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From:   Yong Wu <yong.wu@mediatek.com>
To:     Joerg Roedel <joro@8bytes.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Robin Murphy <robin.murphy@arm.com>,
        Rob Herring <robh+dt@kernel.org>
CC:     Evan Green <evgreen@chromium.org>, Tomasz Figa <tfiga@google.com>,
        Will Deacon <will.deacon@arm.com>,
        <linux-mediatek@lists.infradead.org>,
        <srv_heupstream@mediatek.com>, <devicetree@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <iommu@lists.linux-foundation.org>, <yingjoe.chen@mediatek.com>,
        <yong.wu@mediatek.com>, <youlin.pei@mediatek.com>,
        Nicolas Boichat <drinkcat@chromium.org>,
        <anan.sun@mediatek.com>, Matthias Kaehlcke <mka@chromium.org>
Subject: [PATCH v7 11/21] iommu/mediatek: Move vld_pa_rng into plat_data
Date:   Mon, 10 Jun 2019 20:17:50 +0800
Message-ID: <1560169080-27134-12-git-send-email-yong.wu@mediatek.com>
In-Reply-To: <1560169080-27134-1-git-send-email-yong.wu@mediatek.com>
References: <1560169080-27134-1-git-send-email-yong.wu@mediatek.com>
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Sender: linux-kernel-owner@vger.kernel.org
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Both mt8173 and mt8183 don't have this vld_pa_rng(valid physical address
range) register while mt2712 have. Move it into the plat_data.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: Evan Green <evgreen@chromium.org>
---
 drivers/iommu/mtk_iommu.c | 3 ++-
 drivers/iommu/mtk_iommu.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 8ac7034..a535dcd 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -547,7 +547,7 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data)
 			 upper_32_bits(data->protect_base);
 	writel_relaxed(regval, data->base + REG_MMU_IVRP_PADDR);
 
-	if (data->enable_4GB && data->plat_data->m4u_plat != M4U_MT8173) {
+	if (data->enable_4GB && data->plat_data->has_vld_pa_rng) {
 		/*
 		 * If 4GB mode is enabled, the validate PA range is from
 		 * 0x1_0000_0000 to 0x1_ffff_ffff. here record bit[32:30].
@@ -744,6 +744,7 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev)
 	.m4u_plat     = M4U_MT2712,
 	.has_4gb_mode = true,
 	.has_bclk     = true,
+	.has_vld_pa_rng   = true,
 	.larbid_remap = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9},
 };
 
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
index 55d73c1..e5c9dde 100644
--- a/drivers/iommu/mtk_iommu.h
+++ b/drivers/iommu/mtk_iommu.h
@@ -47,6 +47,7 @@ struct mtk_iommu_plat_data {
 	/* HW will use the EMI clock if there isn't the "bclk". */
 	bool                has_bclk;
 	bool                reset_axi;
+	bool                has_vld_pa_rng;
 	unsigned char       larbid_remap[MTK_LARB_NR_MAX];
 };
 
-- 
1.9.1