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mediatek: filogic: move ilm, dlm and cpu_boot in dedicated nodes

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This fixes issues with legacy boot loaders that don't process reserved memory
regions outside of system RAM

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2023-03-14 12:04:53 +01:00 committed by Felix Fietkau
parent 1d8baafc43
commit e314f7be7e
7 changed files with 522 additions and 0 deletions
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44
target/linux/mediatek/patches-5.15/940-net-ethernet-mtk_wed-rename-mtk_wed_get_memory_regio.patch Normal file
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From 3cf212c4ce6cd72c09bc47f35f539ba0afd4d106 Mon Sep 17 00:00:00 2001
Message-Id: <3cf212c4ce6cd72c09bc47f35f539ba0afd4d106.1678716918.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sun, 12 Mar 2023 16:40:31 +0100
Subject: [PATCH net-next 1/2] net: ethernet: mtk_wed: rename
mtk_wed_get_memory_region in mtk_wed_get_reserved_memory_region
This is a preliminary patch to move wed ilm/dlm and cpuboot properties in
dedicated dts nodes.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_wed_mcu.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/net/ethernet/mediatek/mtk_wed_mcu.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c
@@ -215,8 +215,8 @@ int mtk_wed_mcu_msg_update(struct mtk_we
}
static int
-mtk_wed_get_memory_region(struct mtk_wed_wo *wo,
- struct mtk_wed_wo_memory_region *region)
+mtk_wed_get_reserved_memory_region(struct mtk_wed_wo *wo,
+ struct mtk_wed_wo_memory_region *region)
{
struct reserved_mem *rmem;
struct device_node *np;
@@ -311,13 +311,13 @@ mtk_wed_mcu_load_firmware(struct mtk_wed
/* load firmware region metadata */
for (i = 0; i < ARRAY_SIZE(mem_region); i++) {
- ret = mtk_wed_get_memory_region(wo, &mem_region[i]);
+ ret = mtk_wed_get_reserved_memory_region(wo, &mem_region[i]);
if (ret)
return ret;
}
wo->boot.name = "wo-boot";
- ret = mtk_wed_get_memory_region(wo, &wo->boot);
+ ret = mtk_wed_get_reserved_memory_region(wo, &wo->boot);
if (ret)
return ret;

65
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From 247e566e3459481f1fa98733534bfed767e18b42 Mon Sep 17 00:00:00 2001
Message-Id: <247e566e3459481f1fa98733534bfed767e18b42.1678620342.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sat, 11 Mar 2023 16:32:41 +0100
Subject: [PATCH net-next] arm64: dts: mt7986: move cpuboot in a dedicated node
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 21 +++++++++++----------
1 file changed, 11 insertions(+), 10 deletions(-)
--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -121,11 +121,6 @@
reg = <0 0x151f8000 0 0x2000>;
no-map;
};
-
- wo_boot: wo-boot@15194000 {
- reg = <0 0x15194000 0 0x1000>;
- no-map;
- };
};
timer {
@@ -625,10 +620,11 @@
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
memory-region = <&wo_emi0>, <&wo_ilm0>, <&wo_dlm0>,
- <&wo_data>, <&wo_boot>;
+ <&wo_data>;
memory-region-names = "wo-emi", "wo-ilm", "wo-dlm",
- "wo-data", "wo-boot";
+ "wo-data";
mediatek,wo-ccif = <&wo_ccif0>;
+ mediatek,wo-cpuboot = <&wo_cpuboot>;
};
wed1: wed@15011000 {
@@ -638,10 +634,11 @@
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;
memory-region = <&wo_emi1>, <&wo_ilm1>, <&wo_dlm1>,
- <&wo_data>, <&wo_boot>;
+ <&wo_data>;
memory-region-names = "wo-emi", "wo-ilm", "wo-dlm",
- "wo-data", "wo-boot";
+ "wo-data";
mediatek,wo-ccif = <&wo_ccif1>;
+ mediatek,wo-cpuboot = <&wo_cpuboot>;
};
wo_ccif0: syscon@151a5000 {
@@ -658,6 +655,11 @@
interrupts = <GIC_SPI 212 IRQ_TYPE_LEVEL_HIGH>;
};
+ wo_cpuboot: syscon@15194000 {
+ compatible = "mediatek,mt7986-wo-cpuboot", "syscon";
+ reg = <0 0x15194000 0 0x1000>;
+ };
+
eth: ethernet@15100000 {
compatible = "mediatek,mt7986-eth";
reg = <0 0x15100000 0 0x80000>;

96
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From f292d1bf83ec160bef2532b58aa08f5b71041923 Mon Sep 17 00:00:00 2001
Message-Id: <f292d1bf83ec160bef2532b58aa08f5b71041923.1678716918.git.lorenzo@kernel.org>
In-Reply-To: <3cf212c4ce6cd72c09bc47f35f539ba0afd4d106.1678716918.git.lorenzo@kernel.org>
References: <3cf212c4ce6cd72c09bc47f35f539ba0afd4d106.1678716918.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sat, 11 Mar 2023 18:13:04 +0100
Subject: [PATCH net-next 2/2] net: ethernet: mtk_wed: move cpuboot in a
dedicated dts node
Since the cpuboot memory region is not part of the RAM SoC, move cpuboot
in a deidicated syscon node.
