71b149b3f7
There is no need to pinmux the UART so early in the kernel. Move it to the board init. This will also allow to finally move the gpio driver to platform device/driver. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
384 lines
8.7 KiB
C
384 lines
8.7 KiB
C
/*
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* linux/arch/arm/mach-at91/board-neocore926.c
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*
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* Copyright (C) 2005 SAN People
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* Copyright (C) 2007 Atmel Corporation
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* Copyright (C) 2008 ADENEO.
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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/gpio.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/spi/ads7846.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 <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/sizes.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/at91sam9_smc.h>
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#include "sam9_smc.h"
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#include "generic.h"
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static void __init neocore926_init_early(void)
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{
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/* Initialize processor: 20 MHz crystal */
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at91_initialize(20000000);
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}
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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 neocore926_usbh_data = {
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.ports = 2,
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.vbus_pin = { AT91_PIN_PA24, AT91_PIN_PA21 },
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.overcurrent_pin= {-EINVAL, -EINVAL},
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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 neocore926_udc_data = {
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.vbus_pin = AT91_PIN_PA25,
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.pullup_pin = -EINVAL, /* pull-up driven by UDC */
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};
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/*
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* ADS7846 Touchscreen
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*/
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#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
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static int ads7843_pendown_state(void)
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{
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return !at91_get_gpio_value(AT91_PIN_PA15); /* Touchscreen PENIRQ */
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}
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static struct ads7846_platform_data ads_info = {
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.model = 7843,
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.x_min = 150,
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.x_max = 3830,
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.y_min = 190,
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.y_max = 3830,
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.vref_delay_usecs = 100,
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.x_plate_ohms = 450,
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.y_plate_ohms = 250,
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.pressure_max = 15000,
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.debounce_max = 1,
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.debounce_rep = 0,
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.debounce_tol = (~0),
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.get_pendown_state = ads7843_pendown_state,
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};
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static void __init neocore926_add_device_ts(void)
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{
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at91_set_B_periph(AT91_PIN_PA15, 1); /* External IRQ1, with pullup */
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at91_set_gpio_input(AT91_PIN_PC13, 1); /* Touchscreen BUSY signal */
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}
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#else
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static void __init neocore926_add_device_ts(void) {}
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#endif
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/*
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* SPI devices.
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*/
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static struct spi_board_info neocore926_spi_devices[] = {
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#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
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{ /* DataFlash card */
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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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#endif
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#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
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{
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.modalias = "ads7846",
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.chip_select = 1,
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.max_speed_hz = 125000 * 16,
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.bus_num = 0,
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.platform_data = &ads_info,
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.irq = AT91SAM9263_ID_IRQ1,
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},
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#endif
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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 neocore926_mmc_data = {
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.wire4 = 1,
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.det_pin = AT91_PIN_PE18,
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.wp_pin = AT91_PIN_PE19,
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.vcc_pin = -EINVAL,
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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 macb_platform_data __initdata neocore926_macb_data = {
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.phy_irq_pin = AT91_PIN_PE31,
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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 neocore926_nand_partition[] = {
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{
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.name = "Linux Kernel", /* "Partition 1", */
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.offset = 0,
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.size = SZ_8M,
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},
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{
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.name = "Filesystem", /* "Partition 2", */
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.offset = MTDPART_OFS_NXTBLK,
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.size = SZ_32M,
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},
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{
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.name = "Free", /* "Partition 3", */
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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 atmel_nand_data __initdata neocore926_nand_data = {
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.ale = 21,
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.cle = 22,
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.rdy_pin = AT91_PIN_PB19,
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.rdy_pin_active_low = 1,
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.enable_pin = AT91_PIN_PD15,
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.ecc_mode = NAND_ECC_SOFT,
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.parts = neocore926_nand_partition,
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.num_parts = ARRAY_SIZE(neocore926_nand_partition),
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.det_pin = -EINVAL,
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};
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static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
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.ncs_read_setup = 0,
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.nrd_setup = 1,
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.ncs_write_setup = 0,
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.nwe_setup = 1,
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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 = 6,
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.write_cycle = 6,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
