[PATCH v3 0/6] rockchip: add vendor-wide support for detecting U-Boot proper boot medium

[Quentin Schulz]

It is possible to boot U-Boot proper from a different storage medium
than the one used by the BOOTROM to load the SPL. This information is
stored in the u-boot,spl-boot-device Device Tree property and is
accessible from U-Boot proper so that it has knowledge at runtime where
it was loaded from.

This is already supported on rk3399 and px30 but with duplicated code,
so this patch series also factor out all of this into spl-boot-order of
Rockchip platforms. Finally, let's invert the logic used to define the
BOOT_DEVICE_ value in a different function so that
/chosen/u-boot,spl-boot-device can be transparently added without any
further work for existing and future SoCs.

While at it, let's do some cleanups for Rockchip platforms.

Tested on RK3399 Puma, PX30 Ringneck and (upcoming) RK3588 Jaguar.

Signed-off-by: Quentin Schulz <quentin.schulz at theobroma-systems.com>
---
Changes in v3:
- revamp spl_decode_boot_device to not necessitate hardcoded arrays,
  instead, the info is gotten from the inverted logic from
  spl_node_to_boot_device where the BOOT_DEVICE_* is set
- add Rbs
- Link to v2: https://lore.kernel.org/r/20231108-rk3588-spl-boot-dev-v2-0-e67e26202c85@theobroma-systems.com

Changes in v2:
- add factoring into spl-boot-order
- rework rk3588 support to use the factored out function
- add global data ptr cleanup
- remove rk3128 main SoC file (useless content)
- Link to v1: https://lore.kernel.org/r/20230502-rk3588-spl-boot-dev-v1-1-071722a85d2d@theobroma-systems.com

---
Quentin Schulz (6):
      rockchip: rk3399: simplify logic for getting SPL boot medium DT node
      rockchip: px30: simplify logic for getting SPL boot medium DT node
      rockchip: factor out spl_perform_fixups into common spl-boot-order
      rockchip: find U-boot proper boot device by inverting the logic that sets it
      rockchip: remove unused global data ptr
      rockchip: rk3128: remove noop file

 arch/arm/mach-rockchip/board.c          |   3 -
 arch/arm/mach-rockchip/px30/px30.c      |  49 ---------------
 arch/arm/mach-rockchip/rk3128/Makefile  |   1 -
 arch/arm/mach-rockchip/rk3128/rk3128.c  |  16 -----
 arch/arm/mach-rockchip/rk3308/rk3308.c  |   3 -
 arch/arm/mach-rockchip/rk3328/rk3328.c  |   3 -
 arch/arm/mach-rockchip/rk3368/rk3368.c  |   3 -
 arch/arm/mach-rockchip/rk3399/rk3399.c  |  51 ----------------
 arch/arm/mach-rockchip/rk3588/rk3588.c  |   2 -
 arch/arm/mach-rockchip/spl-boot-order.c | 104 ++++++++++++++++++++++++++++++++
 10 files changed, 104 insertions(+), 131 deletions(-)
---
base-commit: 106332d6cc583c4339e07020989d09b567900a59
change-id: 20230502-rk3588-spl-boot-dev-efa2777cc21b

Best regards,
-- 
Quentin Schulz <quentin.schulz at theobroma-systems.com>