From: allen-kh.cheng <allen-kh.cheng@mediatek.com>
To: Mathieu Poirier <mathieu.poirier@linaro.org>,
<angelogioacchino.delregno@collabora.com>
Cc: Ohad Ben-Cohen <ohad@wizery.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
"Matthias Brugger" <matthias.bgg@gmail.com>,
Tinghan Shen <tinghan.shen@mediatek.com>,
<Project_Global_Chrome_Upstream_Group@mediatek.com>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-remoteproc@vger.kernel.org>
Subject: Re: [PATCH v6 2/2] remoteproc: mediatek: Support mt8186 scp
Date: Wed, 16 Mar 2022 10:06:29 +0800 [thread overview]
Message-ID: <bcaf699311146a108ded176ef20874fa20e56165.camel@mediatek.com> (raw)
In-Reply-To: <20220315151349.GA2479752@p14s>
On Tue, 2022-03-15 at 09:13 -0600, Mathieu Poirier wrote:
> On Tue, Mar 15, 2022 at 08:47:47PM +0800, Allen-KH Cheng wrote:
> > From: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>
> >
> > Add SCP support for mt8186
>
> V5 of this patchset is already in rproc-next and as such this one
> does not
> apply.
>
> >
> > Signed-off-by: Allen-KH Cheng <Allen-KH.Cheng@mediatek.com>
> > Reviewed-by: AngeloGioacchino Del Regno <
> > angelogioacchino.delregno@collabora.com>
>
> As far as I can see from the mailing list interactions, Angelo did
> not review
> the new section about cache initialisation and yet his RoB is
> present. And to
> make matters worse he was not on the recipient list, which I have
> corrected.
>
> Thanks,
> Mathieu
>
Hi Mathieu,
Thanks for your friendly reminder.
I'll pay more attention to that next time.
Thanks,
Allen
> > ---
> > drivers/remoteproc/mtk_common.h | 3 +++
> > drivers/remoteproc/mtk_scp.c | 42
> > +++++++++++++++++++++++++++++++++
> > 2 files changed, 45 insertions(+)
> >
> > diff --git a/drivers/remoteproc/mtk_common.h
> > b/drivers/remoteproc/mtk_common.h
> > index 5ff3867c72f3..71ce4977cb0b 100644
> > --- a/drivers/remoteproc/mtk_common.h
> > +++ b/drivers/remoteproc/mtk_common.h
> > @@ -32,6 +32,9 @@
> > #define MT8183_SCP_CACHESIZE_8KB BIT(8)
> > #define MT8183_SCP_CACHE_CON_WAYEN BIT(10)
> >
> > +#define MT8186_SCP_L1_SRAM_PD_P1 0x40B0
> > +#define MT8186_SCP_L1_SRAM_PD_p2 0x40B4
> > +
> > #define MT8192_L2TCM_SRAM_PD_0 0x10C0
> > #define MT8192_L2TCM_SRAM_PD_1 0x10C4
> > #define MT8192_L2TCM_SRAM_PD_2 0x10C8
> > diff --git a/drivers/remoteproc/mtk_scp.c
> > b/drivers/remoteproc/mtk_scp.c
> > index dcddb33e9997..11be6b4235eb 100644
> > --- a/drivers/remoteproc/mtk_scp.c
> > +++ b/drivers/remoteproc/mtk_scp.c
> > @@ -383,6 +383,35 @@ static void mt8192_power_off_sram(void __iomem
> > *addr)
> > writel(GENMASK(i, 0), addr);
> > }
> >
> > +static int mt8186_scp_before_load(struct mtk_scp *scp)
> > +{
> > + /* Clear SCP to host interrupt */
> > + writel(MT8183_SCP_IPC_INT_BIT, scp->reg_base +
> > MT8183_SCP_TO_HOST);
> > +
> > + /* Reset clocks before loading FW */
> > + writel(0x0, scp->reg_base + MT8183_SCP_CLK_SW_SEL);
> > + writel(0x0, scp->reg_base + MT8183_SCP_CLK_DIV_SEL);
> > +
> > + /* Turn on the power of SCP's SRAM before using it. Enable 1
> > block per time*/
> > + mt8192_power_on_sram(scp->reg_base + MT8183_SCP_SRAM_PDN);
> > +
> > + /* Initialize TCM before loading FW. */
> > + writel(0x0, scp->reg_base + MT8183_SCP_L1_SRAM_PD);
> > + writel(0x0, scp->reg_base + MT8183_SCP_TCM_TAIL_SRAM_PD);
> > + writel(0x0, scp->reg_base + MT8186_SCP_L1_SRAM_PD_P1);
> > + writel(0x0, scp->reg_base + MT8186_SCP_L1_SRAM_PD_p2);
> > +
> > + /*
> > + * Set I-cache and D-cache size before loading SCP FW.
