On Wed, Feb 11, 2015 at 1:44 PM, Steve Rae srae@broadcom.com wrote:
On 15-01-26 01:49 PM, Rob Herring wrote:
Add "oem format" command to write partition table. This relies on the env variable partitions to contain the list of partitions as required by the gpt command.
Note that this does not erase any data other than the partition table.
Signed-off-by: Rob Herring robh@kernel.org
drivers/usb/gadget/f_fastboot.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c index e2fda86..f7d84bf 100644 --- a/drivers/usb/gadget/f_fastboot.c +++ b/drivers/usb/gadget/f_fastboot.c @@ -516,6 +516,17 @@ static void cb_flash(struct usb_ep *ep, struct usb_request *req) static void cb_oem(struct usb_ep *ep, struct usb_request *req) { char *cmd = req->buf; +#ifdef CONFIG_FASTBOOT_FLASH
if (strncmp("format", cmd + 4, 6) == 0) {char cmdbuf[32];sprintf(cmdbuf, "gpt write mmc %x $partitions",CONFIG_FASTBOOT_FLASH_MMC_DEV);if (run_command(cmdbuf, 0))fastboot_tx_write_str("FAIL");elsefastboot_tx_write_str("OKAY");} else+#endif if (strncmp("unlock", cmd + 4, 8) == 0) { fastboot_tx_write_str("FAILnot implemented"); }
Please clarify the "partitions" env variable. For example, if I have (snippet from the 'mmc part' command): 3 0x00011000 0x000117ff "u-boot" attrs: 0x0000000000000000 type: ebcf4a1c-b9e7-8f06-9885-3bd8b4a46cff guid: d5b495eb-57aa-fc70-23bb-d1897fa4e840 7 0x0001c000 0x00023fff "kernel" attrs: 0x0000000000000000 type: 3c3ea4a6-5eaa-7f7c-1cb7-9374b8191c5d guid: 43b9c433-a106-68bf-aff4-890416fc87d7 what would the corresponding "partitions" env variable look like?
Here is what I have:
"partitions=" \ "name=DTIM,start=0x00200000,size=0x200000;" \ "name=recovery,start=0x00400000,size=0xb00000;" \ "name=bootloader,start=0x00F00000,size=0x100000;" \ "name=boot,start=0x01000000,size=0x1000000;" \ "name=dtb,start=0x02000000,size=0x1000000;" \ "name=system,start=0x03000000,size=0x30000000;" \ "name=vendor,start=0x33000000,size=0x10000000;" \ "name=cache,start=0x43000000,size=0x20000000;" \ "name=userdata,start=0x63000000,size=0x15d000000\0"
The main difference from mmc partition dump is start and size in bytes rather than start and end in blocks.
166 2. Define 'CONFIG_EFI_PARTITION' and 'CONFIG_CMD_GPT' 167 168 2. From u-boot prompt type: 169 gpt write mmc 0 $partitions
How can dump the current "uuid_disk=" (not in the 'mmc part' command?) Is the "uuid=" parameter the 'type:' or the 'guid:' in the 'mmc part' command?
There may not be a way to get the disk uuid currently other than dumping the raw partition table hex. The uuid is the guid. The type used is something corresponds "Windows data" which seems strange. Probably that should be configurable, but it doesn't seem to really matter.
Rob