This patch helps to keep backward-compatibility with older version of
uboot codebase where we have a limit of 8 reserved-memory dts child
nodes.
Keep backward-compatibility with older dts version where cpuboot was
defined as reserved-memory child node.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_wed_mcu.c | 34 +++++++++++++++++----
drivers/net/ethernet/mediatek/mtk_wed_wo.h | 3 +-
2 files changed, 30 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_wed_mcu.c b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c
index 6624f6d6abdd..797c3b412ab6 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed_mcu.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c
@@ -18,12 +18,23 @@
static u32 wo_r32(struct mtk_wed_wo *wo, u32 reg)
{
- return readl(wo->boot.addr + reg);
+ u32 val;
+
+ if (!wo->boot_regmap)
+ return readl(wo->boot.addr + reg);
+
+ if (regmap_read(wo->boot_regmap, reg, &val))
+ val = ~0;
+
+ return val;
}
static void wo_w32(struct mtk_wed_wo *wo, u32 reg, u32 val)
{
- writel(val, wo->boot.addr + reg);
+ if (wo->boot_regmap)
+ regmap_write(wo->boot_regmap, reg, val);
+ else
+ writel(val, wo->boot.addr + reg);
}
static struct sk_buff *
@@ -316,10 +327,21 @@ mtk_wed_mcu_load_firmware(struct mtk_wed_wo *wo)
return ret;
}
- wo->boot.name = "wo-boot";
- ret = mtk_wed_get_reserved_memory_region(wo, &wo->boot);
- if (ret)
- return ret;
+ wo->boot_regmap = syscon_regmap_lookup_by_phandle(wo->hw->node,
+ "mediatek,wo-cpuboot");
+ if (IS_ERR(wo->boot_regmap)) {
+ if (wo->boot_regmap != ERR_PTR(-ENODEV))
+ return PTR_ERR(wo->boot_regmap);
+
+ /* For backward compatibility, we need to check if cpu_boot
+ * is defined through reserved memory property.
+ */
+ wo->boot_regmap = NULL;
+ wo->boot.name = "wo-boot";
+ ret = mtk_wed_get_reserved_memory_region(wo, &wo->boot);
+ if (ret)
+ return ret;
+ }
/* set dummy cr */
wed_w32(wo->hw->wed_dev, MTK_WED_SCR0 + 4 * MTK_WED_DUMMY_CR_FWDL,
diff --git a/drivers/net/ethernet/mediatek/mtk_wed_wo.h b/drivers/net/ethernet/mediatek/mtk_wed_wo.h
index dbcf42ce9173..c03071203cc0 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed_wo.h
+++ b/drivers/net/ethernet/mediatek/mtk_wed_wo.h
@@ -227,7 +227,8 @@ struct mtk_wed_wo_queue {
struct mtk_wed_wo {
struct mtk_wed_hw *hw;
- struct mtk_wed_wo_memory_region boot;
+ struct mtk_wed_wo_memory_region boot; /* backward compatibility */
+ struct regmap *boot_regmap;
struct mtk_wed_wo_queue q_tx;
struct mtk_wed_wo_queue q_rx;
--
2.39.2

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@ -0,0 +1,96 @@
From f3565e6c2276411275e707a5442d3f69cc111273 Mon Sep 17 00:00:00 2001
Message-Id: <f3565e6c2276411275e707a5442d3f69cc111273.1678718888.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Sun, 12 Mar 2023 18:51:47 +0100
Subject: [PATCH net-next 1/3] net: ethernet: mtk_wed: move ilm a dedicated dts
node
Since the ilm memory region is not part of the RAM SoC, move ilm in a
deidicated syscon node.
