386 lines
8.5 KiB
C
386 lines
8.5 KiB
C
/*
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* linux/arch/arm/mach-at91/board-cpu9krea.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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* Copyright (C) 2009 Eric Benard - eric@eukrea.com
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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/clk.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/mtd/physmap.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/at91sam9260_matrix.h>
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#include "sam9_smc.h"
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#include "generic.h"
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static void __init cpu9krea_map_io(void)
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{
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/* Initialize processor: 18.432 MHz crystal */
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at91sam9260_initialize(18432000);
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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 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
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at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS |
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ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR |
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ATMEL_UART_DCD | ATMEL_UART_RI);
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/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
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at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS |
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ATMEL_UART_RTS);
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/* USART2 on ttyS3. (Rx, Tx, RTS, CTS) */
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at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS |
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ATMEL_UART_RTS);
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/* USART3 on ttyS4. (Rx, Tx) */
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at91_register_uart(AT91SAM9260_ID_US3, 4, 0);
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/* USART4 on ttyS5. (Rx, Tx) */
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at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
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/* USART5 on ttyS6. (Rx, Tx) */
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at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
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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 cpu9krea_init_irq(void)
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{
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at91sam9260_init_interrupts(NULL);
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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 cpu9krea_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 cpu9krea_udc_data = {
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.vbus_pin = AT91_PIN_PC8,
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.pullup_pin = 0, /* pull-up driven by UDC */
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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 cpu9krea_macb_data = {
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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 atmel_nand_data __initdata cpu9krea_nand_data = {
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.ale = 21,
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.cle = 22,
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.rdy_pin = AT91_PIN_PC13,
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.enable_pin = AT91_PIN_PC14,
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.bus_width_16 = 0,
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};
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#ifdef CONFIG_MACH_CPU9260
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static struct sam9_smc_config __initdata cpu9krea_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 = 3,
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.nrd_pulse = 3,
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.ncs_write_pulse = 3,
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.nwe_pulse = 3,
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.read_cycle = 5,
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.write_cycle = 5,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
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| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
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.tdf_cycles = 2,
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};
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#else
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static struct sam9_smc_config __initdata cpu9krea_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
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| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
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.tdf_cycles = 3,
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};
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#endif
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static void __init cpu9krea_add_device_nand(void)
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{
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sam9_smc_configure(3, &cpu9krea_nand_smc_config);
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at91_add_device_nand(&cpu9krea_nand_data);
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}
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/*
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* NOR flash
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*/
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static struct physmap_flash_data cpuat9260_nor_data = {
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.width = 2,
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};
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#define NOR_BASE AT91_CHIPSELECT_0
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#define NOR_SIZE SZ_64M
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static struct resource nor_flash_resources[] = {
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{
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.start = NOR_BASE,
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.end = NOR_BASE + NOR_SIZE - 1,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct platform_device cpu9krea_nor_flash = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &cpuat9260_nor_data,
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},
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.resource = nor_flash_resources,
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.num_resources = ARRAY_SIZE(nor_flash_resources),
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};
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#ifdef CONFIG_MACH_CPU9260
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static struct sam9_smc_config __initdata cpu9krea_nor_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 = 10,
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.nrd_pulse = 10,
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.ncs_write_pulse = 6,
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.nwe_pulse = 6,
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.read_cycle = 12,
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.write_cycle = 8,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
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| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
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| AT91_SMC_DBW_16,
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.tdf_cycles = 2,
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};
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#else
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static struct sam9_smc_config __initdata cpu9krea_nor_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 = 13,
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.nrd_pulse = 13,
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.ncs_write_pulse = 8,
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.nwe_pulse = 8,
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.read_cycle = 15,
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.write_cycle = 10,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE
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| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
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| AT91_SMC_DBW_16,
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.tdf_cycles = 2,
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};
