[U-Boot] [PATCH v2 04/22] dm: Add a new CPU init function which can use driver model

[Simon Glass]

On 9 March 2015 at 03:02, Bin Meng <bmeng.cn at gmail.com> wrote:
> On Fri, Mar 6, 2015 at 3:25 AM, Simon Glass <sjg at chromium.org> wrote:
>> Since driver model is set up after arch_cpu_init(), that function cannot
>> use drivers. Add a new arch_cpu_init_dm() function which is called
>> immediately after driver model is ready, and can reference devices.
>>
>> This can be used to probe essential devices for the CPU.
>>
>> Signed-off-by: Simon Glass <sjg at chromium.org>
>> ---
>>
>> Changes in v2:
>> - Add a new patch with a CPU init function which can use driver model
>>
>>  common/board_f.c |  6 ++++++
>>  include/common.h | 11 +++++++++++
>>  2 files changed, 17 insertions(+)
>>
>> diff --git a/common/board_f.c b/common/board_f.c
>> index 4d8b8a6..8bbece2 100644
>> --- a/common/board_f.c
>> +++ b/common/board_f.c
>> @@ -787,6 +787,11 @@ __weak int reserve_arch(void)
>>         return 0;
>>  }
>>
>> +__weak int arch_cpu_init_dm(void)
>> +{
>> +       return 0;
>> +}
>> +
>>  static init_fnc_t init_sequence_f[] = {
>>  #ifdef CONFIG_SANDBOX
>>         setup_ram_buf,
>> @@ -807,6 +812,7 @@ static init_fnc_t init_sequence_f[] = {
>>         fdtdec_check_fdt,
>>  #endif
>>         initf_dm,
>> +       arch_cpu_init_dm,
>>  #if defined(CONFIG_BOARD_EARLY_INIT_F)
>>         board_early_init_f,
>>  #endif
>> diff --git a/include/common.h b/include/common.h
>> index 77c55c6..f9aaaa5 100644
>> --- a/include/common.h
>> +++ b/include/common.h
>> @@ -253,6 +253,17 @@ int update_flash_size(int flash_size);
>>  int arch_early_init_r(void);
>>
>>  /**
>> + * arch_cpu_init_dm() - init CPU after driver model is available
>> + *
>> + * This is called immediately after driver model is available before
>> + * relocation. This is similar to arch_cpu_init() but is able to reference
>> + * devices
>> + *
>> + * @return 0 if OK, -ve on error
>> + */
>> +int arch_cpu_init_dm(void);
>> +
>> +/**
>>   * Reserve all necessary stacks
>>   *
>>   * This is used in generic board init sequence in common/board_f.c. Each
>> --
>
> Reviewed-by: Bin Meng <bmeng.cn at gmail.com>

Applied to u-boot-dm/next.