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| author | Heiko Schocher <hs@denx.de> | 2021-02-10 09:29:03 +0100 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2021-02-26 15:30:55 +0100 |
| commit | bc820d5bcc507366677c592e400e120481748c05 (patch) | |
| tree | 63020a78f16249aa8bc570a1c3ccfff97ae0c513 /drivers/fastboot | |
| parent | 403c2e46b4e99e87901f90fb879081e5baa6bb0b (diff) | |
| download | u-boot-bc820d5bcc507366677c592e400e120481748c05.tar.gz u-boot-bc820d5bcc507366677c592e400e120481748c05.tar.bz2 u-boot-bc820d5bcc507366677c592e400e120481748c05.zip | |
fastboot: add UUU command UCmd and ACmd support
add support for the UUU commands ACmd and UCmd.
Enable them through the Kconfig option
CONFIG_FASTBOOT_UUU_SUPPORT
base was commit in NXP kernel
9b149c2a2882: ("MLK-18591-3 android: Add FSL android fastboot support")
and ported it to current mainline. Tested this patch
on imx6ul based board.
Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Diffstat (limited to 'drivers/fastboot')
| -rw-r--r-- | drivers/fastboot/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/fastboot/fb_command.c | 68 |
2 files changed, 77 insertions, 0 deletions
diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig index a17e488714..2d1836a80e 100644 --- a/drivers/fastboot/Kconfig +++ b/drivers/fastboot/Kconfig @@ -72,6 +72,15 @@ config FASTBOOT_FLASH the downloaded image to a non-volatile storage device. Define this to enable the "fastboot flash" command. +config FASTBOOT_UUU_SUPPORT + bool "Enable FASTBOOT i.MX UUU special command" + default n + help + The fastboot protocol includes "UCmd" and "ACmd" command. + Be aware that you provide full access to any U-Boot command, + including working with memory and may open a huge backdoor, + when enabling this option. + choice prompt "Flash provider for FASTBOOT" depends on FASTBOOT_FLASH diff --git a/drivers/fastboot/fb_command.c b/drivers/fastboot/fb_command.c index 41fc8d7904..3a5db5b08f 100644 --- a/drivers/fastboot/fb_command.c +++ b/drivers/fastboot/fb_command.c @@ -49,6 +49,11 @@ static void oem_partconf(char *, char *); static void oem_bootbus(char *, char *); #endif +#if CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT) +static void run_ucmd(char *, char *); +static void run_acmd(char *, char *); +#endif + static const struct { const char *command; void (*dispatch)(char *cmd_parameter, char *response); @@ -117,6 +122,16 @@ static const struct { .dispatch = oem_bootbus, }, #endif +#if CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT) + [FASTBOOT_COMMAND_UCMD] = { + .command = "UCmd", + .dispatch = run_ucmd, + }, + [FASTBOOT_COMMAND_ACMD] = { + .command = "ACmd", + .dispatch = run_acmd, + }, +#endif }; /** @@ -327,6 +342,59 @@ static void erase(char *cmd_parameter, char *response) } #endif +#if CONFIG_IS_ENABLED(FASTBOOT_UUU_SUPPORT) +/** + * run_ucmd() - Execute the UCmd command + * + * @cmd_parameter: Pointer to command parameter + * @response: Pointer to fastboot response buffer + */ +static void run_ucmd(char *cmd_parameter, char *response) +{ + if (!cmd_parameter) { + pr_err("missing slot suffix\n"); + fastboot_fail("missing command", response); + return; + } + + if (run_command(cmd_parameter, 0)) + fastboot_fail("", response); + else + fastboot_okay(NULL, response); +} + +static char g_a_cmd_buff[64]; + +void fastboot_acmd_complete(void) +{ + run_command(g_a_cmd_buff, 0); +} + +/** + * run_acmd() - Execute the ACmd command + * + * @cmd_parameter: Pointer to command parameter + * @response: Pointer to fastboot response buffer + */ +static void run_acmd(char *cmd_parameter, char *response) +{ + if (!cmd_parameter) { + pr_err("missing slot suffix\n"); + fastboot_fail("missing command", response); + return; + } + + if (strlen(cmd_parameter) > sizeof(g_a_cmd_buff)) { + pr_err("too long command\n"); + fastboot_fail("too long command", response); + return; + } + + strcpy(g_a_cmd_buff, cmd_parameter); + fastboot_okay(NULL, response); +} +#endif + /** * reboot_bootloader() - Sets reboot bootloader flag. * |