K2HK: GPIO pin as interrupt source

/*
 * Based on the pps-ktimer.c from:
 * Copyright (C) 2005-2006   Rodolfo Giometti <giometti@linux.it>
 *
 * pps-atvtimer.c -- atv irq kernel timer client
 *
 * Copyright (C) 2010        AppearTV AS
 *
 *   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 program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   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/module.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/time.h>
#include <linux/timer.h>
#include <linux/pps_kernel.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>

/*
 * Global variables
 */


#define PPS_TIMER_DEFAULT       16
static unsigned int pps_atvirq = PPS_TIMER_DEFAULT;

static unsigned int pps_virq;
static struct pps_device *pps;

/*
 * irq routine
 */

static irqreturn_t pps_atvirq_handler(int irq, void *parm)
{
        struct pps_event_time ts;

	/* First of all we get the time stamp... */
	ktime_get_ts(&ts);

	pps_event(pps, &ts, PPS_CAPTUREASSERT, NULL);

	printk("PPS event at %lu\n", jiffies);

	return IRQ_HANDLED;
}

/*
 * The echo function
 */

static void pps_atvtimer_echo(struct pps_device *pps, int event, void *data)
{
        dev_info(pps->dev, "echo %s %s\n",
		event & PPS_CAPTUREASSERT ? "assert" : "",
		event & PPS_CAPTURECLEAR ? "clear" : "");
}

/*
 * The PPS info struct
 */

static struct pps_source_info keystone_pps_timer_info = {
	.name		= "ppstimer",
	.path		= "",
	.mode		= PPS_CAPTUREASSERT | PPS_OFFSETASSERT |
			  PPS_ECHOASSERT |
			  PPS_CANWAIT | PPS_TSFMT_TSPEC,
	.echo		= pps_atvtimer_echo,
	.owner		= THIS_MODULE,
};

/*
 * Module staff
 */

static void __exit pps_atvtimer_exit(void)
{
	pps_unregister_source(pps);
    free_irq(pps_virq, NULL);
    gpio_free(pps_atvirq);
	dev_info(pps->dev, "atvtimer PPS source unregistered\n");
}

static int __init pps_atvtimer_init(void)
{
	int ret;
#if 1
	ret = gpio_request(pps_atvirq, "pps_atvtimer");
	if (ret) {
		pr_warning("pps_atvtimer: failed to request GPIO %u\n", pps_atvirq);
		return -EINVAL;
	}

	ret = gpio_direction_input(pps_atvirq);
	if (ret) {
		pr_warning("failed to set pin direction\n");
		return -EINVAL;
	}
#endif
	/*	pps_virq = irq_create_mapping(NULL, pps_atvirq);*/
	pps_virq = gpio_to_irq(pps_atvirq);
	if (pps_virq == NO_IRQ) {
	        printk(KERN_ERR "cannot create irq mapping for hw irq: %d\n", pps_atvirq);
		return -EINVAL;
	}

    ret = request_irq(pps_virq, pps_atvirq_handler, IRQF_TRIGGER_FALLING, 
			  "gpio_16_pps_atvtimer", NULL);
	if (ret) {
		printk(KERN_ERR "failed to register handler for virq: %d\n", pps_virq);
		return ret;
	}
    
	pps = pps_register_source(&keystone_pps_timer_info,
				PPS_CAPTUREASSERT | PPS_OFFSETASSERT);
	if (pps == NULL) {
		printk(KERN_ERR "cannot register atvtimer source\n");
		return -ENOMEM;
	}

	dev_info(pps->dev, "atvtimer PPS source registered\n");

	return 0;
}

module_init(pps_atvtimer_init);
module_exit(pps_atvtimer_exit);

MODULE_AUTHOR("AppearTV AS");
MODULE_DESCRIPTION("PPS source by using IRQ pin 16 on Keystone2");
MODULE_LICENSE("GPL");

/*
 * Sample driver for making GPIO to interrupt
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.
 *
 * AUTHOR : Titusrathinaraj Stalin
 * EMAIL  : x0213399@ti.com
 *	
 */



/* Include linux kernel header files */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/cdev.h>
#include <asm/uaccess.h>
#include <linux/device.h>
#include <asm/gpio.h>
#include <linux/interrupt.h>
#include <asm/irq.h>
#include <linux/sched.h>
#include <linux/irq.h>
#include <linux/delay.h>

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Titus S");
MODULE_DESCRIPTION("GPIO interrupt sample driver");

/* OMAPL138_LCDK : S3 switch */

#define GPIO_INT 37

/* GPIO No 141 -> GPIO8[12] : OMAPL138_LCDK : J15[16] */

//#define GPIO_INT 165 //input key for SDI OMAPL138
//#define GPIO_INT1 166 //output led1 for SDI OMAPL138
//#define GPIO_INT2 167 //output led2 for SDI OMAPL138

#define gpio_int "gpio_int"

/* local functions */
static int gpio_irq_open (struct inode *inode, struct file *filp);
static int gpio_irq_release (struct inode *inode, struct file *filp);
static int gpio_irq_fasync(int fd, struct file *filp, int on);

static int major;
static struct class *class_gpio_int;
static struct device *dev_gpio_int;


static struct fasync_struct *gpio_irq_async_queue;

/* declare file operation structure */
static struct file_operations gpio_irq_fops = {
	.owner = THIS_MODULE,
	.open  = gpio_irq_open,
	.release = gpio_irq_release,
	.fasync	= gpio_irq_fasync,
};

