Hi Steve,

• implement 'fastboot flash' for eMMC devices

Signed-off-by: Steve Rae srae@broadcom.com Reviewed-by: Marek Vasut marex@denx.de

---

Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2:

• update README.android-fastboot file

README | 10 ++++++++++ doc/README.android-fastboot | 5 +++-- drivers/usb/gadget/f_fastboot.c | 31 +++++++++++++++++++++++++++++++ 3 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/README b/README index 1d71359..ed26884 100644 --- a/README +++ b/README @@ -1623,6 +1623,16 @@ The following options need to be configured: downloads. This buffer should be as large as possible for a platform. Define this to the size available RAM for fastboot.

• CONFIG_FASTBOOT_FLASH
  

• The fastboot protocol includes a "flash" command for
  

writing

• the downloaded image to a non-volatile storage
  

device. Define

• this to enable the "fastboot flash" command.
  

• CONFIG_FASTBOOT_FLASH_MMC_DEV
  

• The fastboot "flash" command requires addition
  

^^^^ additional?

information

• regarding the non-volatile storage device. Define
  

this to

• the eMMC device that fastboot should use to store
  

the image. +

• Journaling Flash filesystem support: CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF,

CONFIG_JFFS2_NAND_SIZE, CONFIG_JFFS2_NAND_DEV diff --git a/doc/README.android-fastboot b/doc/README.android-fastboot index 4045727..1677609 100644 --- a/doc/README.android-fastboot +++ b/doc/README.android-fastboot @@ -6,8 +6,9 @@ Overview The protocol that is used over USB is described in README.android-fastboot-protocol in same directory.

-The current implementation does not yet support the flash and erase -commands. +The current implementation does not yet support the erase command or the +"oem format" command, and there is minimal support for the flash command; +it only supports eMMC devices.

Client installation

diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c index 7a1acb9..e2659fa 100644 --- a/drivers/usb/gadget/f_fastboot.c +++ b/drivers/usb/gadget/f_fastboot.c @@ -19,6 +19,9 @@ #include <linux/compiler.h> #include <version.h> #include <g_dnl.h> +#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV +#include <fb_mmc.h> +#endif

#define FASTBOOT_VERSION "0.4"

@@ -469,6 +472,28 @@ static void cb_boot(struct usb_ep *ep, struct usb_request *req) fastboot_tx_write_str("OKAY"); }

+#ifdef CONFIG_FASTBOOT_FLASH +static void cb_flash(struct usb_ep *ep, struct usb_request *req) +{

• char *cmd = req->buf;
• char response[RESPONSE_LEN];
• strsep(&cmd, ":");
• if (!cmd) {

• printf("%s: missing partition name\n", __func__);
  

• fastboot_tx_write_str("FAILmissing partition name");
  

• return;
  

• }
• strcpy(response, "FAILno flash device defined");

+#ifdef CONFIG_FASTBOOT_FLASH_MMC_DEV

• fb_mmc_flash_write(cmd, (void *)CONFIG_USB_FASTBOOT_BUF_ADDR,

• 	   download_bytes, response);
  

+#endif

• fastboot_tx_write_str(response);

+} +#endif

struct cmd_dispatch_info { char *cmd; void (*cb)(struct usb_ep *ep, struct usb_request *req); @@ -488,6 +513,12 @@ static const struct cmd_dispatch_info cmd_dispatch_info[] = { .cmd = "boot", .cb = cb_boot, }, +#ifdef CONFIG_FASTBOOT_FLASH

• {

• .cmd = "flash",
  

• .cb = cb_flash,
  

• },

+#endif };

static void rx_handler_command(struct usb_ep *ep, struct usb_request *req)

Despite the minor misspelling.

Acked-by: Lukasz Majewski l.majewski@samsung.com