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From: Tzung-Bi Shih <tzungbi@google.com>
To: ohad@wizery.com, bjorn.andersson@linaro.org
Cc: linux-remoteproc@vger.kernel.org, matthias.bgg@gmail.com,
	linux-mediatek@lists.infradead.org, tzungbi@google.com
Subject: [PATCH] remoteproc/mediatek: enable MPU for all memory regions in MT8192 SCP
Date: Mon, 14 Dec 2020 13:10:47 +0800	[thread overview]
Message-ID: <20201214051047.859110-1-tzungbi@google.com> (raw)

Enables MPU for all memory regions in MT8192 SCP.

Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
---
 drivers/remoteproc/mtk_common.h | 1 +
 drivers/remoteproc/mtk_scp.c    | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/drivers/remoteproc/mtk_common.h b/drivers/remoteproc/mtk_common.h
index 94bc54b224ee..5f7cd2336cef 100644
--- a/drivers/remoteproc/mtk_common.h
+++ b/drivers/remoteproc/mtk_common.h
@@ -47,6 +47,7 @@
 
 #define MT8192_CORE0_SW_RSTN_CLR	0x10000
 #define MT8192_CORE0_SW_RSTN_SET	0x10004
+#define MT8192_CORE0_MEM_ATT_PREDEF	0x10008
 #define MT8192_CORE0_WDT_CFG		0x10034
 
 #define SCP_FW_VER_LEN			32
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index f025aba67abc..130c0b9511df 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -369,6 +369,9 @@ static int mt8192_scp_before_load(struct mtk_scp *scp)
 	mt8192_power_on_sram(scp->reg_base + MT8192_L1TCM_SRAM_PDN);
 	mt8192_power_on_sram(scp->reg_base + MT8192_CPU0_SRAM_PD);
 
+	/* enable MPU for all memory regions */
+	writel(0xff, scp->reg_base + MT8192_CORE0_MEM_ATT_PREDEF);
+
 	return 0;
 }
 
-- 
2.29.2.684.gfbc64c5ab5-goog


             reply	other threads:[~2020-12-14  5:11 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-14  5:10 Tzung-Bi Shih [this message]
2021-01-06 23:18 ` [PATCH] remoteproc/mediatek: enable MPU for all memory regions in MT8192 SCP Mathieu Poirier

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