8436b41080
cam60_spi_devices is passed to at91_add_device_spi which calls spi_register_board_info. The latter makes a copy of it, so living in .init.data is OK. This fixes the following warning in cam60_defconfig: WARNING: vmlinux.o(.data+0x2a00): Section mismatch in reference from the variable cam60_spi_devices to the (unknown reference) .init.data:(unknown) The variable cam60_spi_devices references the (unknown reference) __initdata (unknown) If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
208 lines
4.6 KiB
C
208 lines
4.6 KiB
C
/*
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* KwikByte CAM60 (KB9260)
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*
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* based on board-sam9260ek.c
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* Copyright (C) 2005 SAN People
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* Copyright (C) 2006 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/flash.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 "sam9_smc.h"
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#include "generic.h"
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static void __init cam60_map_io(void)
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{
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/* Initialize processor: 10 MHz crystal */
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at91sam9260_initialize(10000000);
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/* DBGU on ttyS0. (Rx & Tx only) */
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at91_register_uart(0, 0, 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 cam60_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
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*/
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static struct at91_usbh_data __initdata cam60_usbh_data = {
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.ports = 1,
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};
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/*
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* SPI devices.
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*/
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#if defined(CONFIG_MTD_DATAFLASH)
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static struct mtd_partition __initdata cam60_spi_partitions[] = {
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{
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.name = "BOOT1",
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.offset = 0,
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.size = 4 * 1056,
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},
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{
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.name = "BOOT2",
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.offset = MTDPART_OFS_NXTBLK,
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.size = 256 * 1056,
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},
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{
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.name = "kernel",
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.offset = MTDPART_OFS_NXTBLK,
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.size = 2222 * 1056,
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},
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{
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.name = "file system",
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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 flash_platform_data cam60_spi_flash_platform_data __initdata = {
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.name = "spi_flash",
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.parts = cam60_spi_partitions,
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.nr_parts = ARRAY_SIZE(cam60_spi_partitions)
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};
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#endif
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static struct spi_board_info cam60_spi_devices[] __initdata = {
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#if defined(CONFIG_MTD_DATAFLASH)
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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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.platform_data = &cam60_spi_flash_platform_data
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},
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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 __initdata at91_eth_data cam60_macb_data = {
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.phy_irq_pin = AT91_PIN_PB5,
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.is_rmii = 0,
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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 cam60_nand_partition[] = {
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{
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.name = "nand_fs",
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.offset = 0,
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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(cam60_nand_partition);
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return cam60_nand_partition;
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}
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static struct atmel_nand_data __initdata cam60_nand_data = {
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.ale = 21,
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.cle = 22,
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// .det_pin = ... not there
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.rdy_pin = AT91_PIN_PA9,
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.enable_pin = AT91_PIN_PA7,
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.partition_info = nand_partitions,
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};
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static struct sam9_smc_config __initdata cam60_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 | 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 cam60_add_device_nand(void)
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{
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/* configure chip-select 3 (NAND) */
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sam9_smc_configure(3, &cam60_nand_smc_config);
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at91_add_device_nand(&cam60_nand_data);
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}
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static void __init cam60_board_init(void)
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{
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/* Serial */
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at91_add_device_serial();
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/* SPI */
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at91_add_device_spi(cam60_spi_devices, ARRAY_SIZE(cam60_spi_devices));
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/* Ethernet */
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at91_add_device_eth(&cam60_macb_data);
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/* USB Host */
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/* enable USB power supply circuit */
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at91_set_gpio_output(AT91_PIN_PB18, 1);
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at91_add_device_usbh(&cam60_usbh_data);
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/* NAND */
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cam60_add_device_nand();
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}
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MACHINE_START(CAM60, "KwikByte CAM60")
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/* Maintainer: KwikByte */
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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 = cam60_map_io,
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.init_irq = cam60_init_irq,
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.init_machine = cam60_board_init,
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MACHINE_END
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