/*Interrupt Handler */
static irqreturn_t gpio_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
	printk("\n GPIO interrupt raised; IRQ No : %d\n",irq);
	kill_fasync(&gpio_irq_async_queue, SIGIO, POLL_IN);
	return IRQ_HANDLED;
}

/***************************************************************************
 * Function             - gpio_request_irq
 * Functionality        - Registers Handlers to the IRQ's of GPIO's by request_irq
 * Input Params - 
 * Return Value - None
 * Note                 - None
 ****************************************************************************/
void gpio_request_irq(int irq_num)
{
	int status = 0;

//	irq_set_irq_type(irq_num,IRQ_TYPE_EDGE_BOTH);

	status = request_irq(irq_num, gpio_interrupt,0,"gpio_int", NULL);

/* Need to use 'IRQ_TYPE_EDGE_FALLING' since the switch S3 is pulled high and it should raise interrupt when we pressed switch (ie falling edge) */

	irq_set_irq_type(irq_num,IRQ_TYPE_EDGE_FALLING);

	printk(KERN_WARNING "gpio_request_irq %d status %d\n",
			   irq_num, status);

	if (status == -EINVAL) {
		printk("<1> EINVAL \n");
		} 
	else if (status == -ENOMEM) {
		printk("<1> ENOMEM ");
		} 		
		
	if (status < 0) {
		printk("<1> gpio_request_irq : Failed to Register IRQ %d  \n",
		       irq_num);
		printk("<1> gpio_request_irq : return status is %d  \n",
		       status);
	}

}

/***************************************************************************
 * Function             - gpio_unrequest_irq
 * Functionality        - Free Handlers o the IRQ's of GPIO's
 * Input Params - 
 * Return Value - None
 * Note                 - None
 ****************************************************************************/
void gpio_unrequest_irq(int irq_num)
{
	free_irq(irq_num, NULL);
//	gpio_free(GPIO_INT1);
//	gpio_free(GPIO_INT2);
	printk("<1> gpio_unrequest_irq :  Freeing IRQ %d  \n", irq_num);

}
/****************************************************************************/


static int gpio_irq_fasync(int fd, struct file *filp, int on)
{
	int temp;
	temp = fasync_helper(fd, filp, on, &gpio_irq_async_queue);
	if (fd != -1)
		kill_fasync(&gpio_irq_async_queue, SIGIO, POLL_IN);
	return(temp);
}

void gpio_init(void)
{
	unsigned int status,tmp;

	status = gpio_request(GPIO_INT, "gpio_ctrl");
	printk(KERN_ALERT "gpio_ctrl : GPIO NO: %d Status %d\n",GPIO_INT,status);
//	status = gpio_request(GPIO_INT1, "gpio_ctrl");
//	printk(KERN_ALERT "gpio_ctrl : GPIO NO: %d Status %d\n",GPIO_INT1,status);
//	status = gpio_request(GPIO_INT2, "gpio_ctrl");
//	printk(KERN_ALERT "gpio_ctrl : GPIO NO: %d Status %d\n",GPIO_INT2,status);

//	gpio_direction_output(GPIO_INT1, 0);
//	gpio_direction_output(GPIO_INT2, 0);
	gpio_direction_input(GPIO_INT);


	tmp = gpio_to_irq(GPIO_INT);
	printk(KERN_ALERT "IRQ is %d\n",tmp);
	gpio_request_irq(tmp);
}

/******************************************************************************
 * gpio_irq_open - do nothing 
 *****************************************************************************/
static int gpio_irq_open (struct inode *inode, struct file *filp)
{
    return 0;
}    

/******************************************************************************
 * gpio_irq_release - do nothing 
 *****************************************************************************/
static int gpio_irq_release (struct inode *inode, struct file *filp)
{
	if (filp->f_flags & FASYNC) {
		gpio_irq_fasync (-1, filp, 0);
	}
	return 0;
} 

/*****************************************************************************
 * initialise user gpio module
 ****************************************************************************/
static int gpio_irq_init(void)
{
	static int status;

	void *ptr_err;
	if ((major = register_chrdev(0, gpio_int, &gpio_irq_fops)) < 0)
		return major;

	class_gpio_int = class_create(THIS_MODULE, gpio_int);
	if (IS_ERR(ptr_err = class_gpio_int))
		goto err2;

	dev_gpio_int = device_create(class_gpio_int, NULL, MKDEV(major, 0), NULL, gpio_int);
	if (IS_ERR(ptr_err = dev_gpio_int))
		goto err;

    	gpio_init();

	printk(KERN_ALERT "GPIO IRQ device is inserted sucessfully\n");

    	return 0;

err:
	class_destroy(class_gpio_int);
err2:
	unregister_chrdev(major, gpio_int);
	return PTR_ERR(ptr_err);

}

/*****************************************************************************
 * cleanup user gpio module
 ****************************************************************************/
static void gpio_irq_exit(void)
{

//	gpio_direction_output(GPIO_INT1,0);
//	gpio_direction_output(GPIO_INT2,0);

mdelay(500);
//printk("Im done...\n");
//	gpio_direction_output(GPIO_INT1,1);
//	gpio_direction_output(GPIO_INT2,1);

