From 372d7decfe972966c49b337f3d2888e09004dbe4 Mon Sep 17 00:00:00 2001
From: Rob Herring <robh@kernel.org>
Date: Mon, 26 Jan 2015 15:49:01 -0600
Subject: [PATCH] fastboot: add support for "oem format" command

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>
Reviewed-by: Steve Rae <srae@broadcom.com>
---
 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 e2fda8613b..f7d84bff3f 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");
+                else
+			fastboot_tx_write_str("OKAY");
+	} else
+#endif
 	if (strncmp("unlock", cmd + 4, 8) == 0) {
 		fastboot_tx_write_str("FAILnot implemented");
 	}
-- 
2.39.5