This patch helps to keep backward-compatibility with older version of
uboot codebase where we have a limit of 8 reserved-memory dts child
nodes.
Keep backward-compatibility with older dts version where ilm was defined
as reserved-memory child node.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_wed_mcu.c | 55 ++++++++++++++++++---
1 file changed, 49 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_wed_mcu.c b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c
index 797c3b412ab6..976946a3653a 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed_mcu.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c
@@ -299,6 +299,52 @@ mtk_wed_mcu_run_firmware(struct mtk_wed_wo *wo, const struct firmware *fw,
return -EINVAL;
}
+static int
+mtk_wed_mcu_load_memory_regions(struct mtk_wed_wo *wo,
+ struct mtk_wed_wo_memory_region *region)
+{
+ struct device_node *np;
+ int ret;
+
+ /* firmware EMI memory region */
+ ret = mtk_wed_get_reserved_memory_region(wo,
+ &region[MTK_WED_WO_REGION_EMI]);
+ if (ret)
+ return ret;
+
+ /* firmware DATA memory region */
+ ret = mtk_wed_get_reserved_memory_region(wo,
+ &region[MTK_WED_WO_REGION_DATA]);
+ if (ret)
+ return ret;
+
+ np = of_parse_phandle(wo->hw->node, "mediatek,wo-ilm", 0);
+ if (np) {
+ struct mtk_wed_wo_memory_region *ilm_region;
+ struct resource res;
+
+ ret = of_address_to_resource(np, 0, &res);
+ of_node_put(np);
+
+ if (ret < 0)
+ return ret;
+
+ ilm_region = &region[MTK_WED_WO_REGION_ILM];
+ ilm_region->phy_addr = res.start;
+ ilm_region->size = resource_size(&res);
+ ilm_region->addr = devm_ioremap(wo->hw->dev, res.start,
+ resource_size(&res));
+
+ return IS_ERR(ilm_region->addr) ? PTR_ERR(ilm_region->addr) : 0;
+ }
+
+ /* For backward compatibility, we need to check if ILM
+ * node is defined through reserved memory property.
+ */
+ return mtk_wed_get_reserved_memory_region(wo,
+ &region[MTK_WED_WO_REGION_ILM]);
+}
+
static int
mtk_wed_mcu_load_firmware(struct mtk_wed_wo *wo)
{
@@ -320,12 +366,9 @@ mtk_wed_mcu_load_firmware(struct mtk_wed_wo *wo)
u32 val, boot_cr;
int ret, i;
- /* load firmware region metadata */
- for (i = 0; i < ARRAY_SIZE(mem_region); i++) {
- ret = mtk_wed_get_reserved_memory_region(wo, &mem_region[i]);
- if (ret)
- return ret;
- }
+ ret = mtk_wed_mcu_load_memory_regions(wo, mem_region);
+ if (ret)
+ return ret;
wo->boot_regmap = syscon_regmap_lookup_by_phandle(wo->hw->node,
"mediatek,wo-cpuboot");
--
2.39.2

57
target/linux/mediatek/patches-5.15/944-net-ethernet-mtk_wed-move-dlm-a-dedicated-dts-node.patch Normal file
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@ -0,0 +1,57 @@
From b74ba226be2c45091b93bd49192bdd6d2178729e Mon Sep 17 00:00:00 2001
Message-Id: <b74ba226be2c45091b93bd49192bdd6d2178729e.1678718888.git.lorenzo@kernel.org>
In-Reply-To: <f3565e6c2276411275e707a5442d3f69cc111273.1678718888.git.lorenzo@kernel.org>
References: <f3565e6c2276411275e707a5442d3f69cc111273.1678718888.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 13 Mar 2023 15:45:16 +0100
Subject: [PATCH net-next 3/3] net: ethernet: mtk_wed: move dlm a dedicated dts
node
Since the dlm memory region is not part of the RAM SoC, move dlm in a
deidicated syscon node.
