[PATCH v8 0/7] arm64,hi6220: Enable Hisilicon Hi6220 SoC

Bintian bintian.wang at huawei.com
Fri May 29 17:37:23 PDT 2015

Hello Kevin,

On 2015/5/30 7:00, Kevin Hilman wrote:
> Hi Bintian,
> Bintian Wang <bintian.wang at huawei.com> writes:
>> From: Bintian Wang <wangbintian at gmail.com>
>> Hi6220 is one mobile solution of Hisilicon, this patchset contains
>> initial support for Hi6220 SoC and HiKey development board, which
>> supports octal ARM Cortex A53 cores. Initial support is minimal and
>> includes just the arch configuration, clock driver, device tree
>> configuration.
>> PSCI is enabled in device tree and there is no problem to boot all the
>> octal cores, and the CPU hotplug is also working now, you can download
>> and compile the latest firmware based on the following link to run this
>> patch set:
>> https://github.com/96boards/documentation/wiki/UEFI
>> Changes v6~v8:
>> This three versions only modified the clock drivers based on the
>> Stephen's review advices.
>> * clk-hi6220.c:
>>    ** Split the clock header file from clock driver
>>    ** Delete setting the parents clock of UART1 to HI6220_150M in clock
>>       driver, we can do that using assigned-clock in dts when enable
>>       UART1 in the future.
>> * clkdivider-hi6220.c:
>>    ** Reuse some functions exported by clk-divider.c
>>    ** Remove "pr_err" and CLK_IS_BASIC flag
>>    ** Fix some programing style problems
>> * hisilicon/clk.h: remove the "__init" markings on some funcition
>>    prototypes.
> It's not clear what kernel this series is meant to apply to.  It doesn't
> apply cleanly to v4.1-rc2 (the version stated for v5) or the current -rc
> (v4.1-rc5) it also doesn't apply cleanly to linus/master or linux-next.
> If the series doesn't apply to Linus tree, please state clearly in the
> changelog what tree it should apply to as well as any dependncies.
> Also, this version is missing patch 1 from the v6 series, which adds the
> Kconfig/defconfig changes. Without that patch, nothing in this series is
> even compiled (clk driver or DTS files.)
> So my recommendation, since the clock driver is very close to being
> merged:
> Please create a v9 series with *only* the patches that are not already
> queued up on the clk tree[1].  That should be patches 1-3 and 7 of this
> series, plus patch 1 from v6.
> That series should apply cleanly to v4.1-rc1 (or a newer -rc if there
> are dependencies.)  In the changelog to that series, state the version
> that it applies to, and also state that it depends on the clk-next
> branch where the clock maintainers have queued up the driver[1].
> Then all that's left is to collect an ack from a DT maintainer, and
> these can be queued up via the arm-soc tree.
> FWIW, I've boot tested patches 1-3 and 7 of this series, plus patch 1
> from v6 combined with the clk-next-hi6220 branch[1] on my board (which
> uses ATF + mainline u-boot) and all 8 A53 cores are coming up, so feel
> free to add:
> Tested-by: Kevin Hilman <khilman at linaro.org>
> to your v9 series.
Very good and detailed instructions, I will prepare the v9 soon.


> Thanks,
> Kevin
> [1] git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next-hi6220
> .

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