[U-Boot] [PATCH v9 00/15] SiFive FU540 Support

[Anup Patel]

This patchset adds SiFive Freedom Unleashed (FU540) support
to RISC-V U-Boot.

The patches are based upon latest U-Boot source tree
(git://git.denx.de/u-boot.git) at v2019.04-rc2 commit id
f14de0014c56093feecf42ca38b8ae5b3878f176

All drivers namely: SiFive PRCI, SiFive Serial, and Cadance
MACB Ethernet work fine on actual SiFive Unleashed board and
QEMU sifive_u machine.

Changes since v8:
 - Added bindings document for fixed-factor-clock adapted
   from Linux sources in PATCH9

Changes since v7:
 - Rebased patches to latest U-Boot source tree
 - Rename "ret" to "rate" in clk_fixed_factor_get_rate()
   of PATCH9

Changes since v6:
 - Rebased patches to latest U-Boot source tree
 - Droped PATCH1 and PATCH2. Instead added a PATCH to
   select CREATE_ARCH_SYMLINK for RISC-V
 - Few typo fixes in SiFive FU540 readme

Changes since v5:
 - Added PATCH16 to fix INITRD passing to Linux using bootm
   for U-Boot RISC-V

Changes since v4:
 - Removed #ifndef from macb_enable_clk() in PATCH7
 - Updated test/dm/clk.c in PATCH10 to test fixed factor clock
   using sandbox

Changes since v3:
 - Added patch to un-ignore arch/riscv/include/asm/arch
 - Added patch to fix mrproper make target to only remove
   arch/*/include/asm/arch paths which are symlinks
 - Added patch to have place-holder asm/arch/clk.h for RISC-V
 - Removed "#ifndef CONFIG_RISCV" from macb clk API patch

Changes since v2:
 - Fixed typo in PATCH3 comments
 - Removed "#if" from clk_fixed_factor_ofdata_to_platdata() in PATCH7
 - Added PATCH12 for SiFive FU540 README guide

Changes since v1:
 - Re-ordered SoB in patches with multiple SoB
 - Simplified board_get_usable_ram_top() added by PATCH3

Anup Patel (10):
  riscv: Enable create symlink using kconfig
  riscv: Rename cpu/qemu to cpu/generic
  riscv: Add asm/dma-mapping.h for DMA mappings
  riscv: Add place-holder asm/arch/clk.h for driver compilation
  riscv: generic: Ensure that U-Boot runs within 4GB for 64bit systems
  net: macb: Fix clk API usage for RISC-V systems
  clk: Add SiFive FU540 PRCI clock driver
  clk: Add fixed-factor clock driver
  riscv: Add SiFive FU540 board support
  riscv: Enable CONFIG_SYS_BOOT_RAMDISK_HIGH for using initrd

Atish Patra (5):
  net: macb: Fix GEM hardware detection
  drivers: serial_sifive: Fix baud rate calculation
  drivers: serial_sifive: Skip baudrate config if no input clock
  cpu: Bind timer driver for boot hart
  doc: Add a readme guide for SiFive FU540

 arch/Kconfig                                  |   1 +
 arch/riscv/Kconfig                            |   6 +-
 arch/riscv/cpu/{qemu => generic}/Kconfig      |   2 +-
 arch/riscv/cpu/{qemu => generic}/Makefile     |   0
 arch/riscv/cpu/{qemu => generic}/cpu.c        |   0
 arch/riscv/cpu/generic/dram.c                 |  37 ++
 arch/riscv/cpu/qemu/dram.c                    |  17 -
 arch/riscv/include/asm/arch-generic/clk.h     |  14 +
 arch/riscv/include/asm/config.h               |   1 +
 arch/riscv/include/asm/dma-mapping.h          |  38 ++
 arch/sandbox/dts/test.dts                     |   8 +
 board/emulation/qemu-riscv/Kconfig            |   4 +-
 .../qemu-riscv => sifive/fu540}/Kconfig       |  36 +-
 board/sifive/fu540/MAINTAINERS                |   9 +
 board/sifive/fu540/Makefile                   |   5 +
 board/sifive/fu540/fu540.c                    |  17 +
 configs/sifive_fu540_defconfig                |  11 +
 doc/README.sifive-fu540                       | 303 +++++++++
 .../clock/fixed-factor-clock.txt              |  24 +
 drivers/clk/Kconfig                           |   1 +
 drivers/clk/Makefile                          |   5 +-
 drivers/clk/clk_fixed_factor.c                |  72 +++
 drivers/clk/sifive/Kconfig                    |  19 +
 drivers/clk/sifive/Makefile                   |   5 +
 .../clk/sifive/analogbits-wrpll-cln28hpc.h    | 101 +++
 drivers/clk/sifive/fu540-prci.c               | 604 ++++++++++++++++++
 drivers/clk/sifive/wrpll-cln28hpc.c           | 390 +++++++++++
 drivers/cpu/riscv_cpu.c                       |   7 +-
 drivers/net/macb.c                            |  11 +-
 drivers/serial/serial_sifive.c                |  60 +-
 include/configs/sifive-fu540.h                |  43 ++
 include/dt-bindings/clk/sifive-fu540-prci.h   |  29 +
 test/dm/clk.c                                 |   5 +-
 33 files changed, 1819 insertions(+), 66 deletions(-)
 rename arch/riscv/cpu/{qemu => generic}/Kconfig (91%)
 rename arch/riscv/cpu/{qemu => generic}/Makefile (100%)
 rename arch/riscv/cpu/{qemu => generic}/cpu.c (100%)
 create mode 100644 arch/riscv/cpu/generic/dram.c
 delete mode 100644 arch/riscv/cpu/qemu/dram.c
 create mode 100644 arch/riscv/include/asm/arch-generic/clk.h
 create mode 100644 arch/riscv/include/asm/dma-mapping.h
 copy board/{emulation/qemu-riscv => sifive/fu540}/Kconfig (57%)
 create mode 100644 board/sifive/fu540/MAINTAINERS
 create mode 100644 board/sifive/fu540/Makefile
 create mode 100644 board/sifive/fu540/fu540.c
 create mode 100644 configs/sifive_fu540_defconfig
 create mode 100644 doc/README.sifive-fu540
 create mode 100644 doc/device-tree-bindings/clock/fixed-factor-clock.txt
 create mode 100644 drivers/clk/clk_fixed_factor.c
 create mode 100644 drivers/clk/sifive/Kconfig
 create mode 100644 drivers/clk/sifive/Makefile
 create mode 100644 drivers/clk/sifive/analogbits-wrpll-cln28hpc.h
 create mode 100644 drivers/clk/sifive/fu540-prci.c
 create mode 100644 drivers/clk/sifive/wrpll-cln28hpc.c
 create mode 100644 include/configs/sifive-fu540.h
 create mode 100644 include/dt-bindings/clk/sifive-fu540-prci.h

-- 
2.17.1