers: * AT91SAM9G45-EKES board
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* * AT91SAM9M10G45-EK board
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*
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* Copyright (C) 2009 Atmel Corporation.
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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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*/
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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/fb.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/leds.h>
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#include <linux/clk.h>
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#include <mach/hardware.h>
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#include <video/atmel_lcdc.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 <mach/hardware.h>
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#include <mach/board.h>
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#include <mach/gpio.h>
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#include <mach/at91sam9_smc.h>
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#include <mach/at91_shdwc.h>
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#include "sam9_smc.h"
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#include "generic.h"
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static void __init ek_map_io(void)
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{
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/* Initialize processor: 12.000 MHz crystal */
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at91sam9g45_initialize(12000000);
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/* DGBU on ttyS0. (Rx & Tx only) */
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at91_register_uart(0, 0, 0);
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/* USART0 not connected on the -EK board */
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/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
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at91_register_uart(AT91SAM9G45_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
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/* set serial console to ttyS0 (ie, DBGU) */
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at91_set_serial_console(0);
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}
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static void __init ek_init_irq(void)
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{
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at91sam9g45_init_interrupts(NULL);
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}
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/*
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* USB HS Host port (common to OHCI & EHCI)
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*/
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static struct at91_usbh_data __initdata ek_usbh_hs_data = {
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.ports = 2,
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.vbus_pin = {AT91_PIN_PD1, AT91_PIN_PD3},
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};
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/*
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* USB HS Device port
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*/
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static struct usba_platform_data __initdata ek_usba_udc_data = {
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.vbus_pin = AT91_PIN_PB19,
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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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};
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/*
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* MACB Ethernet device
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*/
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static struct at91_eth_data __initdata ek_macb_data = {
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.phy_irq_pin = AT91_PIN_PD5,
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.is_rmii = 1,
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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 = SZ_64M,
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},
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{
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.name = "Partition 2",
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.offset = MTDPART_OFS_NXTBLK,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct mtd_partition * __init 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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/* det_pin is not connected */
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static struct atmel_nand_data __initdata ek_nand_data = {
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.ale = 21,
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.cle = 22,
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.rdy_pin = AT91_PIN_PC8,
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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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static struct sam9_smc_config __initdata ek_nand_smc_config = {
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.ncs_read_setup = 0,
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.nrd_setup = 2,
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.ncs_write_setup = 0,
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.nwe_setup = 2,
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.ncs_read_pulse = 4,
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.nrd_pulse = 4,
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.ncs_write_pulse = 4,
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.nwe_pulse = 4,
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.read_cycle = 7,
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.write_cycle = 7,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
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.tdf_cycles = 3,
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};
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static void __init ek_add_device_nand(void)
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{
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/* setup bus-width (8 or 16) */
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if (ek_nand_data.bus_width_16)
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ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
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else
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ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
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/* configure chip-select 3 (NAND) */
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sam9_smc_configure(3, &ek_nand_smc_config);
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at91_add_device_nand(&ek_nand_data);
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}
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/*
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* LCD Controller
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*/
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#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
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static struct fb_videomode at91_tft_vga_modes[] = {
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{
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.name = "LG",
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.refresh = 60,
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.xres = 480, .yres = 272,
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.pixclock = KHZ2PICOS(9000),
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.left_margin = 1, .right_margin = 1,
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.upper_margin = 40, .lower_margin = 1,
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.hsync_len = 45, .vsync_len = 1,
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.sync = 0,
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.vmode = FB_VMODE_NONINTERLACED,
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},
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};
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static struct fb_monspecs at91fb_default_monspecs = {
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.manufacturer = "LG",
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.monitor = "LB043WQ1",
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.modedb = at91_tft_vga_modes,
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.modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
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.hfmin = 15000,
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.hfmax = 17640,
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.vfmin = 57,
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.vfmax = 67,
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};
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#define AT91SAM9G45_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
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| ATMEL_LCDC_DISTYPE_TFT \
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| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
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/* Driver datas */
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static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
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.lcdcon_is_backlight = true,
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.default_bpp = 32,
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.default_dmacon = ATMEL_LCDC_DMAEN,
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.default_lcdcon2 = AT91SAM9G45_DEFAULT_LCDCON2,
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.default_monspecs = &at91fb_default_monspecs,