//mdelay(1000);
//printk("Im down...\n");

	gpio_unrequest_irq(gpio_to_irq(GPIO_INT));

	device_destroy(class_gpio_int, MKDEV(major, 0));
	class_destroy(class_gpio_int);
	printk(KERN_ALERT "GPIO IRQ device is ejected sucessfully\n");
}

module_init(gpio_irq_init);
module_exit(gpio_irq_exit);

U-Boot SPL 2013.01 (Jul 01 2014 - 16:19:36)
SF: Detected N25Q128A with page size 64 KiB, total 16 MiB


U-Boot 2013.01 (Jul 01 2014 - 16:19:36)

I2C:   ready
Detected SO-DIMM [SQR-SD3T-2G1333SED]
DRAM:  2 GiB
NAND:  512 MiB
Net:   TCI6638_EMAC, TCI6638_EMAC1
Hit any key to stop autoboot:  0 
TCI6638 EVM # 
TCI6638 EVM # 
TCI6638 EVM # 
TCI6638 EVM # boot
Using TCI6638_EMAC device
TFTP from server 172.29.75.21; our IP address is 10.100.1.102; sending through gateway 10.100.1.1
Filename 'k2h_mcsdk_3_01/uImage-k2hk-evm.dtb'.
Load address: 0x87000000
Loading: ##########
         1.2 MiB/s
done
Bytes transferred = 50892 (c6cc hex)
Using TCI6638_EMAC device
TFTP from server 172.29.75.21; our IP address is 10.100.1.102; sending through gateway 10.100.1.1
Filename 'k2h_mcsdk_3_01/uImage-keystone-evm.bin'.
Load address: 0x88000000
Loading: #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #################################################################
         #########################################
         1.3 MiB/s
done
Bytes transferred = 3866448 (3aff50 hex)
Using TCI6638_EMAC device
TFTP from server 172.29.75.21; our IP address is 10.100.1.102; sending through gateway 10.100.1.1
Filename 'k2h_mcsdk_3_01/skern-k2hk-evm.bin'.
Load address: 0xc5f0000
Loading: #########
         1.3 MiB/s
done
Bytes transferred = 45056 (b000 hex)
## installed monitor, freq [204800000], status 0
## Booting kernel from Legacy Image at 88000000 ...
   Image Name:   Linux-3.10.10
   Created:      2014-08-05  17:01:10 UTC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    3866384 Bytes = 3.7 MiB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
## Flattened Device Tree blob at 87000000
   Booting using the fdt blob at 0x87000000
   Loading Kernel Image ... OK
OK
   Using Device Tree in place at 87000000, end 8700f6cb

Starting kernel ...