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#endif
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static __init void cpu9krea_add_device_nor(void)
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{
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unsigned long csa;
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csa = at91_sys_read(AT91_MATRIX_EBICSA);
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at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
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/* configure chip-select 0 (NOR) */
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sam9_smc_configure(0, &cpu9krea_nor_smc_config);
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platform_device_register(&cpu9krea_nor_flash);
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}
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/*
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* LEDs
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*/
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static struct gpio_led cpu9krea_leds[] = {
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{ /* LED1 */
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.name = "LED1",
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.gpio = AT91_PIN_PC11,
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.active_low = 1,
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.default_trigger = "timer",
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},
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{ /* LED2 */
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.name = "LED2",
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.gpio = AT91_PIN_PC12,
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.active_low = 1,
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.default_trigger = "heartbeat",
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},
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{ /* LED3 */
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.name = "LED3",
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.gpio = AT91_PIN_PC7,
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.active_low = 1,
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.default_trigger = "none",
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},
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{ /* LED4 */
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.name = "LED4",
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.gpio = AT91_PIN_PC9,
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.active_low = 1,
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.default_trigger = "none",
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}
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};
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static struct i2c_board_info __initdata cpu9krea_i2c_devices[] = {
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{
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I2C_BOARD_INFO("rtc-ds1307", 0x68),
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.type = "ds1339",
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},
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};
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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 cpu9krea_buttons[] = {
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{
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.gpio = AT91_PIN_PC3,
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.code = BTN_0,
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.desc = "BP1",
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.active_low = 1,
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.wakeup = 1,
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},
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{
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.gpio = AT91_PIN_PB20,
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.code = BTN_1,
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.desc = "BP2",
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.active_low = 1,
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.wakeup = 1,
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}
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};
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static struct gpio_keys_platform_data cpu9krea_button_data = {
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.buttons = cpu9krea_buttons,
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.nbuttons = ARRAY_SIZE(cpu9krea_buttons),
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};
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static struct platform_device cpu9krea_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 = &cpu9krea_button_data,
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}
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};
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static void __init cpu9krea_add_device_buttons(void)
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{
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at91_set_gpio_input(AT91_PIN_PC3, 1); /* BP1 */
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at91_set_deglitch(AT91_PIN_PC3, 1);
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at91_set_gpio_input(AT91_PIN_PB20, 1); /* BP2 */
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at91_set_deglitch(AT91_PIN_PB20, 1);
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platform_device_register(&cpu9krea_button_device);
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}
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#else
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static void __init cpu9krea_add_device_buttons(void)
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{
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}
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#endif
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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 cpu9krea_mmc_data = {
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.slot_b = 0,
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.wire4 = 1,
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.det_pin = AT91_PIN_PA29,
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};
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static void __init cpu9krea_board_init(void)
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{
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/* NOR */
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cpu9krea_add_device_nor();
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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(&cpu9krea_usbh_data);
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/* USB Device */
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at91_add_device_udc(&cpu9krea_udc_data);
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/* NAND */
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cpu9krea_add_device_nand();
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/* Ethernet */
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at91_add_device_eth(&cpu9krea_macb_data);
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/* MMC */
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at91_add_device_mmc(0, &cpu9krea_mmc_data);
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/* I2C */
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at91_add_device_i2c(cpu9krea_i2c_devices,
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ARRAY_SIZE(cpu9krea_i2c_devices));
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/* LEDs */
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at91_gpio_leds(cpu9krea_leds, ARRAY_SIZE(cpu9krea_leds));
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/* Push Buttons */
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cpu9krea_add_device_buttons();
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}
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#ifdef CONFIG_MACH_CPU9260
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MACHINE_START(CPUAT9260, "Eukrea CPU9260")
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#else
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MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
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#endif
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/* Maintainer: Eric Benard - EUKREA Electromatique */
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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 = cpu9krea_map_io,
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.init_irq = cpu9krea_init_irq,
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.init_machine = cpu9krea_board_init,
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MACHINE_END
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