On Fri, Mar 6, 2015 at 3:25 AM, Simon Glass <[email protected]> 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 <[email protected]> > --- > > 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 <[email protected]> _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
