From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vivek Gautam Date: Wed, 25 Feb 2015 19:39:16 +0530 Subject: [U-Boot] [RFC PATCH 3/7] dm: usb: Adjust users of the USB stack to work with driver model In-Reply-To: <1422644697-3735-4-git-send-email-sjg@chromium.org> References: <1422644697-3735-1-git-send-email-sjg@chromium.org> <1422644697-3735-4-git-send-email-sjg@chromium.org> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Sat, Jan 31, 2015 at 12:34 AM, Simon Glass wrote: > While we currently don't have driver model support for block devices and > Ethernet, we can still allow this to work when driver model is used for > USB. > > Signed-off-by: Simon Glass > --- > > common/cmd_usb.c | 74 ++++++++++++++++------ > common/usb.c | 28 +++++---- > common/usb_hub.c | 13 +++- > common/usb_storage.c | 148 ++++++++++++++++++++++++++++---------------- > drivers/usb/eth/usb_ether.c | 46 +++++++++++--- > include/usb.h | 76 +++++++++++++++++++++-- > 6 files changed, 286 insertions(+), 99 deletions(-) > > diff --git a/common/cmd_usb.c b/common/cmd_usb.c > index 27813f0..b824634 100644 > --- a/common/cmd_usb.c > +++ b/common/cmd_usb.c > @@ -10,6 +10,7 @@ > > #include > #include > +#include > #include > #include > #include > @@ -254,16 +255,24 @@ static void usb_display_config(struct usb_device *dev) > > static struct usb_device *usb_find_device(int devnum) > { > - struct usb_device *dev; > +#ifdef CONFIG_DM_USB > + struct udevice *dev; > + > + if (uclass_get_device_by_seq(UCLASS_USB, devnum, &dev)) > + return NULL; > + return dev_get_uclass_priv(dev); > +#else > + struct usb_device *udev; > int d; > > for (d = 0; d < USB_MAX_DEVICE; d++) { > - dev = usb_get_dev_index(d); > - if (dev == NULL) > + udev = usb_get_dev_index(d); > + if (udev == NULL) > return NULL; > - if (dev->devnum == devnum) > - return dev; > + if (udev->devnum == devnum) > + return udev; > } > +#endif > > return NULL; > } > @@ -466,9 +475,8 @@ static void do_usb_start(void) > */ > static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) > { > - > + struct usb_device *udev = NULL; > int i; > - struct usb_device *dev = NULL; > extern char usb_started; > #ifdef CONFIG_USB_STORAGE > block_dev_desc_t *stor_dev; > @@ -508,36 +516,64 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) > } > if (strncmp(argv[1], "tree", 4) == 0) { > puts("USB device tree:\n"); > +#ifdef CONFIG_DM_USB > + struct udevice *dev; > + > + for (uclass_first_device(UCLASS_USB, &dev); > + dev; > + uclass_next_device(&dev)) { > + struct usb_device *udev = dev_get_uclass_priv(dev); > + > + usb_show_tree(udev); > + } > +#else > for (i = 0; i < USB_MAX_DEVICE; i++) { > + struct usb_device *dev; > + > dev = usb_get_dev_index(i); > if (dev == NULL) > break; > if (dev->parent == NULL) > usb_show_tree(dev); > } > +#endif > return 0; > } > if (strncmp(argv[1], "inf", 3) == 0) { > - int d; > if (argc == 2) { > +#ifdef CONFIG_DM_USB > + struct udevice *dev; > + > + for (uclass_first_device(UCLASS_USB, &dev); > + dev; > + uclass_next_device(&dev)) { > + struct usb_device *udev; > + > + udev = dev_get_uclass_priv(dev); > + usb_display_desc(udev); > + usb_display_config(udev); > + } > +#else > + int d; > for (d = 0; d < USB_MAX_DEVICE; d++) { > - dev = usb_get_dev_index(d); > - if (dev == NULL) > + udev = usb_get_dev_index(d); > + if (udev == NULL) > break; > - usb_display_desc(dev); > - usb_display_config(dev); > + usb_display_desc(udev); > + usb_display_config(udev); > } > +#endif > return 0; > } else { > i = simple_strtoul(argv[2], NULL, 10); > printf("config for device %d\n", i); > - dev = usb_find_device(i); > - if (dev == NULL) { > + udev = usb_find_device(i); > + if (udev == NULL) { > printf("*** No device available ***\n"); > return 0; > } else { > - usb_display_desc(dev); > - usb_display_config(dev); > + usb_display_desc(udev); > + usb_display_config(udev); > } > } > return 0; > @@ -546,13 +582,13 @@ static int do_usb(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) > if (argc < 5) > return CMD_RET_USAGE; > i = simple_strtoul(argv[2], NULL, 10); > - dev = usb_find_device(i); > - if (dev == NULL) { > + udev = usb_find_device(i); > + if (udev == NULL) { > printf("Device %d does not exist.\n", i); > return 1; > } > i = simple_strtoul(argv[3], NULL, 10); > - return usb_test(dev, i, argv[4]); > + return usb_test(udev, i, argv[4]); > } > #ifdef CONFIG_USB_STORAGE > if (strncmp(argv[1], "stor", 4) == 0) > diff --git a/common/usb.c b/common/usb.c > index 32e15cd..3ccf8a7 100644 > --- a/common/usb.c > +++ b/common/usb.c > @@ -41,12 +41,13 @@ > > #define USB_BUFSIZ 512 > > -static struct usb_device usb_dev[USB_MAX_DEVICE]; > -static int dev_index; > static int asynch_allowed; > - > char usb_started; /* flag for the started/stopped USB status */ > > +#ifndef CONFIG_DM_USB > +static struct usb_device usb_dev[USB_MAX_DEVICE]; > +static int dev_index; > + > #ifndef CONFIG_USB_MAX_CONTROLLER_COUNT > #define CONFIG_USB_MAX_CONTROLLER_COUNT 1 > #endif > @@ -94,12 +95,12 @@ int usb_init(void) > controllers_initialized++; > start_index = dev_index; > printf("scanning bus %d for devices... ", i); > - dev = usb_alloc_new_device(ctrl); > + ret = usb_alloc_new_device(ctrl, &dev); > /* > * device 0 is always present > * (root hub, so let it analyze) > */ > - if (dev) > + if (!ret) > usb_new_device(dev); > > if (start_index == dev_index) > @@ -152,6 +153,7 @@ int usb_disable_asynch(int disable) > asynch_allowed = !disable; > return old_value; > } > +#endif /* !CONFIG_DM_USB */ > > > /*------------------------------------------------------------------- > @@ -815,6 +817,7 @@ int usb_string(struct usb_device *dev, int index, char *buf, size_t size) > * the USB device are static allocated [USB_MAX_DEVICE]. > */ > > +#ifndef CONFIG_DM_USB > > /* returns a pointer to the device with the index [index]. > * if the device is not assigned (dev->devnum==-1) returns NULL > @@ -827,16 +830,13 @@ struct usb_device *usb_get_dev_index(int index) > return &usb_dev[index]; > } > > -/* returns a pointer of a new device structure or NULL, if > - * no device struct is available > - */ > -struct usb_device *usb_alloc_new_device(void *controller) > +int usb_alloc_new_device(void *controller, struct usb_device **devp) > { > int i; > debug("New Device %d\n", dev_index); > if (dev_index == USB_MAX_DEVICE) { > printf("ERROR, too many USB Devices, max=%d\n", USB_MAX_DEVICE); > - return NULL; > + return -ENOSPC; > } > /* default Address is 0, real addresses start with 1 */ > usb_dev[dev_index].devnum = dev_index + 1; > @@ -846,7 +846,9 @@ struct usb_device *usb_alloc_new_device(void *controller) > usb_dev[dev_index].parent = NULL; > usb_dev[dev_index].controller = controller; > dev_index++; > - return &usb_dev[dev_index - 1]; > + *devp = &usb_dev[dev_index - 1]; > + > + return 0; > } > > /* > @@ -854,7 +856,7 @@ struct usb_device *usb_alloc_new_device(void *controller) > * Called in error cases where configuring a newly attached > * device fails for some reason. > */ > -void usb_free_device(void) > +void usb_free_device(void *controller) > { > dev_index--; > debug("Freeing device node: %d\n", dev_index); > @@ -872,6 +874,8 @@ __weak int usb_alloc_device(struct usb_device *udev) > { > return 0; > } > +#endif /* !CONFIG_DM_USB */ > + > /* > * By the time we get here, the device has gotten a new device ID > * and is in the default state. We need to identify the thing and > diff --git a/common/usb_hub.c b/common/usb_hub.c > index 66b4a72..ccdf755 100644 > --- a/common/usb_hub.c > +++ b/common/usb_hub.c > @@ -211,6 +211,7 @@ void usb_hub_port_connect_change(struct usb_device *dev, int port) > struct usb_device *usb; > ALLOC_CACHE_ALIGN_BUFFER(struct usb_port_status, portsts, 1); > unsigned short portstatus; > + int ret; > > /* Check status */ > if (usb_get_port_status(dev, port + 1, portsts) < 0) { > @@ -246,7 +247,15 @@ void usb_hub_port_connect_change(struct usb_device *dev, int port) > mdelay(200); > > /* Allocate a new device struct for it */ > - usb = usb_alloc_new_device(dev->controller); > +#ifdef CONFIG_DM_USB > + ret = usb_alloc_new_device(dev->controller_dev, &usb); > +#else > + ret = usb_alloc_new_device(dev->controller, &usb); > +#endif > + if (ret) { > + printf("cannot create new device: reg=%d", ret); > + return; > + } > > switch (portstatus & USB_PORT_STAT_SPEED_MASK) { > case USB_PORT_STAT_SUPER_SPEED: > @@ -269,7 +278,7 @@ void usb_hub_port_connect_change(struct usb_device *dev, int port) > /* Run it through the hoops (find a driver, etc) */ > if (usb_new_device(usb)) { > /* Woops, disable the port */ > - usb_free_device(); > + usb_free_device(dev->controller); > dev->children[port] = NULL; > debug("hub: disabling port %d\n", port + 1); > usb_clear_port_feature(dev, port + 1, USB_PORT_FEAT_ENABLE); > diff --git a/common/usb_storage.c b/common/usb_storage.c > index 1411737..8fb2c18 100644 > --- a/common/usb_storage.c > +++ b/common/usb_storage.c > @@ -33,9 +33,12 @@ > > #include > #include > +#include > +#include > #include > #include > #include > +#include > > #include > #include > @@ -158,7 +161,6 @@ unsigned long usb_stor_read(int device, lbaint_t blknr, > lbaint_t blkcnt, void *buffer); > unsigned long usb_stor_write(int device, lbaint_t blknr, > lbaint_t blkcnt, const void *buffer); > -struct usb_device * usb_get_dev_index(int index); > void uhci_show_temp_int_td(void); > > #ifdef CONFIG_PARTITIONS > @@ -208,6 +210,44 @@ static unsigned int usb_get_max_lun(struct us_data *us) > return (len > 0) ? *result : 0; > } > > +static int usb_stor_probe_device(struct usb_device *dev) > +{ > + if (dev == NULL) > + return -ENOENT; /* no more devices available */ > + > + if (usb_storage_probe(dev, 0, &usb_stor[usb_max_devs])) { > + /* OK, it's a storage device. Iterate over its LUNs > + * and populate `usb_dev_desc'. > + */ > + int lun, max_lun, start = usb_max_devs; > + > + max_lun = usb_get_max_lun(&usb_stor[usb_max_devs]); > + for (lun = 0; > + lun <= max_lun && usb_max_devs < USB_MAX_STOR_DEV; > + lun++) { > + struct block_dev_desc *blkdev; > + > + blkdev = &usb_dev_desc[usb_max_devs]; > + > + if (usb_stor_get_info(dev, &usb_stor[start], > + &usb_dev_desc[usb_max_devs]) == > + 1) { > + blkdev->lun = lun; > + blkdev->priv = dev; > + usb_max_devs++; > + } > + } > + } > + > + /* if storage device */ > + if (usb_max_devs == USB_MAX_STOR_DEV) { > + printf("max USB Storage Device reached: %d stopping\n", > + usb_max_devs); > + return -ENOSPC; > + } > + > + return 