This patch helps to keep backward-compatibility with older version of
uboot codebase where we have a limit of 8 reserved-memory dts child
nodes.
Keep backward-compatibility with older dts version where dlm was defined
as reserved-memory child node.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_wed.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -806,6 +806,24 @@ mtk_wed_rro_alloc(struct mtk_wed_device
struct device_node *np;
int index;
+ np = of_parse_phandle(dev->hw->node, "mediatek,wo-dlm", 0);
+ if (np) {
+ struct resource res;
+ int ret;
+
+ ret = of_address_to_resource(np, 0, &res);
+ of_node_put(np);
+
+ if (ret < 0)
+ return ret;
+
+ dev->rro.miod_phys = res.start;
+ goto out;
+ }
+
+ /* For backward compatibility, we need to check if DLM
+ * node is defined through reserved memory property.
+ */
index = of_property_match_string(dev->hw->node, "memory-region-names",
"wo-dlm");
if (index < 0)
@@ -822,6 +840,7 @@ mtk_wed_rro_alloc(struct mtk_wed_device
return -ENODEV;
dev->rro.miod_phys = rmem->base;
+out:
dev->rro.fdbk_phys = MTK_WED_MIOD_COUNT + dev->rro.miod_phys;
return mtk_wed_rro_ring_alloc(dev, &dev->rro.ring,

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@ -0,0 +1,83 @@
From 01561065af5bf1d2a4244896d897e3a1eafbcd46 Mon Sep 17 00:00:00 2001
Message-Id: <01561065af5bf1d2a4244896d897e3a1eafbcd46.1678717704.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 13 Mar 2023 15:10:56 +0100
Subject: [PATCH net-next] arm64: dts: mt7986: move ilm in a dedicated node
Since the ilm memory region is not part of the RAM SoC, move ilm in a
deidicated syscon node.
This patch helps to keep backward-compatibility with older version of
uboot codebase where we have a limit of 8 reserved-memory dts child
nodes.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 34 +++++++++++------------
1 file changed, 16 insertions(+), 18 deletions(-)
--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -97,16 +97,6 @@
no-map;
};
- wo_ilm0: wo-ilm@151e0000 {
- reg = <0 0x151e0000 0 0x8000>;
- no-map;
- };
-
- wo_ilm1: wo-ilm@151f0000 {
- reg = <0 0x151f0000 0 0x8000>;
- no-map;
- };
-
wo_data: wo-data@4fd80000 {
reg = <0 0x4fd80000 0 0x240000>;
no-map;
@@ -619,11 +609,10 @@
reg = <0 0x15010000 0 0x1000>;
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
- memory-region = <&wo_emi0>, <&wo_ilm0>, <&wo_dlm0>,
- <&wo_data>;
- memory-region-names = "wo-emi", "wo-ilm", "wo-dlm",
- "wo-data";
+ memory-region = <&wo_emi0>, <&wo_dlm0>, <&wo_data>;
+ memory-region-names = "wo-emi", "wo-dlm", "wo-data";
mediatek,wo-ccif = <&wo_ccif0>;
+ mediatek,wo-ilm = <&wo_ilm0>;
mediatek,wo-cpuboot = <&wo_cpuboot>;
};
@@ -633,11 +622,10 @@
reg = <0 0x15011000 0 0x1000>;
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;
- memory-region = <&wo_emi1>, <&wo_ilm1>, <&wo_dlm1>,
- <&wo_data>;
- memory-region-names = "wo-emi", "wo-ilm", "wo-dlm",
- "wo-data";
+ memory-region = <&wo_emi1>, <&wo_dlm1>, <&wo_data>;
