u-boot/arch/riscv/lib
Sean Anderson e5ca9a7523 riscv: Rework Sifive CLINT as UCLASS_TIMER driver
This converts the clint driver from the riscv-specific interface to be a
DM-based UCLASS_TIMER driver. In addition, the SiFive DDR driver previously
implicitly depended on the CLINT to select REGMAP.

Unlike Andes's PLMT/PLIC (which AFAIK never have anything pass it a dtb),
the SiFive CLINT is part of the device tree passed in by qemu. This device
tree doesn't have a clocks or clock-frequency property on clint, so we need
to fall back on the timebase-frequency property. Perhaps in the future we
can get a clock-frequency property added to the qemu dtb.

Unlike with the Andes PLMT, the Sifive CLINT is also an IPI controller.
RISCV_SYSCON_CLINT is retained for this purpose.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@openfive.com>
2020-09-30 08:54:46 +08:00
..
andes_plic.c riscv: Clean up initialization in Andes PLIC 2020-09-30 08:54:46 +08:00
andes_plmt.c riscv: Rework Andes PLMT as a UCLASS_TIMER driver 2020-09-30 08:54:45 +08:00
asm-offsets.c riscv: Provide a mechanism to fix DT for reserved memory 2020-04-23 10:14:16 +08:00
boot.c command: Remove the cmd_tbl_t typedef 2020-05-18 18:36:55 -04:00
bootm.c common: Drop log.h from common header 2020-05-18 21:19:18 -04:00
cache.c common: Move some cache and MMU functions out of common.h 2019-12-02 18:23:55 -05:00
crt0_riscv_efi.S efi_loader: use predefined constants in crt0_*_efi.S 2019-07-16 22:17:14 +00:00
elf_riscv32_efi.lds SPDX: Convert single license tags to Linux Kernel style 2018-05-29 14:44:21 +08:00
elf_riscv64_efi.lds SPDX: Convert single license tags to Linux Kernel style 2018-05-29 14:44:21 +08:00
fdt_fixup.c fdtdec: optionally add property no-map to created reserved memory node 2020-09-22 12:54:13 -06:00
image.c common: Drop image.h from common header 2020-05-18 17:33:33 -04:00
interrupts.c riscv: additional crash information 2020-08-14 14:39:41 +08:00
Makefile riscv: Rework riscv timer driver to only support S-mode 2020-09-30 08:54:45 +08:00
mkimage_fit_opensbi.sh riscv: add a generic FIT generator script 2019-08-26 16:07:42 +08:00
reloc_riscv_efi.c riscv: Remove unused _relocate arguments 2018-07-19 16:31:37 -04:00
reset.c Revert "riscv: Allow use of reset drivers" 2020-07-24 14:55:31 +08:00
sbi.c cmd: provide command sbi 2020-08-25 09:34:47 +08:00
sbi_ipi.c riscv: Clean up IPI initialization code 2020-07-01 15:01:22 +08:00
setjmp.S riscv: rename CPU_RISCV_32/64 to match architecture names ARCH_RV32I/64I 2018-11-26 13:57:29 +08:00
sifive_clint.c riscv: Rework Sifive CLINT as UCLASS_TIMER driver 2020-09-30 08:54:46 +08:00
smp.c riscv: Clean up IPI initialization code 2020-07-01 15:01:22 +08:00
spl.c riscv: fix building with CONFIG_SPL_SMP=n 2020-08-25 09:33:45 +08:00