[PATCH v5 00/14] RISC-V SiFive FU540 support SPL

[Pragnesh Patel]

This series add support for SPL to FU540.U-Boot SPL can boot from
L2 LIM (0x0800_0000) and jump to OpenSBI(FW_DYNAMIC firmware) and
U-Boot proper from MMC devices.

How to test this patch:
1) Go to OpenSBI-dir : make PLATFORM=sifive/fu540 O=build_dir I=install_dir FW_DYNAMIC=y install
2) cp install_dir/platform/sifive/fu540/firmware/fw_dynamic.bin <u-boot-dir>/
3) Change to u-boot-dir
4) make sifive_fu540_defconfig
5) make all
6) ZSBL loads the U-boot SPL(u-boot-spl.bin) from a partition with
   GUID type 5B193300-FC78-40CD-8002-E86C45580B47

   sudo dd if=spl/u-boot-spl.bin of=/dev/sdc4 bs=1M

7) U-boot SPL expects a u-boot FIT image(u-boot.itb) from 1st partition(/dev/sdc1)
   of SD card irrespective of GUID

   sudo dd if=u-boot.itb of=/dev/sdc1 bs=1M

Thanks to Yash Shah <yash.shah at sifive.com> for testing the series.

Changes in v5:
- Return read/write bytes for sifive_otp_read and sifive_otp_write
- Correct Palmer's email address

Changes in v4:
- Split misc DM driver patch into multiple patches
- Added new SPL_CRC7_SUPPORT Kconfig option
- Added DM driver for DDR
- Added clk_enable and clk_disable ops in SiFive PRCI driver
- Added early clock initialization for SPL in SiFive PRCI driver
- Added SPL config options in sifive_fu540_defconfig instead of
  creatiing a new config file for SPL
- Update fu540.rst on how to build and flash U-boot SPL

Changes in v3:
- Remove arch-fu540 and arch-sifive from arch/riscv/include/asm/
- Split SPL patches into DDR and SPL and spl defconfig
- Update fu540/MAINTAINERS file
- Update fu540.rst on how to build and flash U-boot SPL

Changes in v2:
- Add DM driver Sifive OTP
- Split SPL patches into multiple patches
- Add a seprate patch for _image_binary_end and crc7.c
- Add a seprate patch to add board -u-boot.dtsi files
- Update FU540 RISC-V documentation


Pragnesh Patel (14):
  misc: add driver for the SiFive otp controller
  riscv: sifive: fu540: Use OTP DM driver for serial environment
    variable
  riscv: Add _image_binary_end for SPL
  lib: Makefile: build crc7.c when CONFIG_MMC_SPI
  riscv: sifive: dts: fu540: Add board -u-boot.dtsi files
  sifive: fu540: add ddr driver
  sifive: dts: fu540: Add DDR controller and phy register settings
  clk: sifive: fu540-prci: Add clock enable and disable ops
  clk: sifive: fu540-prci: Add clock initialization for SPL
  riscv: sifive: fu540: add SPL configuration
  configs: fu540: Add config options for U-boot SPL
  riscv: sifive: fu540: enable all cache ways from u-boot proper
  sifive: fix palmer's email address
  doc: update FU540 RISC-V documentation

 arch/riscv/cpu/u-boot-spl.lds                 |    1 +
 arch/riscv/dts/fu540-c000-u-boot.dtsi         |   63 +
 arch/riscv/dts/fu540-sdram-ddr4.dtsi          | 1489 +++++++++++++++++
 .../dts/hifive-unleashed-a00-u-boot.dtsi      |   23 +
 board/sifive/fu540/Kconfig                    |   10 +
 board/sifive/fu540/MAINTAINERS                |    2 +-
 board/sifive/fu540/Makefile                   |    5 +
 board/sifive/fu540/cache.c                    |   20 +
 board/sifive/fu540/cache.h                    |   13 +
 board/sifive/fu540/fu540-memory-map.h         |   23 +
 board/sifive/fu540/fu540.c                    |  141 +-
 board/sifive/fu540/spl.c                      |   78 +
 common/spl/Kconfig                            |    7 +
 configs/sifive_fu540_defconfig                |   11 +
 doc/board/sifive/fu540.rst                    |  409 ++++-
 drivers/clk/sifive/fu540-prci.c               |  169 +-
 drivers/misc/Kconfig                          |    7 +
 drivers/misc/Makefile                         |    1 +
 drivers/misc/sifive-otp.c                     |  241 +++
 drivers/ram/Kconfig                           |    7 +
 drivers/ram/Makefile                          |    2 +
 drivers/ram/sifive/Kconfig                    |    8 +
 drivers/ram/sifive/Makefile                   |    6 +
 drivers/ram/sifive/sdram_fu540.c              |  295 ++++
 drivers/ram/sifive/sdram_fu540.h              |   94 ++
 include/configs/sifive-fu540.h                |   18 +
 lib/Makefile                                  |    1 +
 27 files changed, 3042 insertions(+), 102 deletions(-)
 create mode 100644 arch/riscv/dts/fu540-c000-u-boot.dtsi
 create mode 100644 arch/riscv/dts/fu540-sdram-ddr4.dtsi
 create mode 100644 arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi
 create mode 100644 board/sifive/fu540/cache.c
 create mode 100644 board/sifive/fu540/cache.h
 create mode 100644 board/sifive/fu540/fu540-memory-map.h
 create mode 100644 board/sifive/fu540/spl.c
 create mode 100644 drivers/misc/sifive-otp.c
 create mode 100644 drivers/ram/sifive/Kconfig
 create mode 100644 drivers/ram/sifive/Makefile
 create mode 100644 drivers/ram/sifive/sdram_fu540.c
 create mode 100644 drivers/ram/sifive/sdram_fu540.h

-- 
2.17.1