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linux/arch/arm/mach-omap1/board-osk.c
Tony Lindgren 7c38cf021b [ARM] 2890/1: OMAP 1/4: Update omap1 specific files, take 2 
Patch from Tony Lindgren

This patch syncs the mainline kernel with linux-omap tree.
The highlights of the patch are:
- Convert more drivers to register resources in board-*.c to take
  advantage of the driver model by David Brownell and Ladislav Michl
- Use set_irq_type() for GPIO interrupts instead of
  omap_set_gpio_edge_ctrl() by David Brownell
- Add minimal support for handling optional add-on boards, such as
  OSK Mistral board with LCD and keypad, by David Brownell
- Minimal support for loading functions to SRAM by Tony Lindgren
- Wake up from serial port by muxing RX lines temporarily into GPIO
  interrupts by Tony Lindgren
- 32KHz sched_clock by Tony Lindgren and Juha Yrjola

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-08 23:07:38 +01:00

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/*
* linux/arch/arm/mach-omap1/board-osk.c
*
* Board specific init for OMAP5912 OSK
*
* Written by Dirk Behme <dirk.behme@de.bosch.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>
#include <asm/arch/gpio.h>
#include <asm/arch/usb.h>
#include <asm/arch/mux.h>
#include <asm/arch/tc.h>
#include <asm/arch/common.h>
static int __initdata osk_serial_ports[OMAP_MAX_NR_PORTS] = {1, 0, 0};
static struct mtd_partition osk_partitions[] = {
/* bootloader (U-Boot, etc) in first sector */
{
.name = "bootloader",
.offset = 0,
.size = SZ_128K,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
/* bootloader params in the next sector */
{
.name = "params",
.offset = MTDPART_OFS_APPEND,
.size = SZ_128K,
.mask_flags = 0,
}, {
.name = "kernel",
.offset = MTDPART_OFS_APPEND,
.size = SZ_2M,
.mask_flags = 0
}, {
.name = "filesystem",
.offset = MTDPART_OFS_APPEND,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0
}
};
static struct flash_platform_data osk_flash_data = {
.map_name = "cfi_probe",
.width = 2,
.parts = osk_partitions,
.nr_parts = ARRAY_SIZE(osk_partitions),
};
static struct resource osk_flash_resource = {
/* this is on CS3, wherever it's mapped */
.flags = IORESOURCE_MEM,
};
static struct platform_device osk5912_flash_device = {
.name = "omapflash",
.id = 0,
.dev = {
.platform_data = &osk_flash_data,
},
.num_resources = 1,
.resource = &osk_flash_resource,
};
static struct resource osk5912_smc91x_resources[] = {
[0] = {
.start = OMAP_OSK_ETHR_START, /* Physical */
.end = OMAP_OSK_ETHR_START + 0xf,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = OMAP_GPIO_IRQ(0),
.end = OMAP_GPIO_IRQ(0),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device osk5912_smc91x_device = {
.name = "smc91x",
.id = -1,
.num_resources = ARRAY_SIZE(osk5912_smc91x_resources),
.resource = osk5912_smc91x_resources,
};
static struct resource osk5912_cf_resources[] = {
[0] = {
.start = OMAP_GPIO_IRQ(62),
.end = OMAP_GPIO_IRQ(62),
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device osk5912_cf_device = {
.name = "omap_cf",
.id = -1,
.dev = {
.platform_data = (void *) 2 /* CS2 */,
},
.num_resources = ARRAY_SIZE(osk5912_cf_resources),
.resource = osk5912_cf_resources,
};
static struct platform_device osk5912_mcbsp1_device = {
.name = "omap_mcbsp",
.id = 1,
};
static struct platform_device *osk5912_devices[] __initdata = {
&osk5912_flash_device,
&osk5912_smc91x_device,
&osk5912_cf_device,
&osk5912_mcbsp1_device,
};
static void __init osk_init_smc91x(void)
{
if ((omap_request_gpio(0)) < 0) {
printk("Error requesting gpio 0 for smc91x irq\n");
return;
}
/* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */
EMIFS_CCS(1) |= 0x2;
}
static void __init osk_init_cf(void)
{
omap_cfg_reg(M7_1610_GPIO62);
if ((omap_request_gpio(62)) < 0) {
printk("Error requesting gpio 62 for CF irq\n");
return;
}
/* the CF I/O IRQ is really active-low */
set_irq_type(OMAP_GPIO_IRQ(62), IRQT_FALLING);
}
static void __init osk_init_irq(void)
{
omap_init_irq();
omap_gpio_init();
osk_init_smc91x();
osk_init_cf();
}
static struct omap_usb_config osk_usb_config __initdata = {
/* has usb host connector (A) ... for development it can also
* be used, with a NONSTANDARD gender-bending cable/dongle, as
* a peripheral.
*/
#ifdef CONFIG_USB_GADGET_OMAP
.register_dev = 1,
.hmc_mode = 0,
#else
.register_host = 1,
.hmc_mode = 16,
.rwc = 1,
#endif
.pins[0] = 2,
};
static struct omap_board_config_kernel osk_config[] = {
{ OMAP_TAG_USB, &osk_usb_config },
};
#ifdef CONFIG_OMAP_OSK_MISTRAL
#ifdef CONFIG_PM
static irqreturn_t
osk_mistral_wake_interrupt(int irq, void *ignored, struct pt_regs *regs)
{
return IRQ_HANDLED;
}
#endif
static void __init osk_mistral_init(void)
{
/* FIXME here's where to feed in framebuffer, touchpad, and
* keyboard setup ... not in the drivers for those devices!
*
* NOTE: we could actually tell if there's a Mistral board
* attached, e.g. by trying to read something from the ads7846.
* But this is too early for that...
*/
/* the sideways button (SW1) is for use as a "wakeup" button */
omap_cfg_reg(N15_1610_MPUIO2);
if (omap_request_gpio(OMAP_MPUIO(2)) == 0) {
int ret = 0;
omap_set_gpio_direction(OMAP_MPUIO(2), 1);
set_irq_type(OMAP_GPIO_IRQ(OMAP_MPUIO(2)), IRQT_RISING);
#ifdef CONFIG_PM
/* share the IRQ in case someone wants to use the
* button for more than wakeup from system sleep.
*/
ret = request_irq(OMAP_GPIO_IRQ(OMAP_MPUIO(2)),
&osk_mistral_wake_interrupt,
SA_SHIRQ, "mistral_wakeup",
&osk_mistral_wake_interrupt);
if (ret != 0) {
omap_free_gpio(OMAP_MPUIO(2));
printk(KERN_ERR "OSK+Mistral: no wakeup irq, %d?\n",
ret);
} else
enable_irq_wake(OMAP_GPIO_IRQ(OMAP_MPUIO(2)));
#endif
} else
printk(KERN_ERR "OSK+Mistral: wakeup button is awol\n");
}
#else
static void __init osk_mistral_init(void) { }
#endif
static void __init osk_init(void)
{
osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys();
osk_flash_resource.end += SZ_32M - 1;
platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices));
omap_board_config = osk_config;
omap_board_config_size = ARRAY_SIZE(osk_config);
USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
osk_mistral_init();
}
static void __init osk_map_io(void)
{
omap_map_common_io();
omap_serial_init(osk_serial_ports);
}
MACHINE_START(OMAP_OSK, "TI-OSK")
/* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
.phys_ram = 0x10000000,
.phys_io = 0xfff00000,
.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
.boot_params = 0x10000100,
.map_io = osk_map_io,
.init_irq = osk_init_irq,
.init_machine = osk_init,
.timer = &omap_timer,
MACHINE_END
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