[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 3.10.10 (gtbldadm@ubuntu-12) (gcc version 4.7.3 20130226 (prerelease) (crosstool-NG linaro-1.13.1-4.
7-2013.03-20130313 - Linaro GCC 2013.03) ) #1 SMP Tue Aug 5 13:00:56 EDT 2014
[    0.000000] CPU: ARMv7 Processor [412fc0f4] revision 4 (ARMv7), cr=30c7387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache
[    0.000000] Machine: KeyStone2, model: Texas Instruments Keystone 2 SoC
[    0.000000] cma: CMA: reserved 16 MiB at ae800000
[    0.000000] Memory policy: ECC disabled, Data cache writealloc
[    0.000000] On node 0 totalpages: 524288
[    0.000000] free_area_init_node: node 0, pgdat c0766100, node_mem_map c079c000
[    0.000000]   DMA zone: 1520 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 194560 pages, LIFO batch:31
[    0.000000]   HighMem zone: 2576 pages used for memmap
[    0.000000]   HighMem zone: 329728 pages, LIFO batch:31
[    0.000000] PERCPU: Embedded 8 pages/cpu @c17bf000 s11840 r8192 d12736 u32768
[    0.000000] pcpu-alloc: s11840 r8192 d12736 u32768 alloc=8*4096
[    0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 522768
[    0.000000] Kernel command line: earlyprintk debug console=ttyS0,115200n8 ip=dhcp mem=2G rootwait=1 rootfstype=       root=/de
v/nfs nfsroot=172.29.75.21:/usr/local/ks2_fs,v3,tcp rw
[    0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes)
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
[    0.000000] Memory: 2048MB = 2048MB total
[    0.000000] Memory: 2055428k/2055428k available, 41724k reserved, 1318912K highmem
[    0.000000] Virtual kernel memory layout:
[    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
[    0.000000]     fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
[    0.000000]     vmalloc : 0xf0000000 - 0xff000000   ( 240 MB)
[    0.000000]     lowmem  : 0xc0000000 - 0xef800000   ( 760 MB)
[    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
[    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
[    0.000000]       .text : 0xc0008000 - 0xc06d6b40   (6971 kB)
[    0.000000]       .init : 0xc06d7000 - 0xc0727e40   ( 324 kB)
[    0.000000]       .data : 0xc0728000 - 0xc076cb88   ( 275 kB)
[    0.000000]        .bss : 0xc076cb88 - 0xc079b674   ( 187 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[    0.000000] Hierarchical RCU implementation.
[    0.000000] NR_IRQS:16 nr_irqs:16 16
[    0.000000] ipc irq: irqchip registered, range 512-539
[    0.000000] Main PLL clk (1228800000 Hz), parent (122880000 Hz),postdiv = 2, mult = 19, prediv = 0
[    0.000000] Generic PLL clk (1200000000 Hz), parent (125000000 Hz),postdiv = 1, mult = 47, prediv = 4
[    0.000000] Generic PLL clk (983040000 Hz), parent (122880000 Hz),postdiv = 2, mult = 15, prediv = 0
[    0.000000] Generic PLL clk (333333333 Hz), parent (100000000 Hz),postdiv = 6, mult = 19, prediv = 0
[    0.000000] Generic PLL clk (333333333 Hz), parent (100000000 Hz),postdiv = 6, mult = 19, prediv = 0
[    0.000000] Architected local timer running at 204.80MHz (phys).
[    0.000000] Switching to timer-based delay loop
[    0.000000] sched_clock: ARM arch timer >56 bits at 204800kHz, resolution 625/128ns
[    0.000000] keystone timer clock @204800000 MHz
[    0.000000] sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 4294967286ms
[    0.000000] Console: colour dummy device 80x30
[    7.721373] Calibrating delay loop (skipped), value calculated using timer frequency.. 409.60 BogoMIPS (lpj=2048000)
[    7.721382] pid_max: default: 4096 minimum: 301
[    7.721500] Mount-cache hash table entries: 512
[    7.729988] CPU: Testing write buffer coherency: ok
[    7.730168] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    7.730179] Setting up static identity map for 0xc04d85d8 - 0xc04d860c
[    7.777587] CPU1: Booted secondary processor
[    7.777614] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    7.824802] CPU2: Booted secondary processor
[    7.824828] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    7.872011] CPU3: Booted secondary processor
[    7.872037] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    7.872153] Brought up 4 CPUs
[    7.872170] SMP: Total of 4 processors activated (1638.40 BogoMIPS).
[    7.872175] CPU: All CPU(s) started in SVC mode.
[    7.872619] devtmpfs: initialized
[    7.885268] NET: Registered protocol family 16
[    7.886225] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    7.895181] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    7.895188] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    7.903425] bio: create slab <bio-0> at 0
[    7.903716] keystone-pcie: keystone_pcie_rc_init - start
[    7.903781] keystone2_pcie_serdes_setup
[    7.905854] keystone2_pcie_serdes_setup done, en_link_train = 1
[    7.905883] keystone-pcie: MEM 0x0000000050000000..0x000000005fffffff -> 0x0000000050000000 
[    7.905892] keystone-pcie: IO 0x0000000024000000..0x0000000024003fff -> 0x0000000000000000
[    7.905924] keystone-pcie: pcie - number of legacy irqs = 4
[    7.905968] keystone-pcie: pcie - number of MSI host irqs = 8, msi_irqs = 32
[    8.011360] keystone-pcie: Doing PCI Setup...Done
[    8.011365] keystone-pcie: Starting PCI scan...
[    8.011479] PCI host bridge to bus 0000:00
[    8.011490] pci_bus 0000:00: root bus resource [mem 0x50000000-0x5fffffff]
[    8.011497] pci_bus 0000:00: root bus resource [io  0x0000-0x3fff]
[    8.011505] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[    8.011548] PCI: bus0: Fast back to back transfers enabled
[    8.011556] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated to 00
[    8.011563] keystone-pcie: Ending PCI scan...
[    8.011570] keystone-pcie: keystone_pcie_rc_init - end
[    8.011754] vgaarb: loaded
[    8.012060] SCSI subsystem initialized
[    8.012401] usbcore: registered new interface driver usbfs
[    8.012479] usbcore: registered new interface driver hub
[    8.012569] usbcore: registered new device driver usb
[    8.012625] nop_usb_xceiv ssusb3_phy.8: Can't get phy clock: -2
[    8.013626] pps_core: LinuxPPS API ver. 1 registered
[    8.013632] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    8.013691] PTP clock support registered