0; > +} > /******************************************************************************* > * scan the usb and reports device info > * to the user if mode = 1 > @@ -215,8 +255,8 @@ static unsigned int usb_get_max_lun(struct us_data *us) > */ > int usb_stor_scan(int mode) > { > + struct block_dev_desc *blkdev; > unsigned char i; > - struct usb_device *dev; > > if (mode == 1) > printf(" scanning usb for storage devices... "); > @@ -224,47 +264,55 @@ int usb_stor_scan(int mode) > usb_disable_asynch(1); /* asynch transfer not allowed */ > > for (i = 0; i < USB_MAX_STOR_DEV; i++) { > - memset(&usb_dev_desc[i], 0, sizeof(block_dev_desc_t)); > - usb_dev_desc[i].if_type = IF_TYPE_USB; > - usb_dev_desc[i].dev = i; > - usb_dev_desc[i].part_type = PART_TYPE_UNKNOWN; > - usb_dev_desc[i].target = 0xff; > - usb_dev_desc[i].type = DEV_TYPE_UNKNOWN; > - usb_dev_desc[i].block_read = usb_stor_read; > - usb_dev_desc[i].block_write = usb_stor_write; > + blkdev = &usb_dev_desc[i]; > + memset(&blkdev, 0, sizeof(block_dev_desc_t)); > + blkdev->if_type = IF_TYPE_USB; > + blkdev->dev = i; > + blkdev->part_type = PART_TYPE_UNKNOWN; > + blkdev->target = 0xff; > + blkdev->type = DEV_TYPE_UNKNOWN; > + blkdev->block_read = usb_stor_read; > + blkdev->block_write = usb_stor_write; > } > > usb_max_devs = 0; > +#ifdef CONFIG_DM_USB > + struct udevice *bus; > + struct uclass *uc; > + int ret; > + > + ret = uclass_get(UCLASS_USB, &uc); > + if (ret) > + return ret; > + uclass_foreach_dev(bus, uc) { > + struct udevice *dev; > + > + for (device_find_first_child(bus, &dev); > + dev; > + device_find_next_child(&dev)) { > + ret = device_probe(dev); > + if (!ret) { > + struct usb_device *udev; > + > + udev = dev_get_parentdata(dev); > + ret = usb_stor_probe_device(udev); > + } > + if (ret) { > + printf("Device '%s' probe failed: %d\n", > + dev->name, ret); > + } > + } > + } > +#else > for (i = 0; i < USB_MAX_DEVICE; i++) { > + struct usb_device *dev; > + > dev = usb_get_dev_index(i); /* get device */ > debug("i=%d\n", i); > - if (dev == NULL) > - break; /* no more devices available */ > - > - if (usb_storage_probe(dev, 0, &usb_stor[usb_max_devs])) { > - /* OK, it's a storage device. Iterate over its LUNs > - * and populate `usb_dev_desc'. > - */ > - int lun, max_lun, start = usb_max_devs; > - > - max_lun = usb_get_max_lun(&usb_stor[usb_max_devs]); > - for (lun = 0; > - lun <= max_lun && usb_max_devs < USB_MAX_STOR_DEV; > - lun++) { > - usb_dev_desc[usb_max_devs].lun = lun; > - if (usb_stor_get_info(dev, &usb_stor[start], > - &usb_dev_desc[usb_max_devs]) == 1) { > - usb_max_devs++; > - } > - } > - } > - /* if storage device */ > - if (usb_max_devs == USB_MAX_STOR_DEV) { > - printf("max USB Storage Device reached: %d stopping\n", > - usb_max_devs); > + if (usb_stor_probe_device(dev)) > break; > - } > } /* for */ > +#endif > > usb_disable_asynch(0); /* asynch transfer allowed */ > printf("%d Storage Device(s) found\n", usb_max_devs); > @@ -1046,7 +1094,7 @@ unsigned long usb_stor_read(int device, lbaint_t blknr, > unsigned short smallblks; > struct usb_device *dev; > struct us_data *ss; > - int retry, i; > + int retry; > ccb *srb = &usb_ccb; > > if (blkcnt == 0) > @@ -1054,15 +1102,10 @@ unsigned long usb_stor_read(int device, lbaint_t blknr, > > device &= 0xff; > /* Setup device */ > - debug("\nusb_read: dev %d \n", device); > - dev = NULL; > - for (i = 0; i < USB_MAX_DEVICE; i++) { > - dev = usb_get_dev_index(i); > - if (dev == NULL) > - return 0; > - if (dev->devnum == usb_dev_desc[device].target) > - break; > - } > + debug("\nusb_read: dev %d\n", device); > + dev = usb_dev_desc[device].priv; > + if (!dev) > + return 0; > ss = (struct us_data *)dev->privptr; > > usb_disable_asynch(1); /* asynch transfer not allowed */ > @@ -1119,7 +1162,7 @@ unsigned long usb_stor_write(int device, lbaint_t blknr, > unsigned short smallblks; > struct usb_device *dev; > struct us_data *ss; > - int retry, i; > + int retry; > ccb *srb = &usb_ccb; > > if (blkcnt == 0) > @@ -1127,15 +1170,10 @@ unsigned long usb_stor_write(int device, lbaint_t blknr, > > device &= 0xff; > /* Setup device */ > - debug("\nusb_write: dev %d \n", device); > - dev = NULL; > - for (i = 0; i < USB_MAX_DEVICE; i++) { > - dev = usb_get_dev_index(i); > - if (dev == NULL) > - return 0; > - if (dev->devnum == usb_dev_desc[device].target) > - break; > - } > + debug("\nusb_write: dev %d\n", device); > + dev = usb_dev_desc[device].priv; > + if (!dev) > + return 0; > ss = (struct us_data *)dev->privptr; > > usb_disable_asynch(1); /* asynch transfer not allowed */ > diff --git a/drivers/usb/eth/usb_ether.c b/drivers/usb/eth/usb_ether.c > index 7cb96e3..4334d16 100644 > --- a/drivers/usb/eth/usb_ether.c > +++ b/drivers/usb/eth/usb_ether.c > @@ -5,7 +5,9 @@ > */ > > #include > +#include > #include > +#include > > #include "usb_ether.h" > > @@ -118,8 +120,6 @@ static void probe_valid_drivers(struct usb_device *dev) > int usb_host_eth_scan(int mode) > { > int i, old_async; > - struct usb_device *dev; > - > > if (mode == 1) > printf(" scanning usb for ethernet devices... "); > @@ -138,7 +138,38 @@ int usb_host_eth_scan(int mode) > } > > usb_max_eth_dev = 0; > +#ifdef CONFIG_DM_USB > + struct udevice *bus; > + struct uclass *uc; > + int ret; > + > + ret = uclass_get(UCLASS_USB, &uc); > + if (ret) > + return ret; > + uclass_foreach_dev(bus, uc) { > + for (i = 0; i < USB_MAX_DEVICE; i++) { > + struct usb_device *dev; > + > + dev = usb_get_dev_index(bus, i); /* get device */ > + debug("i=%d\n", i); > + if (dev == NULL) > + break; /* no more devices available */ > + > + /* > + * find valid usb_ether driver for this device, > + * if any > + */ > + probe_valid_drivers(dev); > + > + /* check limit */ > + if (usb_max_eth_dev == USB_MAX_ETH_DEV) > + break; > + } /* for */ > + } > +#else > for (i = 0; i < USB_MAX_DEVICE; i++) { > + struct usb_device *dev; > + > dev = usb_get_dev_index(i); /* get device */ > debug("i=%d\n", i); > if (dev == NULL) > @@ -148,13 +179,14 @@ int usb_host_eth_scan(int mode) > probe_valid_drivers(dev); > > /* check limit */ > - if (usb_max_eth_dev == USB_MAX_ETH_DEV) { > - printf("max USB Ethernet Device reached: %d stopping\n", > - usb_max_eth_dev); > + if (usb_max_eth_dev == USB_MAX_ETH_DEV) > break; > - } > } /* for */ > - > +#endif > + if (usb_max_eth_dev == USB_MAX_ETH_DEV) { > + printf("max USB Ethernet Device reached: %d stopping\n", > + usb_max_eth_dev); > + } > usb_disable_asynch(old_async); /* restore asynch value */ > printf("%d Ethernet Device(s) found\n", usb_max_eth_dev); > if (usb_max_eth_dev > 0) > diff --git a/include/usb.h b/include/usb.h > index a8fee0b..ba80eb8 100644 > --- a/include/usb.h > +++ b/include/usb.h > @@ -9,6 +9,7 @@ > #ifndef _USB_H_ > #define _USB_H_ > > +#include > #include > #include > #include > @@ -130,6 +131,10 @@ struct usb_device { > void *controller; /* hardware controller private data */ > /* slot_id - for xHCI enabled devices */ > unsigned int slot_id; > +#ifdef CONFIG_DM_USB > + char **strings; > + struct