On 10/15/19 9:59 AM, Sascha Hauer wrote:
> On Tue, Oct 15, 2019 at 08:58:23AM +0200, Ahmad Fatoum wrote:
>> Hello,
>>
>> On 10/14/19 2:51 PM, Sascha Hauer wrote:
>>> On Mon, Oct 14, 2019 at 08:39:21AM +0200, Ahmad Fatoum wrote:
>>>> Now with the SD/MMC controller supported, lets add a bbu handler, so we
>>>> can use it to update the second stage boot loader partition.
>>>>
>>>> Signed-off-by: Ahmad Fatoum <a.fat...@pengutronix.de>
>>>> ---
>>>> arch/arm/boards/stm32mp157c-dk2/board.c | 14 ++++++++++++++
>>>> arch/arm/mach-stm32mp/include/mach/bbu.h | 14 ++++++++++++++
>>>> 2 files changed, 28 insertions(+)
>>>> create mode 100644 arch/arm/mach-stm32mp/include/mach/bbu.h
>>>>
>>>> diff --git a/arch/arm/boards/stm32mp157c-dk2/board.c
>>>> b/arch/arm/boards/stm32mp157c-dk2/board.c
>>>> index 9cb861af85d8..23eb6728b15a 100644
>>>> --- a/arch/arm/boards/stm32mp157c-dk2/board.c
>>>> +++ b/arch/arm/boards/stm32mp157c-dk2/board.c
>>>> @@ -4,6 +4,7 @@
>>>> #include <init.h>
>>>> #include <asm/memory.h>
>>>> #include <mach/stm32.h>
>>>> +#include <mach/bbu.h>
>>>>
>>>> static int dk2_mem_init(void)
>>>> {
>>>> @@ -15,3 +16,16 @@ static int dk2_mem_init(void)
>>>> return 0;
>>>> }
>>>> mem_initcall(dk2_mem_init);
>>>> +
>>>> +static int dk2_postcore_init(void)
>>>> +{
>>>> + if (!of_machine_is_compatible("st,stm32mp157c-dk2"))
>>>> + return 0;
>>>> +
>>>> + stm32mp_bbu_mmc_register_handler("sd", "/dev/disk0.ssbl",
>>>> + BBU_HANDLER_FLAG_DEFAULT);
>>>
>>> You should create an alias in dt for the sd device node (might exist
>>> already, don't know) and use mci_of_parse_node() in the SD driver. With
>>> this you get consistent names. "disk0" will be different devices
>>> depending on probe order.
>>
>> Ah, ok. I'll resend when Oleksij resends his.
>> The first patch would be useful to have for other boards as well.
>> Could you apply it seperately?
>
> I applied all other patches except this one. Environment on SD cards
> doesn't obviously work as long as the driver is not there, but that
> should be a reason to not apply this series, right?
Great, thanks
Ahmad
>
> Sascha
>
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