[    8.013799] keystone-hwqueue hwqueue.6: qmgr start queue 0, number of queues 8192
[    8.013875] keystone-hwqueue hwqueue.6: added qmgr start queue 0, num of queues 8192, reg_peek f0040000, reg_status f0006000, 
reg_config f0008000, reg_region f000a000, reg_push f0080000, reg_pop f00c0000
[    8.013884] keystone-hwqueue hwqueue.6: qmgr start queue 8192, number of queues 8192
[    8.013956] keystone-hwqueue hwqueue.6: added qmgr start queue 8192, num of queues 8192, reg_peek f0100000, reg_status f000c40
0, reg_config f000e000, reg_region f001a000, reg_push f0140000, reg_pop f0180000
[    8.014749] keystone-hwqueue hwqueue.6: qos: sched port @8096, drop sched @8000
[    8.015741] keystone-hwqueue hwqueue.6: qos: sched port @6496, drop sched @6400
[    8.016712] keystone-hwqueue hwqueue.6: added pool pool-rio: 128 descriptors of size 256
[    8.016722] keystone-hwqueue hwqueue.6: added pool pool-xge: 1024 descriptors of size 128
[    8.016731] keystone-hwqueue hwqueue.6: added pool pool-crypto: 1024 descriptors of size 128
[    8.016740] keystone-hwqueue hwqueue.6: added pool pool-net: 11264 descriptors of size 128
[    8.016748] keystone-hwqueue hwqueue.6: added pool pool-udma: 1920 descriptors of size 256
[    8.019617] keystone-hwqueue hwqueue.6: registered queues 0-16383
[    8.019944] keystone-hwqueue hwqueue.6: qos version 0x2000107, magic valid
[    8.020426] keystone-hwqueue hwqueue.6: qos version 0x2000107, magic valid
[    8.031281] keystone-pktdma 2a08000.pktdma: registered 32 logical channels, flows 32, tx chans: 32, rx chans: 32, loopback
[    8.034886] keystone-pktdma 2004000.pktdma: registered 33 logical channels, flows 32, tx chans: 9, rx chans: 24
[    8.035397] keystone-pktdma 2fa1000.pktdma: registered 4 logical channels, flows 32, tx chans: 16, rx chans: 16
[    8.035538] Switching to clocksource arch_sys_counter
[    8.053702] NET: Registered protocol family 2
[    8.054062] TCP established hash table entries: 8192 (order: 4, 65536 bytes)
[    8.054175] TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
[    8.054283] TCP: Hash tables configured (established 8192 bind 8192)
[    8.054329] TCP: reno registered
[    8.054338] UDP hash table entries: 512 (order: 2, 16384 bytes)
[    8.054362] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
[    8.054541] NET: Registered protocol family 1
[    8.054691] RPC: Registered named UNIX socket transport module.
[    8.054697] RPC: Registered udp transport module.
[    8.054702] RPC: Registered tcp transport module.
[    8.054706] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    8.054713] PCI: CLS 0 bytes, default 64
[    8.055061] hw perfevents: enabled with ARMv7 Cortex-A15 PMU driver, 7 counters available
[    8.126132] bounce pool size: 64 pages
[    8.133323] Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
[    8.133485] NTFS driver 2.1.30 [Flags: R/O].
[    8.133708] jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
[    8.133996] msgmni has been set to 1470
[    8.134868] NET: Registered protocol family 38
[    8.135047] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
[    8.135054] io scheduler noop registered
[    8.135059] io scheduler deadline registered
[    8.135172] io scheduler cfq registered (default)
[    8.137827] keystone-udma udma0.7: registered udma device udma0
[    8.189666] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[    8.191078] 2530c00.serial: ttyS0 at MMIO 0x2530c00 (irq = 309) is a 16550A
[    9.081351] console [ttyS0] enabled
[    9.085409] 2531000.serial: ttyS1 at MMIO 0x2531000 (irq = 312) is a 16550A
[    9.095209] loop: module loaded
[    9.098484] at24 0-0050: 131072 byte 24c1024 EEPROM, writable, 1 bytes/write
[    9.106230] Generic platform RAM MTD, (c) 2004 Simtec Electronics
[    9.113369] ONFI param page 0 valid
[    9.116855] ONFI flash detected
[    9.119986] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xac (Micron MT29F4G08ABBDAHC), 512MiB, page size: 2048, OOB size: 64
[    9.131597] Bad block table found at page 262080, version 0x01
[    9.137811] Bad block table found at page 262016, version 0x01
[    9.143885] 3 ofpart partitions found on MTD device 30000000.nand
[    9.149969] Creating 3 MTD partitions on "30000000.nand":
[    9.155355] 0x000000000000-0x000000100000 : "u-boot"
[    9.160932] 0x000000100000-0x000000180000 : "params"
[    9.166455] 0x000000180000-0x000020000000 : "ubifs"
[    9.172043] davinci_nand 30000000.nand: controller rev. 2.5
[    9.178196] spi_davinci 21000400.spi: master is unqueued, this is deprecated
[    9.185488] m25p80 spi32766.0: found n25q128a11, expected n25q128
[    9.191577] m25p80 spi32766.0: n25q128a11 (16384 Kbytes)
[    9.196888] 2 ofpart partitions found on MTD device spi32766.0
[    9.202705] Creating 2 MTD partitions on "spi32766.0":
[    9.207836] 0x000000000000-0x000000080000 : "u-boot-spl"
[    9.213719] 0x000000080000-0x000001000000 : "test"
[    9.219394] spi_davinci 21000400.spi: Controller at 0xf007a400
[    9.225509] spi_davinci 21000600.spi: master is unqueued, this is deprecated
[    9.232552] spi_davinci 21000600.spi: Controller at 0xf007c600
[    9.238666] spi_davinci 21000800.spi: master is unqueued, this is deprecated
[    9.245708] spi_davinci 21000800.spi: Controller at 0xf007e800
[    9.252398] tun: Universal TUN/TAP device driver, 1.6
[    9.257441] tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[    9.264025] keystone-netcp 2090000.netcp: missing num_serdes parameter
[    9.270548] keystone-netcp 2090000.netcp: missing serdes_lanes parameter
[    9.277240] keystone-netcp 2090000.netcp: missing serdes_ref_clk parameter
[    9.284100] keystone-netcp 2090000.netcp: missing serdes_baud_rate parameter
[    9.291139] keystone-netcp 2090000.netcp: missing serdes_rate_mode parameter
[    9.298177] keystone-netcp 2090000.netcp: missing serdes_phy_intf parameter
[    9.305123] keystone-netcp 2090000.netcp: missing serdes_loopback parameter
[    9.312087] keystone-netcp 2090000.netcp: Missing cpts_clock_mult property in the DT.
[    9.319906] keystone-netcp 2090000.netcp: Missing cpts_clock_shift property in the DT.
[    9.327811] keystone-netcp 2090000.netcp: Missing cpts_clock_div property in the DT.
