7c38cf021b
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>
276 lines
7.1 KiB
C
276 lines
7.1 KiB
C
/*
|
|
* 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
|