u-boot/arch/arm/mach-stm32mp
Bin Meng 4854ebc57e arm: stm32mp: Remove DM_FLAG_PRE_RELOC flag
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@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-11-14 09:16:28 -08:00
..
include/mach stm32mp1: add bsec driver 2018-05-26 18:19:18 -04:00
bsec.c arm: stm32mp: Remove DM_FLAG_PRE_RELOC flag 2018-11-14 09:16:28 -08:00
config.mk SPDX: Convert all of our multiple license tags to Linux Kernel style 2018-05-07 10:24:31 -04:00
cpu.c stm32mp1: use OTP to configure MAC address and serial number 2018-05-26 18:19:18 -04:00
dram_init.c SPDX: Convert all of our multiple license tags to Linux Kernel style 2018-05-07 10:24:31 -04:00
Kconfig stm32mp1: activate MISC support in SPL 2018-07-20 15:55:05 -04:00
Makefile stm32mp1: add bsec driver 2018-05-26 18:19:18 -04:00
psci.c arm: stm32mp1: add PSCI support 2018-05-07 11:52:48 -04:00
pwr_regulator.c stm32mp: regulator: add SoC pwr regulator support 2018-05-08 09:07:38 -04:00
spl.c stm32mp1: remove the second TAMP_BOOT_CONTEXT update 2018-05-26 18:19:18 -04:00
syscon.c stm32mp: regulator: add SoC pwr regulator support 2018-05-08 09:07:38 -04:00