[U-Boot] [PATCH] cmd: reset: add parameters to specify reboot_mode
Simon Goldschmidt
simon.k.r.goldschmidt at gmail.com
Fri May 3 20:33:13 UTC 2019
On 03.05.19 22:27, Marek Vasut wrote:
> On 5/3/19 10:25 PM, Simon Goldschmidt wrote:
>> This patch adds parameter support for the 'reset' command to specify
>> the reboot mode (cold vs. warm).
>>
>> Checking these parameters is implemented in the DM implementation.
>>
>> Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
>> ---
>>
>> cmd/boot.c | 4 ++--
>> drivers/sysreset/sysreset-uclass.c | 17 ++++++++++++++++-
>> 2 files changed, 18 insertions(+), 3 deletions(-)
>>
>> diff --git a/cmd/boot.c b/cmd/boot.c
>> index 9150fce80b..c3f33a9ca3 100644
>> --- a/cmd/boot.c
>> +++ b/cmd/boot.c
>> @@ -56,9 +56,9 @@ U_BOOT_CMD(
>> #endif
>>
>> U_BOOT_CMD(
>> - reset, 1, 0, do_reset,
>> + reset, 2, 0, do_reset,
>> "Perform RESET of the CPU",
>> - ""
>> + "[<cold|warm>] - type of reboot"
>> );
>>
>> #ifdef CONFIG_CMD_POWEROFF
>> diff --git a/drivers/sysreset/sysreset-uclass.c b/drivers/sysreset/sysreset-uclass.c
>> index ad831c703a..fbda3f44f2 100644
>> --- a/drivers/sysreset/sysreset-uclass.c
>> +++ b/drivers/sysreset/sysreset-uclass.c
>> @@ -111,9 +111,24 @@ void reset_cpu(ulong addr)
>>
>> int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>> {
>> + enum sysreset_t reboot_mode = SYSRESET_COLD;
>> +
>> + if (argc > 1 && argv[1]) {
>> + switch (*argv[1]) {
>> + case 'w':
>> + reboot_mode = SYSRESET_WARM;
>> + printf("warm ");
>> + break;
>> + case 'c':
>> + reboot_mode = SYSRESET_COLD;
>> + printf("cold ");
>> + break;
>
> This looks like a platform or driver specific stuff ?
Ouch, I just saw the extra printf might have to be removed in a v2...
Anyway, except for that, I don't think it's platform or driver specific.
It's just a way to make the cmd 'reset' take arguments that map to enum
sysreset_t.
There is a problem in that other platforms without UCLASS_SYSRESET don't
handle these arguments, but I thought UCLASS_SYSRESET would be the
future, and the rest would be "legacy"?
Regards,
SImon
More information about the U-Boot
mailing list