udevice *controller_dev; > +#endif > }; > > struct int_queue; > @@ -245,7 +250,6 @@ int usb_stop(void); /* stop the USB Controller */ > int usb_set_protocol(struct usb_device *dev, int ifnum, int protocol); > int usb_set_idle(struct usb_device *dev, int ifnum, int duration, > int report_id); > -struct usb_device *usb_get_dev_index(int index); > int usb_control_msg(struct usb_device *dev, unsigned int pipe, > unsigned char request, unsigned char requesttype, > unsigned short value, unsigned short index, > @@ -423,15 +427,79 @@ struct usb_hub_device { > struct usb_hub_descriptor desc; > }; > > +#ifdef CONFIG_DM_USB > + > +/* This is attached to each controller */ > +struct dm_usb_info { > + struct usb_device usb_dev[USB_MAX_DEVICE]; > + int dev_index; > + struct udevice *dev; > + void *controller; /* struct xhci_ctrl, etc. */ > +}; > + > +struct dm_usb_ops { > + int (*hcd_init)(struct udevice *dev, fdt_addr_t *hccrp, > + fdt_addr_t *hcorp); > + int (*control)(struct udevice *dev, struct usb_device *udev, > + unsigned long pipe, void *buffer, int length, > + struct devrequest *setup); > + int (*bulk)(struct udevice *dev, struct usb_device *udev, > + unsigned long pipe, void *buffer, int length); > + int (*interrupt)(struct udevice *dev, struct usb_device *udev, > + unsigned long pipe, void *buffer, int length, > + interval); data type required for "interval". It gives build error. > + int (*alloc_device)(struct udevice *dev, struct usb_device *udev); > +}; > + > +#define usb_get_ops(dev) ((struct dm_usb_ops *)(dev)->driver->ops) > +#define usb_get_emul_ops(dev) ((struct dm_usb_ops *)(dev)->driver->ops) > + > +int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer, > + int length, int interval); > + > +int submit_control_msg(struct usb_device *dev, unsigned long pipe, > + void *buffer, int length, struct devrequest *setup); > + > +int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer, > + int length); > + > +#ifdef CONFIG_MUSB_HOST > +int usb_reset_root_port(void); > +#endif > + > +void usb_free_device(struct udevice *controller); > +/** > + * usb_alloc_new_device() - Allocate a new device > + * > + * @devp: returns a pointer of a new device structure > + * @return 0 if OK, -ENOSPC if we have found out of room for new devices > + */ > +int usb_alloc_new_device(struct udevice *controller, struct usb_device **devp); > + > +struct usb_device *usb_get_dev_index(struct udevice *controller, int index); > + > +#else > + > +void usb_free_device(void *controller); > +/** > + * usb_alloc_new_device() - Allocate a new device > + * > + * @devp: returns a pointer of a new device structure > + * @return 0 if OK, -ENOSPC if we have found out of room for new devices > + */ > +int usb_alloc_new_device(void *controller, struct usb_device **devp); > + > +struct usb_device *usb_get_dev_index(int index); > + > +#endif > + > int usb_hub_probe(struct usb_device *dev, int ifnum); > void usb_hub_reset(void); > int hub_port_reset(struct usb_device *dev, int port, > unsigned short *portstat); > > -struct usb_device *usb_alloc_new_device(void *controller); > - > int usb_new_device(struct usb_device *dev); > -void usb_free_device(void); > + > int usb_alloc_device(struct usb_device *dev); > > #endif /*_USB_H_ */ > -- > 2.2.0.rc0.207.ga3a616c > > _______________________________________________ > U-Boot mailing list > U-Boot at lists.denx.de > http://lists.denx.de/mailman/listinfo/u-boot -- Best Regards Vivek Gautam Samsung R&D Institute, Bangalore India