[PATCH 2/2] remoteproc: mediatek: Support mt8186 scp - allen-kh.cheng

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>,
	Tinghan Shen <tinghan.shen@mediatek.com>
Cc: Mark Brown <broonie@kernel.org>,
	<linux-remoteproc@vger.kernel.org>,
	<Project_Global_Chrome_Upstream_Group@mediatek.com>,
	<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	 allen-kh.cheng <allen-kh.cheng@mediatek.com>
Subject: [PATCH 2/2] remoteproc: mediatek: Support mt8186 scp
Date: Mon, 3 Jan 2022 15:58:54 +0800	[thread overview]
Message-ID: <20220103075854.10438-2-allen-kh.cheng@mediatek.com> (raw)
In-Reply-To: <20220103075854.10438-1-allen-kh.cheng@mediatek.com>

Add SCP support for mt8186

Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
---
 drivers/remoteproc/mtk_scp.c | 39 ++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index 36e48cf58ed6..38eab6b86fd7 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -365,6 +365,31 @@ static int mt8183_scp_before_load(struct mtk_scp *scp)
 	return 0;
 }
 
+static int mt8186_scp_before_load(struct mtk_scp *scp)
+{
+	int i;
+
+	/* 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*/
+	for (i = 31; i >= 0; i--)
+		writel(GENMASK(i, 0), scp->reg_base + MT8183_SCP_SRAM_PDN);
+	writel(0, 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);
+
+	return 0;
+}
+
 static void mt8192_power_on_sram(void __iomem *addr)
 {
 	int i;
@@ -887,6 +912,19 @@ 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,
+	.ipi_buf_offset = 0x7bdb0,
+};
+
 static const struct mtk_scp_of_data mt8192_of_data = {
 	.scp_clk_get = mt8192_scp_clk_get,
 	.scp_before_load = mt8192_scp_before_load,
@@ -913,6 +951,7 @@ 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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