i.MX: Add i.MX8QXP support

This patchset is to upstream basic i.MX8QXP and MEK board support, with some drivers update to support i.MX8QXP. The information about the processor could be found under

https://www.nxp.com/products/processors-and-microcontrollers/applications-processors/i.mx-applications-processors/i.mx-8-processors/i.mx-8x-family-arm-cortex-a35-3d-graphics-4k-video-dsp-error-correcting-code-on-ddr:i.MX8X

The architecture of i.MX8QXP is different from i.MX6/7/8M, inside i.MX8QXP, there is a dedicated processor(SCU) used for power/clock/pin/ pad/resource management/thermal and etc.

V6:
This series was rebased on master and addresses some v5 review comments and additionally adds FEC support. Summary of the changes to v5 patches is below.

Patch 08/32:
- fixed error string: s/clk/iomux

Patch 09/32:
- minor coding style fix (dropped empty lines), added API functions for reading SCFW buildinfo and for reading MAC address from fuses

Patch 18/32:
- fixed typo in subject and one line over 80 chars warning

Patch 19/32:
- s/u-boot/U-Boot in comments

Added two new patches (20/34 and 21/34) for adding uclass cpu driver and extension for reading MAC address from fuses (required for FEC driver)

Extended original patch 25/32:
- added support for more I2C/ENET/UART clocks, added 'clk dump' command
- fixed to propagate error codes (if returned by sc_pm_* API) to the caller
- fixed printf formatting in debug()
- extended for clock ID range checks to differentiate between not yet supported and invalid clock IDs.

Patch 28/32:
- guard get_lpuart_clk_rate() by IS_ENABLED to prevent build issues

Patch 30/32:
- propagate error code if clk api calls fail

Patch 31/32:
- added FEC nodes and aliases

Patch 32/32:
In DTS:
- added fec1 support, pca9646 switch description on i2c1 bus with i2c slaves
- removed not used 'pinctrl-assert-gpios' property
- s/lpi1cgrp/lpi2c1grp/
- added 'dm-pre-reloc' to cpu0 node (needed for print_cpuinfo()!)

In board code:
- reworked gpio init (repaced by init via properties in DTS), dropped GPIO5_9 mux init (was unused, will be added later when adding USB support)
- added board_phy_config() for FEC0 support
- added SCFW build info output
- moved CONFIG_MXC_GPIO from board config header to defconfig
- added required FEC driver options to the board config header
- updated defconfig: enabled 'clk', 'cpu' and 'dm' commands, PHY, FEC, MII and MXC GPIO support

V5:
Addressed Lothar Waßmann's comments for patch 24 and 32. Rebased on master.

V4:
Add reviewed tag from Anatolij Gustschin
Addressed comments from Anatolig for patch "misc: add i.MX8 misc driver" Addressed comments from Anatolig for patch "misc: imx8: add scfw api impementation"
Merged the files into one
Moved one error handle to patch 4
Moved patch "arm: global_data: add scu_dev for i.MX8" to patch 7
For Fabio's comments to imx-mkimage, I'll start the porting work, but needs more time, it will be not be in this patchset.

V3:

patch 7: use CONFIG_IMX8
patch 29: use CONFIG_IMX8
patch 32: Added README with scfw_tcm.bin link added
misc: remove sc_rpc_msg_t typedef, use struct sc_rpc_msg_s in patchset.

V2:
In this V2 patchset, the SCFW API is replaced by uclass driver implementation, but the api name is not changed from scfw api. The related macro definitions are kept in different api.h file following SCFW API file structure.

Impelemnted scu misc driver to handle the low level communication between Acore and SCU.
Implemented rm/pm/pad/misc protocol code to invoke misc_call for different functionality.
The dm clk/pinctrl/power and others will invokde the protocol api to communicate with SCU.

The arch/arm/mach-imx/imx8/clock.c currently is only a dummy file to avoid build break for mxc_get_clock.

The i2c patch and common power domain patches are removed from this patchset.

The imx8 name still kept, this is because NXP marketing requires to use this name for i.MX branding.

Anatolij Gustschin (2):
imx8: cpu: add function for reading FEC MAC from fuse
imx8: cpu: add uclass based CPU driver

