Hello Uwe,
thank you for the answer again, but I'm still in troubles...
Here is the code from my mach-imx27ipcam.c regarding camera initialization
and DMESG messages I got. The initialization is almost the same as in
pcm037 as you adviced.
static int mx27ipcam_camera_power(struct device *dev, int on)
{
/* set clock*/
/* set standby pin */
gpio_set_value(CAM_STDBY, !on);
printk("%s: %d\n", __func__, (!(!on)));
return 0;
}
static int mx27ipcam_camera_reset(struct device *dev)
{
gpio_set_value(CAM_RESET, 0);
udelay(100);
gpio_set_value(CAM_RESET, 1);
printk("%s\n", __func__);
return 0;
}
static struct soc_camera_link iclink_mt9d131 = {
.bus_id = 0, /* Must match with the camera ID */
.board_info = &mx27ipcam_i2c_camera[0],
.i2c_adapter_id = 0,
.power = mx27ipcam_camera_power,
.reset = mx27ipcam_camera_reset,
};
static struct platform_device mx27ipcam_mt9d131 = {
.name = "soc-camera-pdrv",
.id = 0,
.dev = {
.platform_data = &iclink_mt9d131,
},
};
static struct platform_device *platform_devices[] __initdata = {
&ipcam_nor_mtd_device,
&mx27ipcam_mt9d131,
};
static struct mx2_camera_platform_data mx27ipcam_camera = {
.flags = 0,
.clk = 100000,
};
static phys_addr_t mx2_camera_base __initdata;
#define MX2_CAMERA_BUF_SIZE SZ_4M
static int __init mx27ipcam_camera_init(void) {
int dma, ret = -ENOMEM;
struct platform_device *pdev;
printk("MX2 camera initialization.\n");
pdev = imx27_add_mx2_camera(&mx27ipcam_camera);
if (IS_ERR(pdev)) {
printk("pdev error\n");
return PTR_ERR(pdev);
}
dma = dma_declare_coherent_memory(&pdev->dev,
mx2_camera_base, mx2_camera_base,
MX2_CAMERA_BUF_SIZE,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
if (!(dma & DMA_MEMORY_MAP))
goto err;
ret = platform_device_add(pdev);
if (ret) {
printk("platform_device_add error\n");
err:
platform_device_put(pdev);
}
return ret;
}
static void __init mx27ipcam_init(void)
{
...
imx27_add_imx_i2c(0, &mx27ipcam_i2c1_data);
mx27ipcam_camera_init();
...
}
...
static void __init imx27ipcam_reserve(void)
{
/* reserve 4 MiB for mx2-camera */
mx2_camera_base = memblock_alloc(MX2_CAMERA_BUF_SIZE,
MX2_CAMERA_BUF_SIZE);
memblock_free(mx2_camera_base, MX2_CAMERA_BUF_SIZE);
memblock_remove(mx2_camera_base, MX2_CAMERA_BUF_SIZE);
}
MACHINE_START(IMX27IPCAM, "Freescale IMX27IPCAM")
/* maintainer: Freescale Semiconductor, Inc. */
.boot_params = MX27_PHYS_OFFSET + 0x100,
.reserve = imx27ipcam_reserve,
.map_io = mx27_map_io,
.init_early = imx27_init_early,
.init_irq = mx27_init_irq,
.timer = &mx27ipcam_timer,
.init_machine = mx27ipcam_init,
MACHINE_END
MX2 camera initialization.
------------[ cut here ]------------
WARNING: at /home/honza/_dev/kernel/linux-2.6.39.y/kernel/resource.c:491
__insert_resource+0x13c/0
x148()
Modules linked in:
[<c00329e0>] (unwind_backtrace+0x0/0xf0) from [<c0042b00>]
(warn_slowpath_common+0x4c/0x64)
[<c0042b00>] (warn_slowpath_common+0x4c/0x64) from [<c0042b34>]
(warn_slowpath_null+0x1c/0x24)
[<c0042b34>] (warn_slowpath_null+0x1c/0x24) from [<c004960c>]
(__insert_resource+0x13c/0x148)
[<c004960c>] (__insert_resource+0x13c/0x148) from [<c0049e6c>]
(insert_resource_conflict+0x20/0x54
)
[<c0049e6c>] (insert_resource_conflict+0x20/0x54) from [<c0049ea8>]
(insert_resource+0x8/0x14)
[<c0049ea8>] (insert_resource+0x8/0x14) from [<c01bf11c>]
(platform_device_add+0x70/0x238)
[<c01bf11c>] (platform_device_add+0x70/0x238) from [<c000bc54>]
(mx27ipcam_init+0xc0/0x120)
[<c000bc54>] (mx27ipcam_init+0xc0/0x120) from [<c0009558>]
(customize_machine+0x1c/0x28)
[<c0009558>] (customize_machine+0x1c/0x28) from [<c002248c>]
(do_one_initcall+0x30/0x16c)
[<c002248c>] (do_one_initcall+0x30/0x16c) from [<c000891c>]
(kernel_init+0x90/0x13c)
[<c000891c>] (kernel_init+0x90/0x13c) from [<c002dfc0>]
(kernel_thread_exit+0x0/0x8)
---[ end trace 1b75b31a2719ed1c ]---
mx2-camera.0: failed to claim resource 0
platform_device_add error
I have also another question if you are able to answer it. I would like to
have some kind of kernel debugging working (JTAG or KGDB). We own j-link
probe from segger, but their gdbserver cannot attach running application.
It resets the board and I'm not able to boot linux again with probe
connected. According to this I have tried also KGDB, but it does not work
either. I have found this link
http://www.imxdev.org/wiki/index.php?title=Mxuart_patch - it seems that
polling routines are still not implemented in current driver. Is that true?
with best regards
Jan
Dne Fri, 29 Jul 2011 13:57:32 +0200 Uwe Kleine-König
<u.kleine-koenig@xxxxxxxxxxxxxx> napsal(a):
Hello Jan,
On Fri, Jul 29, 2011 at 12:14:09PM +0200, Jan Pohanka wrote:
which repository should I search
90026c8c823bff54172eab33a5e7fcecfd3df635 in? I have not found it in
git.pengutronix.de/git/imx/linux-2.6.git nor in vanilla sources.
Seems my copy'n'paste foo isn't optimal. Commit
dca7c0b4293a06d1ed9387e729a4882896abccc2 is the relevant, it's in
vanilla.
http://git.kernel.org/linus/dca7c0b4293a06d1ed9387e729a4882896abccc2
Best regards
Uwe
--
Tato zpráva byla vytvořena převratným poštovním klientem Opery:
http://www.opera.com/mail/
Dne Fri, 29 Jul 2011 13:57:32 +0200 Uwe Kleine-König
<u.kleine-koenig@xxxxxxxxxxxxxx> napsal(a):
Hello Jan,
On Fri, Jul 29, 2011 at 12:14:09PM +0200, Jan Pohanka wrote:
which repository should I search
90026c8c823bff54172eab33a5e7fcecfd3df635 in? I have not found it in
git.pengutronix.de/git/imx/linux-2.6.git nor in vanilla sources.
Seems my copy'n'paste foo isn't optimal. Commit
dca7c0b4293a06d1ed9387e729a4882896abccc2 is the relevant, it's in
vanilla.
http://git.kernel.org/linus/dca7c0b4293a06d1ed9387e729a4882896abccc2
Best regards
Uwe
--
Tato zpráva byla vytvořena převratným poštovním klientem Opery:
http://www.opera.com/mail/
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