+ memory-region-names = "wo-emi", "wo-dlm", "wo-data";
mediatek,wo-ccif = <&wo_ccif1>;
+ mediatek,wo-ilm = <&wo_ilm1>;
mediatek,wo-cpuboot = <&wo_cpuboot>;
};
@@ -655,6 +643,16 @@
interrupts = <GIC_SPI 212 IRQ_TYPE_LEVEL_HIGH>;
};
+ wo_ilm0: syscon@151e0000 {
+ compatible = "mediatek,mt7986-wo-ilm", "syscon";
+ reg = <0 0x151e0000 0 0x8000>;
+ };
+
+ wo_ilm1: syscon@151f0000 {
+ compatible = "mediatek,mt7986-wo-ilm", "syscon";
+ reg = <0 0x151f0000 0 0x8000>;
+ };
+
wo_cpuboot: syscon@15194000 {
compatible = "mediatek,mt7986-wo-cpuboot", "syscon";
reg = <0 0x15194000 0 0x1000>;

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@ -0,0 +1,81 @@
From 9f76be683a8ec498563c294bc1cc279468058302 Mon Sep 17 00:00:00 2001
Message-Id: <9f76be683a8ec498563c294bc1cc279468058302.1678719283.git.lorenzo@kernel.org>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 13 Mar 2023 15:53:30 +0100
Subject: [PATCH net-next] arm64: dts: mt7986: move dlm in a dedicated node
Since the dlm memory region is not part of the RAM SoC, move dlm in a
deidicated syscon node.
This patch helps to keep backward-compatibility with older version of
uboot codebase where we have a limit of 8 reserved-memory dts child
nodes.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 30 ++++++++++++-----------
1 file changed, 16 insertions(+), 14 deletions(-)
--- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
@@ -101,16 +101,6 @@
reg = <0 0x4fd80000 0 0x240000>;
no-map;
};
-
- wo_dlm0: wo-dlm@151e8000 {
- reg = <0 0x151e8000 0 0x2000>;
- no-map;
- };
-
- wo_dlm1: wo-dlm@151f8000 {
- reg = <0 0x151f8000 0 0x2000>;
- no-map;
- };
};
timer {
@@ -609,10 +599,11 @@
reg = <0 0x15010000 0 0x1000>;
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
- memory-region = <&wo_emi0>, <&wo_dlm0>, <&wo_data>;
- memory-region-names = "wo-emi", "wo-dlm", "wo-data";
+ memory-region = <&wo_emi0>, <&wo_data>;
+ memory-region-names = "wo-emi", "wo-data";
mediatek,wo-ccif = <&wo_ccif0>;
mediatek,wo-ilm = <&wo_ilm0>;
+ mediatek,wo-dlm = <&wo_dlm0>;
mediatek,wo-cpuboot = <&wo_cpuboot>;
};
@@ -622,10 +613,11 @@
reg = <0 0x15011000 0 0x1000>;
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;
- memory-region = <&wo_emi1>, <&wo_dlm1>, <&wo_data>;
- memory-region-names = "wo-emi", "wo-dlm", "wo-data";
+ memory-region = <&wo_emi1>, <&wo_data>;
+ memory-region-names = "wo-emi", "wo-data";
mediatek,wo-ccif = <&wo_ccif1>;
mediatek,wo-ilm = <&wo_ilm1>;
+ mediatek,wo-dlm = <&wo_dlm1>;
mediatek,wo-cpuboot = <&wo_cpuboot>;
};
@@ -653,6 +645,16 @@
reg = <0 0x151f0000 0 0x8000>;
};
+ wo_dlm0: syscon@151e8000 {
+ compatible = "mediatek,mt7986-wo-dlm", "syscon";
+ reg = <0 0x151e8000 0 0x2000>;
+ };
+
+ wo_dlm1: syscon@151f8000 {
+ compatible = "mediatek,mt7986-wo-dlm", "syscon";
+ reg = <0 0x151f8000 0 0x2000>;
+ };
+
wo_cpuboot: syscon@15194000 {
compatible = "mediatek,mt7986-wo-cpuboot", "syscon";
reg = <0 0x15194000 0 0x1000>;