forked from Minki/linux
76b2ab76a4
no board configure it as 'n' and it's an issue to merge all defconfigs in one On AT91SAM926x boards both types of NAND flash can be present (8 and 16 bit data bus width). so will pass it via system_rev Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
421 lines
9.5 KiB
C
421 lines
9.5 KiB
C
/*
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* Copyright (C) 2005 SAN People
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* Copyright (C) 2008 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/spi/at73c213.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/clk.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/fixed.h>
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#include <linux/regulator/consumer.h>
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#include <mach/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 <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/system_rev.h>
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#include "sam9_smc.h"
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#include "generic.h"
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/*
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* board revision encoding
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* bit 0:
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* 0 => 1 sd/mmc slot
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* 1 => 2 sd/mmc slots connectors (board from revision C)
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*/
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#define HAVE_2MMC (1 << 0)
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static int inline ek_have_2mmc(void)
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{
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return machine_is_at91sam9g20ek_2mmc() || (system_rev & HAVE_2MMC);
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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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at91sam9260_initialize(18432000);
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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, CTS, RTS, DTR, DSR, DCD, RI) */
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at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
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| ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
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| 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 | 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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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 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_PC5,
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.pullup_pin = 0, /* pull-up driven by UDC */
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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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#if !(defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_AT91))
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{ /* DataFlash chip */
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.modalias = "mtd_dataflash",
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.chip_select = 1,
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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 */
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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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#endif
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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_PA7,
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.is_rmii = 1,
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};
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static void __init ek_add_device_macb(void)
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{
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if (ek_have_2mmc())
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ek_macb_data.phy_irq_pin = AT91_PIN_PB0;
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at91_add_device_eth(&ek_macb_data);
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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 = "Bootstrap",
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.offset = 0,
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.size = 4 * SZ_1M,
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},
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{
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.name = "Partition 1",
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.offset = MTDPART_OFS_NXTBLK,
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.size = 60 * SZ_1M,
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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_PC13,
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.enable_pin = AT91_PIN_PC14,
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.partition_info = nand_partitions,
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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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ek_nand_data.bus_width_16 = !board_have_nand_8bit();
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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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* MCI (SD/MMC)
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* wp_pin and vcc_pin are not connected
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*/
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#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
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static struct mci_platform_data __initdata ek_mmc_data = {
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.slot[1] = {
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.bus_width = 4,
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.detect_pin = AT91_PIN_PC9,
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},
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};
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#else
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static struct at91_mmc_data __initdata ek_mmc_data = {
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.slot_b = 1, /* Only one slot so use slot B */
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.wire4 = 1,
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.det_pin = AT91_PIN_PC9,
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};
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#endif
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static void __init ek_add_device_mmc(void)
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{
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#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
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if (ek_have_2mmc()) {
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ek_mmc_data.slot[0].bus_width = 4;
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ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2;
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}
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at91_add_device_mci(0, &ek_mmc_data);
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#else
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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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/*
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* LEDs
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*/
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static struct gpio_led ek_leds[] = {
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{ /* "bottom" led, green, userled1 to be defined */
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.name = "ds5",
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.gpio = AT91_PIN_PA6,
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.active_low = 1,
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.default_trigger = "none",
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},
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{ /* "power" led, yellow */
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.name = "ds1",
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.gpio = AT91_PIN_PA9,
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.default_trigger = "heartbeat",
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}
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};
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static void __init ek_add_device_gpio_leds(void)
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{
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if (ek_have_2mmc()) {
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ek_leds[0].gpio = AT91_PIN_PB8;
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ek_leds[1].gpio = AT91_PIN_PB9;
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}
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at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
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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 ek_buttons[] = {
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{
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.gpio = AT91_PIN_PA30,
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.code = BTN_3,
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.desc = "Button 3",
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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_PA31,
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.code = BTN_4,
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.desc = "Button 4",
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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 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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at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */
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at91_set_deglitch(AT91_PIN_PA30, 1);
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at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */
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at91_set_deglitch(AT91_PIN_PA31, 1);
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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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#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
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static struct regulator_consumer_supply ek_audio_consumer_supplies[] = {
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REGULATOR_SUPPLY("AVDD", "0-001b"),
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REGULATOR_SUPPLY("HPVDD", "0-001b"),
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REGULATOR_SUPPLY("DBVDD", "0-001b"),
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REGULATOR_SUPPLY("DCVDD", "0-001b"),
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};
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static struct regulator_init_data ek_avdd_reg_init_data = {
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.constraints = {
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.name = "3V3",
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.valid_ops_mask = REGULATOR_CHANGE_STATUS,
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},
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.consumer_supplies = ek_audio_consumer_supplies,
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.num_consumer_supplies = ARRAY_SIZE(ek_audio_consumer_supplies),
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};
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static struct fixed_voltage_config ek_vdd_pdata = {
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.supply_name = "board-3V3",
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.microvolts = 3300000,
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.gpio = -EINVAL,
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.enabled_at_boot = 0,
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.init_data = &ek_avdd_reg_init_data,
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};
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static struct platform_device ek_voltage_regulator = {
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.name = "reg-fixed-voltage",
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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_vdd_pdata,
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},
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};
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static void __init ek_add_regulators(void)
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{
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platform_device_register(&ek_voltage_regulator);
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}
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#else
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static void __init ek_add_regulators(void) {}
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#endif
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static struct i2c_board_info __initdata ek_i2c_devices[] = {
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{
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I2C_BOARD_INFO("24c512", 0x50)
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},
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{
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I2C_BOARD_INFO("wm8731", 0x1b)
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},
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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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/* SPI */
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at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
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/* NAND */
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ek_add_device_nand();
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/* Ethernet */
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ek_add_device_macb();
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/* Regulators */
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ek_add_regulators();
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/* MMC */
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ek_add_device_mmc();
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/* I2C */
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at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
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/* LEDs */
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ek_add_device_gpio_leds();
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/* Push Buttons */
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ek_add_device_buttons();
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/* PCK0 provides MCLK to the WM8731 */
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at91_set_B_periph(AT91_PIN_PC1, 0);
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/* SSC (for WM8731) */
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at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
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}
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MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
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/* Maintainer: Atmel */
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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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MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
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/* Maintainer: Atmel */
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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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