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