[U-Boot] [PATCH 08/13] timer: Remove DM_FLAG_PRE_RELOC flag in various drivers

sjg at google.com sjg at google.com
Tue Nov 6 22:42:16 UTC 2018


On 24 October 2018 at 07:36, Bin Meng <bmeng.cn at gmail.com> wrote:
> When a driver declares DM_FLAG_PRE_RELOC flag, it wishes to be
> bound before relocation. However due to a bug in the DM core,
> the flag only takes effect when devices are statically declared
> via U_BOOT_DEVICE(). This bug has been fixed recently by commit
> "dm: core: Respect drivers with the DM_FLAG_PRE_RELOC flag in
> lists_bind_fdt()", but with the fix, it has a side effect that
> all existing drivers that declared DM_FLAG_PRE_RELOC flag will
> be bound before relocation now. This may expose potential boot
> failure on some boards due to insufficient memory during the
> pre-relocation stage.
>
> To mitigate this potential impact, the following changes are
> implemented:
>
> - Remove DM_FLAG_PRE_RELOC flag in the driver, if the driver
>   only supports configuration from device tree (OF_CONTROL)
> - Keep DM_FLAG_PRE_RELOC flag in the driver only if the device
>   is statically declared via U_BOOT_DEVICE()
> - Surround DM_FLAG_PRE_RELOC flag with OF_CONTROL check, for
>   drivers that support both statically declared devices and
>   configuration from device tree
>
> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
> ---
>
>  drivers/timer/ag101p_timer.c    | 1 -
>  drivers/timer/altera_timer.c    | 1 -
>  drivers/timer/arc_timer.c       | 1 -
>  drivers/timer/ast_timer.c       | 1 -
>  drivers/timer/atcpit100_timer.c | 1 -
>  drivers/timer/atmel_pit_timer.c | 1 -
>  drivers/timer/cadence-ttc.c     | 1 -
>  drivers/timer/dw-apb-timer.c    | 1 -
>  drivers/timer/mpc83xx_timer.c   | 1 -
>  drivers/timer/omap-timer.c      | 1 -
>  drivers/timer/rockchip_timer.c  | 1 -
>  drivers/timer/sti-timer.c       | 1 -
>  drivers/timer/stm32_timer.c     | 1 -
>  drivers/timer/tsc_timer.c       | 1 -
>  14 files changed, 14 deletions(-)
>

Reviewed-by: Simon Glass <sjg at chromium.org>

Applied to u-boot-dm/master, thanks!


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