[    9.336382] keystone-netcp 2090000.netcp: Created interface "eth0"
[    9.342553] keystone-netcp 2090000.netcp: dma_chan_name nettx0
[    9.349141] keystone-netcp 2090000.netcp: Created interface "eth1"
[    9.355311] keystone-netcp 2090000.netcp: dma_chan_name nettx1
[    9.361894] keystone-netcp 2090000.netcp: Created interface "eth2"
[    9.368072] keystone-netcp 2090000.netcp: dma_chan_name nettx2
[    9.374650] keystone-netcp 2090000.netcp: Created interface "eth3"
[    9.380829] keystone-netcp 2090000.netcp: dma_chan_name nettx3
[    9.386833] keystone-netcp 2090000.netcp: could not find interface 2 node in device tree
[    9.394908] keystone-netcp 2090000.netcp: Attach of module keystone-qos declined with -19
[    9.403077] keystone-netcp 2090000.netcp: could not find interface 3 node in device tree
[    9.411157] keystone-netcp 2090000.netcp: Attach of module keystone-qos declined with -19
[    9.419335] keystone-netcp 2090000.netcp: Attach of module keystone-sa declined with -19
[    9.427415] keystone-netcp 2090000.netcp: Attach of module keystone-sa declined with -19
[    9.436195] nop_usb_xceiv nop_usb_xceiv.0: Can't get phy clock: -2
[    9.442462] nop_usb_xceiv nop_usb_xceiv.1: Can't get phy clock: -2
[    9.448666] keystone-dwc3 2690000.dwc: usbss revision 47914300
[    9.454506] keystone-dwc3 2690000.dwc: mapped irq 425 to virq 608
[    9.662223] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    9.667712] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 1
[    9.675994] xhci-hcd xhci-hcd.0.auto: irq 608, io mem 0x02690000
[    9.682025] usb usb1: default language 0x0409
[    9.686420] usb usb1: udev 1, busnum 1, minor = 0
[    9.691113] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[    9.697898] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    9.705105] usb usb1: Product: xHCI Host Controller
[    9.709979] usb usb1: Manufacturer: Linux 3.10.10 xhci-hcd
[    9.715450] usb usb1: SerialNumber: xhci-hcd.0.auto
[    9.720572] usb usb1: usb_probe_device
[    9.724311] usb usb1: configuration #1 chosen from 1 choice
[    9.729889] xHCI xhci_add_endpoint called for root hub
[    9.735014] xHCI xhci_check_bandwidth called for root hub
[    9.740427] usb usb1: adding 1-0:1.0 (config #1, interface 0)
[    9.746287] hub 1-0:1.0: usb_probe_interface
[    9.750547] hub 1-0:1.0: usb_probe_interface - got id
[    9.755600] hub 1-0:1.0: USB hub found
[    9.759346] hub 1-0:1.0: 1 port detected
[    9.763257] hub 1-0:1.0: standalone hub
[    9.767086] hub 1-0:1.0: individual port power switching
[    9.772384] hub 1-0:1.0: individual port over-current protection
[    9.778380] hub 1-0:1.0: Single TT
[    9.781770] hub 1-0:1.0: TT requires at most 8 FS bit times (666 ns)
[    9.788114] hub 1-0:1.0: power on to power good time: 20ms
[    9.793594] hub 1-0:1.0: local power source is good
[    9.798496] hub 1-0:1.0: enabling power on all ports
[    9.803537] xhci-hcd xhci-hcd.0.auto: xHCI Host Controller
[    9.809017] xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 2
[    9.816693] usb usb2: skipped 1 descriptor after endpoint
[    9.822082] usb usb2: default language 0x0409
[    9.826446] usb usb2: udev 1, busnum 2, minor = 128
[    9.831311] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003
[    9.838089] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    9.845296] usb usb2: Product: xHCI Host Controller
[    9.850164] usb usb2: Manufacturer: Linux 3.10.10 xhci-hcd
[    9.855640] usb usb2: SerialNumber: xhci-hcd.0.auto
[    9.860735] usb usb2: usb_probe_device
[    9.864473] usb usb2: configuration #1 chosen from 1 choice
[    9.870049] xHCI xhci_add_endpoint called for root hub
[    9.875173] xHCI xhci_check_bandwidth called for root hub
[    9.880582] usb usb2: adding 2-0:1.0 (config #1, interface 0)
[    9.886431] hub 2-0:1.0: usb_probe_interface
[    9.890690] hub 2-0:1.0: usb_probe_interface - got id
[    9.895743] hub 2-0:1.0: USB hub found
[    9.899487] hub 2-0:1.0: 1 port detected
[    9.903398] hub 2-0:1.0: standalone hub
[    9.907238] hub 2-0:1.0: individual port power switching
[    9.912536] hub 2-0:1.0: individual port over-current protection
[    9.918544] hub 2-0:1.0: TT requires at most 8 FS bit times (666 ns)
[    9.924882] hub 2-0:1.0: power on to power good time: 20ms
[    9.930374] hub 2-0:1.0: local power source is good
[    9.935269] hub 2-0:1.0: enabling power on all ports
[    9.940361] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0000
[    9.945862] hub 1-0:1.0: hub_suspend
[    9.945971] usbcore: registered new interface driver usb-storage
[    9.955422] usb usb1: bus auto-suspend, wakeup 1
[    9.955809] mousedev: PS/2 mouse device common for all mice
[    9.956010] i2c /dev entries driver
[    9.956613] watchdog 22f0080.wdt: heartbeat 60 sec
[    9.968802] keystone-crypto 20c0000.crypto: crypto accelerator enabled
[    9.969117] usbcore: registered new interface driver usbhid
[    9.969118] usbhid: USB HID core driver
[    9.969440]  remoteproc0: 2620040.dsp0 is available
[    9.969443]  remoteproc0: Note: remoteproc is still under development and considered experimental.
[    9.969445]  remoteproc0: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[    9.969470]  remoteproc0: no firmware found
[    9.969585] rproc-user 2620040.dsp0: registered misc device dsp0
[    9.969808]  remoteproc1: 2620044.dsp1 is available
[    9.969810]  remoteproc1: Note: remoteproc is still under development and considered experimental.
[    9.969812]  remoteproc1: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[    9.969834]  remoteproc1: no firmware found
[    9.969957] rproc-user 2620044.dsp1: registered misc device dsp1
[    9.970170]  remoteproc2: 2620048.dsp2 is available
[    9.970172]  remoteproc2: Note: remoteproc is still under development and considered experimental.
[    9.970174]  remoteproc2: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[    9.970205]  remoteproc2: no firmware found
[    9.970321] rproc-user 2620048.dsp2: registered misc device dsp2
[    9.970536]  remoteproc3: 262004c.dsp3 is available
[    9.970538]  remoteproc3: Note: remoteproc is still under development and considered experimental.
