[PATCH v2 0/4] update clock handler and proper cpu features
Sagar Shrikant Kadam
sagar.kadam at sifive.com
Tue May 26 19:09:07 CEST 2020
U-Boot cmd "cpu detail" shows inconsistent CPU features and is missing
clk_request and free handlers.
The current "cpu detail" sometimes shows "Microcode" as a feature, which
is not the case with FU540-C000 on HiFive Unleashed board.
Patch 1: add clk request handler to check if valid clock id is requested.
Patch 2: add cpu node aliases
Patch 3: Correctly parse and update mmu-type.
RISC-V core's on FU540-C000 SoC have separate instruction and data (split)
L1 cache.
Patch 4:Use i-cache-size dt property as one of identifier to indicate a
split cache is available.
I have picked few dependent patches from Sean's and Pragnesh's latest
series from here [1]...[5].
These have applied on mainline U-Boot
commit 8c48bb21bd6a ("Prepare v2020.07-rc3")
Patch history:
=============================================
V2:
1. Incorporate review comments from Bin and Sean Anderson.
and dropped 2nd patch as similar work was already done in [1] & [2]
2 Add cpu node aliases to display cpu node's in sequence.
3. Add fix to show mmu as available cpu feature.
4. Check and append L1 cache feature.
V1: Base version.
Thanks to Vincent Chen <vincent.chen at sifive.com> for testing the V1
version of this series.
[1] https://patchwork.ozlabs.org/patch/1295345
[2] https://patchwork.ozlabs.org/patch/1295346
[3] https://patchwork.ozlabs.org/patch/1297146
[4] https://patchwork.ozlabs.org/patch/1297147
[5] https://patchwork.ozlabs.org/patch/1297149
All these together is available here:
https://github.com/sagsifive/u-boot/commits/dev/sagark/clk-v2
Sagar Shrikant Kadam (4):
fu540: prci: add request and free clock handlers
riscv: dts: hifive-unleashed-a00: add cpu aliases
riscv: cpu: fixes to display proper CPU features
riscv: cpu: check and append L1 cache to cpu features
arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi | 5 +++++
drivers/clk/sifive/fu540-prci.c | 21 +++++++++++++++++++++
drivers/cpu/riscv_cpu.c | 10 +++++++++-
3 files changed, 35 insertions(+), 1 deletion(-)
--
2.7.4
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