> > + * SCP SRAM logical address may change when cache size setting
> > differs.
> > + */
> > + writel(MT8183_SCP_CACHE_CON_WAYEN | MT8183_SCP_CACHESIZE_8KB,
> > + scp->reg_base + MT8183_SCP_CACHE_CON);
> > + writel(MT8183_SCP_CACHESIZE_8KB, scp->reg_base +
> > MT8183_SCP_DCACHE_CON);
> > +
> > + return 0;
> > +}
> > +
> > static int mt8192_scp_before_load(struct mtk_scp *scp)
> > {
> > /* clear SPM interrupt, SCP2SPM_IPC_CLR */
> > @@ -874,6 +903,18 @@ static const struct mtk_scp_of_data
> > mt8183_of_data = {
> > .ipi_buf_offset = 0x7bdb0,
> > };
> >
> > +static const struct mtk_scp_of_data mt8186_of_data = {
> > + .scp_clk_get = mt8195_scp_clk_get,
> > + .scp_before_load = mt8186_scp_before_load,
> > + .scp_irq_handler = mt8183_scp_irq_handler,
> > + .scp_reset_assert = mt8183_scp_reset_assert,
> > + .scp_reset_deassert = mt8183_scp_reset_deassert,
> > + .scp_stop = mt8183_scp_stop,
> > + .scp_da_to_va = mt8183_scp_da_to_va,
> > + .host_to_scp_reg = MT8183_HOST_TO_SCP,
> > + .host_to_scp_int_bit = MT8183_HOST_IPC_INT_BIT,
> > +};
> > +
> > static const struct mtk_scp_of_data mt8192_of_data = {
> > .scp_clk_get = mt8192_scp_clk_get,
> > .scp_before_load = mt8192_scp_before_load,
> > @@ -900,6 +941,7 @@ static const struct mtk_scp_of_data
> > mt8195_of_data = {
> >
> > static const struct of_device_id mtk_scp_of_match[] = {
> > { .compatible = "mediatek,mt8183-scp", .data = &mt8183_of_data
> > },
> > + { .compatible = "mediatek,mt8186-scp", .data = &mt8186_of_data
> > },
> > { .compatible = "mediatek,mt8192-scp", .data = &mt8192_of_data
> > },
> > { .compatible = "mediatek,mt8195-scp", .data = &mt8195_of_data
> > },
> > {},
> > --
> > 2.18.0
> >
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prev parent reply other threads:[~2022-03-16 2:08 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-15 12:47 [PATCH v6 0/2] Add SCP support for mt8186 Allen-KH Cheng
2022-03-15 12:47 ` [PATCH v6 1/2] dt-bindings: remoteproc: mediatek: Add binding for mt8186 scp Allen-KH Cheng
2022-03-15 12:47 ` [PATCH v6 2/2] remoteproc: mediatek: Support " Allen-KH Cheng
2022-03-15 15:13 ` Mathieu Poirier
2022-03-16 2:06 ` allen-kh.cheng [this message]
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