From: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
To: Ohad Ben-Cohen <ohad@wizery.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: 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>,
Allen-KH Cheng <allen-kh.cheng@mediatek.com>
Subject: [PATCH] remoteproc: mediatek: enable cache for mt8186 SCP
Date: Tue, 22 Mar 2022 20:28:45 +0800 [thread overview]
Message-ID: <20220322122845.4068-1-allen-kh.cheng@mediatek.com> (raw)
1. Set SCP cache size before loading SCP FW. (8KB+8KB)
2. Adjust ipi_buf_offset from 0x7bdb0 to 0x3BDB0 for enableing cache
SCP side
- IPI Buffer: 0x3BDB0 <-> 0x3C000
- Cache: 0x3C000 <-> 0x40000
Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
---
drivers/remoteproc/mtk_scp.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index 38609153bf64..24065b6b4da8 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -401,6 +401,14 @@ static int mt8186_scp_before_load(struct mtk_scp *scp)
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;
}
@@ -905,7 +913,7 @@ static const struct mtk_scp_of_data mt8186_of_data = {
.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,
- .ipi_buf_offset = 0x7bdb0,
+ .ipi_buf_offset = 0x3bdb0,
};
static const struct mtk_scp_of_data mt8192_of_data = {
--
2.18.0
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2022-03-22 12:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-22 12:28 Allen-KH Cheng [this message]
2022-03-24 15:56 ` [PATCH] remoteproc: mediatek: enable cache for mt8186 SCP Mathieu Poirier
2022-03-25 9:01 ` allen-kh.cheng
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220322122845.4068-1-allen-kh.cheng@mediatek.com \
--to=allen-kh.cheng@mediatek.com \
--cc=Project_Global_Chrome_Upstream_Group@mediatek.com \
--cc=bjorn.andersson@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=linux-remoteproc@vger.kernel.org \
--cc=mathieu.poirier@linaro.org \
--cc=matthias.bgg@gmail.com \
--cc=ohad@wizery.com \
--cc=robh+dt@kernel.org \
--cc=tinghan.shen@mediatek.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox