fastboot: add command to select the eMMC boot configuration
Add command oem bootbus which executes the command
``mmc bootbus <id> <arg>`` on the current fastboot mmc device
(<i> = CONFIG_FASTBOOT_FLASH_MMC_DEV) to set the eMMC boot
configuration on first update, with
<arg> = boot_bus_width reset_boot_bus_width boot_mode
$> fastboot oem bootbus:<boot_bus_width> <reset_boot_bus_width> <boot_mode>
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
diff --git a/doc/android/fastboot.rst b/doc/android/fastboot.rst
index d8cb642..16b1139 100644
--- a/doc/android/fastboot.rst
+++ b/doc/android/fastboot.rst
@@ -25,6 +25,7 @@
- ``oem format`` - this executes ``gpt write mmc %x $partitions``
- ``oem partconf`` - this executes ``mmc partconf %x <arg> 0`` to configure eMMC
with <arg> = boot_ack boot_partition
+- ``oem bootbus`` - this executes ``mmc bootbus %x %s`` to configure eMMC
Support for both eMMC and NAND devices is included.
diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig
index 1bcc8d4..a17e488 100644
--- a/drivers/fastboot/Kconfig
+++ b/drivers/fastboot/Kconfig
@@ -196,6 +196,13 @@
Add support for the "oem partconf" command from a client. This set
the mmc boot-partition for the selecting eMMC device.
+config FASTBOOT_CMD_OEM_BOOTBUS
+ bool "Enable the 'oem bootbus' command"
+ depends on FASTBOOT_FLASH_MMC && SUPPORT_EMMC_BOOT
+ help
+ Add support for the "oem bootbus" command from a client. This set
+ the mmc boot configuration for the selecting eMMC device.
+
endif # FASTBOOT
endmenu
diff --git a/drivers/fastboot/fb_command.c b/drivers/fastboot/fb_command.c
index ae4a7dc..41fc8d7 100644
--- a/drivers/fastboot/fb_command.c
+++ b/drivers/fastboot/fb_command.c
@@ -45,6 +45,9 @@
#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_PARTCONF)
static void oem_partconf(char *, char *);
#endif
+#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_BOOTBUS)
+static void oem_bootbus(char *, char *);
+#endif
static const struct {
const char *command;
@@ -108,6 +111,12 @@
.dispatch = oem_partconf,
},
#endif
+#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_BOOTBUS)
+ [FASTBOOT_COMMAND_OEM_BOOTBUS] = {
+ .command = "oem bootbus",
+ .dispatch = oem_bootbus,
+ },
+#endif
};
/**
@@ -410,3 +419,30 @@
fastboot_okay(NULL, response);
}
#endif
+
+#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_BOOTBUS)
+/**
+ * oem_bootbus() - Execute the OEM bootbus command
+ *
+ * @cmd_parameter: Pointer to command parameter
+ * @response: Pointer to fastboot response buffer
+ */
+static void oem_bootbus(char *cmd_parameter, char *response)
+{
+ char cmdbuf[32];
+
+ if (!cmd_parameter) {
+ fastboot_fail("Expected command parameter", response);
+ return;
+ }
+
+ /* execute 'mmc bootbus' command with cmd_parameter arguments*/
+ snprintf(cmdbuf, sizeof(cmdbuf), "mmc bootbus %x %s",
+ CONFIG_FASTBOOT_FLASH_MMC_DEV, cmd_parameter);
+ printf("Execute: %s\n", cmdbuf);
+ if (run_command(cmdbuf, 0))
+ fastboot_fail("Cannot set oem bootbus", response);
+ else
+ fastboot_okay(NULL, response);
+}
+#endif
diff --git a/include/fastboot.h b/include/fastboot.h
index 80dd825..797d7df 100644
--- a/include/fastboot.h
+++ b/include/fastboot.h
@@ -41,6 +41,9 @@
#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_PARTCONF)
FASTBOOT_COMMAND_OEM_PARTCONF,
#endif
+#if CONFIG_IS_ENABLED(FASTBOOT_CMD_OEM_BOOTBUS)
+ FASTBOOT_COMMAND_OEM_BOOTBUS,
+#endif
FASTBOOT_COMMAND_COUNT
};