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.guard_time = 9,
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.lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
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};
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#else
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static struct atmel_lcdfb_info __initdata ek_lcdc_data;
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#endif
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/*
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* GPIO Buttons
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*/
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#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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static struct gpio_keys_button ek_buttons[] = {
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{ /* BP1, "leftclic" */
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.code = BTN_LEFT,
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.gpio = AT91_PIN_PB6,
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.active_low = 1,
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.desc = "left_click",
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.wakeup = 1,
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},
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{ /* BP2, "rightclic" */
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.code = BTN_RIGHT,
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.gpio = AT91_PIN_PB7,
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.active_low = 1,
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.desc = "right_click",
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.wakeup = 1,
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},
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/* BP3, "joystick" */
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{
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.code = KEY_LEFT,
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.gpio = AT91_PIN_PB14,
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.active_low = 1,
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.desc = "Joystick Left",
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},
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{
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.code = KEY_RIGHT,
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.gpio = AT91_PIN_PB15,
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.active_low = 1,
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.desc = "Joystick Right",
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},
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{
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.code = KEY_UP,
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.gpio = AT91_PIN_PB16,
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.active_low = 1,
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.desc = "Joystick Up",
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},
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{
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.code = KEY_DOWN,
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.gpio = AT91_PIN_PB17,
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.active_low = 1,
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.desc = "Joystick Down",
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},
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{
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.code = KEY_ENTER,
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.gpio = AT91_PIN_PB18,
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.active_low = 1,
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.desc = "Joystick Press",
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},
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};
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static struct gpio_keys_platform_data ek_button_data = {
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.buttons = ek_buttons,
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.nbuttons = ARRAY_SIZE(ek_buttons),
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};
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static struct platform_device ek_button_device = {
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.name = "gpio-keys",
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.id = -1,
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.num_resources = 0,
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.dev = {
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.platform_data = &ek_button_data,
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}
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};
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static void __init ek_add_device_buttons(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(ek_buttons); i++) {
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at91_set_GPIO_periph(ek_buttons[i].gpio, 1);
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at91_set_deglitch(ek_buttons[i].gpio, 1);
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}
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platform_device_register(&ek_button_device);
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}
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#else
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static void __init ek_add_device_buttons(void) {}
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#endif
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/*
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* LEDs ... these could all be PWM-driven, for variable brightness
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*/
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static struct gpio_led ek_leds[] = {
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{ /* "top" led, red, powerled */
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.name = "d8",
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.gpio = AT91_PIN_PD30,
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.default_trigger = "heartbeat",
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},
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{ /* "left" led, green, userled2, pwm3 */
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.name = "d6",
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.gpio = AT91_PIN_PD0,
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.active_low = 1,
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.default_trigger = "nand-disk",
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},
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#if !(defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE))
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{ /* "right" led, green, userled1, pwm1 */
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.name = "d7",
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.gpio = AT91_PIN_PD31,
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.active_low = 1,
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.default_trigger = "mmc0",
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},
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#endif
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};
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/*
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* PWM Leds
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*/
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static struct gpio_led ek_pwm_led[] = {
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#if defined(CONFIG_LEDS_ATMEL_PWM) || defined(CONFIG_LEDS_ATMEL_PWM_MODULE)
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{ /* "right" led, green, userled1, pwm1 */
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.name = "d7",
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.gpio = 1, /* is PWM channel number */
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.active_low = 1,
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.default_trigger = "none",
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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 HS Host */
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at91_add_device_usbh_ohci(&ek_usbh_hs_data);
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/* USB HS Device */
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at91_add_device_usba(&ek_usba_udc_data);
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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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/* Ethernet */
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at91_add_device_eth(&ek_macb_data);
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/* NAND */
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ek_add_device_nand();
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/* I2C */
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at91_add_device_i2c(0, NULL, 0);
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/* LCD Controller */
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at91_add_device_lcdc(&ek_lcdc_data);
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/* Push Buttons */
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ek_add_device_buttons();
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/* LEDs */
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at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
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at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
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}
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MACHINE_START(AT91SAM9G45EKES, "Atmel AT91SAM9G45-EKES")
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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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