Peng Fan (30):
dt-bindings: pinctrl: add i.MX8QXP pads definition
dt-bindings: clock: dt-bindings: pinctrl: add i.MX8QXP clocks
definition
dt-bindings: soc: add i.MX8QXP pm and rsrc definition
imx8: add scfw macro definition
imx: add Kconfig entry for i.MX8QXP
arm: build mach-imx for i.MX8
arm: global_data: add scu_dev for i.MX8
misc: add i.MX8 misc driver
misc: imx8: add scfw api impementation
imx: boot_mode: Add FLEXSPI boot entry
imx8: add imx-regs header file
imx8: pins: include i.MX8QXP pin header when CONFIG_IMX8QXP defined
imx: add i.MX8 cpu type
armv8: add cpu core helper functions
imx8: add basic cpu support
imx8: add boot device detection
imx8: implement mmc_get_env_dev
imx8: add mmu and dram related functions
imx8: add arch_cpu_init arch_cpu_init_dm
imx8: add iomux configuration api
imx8: add dummy clock
gpio: mxc_gpio: add support for i.MX8
pinctrl: Add pinctrl driver for i.MX8
power: Add power domain driver for i.MX8
clk: imx: add clk driver for i.MX8QXP
serial_lpuart: Update lpuart driver to support i.MX8
serial: lpuart: support uclass clk api
mmc: fsl_esdhc: add uclass clk support
arm: dts: introduce dtsi for i.MX8QXP
imx: add i.MX8QXP MEK board support

Ye Li (2):
serial: lpuart: Enable RX and TX FIFO
fsl_esdhc: Update usdhc driver to support i.MX8

