On Fri, Mar 6, 2015 at 3:25 AM, Simon Glass sjg@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@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@gmail.com