[PATCH v6 0/7] Microchip PolarFire SoC support

[Padmarao Begari]

This patch set adds Microchip PolarFire SoC Icicle Kit support
to RISC-V U-Boot.

The patches are based upon latest U-Boot tree
(https://gitlab.denx.de/u-boot/u-boot.git) at commit id
5a1a8a63be8f7262a300eddafb18020926b12fb6

All drivers namely: NS16550 Serial, Microchip clock,
Cadence eMMC and Cadence MACB Ethernet work fine on actual
Microchip PolarFire SoC Icicle Kit.

Changes in v6:
- Update MACB driver for 32-bit/64-bit DMA based on struct mac_config
- Rename microchip,mpfs-clock.h to microchip-mpfs-clock.h
- Add dual-license GPL or MIT in the clock dt-binding
- Move refclk device tree node under / device tree node
- Remove the dtc warnings
- Fix some typos in device tree and doc

Changes in v5:
- Replace compatible string "microchip,polarfire-soc" with
  "microchip,mpfs-icicle-kit" in the device tree
- Use "mpfs" as identifier in place of "polarfire-soc", "pfsoc"
- Fix some typos in doc
- Rename the clock driver files clk_pfsoc_* to mpfs_clk_*
- Rename pfsoc-clock.h to mpfs-clock.h

Changes in v4:
- Add dual-license GPL or MIT in the device tree
- Replace microsemi compatible strings with microchip
- Add MACB compatible string for Microchip PolarFire SoC ethernet
- Update MACB driver for 32-bit/64-bit DMA based on compatible string

Changes in v3:
- Add 'default y if 64BIT' for config DMA_ADDR_T_64BIT
- Update MACB driver for 32-bit/64-bit DMA based on design config register
- Add phy-handle in MACB driver to read the phy address from device tree
- Fix checkpatch warnings in the clock driver
- Remove fu540 related compatible strings from soc device tree node
- Move refclk device tree node under /soc device tree node
- Use local-mac-address instead of mac-address in the device tree
- Rename device tree to microchip-mpfs-icicle-kit.dts
- Add U-Boot specific dts microchip-mpfs-icicle-kit-u-boot.dtsi file
- Drop the imply DMA_ADDR_T_64BIT from board config
- Fix some typos
- Update doc with Microchip and Custom boot-flow

Changes in v2:
- Add clock frequency for the clint device tree node
- Move peripheral device tree nodes under /soc device tree node
- Device tree nodes are in order based on the address
- Enable UART0 for U-Boot logs
- Update doc for the U-Boot logs are on UART0
- Move clock and reset index source into patch4
- Remove "dma_addr_r" type in the macb driver
- Add lower_32_bits() for 32-bit address in the macb driver
- Add set_rate() returns the new clock rate in the clock driver

Padmarao Begari (7):
  riscv: Add DMA 64-bit address support
  net: macb: Add DMA 64-bit address support for macb
  net: macb: Add phy address to read it from device tree
  clk: Add Microchip PolarFire SoC clock driver
  riscv: dts: Add device tree for Microchip Icicle Kit
  riscv: Add Microchip MPFS Icicle Kit support
  doc: board: Add Microchip MPFS Icicle Kit doc

 arch/riscv/Kconfig                            |   4 +
 arch/riscv/dts/Makefile                       |   1 +
 .../dts/microchip-mpfs-icicle-kit-u-boot.dtsi |  14 +
 arch/riscv/dts/microchip-mpfs-icicle-kit.dts  | 421 +++++++++
 arch/riscv/include/asm/types.h                |   4 +
 board/microchip/mpfs_icicle/Kconfig           |  23 +
 board/microchip/mpfs_icicle/mpfs_icicle.c     |  99 ++-
 configs/microchip_mpfs_icicle_defconfig       |   9 +-
 doc/board/index.rst                           |   1 +
 doc/board/microchip/index.rst                 |   9 +
 doc/board/microchip/mpfs_icicle.rst           | 816 ++++++++++++++++++
 drivers/clk/Kconfig                           |   1 +
 drivers/clk/Makefile                          |   1 +
 drivers/clk/microchip/Kconfig                 |   5 +
 drivers/clk/microchip/Makefile                |   1 +
 drivers/clk/microchip/mpfs_clk.c              | 127 +++
 drivers/clk/microchip/mpfs_clk.h              |  19 +
 drivers/clk/microchip/mpfs_clk_cfg.c          | 134 +++
 drivers/clk/microchip/mpfs_clk_periph.c       | 173 ++++
 drivers/net/macb.c                            | 144 +++-
 drivers/net/macb.h                            |   6 +
 include/configs/microchip_mpfs_icicle.h       |  60 +-
 .../dt-bindings/clock/microchip-mpfs-clock.h  |  45 +
 23 files changed, 2055 insertions(+), 62 deletions(-)
 create mode 100644 arch/riscv/dts/microchip-mpfs-icicle-kit-u-boot.dtsi
 create mode 100644 arch/riscv/dts/microchip-mpfs-icicle-kit.dts
 create mode 100644 doc/board/microchip/index.rst
 create mode 100644 doc/board/microchip/mpfs_icicle.rst
 create mode 100644 drivers/clk/microchip/Kconfig
 create mode 100644 drivers/clk/microchip/Makefile
 create mode 100644 drivers/clk/microchip/mpfs_clk.c
 create mode 100644 drivers/clk/microchip/mpfs_clk.h
 create mode 100644 drivers/clk/microchip/mpfs_clk_cfg.c
 create mode 100644 drivers/clk/microchip/mpfs_clk_periph.c
 create mode 100644 include/dt-bindings/clock/microchip-mpfs-clock.h

-- 
2.17.1