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.tdf_cycles = 2,
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};
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static void __init neocore926_add_device_nand(void)
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{
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/* configure chip-select 3 (NAND) */
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sam9_smc_configure(0, 3, &neocore926_nand_smc_config);
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at91_add_device_nand(&neocore926_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 = "TX09D50VM1CCA @ 60",
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.refresh = 60,
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.xres = 240, .yres = 320,
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.pixclock = KHZ2PICOS(5000),
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.left_margin = 1, .right_margin = 33,
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.upper_margin = 1, .lower_margin = 0,
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.hsync_len = 5, .vsync_len = 1,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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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 = "HIT",
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.monitor = "TX09D70VM1CCA",
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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 = 64000,
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.vfmin = 50,
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.vfmax = 150,
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};
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#define AT91SAM9263_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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static void at91_lcdc_power_control(int on)
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{
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at91_set_gpio_value(AT91_PIN_PA30, on);
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}
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/* Driver datas */
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static struct atmel_lcdfb_info __initdata neocore926_lcdc_data = {
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.lcdcon_is_backlight = true,
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.default_bpp = 16,
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.default_dmacon = ATMEL_LCDC_DMAEN,
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.default_lcdcon2 = AT91SAM9263_DEFAULT_LCDCON2,
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.default_monspecs = &at91fb_default_monspecs,
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.atmel_lcdfb_power_control = at91_lcdc_power_control,
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.guard_time = 1,
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.lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB555,
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};
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#else
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static struct atmel_lcdfb_info __initdata neocore926_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 neocore926_buttons[] = {
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{ /* BP1, "leftclic" */
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.code = BTN_LEFT,
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.gpio = AT91_PIN_PC5,
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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_PC4,
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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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};
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static struct gpio_keys_platform_data neocore926_button_data = {
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.buttons = neocore926_buttons,
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.nbuttons = ARRAY_SIZE(neocore926_buttons),
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};
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static struct platform_device neocore926_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 = &neocore926_button_data,
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}
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};
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static void __init neocore926_add_device_buttons(void)
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{
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at91_set_GPIO_periph(AT91_PIN_PC5, 0); /* left button */
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at91_set_deglitch(AT91_PIN_PC5, 1);
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at91_set_GPIO_periph(AT91_PIN_PC4, 0); /* right button */
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at91_set_deglitch(AT91_PIN_PC4, 1);
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platform_device_register(&neocore926_button_device);
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}
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#else
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static void __init neocore926_add_device_buttons(void) {}
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#endif
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/*
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* AC97
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*/
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static struct ac97c_platform_data neocore926_ac97_data = {
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.reset_pin = AT91_PIN_PA13,
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};
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static void __init neocore926_board_init(void)
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{
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/* Serial */
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/* DBGU on ttyS0. (Rx & Tx only) */
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at91_register_uart(0, 0, 0);
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/* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
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at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
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at91_add_device_serial();
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/* USB Host */
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at91_add_device_usbh(&neocore926_usbh_data);
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/* USB Device */
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at91_add_device_udc(&neocore926_udc_data);
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/* SPI */
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at91_set_gpio_output(AT91_PIN_PE20, 1); /* select spi0 clock */
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at91_add_device_spi(neocore926_spi_devices, ARRAY_SIZE(neocore926_spi_devices));
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/* Touchscreen */
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neocore926_add_device_ts();
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/* MMC */
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at91_add_device_mmc(1, &neocore926_mmc_data);
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/* Ethernet */
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at91_add_device_eth(&neocore926_macb_data);
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/* NAND */
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neocore926_add_device_nand();
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/* I2C */
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at91_add_device_i2c(NULL, 0);
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/* LCD Controller */
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at91_add_device_lcdc(&neocore926_lcdc_data);
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/* Push Buttons */
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neocore926_add_device_buttons();
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/* AC97 */
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at91_add_device_ac97(&neocore926_ac97_data);
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}
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MACHINE_START(NEOCORE926, "ADENEO NEOCORE 926")
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/* Maintainer: ADENEO */
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.timer = &at91sam926x_timer,
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.map_io = at91_map_io,
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.init_early = neocore926_init_early,
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.init_irq = at91_init_irq_default,
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.init_machine = neocore926_board_init,
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MACHINE_END
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