 arch/arm/Kconfig                              |   8 +
 arch/arm/Makefile                             |   2 +-
 arch/arm/dts/Makefile                         |   2 +
 arch/arm/dts/fsl-imx8-ca35.dtsi               |  66 ++
 arch/arm/dts/fsl-imx8dx.dtsi                  | 499 ++++++++++++
 arch/arm/dts/fsl-imx8dxp.dtsi                 |  11 +
 arch/arm/dts/fsl-imx8qxp-mek.dts              | 246 ++++++
 arch/arm/dts/fsl-imx8qxp.dtsi                 |  51 ++
 arch/arm/include/asm/arch-imx/cpu.h           |   6 +
 arch/arm/include/asm/arch-imx8/clock.h        |  27 +
 arch/arm/include/asm/arch-imx8/gpio.h         |  21 +
 arch/arm/include/asm/arch-imx8/imx-regs.h     |  46 ++
 arch/arm/include/asm/arch-imx8/imx8-pins.h    |  15 +
 arch/arm/include/asm/arch-imx8/iomux.h        |  40 +
 arch/arm/include/asm/arch-imx8/power-domain.h |  15 +
 arch/arm/include/asm/arch-imx8/sci/rpc.h      | 158 ++++
 arch/arm/include/asm/arch-imx8/sci/sci.h      |  88 ++
 .../include/asm/arch-imx8/sci/svc/misc/api.h  |  30 +
 .../include/asm/arch-imx8/sci/svc/pad/api.h   |  57 ++
 .../include/asm/arch-imx8/sci/svc/pm/api.h    |  44 +
 .../include/asm/arch-imx8/sci/svc/rm/api.h    |  69 ++
 arch/arm/include/asm/arch-imx8/sci/types.h    | 220 +++++
 arch/arm/include/asm/arch-imx8/sys_proto.h    |  19 +
 arch/arm/include/asm/armv8/cpu.h              |  26 +
 arch/arm/include/asm/global_data.h            |   4 +
 arch/arm/include/asm/mach-imx/boot_mode.h     |   1 +
 arch/arm/include/asm/mach-imx/sys_proto.h     |   3 +
 arch/arm/mach-imx/Makefile                    |   1 +
 arch/arm/mach-imx/imx8/Kconfig                |  26 +
 arch/arm/mach-imx/imx8/Makefile               |   7 +
 arch/arm/mach-imx/imx8/clock.c                |  21 +
 arch/arm/mach-imx/imx8/cpu.c                  | 646 +++++++++++++++
 arch/arm/mach-imx/imx8/iomux.c                |  43 +
 board/freescale/imx8qxp_mek/Kconfig           |  14 +
 board/freescale/imx8qxp_mek/MAINTAINERS       |   6 +
 board/freescale/imx8qxp_mek/Makefile          |   7 +
 board/freescale/imx8qxp_mek/README            |  72 ++
 board/freescale/imx8qxp_mek/imx8qxp_mek.c     | 170 ++++
 board/freescale/mx8mq_evk/README              |  81 ++
 configs/imx8qxp_mek_defconfig                 |  51 ++
 drivers/clk/Kconfig                           |   1 +
 drivers/clk/Makefile                          |   1 +
 drivers/clk/imx/Kconfig                       |   6 +
 drivers/clk/imx/Makefile                      |   5 +
 drivers/clk/imx/clk-imx8.c                    | 393 +++++++++
 drivers/gpio/mxc_gpio.c                       |  30 +-
 drivers/misc/Makefile                         |   1 +
 drivers/misc/imx8/Makefile                    |   3 +
 drivers/misc/imx8/scu.c                       | 266 ++++++
 drivers/misc/imx8/scu_api.c                   | 367 +++++++++
 drivers/mmc/fsl_esdhc.c                       |  34 +-
 drivers/pinctrl/nxp/Kconfig                   |  18 +
 drivers/pinctrl/nxp/Makefile                  |   2 +
 drivers/pinctrl/nxp/pinctrl-imx.c             | 209 ++---
 drivers/pinctrl/nxp/pinctrl-imx.h             |  16 +
 drivers/pinctrl/nxp/pinctrl-imx8.c            |  40 +
 drivers/pinctrl/nxp/pinctrl-scu.c             |  66 ++
 drivers/power/domain/Kconfig                  |   8 +-
 drivers/power/domain/Makefile                 |   1 +
 drivers/power/domain/imx8-power-domain.c      | 315 ++++++++
 drivers/serial/serial_lpuart.c                | 128 ++-
 include/configs/imx8qxp_mek.h                 | 157 ++++
 include/dt-bindings/clock/imx8qxp-clock.h     | 583 ++++++++++++++
 include/dt-bindings/pinctrl/pads-imx8qxp.h    | 757 ++++++++++++++++++
 include/dt-bindings/soc/imx8_pd.h             | 188 +++++
 include/dt-bindings/soc/imx_rsrc.h            | 557 +++++++++++++
 include/fsl_lpuart.h                          |   2 +-
 67 files changed, 6931 insertions(+), 142 deletions(-)
 create mode 100644 arch/arm/dts/fsl-imx8-ca35.dtsi
 create mode 100644 arch/arm/dts/fsl-imx8dx.dtsi
 create mode 100644 arch/arm/dts/fsl-imx8dxp.dtsi
 create mode 100644 arch/arm/dts/fsl-imx8qxp-mek.dts
 create mode 100644 arch/arm/dts/fsl-imx8qxp.dtsi
 create mode 100644 arch/arm/include/asm/arch-imx8/clock.h
 create mode 100644 arch/arm/include/asm/arch-imx8/gpio.h
 create mode 100644 arch/arm/include/asm/arch-imx8/imx-regs.h
 create mode 100644 arch/arm/include/asm/arch-imx8/imx8-pins.h
 create mode 100644 arch/arm/include/asm/arch-imx8/iomux.h
 create mode 100644 arch/arm/include/asm/arch-imx8/power-domain.h
 create mode 100644 arch/arm/include/asm/arch-imx8/sci/rpc.h
 create mode 100644 arch/arm/include/asm/arch-imx8/sci/sci.h
 create mode 100644 arch/arm/include/asm/arch-imx8/sci/svc/misc/api.h
 create mode 100644 arch/arm/include/asm/arch-imx8/sci/svc/pad/api.h
 create mode 100644 arch/arm/include/asm/arch-imx8/sci/svc/pm/api.h
 create mode 100644 arch/arm/include/asm/arch-imx8/sci/svc/rm/api.h
 create mode 100644 arch/arm/include/asm/arch-imx8/sci/types.h
 create mode 100644 arch/arm/include/asm/arch-imx8/sys_proto.h
 create mode 100644 arch/arm/include/asm/armv8/cpu.h
 create mode 100644 arch/arm/mach-imx/imx8/Kconfig
 create mode 100644 arch/arm/mach-imx/imx8/Makefile
 create mode 100644 arch/arm/mach-imx/imx8/clock.c
 create mode 100644 arch/arm/mach-imx/imx8/cpu.c
 create mode 100644 arch/arm/mach-imx/imx8/iomux.c
 create mode 100644 board/freescale/imx8qxp_mek/Kconfig
 create mode 100644 board/freescale/imx8qxp_mek/MAINTAINERS
 create mode 100644 board/freescale/imx8qxp_mek/Makefile
 create mode 100644 board/freescale/imx8qxp_mek/README
 create mode 100644 board/freescale/imx8qxp_mek/imx8qxp_mek.c
 create mode 100644 board/freescale/mx8mq_evk/README
 create mode 100644 configs/imx8qxp_mek_defconfig
 create mode 100644 drivers/clk/imx/Kconfig
 create mode 100644 drivers/clk/imx/Makefile
 create mode 100644 drivers/clk/imx/clk-imx8.c
 create mode 100644 drivers/misc/imx8/Makefile
 create mode 100644 drivers/misc/imx8/scu.c
 create mode 100644 drivers/misc/imx8/scu_api.c
 create mode 100644 drivers/pinctrl/nxp/pinctrl-imx8.c
 create mode 100644 drivers/pinctrl/nxp/pinctrl-scu.c
 create mode 100644 drivers/power/domain/imx8-power-domain.c
 create mode 100644 include/configs/imx8qxp_mek.h
 create mode 100644 include/dt-bindings/clock/imx8qxp-clock.h
 create mode 100644 include/dt-bindings/pinctrl/pads-imx8qxp.h
 create mode 100644 include/dt-bindings/soc/imx8_pd.h
 create mode 100644 include/dt-bindings/soc/imx_rsrc.h

2.17.1