linux-kernel - [PATCH] memory: mtk-smi: Add ostd setting for mt8192

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Message-ID: <20250307054515.23455-1-xueqi.zhang@mediatek.com>
Date: Fri, 7 Mar 2025 13:45:08 +0800
From: Xueqi Zhang <xueqi.zhang@...iatek.com>
To: Yong Wu <yong.wu@...iatek.com>, Krzysztof Kozlowski <krzk@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>
CC: <Project_Global_Chrome_Upstream_Group@...iatek.com>,
	<linux-mediatek@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, Xueqi Zhang
	<xueqi.zhang@...iatek.com>
Subject: [PATCH] memory: mtk-smi: Add ostd setting for mt8192

Add initial ostd setting for mt8192. All the settings come from DE.
These settings help adjust Multimedia HW's bandwidth limits to achieve
a balanced bandwidth requirement.
Without this, the VENC HW work abnormal while stress testing.

Fixes: 02c02ddce427 ("memory: mtk-smi: Add mt8192 support")
Signed-off-by: Xueqi Zhang <xueqi.zhang@...iatek.com>
---
 drivers/memory/mtk-smi.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
index 5710348f72f6..a8f5467d6b31 100644
--- a/drivers/memory/mtk-smi.c
+++ b/drivers/memory/mtk-smi.c
@@ -332,6 +332,38 @@ static const u8 mtk_smi_larb_mt8188_ostd[][SMI_LARB_PORT_NR_MAX] = {
 	[25] = {0x01},
 };
 
+static const u8 mtk_smi_larb_mt8192_ostd[][SMI_LARB_PORT_NR_MAX] = {
+	[0] = {0x2, 0x2, 0x28, 0xa, 0xc, 0x28,},
+	[1] = {0x2, 0x2, 0x18, 0x18, 0x18, 0xa, 0xc, 0x28,},
+	[2] = {0x5, 0x5, 0x5, 0x5, 0x1,},
+	[3] = {},
+	[4] = {0x28, 0x19, 0xb, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x4, 0x1,},
+	[5] = {0x1, 0x1, 0x4, 0x1, 0x1, 0x1, 0x1, 0x16,},
+	[6] = {},
+	[7] = {0x1, 0x3, 0x2, 0x1, 0x1, 0x5, 0x2, 0x12, 0x13, 0x4, 0x4, 0x1,
+	       0x4, 0x2, 0x1,},
+	[8] = {},
+	[9] = {0xa, 0x7, 0xf, 0x8, 0x1, 0x8, 0x9, 0x3, 0x3, 0x6, 0x7, 0x4,
+	       0xa, 0x3, 0x4, 0xe, 0x1, 0x7, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1,
+	       0x1, 0x1, 0x1, 0x1, 0x1,},
+	[10] = {},
+	[11] = {0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1,
+		0x1, 0x1, 0x1, 0xe, 0x1, 0x7, 0x8, 0x7, 0x7, 0x1, 0x6, 0x2,
+		0xf, 0x8, 0x1, 0x1, 0x1,},
+	[12] = {},
+	[13] = {0x2, 0xc, 0xc, 0xe, 0x6, 0x6, 0x6, 0x6, 0x6, 0x12, 0x6, 0x28,
+		0x2, 0xc, 0xc, 0x28, 0x12, 0x6,},
+	[14] = {},
+	[15] = {0x28, 0x14, 0x2, 0xc, 0x18, 0x4, 0x28, 0x14, 0x4, 0x4, 0x4, 0x2,
+		0x4, 0x2, 0x8, 0x4, 0x4,},
+	[16] = {0x28, 0x14, 0x2, 0xc, 0x18, 0x4, 0x28, 0x14, 0x4, 0x4, 0x4, 0x2,
+		0x4, 0x2, 0x8, 0x4, 0x4,},
+	[17] = {0x28, 0x14, 0x2, 0xc, 0x18, 0x4, 0x28, 0x14, 0x4, 0x4, 0x4, 0x2,
+		0x4, 0x2, 0x8, 0x4, 0x4,},
+	[18] = {0x2, 0x2, 0x4, 0x2,},
+	[19] = {0x9, 0x9, 0x5, 0x5, 0x1, 0x1,},
+};
+
 static const u8 mtk_smi_larb_mt8195_ostd[][SMI_LARB_PORT_NR_MAX] = {
 	[0] = {0x0a, 0xc, 0x22, 0x22, 0x01, 0x0a,}, /* larb0 */
 	[1] = {0x0a, 0xc, 0x22, 0x22, 0x01, 0x0a,}, /* larb1 */
@@ -427,6 +459,7 @@ static const struct mtk_smi_larb_gen mtk_smi_larb_mt8188 = {
 
 static const struct mtk_smi_larb_gen mtk_smi_larb_mt8192 = {
 	.config_port                = mtk_smi_larb_config_port_gen2_general,
+	.ostd			    = mtk_smi_larb_mt8192_ostd,
 };
 
 static const struct mtk_smi_larb_gen mtk_smi_larb_mt8195 = {
-- 
2.46.0