[    9.970540]  remoteproc3: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[    9.970561]  remoteproc3: no firmware found
[    9.970676] rproc-user 262004c.dsp3: registered misc device dsp3
[    9.970888]  remoteproc4: 2620050.dsp4 is available
[    9.970890]  remoteproc4: Note: remoteproc is still under development and considered experimental.
[    9.970892]  remoteproc4: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[    9.970914]  remoteproc4: no firmware found
[    9.971032] rproc-user 2620050.dsp4: registered misc device dsp4
[    9.971249]  remoteproc5: 2620054.dsp5 is available
[    9.971251]  remoteproc5: Note: remoteproc is still under development and considered experimental.
[    9.971253]  remoteproc5: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[    9.971274]  remoteproc5: no firmware found
[    9.971394] rproc-user 2620054.dsp5: registered misc device dsp5
[    9.971608]  remoteproc6: 2620058.dsp6 is available
[    9.971610]  remoteproc6: Note: remoteproc is still under development and considered experimental.
[    9.971612]  remoteproc6: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[    9.971634]  remoteproc6: no firmware found
[    9.971757] rproc-user 2620058.dsp6: registered misc device dsp6
[    9.971971]  remoteproc7: 262005c.dsp7 is available
[    9.971974]  remoteproc7: Note: remoteproc is still under development and considered experimental.
[    9.971976]  remoteproc7: THE BINARY FORMAT IS NOT YET FINALIZED, and backward compatibility isn't yet guaranteed.
[    9.971997]  remoteproc7: no firmware found
[    9.972117] rproc-user 262005c.dsp7: registered misc device dsp7
[    9.972139] rproc-user dspmem.9: kick gpio
[    9.972256] rproc-user dspmem.9: registered misc device dspmem
[    9.972550] oprofile: using arm/armv7-ca15
[    9.972666] ipip: IPv4 over IPv4 tunneling driver
[    9.973046] gre: GRE over IPv4 demultiplexor driver
[    9.973049] ip_gre: GRE over IPv4 tunneling driver
[    9.973810] TCP: cubic registered
[    9.973812] Initializing XFRM netlink socket
[    9.974256] NET: Registered protocol family 10
[    9.975338] NET: Registered protocol family 17
[    9.975352] NET: Registered protocol family 15
[    9.975403] Bridge firewalling registered
[    9.975410] 8021q: 802.1Q VLAN Support v1.8
[    9.977166] sctp: Hash tables configured (established 65536 bind 65536)
[    9.977297] NET: Registered protocol family 41
[   10.332181] VFP support v0.3: [   10.332231] hub 2-0:1.0: state 7 ports 1 chg 0000 evt 0000
[   10.332252] hub 2-0:1.0: hub_suspend
[   10.332260] usb usb2: bus auto-suspend, wakeup 1
implementor 41 architecture 4 part 30 variant f rev 0
[   10.353472] Registering SWP/SWPB emulation handler
[   10.362777] keystone-netcp 2090000.netcp: initializing cpsw version 1.3 (1) SGMII identification value 0x4ed1
[   10.372826] keystone-netcp 2090000.netcp: Created a cpsw ale engine
[   10.465891] pps pps0: new PPS source ptp0
[   10.469903] cpts rftclk rate(614400000 HZ),mult(5000),shift(10),div(3)
[   10.510823] keystone-netcp 2090000.netcp: Using Packet Accelerator Firmware version 0x03000009
[   10.519430] keystone-netcp 2090000.netcp: pa_clk_rate(163840000 HZ),mult(25000),shift(12)
[   10.806279] net eth0: netcp device eth0 opened
[   10.813004] 8021q: adding VLAN 0 to HW filter on device eth0
[   10.818690] net eth0: adding rx vlan id: 0
[   10.823365] keystone-netcp 2090000.netcp: initializing cpsw version 1.3 (1) SGMII identification value 0x4ed1
[   11.256251] net eth1: netcp device eth1 opened
[   11.261937] 8021q: adding VLAN 0 to HW filter on device eth1
[   11.267611] net eth1: adding rx vlan id: 0
[   11.272291] keystone-netcp 2090000.netcp: initializing cpsw version 1.3 (1) SGMII identification value 0x4ed1
[   11.516237] net eth2: netcp device eth2 opened
[   11.521295] IPv6: ADDRCONF(NETDEV_UP): eth2: link is not ready
[   11.527173] 8021q: adding VLAN 0 to HW filter on device eth2
[   11.532819] net eth2: adding rx vlan id: 0
[   11.537531] keystone-netcp 2090000.netcp: initializing cpsw version 1.3 (1) SGMII identification value 0x4ed1
[   11.786237] net eth3: netcp device eth3 opened
[   11.791296] IPv6: ADDRCONF(NETDEV_UP): eth3: link is not ready
[   11.797176] 8021q: adding VLAN 0 to HW filter on device eth3
[   11.802823] net eth3: adding rx vlan id: 0
[   11.806968] IP-Config: Failed to open gretap0
[   11.825575] Sending DHCP requests ., OK
[   11.905576] IP-Config: Got DHCP answer from 10.100.1.1, my address is 10.100.1.102
[   14.335725] net eth1: removing rx vlan id: 0
[   15.165640] net eth2: removing rx vlan id: 0
[   16.005636] net eth3: removing rx vlan id: 0
[   16.010618] IP-Config: Complete:
[   16.013839]      device=eth0, hwaddr=c4:ed:ba:a9:a3:6b, ipaddr=10.100.1.102, mask=255.255.255.0, gw=10.100.1.1
[   16.023830]      host=10.100.1.102, domain=chennaiodc.lntinfotech.com, nis-domain=(none)
[   16.031915]      bootserver=0.0.0.0, rootserver=172.29.75.21, rootpath=
[   16.038349]      nameserver0=172.29.16.38, nameserver1=172.25.8.25
[   16.051350] VFS: Mounted root (nfs filesystem) on device 0:12.
[   16.057596] devtmpfs: mounted
[   16.060712] Freeing unused kernel memory: 320K (c06d7000 - c0727000)
INIT: version 2.88 booting
Starting udev
[   16.652368] udev[1294]: starting version 164
Starting Bootlog daemon: bootlogd.
NOT configuring network interfaces: / is an NFS mount
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.rp_filter = 1
Sun Nov 24 22:39:00 UTC 2013
INIT: Entering runlevel: 5
Starting system message bus: dbus.
Starting Dropbear SSH server: dropbear.
Starting mpmsrv daemon.
Starting telnet daemon.
#>>>>> LCD 12
IP Address:
10.100.1.102
Starting tiipclad daemon.
Starting network benchmark server: netserver.
Starting syslog-ng:.
Starting thttpd.
Starting Lighttpd Web Server: lighttpd.
2013-11-24 22:39:01: (log.c.166) server started 
* starting FTP Server: vsftpd... done.
***************************************************************
***************************************************************
NOTICE: This file system contains the followin GPLv3 packages:
        binutils-symlinks
        binutils
        gdb
        gdbserver

If you do not wish to distribute GPLv3 components please remove
the above packages prior to distribution.  This can be done using
the opkg remove command.  i.e.:
    opkg remove <package>
Where <package> is the name printed in the list above

NOTE: If the package is a dependency of another package you
      will be notified of the dependent packages.  You should
      use the --force-removal-of-dependent-packages option to
      also remove the dependent packages as well
***************************************************************
***************************************************************
Stopping Bootlog daemon: bootlogd.

 _____                    _____           _         _   
|  _  |___ ___ ___ ___   |  _  |___ ___  |_|___ ___| |_ 
|     |  _| .'| . | . |  |   __|  _| . | | | -_|  _|  _|
|__|__|_| |__,|_  |___|  |__|  |_| |___|_| |___|___|_|  
              |___|                    |___|            

Arago Project http://arago-project.org keystone-evm ttyS0

Arago 2013.04 keystone-evm ttyS0

keystone-evm login: root
root@keystone-evm:~# cd /
root@keystone-evm:/# 
root@keystone-evm:/# insmod gpio_irq_ks2.ko 
[   26.399272] BINTEN = 00000003
[   26.399272] DIR = ffffffff
[   26.399272] OUTDATA =   (null)
[   26.399272] SETDATA =   (null)
[   26.399272] CLRDATA =   (null)
[   26.399272] INDATA = 00000001
[   26.399272] SETRISTRIG =   (null)
[   26.399272] CLRRISTRIG =   (null)
[   26.399272] SETFALTRIG =   (null)
[   26.399272] CLRFALTRIG =   (null)
[   26.430186] gpio_ctrl : GPIO NO: 10 Status 0
[   26.434447] IRQ is 550
[   26.436926] gpio_request_irq 550 status 0
[   26.436928] GPIO IRQ device is inserted sucessfully
root@keystone-evm:/# 2013 Nov 24 22:39:08 keystone-evm [   26.430186] gpio_ctrl : GPIO NO: 10 Status 0
2013 Nov 24 22:39:08 keystone-evm [   26.434447] IRQ is 550
2013 Nov 24 22:39:08 keystone-evm [   26.436928] GPIO IRQ device is inserted sucessfully

root@keystone-evm:/# 
root@keystone-evm:/# 
root@keystone-evm:/# 
root@keystone-evm:/# insmod pps-atvtimer.ko 
[   67.537984] pps pps1: new PPS source ppstimer
[   67.542333] pps pps1: atvtimer PPS source registered
root@keystone-evm:/# 
root@keystone-evm:/# 
root@keystone-evm:/# 
root@keystone-evm:/# [   85.955573] PPS event at 4294945120
[   86.431852] PPS event at 4294945167